/[gentoo-x86]/eclass/eutils.eclass

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Revision 1.24		Revision 1.364
1	# Copyright 1999-2003 Gentoo Technologies, Inc.	1	# Copyright 1999-2011 Gentoo Foundation
2	# Distributed under the terms of the GNU General Public License v2	2	# Distributed under the terms of the GNU General Public License v2
3	# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.24 2003/03/03 21:27:15 vapier Exp $	3	# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.364 2011/09/21 21:46:49 mgorny Exp $
4	#
5	# Author: Martin Schlemmer <azarah@gentoo.org>
6	#
7	# This eclass is for general purpose functions that most ebuilds
8	# have to implement themselves.
9	#
10	# NB: If you add anything, please comment it!
11		4
12	ECLASS=eutils	5	# @ECLASS: eutils.eclass
13	INHERITED="$INHERITED $ECLASS"	6	# @MAINTAINER:
		7	# base-system@gentoo.org
		8	# @BLURB: many extra (but common) functions that are used in ebuilds
		9	# @DESCRIPTION:
		10	# The eutils eclass contains a suite of functions that complement
		11	# the ones that ebuild.sh already contain. The idea is that the functions
		12	# are not required in all ebuilds but enough utilize them to have a common
		13	# home rather than having multiple ebuilds implementing the same thing.
		14	#
		15	# Due to the nature of this eclass, some functions may have maintainers
		16	# different from the overall eclass!
14		17
15	newdepend "!bootstrap? ( sys-devel/patch )"	18	inherit multilib portability
16		19
17	DESCRIPTION="Based on the ${ECLASS} eclass"	20	DESCRIPTION="Based on the ${ECLASS} eclass"
18		21
19	# This function generate linker scripts in /usr/lib for dynamic	22	if has "${EAPI:-0}" 0 1 2; then
20	# libs in /lib. This is to fix linking problems when you have
21	# the .so in /lib, and the .a in /usr/lib. What happens is that
22	# in some cases when linking dynamic, the .a in /usr/lib is used
23	# instead of the .so in /lib due to gcc/libtool tweaking ld's
24	# library search path. This cause many builds to fail.
25	# See bug #4411 for more info.
26	#
27	# To use, simply call:
28	#
29	# gen_usr_ldscript libfoo.so
30	#
31	# Note that you should in general use the unversioned name of
32	# the library, as ldconfig should usually update it correctly
33	# to point to the latest version of the library present.
34	#
35	# <azarah@gentoo.org> (26 Oct 2002)
36	#
37	gen_usr_ldscript() {
38		23
39	# Just make sure it exists	24	# @FUNCTION: epause
40	dodir /usr/lib	25	# @USAGE: [seconds]
41		26	# @DESCRIPTION:
42	cat > ${D}/usr/lib/$1 <<"END_LDSCRIPT"	27	# Sleep for the specified number of seconds (default of 5 seconds). Useful when
43	/* GNU ld script	28	# printing a message the user should probably be reading and often used in
44	Because Gentoo have critical dynamic libraries	29	# conjunction with the ebeep function. If the EPAUSE_IGNORE env var is set,
45	in /lib, and the static versions in /usr/lib, we	30	# don't wait at all. Defined in EAPIs 0 1 and 2.
46	need to have a "fake" dynamic lib in /usr/lib,	31	epause() {
47	otherwise we run into linking problems.	32	[[ -z ${EPAUSE_IGNORE} ]] && sleep ${1:-5}
48	See bug #4411 on http://bugs.gentoo.org/ for
49	more info. */
50	GROUP ( /lib/libxxx )
51	END_LDSCRIPT
52
53	dosed "s:libxxx:$1:" /usr/lib/$1
54
55	return 0
56	}	33	}
57		34
58	# Simple function to draw a line consisting of '=' the same length as $*	35	# @FUNCTION: ebeep
59	#	36	# @USAGE: [number of beeps]
60	# <azarah@gentoo.org> (11 Nov 2002)	37	# @DESCRIPTION:
61	#	38	# Issue the specified number of beeps (default of 5 beeps). Useful when
62	draw_line() {	39	# printing a message the user should probably be reading and often used in
		40	# conjunction with the epause function. If the EBEEP_IGNORE env var is set,
		41	# don't beep at all. Defined in EAPIs 0 1 and 2.
		42	ebeep() {
63	local i=0	43	local n
64	local str_length=""	44	if [[ -z ${EBEEP_IGNORE} ]] ; then
65		45	for ((n=1 ; n <= ${1:-5} ; n++)) ; do
66	# Handle calls that do not have args, or wc not being installed ...
67	if [ -z "$1" -o ! -x "$(which wc 2>/dev/null)" ]
68	then
69	echo "==============================================================="
70	return 0
71	fi
72
73	# Get the length of $*
74	str_length="$(echo -n "$*" \| wc -m)"
75
76	while [ "$i" -lt "${str_length}" ]
77	do
78	echo -n "="	46	echo -ne "\a"
79		47	sleep 0.1 &>/dev/null ; sleep 0,1 &>/dev/null
80	i=$((i + 1))	48	echo -ne "\a"
		49	sleep 1
81	done	50	done
		51	fi
		52	}
82		53
83	echo	54	else
84		55
		56	ebeep() {
		57	ewarn "QA Notice: ebeep is not defined in EAPI=${EAPI}, please file a bug at http://bugs.gentoo.org"
		58	}
		59
		60	epause() {
		61	ewarn "QA Notice: epause is not defined in EAPI=${EAPI}, please file a bug at http://bugs.gentoo.org"
		62	}
		63
		64	fi
		65
		66	# @FUNCTION: eqawarn
		67	# @USAGE: [message]
		68	# @DESCRIPTION:
		69	# Proxy to ewarn for package managers that don't provide eqawarn and use the PM
		70	# implementation if available. Reuses PORTAGE_ELOG_CLASSES as set by the dev
		71	# profile.
		72	if ! declare -F eqawarn >/dev/null ; then
		73	eqawarn() {
		74	has qa ${PORTAGE_ELOG_CLASSES} && ewarn "$@"
		75	}
		76	fi
		77
		78	# @FUNCTION: ecvs_clean
		79	# @USAGE: [list of dirs]
		80	# @DESCRIPTION:
		81	# Remove CVS directories recursiveley. Useful when a source tarball contains
		82	# internal CVS directories. Defaults to $PWD.
		83	ecvs_clean() {
		84	[[ -z $* ]] && set -- .
		85	find "$@" -type d -name 'CVS' -prune -print0 \| xargs -0 rm -rf
		86	find "$@" -type f -name '.cvs*' -print0 \| xargs -0 rm -rf
		87	}
		88
		89	# @FUNCTION: esvn_clean
		90	# @USAGE: [list of dirs]
		91	# @DESCRIPTION:
		92	# Remove .svn directories recursiveley. Useful when a source tarball contains
		93	# internal Subversion directories. Defaults to $PWD.
		94	esvn_clean() {
		95	[[ -z $* ]] && set -- .
		96	find "$@" -type d -name '.svn' -prune -print0 \| xargs -0 rm -rf
		97	}
		98
		99	# @FUNCTION: eshopts_push
		100	# @USAGE: [options to `set` or `shopt`]
		101	# @DESCRIPTION:
		102	# Often times code will want to enable a shell option to change code behavior.
		103	# Since changing shell options can easily break other pieces of code (which
		104	# assume the default state), eshopts_push is used to (1) push the current shell
		105	# options onto a stack and (2) pass the specified arguments to set.
		106	#
		107	# If the first argument is '-s' or '-u', we assume you want to call `shopt`
		108	# rather than `set` as there are some options only available via that.
		109	#
		110	# A common example is to disable shell globbing so that special meaning/care
		111	# may be used with variables/arguments to custom functions. That would be:
		112	# @CODE
		113	# eshopts_push -o noglob
		114	# for x in ${foo} ; do
		115	# if ...some check... ; then
		116	# eshopts_pop
85	return 0	117	# return 0
		118	# fi
		119	# done
		120	# eshopts_pop
		121	# @CODE
		122	eshopts_push() {
		123	# have to assume __ESHOPTS_SAVE__ isn't screwed with
		124	# as a `declare -a` here will reset its value
		125	local i=${#__ESHOPTS_SAVE__[@]}
		126	if [[ $1 == -[su] ]] ; then
		127	__ESHOPTS_SAVE__[$i]=$(shopt -p)
		128	[[ $# -eq 0 ]] && return 0
		129	shopt "$@" \|\| die "eshopts_push: bad options to shopt: $*"
		130	else
		131	__ESHOPTS_SAVE__[$i]=$-
		132	[[ $# -eq 0 ]] && return 0
		133	set "$@" \|\| die "eshopts_push: bad options to set: $*"
		134	fi
86	}	135	}
87		136
88	# Default directory where patches are located	137	# @FUNCTION: eshopts_pop
		138	# @USAGE:
		139	# @DESCRIPTION:
		140	# Restore the shell options to the state saved with the corresponding
		141	# eshopts_push call. See that function for more details.
		142	eshopts_pop() {
		143	[[ $# -ne 0 ]] && die "eshopts_pop takes no arguments"
		144	local i=$(( ${#__ESHOPTS_SAVE__[@]} - 1 ))
		145	[[ ${i} -eq -1 ]] && die "eshopts_{push,pop}: unbalanced pair"
		146	local s=${__ESHOPTS_SAVE__[$i]}
		147	unset __ESHOPTS_SAVE__[$i]
		148	if [[ ${s} == "shopt -"* ]] ; then
		149	eval "${s}" \|\| die "eshopts_pop: sanity: invalid shopt options: ${s}"
		150	else
		151	set +$- \|\| die "eshopts_pop: sanity: invalid shell settings: $-"
		152	set -${s} \|\| die "eshopts_pop: sanity: unable to restore saved shell settings: ${s}"
		153	fi
		154	}
		155
		156	# @VARIABLE: EPATCH_SOURCE
		157	# @DESCRIPTION:
		158	# Default directory to search for patches.
89	EPATCH_SOURCE="${WORKDIR}/patch"	159	EPATCH_SOURCE="${WORKDIR}/patch"
90	# Default extension for patches	160	# @VARIABLE: EPATCH_SUFFIX
		161	# @DESCRIPTION:
		162	# Default extension for patches (do not prefix the period yourself).
91	EPATCH_SUFFIX="patch.bz2"	163	EPATCH_SUFFIX="patch.bz2"
		164	# @VARIABLE: EPATCH_OPTS
		165	# @DESCRIPTION:
92	# Default options for patch	166	# Default options for patch:
93	EPATCH_OPTS=""	167	# @CODE
		168	# -g0 - keep RCS, ClearCase, Perforce and SCCS happy #24571
		169	# --no-backup-if-mismatch - do not leave .orig files behind
		170	# -E - automatically remove empty files
		171	# @CODE
		172	EPATCH_OPTS="-g0 -E --no-backup-if-mismatch"
		173	# @VARIABLE: EPATCH_EXCLUDE
		174	# @DESCRIPTION:
94	# List of patches not to apply. Not this is only file names,	175	# List of patches not to apply. Note this is only file names,
95	# and not the full path ..	176	# and not the full path. Globs accepted.
96	EPATCH_EXCLUDE=""	177	EPATCH_EXCLUDE=""
		178	# @VARIABLE: EPATCH_SINGLE_MSG
		179	# @DESCRIPTION:
97	# Change the printed message for a single patch.	180	# Change the printed message for a single patch.
98	EPATCH_SINGLE_MSG=""	181	EPATCH_SINGLE_MSG=""
		182	# @VARIABLE: EPATCH_MULTI_MSG
		183	# @DESCRIPTION:
		184	# Change the printed message for multiple patches.
		185	EPATCH_MULTI_MSG="Applying various patches (bugfixes/updates) ..."
		186	# @VARIABLE: EPATCH_FORCE
		187	# @DESCRIPTION:
		188	# Only require patches to match EPATCH_SUFFIX rather than the extended
		189	# arch naming style.
		190	EPATCH_FORCE="no"
99		191
100	# This function is for bulk patching, or in theory for just one	192	# @FUNCTION: epatch
101	# or two patches.	193	# @USAGE: [patches] [dirs of patches]
		194	# @DESCRIPTION:
		195	# epatch is designed to greatly simplify the application of patches. It can
		196	# process patch files directly, or directories of patches. The patches may be
		197	# compressed (bzip/gzip/etc...) or plain text. You generally need not specify
		198	# the -p option as epatch will automatically attempt -p0 to -p5 until things
		199	# apply successfully.
102	#	200	#
103	# It should work with .bz2, .gz, .zip and plain text patches.	201	# If you do not specify any options, then epatch will default to the directory
104	# Currently all patches should be the same format.	202	# specified by EPATCH_SOURCE.
105	#	203	#
106	# You do not have to specify '-p' option to patch, as it will	204	# When processing directories, epatch will apply all patches that match:
107	# try with -p0 to -p5 until it succeed, or fail at -p5.	205	# @CODE
108	#	206	# if ${EPATCH_FORCE} != "yes"
109	# Above EPATCH_* variables can be used to control various defaults,
110	# bug they should be left as is to ensure an ebuild can rely on
111	# them for.
112	#
113	# Patches are applied in current directory.
114	#
115	# Bulk Patches should preferibly have the form of:
116	#
117	# ??_${ARCH}_foo.${EPATCH_SUFFIX}	207	# ??_${ARCH}_foo.${EPATCH_SUFFIX}
		208	# else
		209	# *.${EPATCH_SUFFIX}
		210	# @CODE
		211	# The leading ?? are typically numbers used to force consistent patch ordering.
		212	# The arch field is used to apply patches only for the host architecture with
		213	# the special value of "all" means apply for everyone. Note that using values
		214	# other than "all" is highly discouraged -- you should apply patches all the
		215	# time and let architecture details be detected at configure/compile time.
118	#	216	#
119	# For example:	217	# If EPATCH_SUFFIX is empty, then no period before it is implied when searching
		218	# for patches to apply.
120	#	219	#
121	# 01_all_misc-fix.patch.bz2	220	# Refer to the other EPATCH_xxx variables for more customization of behavior.
122	# 02_sparc_another-fix.patch.bz2
123	#
124	# This ensures that there are a set order, and you can have ARCH
125	# specific patches.
126	#
127	# If you however give an argument to epatch(), it will treat it as a
128	# single patch that need to be applied if its a file. If on the other
129	# hand its a directory, it will set EPATCH_SOURCE to this.
130	#
131	# <azarah@gentoo.org> (10 Nov 2002)
132	#
133	epatch() {	221	epatch() {
134	local PIPE_CMD=""	222	_epatch_draw_line() {
135	local STDERR_TARGET="${T}/$$.out"	223	# create a line of same length as input string
136	local PATCH_TARGET="${T}/$$.patch"	224	[[ -z $1 ]] && set "$(printf "%65s" '')"
137	local PATCH_SUFFIX=""	225	echo "${1//?/=}"
		226	}
		227
		228	unset P4CONFIG P4PORT P4USER # keep perforce at bay #56402
		229
		230	# Let the rest of the code process one user arg at a time --
		231	# each arg may expand into multiple patches, and each arg may
		232	# need to start off with the default global EPATCH_xxx values
		233	if [[ $# -gt 1 ]] ; then
		234	local m
		235	for m in "$@" ; do
		236	epatch "${m}"
		237	done
		238	return 0
		239	fi
		240
138	local SINGLE_PATCH="no"	241	local SINGLE_PATCH="no"
139	local x=""	242	# no args means process ${EPATCH_SOURCE}
		243	[[ $# -eq 0 ]] && set -- "${EPATCH_SOURCE}"
140		244
141	if [ "$#" -gt 1 ]	245	if [[ -f $1 ]] ; then
142	then
143	eerror "Invalid arguments to epatch()"
144	die "Invalid arguments to epatch()"
145	fi
146
147	if [ -n "$1" -a -f "$1" ]
148	then
149	SINGLE_PATCH="yes"	246	SINGLE_PATCH="yes"
150		247	set -- "$1"
151	local EPATCH_SOURCE="$1"	248	# Use the suffix from the single patch (localize it); the code
		249	# below will find the suffix for us
152	local EPATCH_SUFFIX="${1##*\.}"	250	local EPATCH_SUFFIX=$1
153		251
154	elif [ -n "$1" -a -d "$1" ]	252	elif [[ -d $1 ]] ; then
155	then	253	# Some people like to make dirs of patches w/out suffixes (vim)
156	local EPATCH_SOURCE="$1/*.${EPATCH_SUFFIX}"	254	set -- "$1"/*${EPATCH_SUFFIX:+."${EPATCH_SUFFIX}"}
		255
		256	elif [[ -f ${EPATCH_SOURCE}/$1 ]] ; then
		257	# Re-use EPATCH_SOURCE as a search dir
		258	epatch "${EPATCH_SOURCE}/$1"
		259	return $?
		260
157	else	261	else
158	if [ ! -d ${EPATCH_SOURCE} ]	262	# sanity check ... if it isn't a dir or file, wtf man ?
		263	[[ $# -ne 0 ]] && EPATCH_SOURCE=$1
		264	echo
		265	eerror "Cannot find \$EPATCH_SOURCE! Value for \$EPATCH_SOURCE is:"
		266	eerror
		267	eerror " ${EPATCH_SOURCE}"
		268	eerror " ( ${EPATCH_SOURCE##*/} )"
		269	echo
		270	die "Cannot find \$EPATCH_SOURCE!"
		271	fi
		272
		273	local PIPE_CMD
		274	case ${EPATCH_SUFFIX##*\.} in
		275	xz) PIPE_CMD="xz -dc" ;;
		276	lzma) PIPE_CMD="lzma -dc" ;;
		277	bz2) PIPE_CMD="bzip2 -dc" ;;
		278	gz\|Z\|z) PIPE_CMD="gzip -dc" ;;
		279	ZIP\|zip) PIPE_CMD="unzip -p" ;;
		280	*) ;;
		281	esac
		282
		283	[[ ${SINGLE_PATCH} == "no" ]] && einfo "${EPATCH_MULTI_MSG}"
		284
		285	local x
		286	for x in "$@" ; do
		287	# If the patch dir given contains subdirs, or our EPATCH_SUFFIX
		288	# didn't match anything, ignore continue on
		289	[[ ! -f ${x} ]] && continue
		290
		291	local patchname=${x##*/}
		292
		293	# Apply single patches, or forced sets of patches, or
		294	# patches with ARCH dependant names.
		295	# ???_arch_foo.patch
		296	# Else, skip this input altogether
		297	local a=${patchname#*_} # strip the ???_
		298	a=${a%%_*} # strip the _foo.patch
		299	if ! [[ ${SINGLE_PATCH} == "yes" \|\| \
		300	${EPATCH_FORCE} == "yes" \|\| \
		301	${a} == all \|\| \
		302	${a} == ${ARCH} ]]
159	then	303	then
160	if [ -n "$1" -a "${EPATCH_SOURCE}" = "${WORKDIR}/patch" ]	304	continue
161	then	305	fi
162	EPATCH_SOURCE="$1"	306
		307	# Let people filter things dynamically
		308	if [[ -n ${EPATCH_EXCLUDE} ]] ; then
		309	# let people use globs in the exclude
		310	eshopts_push -o noglob
		311
		312	local ex
		313	for ex in ${EPATCH_EXCLUDE} ; do
		314	if [[ ${patchname} == ${ex} ]] ; then
		315	eshopts_pop
		316	continue 2
		317	fi
		318	done
		319
		320	eshopts_pop
		321	fi
		322
		323	if [[ ${SINGLE_PATCH} == "yes" ]] ; then
		324	if [[ -n ${EPATCH_SINGLE_MSG} ]] ; then
		325	einfo "${EPATCH_SINGLE_MSG}"
		326	else
		327	einfo "Applying ${patchname} ..."
163	fi	328	fi
		329	else
		330	einfo " ${patchname} ..."
		331	fi
164		332
		333	# most of the time, there will only be one run per unique name,
		334	# but if there are more, make sure we get unique log filenames
		335	local STDERR_TARGET="${T}/${patchname}.out"
		336	if [[ -e ${STDERR_TARGET} ]] ; then
		337	STDERR_TARGET="${T}/${patchname}-$$.out"
		338	fi
		339
		340	printf "*** %s ***\n\n" "${patchname}" > "${STDERR_TARGET}"
		341
		342	# Decompress the patch if need be
		343	local count=0
		344	local PATCH_TARGET
		345	if [[ -n ${PIPE_CMD} ]] ; then
		346	PATCH_TARGET="${T}/$$.patch"
		347	echo "PIPE_COMMAND: ${PIPE_CMD} ${x} > ${PATCH_TARGET}" >> "${STDERR_TARGET}"
		348
		349	if ! (${PIPE_CMD} "${x}" > "${PATCH_TARGET}") >> "${STDERR_TARGET}" 2>&1 ; then
		350	echo
		351	eerror "Could not extract patch!"
		352	#die "Could not extract patch!"
		353	count=5
		354	break
		355	fi
		356	else
		357	PATCH_TARGET=${x}
		358	fi
		359
		360	# Check for absolute paths in patches. If sandbox is disabled,
		361	# people could (accidently) patch files in the root filesystem.
		362	# Or trigger other unpleasantries #237667. So disallow -p0 on
		363	# such patches.
		364	local abs_paths=$(egrep -n '^[-+]{3} /' "${PATCH_TARGET}" \| awk '$2 != "/dev/null" { print }')
		365	if [[ -n ${abs_paths} ]] ; then
		366	count=1
		367	printf "NOTE: skipping -p0 due to absolute paths in patch:\n%s\n" "${abs_paths}" >> "${STDERR_TARGET}"
		368	fi
		369	# Similar reason, but with relative paths.
		370	local rel_paths=$(egrep -n '^[-+]{3} [^ ]*[.][.]/' "${PATCH_TARGET}")
		371	if [[ -n ${rel_paths} ]] ; then
		372	eqawarn "QA Notice: Your patch uses relative paths '../'."
		373	eqawarn " In the future this will cause a failure."
		374	eqawarn "${rel_paths}"
		375	fi
		376
		377	# Dynamically detect the correct -p# ... i'm lazy, so shoot me :/
		378	while [[ ${count} -lt 5 ]] ; do
		379	# Generate some useful debug info ...
		380	(
		381	_epatch_draw_line "*** ${patchname} ***"
165	echo	382	echo
166	eerror "Cannot find \$EPATCH_SOURCE! Value for \$EPATCH_SOURCE is:"	383	echo "PATCH COMMAND: patch -p${count} ${EPATCH_OPTS} < '${PATCH_TARGET}'"
		384	echo
		385	_epatch_draw_line "*** ${patchname} ***"
		386	patch -p${count} ${EPATCH_OPTS} --dry-run -f < "${PATCH_TARGET}" 2>&1
		387	ret=$?
		388	echo
		389	echo "patch program exited with status ${ret}"
		390	exit ${ret}
		391	) >> "${STDERR_TARGET}"
		392
		393	if [ $? -eq 0 ] ; then
		394	(
		395	_epatch_draw_line "*** ${patchname} ***"
		396	echo
		397	echo "ACTUALLY APPLYING ${patchname} ..."
		398	echo
		399	_epatch_draw_line "*** ${patchname} ***"
		400	patch -p${count} ${EPATCH_OPTS} < "${PATCH_TARGET}" 2>&1
		401	ret=$?
		402	echo
		403	echo "patch program exited with status ${ret}"
		404	exit ${ret}
		405	) >> "${STDERR_TARGET}"
		406
		407	if [ $? -ne 0 ] ; then
		408	echo
		409	eerror "A dry-run of patch command succeeded, but actually"
		410	eerror "applying the patch failed!"
		411	#die "Real world sux compared to the dreamworld!"
		412	count=5
		413	fi
		414	break
		415	fi
		416
		417	: $(( count++ ))
		418	done
		419
		420	# if we had to decompress the patch, delete the temp one
		421	if [[ -n ${PIPE_CMD} ]] ; then
		422	rm -f "${PATCH_TARGET}"
		423	fi
		424
		425	if [[ ${count} -ge 5 ]] ; then
		426	echo
		427	eerror "Failed Patch: ${patchname} !"
		428	eerror " ( ${PATCH_TARGET} )"
167	eerror	429	eerror
168	eerror " ${EPATCH_SOURCE}"	430	eerror "Include in your bugreport the contents of:"
		431	eerror
		432	eerror " ${STDERR_TARGET}"
169	echo	433	echo
170	die "Cannot find \$EPATCH_SOURCE!"	434	die "Failed Patch: ${patchname}!"
171	fi
172
173	local EPATCH_SOURCE="${EPATCH_SOURCE}/*.${EPATCH_SUFFIX}"
174	fi	435	fi
175		436
176	case ${EPATCH_SUFFIX##*\.} in	437	# if everything worked, delete the patch log
177	bz2)	438	rm -f "${STDERR_TARGET}"
178	PIPE_CMD="bzip2 -dc"	439	eend 0
		440	done
		441
		442	[[ ${SINGLE_PATCH} == "no" ]] && einfo "Done with patching"
		443	: # everything worked
		444	}
		445
		446	# @FUNCTION: epatch_user
		447	# @USAGE:
		448	# @DESCRIPTION:
		449	# Applies user-provided patches to the source tree. The patches are
		450	# taken from /etc/portage/patches/<CATEGORY>/<PF\|P\|PN>/, where the first
		451	# of these three directories to exist will be the one to use, ignoring
		452	# any more general directories which might exist as well.
		453	#
		454	# User patches are intended for quick testing of patches without ebuild
		455	# modifications, as well as for permanent customizations a user might
		456	# desire. Obviously, there can be no official support for arbitrarily
		457	# patched ebuilds. So whenever a build log in a bug report mentions that
		458	# user patches were applied, the user should be asked to reproduce the
		459	# problem without these.
		460	#
		461	# Not all ebuilds do call this function, so placing patches in the
		462	# stated directory might or might not work, depending on the package and
		463	# the eclasses it inherits and uses. It is safe to call the function
		464	# repeatedly, so it is always possible to add a call at the ebuild
		465	# level. The first call is the time when the patches will be
		466	# applied.
		467	#
		468	# Ideally, this function should be called after gentoo-specific patches
		469	# have been applied, so that their code can be modified as well, but
		470	# before calls to e.g. eautoreconf, as the user patches might affect
		471	# autotool input files as well.
		472	epatch_user() {
		473	[[ $# -ne 0 ]] && die "epatch_user takes no options"
		474
		475	# Allow multiple calls to this function; ignore all but the first
		476	local applied="${T}/epatch_user.applied"
		477	[[ -e ${applied} ]] && return 2
		478
		479	# don't clobber any EPATCH vars that the parent might want
		480	local EPATCH_SOURCE check base=${PORTAGE_CONFIGROOT%/}/etc/portage/patches
		481	for check in {${CATEGORY}/${PF},${CATEGORY}/${P},${CATEGORY}/${PN}}; do
		482	EPATCH_SOURCE=${base}/${CTARGET}/${check}
		483	[[ -r ${EPATCH_SOURCE} ]] \|\| EPATCH_SOURCE=${base}/${CHOST}/${check}
		484	[[ -r ${EPATCH_SOURCE} ]] \|\| EPATCH_SOURCE=${base}/${check}
		485	if [[ -d ${EPATCH_SOURCE} ]] ; then
		486	EPATCH_SOURCE=${EPATCH_SOURCE} \
179	PATCH_SUFFIX="bz2"	487	EPATCH_SUFFIX="patch" \
		488	EPATCH_FORCE="yes" \
		489	EPATCH_MULTI_MSG="Applying user patches from ${EPATCH_SOURCE} ..." \
		490	epatch
		491	echo "${EPATCH_SOURCE}" > "${applied}"
		492	return 0
		493	fi
		494	done
		495	echo "none" > "${applied}"
		496	return 1
		497	}
		498
		499	# @FUNCTION: emktemp
		500	# @USAGE: [temp dir]
		501	# @DESCRIPTION:
		502	# Cheap replacement for when debianutils (and thus mktemp)
		503	# does not exist on the users system.
		504	emktemp() {
		505	local exe="touch"
		506	[[ $1 == -d ]] && exe="mkdir" && shift
		507	local topdir=$1
		508
		509	if [[ -z ${topdir} ]] ; then
		510	[[ -z ${T} ]] \
		511	&& topdir="/tmp" \
		512	\|\| topdir=${T}
		513	fi
		514
		515	if ! type -P mktemp > /dev/null ; then
		516	# system lacks `mktemp` so we have to fake it
		517	local tmp=/
		518	while [[ -e ${tmp} ]] ; do
		519	tmp=${topdir}/tmp.${RANDOM}.${RANDOM}.${RANDOM}
		520	done
		521	${exe} "${tmp}" \|\| ${exe} -p "${tmp}"
		522	echo "${tmp}"
		523	else
		524	# the args here will give slightly wierd names on BSD,
		525	# but should produce a usable file on all userlands
		526	if [[ ${exe} == "touch" ]] ; then
		527	TMPDIR="${topdir}" mktemp -t tmp.XXXXXXXXXX
		528	else
		529	TMPDIR="${topdir}" mktemp -dt tmp.XXXXXXXXXX
		530	fi
		531	fi
		532	}
		533
		534	# @FUNCTION: egetent
		535	# @USAGE: <database> <key>
		536	# @MAINTAINER:
		537	# base-system@gentoo.org (Linux)
		538	# Joe Jezak <josejx@gmail.com> (OS X)
		539	# usata@gentoo.org (OS X)
		540	# Aaron Walker <ka0ttic@gentoo.org> (FreeBSD)
		541	# @DESCRIPTION:
		542	# Small wrapper for getent (Linux),
		543	# nidump (< Mac OS X 10.5), dscl (Mac OS X 10.5),
		544	# and pw (FreeBSD) used in enewuser()/enewgroup()
		545	egetent() {
		546	case ${CHOST} in
		547	*-darwin[678])
		548	case "$2" in
		549	[!0-9]) # Non numeric
		550	nidump $1 . \| awk -F":" "{ if (\$1 ~ /^$2\$/) {print \$0;exit;} }"
180	;;	551	;;
181	gz\|Z\|z)	552	*) # Numeric
182	PIPE_CMD="gzip -dc"	553	nidump $1 . \| awk -F":" "{ if (\$3 == $2) {print \$0;exit;} }"
183	PATCH_SUFFIX="gz"
184	;;	554	;;
185	ZIP\|zip)	555	esac
186	PIPE_CMD="unzip -p"	556	;;
187	PATCH_SUFFIX="zip"	557	-darwin)
		558	local mytype=$1
		559	[[ "passwd" == $mytype ]] && mytype="Users"
		560	[[ "group" == $mytype ]] && mytype="Groups"
		561	case "$2" in
		562	[!0-9]) # Non numeric
		563	dscl . -read /$mytype/$2 2>/dev/null \|grep RecordName
188	;;	564	;;
189	*)	565	*) # Numeric
190	PIPE_CMD="cat"	566	local mykey="UniqueID"
191	PATCH_SUFFIX="patch"	567	[[ $mytype == "Groups" ]] && mykey="PrimaryGroupID"
		568	dscl . -search /$mytype $mykey $2 2>/dev/null
192	;;	569	;;
		570	esac
		571	;;
		572	-freebsd\|-dragonfly)
		573	local opts action="user"
		574	[[ $1 == "passwd" ]] \|\| action="group"
		575
		576	# lookup by uid/gid
		577	if [[ $2 == [[:digit:]]* ]] ; then
		578	[[ ${action} == "user" ]] && opts="-u" \|\| opts="-g"
		579	fi
		580
		581	pw show ${action} ${opts} "$2" -q
		582	;;
		583	-netbsd\|-openbsd)
		584	grep "$2:\*:" /etc/$1
		585	;;
		586	*)
		587	type -p nscd >& /dev/null && nscd -i "$1"
		588	getent "$1" "$2"
		589	;;
193	esac	590	esac
194
195	if [ "${SINGLE_PATCH}" = "no" ]
196	then
197	einfo "Applying various patches (bugfixes/updates)..."
198	fi
199	for x in ${EPATCH_SOURCE}
200	do
201	# New ARCH dependant patch naming scheme...
202	#
203	# ???_arch_foo.patch
204	#
205	if [ -f ${x} ] && \
206	[ "${SINGLE_PATCH}" = "yes" -o "${x/_all_}" != "${x}" -o "`eval echo \$\{x/_${ARCH}_\}`" != "${x}" ]
207	then
208	local count=0
209	local popts="${EPATCH_OPTS}"
210
211	if [ -n "${EPATCH_EXCLUDE}" ]
212	then
213	if [ "`eval echo \$\{EPATCH_EXCLUDE/${x##*/}\}`" != "${EPATCH_EXCLUDE}" ]
214	then
215	continue
216	fi
217	fi
218
219	if [ "${SINGLE_PATCH}" = "yes" ]
220	then
221	if [ -n "${EPATCH_SINGLE_MSG}" ]
222	then
223	einfo "${EPATCH_SINGLE_MSG}"
224	else
225	einfo "Applying ${x##*/}..."
226	fi
227	else
228	einfo " ${x##*/}..."
229	fi
230
231	echo "***** ${x##/} ***" > ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##/}
232	echo >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}
233
234	# Allow for prefix to differ ... im lazy, so shoot me :/
235	while [ "${count}" -lt 5 ]
236	do
237	# Generate some useful debug info ...
238	draw_line "***** ${x##/} ***" >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##/}
239	echo >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}
240
241	if [ "${PATCH_SUFFIX}" != "patch" ]
242	then
243	echo -n "PIPE_COMMAND: " >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}
244	echo "${PIPE_CMD} ${x} > ${PATCH_TARGET}" >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}
245	else
246	PATCH_TARGET="${x}"
247	fi
248
249	echo -n "PATCH COMMAND: " >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}
250	echo "patch ${popts} -p${count} < ${PATCH_TARGET}" >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}
251
252	echo >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}
253	draw_line "***** ${x##/} ***" >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##/}
254
255	if [ "${PATCH_SUFFIX}" != "patch" ]
256	then
257	if ! (${PIPE_CMD} ${x} > ${PATCH_TARGET}) >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/} 2>&1
258	then
259	echo
260	eerror "Could not extract patch!"
261	#die "Could not extract patch!"
262	count=5
263	break
264	fi
265	fi
266
267	if (cat ${PATCH_TARGET} \| patch ${popts} --dry-run -f -p${count}) >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/} 2>&1
268	then
269	draw_line "***** ${x##/} ***" > ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##/}.real
270	echo >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}.real
271	echo "ACTUALLY APPLYING ${x##/}..." >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##/}.real
272	echo >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}.real
273	draw_line "***** ${x##/} ***" >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##/}.real
274
275	cat ${PATCH_TARGET} \| patch ${popts} -p${count} >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}.real 2>&1
276
277	if [ "$?" -ne 0 ]
278	then
279	cat ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##/}.real >> ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##/}
280	echo
281	eerror "A dry-run of patch command succeeded, but actually"
282	eerror "applying the patch failed!"
283	#die "Real world sux compared to the dreamworld!"
284	count=5
285	fi
286
287	rm -f ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}.real
288
289	break
290	fi
291
292	count=$((count + 1))
293	done
294
295	if [ "${PATCH_SUFFIX}" != "patch" ]
296	then
297	rm -f ${PATCH_TARGET}
298	fi
299
300	if [ "${count}" -eq 5 ]
301	then
302	echo
303	eerror "Failed Patch: ${x##*/}!"
304	eerror
305	eerror "Include in your bugreport the contents of:"
306	eerror
307	eerror " ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}"
308	echo
309	die "Failed Patch: ${x##*/}!"
310	fi
311
312	rm -f ${STDERR_TARGET%/}/${x##/}-${STDERR_TARGET##*/}
313
314	eend 0
315	fi
316	done
317	if [ "${SINGLE_PATCH}" = "no" ]
318	then
319	einfo "Done with patching"
320	fi
321	}	591	}
322		592
323	# This function check how many cpu's are present, and then set	593	# @FUNCTION: enewuser
324	# -j in MAKEOPTS accordingly.	594	# @USAGE: <user> [uid] [shell] [homedir] [groups] [params]
325	#	595	# @DESCRIPTION:
326	# Thanks to nall <nall@gentoo.org> for this.	596	# Same as enewgroup, you are not required to understand how to properly add
327	#	597	# a user to the system. The only required parameter is the username.
328	get_number_of_jobs() {	598	# Default uid is (pass -1 for this) next available, default shell is
329	local jobs=0	599	# /bin/false, default homedir is /dev/null, there are no default groups,
330		600	# and default params sets the comment as 'added by portage for ${PN}'.
331	if [ ! -r /proc/cpuinfo ]
332	then
333	return 1
334	fi
335
336	# This bit is from H?kan Wessberg <nacka-gentoo@refug.org>, bug #13565.
337	if [ "`egrep "^[[:space:]]*MAKEOPTS=" /etc/make.conf \| wc -l`" -gt 0 ]
338	then
339	ADMINOPTS="`egrep "^[[:space:]]*MAKEOPTS=" /etc/make.conf \| cut -d= -f2 \| sed 's/\"//g'`"
340	ADMINPARAM="`echo ${ADMINOPTS} \| gawk '{match($0, /-j [0-9]/, opt); print opt[0]}'`"
341	ADMINPARAM="${ADMINPARAM/-j}"
342	fi
343
344	export MAKEOPTS="`echo ${MAKEOPTS} \| sed -e 's:-j [0-9]::g'`"
345
346	if [ "${ARCH}" = "x86" -o "${ARCH}" = "hppa" -o \
347	"${ARCH}" = "arm" -o "${ARCH}" = "mips" ]
348	then
349	# these archs will always have "[Pp]rocessor"
350	jobs="$((`grep -c ^[Pp]rocessor /proc/cpuinfo` * 2))"
351
352	elif [ "${ARCH}" = "sparc" -o "${ARCH}" = "sparc64" ]
353	then
354	# sparc always has "ncpus active"
355	jobs="$((`grep "^ncpus active" /proc/cpuinfo \| sed -e "s/^.: //"` 2))"
356
357	elif [ "${ARCH}" = "alpha" ]
358	then
359	# alpha has "cpus active", but only when compiled with SMP
360	if [ "`grep -c "^cpus active" /proc/cpuinfo`" -eq 1 ]
361	then
362	jobs="$((`grep "^cpus active" /proc/cpuinfo \| sed -e "s/^.: //"` 2))"
363	else
364	jobs=2
365	fi
366
367	elif [ "${ARCH}" = "ppc" ]
368	then
369	# ppc has "processor", but only when compiled with SMP
370	if [ "`grep -c "^processor" /proc/cpuinfo`" -eq 1 ]
371	then
372	jobs="$((`grep -c ^processor /proc/cpuinfo` * 2))"
373	else
374	jobs=2
375	fi
376	else
377	jobs="$((`grep -c ^cpu /proc/cpuinfo` * 2))"
378	die "Unknown ARCH -- ${ARCH}!"
379	fi
380
381	# Make sure the number is valid ...
382	if [ "${jobs}" -lt 1 ]
383	then
384	jobs=1
385	fi
386
387	if [ -n "${ADMINPARAM}" ]
388	then
389	if [ "${jobs}" -gt "${ADMINPARAM}" ]
390	then
391	einfo "Setting make jobs to \"-j${ADMINPARAM}\" to ensure successful merge..."
392	export MAKEOPTS="${MAKEOPTS} -j${ADMINPARAM}"
393	else
394	einfo "Setting make jobs to \"-j${jobs}\" to ensure successful merge..."
395	export MAKEOPTS="${MAKEOPTS} -j${jobs}"
396	fi
397	fi
398	}
399
400	# Simplify/standardize adding users to the system
401	# vapier@gentoo.org
402	#
403	# enewuser(username, uid, shell, homedir, groups, extra options)
404	#
405	# Default values if you do not specify any:
406	# username: REQUIRED !
407	# uid: next available (see useradd(8))
408	# shell: /bin/false
409	# homedir: /dev/null
410	# groups: none
411	# extra: comment of 'added by portage for ${PN}'
412	enewuser() {	601	enewuser() {
		602	case ${EBUILD_PHASE} in
		603	unpack\|compile\|test\|install)
		604	eerror "'enewuser()' called from '${EBUILD_PHASE}()' which is not a pkg_* function."
		605	eerror "Package fails at QA and at life. Please file a bug."
		606	die "Bad package! enewuser is only for use in pkg_* functions!"
		607	esac
		608
413	# get the username	609	# get the username
414	local euser="$1"; shift	610	local euser=$1; shift
415	if [ -z "${euser}" ] ; then	611	if [[ -z ${euser} ]] ; then
416	eerror "No username specified !"	612	eerror "No username specified !"
417	die "Cannot call enewuser without a username"	613	die "Cannot call enewuser without a username"
418	fi	614	fi
		615
		616	# lets see if the username already exists
		617	if [[ -n $(egetent passwd "${euser}") ]] ; then
		618	return 0
		619	fi
419	einfo "Adding user '${euser}' to your system ..."	620	einfo "Adding user '${euser}' to your system ..."
420		621
421	# setup a file for testing usernames/groups
422	local tmpfile="`mktemp -p ${T}`"
423	touch ${tmpfile}
424	chown ${euser} ${tmpfile} >& /dev/null
425	local realuser="`ls -l ${tmpfile} \| awk '{print $3}'`"
426
427	# see if user already exists
428	if [ "${euser}" == "${realuser}" ] ; then
429	einfo "${euser} already exists on your system :)"
430	return 0
431	fi
432
433	# options to pass to useradd	622	# options to pass to useradd
434	local opts=""	623	local opts=
435		624
436	# handle uid	625	# handle uid
437	local euid="$1"; shift	626	local euid=$1; shift
438	if [ ! -z "${euid}" ] ; then	627	if [[ -n ${euid} && ${euid} != -1 ]] ; then
439	if [ ${euid} -gt 0 ] ; then	628	if [[ ${euid} -gt 0 ]] ; then
440	opts="${opts} -u ${euid}"	629	if [[ -n $(egetent passwd ${euid}) ]] ; then
		630	euid="next"
		631	fi
441	else	632	else
442	eerror "Userid given but is not greater than 0 !"	633	eerror "Userid given but is not greater than 0 !"
443	die "${euid} is not a valid UID"	634	die "${euid} is not a valid UID"
444	fi	635	fi
445	else	636	else
446	euid="next available"	637	euid="next"
447	fi	638	fi
		639	if [[ ${euid} == "next" ]] ; then
		640	for ((euid = 101; euid <= 999; euid++)); do
		641	[[ -z $(egetent passwd ${euid}) ]] && break
		642	done
		643	fi
		644	opts="${opts} -u ${euid}"
448	einfo " - Userid: ${euid}"	645	einfo " - Userid: ${euid}"
449		646
450	# handle shell	647	# handle shell
451	local eshell="$1"; shift	648	local eshell=$1; shift
452	if [ ! -z "${eshell}" ] ; then	649	if [[ ! -z ${eshell} ]] && [[ ${eshell} != "-1" ]] ; then
453	if [ ! -e ${eshell} ] ; then	650	if [[ ! -e ${ROOT}${eshell} ]] ; then
454	eerror "A shell was specified but it does not exist !"	651	eerror "A shell was specified but it does not exist !"
455	die "${eshell} does not exist"	652	die "${eshell} does not exist in ${ROOT}"
		653	fi
		654	if [[ ${eshell} == /false \|\| ${eshell} == /nologin ]] ; then
		655	eerror "Do not specify ${eshell} yourself, use -1"
		656	die "Pass '-1' as the shell parameter"
456	fi	657	fi
457	else	658	else
458	eshell=/bin/false	659	for shell in /sbin/nologin /usr/sbin/nologin /bin/false /usr/bin/false /dev/null ; do
		660	[[ -x ${ROOT}${shell} ]] && break
		661	done
		662
		663	if [[ ${shell} == "/dev/null" ]] ; then
		664	eerror "Unable to identify the shell to use, proceeding with userland default."
		665	case ${USERLAND} in
		666	GNU) shell="/bin/false" ;;
		667	BSD) shell="/sbin/nologin" ;;
		668	Darwin) shell="/usr/sbin/nologin" ;;
		669	*) die "Unable to identify the default shell for userland ${USERLAND}"
		670	esac
		671	fi
		672
		673	eshell=${shell}
459	fi	674	fi
460	einfo " - Shell: ${eshell}"	675	einfo " - Shell: ${eshell}"
461	opts="${opts} -s ${eshell}"	676	opts="${opts} -s ${eshell}"
462		677
463	# handle homedir	678	# handle homedir
464	local ehome="$1"; shift	679	local ehome=$1; shift
465	if [ -z "${ehome}" ] ; then	680	if [[ -z ${ehome} ]] \|\| [[ ${ehome} == "-1" ]] ; then
466	ehome=/dev/null	681	ehome="/dev/null"
467	fi	682	fi
468	einfo " - Home: ${ehome}"	683	einfo " - Home: ${ehome}"
469	opts="${opts} -d ${ehome}"	684	opts="${opts} -d ${ehome}"
470		685
471	# handle groups	686	# handle groups
472	local egroups="$1"; shift	687	local egroups=$1; shift
473	if [ ! -z "${egroups}" ] ; then	688	if [[ ! -z ${egroups} ]] ; then
474	local realgroup
475	local oldifs="${IFS}"	689	local oldifs=${IFS}
		690	local defgroup="" exgroups=""
		691
476	export IFS=","	692	export IFS=","
477	for g in ${egroups} ; do	693	for g in ${egroups} ; do
478	chgrp ${g} ${tmpfile} >& /dev/null	694	export IFS=${oldifs}
479	realgroup="`ls -l ${tmpfile} \| awk '{print $4}'`"	695	if [[ -z $(egetent group "${g}") ]] ; then
480	if [ "${g}" != "${realgroup}" ] ; then
481	eerror "You must add ${g} to the system first"	696	eerror "You must add group ${g} to the system first"
482	die "${g} is not a valid GID"	697	die "${g} is not a valid GID"
483	fi	698	fi
		699	if [[ -z ${defgroup} ]] ; then
		700	defgroup=${g}
		701	else
		702	exgroups="${exgroups},${g}"
		703	fi
		704	export IFS=","
484	done	705	done
485	export IFS="${oldifs}"	706	export IFS=${oldifs}
		707
486	opts="${opts} -g ${egroups}"	708	opts="${opts} -g ${defgroup}"
		709	if [[ ! -z ${exgroups} ]] ; then
		710	opts="${opts} -G ${exgroups:1}"
		711	fi
487	else	712	else
488	egroups="(none)"	713	egroups="(none)"
489	fi	714	fi
490	einfo " - Groups: ${egroups}"	715	einfo " - Groups: ${egroups}"
491		716
492	# handle extra and add the user	717	# handle extra and add the user
493	local eextra="$@"	718	local oldsandbox=${SANDBOX_ON}
494	local oldsandbox="${oldsandbox}"
495	export SANDBOX_ON="0"	719	export SANDBOX_ON="0"
496	if [ -z "${eextra}" ] ; then	720	case ${CHOST} in
497	useradd ${opts} ${euser} \	721	-darwin)
		722	### Make the user
		723	if [[ -z $@ ]] ; then
		724	dscl . create /users/${euser} uid ${euid}
		725	dscl . create /users/${euser} shell ${eshell}
		726	dscl . create /users/${euser} home ${ehome}
		727	dscl . create /users/${euser} realname "added by portage for ${PN}"
		728	### Add the user to the groups specified
		729	local oldifs=${IFS}
		730	export IFS=","
		731	for g in ${egroups} ; do
		732	dscl . merge /groups/${g} users ${euser}
		733	done
		734	export IFS=${oldifs}
		735	else
		736	einfo "Extra options are not supported on Darwin yet"
		737	einfo "Please report the ebuild along with the info below"
		738	einfo "eextra: $@"
		739	die "Required function missing"
		740	fi
		741	;;
		742	-freebsd\|-dragonfly)
		743	if [[ -z $@ ]] ; then
		744	pw useradd ${euser} ${opts} \
498	-c "added by portage for ${PN}" \	745	-c "added by portage for ${PN}" \
		746	die "enewuser failed"
		747	else
		748	einfo " - Extra: $@"
		749	pw useradd ${euser} ${opts} \
		750	"$@" \|\| die "enewuser failed"
		751	fi
		752	;;
		753
		754	-netbsd)
		755	if [[ -z $@ ]] ; then
		756	useradd ${opts} ${euser} \|\| die "enewuser failed"
		757	else
		758	einfo " - Extra: $@"
		759	useradd ${opts} ${euser} "$@" \|\| die "enewuser failed"
		760	fi
		761	;;
		762
		763	-openbsd)
		764	if [[ -z $@ ]] ; then
		765	useradd -u ${euid} -s ${eshell} \
		766	-d ${ehome} -c "Added by portage for ${PN}" \
		767	-g ${egroups} ${euser} \|\| die "enewuser failed"
		768	else
		769	einfo " - Extra: $@"
		770	useradd -u ${euid} -s ${eshell} \
		771	-d ${ehome} -c "Added by portage for ${PN}" \
		772	-g ${egroups} ${euser} "$@" \|\| die "enewuser failed"
		773	fi
		774	;;
		775
		776	*)
		777	if [[ -z $@ ]] ; then
		778	useradd -r ${opts} \
		779	-c "added by portage for ${PN}" \
		780	${euser} \
499	\|\| die "enewuser failed"	781	\|\| die "enewuser failed"
500	else	782	else
501	einfo " - Extra: ${eextra}"	783	einfo " - Extra: $@"
502	useradd ${opts} ${euser} ${eextra} \	784	useradd -r ${opts} "$@" \
		785	${euser} \
503	\|\| die "enewuser failed"	786	\|\| die "enewuser failed"
504	fi	787	fi
		788	;;
		789	esac
		790
		791	if [[ ! -e ${ROOT}/${ehome} ]] ; then
		792	einfo " - Creating ${ehome} in ${ROOT}"
		793	mkdir -p "${ROOT}/${ehome}"
		794	chown ${euser} "${ROOT}/${ehome}"
		795	chmod 755 "${ROOT}/${ehome}"
		796	fi
		797
505	export SANDBOX_ON="${oldsandbox}"	798	export SANDBOX_ON=${oldsandbox}
506
507	if [ ! -e ${ehome} ] && [ ! -e ${D}/${ehome} ] ; then
508	einfo " - Creating ${ehome} in ${D}"
509	dodir ${ehome}
510	fperms ${euser} ${ehome}
511	fi
512	}	799	}
513		800
514	# Simplify/standardize adding groups to the system	801	# @FUNCTION: enewgroup
515	# vapier@gentoo.org	802	# @USAGE: <group> [gid]
516	#	803	# @DESCRIPTION:
517	# enewgroup(group, gid)	804	# This function does not require you to understand how to properly add a
518	#	805	# group to the system. Just give it a group name to add and enewgroup will
519	# Default values if you do not specify any:	806	# do the rest. You may specify the gid for the group or allow the group to
520	# groupname: REQUIRED !	807	# allocate the next available one.
521	# gid: next available (see groupadd(8))
522	# extra: none
523	enewgroup() {	808	enewgroup() {
		809	case ${EBUILD_PHASE} in
		810	unpack\|compile\|test\|install)
		811	eerror "'enewgroup()' called from '${EBUILD_PHASE}()' which is not a pkg_* function."
		812	eerror "Package fails at QA and at life. Please file a bug."
		813	die "Bad package! enewgroup is only for use in pkg_* functions!"
		814	esac
		815
524	# get the group	816	# get the group
525	local egroup="$1"; shift	817	local egroup="$1"; shift
526	if [ -z "${egroup}" ] ; then	818	if [ -z "${egroup}" ]
		819	then
527	eerror "No group specified !"	820	eerror "No group specified !"
528	die "Cannot call enewgroup without a group"	821	die "Cannot call enewgroup without a group"
529	fi	822	fi
		823
		824	# see if group already exists
		825	if [[ -n $(egetent group "${egroup}") ]]; then
		826	return 0
		827	fi
530	einfo "Adding group '${egroup}' to your system ..."	828	einfo "Adding group '${egroup}' to your system ..."
531		829
532	# setup a file for testing groupname
533	local tmpfile="`mktemp -p ${T}`"
534	touch ${tmpfile}
535	chgrp ${egroup} ${tmpfile} >& /dev/null
536	local realgroup="`ls -l ${tmpfile} \| awk '{print $4}'`"
537
538	# see if group already exists
539	if [ "${egroup}" == "${realgroup}" ] ; then
540	einfo "${egroup} already exists on your system :)"
541	return 0
542	fi
543
544	# options to pass to useradd	830	# options to pass to useradd
545	local opts=""	831	local opts=
546		832
547	# handle gid	833	# handle gid
548	local egid="$1"; shift	834	local egid="$1"; shift
549	if [ ! -z "${egid}" ] ; then	835	if [ ! -z "${egid}" ]
		836	then
550	if [ ${egid} -gt 0 ] ; then	837	if [ "${egid}" -gt 0 ]
		838	then
		839	if [ -z "`egetent group ${egid}`" ]
		840	then
		841	if [[ "${CHOST}" == -darwin ]]; then
		842	opts="${opts} ${egid}"
		843	else
551	opts="${opts} -g ${egid}"	844	opts="${opts} -g ${egid}"
		845	fi
		846	else
		847	egid="next available; requested gid taken"
		848	fi
552	else	849	else
553	eerror "Groupid given but is not greater than 0 !"	850	eerror "Groupid given but is not greater than 0 !"
554	die "${egid} is not a valid GID"	851	die "${egid} is not a valid GID"
555	fi	852	fi
556	else	853	else
…		…
561	# handle extra	858	# handle extra
562	local eextra="$@"	859	local eextra="$@"
563	opts="${opts} ${eextra}"	860	opts="${opts} ${eextra}"
564		861
565	# add the group	862	# add the group
566	local oldsandbox="${oldsandbox}"	863	local oldsandbox="${SANDBOX_ON}"
567	export SANDBOX_ON="0"	864	export SANDBOX_ON="0"
		865	case ${CHOST} in
		866	-darwin)
		867	if [ ! -z "${eextra}" ];
		868	then
		869	einfo "Extra options are not supported on Darwin/OS X yet"
		870	einfo "Please report the ebuild along with the info below"
		871	einfo "eextra: ${eextra}"
		872	die "Required function missing"
		873	fi
		874
		875	# If we need the next available
		876	case ${egid} in
		877	[!0-9]) # Non numeric
		878	for ((egid = 101; egid <= 999; egid++)); do
		879	[[ -z $(egetent group ${egid}) ]] && break
		880	done
		881	esac
		882	dscl . create /groups/${egroup} gid ${egid}
		883	dscl . create /groups/${egroup} passwd '*'
		884	;;
		885
		886	-freebsd\|-dragonfly)
		887	case ${egid} in
		888	[!0-9]) # Non numeric
		889	for ((egid = 101; egid <= 999; egid++)); do
		890	[[ -z $(egetent group ${egid}) ]] && break
		891	done
		892	esac
		893	pw groupadd ${egroup} -g ${egid} \|\| die "enewgroup failed"
		894	;;
		895
		896	-netbsd)
		897	case ${egid} in
		898	[!0-9]) # Non numeric
		899	for ((egid = 101; egid <= 999; egid++)); do
		900	[[ -z $(egetent group ${egid}) ]] && break
		901	done
		902	esac
		903	groupadd -g ${egid} ${egroup} \|\| die "enewgroup failed"
		904	;;
		905
		906	*)
		907	# We specify -r so that we get a GID in the system range from login.defs
568	groupadd ${opts} ${egroup} \|\| die "enewgroup failed"	908	groupadd -r ${opts} ${egroup} \|\| die "enewgroup failed"
		909	;;
		910	esac
569	export SANDBOX_ON="${oldsandbox}"	911	export SANDBOX_ON="${oldsandbox}"
570	}	912	}
571		913
572	# Simple script to replace 'dos2unix' binaries	914	# @FUNCTION: edos2unix
573	# vapier@gentoo.org	915	# @USAGE: <file> [more files ...]
574	#	916	# @DESCRIPTION:
575	# edos2unix(file, <more files>...)	917	# A handy replacement for dos2unix, recode, fixdos, etc... This allows you
		918	# to remove all of these text utilities from DEPEND variables because this
		919	# is a script based solution. Just give it a list of files to convert and
		920	# they will all be changed from the DOS CRLF format to the UNIX LF format.
576	edos2unix() {	921	edos2unix() {
		922	echo "$@" \| xargs sed -i 's/\r$//'
		923	}
		924
		925	# Make a desktop file !
		926	# Great for making those icons in kde/gnome startmenu !
		927	# Amaze your friends ! Get the women ! Join today !
		928	#
		929	# make_desktop_entry(<command>, [name], [icon], [type], [fields])
		930	#
		931	# binary: what command does the app run with ?
		932	# name: the name that will show up in the menu
		933	# icon: give your little like a pretty little icon ...
		934	# this can be relative (to /usr/share/pixmaps) or
		935	# a full path to an icon
		936	# type: what kind of application is this ? for categories:
		937	# http://standards.freedesktop.org/menu-spec/latest/apa.html
		938	# fields: extra fields to append to the desktop file; a printf string
		939	make_desktop_entry() {
		940	[[ -z $1 ]] && die "make_desktop_entry: You must specify the executable"
		941
		942	local exec=${1}
		943	local name=${2:-${PN}}
		944	local icon=${3:-${PN}}
		945	local type=${4}
		946	local fields=${5}
		947
		948	if [[ -z ${type} ]] ; then
		949	local catmaj=${CATEGORY%%-*}
		950	local catmin=${CATEGORY##*-}
		951	case ${catmaj} in
		952	app)
		953	case ${catmin} in
		954	accessibility) type=Accessibility;;
		955	admin) type=System;;
		956	antivirus) type=System;;
		957	arch) type=Archiving;;
		958	backup) type=Archiving;;
		959	cdr) type=DiscBurning;;
		960	dicts) type=Dictionary;;
		961	doc) type=Documentation;;
		962	editors) type=TextEditor;;
		963	emacs) type=TextEditor;;
		964	emulation) type=Emulator;;
		965	laptop) type=HardwareSettings;;
		966	office) type=Office;;
		967	pda) type=PDA;;
		968	vim) type=TextEditor;;
		969	xemacs) type=TextEditor;;
		970	esac
		971	;;
		972
		973	dev)
		974	type="Development"
		975	;;
		976
		977	games)
		978	case ${catmin} in
		979	action\|fps) type=ActionGame;;
		980	arcade) type=ArcadeGame;;
		981	board) type=BoardGame;;
		982	emulation) type=Emulator;;
		983	kids) type=KidsGame;;
		984	puzzle) type=LogicGame;;
		985	roguelike) type=RolePlaying;;
		986	rpg) type=RolePlaying;;
		987	simulation) type=Simulation;;
		988	sports) type=SportsGame;;
		989	strategy) type=StrategyGame;;
		990	esac
		991	type="Game;${type}"
		992	;;
		993
		994	gnome)
		995	type="Gnome;GTK"
		996	;;
		997
		998	kde)
		999	type="KDE;Qt"
		1000	;;
		1001
		1002	mail)
		1003	type="Network;Email"
		1004	;;
		1005
		1006	media)
		1007	case ${catmin} in
		1008	gfx)
		1009	type=Graphics
		1010	;;
		1011	*)
		1012	case ${catmin} in
		1013	radio) type=Tuner;;
		1014	sound) type=Audio;;
		1015	tv) type=TV;;
		1016	video) type=Video;;
		1017	esac
		1018	type="AudioVideo;${type}"
		1019	;;
		1020	esac
		1021	;;
		1022
		1023	net)
		1024	case ${catmin} in
		1025	dialup) type=Dialup;;
		1026	ftp) type=FileTransfer;;
		1027	im) type=InstantMessaging;;
		1028	irc) type=IRCClient;;
		1029	mail) type=Email;;
		1030	news) type=News;;
		1031	nntp) type=News;;
		1032	p2p) type=FileTransfer;;
		1033	voip) type=Telephony;;
		1034	esac
		1035	type="Network;${type}"
		1036	;;
		1037
		1038	sci)
		1039	case ${catmin} in
		1040	astro*) type=Astronomy;;
		1041	bio*) type=Biology;;
		1042	calc*) type=Calculator;;
		1043	chem*) type=Chemistry;;
		1044	elec*) type=Electronics;;
		1045	geo*) type=Geology;;
		1046	math*) type=Math;;
		1047	physics) type=Physics;;
		1048	visual*) type=DataVisualization;;
		1049	esac
		1050	type="Education;Science;${type}"
		1051	;;
		1052
		1053	sys)
		1054	type="System"
		1055	;;
		1056
		1057	www)
		1058	case ${catmin} in
		1059	client) type=WebBrowser;;
		1060	esac
		1061	type="Network;${type}"
		1062	;;
		1063
		1064	*)
		1065	type=
		1066	;;
		1067	esac
		1068	fi
		1069	if [ "${SLOT}" == "0" ] ; then
		1070	local desktop_name="${PN}"
		1071	else
		1072	local desktop_name="${PN}-${SLOT}"
		1073	fi
		1074	local desktop="${T}/$(echo ${exec} \| sed 's:[[:space:]/:]:_:g')-${desktop_name}.desktop"
		1075	#local desktop=${T}/${exec%% *:-${desktop_name}}.desktop
		1076
		1077	# Don't append another ";" when a valid category value is provided.
		1078	type=${type%;}${type:+;}
		1079
		1080	eshopts_push -s extglob
		1081	if [[ -n ${icon} && ${icon} != /* ]] && [[ ${icon} == .xpm \|\| ${icon} == .png \|\| ${icon} == *.svg ]]; then
		1082	ewarn "As described in the Icon Theme Specification, icon file extensions are not"
		1083	ewarn "allowed in .desktop files if the value is not an absolute path."
		1084	icon=${icon%.@(xpm\|png\|svg)}
		1085	fi
		1086	eshopts_pop
		1087
		1088	cat <<-EOF > "${desktop}"
		1089	[Desktop Entry]
		1090	Name=${name}
		1091	Type=Application
		1092	Comment=${DESCRIPTION}
		1093	Exec=${exec}
		1094	TryExec=${exec%% *}
		1095	Icon=${icon}
		1096	Categories=${type}
		1097	EOF
		1098
		1099	if [[ ${fields:-=} != = ]] ; then
		1100	# 5th arg used to be value to Path=
		1101	ewarn "make_desktop_entry: update your 5th arg to read Path=${fields}"
		1102	fields="Path=${fields}"
		1103	fi
		1104	[[ -n ${fields} ]] && printf '%b\n' "${fields}" >> "${desktop}"
		1105
		1106	(
		1107	# wrap the env here so that the 'insinto' call
		1108	# doesn't corrupt the env of the caller
		1109	insinto /usr/share/applications
		1110	doins "${desktop}"
		1111	) \|\| die "installing desktop file failed"
		1112	}
		1113
		1114	# @FUNCTION: validate_desktop_entries
		1115	# @USAGE: [directories]
		1116	# @MAINTAINER:
		1117	# Carsten Lohrke <carlo@gentoo.org>
		1118	# @DESCRIPTION:
		1119	# Validate desktop entries using desktop-file-utils
		1120	validate_desktop_entries() {
		1121	if [[ -x /usr/bin/desktop-file-validate ]] ; then
		1122	einfo "Checking desktop entry validity"
		1123	local directories=""
		1124	for d in /usr/share/applications $@ ; do
		1125	[[ -d ${D}${d} ]] && directories="${directories} ${D}${d}"
		1126	done
		1127	if [[ -n ${directories} ]] ; then
		1128	for FILE in $(find ${directories} -name "*\.desktop" \
		1129	-not -path '.hidden' \| sort -u 2>/dev/null)
		1130	do
		1131	local temp=$(desktop-file-validate ${FILE} \| grep -v "warning:" \| \
		1132	sed -e "s\|error: \|\|" -e "s\|${FILE}:\|--\|g" )
		1133	[[ -n $temp ]] && elog ${temp/--/${FILE/${D}/}:}
		1134	done
		1135	fi
		1136	echo ""
		1137	else
		1138	einfo "Passing desktop entry validity check. Install dev-util/desktop-file-utils, if you want to help to improve Gentoo."
		1139	fi
		1140	}
		1141
		1142	# @FUNCTION: make_session_desktop
		1143	# @USAGE: <title> <command> [command args...]
		1144	# @DESCRIPTION:
		1145	# Make a GDM/KDM Session file. The title is the file to execute to start the
		1146	# Window Manager. The command is the name of the Window Manager.
		1147	#
		1148	# You can set the name of the file via the ${wm} variable.
		1149	make_session_desktop() {
		1150	[[ -z $1 ]] && eerror "$0: You must specify the title" && return 1
		1151	[[ -z $2 ]] && eerror "$0: You must specify the command" && return 1
		1152
		1153	local title=$1
		1154	local command=$2
		1155	local desktop=${T}/${wm:-${PN}}.desktop
		1156	shift 2
		1157
		1158	cat <<-EOF > "${desktop}"
		1159	[Desktop Entry]
		1160	Name=${title}
		1161	Comment=This session logs you into ${title}
		1162	Exec=${command} $*
		1163	TryExec=${command}
		1164	Type=XSession
		1165	EOF
		1166
		1167	(
		1168	# wrap the env here so that the 'insinto' call
		1169	# doesn't corrupt the env of the caller
		1170	insinto /usr/share/xsessions
		1171	doins "${desktop}"
		1172	)
		1173	}
		1174
		1175	# @FUNCTION: domenu
		1176	# @USAGE: <menus>
		1177	# @DESCRIPTION:
		1178	# Install the list of .desktop menu files into the appropriate directory
		1179	# (/usr/share/applications).
		1180	domenu() {
		1181	(
		1182	# wrap the env here so that the 'insinto' call
		1183	# doesn't corrupt the env of the caller
		1184	local i j ret=0
		1185	insinto /usr/share/applications
577	for f in $@ ; do	1186	for i in "$@" ; do
578	cp ${f} ${T}/	1187	if [[ -f ${i} ]] ; then
579	sed 's/\r$//' ${T}/${f}.old > ${f}	1188	doins "${i}"
		1189	((ret+=$?))
		1190	elif [[ -d ${i} ]] ; then
		1191	for j in "${i}"/*.desktop ; do
		1192	doins "${j}"
		1193	((ret+=$?))
		1194	done
		1195	else
		1196	((++ret))
		1197	fi
580	done	1198	done
		1199	exit ${ret}
		1200	)
581	}	1201	}
		1202
		1203	# @FUNCTION: newmenu
		1204	# @USAGE: <menu> <newname>
		1205	# @DESCRIPTION:
		1206	# Like all other new* functions, install the specified menu as newname.
		1207	newmenu() {
		1208	(
		1209	# wrap the env here so that the 'insinto' call
		1210	# doesn't corrupt the env of the caller
		1211	insinto /usr/share/applications
		1212	newins "$@"
		1213	)
		1214	}
		1215
		1216	# @FUNCTION: doicon
		1217	# @USAGE: <list of icons>
		1218	# @DESCRIPTION:
		1219	# Install the list of icons into the icon directory (/usr/share/pixmaps).
		1220	# This is useful in conjunction with creating desktop/menu files.
		1221	doicon() {
		1222	(
		1223	# wrap the env here so that the 'insinto' call
		1224	# doesn't corrupt the env of the caller
		1225	local i j ret
		1226	insinto /usr/share/pixmaps
		1227	for i in "$@" ; do
		1228	if [[ -f ${i} ]] ; then
		1229	doins "${i}"
		1230	((ret+=$?))
		1231	elif [[ -d ${i} ]] ; then
		1232	for j in "${i}"/*.png ; do
		1233	doins "${j}"
		1234	((ret+=$?))
		1235	done
		1236	else
		1237	((++ret))
		1238	fi
		1239	done
		1240	exit ${ret}
		1241	)
		1242	}
		1243
		1244	# @FUNCTION: newicon
		1245	# @USAGE: <icon> <newname>
		1246	# @DESCRIPTION:
		1247	# Like all other new* functions, install the specified icon as newname.
		1248	newicon() {
		1249	(
		1250	# wrap the env here so that the 'insinto' call
		1251	# doesn't corrupt the env of the caller
		1252	insinto /usr/share/pixmaps
		1253	newins "$@"
		1254	)
		1255	}
		1256
		1257	# for internal use only (unpack_pdv and unpack_makeself)
		1258	find_unpackable_file() {
		1259	local src=$1
		1260	if [[ -z ${src} ]] ; then
		1261	src=${DISTDIR}/${A}
		1262	else
		1263	if [[ -e ${DISTDIR}/${src} ]] ; then
		1264	src=${DISTDIR}/${src}
		1265	elif [[ -e ${PWD}/${src} ]] ; then
		1266	src=${PWD}/${src}
		1267	elif [[ -e ${src} ]] ; then
		1268	src=${src}
		1269	fi
		1270	fi
		1271	[[ ! -e ${src} ]] && return 1
		1272	echo "${src}"
		1273	}
		1274
		1275	# @FUNCTION: unpack_pdv
		1276	# @USAGE: <file to unpack> <size of off_t>
		1277	# @DESCRIPTION:
		1278	# Unpack those pesky pdv generated files ...
		1279	# They're self-unpacking programs with the binary package stuffed in
		1280	# the middle of the archive. Valve seems to use it a lot ... too bad
		1281	# it seems to like to segfault a lot :(. So lets take it apart ourselves.
		1282	#
		1283	# You have to specify the off_t size ... I have no idea how to extract that
		1284	# information out of the binary executable myself. Basically you pass in
		1285	# the size of the off_t type (in bytes) on the machine that built the pdv
		1286	# archive.
		1287	#
		1288	# One way to determine this is by running the following commands:
		1289	#
		1290	# @CODE
		1291	# strings <pdv archive> \| grep lseek
		1292	# strace -elseek <pdv archive>
		1293	# @CODE
		1294	#
		1295	# Basically look for the first lseek command (we do the strings/grep because
		1296	# sometimes the function call is _llseek or something) and steal the 2nd
		1297	# parameter. Here is an example:
		1298	#
		1299	# @CODE
		1300	# vapier@vapier 0 pdv_unpack # strings hldsupdatetool.bin \| grep lseek
		1301	# lseek
		1302	# vapier@vapier 0 pdv_unpack # strace -elseek ./hldsupdatetool.bin
		1303	# lseek(3, -4, SEEK_END) = 2981250
		1304	# @CODE
		1305	#
		1306	# Thus we would pass in the value of '4' as the second parameter.
		1307	unpack_pdv() {
		1308	local src=$(find_unpackable_file "$1")
		1309	local sizeoff_t=$2
		1310
		1311	[[ -z ${src} ]] && die "Could not locate source for '$1'"
		1312	[[ -z ${sizeoff_t} ]] && die "No idea what off_t size was used for this pdv :("
		1313
		1314	local shrtsrc=$(basename "${src}")
		1315	echo ">>> Unpacking ${shrtsrc} to ${PWD}"
		1316	local metaskip=$(tail -c ${sizeoff_t} "${src}" \| hexdump -e \"%i\")
		1317	local tailskip=$(tail -c $((${sizeoff_t}*2)) "${src}" \| head -c ${sizeoff_t} \| hexdump -e \"%i\")
		1318
		1319	# grab metadata for debug reasons
		1320	local metafile=$(emktemp)
		1321	tail -c +$((${metaskip}+1)) "${src}" > "${metafile}"
		1322
		1323	# rip out the final file name from the metadata
		1324	local datafile=$(tail -c +$((${metaskip}+1)) "${src}" \| strings \| head -n 1)
		1325	datafile=$(basename "${datafile}")
		1326
		1327	# now lets uncompress/untar the file if need be
		1328	local tmpfile=$(emktemp)
		1329	tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \| head -c 512 > ${tmpfile}
		1330
		1331	local iscompressed=$(file -b "${tmpfile}")
		1332	if [[ ${iscompressed:0:8} == "compress" ]] ; then
		1333	iscompressed=1
		1334	mv ${tmpfile}{,.Z}
		1335	gunzip ${tmpfile}
		1336	else
		1337	iscompressed=0
		1338	fi
		1339	local istar=$(file -b "${tmpfile}")
		1340	if [[ ${istar:0:9} == "POSIX tar" ]] ; then
		1341	istar=1
		1342	else
		1343	istar=0
		1344	fi
		1345
		1346	#for some reason gzip dies with this ... dd cant provide buffer fast enough ?
		1347	#dd if=${src} ibs=${metaskip} count=1 \
		1348	# \| dd ibs=${tailskip} skip=1 \
		1349	# \| gzip -dc \
		1350	# > ${datafile}
		1351	if [ ${iscompressed} -eq 1 ] ; then
		1352	if [ ${istar} -eq 1 ] ; then
		1353	tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
		1354	\| head -c $((${metaskip}-${tailskip})) \
		1355	\| tar -xzf -
		1356	else
		1357	tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
		1358	\| head -c $((${metaskip}-${tailskip})) \
		1359	\| gzip -dc \
		1360	> ${datafile}
		1361	fi
		1362	else
		1363	if [ ${istar} -eq 1 ] ; then
		1364	tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
		1365	\| head -c $((${metaskip}-${tailskip})) \
		1366	\| tar --no-same-owner -xf -
		1367	else
		1368	tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
		1369	\| head -c $((${metaskip}-${tailskip})) \
		1370	> ${datafile}
		1371	fi
		1372	fi
		1373	true
		1374	#[ -s "${datafile}" ] \|\| die "failure unpacking pdv ('${metaskip}' '${tailskip}' '${datafile}')"
		1375	#assert "failure unpacking pdv ('${metaskip}' '${tailskip}' '${datafile}')"
		1376	}
		1377
		1378	# @FUNCTION: unpack_makeself
		1379	# @USAGE: [file to unpack] [offset] [tail\|dd]
		1380	# @DESCRIPTION:
		1381	# Unpack those pesky makeself generated files ...
		1382	# They're shell scripts with the binary package tagged onto
		1383	# the end of the archive. Loki utilized the format as does
		1384	# many other game companies.
		1385	#
		1386	# If the file is not specified, then ${A} is used. If the
		1387	# offset is not specified then we will attempt to extract
		1388	# the proper offset from the script itself.
		1389	unpack_makeself() {
		1390	local src_input=${1:-${A}}
		1391	local src=$(find_unpackable_file "${src_input}")
		1392	local skip=$2
		1393	local exe=$3
		1394
		1395	[[ -z ${src} ]] && die "Could not locate source for '${src_input}'"
		1396
		1397	local shrtsrc=$(basename "${src}")
		1398	echo ">>> Unpacking ${shrtsrc} to ${PWD}"
		1399	if [[ -z ${skip} ]] ; then
		1400	local ver=$(grep -m1 -a '#.*Makeself' "${src}" \| awk '{print $NF}')
		1401	local skip=0
		1402	exe=tail
		1403	case ${ver} in
		1404	1.5.*\|1.6.0-nv) # tested 1.5.{3,4,5} ... guessing 1.5.x series is same
		1405	skip=$(grep -a ^skip= "${src}" \| cut -d= -f2)
		1406	;;
		1407	2.0\|2.0.1)
		1408	skip=$(grep -a ^$'\t'tail "${src}" \| awk '{print $2}' \| cut -b2-)
		1409	;;
		1410	2.1.1)
		1411	skip=$(grep -a ^offset= "${src}" \| awk '{print $2}' \| cut -b2-)
		1412	(( skip++ ))
		1413	;;
		1414	2.1.2)
		1415	skip=$(grep -a ^offset= "${src}" \| awk '{print $3}' \| head -n 1)
		1416	(( skip++ ))
		1417	;;
		1418	2.1.3)
		1419	skip=`grep -a ^offset= "${src}" \| awk '{print $3}'`
		1420	(( skip++ ))
		1421	;;
		1422	2.1.4\|2.1.5)
		1423	skip=$(grep -a offset=.head.wc "${src}" \| awk '{print $3}' \| head -n 1)
		1424	skip=$(head -n ${skip} "${src}" \| wc -c)
		1425	exe="dd"
		1426	;;
		1427	*)
		1428	eerror "I'm sorry, but I was unable to support the Makeself file."
		1429	eerror "The version I detected was '${ver}'."
		1430	eerror "Please file a bug about the file ${shrtsrc} at"
		1431	eerror "http://bugs.gentoo.org/ so that support can be added."
		1432	die "makeself version '${ver}' not supported"
		1433	;;
		1434	esac
		1435	debug-print "Detected Makeself version ${ver} ... using ${skip} as offset"
		1436	fi
		1437	case ${exe} in
		1438	tail) exe="tail -n +${skip} '${src}'";;
		1439	dd) exe="dd ibs=${skip} skip=1 if='${src}'";;
		1440	*) die "makeself cant handle exe '${exe}'"
		1441	esac
		1442
		1443	# lets grab the first few bytes of the file to figure out what kind of archive it is
		1444	local filetype tmpfile=$(emktemp)
		1445	eval ${exe} 2>/dev/null \| head -c 512 > "${tmpfile}"
		1446	filetype=$(file -b "${tmpfile}") \|\| die
		1447	case ${filetype} in
		1448	tar\ archive)
		1449	eval ${exe} \| tar --no-same-owner -xf -
		1450	;;
		1451	bzip2*)
		1452	eval ${exe} \| bzip2 -dc \| tar --no-same-owner -xf -
		1453	;;
		1454	gzip*)
		1455	eval ${exe} \| tar --no-same-owner -xzf -
		1456	;;
		1457	compress*)
		1458	eval ${exe} \| gunzip \| tar --no-same-owner -xf -
		1459	;;
		1460	*)
		1461	eerror "Unknown filetype \"${filetype}\" ?"
		1462	false
		1463	;;
		1464	esac
		1465	assert "failure unpacking (${filetype}) makeself ${shrtsrc} ('${ver}' +${skip})"
		1466	}
		1467
		1468	# @FUNCTION: check_license
		1469	# @USAGE: [license]
		1470	# @DESCRIPTION:
		1471	# Display a license for user to accept. If no license is
		1472	# specified, then ${LICENSE} is used.
		1473	check_license() {
		1474	local lic=$1
		1475	if [ -z "${lic}" ] ; then
		1476	lic="${PORTDIR}/licenses/${LICENSE}"
		1477	else
		1478	if [ -e "${PORTDIR}/licenses/${lic}" ] ; then
		1479	lic="${PORTDIR}/licenses/${lic}"
		1480	elif [ -e "${PWD}/${lic}" ] ; then
		1481	lic="${PWD}/${lic}"
		1482	elif [ -e "${lic}" ] ; then
		1483	lic="${lic}"
		1484	fi
		1485	fi
		1486	local l="`basename ${lic}`"
		1487
		1488	# here is where we check for the licenses the user already
		1489	# accepted ... if we don't find a match, we make the user accept
		1490	local alic
		1491	eshopts_push -o noglob # so that bash doesn't expand "*"
		1492	for alic in ${ACCEPT_LICENSE} ; do
		1493	if [[ ${alic} == ${l} ]]; then
		1494	eshopts_pop
		1495	return 0
		1496	fi
		1497	done
		1498	eshopts_pop
		1499	[ ! -f "${lic}" ] && die "Could not find requested license ${lic}"
		1500
		1501	local licmsg=$(emktemp)
		1502	cat <<-EOF > ${licmsg}
		1503	**********************************************************
		1504	The following license outlines the terms of use of this
		1505	package. You MUST accept this license for installation to
		1506	continue. When you are done viewing, hit 'q'. If you
		1507	CTRL+C out of this, the install will not run!
		1508	**********************************************************
		1509
		1510	EOF
		1511	cat ${lic} >> ${licmsg}
		1512	${PAGER:-less} ${licmsg} \|\| die "Could not execute pager (${PAGER}) to accept ${lic}"
		1513	einfon "Do you accept the terms of this license (${l})? [yes/no] "
		1514	read alic
		1515	case ${alic} in
		1516	yes\|Yes\|y\|Y)
		1517	return 0
		1518	;;
		1519	*)
		1520	echo;echo;echo
		1521	eerror "You MUST accept the license to continue! Exiting!"
		1522	die "Failed to accept license"
		1523	;;
		1524	esac
		1525	}
		1526
		1527	# @FUNCTION: cdrom_get_cds
		1528	# @USAGE: <file on cd1> [file on cd2] [file on cd3] [...]
		1529	# @DESCRIPTION:
		1530	# Aquire cd(s) for those lovely cd-based emerges. Yes, this violates
		1531	# the whole 'non-interactive' policy, but damnit I want CD support !
		1532	#
		1533	# With these cdrom functions we handle all the user interaction and
		1534	# standardize everything. All you have to do is call cdrom_get_cds()
		1535	# and when the function returns, you can assume that the cd has been
		1536	# found at CDROM_ROOT.
		1537	#
		1538	# The function will attempt to locate a cd based upon a file that is on
		1539	# the cd. The more files you give this function, the more cds
		1540	# the cdrom functions will handle.
		1541	#
		1542	# Normally the cdrom functions will refer to the cds as 'cd #1', 'cd #2',
		1543	# etc... If you want to give the cds better names, then just export
		1544	# the appropriate CDROM_NAME variable before calling cdrom_get_cds().
		1545	# Use CDROM_NAME for one cd, or CDROM_NAME_# for multiple cds. You can
		1546	# also use the CDROM_NAME_SET bash array.
		1547	#
		1548	# For those multi cd ebuilds, see the cdrom_load_next_cd() function.
		1549	cdrom_get_cds() {
		1550	# first we figure out how many cds we're dealing with by
		1551	# the # of files they gave us
		1552	local cdcnt=0
		1553	local f=
		1554	for f in "$@" ; do
		1555	((++cdcnt))
		1556	export CDROM_CHECK_${cdcnt}="$f"
		1557	done
		1558	export CDROM_TOTAL_CDS=${cdcnt}
		1559	export CDROM_CURRENT_CD=1
		1560
		1561	# now we see if the user gave use CD_ROOT ...
		1562	# if they did, let's just believe them that it's correct
		1563	if [[ -n ${CD_ROOT}${CD_ROOT_1} ]] ; then
		1564	local var=
		1565	cdcnt=0
		1566	while [[ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ]] ; do
		1567	((++cdcnt))
		1568	var="CD_ROOT_${cdcnt}"
		1569	[[ -z ${!var} ]] && var="CD_ROOT"
		1570	if [[ -z ${!var} ]] ; then
		1571	eerror "You must either use just the CD_ROOT"
		1572	eerror "or specify ALL the CD_ROOT_X variables."
		1573	eerror "In this case, you will need ${CDROM_TOTAL_CDS} CD_ROOT_X variables."
		1574	die "could not locate CD_ROOT_${cdcnt}"
		1575	fi
		1576	done
		1577	export CDROM_ROOT=${CD_ROOT_1:-${CD_ROOT}}
		1578	einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
		1579	export CDROM_SET=-1
		1580	for f in ${CDROM_CHECK_1//:/ } ; do
		1581	((++CDROM_SET))
		1582	[[ -e ${CDROM_ROOT}/${f} ]] && break
		1583	done
		1584	export CDROM_MATCH=${f}
		1585	return
		1586	fi
		1587
		1588	# User didn't help us out so lets make sure they know they can
		1589	# simplify the whole process ...
		1590	if [[ ${CDROM_TOTAL_CDS} -eq 1 ]] ; then
		1591	einfo "This ebuild will need the ${CDROM_NAME:-cdrom for ${PN}}"
		1592	echo
		1593	einfo "If you do not have the CD, but have the data files"
		1594	einfo "mounted somewhere on your filesystem, just export"
		1595	einfo "the variable CD_ROOT so that it points to the"
		1596	einfo "directory containing the files."
		1597	echo
		1598	einfo "For example:"
		1599	einfo "export CD_ROOT=/mnt/cdrom"
		1600	echo
		1601	else
		1602	if [[ -n ${CDROM_NAME_SET} ]] ; then
		1603	# Translate the CDROM_NAME_SET array into CDROM_NAME_#
		1604	cdcnt=0
		1605	while [[ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ]] ; do
		1606	((++cdcnt))
		1607	export CDROM_NAME_${cdcnt}="${CDROM_NAME_SET[$((${cdcnt}-1))]}"
		1608	done
		1609	fi
		1610
		1611	einfo "This package will need access to ${CDROM_TOTAL_CDS} cds."
		1612	cdcnt=0
		1613	while [[ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ]] ; do
		1614	((++cdcnt))
		1615	var="CDROM_NAME_${cdcnt}"
		1616	[[ ! -z ${!var} ]] && einfo " CD ${cdcnt}: ${!var}"
		1617	done
		1618	echo
		1619	einfo "If you do not have the CDs, but have the data files"
		1620	einfo "mounted somewhere on your filesystem, just export"
		1621	einfo "the following variables so they point to the right place:"
		1622	einfon ""
		1623	cdcnt=0
		1624	while [[ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ]] ; do
		1625	((++cdcnt))
		1626	echo -n " CD_ROOT_${cdcnt}"
		1627	done
		1628	echo
		1629	einfo "Or, if you have all the files in the same place, or"
		1630	einfo "you only have one cdrom, you can export CD_ROOT"
		1631	einfo "and that place will be used as the same data source"
		1632	einfo "for all the CDs."
		1633	echo
		1634	einfo "For example:"
		1635	einfo "export CD_ROOT_1=/mnt/cdrom"
		1636	echo
		1637	fi
		1638
		1639	export CDROM_SET=""
		1640	export CDROM_CURRENT_CD=0
		1641	cdrom_load_next_cd
		1642	}
		1643
		1644	# @FUNCTION: cdrom_load_next_cd
		1645	# @DESCRIPTION:
		1646	# Some packages are so big they come on multiple CDs. When you're done reading
		1647	# files off a CD and want access to the next one, just call this function.
		1648	# Again, all the messy details of user interaction are taken care of for you.
		1649	# Once this returns, just read the variable CDROM_ROOT for the location of the
		1650	# mounted CD. Note that you can only go forward in the CD list, so make sure
		1651	# you only call this function when you're done using the current CD.
		1652	cdrom_load_next_cd() {
		1653	local var
		1654	((++CDROM_CURRENT_CD))
		1655
		1656	unset CDROM_ROOT
		1657	var=CD_ROOT_${CDROM_CURRENT_CD}
		1658	[[ -z ${!var} ]] && var="CD_ROOT"
		1659	if [[ -z ${!var} ]] ; then
		1660	var="CDROM_CHECK_${CDROM_CURRENT_CD}"
		1661	_cdrom_locate_file_on_cd ${!var}
		1662	else
		1663	export CDROM_ROOT=${!var}
		1664	fi
		1665
		1666	einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
		1667	}
		1668
		1669	# this is used internally by the cdrom_get_cds() and cdrom_load_next_cd()
		1670	# functions. this should never be called from an ebuild.
		1671	# all it does is try to locate a give file on a cd ... if the cd isn't
		1672	# found, then a message asking for the user to insert the cdrom will be
		1673	# displayed and we'll hang out here until:
		1674	# (1) the file is found on a mounted cdrom
		1675	# (2) the user hits CTRL+C
		1676	_cdrom_locate_file_on_cd() {
		1677	local mline=""
		1678	local showedmsg=0 showjolietmsg=0
		1679
		1680	while [[ -z ${CDROM_ROOT} ]] ; do
		1681	local i=0
		1682	local -a cdset=(${*//:/ })
		1683	if [[ -n ${CDROM_SET} ]] ; then
		1684	cdset=(${cdset[${CDROM_SET}]})
		1685	fi
		1686
		1687	while [[ -n ${cdset[${i}]} ]] ; do
		1688	local dir=$(dirname ${cdset[${i}]})
		1689	local file=$(basename ${cdset[${i}]})
		1690
		1691	local point= node= fs= foo=
		1692	while read point node fs foo ; do
		1693	[[ " cd9660 iso9660 udf " != " ${fs} " ]] && \
		1694	! [[ ${fs} == "subfs" && ",${opts}," == ",fs=cdfss," ]] \
		1695	&& continue
		1696	point=${point//\040/ }
		1697	[[ ! -d ${point}/${dir} ]] && continue
		1698	[[ -z $(find "${point}/${dir}" -maxdepth 1 -iname "${file}") ]] && continue
		1699	export CDROM_ROOT=${point}
		1700	export CDROM_SET=${i}
		1701	export CDROM_MATCH=${cdset[${i}]}
		1702	return
		1703	done <<< "$(get_mounts)"
		1704
		1705	((++i))
		1706	done
		1707
		1708	echo
		1709	if [[ ${showedmsg} -eq 0 ]] ; then
		1710	if [[ ${CDROM_TOTAL_CDS} -eq 1 ]] ; then
		1711	if [[ -z ${CDROM_NAME} ]] ; then
		1712	einfo "Please insert+mount the cdrom for ${PN} now !"
		1713	else
		1714	einfo "Please insert+mount the ${CDROM_NAME} cdrom now !"
		1715	fi
		1716	else
		1717	if [[ -z ${CDROM_NAME_1} ]] ; then
		1718	einfo "Please insert+mount cd #${CDROM_CURRENT_CD} for ${PN} now !"
		1719	else
		1720	local var="CDROM_NAME_${CDROM_CURRENT_CD}"
		1721	einfo "Please insert+mount the ${!var} cdrom now !"
		1722	fi
		1723	fi
		1724	showedmsg=1
		1725	fi
		1726	einfo "Press return to scan for the cd again"
		1727	einfo "or hit CTRL+C to abort the emerge."
		1728	echo
		1729	if [[ ${showjolietmsg} -eq 0 ]] ; then
		1730	showjolietmsg=1
		1731	else
		1732	ewarn "If you are having trouble with the detection"
		1733	ewarn "of your CD, it is possible that you do not have"
		1734	ewarn "Joliet support enabled in your kernel. Please"
		1735	ewarn "check that CONFIG_JOLIET is enabled in your kernel."
		1736	ebeep 5
		1737	fi
		1738	read \|\| die "something is screwed with your system"
		1739	done
		1740	}
		1741
		1742	# @FUNCTION: strip-linguas
		1743	# @USAGE: [<allow LINGUAS>\|<-i\|-u> <directories of .po files>]
		1744	# @DESCRIPTION:
		1745	# Make sure that LINGUAS only contains languages that
		1746	# a package can support. The first form allows you to
		1747	# specify a list of LINGUAS. The -i builds a list of po
		1748	# files found in all the directories and uses the
		1749	# intersection of the lists. The -u builds a list of po
		1750	# files found in all the directories and uses the union
		1751	# of the lists.
		1752	strip-linguas() {
		1753	local ls newls nols
		1754	if [[ $1 == "-i" ]] \|\| [[ $1 == "-u" ]] ; then
		1755	local op=$1; shift
		1756	ls=$(find "$1" -name '*.po' -exec basename {} .po ';'); shift
		1757	local d f
		1758	for d in "$@" ; do
		1759	if [[ ${op} == "-u" ]] ; then
		1760	newls=${ls}
		1761	else
		1762	newls=""
		1763	fi
		1764	for f in $(find "$d" -name '*.po' -exec basename {} .po ';') ; do
		1765	if [[ ${op} == "-i" ]] ; then
		1766	has ${f} ${ls} && newls="${newls} ${f}"
		1767	else
		1768	has ${f} ${ls} \|\| newls="${newls} ${f}"
		1769	fi
		1770	done
		1771	ls=${newls}
		1772	done
		1773	else
		1774	ls="$@"
		1775	fi
		1776
		1777	nols=""
		1778	newls=""
		1779	for f in ${LINGUAS} ; do
		1780	if has ${f} ${ls} ; then
		1781	newls="${newls} ${f}"
		1782	else
		1783	nols="${nols} ${f}"
		1784	fi
		1785	done
		1786	[[ -n ${nols} ]] \
		1787	&& ewarn "Sorry, but ${PN} does not support the LINGUAS:" ${nols}
		1788	export LINGUAS=${newls:1}
		1789	}
		1790
		1791	# @FUNCTION: preserve_old_lib
		1792	# @USAGE: <libs to preserve> [more libs]
		1793	# @DESCRIPTION:
		1794	# These functions are useful when a lib in your package changes ABI SONAME.
		1795	# An example might be from libogg.so.0 to libogg.so.1. Removing libogg.so.0
		1796	# would break packages that link against it. Most people get around this
		1797	# by using the portage SLOT mechanism, but that is not always a relevant
		1798	# solution, so instead you can call this from pkg_preinst. See also the
		1799	# preserve_old_lib_notify function.
		1800	preserve_old_lib() {
		1801	if [[ ${EBUILD_PHASE} != "preinst" ]] ; then
		1802	eerror "preserve_old_lib() must be called from pkg_preinst() only"
		1803	die "Invalid preserve_old_lib() usage"
		1804	fi
		1805	[[ -z $1 ]] && die "Usage: preserve_old_lib <library to preserve> [more libraries to preserve]"
		1806
		1807	# let portage worry about it
		1808	has preserve-libs ${FEATURES} && return 0
		1809
		1810	local lib dir
		1811	for lib in "$@" ; do
		1812	[[ -e ${ROOT}/${lib} ]] \|\| continue
		1813	dir=${lib%/*}
		1814	dodir ${dir} \|\| die "dodir ${dir} failed"
		1815	cp "${ROOT}"/${lib} "${D}"/${lib} \|\| die "cp ${lib} failed"
		1816	touch "${D}"/${lib}
		1817	done
		1818	}
		1819
		1820	# @FUNCTION: preserve_old_lib_notify
		1821	# @USAGE: <libs to notify> [more libs]
		1822	# @DESCRIPTION:
		1823	# Spit helpful messages about the libraries preserved by preserve_old_lib.
		1824	preserve_old_lib_notify() {
		1825	if [[ ${EBUILD_PHASE} != "postinst" ]] ; then
		1826	eerror "preserve_old_lib_notify() must be called from pkg_postinst() only"
		1827	die "Invalid preserve_old_lib_notify() usage"
		1828	fi
		1829
		1830	# let portage worry about it
		1831	has preserve-libs ${FEATURES} && return 0
		1832
		1833	local lib notice=0
		1834	for lib in "$@" ; do
		1835	[[ -e ${ROOT}/${lib} ]] \|\| continue
		1836	if [[ ${notice} -eq 0 ]] ; then
		1837	notice=1
		1838	ewarn "Old versions of installed libraries were detected on your system."
		1839	ewarn "In order to avoid breaking packages that depend on these old libs,"
		1840	ewarn "the libraries are not being removed. You need to run revdep-rebuild"
		1841	ewarn "in order to remove these old dependencies. If you do not have this"
		1842	ewarn "helper program, simply emerge the 'gentoolkit' package."
		1843	ewarn
		1844	fi
		1845	# temp hack for #348634 #357225
		1846	[[ ${PN} == "mpfr" ]] && lib=${lib##*/}
		1847	ewarn " # revdep-rebuild --library '${lib}'"
		1848	done
		1849	if [[ ${notice} -eq 1 ]] ; then
		1850	ewarn
		1851	ewarn "Once you've finished running revdep-rebuild, it should be safe to"
		1852	ewarn "delete the old libraries. Here is a copy & paste for the lazy:"
		1853	for lib in "$@" ; do
		1854	ewarn " # rm '${lib}'"
		1855	done
		1856	fi
		1857	}
		1858
		1859	# @FUNCTION: built_with_use
		1860	# @USAGE: [--hidden] [--missing <action>] [-a\|-o] <DEPEND ATOM> <List of USE flags>
		1861	# @DESCRIPTION:
		1862	#
		1863	# Deprecated: Use EAPI 2 use deps in DEPEND\|RDEPEND and with has_version calls.
		1864	#
		1865	# A temporary hack until portage properly supports DEPENDing on USE
		1866	# flags being enabled in packages. This will check to see if the specified
		1867	# DEPEND atom was built with the specified list of USE flags. The
		1868	# --missing option controls the behavior if called on a package that does
		1869	# not actually support the defined USE flags (aka listed in IUSE).
		1870	# The default is to abort (call die). The -a and -o flags control
		1871	# the requirements of the USE flags. They correspond to "and" and "or"
		1872	# logic. So the -a flag means all listed USE flags must be enabled
		1873	# while the -o flag means at least one of the listed IUSE flags must be
		1874	# enabled. The --hidden option is really for internal use only as it
		1875	# means the USE flag we're checking is hidden expanded, so it won't be found
		1876	# in IUSE like normal USE flags.
		1877	#
		1878	# Remember that this function isn't terribly intelligent so order of optional
		1879	# flags matter.
		1880	built_with_use() {
		1881	local hidden="no"
		1882	if [[ $1 == "--hidden" ]] ; then
		1883	hidden="yes"
		1884	shift
		1885	fi
		1886
		1887	local missing_action="die"
		1888	if [[ $1 == "--missing" ]] ; then
		1889	missing_action=$2
		1890	shift ; shift
		1891	case ${missing_action} in
		1892	true\|false\|die) ;;
		1893	*) die "unknown action '${missing_action}'";;
		1894	esac
		1895	fi
		1896
		1897	local opt=$1
		1898	[[ ${opt:0:1} = "-" ]] && shift \|\| opt="-a"
		1899
		1900	local PKG=$(best_version $1)
		1901	[[ -z ${PKG} ]] && die "Unable to resolve $1 to an installed package"
		1902	shift
		1903
		1904	local USEFILE=${ROOT}/var/db/pkg/${PKG}/USE
		1905	local IUSEFILE=${ROOT}/var/db/pkg/${PKG}/IUSE
		1906
		1907	# if the IUSE file doesn't exist, the read will error out, we need to handle
		1908	# this gracefully
		1909	if [[ ! -e ${USEFILE} ]] \|\| [[ ! -e ${IUSEFILE} && ${hidden} == "no" ]] ; then
		1910	case ${missing_action} in
		1911	true) return 0;;
		1912	false) return 1;;
		1913	die) die "Unable to determine what USE flags $PKG was built with";;
		1914	esac
		1915	fi
		1916
		1917	if [[ ${hidden} == "no" ]] ; then
		1918	local IUSE_BUILT=( $(<"${IUSEFILE}") )
		1919	# Don't check USE_EXPAND #147237
		1920	local expand
		1921	for expand in $(echo ${USE_EXPAND} \| tr '[:upper:]' '[:lower:]') ; do
		1922	if [[ $1 == ${expand}_* ]] ; then
		1923	expand=""
		1924	break
		1925	fi
		1926	done
		1927	if [[ -n ${expand} ]] ; then
		1928	if ! has $1 ${IUSE_BUILT[@]#[-+]} ; then
		1929	case ${missing_action} in
		1930	true) return 0;;
		1931	false) return 1;;
		1932	die) die "$PKG does not actually support the $1 USE flag!";;
		1933	esac
		1934	fi
		1935	fi
		1936	fi
		1937
		1938	local USE_BUILT=$(<${USEFILE})
		1939	while [[ $# -gt 0 ]] ; do
		1940	if [[ ${opt} = "-o" ]] ; then
		1941	has $1 ${USE_BUILT} && return 0
		1942	else
		1943	has $1 ${USE_BUILT} \|\| return 1
		1944	fi
		1945	shift
		1946	done
		1947	[[ ${opt} = "-a" ]]
		1948	}
		1949
		1950	# @FUNCTION: epunt_cxx
		1951	# @USAGE: [dir to scan]
		1952	# @DESCRIPTION:
		1953	# Many configure scripts wrongly bail when a C++ compiler could not be
		1954	# detected. If dir is not specified, then it defaults to ${S}.
		1955	#
		1956	# http://bugs.gentoo.org/73450
		1957	epunt_cxx() {
		1958	local dir=$1
		1959	[[ -z ${dir} ]] && dir=${S}
		1960	ebegin "Removing useless C++ checks"
		1961	local f
		1962	find "${dir}" -name configure \| while read f ; do
		1963	patch --no-backup-if-mismatch -p0 "${f}" "${PORTDIR}/eclass/ELT-patches/nocxx/nocxx.patch" > /dev/null
		1964	done
		1965	eend 0
		1966	}
		1967
		1968	# @FUNCTION: make_wrapper
		1969	# @USAGE: <wrapper> <target> [chdir] [libpaths] [installpath]
		1970	# @DESCRIPTION:
		1971	# Create a shell wrapper script named wrapper in installpath
		1972	# (defaults to the bindir) to execute target (default of wrapper) by
		1973	# first optionally setting LD_LIBRARY_PATH to the colon-delimited
		1974	# libpaths followed by optionally changing directory to chdir.
		1975	make_wrapper() {
		1976	local wrapper=$1 bin=$2 chdir=$3 libdir=$4 path=$5
		1977	local tmpwrapper=$(emktemp)
		1978	# We don't want to quote ${bin} so that people can pass complex
		1979	# things as $bin ... "./someprog --args"
		1980	cat << EOF > "${tmpwrapper}"
		1981	#!/bin/sh
		1982	cd "${chdir:-.}"
		1983	if [ -n "${libdir}" ] ; then
		1984	if [ "\${LD_LIBRARY_PATH+set}" = "set" ] ; then
		1985	export LD_LIBRARY_PATH="\${LD_LIBRARY_PATH}:${libdir}"
		1986	else
		1987	export LD_LIBRARY_PATH="${libdir}"
		1988	fi
		1989	fi
		1990	exec ${bin} "\$@"
		1991	EOF
		1992	chmod go+rx "${tmpwrapper}"
		1993	if [[ -n ${path} ]] ; then
		1994	(
		1995	exeinto "${path}"
		1996	newexe "${tmpwrapper}" "${wrapper}"
		1997	) \|\| die
		1998	else
		1999	newbin "${tmpwrapper}" "${wrapper}" \|\| die
		2000	fi
		2001	}
		2002
		2003	# @FUNCTION: path_exists
		2004	# @USAGE: [-a\|-o] <paths>
		2005	# @DESCRIPTION:
		2006	# Check if the specified paths exist. Works for all types of paths
		2007	# (files/dirs/etc...). The -a and -o flags control the requirements
		2008	# of the paths. They correspond to "and" and "or" logic. So the -a
		2009	# flag means all the paths must exist while the -o flag means at least
		2010	# one of the paths must exist. The default behavior is "and". If no
		2011	# paths are specified, then the return value is "false".
		2012	path_exists() {
		2013	local opt=$1
		2014	[[ ${opt} == -[ao] ]] && shift \|\| opt="-a"
		2015
		2016	# no paths -> return false
		2017	# same behavior as: [[ -e "" ]]
		2018	[[ $# -eq 0 ]] && return 1
		2019
		2020	local p r=0
		2021	for p in "$@" ; do
		2022	[[ -e ${p} ]]
		2023	: $(( r += $? ))
		2024	done
		2025
		2026	case ${opt} in
		2027	-a) return $(( r != 0 )) ;;
		2028	-o) return $(( r == $# )) ;;
		2029	esac
		2030	}
		2031
		2032	# @FUNCTION: in_iuse
		2033	# @USAGE: <flag>
		2034	# @DESCRIPTION:
		2035	# Determines whether the given flag is in IUSE. Strips IUSE default prefixes
		2036	# as necessary.
		2037	#
		2038	# Note that this function should not be used in the global scope.
		2039	in_iuse() {
		2040	debug-print-function ${FUNCNAME} "${@}"
		2041	[[ ${#} -eq 1 ]] \|\| die "Invalid args to ${FUNCNAME}()"
		2042
		2043	local flag=${1}
		2044	local liuse=( ${IUSE} )
		2045
		2046	has "${flag}" "${liuse[@]#[+-]}"
		2047	}

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