/[gentoo-x86]/eclass/portability.eclass
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Revision 1.5 - (show annotations) (download)
Wed Dec 14 18:43:34 2005 UTC (8 years, 8 months ago) by flameeyes
Branch: MAIN
Changes since 1.4: +7 -6 lines
Refactor egethome() function to use ${CHOST} instead of (deprecated) ${USERLAND}. Also add DragonFly support (same as FreeBSD).

1 # Copyright 1999-2005 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/portability.eclass,v 1.4 2005/09/26 23:33:55 flameeyes Exp $
4 #
5 # Author: Diego Pettenò <flameeyes@gentoo.org>
6 #
7 # This eclass is created to avoid using non-portable GNUisms inside ebuilds
8 #
9 # NB: If you add anything, please comment it!
10
11 # treecopy orig1 orig2 orig3 .... dest
12 #
13 # mimic cp --parents copy, but working on BSD userland as well
14 treecopy() {
15 dest=${!#}
16 files_count=$#
17
18 while(( $# > 1 )); do
19 dirstruct=$(dirname "$1")
20 mkdir -p "${dest}/${dirstruct}"
21 cp -pPR "$1" "${dest}/${dirstruct}"
22
23 shift
24 done
25 }
26
27 # seq min max
28 #
29 # compatibility function that mimes seq command if not available
30 seq() {
31 local p=$(type -P seq)
32
33 case $# in
34 1) min=1 max=$1 step=1 ;;
35 2) min=$1 max=$2 step=1 ;;
36 3) min=$1 max=$3 step=$2 ;;
37 *) die "seq called with wrong number of arguments" ;;
38 esac
39
40 if [[ -z ${p} ]] ; then
41 local reps
42 # BSD userland
43 if [[ ${step} != 0 ]]; then
44 reps=$(( ($max-$min) / $step +1 ))
45 else
46 reps=0
47 fi
48
49 jot $reps $min $max $step
50 else
51 "${p}" $min $step $max
52 fi
53 }
54
55 # Gets the linker flag to link to dlopen() function
56 dlopen_lib() {
57 if [[ ${ELIBC} != *BSD ]]; then
58 echo "-ldl"
59 fi
60 }
61
62 # Gets the home directory for the specified user
63 # it's a wrap around egetent as the position of the home directory in the line
64 # varies depending on the os used.
65 #
66 # To use that, inherit eutils, not portability!
67 egethome() {
68 ent=$(egetent passwd $1)
69
70 case ${CHOST} in
71 *-darwin*|*-freebsd*|*-dragonfly*)
72 # Darwin, OSX, FreeBSD and DragonFly use position 9 to store homedir
73 cut -d: -f9 <<<${ent}
74 *)
75 # Linux, NetBSD and OpenBSD use position 6 instead
76 cut -d: -f6 <<<${ent}
77 esac
78 }
79
80 # Gets the name of the BSD-ish make command (pmake from NetBSD)
81 #
82 # This will return make (provided by system packages) for BSD userlands,
83 # or bsdmake for Darwin userlands and pmake for the rest of userlands,
84 # both of which are provided by sys-devel/pmake package.
85 #
86 # Note: the bsdmake for Darwin userland is with compatibility with MacOSX
87 # default name.
88 get_bmake() {
89 if [[ ${USERLAND} == *BSD ]]; then
90 echo make
91 elif [[ ${USERLAND} == "Darwin" ]]; then
92 echo bsdmake
93 else
94 echo pmake
95 fi
96 }

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