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Revision 1.15 - (show annotations) (download)
Wed May 30 15:25:08 2012 UTC (2 years, 1 month ago) by slyfox
Branch: MAIN
Changes since 1.14: +2 -2 lines
Use 'darcs get --lazy' instead of 'darcs get --partial' (gone in darcs-2.8).

1 # Copyright 1999-2012 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/darcs.eclass,v 1.14 2012/04/02 17:48:06 slyfox Exp $
4
5 # @ECLASS: darcs.eclass
6 # @MAINTAINER:
7 # "Gentoo's Haskell Language team" <haskell@gentoo.org>
8 # Sergei Trofimovich <slyfox@gentoo.org>
9 # @AUTHOR:
10 # Original Author: Jeffrey Yasskin <jyasskin@mail.utexas.edu>
11 # @BLURB: This eclass provides functions for fetch and unpack darcs repositories
12 # @DESCRIPTION:
13 # This eclass provides the generic darcs fetching functions.
14 #
15 # Define the EDARCS_REPOSITORY variable at least.
16 # The ${S} variable is set to ${WORKDIR}/${P}.
17 # @THANKS TO:
18 # <rphillips@gentoo.org> (tla eclass author)
19 # Andres Loeh <kosmikus@gentoo.org> (darcs.eclass author)
20 # Alexander Vershilov <alexander.vershilov@gmail.com> (various contributions)
21
22 # TODO:
23
24 # support for tags
25
26 inherit eutils # eshopts_{push,pop}
27
28 # Don't download anything other than the darcs repository
29 SRC_URI=""
30
31 # You shouldn't change these settings yourself! The ebuild/eclass inheriting
32 # this eclass will take care of that.
33
34 # --- begin ebuild-configurable settings
35
36 # darcs command to run
37 # @ECLASS-VARIABLE: EDARCS_DARCS_CMD
38 # @DESCRIPTION:
39 # Path to darcs binary.
40 : ${EDARCS_DARCS_CMD:=darcs}
41
42 # darcs commands with command-specific options
43
44 # @ECLASS-VARIABLE: EDARCS_GET_CMD
45 # @DESCRIPTION:
46 # First fetch darcs command.
47 : ${EDARCS_GET_CMD:=get --lazy}
48
49 # @ECLASS-VARIABLE: EDARCS_UPDATE_CMD
50 # @DESCRIPTION:
51 # Repo update darcs command.
52 : ${EDARCS_UPDATE_CMD:=pull}
53
54 # @ECLASS-VARIABLE: EDARCS_OPTIONS
55 # @DESCRIPTION:
56 # Options to pass to both the "get" and "update" commands
57 : ${EDARCS_OPTIONS:=--set-scripts-executable}
58
59 # @ECLASS-VARIABLE: EDARCS_TOP_DIR
60 # @DESCRIPTION:
61 # Where the darcs repositories are stored/accessed
62 : ${EDARCS_TOP_DIR:=${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/darcs-src}
63
64 # @ECLASS-VARIABLE: EDARCS_REPOSITORY
65 # @DESCRIPTION:
66 # The URI to the repository.
67 : ${EDARCS_REPOSITORY:=}
68
69 # @ECLASS-VARIABLE: EDARCS_OFFLINE
70 # @DESCRIPTION:
71 # Set this variable to a non-empty value to disable the automatic updating of
72 # a darcs repository. This is intended to be set outside the darcs source
73 # tree by users. Defaults to EVCS_OFFLINE value.
74 : ${EDARCS_OFFLINE:=${EVCS_OFFLINE}}
75
76 # @ECLASS-VARIABLE: EDARCS_CLEAN
77 # @DESCRIPTION:
78 # Set this to something to get a clean copy when updating
79 # (removes the working directory, then uses EDARCS_GET_CMD to
80 # re-download it.)
81 : ${EDARCS_CLEAN:=}
82
83 # --- end ebuild-configurable settings ---
84
85 DEPEND="dev-vcs/darcs
86 net-misc/rsync"
87
88 # @FUNCTION: darcs_patchcount
89 # @DESCRIPTION:
90 # Internal function to determine amount of patches in repository.
91 darcs_patchcount() {
92 set -- $(${EDARCS_DARCS_CMD} show repo | grep "Num Patches")
93 # handle string like: " Num Patches: 3860"
94 echo ${3}
95 }
96
97 # @FUNCTION: darcs_fetch
98 # @DESCRIPTION:
99 # Internal function is called from darcs_src_unpack
100 darcs_fetch() {
101 # The local directory to store the repository (useful to ensure a
102 # unique local name); relative to EDARCS_TOP_DIR
103 [[ -z ${EDARCS_LOCALREPO} ]] && [[ -n ${EDARCS_REPOSITORY} ]] \
104 && EDARCS_LOCALREPO=${EDARCS_REPOSITORY%/} \
105 && EDARCS_LOCALREPO=${EDARCS_LOCALREPO##*/}
106
107 debug-print-function ${FUNCNAME} $*
108
109 if [[ -n ${EDARCS_CLEAN} ]]; then
110 addwrite "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}"
111 rm -rf "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}"
112 fi
113
114 # create the top dir if needed
115 if [[ ! -d ${EDARCS_TOP_DIR} ]]; then
116 # note that the addwrite statements in this block are only there to allow creating EDARCS_TOP_DIR;
117 # we've already allowed writing inside it
118 # this is because it's simpler than trying to find out the parent path of the directory, which
119 # would need to be the real path and not a symlink for things to work (so we can't just remove
120 # the last path element in the string)
121 debug-print "${FUNCNAME}: checkout mode. creating darcs directory"
122 addwrite /foobar
123 addwrite /
124 mkdir -p "${EDARCS_TOP_DIR}"
125 export SANDBOX_WRITE="${SANDBOX_WRITE//:\/foobar:\/}"
126 fi
127
128 # in case EDARCS_DARCS_DIR is a symlink to a dir, get the real
129 # dir's path, otherwise addwrite() doesn't work.
130 pushd .
131 cd -P "${EDARCS_TOP_DIR}" > /dev/null
132 EDARCS_TOP_DIR="`/bin/pwd`"
133
134 # disable the sandbox for this dir
135 addwrite "${EDARCS_TOP_DIR}"
136
137 # determine checkout or update mode and change to the right directory.
138 if [[ ! -d "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}/_darcs" ]]; then
139 mode=get
140 cd "${EDARCS_TOP_DIR}"
141 else
142 mode=update
143 cd "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}"
144 fi
145
146 # commands to run
147 local cmdget="${EDARCS_DARCS_CMD} ${EDARCS_GET_CMD} ${EDARCS_OPTIONS} --repo-name=${EDARCS_LOCALREPO} ${EDARCS_REPOSITORY}"
148 local cmdupdate="${EDARCS_DARCS_CMD} ${EDARCS_UPDATE_CMD} --all ${EDARCS_OPTIONS} ${EDARCS_REPOSITORY}"
149
150 if [[ ${mode} == "get" ]]; then
151 einfo "Running ${cmdget}"
152 eval ${cmdget} || die "darcs get command failed"
153 elif [[ -n ${EDARCS_OFFLINE} ]] ; then
154 einfo "Offline update"
155 elif [[ ${mode} == "update" ]]; then
156 einfo "Running ${cmdupdate}"
157 eval ${cmdupdate} || die "darcs update command failed"
158 fi
159
160 export EDARCS_PATCHCOUNT=$(darcs_patchcount)
161 einfo " patches in repo: ${EDARCS_PATCHCOUNT}"
162
163 popd
164 }
165
166 # @FUNCTION: darcs_src_unpack
167 # @DESCRIPTION:
168 # src_upack function
169 darcs_src_unpack() {
170 # The local directory to store the repository (useful to ensure a
171 # unique local name); relative to EDARCS_TOP_DIR
172 [[ -z ${EDARCS_LOCALREPO} ]] && [[ -n ${EDARCS_REPOSITORY} ]] \
173 && EDARCS_LOCALREPO=${EDARCS_REPOSITORY%/} \
174 && EDARCS_LOCALREPO=${EDARCS_LOCALREPO##*/}
175
176 debug-print-function ${FUNCNAME} $*
177
178 debug-print "${FUNCNAME}: init:
179 EDARCS_DARCS_CMD=${EDARCS_DARCS_CMD}
180 EDARCS_GET_CMD=${EDARCS_GET_CMD}
181 EDARCS_UPDATE_CMD=${EDARCS_UPDATE_CMD}
182 EDARCS_OPTIONS=${EDARCS_OPTIONS}
183 EDARCS_TOP_DIR=${EDARCS_TOP_DIR}
184 EDARCS_REPOSITORY=${EDARCS_REPOSITORY}
185 EDARCS_LOCALREPO=${EDARCS_LOCALREPO}
186 EDARCS_CLEAN=${EDARCS_CLEAN}"
187
188 einfo "Fetching darcs repository ${EDARCS_REPOSITORY} into ${EDARCS_TOP_DIR}..."
189 darcs_fetch
190
191 einfo "Copying ${EDARCS_LOCALREPO} from ${EDARCS_TOP_DIR}..."
192 debug-print "Copying ${EDARCS_LOCALREPO} from ${EDARCS_TOP_DIR}..."
193
194 # probably redundant, but best to make sure
195 # Use ${WORKDIR}/${P} rather than ${S} so user can point ${S} to something inside.
196 mkdir -p "${WORKDIR}/${P}"
197
198 eshopts_push -s dotglob # get any dotfiles too.
199 rsync -rlpgo "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}"/* "${WORKDIR}/${P}"
200 eshopts_pop
201
202 einfo "Darcs repository contents are now in ${WORKDIR}/${P}"
203
204 }
205
206 EXPORT_FUNCTIONS src_unpack

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