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Revision 1.15 - (show annotations) (download)
Thu Feb 19 17:07:28 2009 UTC (5 years, 6 months ago) by scarabeus
Branch: MAIN
Changes since 1.14: +3 -2 lines
Update git.eclass. Now consumes less bandwitch. Per bug #255451. Thanks to reavertm for the patch. Also add myself as maintainer.

1 # Copyright 1999-2006 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/git.eclass,v 1.14 2008/06/16 11:22:38 zlin Exp $
4
5 ## --------------------------------------------------------------------------- #
6 # subversion.eclass author: Akinori Hattori <hattya@gentoo.org>
7 # modified for git by Donnie Berkholz <spyderous@gentoo.org>
8 # improved by Fernando J. Pereda <ferdy@gentoo.org>
9 # you should currently poke with updates Tomas Chvatal <scarabeus@gentoo.org>
10 #
11 # The git eclass is written to fetch the software sources from
12 # git repositories like the subversion eclass.
13 #
14 #
15 # Description:
16 # If you use this eclass, the ${S} is ${WORKDIR}/${P}.
17 # It is necessary to define the EGIT_REPO_URI variable at least.
18 #
19 ## --------------------------------------------------------------------------- #
20
21 inherit eutils
22
23 EGIT="git.eclass"
24
25 EXPORT_FUNCTIONS src_unpack
26
27 HOMEPAGE="http://git.or.cz/"
28 DESCRIPTION="Based on the ${ECLASS} eclass"
29
30
31 ## -- add git in DEPEND
32 #
33 DEPEND=">=dev-util/git-1.5"
34
35
36 ## -- EGIT_STORE_DIR: git sources store directory
37 #
38 EGIT_STORE_DIR="${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/git-src"
39
40
41 ## -- EGIT_FETCH_CMD: git clone command
42 #
43 EGIT_FETCH_CMD="git clone --bare --depth 1"
44
45 ## -- EGIT_UPDATE_CMD: git fetch command
46 #
47 EGIT_UPDATE_CMD="git fetch -f -u"
48
49 ## -- EGIT_DIFFSTAT_CMD: Command to get diffstat output
50 #
51 EGIT_DIFFSTAT_CMD="git diff --stat"
52
53
54 ## -- EGIT_OPTIONS:
55 #
56 # the options passed to clone and fetch
57 #
58 : ${EGIT_OPTIONS:=}
59
60
61 ## -- EGIT_REPO_URI: repository uri
62 #
63 # e.g. http://foo, git://bar
64 #
65 # supported protocols:
66 # http://
67 # https://
68 # git://
69 # git+ssh://
70 # rsync://
71 # ssh://
72 #
73 : ${EGIT_REPO_URI:=}
74
75
76 ## -- EGIT_PROJECT: project name of your ebuild
77 #
78 # git eclass will check out the git repository like:
79 #
80 # ${EGIT_STORE_DIR}/${EGIT_PROJECT}/${EGIT_REPO_URI##*/}
81 #
82 # so if you define EGIT_REPO_URI as http://git.collab.net/repo/git or
83 # http://git.collab.net/repo/git. and PN is subversion-git.
84 # it will check out like:
85 #
86 # ${EGIT_STORE_DIR}/subversion
87 #
88 # default: ${PN/-git}.
89 #
90 : ${EGIT_PROJECT:=${PN/-git}}
91
92
93 ## -- EGIT_BOOTSTRAP:
94 #
95 # bootstrap script or command like autogen.sh or etc..
96 #
97 : ${EGIT_BOOTSTRAP:=}
98
99 # @ECLASS-VARIABLE: EGIT_OFFLINE
100 # @DESCRIPTION:
101 # Set this variable to a non-empty value to disable the automatic updating of
102 # an GIT source tree. This is intended to be set outside the git source
103 # tree by users.
104 EGIT_OFFLINE="${EGIT_OFFLINE:-${ESCM_OFFLINE}}"
105
106 ## -- EGIT_PATCHES:
107 #
108 # git eclass can apply pathces in git_bootstrap().
109 # you can use regexp in this valiable like *.diff or *.patch or etc.
110 # NOTE: this patches will apply before eval EGIT_BOOTSTRAP.
111 #
112 # the process of applying the patch is:
113 # 1. just epatch it, if the patch exists in the path.
114 # 2. scan it under FILESDIR and epatch it, if the patch exists in FILESDIR.
115 # 3. die.
116 #
117 : ${EGIT_PATCHES:=}
118
119
120 ## -- EGIT_BRANCH:
121 #
122 # git eclass can fetch any branch in git_fetch().
123 # If set, it must be before 'inherit git', otherwise both EGIT_BRANCH and
124 # EGIT_TREE must be set after 'inherit git'.
125 # Defaults to 'master'
126 #
127 : ${EGIT_BRANCH:=master}
128
129
130 ## -- EGIT_TREE:
131 #
132 # git eclass can checkout any tree.
133 # Defaults to EGIT_BRANCH.
134 #
135 : ${EGIT_TREE:=${EGIT_BRANCH}}
136
137
138 ## - EGIT_REPACK:
139 #
140 # git eclass will repack objects to save disk space. However this can take a
141 # long time with VERY big repositories. If this is your case set:
142 # EGIT_REPACK=false
143 #
144 : ${EGIT_REPACK:=false}
145
146 ## - EGIT_PRUNE:
147 #
148 # git eclass can prune the local clone. This is useful if upstream rewinds and
149 # rebases branches too often. If you don't want this to happen, set:
150 # EGIT_PRUNE=false
151 #
152 : ${EGIT_PRUNE:=false}
153
154
155 ## -- git_fetch() ------------------------------------------------- #
156
157 git_fetch() {
158
159 local EGIT_CLONE_DIR
160
161 # EGIT_REPO_URI is empty.
162 [[ -z ${EGIT_REPO_URI} ]] && die "${EGIT}: EGIT_REPO_URI is empty."
163
164 # check for the protocol or pull from a local repo.
165 if [[ -z ${EGIT_REPO_URI%%:*} ]] ; then
166 case ${EGIT_REPO_URI%%:*} in
167 git*|http|https|rsync|ssh)
168 ;;
169 *)
170 die "${EGIT}: fetch from "${EGIT_REPO_URI%:*}" is not yet implemented."
171 ;;
172 esac
173 fi
174
175 if [[ ! -d ${EGIT_STORE_DIR} ]] ; then
176 debug-print "${FUNCNAME}: initial clone. creating git directory"
177 addwrite /
178 mkdir -p "${EGIT_STORE_DIR}" \
179 || die "${EGIT}: can't mkdir ${EGIT_STORE_DIR}."
180 export SANDBOX_WRITE="${SANDBOX_WRITE%%:/}"
181 fi
182
183 cd -P "${EGIT_STORE_DIR}" || die "${EGIT}: can't chdir to ${EGIT_STORE_DIR}"
184 EGIT_STORE_DIR=${PWD}
185
186 # every time
187 addwrite "${EGIT_STORE_DIR}"
188
189 [[ -z ${EGIT_REPO_URI##*/} ]] && EGIT_REPO_URI="${EGIT_REPO_URI%/}"
190 EGIT_CLONE_DIR="${EGIT_PROJECT}"
191
192 debug-print "${FUNCNAME}: EGIT_OPTIONS = \"${EGIT_OPTIONS}\""
193
194 export GIT_DIR="${EGIT_STORE_DIR}/${EGIT_CLONE_DIR}"
195
196 if [[ ! -d ${EGIT_CLONE_DIR} ]] ; then
197 # first clone
198 einfo "git clone start -->"
199 einfo " repository: ${EGIT_REPO_URI}"
200
201 ${EGIT_FETCH_CMD} ${EGIT_OPTIONS} "${EGIT_REPO_URI}" ${EGIT_PROJECT} \
202 || die "${EGIT}: can't fetch from ${EGIT_REPO_URI}."
203
204 # We use --bare cloning, so git doesn't do this for us.
205 git config remote.origin.url "${EGIT_REPO_URI}"
206 elif [[ -n ${EGIT_OFFLINE} ]] ; then
207 local oldsha1=$(git rev-parse ${EGIT_BRANCH})
208 einfo "git update offline mode -->"
209 einfo " repository: ${EGIT_REPO_URI}"
210 einfo " commit: ${oldsha1}"
211 else
212 # Git urls might change, so unconditionally set it here
213 git config remote.origin.url "${EGIT_REPO_URI}"
214
215 # fetch updates
216 einfo "git update start -->"
217 einfo " repository: ${EGIT_REPO_URI}"
218
219 local oldsha1=$(git rev-parse ${EGIT_BRANCH})
220
221 ${EGIT_UPDATE_CMD} ${EGIT_OPTIONS} origin ${EGIT_BRANCH}:${EGIT_BRANCH} \
222 || die "${EGIT}: can't update from ${EGIT_REPO_URI}."
223
224 # piping through cat is needed to avoid a stupid Git feature
225 ${EGIT_DIFFSTAT_CMD} ${oldsha1}..${EGIT_BRANCH} | cat
226 fi
227
228 einfo " local clone: ${EGIT_STORE_DIR}/${EGIT_CLONE_DIR}"
229
230 if ${EGIT_REPACK} || ${EGIT_PRUNE} ; then
231 ebegin "Garbage collecting the repository"
232 git gc $(${EGIT_PRUNE} && echo '--prune')
233 eend $?
234 fi
235
236 einfo " committish: ${EGIT_TREE}"
237
238 # export to the ${WORKDIR}
239 mkdir -p "${S}"
240 git archive --format=tar ${EGIT_TREE} | ( cd "${S}" ; tar xf - )
241
242 echo ">>> Unpacked to ${S}"
243
244 }
245
246
247 ## -- git_bootstrap() ------------------------------------------------ #
248
249 git_bootstrap() {
250
251 local patch lpatch
252
253 cd "${S}"
254
255 if [[ -n ${EGIT_PATCHES} ]] ; then
256 einfo "apply patches -->"
257
258 for patch in ${EGIT_PATCHES} ; do
259 if [[ -f ${patch} ]] ; then
260 epatch ${patch}
261 else
262 for lpatch in "${FILESDIR}"/${patch} ; do
263 if [[ -f ${lpatch} ]] ; then
264 epatch ${lpatch}
265 else
266 die "${EGIT}: ${patch} is not found"
267 fi
268 done
269 fi
270 done
271 echo
272 fi
273
274 if [[ -n ${EGIT_BOOTSTRAP} ]] ; then
275 einfo "begin bootstrap -->"
276
277 if [[ -f ${EGIT_BOOTSTRAP} ]] && [[ -x ${EGIT_BOOTSTRAP} ]] ; then
278 einfo " bootstrap with a file: ${EGIT_BOOTSTRAP}"
279 eval "./${EGIT_BOOTSTRAP}" \
280 || die "${EGIT}: can't execute EGIT_BOOTSTRAP."
281 else
282 einfo " bootstrap with commands: ${EGIT_BOOTSTRAP}"
283 eval "${EGIT_BOOTSTRAP}" \
284 || die "${EGIT}: can't eval EGIT_BOOTSTRAP."
285 fi
286 fi
287
288 }
289
290
291 ## -- git_src_unpack() ------------------------------------------------ #
292
293 git_src_unpack() {
294
295 git_fetch || die "${EGIT}: unknown problem in git_fetch()."
296 git_bootstrap || die "${EGIT}: unknown problem in git_bootstrap()."
297
298 }

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