summaryrefslogtreecommitdiff
blob: 1377b6028e007b9a20a521ea521c868a219fc531 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/git.eclass,v 1.7 2007/11/14 20:43:43 ferdy Exp $

## --------------------------------------------------------------------------- #
# subversion.eclass author: Akinori Hattori <hattya@gentoo.org>
# modified for git by Donnie Berkholz <spyderous@gentoo.org>
# improved by Fernando J. Pereda <ferdy@gentoo.org>
#
# The git eclass is written to fetch the software sources from
# git repositories like the subversion eclass.
#
#
# Description:
#   If you use this eclass, the ${S} is ${WORKDIR}/${P}.
#   It is necessary to define the EGIT_REPO_URI variable at least.
#
## --------------------------------------------------------------------------- #

inherit eutils

EGIT="git.eclass"

EXPORT_FUNCTIONS src_unpack

HOMEPAGE="http://git.or.cz/"
DESCRIPTION="Based on the ${ECLASS} eclass"


## -- add git in DEPEND
#
DEPEND=">=dev-util/git-1.5"


## -- EGIT_STORE_DIR:  git sources store directory
#
EGIT_STORE_DIR="${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/git-src"


## -- EGIT_FETCH_CMD:  git clone command
#
EGIT_FETCH_CMD="git clone --bare"

## -- EGIT_UPDATE_CMD:  git fetch command
#
EGIT_UPDATE_CMD="git fetch -f -u"

## -- EGIT_DIFFSTAT_CMD: Command to get diffstat output
#
EGIT_DIFFSTAT_CMD="git diff --stat"


## -- EGIT_OPTIONS:
#
# the options passed to clone and fetch
#
: ${EGIT_OPTIONS:=}


## -- EGIT_REPO_URI:  repository uri
#
# e.g. http://foo, git://bar
#
# supported protocols:
#   http://
#   https://
#   git://
#   git+ssh://
#   rsync://
#   ssh://
#
: ${EGIT_REPO_URI:=}


## -- EGIT_PROJECT:  project name of your ebuild
#
# git eclass will check out the git repository like:
#
#   ${EGIT_STORE_DIR}/${EGIT_PROJECT}/${EGIT_REPO_URI##*/}
#
# so if you define EGIT_REPO_URI as http://git.collab.net/repo/git or
# http://git.collab.net/repo/git. and PN is subversion-git.
# it will check out like:
#
#   ${EGIT_STORE_DIR}/subversion
#
# default: ${PN/-git}.
#
: ${EGIT_PROJECT:=${PN/-git}}


## -- EGIT_BOOTSTRAP:
#
# bootstrap script or command like autogen.sh or etc..
#
: ${EGIT_BOOTSTRAP:=}


## -- EGIT_PATCHES:
#
# git eclass can apply pathces in git_bootstrap().
# you can use regexp in this valiable like *.diff or *.patch or etc.
# NOTE: this patches will apply before eval EGIT_BOOTSTRAP.
#
# the process of applying the patch is:
#   1. just epatch it, if the patch exists in the path.
#   2. scan it under FILESDIR and epatch it, if the patch exists in FILESDIR.
#   3. die.
#
: ${EGIT_PATCHES:=}


## -- EGIT_BRANCH:
#
# git eclass can fetch any branch in git_fetch().
# Defaults to 'master'
#
: ${EGIT_BRANCH:=master}


## -- EGIT_TREE:
#
# git eclass can checkout any tree.
# Defaults to EGIT_BRANCH.
#
: ${EGIT_TREE:=${EGIT_BRANCH}}


## - EGIT_REPACK:
#
# git eclass will repack objects to save disk space. However this can take a
# long time with VERY big repositories. If this is your case set:
# EGIT_REPACK=false
#
: ${EGIT_REPACK:=false}

## - EGIT_PRUNE:
#
# git eclass can prune the local clone. This is useful if upstream rewinds and
# rebases branches too often. If you don't want this to happen, set:
# EGIT_PRUNE=false
#
: ${EGIT_PRUNE:=false}


## -- git_fetch() ------------------------------------------------- #

git_fetch() {

	local EGIT_CLONE_DIR

	# EGIT_REPO_URI is empty.
	[[ -z ${EGIT_REPO_URI} ]] && die "${EGIT}: EGIT_REPO_URI is empty."

	# check for the protocol or pull from a local repo.
	if [[ -z ${EGIT_REPO_URI%%:*} ]] ; then
		case ${EGIT_REPO_URI%%:*} in
			git*|http|https|rsync|ssh)
				;;
			*)
				die "${EGIT}: fetch from "${EGIT_REPO_URI%:*}" is not yet implemented."
				;;
		esac
	fi

	if [[ ! -d ${EGIT_STORE_DIR} ]] ; then
		debug-print "${FUNCNAME}: initial clone. creating git directory"
		addwrite /
		mkdir -p "${EGIT_STORE_DIR}" \
			|| die "${EGIT}: can't mkdir ${EGIT_STORE_DIR}."
		chmod -f o+rw "${EGIT_STORE_DIR}" \
			|| die "${EGIT}: can't chmod ${EGIT_STORE_DIR}."
		export SANDBOX_WRITE="${SANDBOX_WRITE%%:/}"
	fi

	cd -P "${EGIT_STORE_DIR}" || die "${EGIT}: can't chdir to ${EGIT_STORE_DIR}"
	EGIT_STORE_DIR=${PWD}

	# every time
	addwrite "${EGIT_STORE_DIR}"

	[[ -z ${EGIT_REPO_URI##*/} ]] && EGIT_REPO_URI="${EGIT_REPO_URI%/}"
	EGIT_CLONE_DIR="${EGIT_PROJECT}"

	debug-print "${FUNCNAME}: EGIT_OPTIONS = \"${EGIT_OPTIONS}\""

	export GIT_DIR="${EGIT_CLONE_DIR}"

	if [[ ! -d ${EGIT_CLONE_DIR} ]] ; then
		# first clone
		einfo "git clone start -->"
		einfo "   repository: ${EGIT_REPO_URI}"

		${EGIT_FETCH_CMD} ${EGIT_OPTIONS} "${EGIT_REPO_URI}" ${EGIT_PROJECT} \
			|| die "${EGIT}: can't fetch from ${EGIT_REPO_URI}."

		# We use --bare cloning, so git doesn't do this for us.
		git config remote.origin.url "${EGIT_REPO_URI}"
	else
		# Git urls might change, so unconditionally set it here
		git config remote.origin.url "${EGIT_REPO_URI}"

		# fetch updates
		einfo "git update start -->"
		einfo "   repository: ${EGIT_REPO_URI}"

		local oldsha1=$(git rev-parse ${EGIT_BRANCH})

		${EGIT_UPDATE_CMD} ${EGIT_OPTIONS} origin ${EGIT_BRANCH}:${EGIT_BRANCH} \
			|| die "${EGIT}: can't update from ${EGIT_REPO_URI}."

		# piping through cat is needed to avoid a stupid Git feature
		${EGIT_DIFFSTAT_CMD} ${oldsha1}..${EGIT_BRANCH} | cat
	fi

	einfo "   local clone: ${EGIT_STORE_DIR}/${EGIT_CLONE_DIR}"

	if ${EGIT_REPACK} || ${EGIT_PRUNE} ; then
		ebegin "Garbage collecting the repository"
		git gc $(${EGIT_PRUNE} && echo '--prune')
		eend $?
	fi

	einfo "   committish: ${EGIT_TREE}"

	# export to the ${WORKDIR}
	mkdir -p "${S}"
	git archive --format=tar ${EGIT_TREE} | ( cd "${S}" ; tar xf - )

	echo ">>> Unpacked to ${S}"

}


## -- git_bootstrap() ------------------------------------------------ #

git_bootstrap() {

	local patch lpatch

	cd "${S}"

	if [[ -n ${EGIT_PATCHES} ]] ; then
		einfo "apply patches -->"

		for patch in ${EGIT_PATCHES} ; do
			if [[ -f ${patch} ]] ; then
				epatch ${patch}
			else
				for lpatch in "${FILESDIR}"/${patch} ; do
					if [[ -f ${lpatch} ]] ; then
						epatch ${lpatch}
					else
						die "${EGIT}: ${patch} is not found"
					fi
				done
			fi
		done
		echo
	fi

	if [[ -n ${EGIT_BOOTSTRAP} ]] ; then
		einfo "begin bootstrap -->"

		if [[ -f ${EGIT_BOOTSTRAP} ]] && [[ -x ${EGIT_BOOTSTRAP} ]] ; then
			einfo "   bootstrap with a file: ${EGIT_BOOTSTRAP}"
			eval "./${EGIT_BOOTSTRAP}" \
				|| die "${EGIT}: can't execute EGIT_BOOTSTRAP."
		else
			einfo "   bootstrap with commands: ${EGIT_BOOTSTRAP}"
			eval "${EGIT_BOOTSTRAP}" \
				|| die "${EGIT}: can't eval EGIT_BOOTSTRAP."
		fi
	fi

}


## -- git_src_unpack() ------------------------------------------------ #

git_src_unpack() {

	git_fetch     || die "${EGIT}: unknown problem in git_fetch()."
	git_bootstrap || die "${EGIT}: unknown problem in git_bootstrap()."

}