1 # Copyright 1999-2020 Gentoo Authors
2 # Distributed under the terms of the GNU General Public License v2
4 # @ECLASS: git-r3.eclass
6 # Michał Górny <mgorny@gentoo.org>
7 # @SUPPORTED_EAPIS: 4 5 6 7
8 # @BLURB: Eclass for fetching and unpacking git repositories.
10 # Third generation eclass for easing maintenance of live ebuilds using
11 # git as remote repository.
15 die "Unsupported EAPI=${EAPI} (obsolete) for ${ECLASS}"
20 die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
24 EXPORT_FUNCTIONS src_unpack
26 if [[ ! ${_GIT_R3} ]]; then
30 if [[ ! ${_INHERITED_BY_GIT_2} ]]; then
31 if [[ ${EAPI:-0} != [0123456] ]]; then
32 BDEPEND=">=dev-vcs/git-1.8.2.1[curl]"
34 DEPEND=">=dev-vcs/git-1.8.2.1[curl]"
38 # @ECLASS-VARIABLE: EGIT_CLONE_TYPE
40 # Type of clone that should be used against the remote repository.
41 # This can be either of: 'mirror', 'single', 'shallow'.
43 # This is intended to be set by user in make.conf. Ebuilds are supposed
44 # to set EGIT_MIN_CLONE_TYPE if necessary instead.
46 # The 'mirror' type clones all remote branches and tags with complete
47 # history and all notes. EGIT_COMMIT can specify any commit hash.
48 # Upstream-removed branches and tags are purged from the local clone
49 # while fetching. This mode is suitable for cloning the local copy
50 # for development or hosting a local git mirror. However, clones
51 # of repositories with large diverged branches may quickly grow large.
53 # The 'single+tags' type clones the requested branch and all tags
54 # in the repository. All notes are fetched as well. EGIT_COMMIT
55 # can safely specify hashes throughout the current branch and all tags.
56 # No purging of old references is done (if you often switch branches,
57 # you may need to remove stale branches yourself). This mode is intended
58 # mostly for use with broken git servers such as Google Code that fail
59 # to fetch tags along with the branch in 'single' mode.
61 # The 'single' type clones only the requested branch or tag. Tags
62 # referencing commits throughout the branch history are fetched as well,
63 # and all notes. EGIT_COMMIT can safely specify only hashes
64 # in the current branch. No purging of old references is done (if you
65 # often switch branches, you may need to remove stale branches
66 # yourself). This mode is suitable for general use.
68 # The 'shallow' type clones only the newest commit on requested branch
69 # or tag. EGIT_COMMIT can only specify tags, and since the history is
70 # unavailable calls like 'git describe' will not reference prior tags.
71 # No purging of old references is done. This mode is intended mostly for
72 # embedded systems with limited disk space.
73 : ${EGIT_CLONE_TYPE:=single}
75 # @ECLASS-VARIABLE: EGIT_MIN_CLONE_TYPE
77 # 'Minimum' clone type supported by the ebuild. Takes same values
78 # as EGIT_CLONE_TYPE. When user sets a type that's 'lower' (that is,
79 # later on the list) than EGIT_MIN_CLONE_TYPE, the eclass uses
80 # EGIT_MIN_CLONE_TYPE instead.
82 # This variable is intended to be used by ebuilds only. Users are
83 # supposed to set EGIT_CLONE_TYPE instead.
85 # A common case is to use 'single' whenever the build system requires
86 # access to full branch history, or 'single+tags' when Google Code
87 # or a similar remote is used that does not support shallow clones
88 # and fetching tags along with commits. Please use sparingly, and to fix
89 # fatal errors rather than 'non-pretty versions'.
90 : ${EGIT_MIN_CLONE_TYPE:=shallow}
92 # @ECLASS-VARIABLE: EGIT3_STORE_DIR
94 # Storage directory for git sources.
96 # This is intended to be set by user in make.conf. Ebuilds must not set
99 # EGIT3_STORE_DIR=${DISTDIR}/git3-src
101 # @ECLASS-VARIABLE: EGIT_MIRROR_URI
104 # 'Top' URI to a local git mirror. If specified, the eclass will try
105 # to fetch from the local mirror instead of using the remote repository.
107 # The mirror needs to follow EGIT3_STORE_DIR structure. The directory
108 # created by eclass can be used for that purpose.
112 # EGIT_MIRROR_URI="git://mirror.lan/"
115 # @ECLASS-VARIABLE: EGIT_REPO_URI
118 # URIs to the repository, e.g. https://foo. If multiple URIs are
119 # provided, the eclass will consider the remaining URIs as fallbacks
120 # to try if the first URI does not work. For supported URI syntaxes,
121 # read the manpage for git-clone(1).
123 # URIs should be using https:// whenever possible. http:// and git://
124 # URIs are completely unsecured and their use (even if only as
125 # a fallback) renders the ebuild completely vulnerable to MITM attacks.
127 # Can be a whitespace-separated list or an array.
131 # EGIT_REPO_URI="https://a/b.git https://c/d.git"
134 # @ECLASS-VARIABLE: EVCS_OFFLINE
137 # If non-empty, this variable prevents any online operations.
139 # @ECLASS-VARIABLE: EVCS_UMASK
142 # Set this variable to a custom umask. This is intended to be set by
143 # users. By setting this to something like 002, it can make life easier
144 # for people who do development as non-root (but are in the portage
145 # group), and then switch over to building with FEATURES=userpriv.
146 # Or vice-versa. Shouldn't be a security issue here as anyone who has
147 # portage group write access already can screw the system over in more
150 # @ECLASS-VARIABLE: EGIT_BRANCH
153 # The branch name to check out. If unset, the upstream default (HEAD)
156 # @ECLASS-VARIABLE: EGIT_COMMIT
159 # The tag name or commit identifier to check out. If unset, newest
160 # commit from the branch will be used. Note that if set to a commit
161 # not on HEAD branch, EGIT_BRANCH needs to be set to a branch on which
162 # the commit is available.
164 # @ECLASS-VARIABLE: EGIT_COMMIT_DATE
167 # Attempt to check out the repository state for the specified timestamp.
168 # The date should be in format understood by 'git rev-list'. The commits
169 # on EGIT_BRANCH will be considered.
171 # The eclass will select the last commit with commit date preceding
172 # the specified date. When merge commits are found, only first parents
173 # will be considered in order to avoid switching into external branches
174 # (assuming that merges are done correctly). In other words, each merge
175 # will be considered alike a single commit with date corresponding
176 # to the merge commit date.
178 # @ECLASS-VARIABLE: EGIT_CHECKOUT_DIR
180 # The directory to check the git sources out to.
182 # EGIT_CHECKOUT_DIR=${WORKDIR}/${P}
184 # @ECLASS-VARIABLE: EGIT_SUBMODULES
187 # An array of inclusive and exclusive wildcards on submodule names,
188 # stating which submodules are fetched and checked out. Exclusions
189 # start with '-', and exclude previously matched submodules.
191 # If unset, all submodules are enabled. Empty list disables all
192 # submodules. In order to use an exclude-only list, start the array
195 # Remember that wildcards need to be quoted in order to prevent filename
200 # # Disable all submodules
203 # # Include only foo and bar
204 # EGIT_SUBMODULES=( foo bar )
206 # # Use all submodules except for test-* but include test-lib
207 # EGIT_SUBMODULES=( '*' '-test-*' test-lib )
210 # @FUNCTION: _git-r3_env_setup
213 # Set the eclass variables as necessary for operation. This can involve
214 # setting EGIT_* to defaults or ${PN}_LIVE_* variables.
215 _git-r3_env_setup() {
216 debug-print-function ${FUNCNAME} "$@"
218 # check the clone type
219 case "${EGIT_CLONE_TYPE}" in
220 mirror|single+tags|single|shallow)
223 die "Invalid EGIT_CLONE_TYPE=${EGIT_CLONE_TYPE}"
225 case "${EGIT_MIN_CLONE_TYPE}" in
229 if [[ ${EGIT_CLONE_TYPE} == shallow ]]; then
230 einfo "git-r3: ebuild needs to be cloned in 'single' mode, adjusting"
231 EGIT_CLONE_TYPE=single
235 if [[ ${EGIT_CLONE_TYPE} == shallow || ${EGIT_CLONE_TYPE} == single ]]; then
236 einfo "git-r3: ebuild needs to be cloned in 'single+tags' mode, adjusting"
237 EGIT_CLONE_TYPE=single+tags
241 if [[ ${EGIT_CLONE_TYPE} != mirror ]]; then
242 einfo "git-r3: ebuild needs to be cloned in 'mirror' mode, adjusting"
243 EGIT_CLONE_TYPE=mirror
247 die "Invalid EGIT_MIN_CLONE_TYPE=${EGIT_MIN_CLONE_TYPE}"
250 if [[ ${EGIT_SUBMODULES[@]+1} && $(declare -p EGIT_SUBMODULES) != "declare -a"* ]]
252 die 'EGIT_SUBMODULES must be an array.'
257 [[ ${esc_pn} == [0-9]* ]] && esc_pn=_${esc_pn}
259 # note: deprecated, use EGIT_OVERRIDE_* instead
260 livevar=${esc_pn}_LIVE_REPO
261 EGIT_REPO_URI=${!livevar-${EGIT_REPO_URI}}
263 && ewarn "Using ${livevar}, no support will be provided"
265 livevar=${esc_pn}_LIVE_BRANCH
266 EGIT_BRANCH=${!livevar-${EGIT_BRANCH}}
268 && ewarn "Using ${livevar}, no support will be provided"
270 livevar=${esc_pn}_LIVE_COMMIT
271 EGIT_COMMIT=${!livevar-${EGIT_COMMIT}}
273 && ewarn "Using ${livevar}, no support will be provided"
275 livevar=${esc_pn}_LIVE_COMMIT_DATE
276 EGIT_COMMIT_DATE=${!livevar-${EGIT_COMMIT_DATE}}
278 && ewarn "Using ${livevar}, no support will be provided"
280 if [[ ${EGIT_COMMIT} && ${EGIT_COMMIT_DATE} ]]; then
281 die "EGIT_COMMIT and EGIT_COMMIT_DATE can not be specified simultaneously"
284 # Migration helpers. Remove them when git-2 is removed.
286 if [[ ${EGIT_SOURCEDIR} ]]; then
287 eerror "EGIT_SOURCEDIR has been replaced by EGIT_CHECKOUT_DIR. While updating"
288 eerror "your ebuild, please check whether the variable is necessary at all"
289 eerror "since the default has been changed from \${S} to \${WORKDIR}/\${P}."
290 eerror "Therefore, proper setting of S may be sufficient."
291 die "EGIT_SOURCEDIR has been replaced by EGIT_CHECKOUT_DIR."
294 if [[ ${EGIT_MASTER} ]]; then
295 eerror "EGIT_MASTER has been removed. Instead, the upstream default (HEAD)"
296 eerror "is used by the eclass. Please remove the assignment or use EGIT_BRANCH"
297 eerror "as necessary."
298 die "EGIT_MASTER has been removed."
301 if [[ ${EGIT_HAS_SUBMODULES} ]]; then
302 eerror "EGIT_HAS_SUBMODULES has been removed. The eclass no longer needs"
303 eerror "to switch the clone type in order to support submodules and therefore"
304 eerror "submodules are detected and fetched automatically. If you need to"
305 eerror "disable or filter submodules, see EGIT_SUBMODULES."
306 die "EGIT_HAS_SUBMODULES is no longer necessary."
309 if [[ ${EGIT_PROJECT} ]]; then
310 eerror "EGIT_PROJECT has been removed. Instead, the eclass determines"
311 eerror "the local clone path using path in canonical EGIT_REPO_URI."
312 eerror "If the current algorithm causes issues for you, please report a bug."
313 die "EGIT_PROJECT is no longer necessary."
316 if [[ ${EGIT_BOOTSTRAP} ]]; then
317 eerror "EGIT_BOOTSTRAP has been removed. Please create proper src_prepare()"
319 die "EGIT_BOOTSTRAP has been removed."
322 if [[ ${EGIT_NOUNPACK} ]]; then
323 eerror "EGIT_NOUNPACK has been removed. The eclass no longer calls default"
324 eerror "unpack function. If necessary, please declare proper src_unpack()."
325 die "EGIT_NOUNPACK has been removed."
329 # @FUNCTION: _git-r3_set_gitdir
333 # Obtain the local repository path and set it as GIT_DIR. Creates
334 # a new repository if necessary.
336 # <repo-uri> may be used to compose the path. It should therefore be
337 # a canonical URI to the repository.
338 _git-r3_set_gitdir() {
339 debug-print-function ${FUNCNAME} "$@"
341 local repo_name=${1#*://*/}
343 # strip the trailing slash
344 repo_name=${repo_name%/}
346 # strip common prefixes to make paths more likely to match
347 # e.g. git://X/Y.git vs https://X/git/Y.git
348 # (but just one of the prefixes)
349 case "${repo_name}" in
350 # gnome.org... who else?
351 browse/*) repo_name=${repo_name#browse/};;
352 # cgit can proxy requests to git
353 cgit/*) repo_name=${repo_name#cgit/};;
355 git/*) repo_name=${repo_name#git/};;
357 gitroot/*) repo_name=${repo_name#gitroot/};;
359 p/*) repo_name=${repo_name#p/};;
361 pub/scm/*) repo_name=${repo_name#pub/scm/};;
363 # ensure a .git suffix, same reason
364 repo_name=${repo_name%.git}.git
365 # now replace all the slashes
366 repo_name=${repo_name//\//_}
368 local distdir=${PORTAGE_ACTUAL_DISTDIR:-${DISTDIR}}
369 : ${EGIT3_STORE_DIR:=${distdir}/git3-src}
371 GIT_DIR=${EGIT3_STORE_DIR}/${repo_name}
373 if [[ ! -d ${EGIT3_STORE_DIR} && ! ${EVCS_OFFLINE} ]]; then
376 mkdir -p "${EGIT3_STORE_DIR}"
377 ) || die "Unable to create ${EGIT3_STORE_DIR}"
380 addwrite "${EGIT3_STORE_DIR}"
381 if [[ ! -d ${GIT_DIR} ]]; then
382 if [[ ${EVCS_OFFLINE} ]]; then
383 eerror "A clone of the following repository is required to proceed:"
385 eerror "However, networking activity has been disabled using EVCS_OFFLINE and there"
386 eerror "is no local clone available."
387 die "No local clone of ${1}. Unable to proceed with EVCS_OFFLINE."
391 if [[ ${EVCS_UMASK} ]]; then
393 umask "${EVCS_UMASK}" || die "Bad options to umask: ${EVCS_UMASK}"
395 mkdir "${GIT_DIR}" || die
396 git init --bare || die
397 if [[ ${saved_umask} ]]; then
398 umask "${saved_umask}" || die
403 # @FUNCTION: _git-r3_set_submodules
404 # @USAGE: <parent-path> <file-contents>
407 # Parse .gitmodules contents passed as <file-contents>
408 # as in "$(cat .gitmodules)"). Composes a 'submodules' array that
409 # contains in order (name, URL, path) for each submodule.
411 # <parent-path> specifies path to current submodule (empty if top repo),
412 # and is used to support recursively specifying submodules. The path
413 # must include a trailing slash if it's not empty.
414 _git-r3_set_submodules() {
415 debug-print-function ${FUNCNAME} "$@"
417 local parent_path=${1}
419 [[ -z ${parent_path} || ${parent_path} == */ ]] || die
421 # ( name url path ... )
426 # submodule.<path>.path=<path>
427 # submodule.<path>.url=<url>
428 [[ ${l} == submodule.*.url=* ]] || continue
431 local subname=${l%%.url=*}
433 # filter out on EGIT_SUBMODULES
434 if declare -p EGIT_SUBMODULES &>/dev/null; then
436 for p in "${EGIT_SUBMODULES[@]}"; do
437 if [[ ${p} == -* ]]; then
444 [[ ${parent_path}${subname} == ${p} ]] && res=${l_res}
447 if [[ ! ${res} ]]; then
448 einfo "Skipping submodule ${parent_path}${subname}"
451 einfo "Using submodule ${parent_path}${subname}"
455 # skip modules that have 'update = none', bug #487262.
456 local upd=$(echo "${data}" | git config -f /dev/fd/0 \
457 submodule."${subname}".update)
458 [[ ${upd} == none ]] && continue
460 # https://github.com/git/git/blob/master/refs.c#L31
461 # we are more restrictive than git itself but that should not
462 # cause any issues, #572312, #606950
463 # TODO: check escaped names for collisions
464 local enc_subname=${subname//[^a-zA-Z0-9-]/_}
468 "$(echo "${data}" | git config -f /dev/fd/0 \
469 submodule."${subname}".url || die)"
470 "$(echo "${data}" | git config -f /dev/fd/0 \
471 submodule."${subname}".path || die)"
473 done < <(echo "${data}" | git config -f /dev/fd/0 -l || die)
476 # @FUNCTION: _git-r3_set_subrepos
477 # @USAGE: <submodule-uri> <parent-repo-uri>...
480 # Create 'subrepos' array containing absolute (canonical) submodule URIs
481 # for the given <submodule-uri>. If the URI is relative, URIs will be
482 # constructed using all <parent-repo-uri>s. Otherwise, this single URI
483 # will be placed in the array.
484 _git-r3_set_subrepos() {
485 debug-print-function ${FUNCNAME} "$@"
488 subrepos=( "${@:2}" )
490 if [[ ${suburl} == ./* || ${suburl} == ../* ]]; then
491 # drop all possible trailing slashes for consistency
492 subrepos=( "${subrepos[@]%%/}" )
495 if [[ ${suburl} == ./* ]]; then
497 elif [[ ${suburl} == ../* ]]; then
500 # XXX: correctness checking
502 # drop the last path component
503 subrepos=( "${subrepos[@]%/*}" )
504 # and then the trailing slashes, again
505 subrepos=( "${subrepos[@]%%/}" )
511 # append the preprocessed path to the preprocessed URIs
512 subrepos=( "${subrepos[@]/%//${suburl}}")
514 subrepos=( "${suburl}" )
519 # @FUNCTION: _git-r3_is_local_repo
523 # Determine whether the given URI specifies a local (on-disk)
525 _git-r3_is_local_repo() {
526 debug-print-function ${FUNCNAME} "$@"
530 [[ ${uri} == file://* || ${uri} == /* ]]
533 # @FUNCTION: git-r3_fetch
534 # @USAGE: [<repo-uri> [<remote-ref> [<local-id> [<commit-date>]]]]
536 # Fetch new commits to the local clone of repository.
538 # <repo-uri> specifies the repository URIs to fetch from, as a space-
539 # -separated list. The first URI will be used as repository group
540 # identifier and therefore must be used consistently. When not
541 # specified, defaults to ${EGIT_REPO_URI}.
543 # <remote-ref> specifies the remote ref or commit id to fetch.
544 # It is preferred to use 'refs/heads/<branch-name>' for branches
545 # and 'refs/tags/<tag-name>' for tags. Other options are 'HEAD'
546 # for upstream default branch and hexadecimal commit SHA1. Defaults
547 # to the first of EGIT_COMMIT, EGIT_BRANCH or literal 'HEAD' that
548 # is set to a non-null value.
550 # <local-id> specifies the local branch identifier that will be used to
551 # locally store the fetch result. It should be unique to multiple
552 # fetches within the repository that can be performed at the same time
553 # (including parallel merges). It defaults to ${CATEGORY}/${PN}/${SLOT%/*}.
554 # This default should be fine unless you are fetching multiple trees
555 # from the same repository in the same ebuild.
557 # <commit-date> requests attempting to use repository state as of specific
558 # date. For more details, see EGIT_COMMIT_DATE.
560 # The fetch operation will affect the EGIT_STORE only. It will not touch
561 # the working copy, nor export any environment variables.
562 # If the repository contains submodules, they will be fetched
565 debug-print-function ${FUNCNAME} "$@"
567 # disable password prompts, https://bugs.gentoo.org/701276
568 local -x GIT_TERMINAL_PROMPT=0
570 # process repos first since we create repo_name from it
574 elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
575 repos=( "${EGIT_REPO_URI[@]}" )
577 repos=( ${EGIT_REPO_URI} )
580 [[ ${repos[@]} ]] || die "No URI provided and EGIT_REPO_URI unset"
583 for r in "${repos[@]}"; do
584 if [[ ${r} == git:* || ${r} == http:* ]]; then
585 ewarn "git-r3: ${r%%:*} protocol is completely unsecure and may render the ebuild"
586 ewarn "easily susceptible to MITM attacks (even if used only as fallback). Please"
587 ewarn "use https instead."
593 _git-r3_set_gitdir "${repos[0]}"
595 einfo "Repository id: ${GIT_DIR##*/}"
597 # prepend the local mirror if applicable
598 if [[ ${EGIT_MIRROR_URI} ]]; then
600 "${EGIT_MIRROR_URI%/}/${GIT_DIR##*/}"
605 # get the default values for the common variables and override them
606 local branch_name=${EGIT_BRANCH}
607 local commit_id=${2:-${EGIT_COMMIT}}
608 local commit_date=${4:-${EGIT_COMMIT_DATE}}
610 # support new override API for EAPI 6+
611 if ! has "${EAPI:-0}" 0 1 2 3 4 5; then
612 # get the name and do some more processing:
613 # 1) kill .git suffix,
614 # 2) underscore (remaining) non-variable characters,
615 # 3) add preceding underscore if it starts with a digit,
617 local override_name=${GIT_DIR##*/}
618 override_name=${override_name%.git}
619 override_name=${override_name//[^a-zA-Z0-9_]/_}
620 override_name=${override_name^^}
626 COMMIT_DATE:commit_date
629 local localvar livevar live_warn= override_vars=()
630 for localvar in "${varmap[@]}"; do
631 livevar=EGIT_OVERRIDE_${localvar%:*}_${override_name}
632 localvar=${localvar#*:}
633 override_vars+=( "${livevar}" )
635 if [[ -n ${!livevar} ]]; then
636 [[ ${localvar} == repos ]] && repos=()
638 ewarn "Using ${livevar}=${!livevar}"
639 declare "${localvar}=${!livevar}"
643 if [[ ${live_warn} ]]; then
644 ewarn "No support will be provided."
646 einfo "To override fetched repository properties, use:"
648 for x in "${override_vars[@]}"; do
655 # set final variables after applying overrides
656 local branch=${branch_name:+refs/heads/${branch_name}}
657 local remote_ref=${commit_id:-${branch:-HEAD}}
658 local local_id=${3:-${CATEGORY}/${PN}/${SLOT%/*}}
659 local local_ref=refs/git-r3/${local_id}/__main__
661 # try to fetch from the remote
662 local success saved_umask
663 if [[ ${EVCS_UMASK} ]]; then
665 umask "${EVCS_UMASK}" || die "Bad options to umask: ${EVCS_UMASK}"
667 for r in "${repos[@]}"; do
668 if [[ ! ${EVCS_OFFLINE} ]]; then
669 einfo "Fetching ${r} ..."
671 local fetch_command=( git fetch "${r}" )
672 local clone_type=${EGIT_CLONE_TYPE}
674 if [[ ${clone_type} == mirror ]]; then
677 # mirror the remote branches as local branches
678 "+refs/heads/*:refs/heads/*"
679 # pull tags explicitly in order to prune them properly
680 "+refs/tags/*:refs/tags/*"
681 # notes in case something needs them
682 "+refs/notes/*:refs/notes/*"
683 # and HEAD in case we need the default branch
684 # (we keep it in refs/git-r3 since otherwise --prune interferes)
685 "+HEAD:refs/git-r3/HEAD"
687 else # single or shallow
688 local fetch_l fetch_r
690 if [[ ${remote_ref} == HEAD ]]; then
693 elif [[ ${remote_ref} == refs/* ]]; then
694 # regular branch, tag or some other explicit ref
695 fetch_l=${remote_ref}
697 # tag or commit id...
698 # let ls-remote figure it out
699 local tagref=$(git ls-remote "${r}" "refs/tags/${remote_ref}")
701 # if it was a tag, ls-remote obtained a hash
702 if [[ ${tagref} ]]; then
704 fetch_l=refs/tags/${remote_ref}
707 # so we need to fetch the whole branch
708 if [[ ${branch} ]]; then
714 # fetching by commit in shallow mode? can't do.
715 if [[ ${clone_type} == shallow ]]; then
721 # checkout by date does not make sense in shallow mode
722 if [[ ${commit_date} && ${clone_type} == shallow ]]; then
726 if [[ ${fetch_l} == HEAD ]]; then
727 fetch_r=refs/git-r3/HEAD
733 "+${fetch_l}:${fetch_r}"
736 if [[ ${clone_type} == single+tags ]]; then
738 # pull tags explicitly as requested
739 "+refs/tags/*:refs/tags/*"
744 if [[ ${clone_type} == shallow ]]; then
745 if _git-r3_is_local_repo; then
746 # '--depth 1' causes sandbox violations with local repos
749 elif [[ ! $(git rev-parse --quiet --verify "${fetch_r}") ]]
751 # use '--depth 1' when fetching a new branch
752 fetch_command+=( --depth 1 )
754 else # non-shallow mode
755 if [[ -f ${GIT_DIR}/shallow ]]; then
756 fetch_command+=( --unshallow )
760 set -- "${fetch_command[@]}"
764 if [[ ${clone_type} == mirror || ${fetch_l} == HEAD ]]; then
765 # update our HEAD to match our remote HEAD ref
766 git symbolic-ref HEAD refs/git-r3/HEAD \
767 || die "Unable to update HEAD"
771 # now let's see what the user wants from us
772 if [[ ${commit_date} ]]; then
773 local dated_commit_id=$(
774 git rev-list --first-parent --before="${commit_date}" \
777 if [[ ${?} -ne 0 ]]; then
778 die "Listing ${remote_ref} failed (wrong ref?)."
779 elif [[ ! ${dated_commit_id} ]]; then
780 die "Unable to find commit for date ${commit_date}."
782 set -- git update-ref --no-deref "${local_ref}" "${dated_commit_id}"
785 local full_remote_ref=$(
786 git rev-parse --verify --symbolic-full-name "${remote_ref}"
789 if [[ ${full_remote_ref} ]]; then
790 # when we are given a ref, create a symbolic ref
791 # so that we preserve the actual argument
792 set -- git symbolic-ref "${local_ref}" "${full_remote_ref}"
794 # otherwise, we were likely given a commit id
795 set -- git update-ref --no-deref "${local_ref}" "${remote_ref}"
801 if [[ ${EVCS_OFFLINE} ]]; then
802 eerror "A clone of the following repository is required to proceed:"
804 eerror "However, networking activity has been disabled using EVCS_OFFLINE and the local"
805 eerror "clone does not have requested ref:"
806 eerror " ${remote_ref}"
807 die "Local clone of ${r} does not have requested ref: ${remote_ref}. Unable to proceed with EVCS_OFFLINE."
809 die "Referencing ${remote_ref} failed (wrong ref?)."
816 if [[ ${saved_umask} ]]; then
817 umask "${saved_umask}" || die
819 [[ ${success} ]] || die "Unable to fetch from any of EGIT_REPO_URI"
821 # submodules can reference commits in any branch
822 # always use the 'mirror' mode to accomodate that, bug #503332
823 local EGIT_CLONE_TYPE=mirror
825 # recursively fetch submodules
826 if git cat-file -e "${local_ref}":.gitmodules &>/dev/null; then
828 _git-r3_set_submodules "${_GIT_SUBMODULE_PATH}" \
829 "$(git cat-file -p "${local_ref}":.gitmodules || die)"
831 while [[ ${submodules[@]} ]]; do
832 local subname=${submodules[0]}
833 local url=${submodules[1]}
834 local path=${submodules[2]}
836 # use only submodules for which path does exist
837 # (this is in par with 'git submodule'), bug #551100
838 # note: git cat-file does not work for submodules
839 if [[ $(git ls-tree -d "${local_ref}" "${path}") ]]
841 local commit=$(git rev-parse "${local_ref}:${path}" || die)
843 if [[ ! ${commit} ]]; then
844 die "Unable to get commit id for submodule ${subname}"
848 _git-r3_set_subrepos "${url}" "${repos[@]}"
850 _GIT_SUBMODULE_PATH=${_GIT_SUBMODULE_PATH}${path}/ \
851 git-r3_fetch "${subrepos[*]}" "${commit}" \
852 "${local_id}/${subname}" ""
855 submodules=( "${submodules[@]:3}" ) # shift
860 # @FUNCTION: git-r3_checkout
861 # @USAGE: [<repo-uri> [<checkout-path> [<local-id> [<checkout-paths>...]]]]
863 # Check the previously fetched tree to the working copy.
865 # <repo-uri> specifies the repository URIs, as a space-separated list.
866 # The first URI will be used as repository group identifier
867 # and therefore must be used consistently with git-r3_fetch.
868 # The remaining URIs are not used and therefore may be omitted.
869 # When not specified, defaults to ${EGIT_REPO_URI}.
871 # <checkout-path> specifies the path to place the checkout. It defaults
872 # to ${EGIT_CHECKOUT_DIR} if set, otherwise to ${WORKDIR}/${P}.
874 # <local-id> needs to specify the local identifier that was used
875 # for respective git-r3_fetch.
877 # If <checkout-paths> are specified, then the specified paths are passed
878 # to 'git checkout' to effect a partial checkout. Please note that such
879 # checkout will not cause the repository to switch branches,
880 # and submodules will be skipped at the moment. The submodules matching
881 # those paths might be checked out in a future version of the eclass.
883 # The checkout operation will write to the working copy, and export
884 # the repository state into the environment. If the repository contains
885 # submodules, they will be checked out recursively.
887 debug-print-function ${FUNCNAME} "$@"
892 elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
893 repos=( "${EGIT_REPO_URI[@]}" )
895 repos=( ${EGIT_REPO_URI} )
898 local out_dir=${2:-${EGIT_CHECKOUT_DIR:-${WORKDIR}/${P}}}
899 local local_id=${3:-${CATEGORY}/${PN}/${SLOT%/*}}
900 local checkout_paths=( "${@:4}" )
903 _git-r3_set_gitdir "${repos[0]}"
905 einfo "Checking out ${repos[0]} to ${out_dir} ..."
907 if ! git cat-file -e refs/git-r3/"${local_id}"/__main__; then
908 die "Logic error: no local clone of ${repos[0]}. git-r3_fetch not used?"
911 git symbolic-ref --quiet refs/git-r3/"${local_id}"/__main__
913 local new_commit_id=$(
914 git rev-parse --verify refs/git-r3/"${local_id}"/__main__
917 git-r3_sub_checkout() {
918 local orig_repo=${GIT_DIR}
919 local -x GIT_DIR=${out_dir}/.git
920 local -x GIT_WORK_TREE=${out_dir}
922 mkdir -p "${out_dir}" || die
924 # use git init+fetch instead of clone since the latter doesn't like
925 # non-empty directories.
927 git init --quiet || die
928 # setup 'alternates' to avoid copying objects
929 echo "${orig_repo}/objects" > "${GIT_DIR}"/objects/info/alternates || die
931 cp -R "${orig_repo}"/refs/* "${GIT_DIR}"/refs/ || die
932 if [[ -f ${orig_repo}/packed-refs ]]; then
933 cp "${orig_repo}"/packed-refs "${GIT_DIR}"/packed-refs || die
936 # (no need to copy HEAD, we will set it via checkout)
938 if [[ -f ${orig_repo}/shallow ]]; then
939 cp "${orig_repo}"/shallow "${GIT_DIR}"/ || die
942 set -- git checkout --quiet
943 if [[ ${remote_ref} ]]; then
944 set -- "${@}" "${remote_ref#refs/heads/}"
946 set -- "${@}" "${new_commit_id}"
948 if [[ ${checkout_paths[@]} ]]; then
949 set -- "${@}" -- "${checkout_paths[@]}"
952 "${@}" || die "git checkout ${remote_ref:-${new_commit_id}} failed"
955 unset -f git-r3_sub_checkout
957 local old_commit_id=$(
958 git rev-parse --quiet --verify refs/git-r3/"${local_id}"/__old__
960 if [[ ! ${old_commit_id} ]]; then
961 echo "GIT NEW branch -->"
962 echo " repository: ${repos[0]}"
963 echo " at the commit: ${new_commit_id}"
965 # diff against previous revision
966 echo "GIT update -->"
967 echo " repository: ${repos[0]}"
968 # write out message based on the revisions
969 if [[ "${old_commit_id}" != "${new_commit_id}" ]]; then
970 echo " updating from commit: ${old_commit_id}"
971 echo " to commit: ${new_commit_id}"
973 set -- git --no-pager diff --stat \
974 ${old_commit_id}..${new_commit_id}
975 if [[ ${checkout_paths[@]} ]]; then
976 set -- "${@}" -- "${checkout_paths[@]}"
980 echo " at the commit: ${new_commit_id}"
983 git update-ref --no-deref refs/git-r3/"${local_id}"/{__old__,__main__} || die
985 # recursively checkout submodules
986 if [[ -f ${out_dir}/.gitmodules && ! ${checkout_paths} ]]; then
988 _git-r3_set_submodules "${_GIT_SUBMODULE_PATH}" \
989 "$(<"${out_dir}"/.gitmodules)"
991 while [[ ${submodules[@]} ]]; do
992 local subname=${submodules[0]}
993 local url=${submodules[1]}
994 local path=${submodules[2]}
996 # use only submodules for which path does exist
997 # (this is in par with 'git submodule'), bug #551100
998 if [[ -d ${out_dir}/${path} ]]; then
1000 _git-r3_set_subrepos "${url}" "${repos[@]}"
1002 _GIT_SUBMODULE_PATH=${_GIT_SUBMODULE_PATH}${path}/ \
1003 git-r3_checkout "${subrepos[*]}" "${out_dir}/${path}" \
1004 "${local_id}/${subname}"
1007 submodules=( "${submodules[@]:3}" ) # shift
1011 # keep this *after* submodules
1012 export EGIT_DIR=${GIT_DIR}
1013 export EGIT_VERSION=${new_commit_id}
1016 # @FUNCTION: git-r3_peek_remote_ref
1017 # @USAGE: [<repo-uri> [<remote-ref>]]
1019 # Peek the reference in the remote repository and print the matching
1020 # (newest) commit SHA1.
1022 # <repo-uri> specifies the repository URIs to fetch from, as a space-
1023 # -separated list. When not specified, defaults to ${EGIT_REPO_URI}.
1025 # <remote-ref> specifies the remote ref to peek. It is preferred to use
1026 # 'refs/heads/<branch-name>' for branches and 'refs/tags/<tag-name>'
1027 # for tags. Alternatively, 'HEAD' may be used for upstream default
1028 # branch. Defaults to the first of EGIT_COMMIT, EGIT_BRANCH or literal
1029 # 'HEAD' that is set to a non-null value.
1031 # The operation will be done purely on the remote, without using local
1032 # storage. If commit SHA1 is provided as <remote-ref>, the function will
1033 # fail due to limitations of git protocol.
1035 # On success, the function returns 0 and writes hexadecimal commit SHA1
1036 # to stdout. On failure, the function returns 1.
1037 git-r3_peek_remote_ref() {
1038 debug-print-function ${FUNCNAME} "$@"
1043 elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
1044 repos=( "${EGIT_REPO_URI[@]}" )
1046 repos=( ${EGIT_REPO_URI} )
1049 local branch=${EGIT_BRANCH:+refs/heads/${EGIT_BRANCH}}
1050 local remote_ref=${2:-${EGIT_COMMIT:-${branch:-HEAD}}}
1052 [[ ${repos[@]} ]] || die "No URI provided and EGIT_REPO_URI unset"
1055 for r in "${repos[@]}"; do
1056 einfo "Peeking ${remote_ref} on ${r} ..." >&2
1059 if [[ ${remote_ref} == refs/* || ${remote_ref} == HEAD ]]
1061 lookup_ref=${remote_ref}
1063 # ls-remote by commit is going to fail anyway,
1064 # so we may as well pass refs/tags/ABCDEF...
1065 lookup_ref=refs/tags/${remote_ref}
1068 # split on whitespace
1070 $(git ls-remote "${r}" "${lookup_ref}")
1073 if [[ ${ref[0]} ]]; then
1082 git-r3_src_fetch() {
1083 debug-print-function ${FUNCNAME} "$@"
1085 if [[ ! ${EGIT3_STORE_DIR} && ${EGIT_STORE_DIR} ]]; then
1086 ewarn "You have set EGIT_STORE_DIR but not EGIT3_STORE_DIR. Please consider"
1087 ewarn "setting EGIT3_STORE_DIR for git-r3.eclass. It is recommended to use"
1088 ewarn "a different directory than EGIT_STORE_DIR to ease removing old clones"
1089 ewarn "when git-2 eclass becomes deprecated."
1096 git-r3_src_unpack() {
1097 debug-print-function ${FUNCNAME} "$@"
1104 # https://bugs.gentoo.org/show_bug.cgi?id=482666
1105 git-r3_pkg_needrebuild() {
1106 debug-print-function ${FUNCNAME} "$@"
1108 local new_commit_id=$(git-r3_peek_remote_ref)
1109 [[ ${new_commit_id} && ${EGIT_VERSION} ]] || die "Lookup failed"
1111 if [[ ${EGIT_VERSION} != ${new_commit_id} ]]; then
1112 einfo "Update from ${EGIT_VERSION} to ${new_commit_id}"
1114 einfo "Local and remote at ${EGIT_VERSION}"
1117 [[ ${EGIT_VERSION} != ${new_commit_id} ]]
1120 # 'export' locally until this gets into EAPI
1121 pkg_needrebuild() { git-r3_pkg_needrebuild; }