1 # Copyright 1999-2017 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
4 # @ECLASS: git-r3.eclass
6 # Michał Górny <mgorny@gentoo.org>
7 # @BLURB: Eclass for fetching and unpacking git repositories.
9 # Third generation eclass for easing maintenance of live ebuilds using
10 # git as remote repository.
16 die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
20 EXPORT_FUNCTIONS src_unpack
22 if [[ ! ${_GIT_R3} ]]; then
24 if [[ ! ${_INHERITED_BY_GIT_2} ]]; then
25 DEPEND=">=dev-vcs/git-1.8.2.1"
28 # @ECLASS-VARIABLE: EGIT_CLONE_TYPE
30 # Type of clone that should be used against the remote repository.
31 # This can be either of: 'mirror', 'single', 'shallow'.
33 # This is intended to be set by user in make.conf. Ebuilds are supposed
34 # to set EGIT_MIN_CLONE_TYPE if necessary instead.
36 # The 'mirror' type clones all remote branches and tags with complete
37 # history and all notes. EGIT_COMMIT can specify any commit hash.
38 # Upstream-removed branches and tags are purged from the local clone
39 # while fetching. This mode is suitable for cloning the local copy
40 # for development or hosting a local git mirror. However, clones
41 # of repositories with large diverged branches may quickly grow large.
43 # The 'single+tags' type clones the requested branch and all tags
44 # in the repository. All notes are fetched as well. EGIT_COMMIT
45 # can safely specify hashes throughout the current branch and all tags.
46 # No purging of old references is done (if you often switch branches,
47 # you may need to remove stale branches yourself). This mode is intended
48 # mostly for use with broken git servers such as Google Code that fail
49 # to fetch tags along with the branch in 'single' mode.
51 # The 'single' type clones only the requested branch or tag. Tags
52 # referencing commits throughout the branch history are fetched as well,
53 # and all notes. EGIT_COMMIT can safely specify only hashes
54 # in the current branch. No purging of old references is done (if you
55 # often switch branches, you may need to remove stale branches
56 # yourself). This mode is suitable for general use.
58 # The 'shallow' type clones only the newest commit on requested branch
59 # or tag. EGIT_COMMIT can only specify tags, and since the history is
60 # unavailable calls like 'git describe' will not reference prior tags.
61 # No purging of old references is done. This mode is intended mostly for
62 # embedded systems with limited disk space.
63 : ${EGIT_CLONE_TYPE:=single}
65 # @ECLASS-VARIABLE: EGIT_MIN_CLONE_TYPE
67 # 'Minimum' clone type supported by the ebuild. Takes same values
68 # as EGIT_CLONE_TYPE. When user sets a type that's 'lower' (that is,
69 # later on the list) than EGIT_MIN_CLONE_TYPE, the eclass uses
70 # EGIT_MIN_CLONE_TYPE instead.
72 # This variable is intended to be used by ebuilds only. Users are
73 # supposed to set EGIT_CLONE_TYPE instead.
75 # A common case is to use 'single' whenever the build system requires
76 # access to full branch history, or 'single+tags' when Google Code
77 # or a similar remote is used that does not support shallow clones
78 # and fetching tags along with commits. Please use sparingly, and to fix
79 # fatal errors rather than 'non-pretty versions'.
80 : ${EGIT_MIN_CLONE_TYPE:=shallow}
82 # @ECLASS-VARIABLE: EGIT3_STORE_DIR
84 # Storage directory for git sources.
86 # This is intended to be set by user in make.conf. Ebuilds must not set
89 # EGIT3_STORE_DIR=${DISTDIR}/git3-src
91 # @ECLASS-VARIABLE: EGIT_MIRROR_URI
94 # 'Top' URI to a local git mirror. If specified, the eclass will try
95 # to fetch from the local mirror instead of using the remote repository.
97 # The mirror needs to follow EGIT3_STORE_DIR structure. The directory
98 # created by eclass can be used for that purpose.
102 # EGIT_MIRROR_URI="git://mirror.lan/"
105 # @ECLASS-VARIABLE: EGIT_REPO_URI
108 # URIs to the repository, e.g. git://foo, https://foo. If multiple URIs
109 # are provided, the eclass will consider them as fallback URIs to try
110 # if the first URI does not work. For supported URI syntaxes, read up
111 # the manpage for git-clone(1).
113 # It can be overriden via env using ${PN}_LIVE_REPO variable.
115 # Can be a whitespace-separated list or an array.
119 # EGIT_REPO_URI="git://a/b.git https://c/d.git"
122 # @ECLASS-VARIABLE: EVCS_OFFLINE
125 # If non-empty, this variable prevents any online operations.
127 # @ECLASS-VARIABLE: EVCS_UMASK
130 # Set this variable to a custom umask. This is intended to be set by
131 # users. By setting this to something like 002, it can make life easier
132 # for people who do development as non-root (but are in the portage
133 # group), and then switch over to building with FEATURES=userpriv.
134 # Or vice-versa. Shouldn't be a security issue here as anyone who has
135 # portage group write access already can screw the system over in more
138 # @ECLASS-VARIABLE: EGIT_BRANCH
141 # The branch name to check out. If unset, the upstream default (HEAD)
144 # It can be overriden via env using ${PN}_LIVE_BRANCH variable.
146 # @ECLASS-VARIABLE: EGIT_COMMIT
149 # The tag name or commit identifier to check out. If unset, newest
150 # commit from the branch will be used. Note that if set to a commit
151 # not on HEAD branch, EGIT_BRANCH needs to be set to a branch on which
152 # the commit is available.
154 # It can be overriden via env using ${PN}_LIVE_COMMIT variable.
156 # @ECLASS-VARIABLE: EGIT_COMMIT_DATE
159 # Attempt to check out the repository state for the specified timestamp.
160 # The date should be in format understood by 'git rev-list'. The commits
161 # on EGIT_BRANCH will be considered.
163 # The eclass will select the last commit with commit date preceding
164 # the specified date. When merge commits are found, only first parents
165 # will be considered in order to avoid switching into external branches
166 # (assuming that merges are done correctly). In other words, each merge
167 # will be considered alike a single commit with date corresponding
168 # to the merge commit date.
170 # It can be overriden via env using ${PN}_LIVE_COMMIT_DATE variable.
172 # @ECLASS-VARIABLE: EGIT_CHECKOUT_DIR
174 # The directory to check the git sources out to.
176 # EGIT_CHECKOUT_DIR=${WORKDIR}/${P}
178 # @ECLASS-VARIABLE: EGIT_SUBMODULES
181 # An array of inclusive and exclusive wildcards on submodule names,
182 # stating which submodules are fetched and checked out. Exclusions
183 # start with '-', and exclude previously matched submodules.
185 # If unset, all submodules are enabled. Empty list disables all
186 # submodules. In order to use an exclude-only list, start the array
189 # Remember that wildcards need to be quoted in order to prevent filename
194 # # Disable all submodules
197 # # Include only foo and bar
198 # EGIT_SUBMODULES=( foo bar )
200 # # Use all submodules except for test-* but include test-lib
201 # EGIT_SUBMODULES=( '*' '-test-*' test-lib )
204 # @FUNCTION: _git-r3_env_setup
207 # Set the eclass variables as necessary for operation. This can involve
208 # setting EGIT_* to defaults or ${PN}_LIVE_* variables.
209 _git-r3_env_setup() {
210 debug-print-function ${FUNCNAME} "$@"
212 # check the clone type
213 case "${EGIT_CLONE_TYPE}" in
214 mirror|single+tags|single|shallow)
217 die "Invalid EGIT_CLONE_TYPE=${EGIT_CLONE_TYPE}"
219 case "${EGIT_MIN_CLONE_TYPE}" in
223 if [[ ${EGIT_CLONE_TYPE} == shallow ]]; then
224 einfo "git-r3: ebuild needs to be cloned in '\e[1msingle\e[22m' mode, adjusting"
225 EGIT_CLONE_TYPE=single
229 if [[ ${EGIT_CLONE_TYPE} == shallow || ${EGIT_CLONE_TYPE} == single ]]; then
230 einfo "git-r3: ebuild needs to be cloned in '\e[1msingle+tags\e[22m' mode, adjusting"
231 EGIT_CLONE_TYPE=single+tags
235 if [[ ${EGIT_CLONE_TYPE} != mirror ]]; then
236 einfo "git-r3: ebuild needs to be cloned in '\e[1mmirror\e[22m' mode, adjusting"
237 EGIT_CLONE_TYPE=mirror
241 die "Invalid EGIT_MIN_CLONE_TYPE=${EGIT_MIN_CLONE_TYPE}"
244 if [[ ${EGIT_SUBMODULES[@]+1} && $(declare -p EGIT_SUBMODULES) != "declare -a"* ]]
246 die 'EGIT_SUBMODULES must be an array.'
251 [[ ${esc_pn} == [0-9]* ]] && esc_pn=_${esc_pn}
253 livevar=${esc_pn}_LIVE_REPO
254 EGIT_REPO_URI=${!livevar-${EGIT_REPO_URI}}
256 && ewarn "Using ${livevar}, no support will be provided"
258 livevar=${esc_pn}_LIVE_BRANCH
259 EGIT_BRANCH=${!livevar-${EGIT_BRANCH}}
261 && ewarn "Using ${livevar}, no support will be provided"
263 livevar=${esc_pn}_LIVE_COMMIT
264 EGIT_COMMIT=${!livevar-${EGIT_COMMIT}}
266 && ewarn "Using ${livevar}, no support will be provided"
268 livevar=${esc_pn}_LIVE_COMMIT_DATE
269 EGIT_COMMIT_DATE=${!livevar-${EGIT_COMMIT_DATE}}
271 && ewarn "Using ${livevar}, no support will be provided"
273 if [[ ${EGIT_COMMIT} && ${EGIT_COMMIT_DATE} ]]; then
274 die "EGIT_COMMIT and EGIT_COMMIT_DATE can not be specified simultaneously"
277 # Migration helpers. Remove them when git-2 is removed.
279 if [[ ${EGIT_SOURCEDIR} ]]; then
280 eerror "EGIT_SOURCEDIR has been replaced by EGIT_CHECKOUT_DIR. While updating"
281 eerror "your ebuild, please check whether the variable is necessary at all"
282 eerror "since the default has been changed from \${S} to \${WORKDIR}/\${P}."
283 eerror "Therefore, proper setting of S may be sufficient."
284 die "EGIT_SOURCEDIR has been replaced by EGIT_CHECKOUT_DIR."
287 if [[ ${EGIT_MASTER} ]]; then
288 eerror "EGIT_MASTER has been removed. Instead, the upstream default (HEAD)"
289 eerror "is used by the eclass. Please remove the assignment or use EGIT_BRANCH"
290 eerror "as necessary."
291 die "EGIT_MASTER has been removed."
294 if [[ ${EGIT_HAS_SUBMODULES} ]]; then
295 eerror "EGIT_HAS_SUBMODULES has been removed. The eclass no longer needs"
296 eerror "to switch the clone type in order to support submodules and therefore"
297 eerror "submodules are detected and fetched automatically. If you need to"
298 eerror "disable or filter submodules, see EGIT_SUBMODULES."
299 die "EGIT_HAS_SUBMODULES is no longer necessary."
302 if [[ ${EGIT_PROJECT} ]]; then
303 eerror "EGIT_PROJECT has been removed. Instead, the eclass determines"
304 eerror "the local clone path using path in canonical EGIT_REPO_URI."
305 eerror "If the current algorithm causes issues for you, please report a bug."
306 die "EGIT_PROJECT is no longer necessary."
309 if [[ ${EGIT_BOOTSTRAP} ]]; then
310 eerror "EGIT_BOOTSTRAP has been removed. Please create proper src_prepare()"
312 die "EGIT_BOOTSTRAP has been removed."
315 if [[ ${EGIT_NOUNPACK} ]]; then
316 eerror "EGIT_NOUNPACK has been removed. The eclass no longer calls default"
317 eerror "unpack function. If necessary, please declare proper src_unpack()."
318 die "EGIT_NOUNPACK has been removed."
322 # @FUNCTION: _git-r3_set_gitdir
326 # Obtain the local repository path and set it as GIT_DIR. Creates
327 # a new repository if necessary.
329 # <repo-uri> may be used to compose the path. It should therefore be
330 # a canonical URI to the repository.
331 _git-r3_set_gitdir() {
332 debug-print-function ${FUNCNAME} "$@"
334 local repo_name=${1#*://*/}
336 # strip the trailing slash
337 repo_name=${repo_name%/}
339 # strip common prefixes to make paths more likely to match
340 # e.g. git://X/Y.git vs https://X/git/Y.git
341 # (but just one of the prefixes)
342 case "${repo_name}" in
343 # gnome.org... who else?
344 browse/*) repo_name=${repo_name#browse/};;
345 # cgit can proxy requests to git
346 cgit/*) repo_name=${repo_name#cgit/};;
348 git/*) repo_name=${repo_name#git/};;
350 gitroot/*) repo_name=${repo_name#gitroot/};;
352 p/*) repo_name=${repo_name#p/};;
354 pub/scm/*) repo_name=${repo_name#pub/scm/};;
356 # ensure a .git suffix, same reason
357 repo_name=${repo_name%.git}.git
358 # now replace all the slashes
359 repo_name=${repo_name//\//_}
361 local distdir=${PORTAGE_ACTUAL_DISTDIR:-${DISTDIR}}
362 : ${EGIT3_STORE_DIR:=${distdir}/git3-src}
364 GIT_DIR=${EGIT3_STORE_DIR}/${repo_name}
366 if [[ ! -d ${EGIT3_STORE_DIR} && ! ${EVCS_OFFLINE} ]]; then
369 mkdir -p "${EGIT3_STORE_DIR}"
370 ) || die "Unable to create ${EGIT3_STORE_DIR}"
373 addwrite "${EGIT3_STORE_DIR}"
374 if [[ ! -d ${GIT_DIR} ]]; then
375 if [[ ${EVCS_OFFLINE} ]]; then
376 eerror "A clone of the following repository is required to proceed:"
378 eerror "However, networking activity has been disabled using EVCS_OFFLINE and there"
379 eerror "is no local clone available."
380 die "No local clone of ${1}. Unable to proceed with EVCS_OFFLINE."
384 if [[ ${EVCS_UMASK} ]]; then
386 umask "${EVCS_UMASK}" || die "Bad options to umask: ${EVCS_UMASK}"
388 mkdir "${GIT_DIR}" || die
389 git init --bare || die
390 if [[ ${saved_umask} ]]; then
391 umask "${saved_umask}" || die
396 # @FUNCTION: _git-r3_set_submodules
397 # @USAGE: <file-contents>
400 # Parse .gitmodules contents passed as <file-contents>
401 # as in "$(cat .gitmodules)"). Composes a 'submodules' array that
402 # contains in order (name, URL, path) for each submodule.
403 _git-r3_set_submodules() {
404 debug-print-function ${FUNCNAME} "$@"
408 # ( name url path ... )
413 # submodule.<path>.path=<path>
414 # submodule.<path>.url=<url>
415 [[ ${l} == submodule.*.url=* ]] || continue
418 local subname=${l%%.url=*}
420 # filter out on EGIT_SUBMODULES
421 if declare -p EGIT_SUBMODULES &>/dev/null; then
423 for p in "${EGIT_SUBMODULES[@]}"; do
424 if [[ ${p} == -* ]]; then
431 [[ ${subname} == ${p} ]] && res=${l_res}
434 if [[ ! ${res} ]]; then
435 einfo "Skipping submodule \e[1m${subname}\e[22m"
440 # skip modules that have 'update = none', bug #487262.
441 local upd=$(echo "${data}" | git config -f /dev/fd/0 \
442 submodule."${subname}".update)
443 [[ ${upd} == none ]] && continue
445 # https://github.com/git/git/blob/master/refs.c#L31
446 # we are more restrictive than git itself but that should not
447 # cause any issues, #572312, #606950
448 # TODO: check escaped names for collisions
449 local enc_subname=${subname//[^a-zA-Z0-9-]/_}
453 "$(echo "${data}" | git config -f /dev/fd/0 \
454 submodule."${subname}".url || die)"
455 "$(echo "${data}" | git config -f /dev/fd/0 \
456 submodule."${subname}".path || die)"
458 done < <(echo "${data}" | git config -f /dev/fd/0 -l || die)
461 # @FUNCTION: _git-r3_set_subrepos
462 # @USAGE: <submodule-uri> <parent-repo-uri>...
465 # Create 'subrepos' array containing absolute (canonical) submodule URIs
466 # for the given <submodule-uri>. If the URI is relative, URIs will be
467 # constructed using all <parent-repo-uri>s. Otherwise, this single URI
468 # will be placed in the array.
469 _git-r3_set_subrepos() {
470 debug-print-function ${FUNCNAME} "$@"
473 subrepos=( "${@:2}" )
475 if [[ ${suburl} == ./* || ${suburl} == ../* ]]; then
476 # drop all possible trailing slashes for consistency
477 subrepos=( "${subrepos[@]%%/}" )
480 if [[ ${suburl} == ./* ]]; then
482 elif [[ ${suburl} == ../* ]]; then
485 # XXX: correctness checking
487 # drop the last path component
488 subrepos=( "${subrepos[@]%/*}" )
489 # and then the trailing slashes, again
490 subrepos=( "${subrepos[@]%%/}" )
496 # append the preprocessed path to the preprocessed URIs
497 subrepos=( "${subrepos[@]/%//${suburl}}")
499 subrepos=( "${suburl}" )
504 # @FUNCTION: _git-r3_is_local_repo
508 # Determine whether the given URI specifies a local (on-disk)
510 _git-r3_is_local_repo() {
511 debug-print-function ${FUNCNAME} "$@"
515 [[ ${uri} == file://* || ${uri} == /* ]]
518 # @FUNCTION: git-r3_fetch
519 # @USAGE: [<repo-uri> [<remote-ref> [<local-id> [<commit-date>]]]]
521 # Fetch new commits to the local clone of repository.
523 # <repo-uri> specifies the repository URIs to fetch from, as a space-
524 # -separated list. The first URI will be used as repository group
525 # identifier and therefore must be used consistently. When not
526 # specified, defaults to ${EGIT_REPO_URI}.
528 # <remote-ref> specifies the remote ref or commit id to fetch.
529 # It is preferred to use 'refs/heads/<branch-name>' for branches
530 # and 'refs/tags/<tag-name>' for tags. Other options are 'HEAD'
531 # for upstream default branch and hexadecimal commit SHA1. Defaults
532 # to the first of EGIT_COMMIT, EGIT_BRANCH or literal 'HEAD' that
533 # is set to a non-null value.
535 # <local-id> specifies the local branch identifier that will be used to
536 # locally store the fetch result. It should be unique to multiple
537 # fetches within the repository that can be performed at the same time
538 # (including parallel merges). It defaults to ${CATEGORY}/${PN}/${SLOT%/*}.
539 # This default should be fine unless you are fetching multiple trees
540 # from the same repository in the same ebuild.
542 # <commit-id> requests attempting to use repository state as of specific
543 # date. For more details, see EGIT_COMMIT_DATE.
545 # The fetch operation will affect the EGIT_STORE only. It will not touch
546 # the working copy, nor export any environment variables.
547 # If the repository contains submodules, they will be fetched
550 debug-print-function ${FUNCNAME} "$@"
555 elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
556 repos=( "${EGIT_REPO_URI[@]}" )
558 repos=( ${EGIT_REPO_URI} )
561 local branch=${EGIT_BRANCH:+refs/heads/${EGIT_BRANCH}}
562 local remote_ref=${2:-${EGIT_COMMIT:-${branch:-HEAD}}}
563 local local_id=${3:-${CATEGORY}/${PN}/${SLOT%/*}}
564 local local_ref=refs/git-r3/${local_id}/__main__
565 local commit_date=${4:-${EGIT_COMMIT_DATE}}
567 [[ ${repos[@]} ]] || die "No URI provided and EGIT_REPO_URI unset"
570 _git-r3_set_gitdir "${repos[0]}"
572 # prepend the local mirror if applicable
573 if [[ ${EGIT_MIRROR_URI} ]]; then
575 "${EGIT_MIRROR_URI%/}/${GIT_DIR##*/}"
580 # try to fetch from the remote
581 local r success saved_umask
582 if [[ ${EVCS_UMASK} ]]; then
584 umask "${EVCS_UMASK}" || die "Bad options to umask: ${EVCS_UMASK}"
586 for r in "${repos[@]}"; do
587 if [[ ! ${EVCS_OFFLINE} ]]; then
588 einfo "Fetching \e[1m${r}\e[22m ..."
590 local fetch_command=( git fetch "${r}" )
591 local clone_type=${EGIT_CLONE_TYPE}
593 if [[ ${r} == http://* || ${r} == https://* ]] &&
594 [[ ! ${EGIT_CURL_WARNED} ]] &&
595 ! ROOT=/ has_version 'dev-vcs/git[curl]'
597 ewarn "git-r3: fetching from HTTP(S) requested. In order to support HTTP(S),"
598 ewarn "dev-vcs/git needs to be built with USE=curl. Example solution:"
600 ewarn " echo dev-vcs/git curl >> /etc/portage/package.use"
601 ewarn " emerge -1v dev-vcs/git"
603 ewarn "HTTP(S) URIs will be skipped."
607 if [[ ${clone_type} == mirror ]]; then
610 # mirror the remote branches as local branches
611 "+refs/heads/*:refs/heads/*"
612 # pull tags explicitly in order to prune them properly
613 "+refs/tags/*:refs/tags/*"
614 # notes in case something needs them
615 "+refs/notes/*:refs/notes/*"
616 # and HEAD in case we need the default branch
617 # (we keep it in refs/git-r3 since otherwise --prune interferes)
618 "+HEAD:refs/git-r3/HEAD"
620 else # single or shallow
621 local fetch_l fetch_r
623 if [[ ${remote_ref} == HEAD ]]; then
626 elif [[ ${remote_ref} == refs/* ]]; then
627 # regular branch, tag or some other explicit ref
628 fetch_l=${remote_ref}
630 # tag or commit id...
631 # let ls-remote figure it out
632 local tagref=$(git ls-remote "${r}" "refs/tags/${remote_ref}")
634 # if it was a tag, ls-remote obtained a hash
635 if [[ ${tagref} ]]; then
637 fetch_l=refs/tags/${remote_ref}
640 # so we need to fetch the whole branch
641 if [[ ${branch} ]]; then
647 # fetching by commit in shallow mode? can't do.
648 if [[ ${clone_type} == shallow ]]; then
654 # checkout by date does not make sense in shallow mode
655 if [[ ${commit_date} && ${clone_type} == shallow ]]; then
659 if [[ ${fetch_l} == HEAD ]]; then
660 fetch_r=refs/git-r3/HEAD
666 "+${fetch_l}:${fetch_r}"
669 if [[ ${clone_type} == single+tags ]]; then
671 # pull tags explicitly as requested
672 "+refs/tags/*:refs/tags/*"
677 if [[ ${clone_type} == shallow ]]; then
678 if _git-r3_is_local_repo; then
679 # '--depth 1' causes sandbox violations with local repos
682 elif [[ ! $(git rev-parse --quiet --verify "${fetch_r}") ]]
684 # use '--depth 1' when fetching a new branch
685 fetch_command+=( --depth 1 )
687 else # non-shallow mode
688 if [[ -f ${GIT_DIR}/shallow ]]; then
689 fetch_command+=( --unshallow )
693 set -- "${fetch_command[@]}"
697 if [[ ${clone_type} == mirror || ${fetch_l} == HEAD ]]; then
698 # update our HEAD to match our remote HEAD ref
699 git symbolic-ref HEAD refs/git-r3/HEAD \
700 || die "Unable to update HEAD"
704 # now let's see what the user wants from us
705 if [[ ${commit_date} ]]; then
706 local dated_commit_id=$(
707 git rev-list --first-parent --before="${commit_date}" \
710 if [[ ${?} -ne 0 ]]; then
711 die "Listing ${remote_ref} failed (wrong ref?)."
712 elif [[ ! ${dated_commit_id} ]]; then
713 die "Unable to find commit for date ${commit_date}."
715 set -- git update-ref --no-deref "${local_ref}" "${dated_commit_id}"
718 local full_remote_ref=$(
719 git rev-parse --verify --symbolic-full-name "${remote_ref}"
722 if [[ ${full_remote_ref} ]]; then
723 # when we are given a ref, create a symbolic ref
724 # so that we preserve the actual argument
725 set -- git symbolic-ref "${local_ref}" "${full_remote_ref}"
727 # otherwise, we were likely given a commit id
728 set -- git update-ref --no-deref "${local_ref}" "${remote_ref}"
734 if [[ ${EVCS_OFFLINE} ]]; then
735 eerror "A clone of the following repository is required to proceed:"
737 eerror "However, networking activity has been disabled using EVCS_OFFLINE and the local"
738 eerror "clone does not have requested ref:"
739 eerror " ${remote_ref}"
740 die "Local clone of ${r} does not have requested ref: ${remote_ref}. Unable to proceed with EVCS_OFFLINE."
742 die "Referencing ${remote_ref} failed (wrong ref?)."
749 if [[ ${saved_umask} ]]; then
750 umask "${saved_umask}" || die
752 [[ ${success} ]] || die "Unable to fetch from any of EGIT_REPO_URI"
754 # submodules can reference commits in any branch
755 # always use the 'mirror' mode to accomodate that, bug #503332
756 local EGIT_CLONE_TYPE=mirror
758 # recursively fetch submodules
759 if git cat-file -e "${local_ref}":.gitmodules &>/dev/null; then
761 _git-r3_set_submodules \
762 "$(git cat-file -p "${local_ref}":.gitmodules || die)"
764 while [[ ${submodules[@]} ]]; do
765 local subname=${submodules[0]}
766 local url=${submodules[1]}
767 local path=${submodules[2]}
769 # use only submodules for which path does exist
770 # (this is in par with 'git submodule'), bug #551100
771 # note: git cat-file does not work for submodules
772 if [[ $(git ls-tree -d "${local_ref}" "${path}") ]]
774 local commit=$(git rev-parse "${local_ref}:${path}" || die)
776 if [[ ! ${commit} ]]; then
777 die "Unable to get commit id for submodule ${subname}"
781 _git-r3_set_subrepos "${url}" "${repos[@]}"
783 git-r3_fetch "${subrepos[*]}" "${commit}" "${local_id}/${subname}"
786 submodules=( "${submodules[@]:3}" ) # shift
791 # @FUNCTION: git-r3_checkout
792 # @USAGE: [<repo-uri> [<checkout-path> [<local-id>]]]
794 # Check the previously fetched tree to the working copy.
796 # <repo-uri> specifies the repository URIs, as a space-separated list.
797 # The first URI will be used as repository group identifier
798 # and therefore must be used consistently with git-r3_fetch.
799 # The remaining URIs are not used and therefore may be omitted.
800 # When not specified, defaults to ${EGIT_REPO_URI}.
802 # <checkout-path> specifies the path to place the checkout. It defaults
803 # to ${EGIT_CHECKOUT_DIR} if set, otherwise to ${WORKDIR}/${P}.
805 # <local-id> needs to specify the local identifier that was used
806 # for respective git-r3_fetch.
808 # The checkout operation will write to the working copy, and export
809 # the repository state into the environment. If the repository contains
810 # submodules, they will be checked out recursively.
812 debug-print-function ${FUNCNAME} "$@"
817 elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
818 repos=( "${EGIT_REPO_URI[@]}" )
820 repos=( ${EGIT_REPO_URI} )
823 local out_dir=${2:-${EGIT_CHECKOUT_DIR:-${WORKDIR}/${P}}}
824 local local_id=${3:-${CATEGORY}/${PN}/${SLOT%/*}}
827 _git-r3_set_gitdir "${repos[0]}"
829 einfo "Checking out \e[1m${repos[0]}\e[22m to \e[1m${out_dir}\e[22m ..."
831 if ! git cat-file -e refs/git-r3/"${local_id}"/__main__; then
832 die "Logic error: no local clone of ${repos[0]}. git-r3_fetch not used?"
835 git symbolic-ref --quiet refs/git-r3/"${local_id}"/__main__
837 local new_commit_id=$(
838 git rev-parse --verify refs/git-r3/"${local_id}"/__main__
841 git-r3_sub_checkout() {
842 local orig_repo=${GIT_DIR}
843 local -x GIT_DIR=${out_dir}/.git
844 local -x GIT_WORK_TREE=${out_dir}
846 mkdir -p "${out_dir}" || die
848 # use git init+fetch instead of clone since the latter doesn't like
849 # non-empty directories.
851 git init --quiet || die
852 # setup 'alternates' to avoid copying objects
853 echo "${orig_repo}/objects" > "${GIT_DIR}"/objects/info/alternates || die
855 cp -R "${orig_repo}"/refs/* "${GIT_DIR}"/refs/ || die
857 # (no need to copy HEAD, we will set it via checkout)
859 if [[ -f ${orig_repo}/shallow ]]; then
860 cp "${orig_repo}"/shallow "${GIT_DIR}"/ || die
863 set -- git checkout --quiet
864 if [[ ${remote_ref} ]]; then
865 set -- "${@}" "${remote_ref#refs/heads/}"
867 set -- "${@}" "${new_commit_id}"
870 "${@}" || die "git checkout ${remote_ref:-${new_commit_id}} failed"
873 unset -f git-r3_sub_checkout
875 local old_commit_id=$(
876 git rev-parse --quiet --verify refs/git-r3/"${local_id}"/__old__
878 if [[ ! ${old_commit_id} ]]; then
879 echo "GIT NEW branch -->"
880 echo " repository: ${repos[0]}"
881 echo " at the commit: ${new_commit_id}"
883 # diff against previous revision
884 echo "GIT update -->"
885 echo " repository: ${repos[0]}"
886 # write out message based on the revisions
887 if [[ "${old_commit_id}" != "${new_commit_id}" ]]; then
888 echo " updating from commit: ${old_commit_id}"
889 echo " to commit: ${new_commit_id}"
891 git --no-pager diff --stat \
892 ${old_commit_id}..${new_commit_id}
894 echo " at the commit: ${new_commit_id}"
897 git update-ref --no-deref refs/git-r3/"${local_id}"/{__old__,__main__} || die
899 # recursively checkout submodules
900 if [[ -f ${out_dir}/.gitmodules ]]; then
902 _git-r3_set_submodules \
903 "$(<"${out_dir}"/.gitmodules)"
905 while [[ ${submodules[@]} ]]; do
906 local subname=${submodules[0]}
907 local url=${submodules[1]}
908 local path=${submodules[2]}
910 # use only submodules for which path does exist
911 # (this is in par with 'git submodule'), bug #551100
912 if [[ -d ${out_dir}/${path} ]]; then
914 _git-r3_set_subrepos "${url}" "${repos[@]}"
916 git-r3_checkout "${subrepos[*]}" "${out_dir}/${path}" \
917 "${local_id}/${subname}"
920 submodules=( "${submodules[@]:3}" ) # shift
924 # keep this *after* submodules
925 export EGIT_DIR=${GIT_DIR}
926 export EGIT_VERSION=${new_commit_id}
929 # @FUNCTION: git-r3_peek_remote_ref
930 # @USAGE: [<repo-uri> [<remote-ref>]]
932 # Peek the reference in the remote repository and print the matching
933 # (newest) commit SHA1.
935 # <repo-uri> specifies the repository URIs to fetch from, as a space-
936 # -separated list. When not specified, defaults to ${EGIT_REPO_URI}.
938 # <remote-ref> specifies the remote ref to peek. It is preferred to use
939 # 'refs/heads/<branch-name>' for branches and 'refs/tags/<tag-name>'
940 # for tags. Alternatively, 'HEAD' may be used for upstream default
941 # branch. Defaults to the first of EGIT_COMMIT, EGIT_BRANCH or literal
942 # 'HEAD' that is set to a non-null value.
944 # The operation will be done purely on the remote, without using local
945 # storage. If commit SHA1 is provided as <remote-ref>, the function will
946 # fail due to limitations of git protocol.
948 # On success, the function returns 0 and writes hexadecimal commit SHA1
949 # to stdout. On failure, the function returns 1.
950 git-r3_peek_remote_ref() {
951 debug-print-function ${FUNCNAME} "$@"
956 elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
957 repos=( "${EGIT_REPO_URI[@]}" )
959 repos=( ${EGIT_REPO_URI} )
962 local branch=${EGIT_BRANCH:+refs/heads/${EGIT_BRANCH}}
963 local remote_ref=${2:-${EGIT_COMMIT:-${branch:-HEAD}}}
965 [[ ${repos[@]} ]] || die "No URI provided and EGIT_REPO_URI unset"
968 for r in "${repos[@]}"; do
969 einfo "Peeking \e[1m${remote_ref}\e[22m on \e[1m${r}\e[22m ..." >&2
972 if [[ ${remote_ref} == refs/* || ${remote_ref} == HEAD ]]
974 lookup_ref=${remote_ref}
976 # ls-remote by commit is going to fail anyway,
977 # so we may as well pass refs/tags/ABCDEF...
978 lookup_ref=refs/tags/${remote_ref}
981 # split on whitespace
983 $(git ls-remote "${r}" "${lookup_ref}")
986 if [[ ${ref[0]} ]]; then
996 debug-print-function ${FUNCNAME} "$@"
998 if [[ ! ${EGIT3_STORE_DIR} && ${EGIT_STORE_DIR} ]]; then
999 ewarn "You have set EGIT_STORE_DIR but not EGIT3_STORE_DIR. Please consider"
1000 ewarn "setting EGIT3_STORE_DIR for git-r3.eclass. It is recommended to use"
1001 ewarn "a different directory than EGIT_STORE_DIR to ease removing old clones"
1002 ewarn "when git-2 eclass becomes deprecated."
1009 git-r3_src_unpack() {
1010 debug-print-function ${FUNCNAME} "$@"
1017 # https://bugs.gentoo.org/show_bug.cgi?id=482666
1018 git-r3_pkg_needrebuild() {
1019 debug-print-function ${FUNCNAME} "$@"
1021 local new_commit_id=$(git-r3_peek_remote_ref)
1022 [[ ${new_commit_id} && ${EGIT_VERSION} ]] || die "Lookup failed"
1024 if [[ ${EGIT_VERSION} != ${new_commit_id} ]]; then
1025 einfo "Update from \e[1m${EGIT_VERSION}\e[22m to \e[1m${new_commit_id}\e[22m"
1027 einfo "Local and remote at \e[1m${EGIT_VERSION}\e[22m"
1030 [[ ${EGIT_VERSION} != ${new_commit_id} ]]
1033 # 'export' locally until this gets into EAPI
1034 pkg_needrebuild() { git-r3_pkg_needrebuild; }