1 # Copyright 1999-2018 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 # @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
28 if [[ ! ${_INHERITED_BY_GIT_2} ]]; then
29 if [[ ${EAPI:-0} != [0123456] ]]; then
30 BDEPEND=">=dev-vcs/git-1.8.2.1[curl]"
32 DEPEND=">=dev-vcs/git-1.8.2.1[curl]"
36 # @ECLASS-VARIABLE: EGIT_CLONE_TYPE
38 # Type of clone that should be used against the remote repository.
39 # This can be either of: 'mirror', 'single', 'shallow'.
41 # This is intended to be set by user in make.conf. Ebuilds are supposed
42 # to set EGIT_MIN_CLONE_TYPE if necessary instead.
44 # The 'mirror' type clones all remote branches and tags with complete
45 # history and all notes. EGIT_COMMIT can specify any commit hash.
46 # Upstream-removed branches and tags are purged from the local clone
47 # while fetching. This mode is suitable for cloning the local copy
48 # for development or hosting a local git mirror. However, clones
49 # of repositories with large diverged branches may quickly grow large.
51 # The 'single+tags' type clones the requested branch and all tags
52 # in the repository. All notes are fetched as well. EGIT_COMMIT
53 # can safely specify hashes throughout the current branch and all tags.
54 # No purging of old references is done (if you often switch branches,
55 # you may need to remove stale branches yourself). This mode is intended
56 # mostly for use with broken git servers such as Google Code that fail
57 # to fetch tags along with the branch in 'single' mode.
59 # The 'single' type clones only the requested branch or tag. Tags
60 # referencing commits throughout the branch history are fetched as well,
61 # and all notes. EGIT_COMMIT can safely specify only hashes
62 # in the current branch. No purging of old references is done (if you
63 # often switch branches, you may need to remove stale branches
64 # yourself). This mode is suitable for general use.
66 # The 'shallow' type clones only the newest commit on requested branch
67 # or tag. EGIT_COMMIT can only specify tags, and since the history is
68 # unavailable calls like 'git describe' will not reference prior tags.
69 # No purging of old references is done. This mode is intended mostly for
70 # embedded systems with limited disk space.
71 : ${EGIT_CLONE_TYPE:=single}
73 # @ECLASS-VARIABLE: EGIT_MIN_CLONE_TYPE
75 # 'Minimum' clone type supported by the ebuild. Takes same values
76 # as EGIT_CLONE_TYPE. When user sets a type that's 'lower' (that is,
77 # later on the list) than EGIT_MIN_CLONE_TYPE, the eclass uses
78 # EGIT_MIN_CLONE_TYPE instead.
80 # This variable is intended to be used by ebuilds only. Users are
81 # supposed to set EGIT_CLONE_TYPE instead.
83 # A common case is to use 'single' whenever the build system requires
84 # access to full branch history, or 'single+tags' when Google Code
85 # or a similar remote is used that does not support shallow clones
86 # and fetching tags along with commits. Please use sparingly, and to fix
87 # fatal errors rather than 'non-pretty versions'.
88 : ${EGIT_MIN_CLONE_TYPE:=shallow}
90 # @ECLASS-VARIABLE: EGIT3_STORE_DIR
92 # Storage directory for git sources.
94 # This is intended to be set by user in make.conf. Ebuilds must not set
97 # EGIT3_STORE_DIR=${DISTDIR}/git3-src
99 # @ECLASS-VARIABLE: EGIT_MIRROR_URI
102 # 'Top' URI to a local git mirror. If specified, the eclass will try
103 # to fetch from the local mirror instead of using the remote repository.
105 # The mirror needs to follow EGIT3_STORE_DIR structure. The directory
106 # created by eclass can be used for that purpose.
110 # EGIT_MIRROR_URI="git://mirror.lan/"
113 # @ECLASS-VARIABLE: EGIT_REPO_URI
116 # URIs to the repository, e.g. https://foo. If multiple URIs are
117 # provided, the eclass will consider the remaining URIs as fallbacks
118 # to try if the first URI does not work. For supported URI syntaxes,
119 # read the manpage for git-clone(1).
121 # URIs should be using https:// whenever possible. http:// and git://
122 # URIs are completely unsecured and their use (even if only as
123 # a fallback) renders the ebuild completely vulnerable to MITM attacks.
125 # Can be a whitespace-separated list or an array.
129 # EGIT_REPO_URI="https://a/b.git https://c/d.git"
132 # @ECLASS-VARIABLE: EVCS_OFFLINE
135 # If non-empty, this variable prevents any online operations.
137 # @ECLASS-VARIABLE: EVCS_UMASK
140 # Set this variable to a custom umask. This is intended to be set by
141 # users. By setting this to something like 002, it can make life easier
142 # for people who do development as non-root (but are in the portage
143 # group), and then switch over to building with FEATURES=userpriv.
144 # Or vice-versa. Shouldn't be a security issue here as anyone who has
145 # portage group write access already can screw the system over in more
148 # @ECLASS-VARIABLE: EGIT_BRANCH
151 # The branch name to check out. If unset, the upstream default (HEAD)
154 # @ECLASS-VARIABLE: EGIT_COMMIT
157 # The tag name or commit identifier to check out. If unset, newest
158 # commit from the branch will be used. Note that if set to a commit
159 # not on HEAD branch, EGIT_BRANCH needs to be set to a branch on which
160 # the commit is available.
162 # @ECLASS-VARIABLE: EGIT_COMMIT_DATE
165 # Attempt to check out the repository state for the specified timestamp.
166 # The date should be in format understood by 'git rev-list'. The commits
167 # on EGIT_BRANCH will be considered.
169 # The eclass will select the last commit with commit date preceding
170 # the specified date. When merge commits are found, only first parents
171 # will be considered in order to avoid switching into external branches
172 # (assuming that merges are done correctly). In other words, each merge
173 # will be considered alike a single commit with date corresponding
174 # to the merge commit date.
176 # @ECLASS-VARIABLE: EGIT_CHECKOUT_DIR
178 # The directory to check the git sources out to.
180 # EGIT_CHECKOUT_DIR=${WORKDIR}/${P}
182 # @ECLASS-VARIABLE: EGIT_SUBMODULES
185 # An array of inclusive and exclusive wildcards on submodule names,
186 # stating which submodules are fetched and checked out. Exclusions
187 # start with '-', and exclude previously matched submodules.
189 # If unset, all submodules are enabled. Empty list disables all
190 # submodules. In order to use an exclude-only list, start the array
193 # Remember that wildcards need to be quoted in order to prevent filename
198 # # Disable all submodules
201 # # Include only foo and bar
202 # EGIT_SUBMODULES=( foo bar )
204 # # Use all submodules except for test-* but include test-lib
205 # EGIT_SUBMODULES=( '*' '-test-*' test-lib )
208 # @FUNCTION: _git-r3_env_setup
211 # Set the eclass variables as necessary for operation. This can involve
212 # setting EGIT_* to defaults or ${PN}_LIVE_* variables.
213 _git-r3_env_setup() {
214 debug-print-function ${FUNCNAME} "$@"
216 # check the clone type
217 case "${EGIT_CLONE_TYPE}" in
218 mirror|single+tags|single|shallow)
221 die "Invalid EGIT_CLONE_TYPE=${EGIT_CLONE_TYPE}"
223 case "${EGIT_MIN_CLONE_TYPE}" in
227 if [[ ${EGIT_CLONE_TYPE} == shallow ]]; then
228 einfo "git-r3: ebuild needs to be cloned in '\e[1msingle\e[22m' mode, adjusting"
229 EGIT_CLONE_TYPE=single
233 if [[ ${EGIT_CLONE_TYPE} == shallow || ${EGIT_CLONE_TYPE} == single ]]; then
234 einfo "git-r3: ebuild needs to be cloned in '\e[1msingle+tags\e[22m' mode, adjusting"
235 EGIT_CLONE_TYPE=single+tags
239 if [[ ${EGIT_CLONE_TYPE} != mirror ]]; then
240 einfo "git-r3: ebuild needs to be cloned in '\e[1mmirror\e[22m' mode, adjusting"
241 EGIT_CLONE_TYPE=mirror
245 die "Invalid EGIT_MIN_CLONE_TYPE=${EGIT_MIN_CLONE_TYPE}"
248 if [[ ${EGIT_SUBMODULES[@]+1} && $(declare -p EGIT_SUBMODULES) != "declare -a"* ]]
250 die 'EGIT_SUBMODULES must be an array.'
255 [[ ${esc_pn} == [0-9]* ]] && esc_pn=_${esc_pn}
257 # note: deprecated, use EGIT_OVERRIDE_* instead
258 livevar=${esc_pn}_LIVE_REPO
259 EGIT_REPO_URI=${!livevar-${EGIT_REPO_URI}}
261 && ewarn "Using ${livevar}, no support will be provided"
263 livevar=${esc_pn}_LIVE_BRANCH
264 EGIT_BRANCH=${!livevar-${EGIT_BRANCH}}
266 && ewarn "Using ${livevar}, no support will be provided"
268 livevar=${esc_pn}_LIVE_COMMIT
269 EGIT_COMMIT=${!livevar-${EGIT_COMMIT}}
271 && ewarn "Using ${livevar}, no support will be provided"
273 livevar=${esc_pn}_LIVE_COMMIT_DATE
274 EGIT_COMMIT_DATE=${!livevar-${EGIT_COMMIT_DATE}}
276 && ewarn "Using ${livevar}, no support will be provided"
278 if [[ ${EGIT_COMMIT} && ${EGIT_COMMIT_DATE} ]]; then
279 die "EGIT_COMMIT and EGIT_COMMIT_DATE can not be specified simultaneously"
282 # Migration helpers. Remove them when git-2 is removed.
284 if [[ ${EGIT_SOURCEDIR} ]]; then
285 eerror "EGIT_SOURCEDIR has been replaced by EGIT_CHECKOUT_DIR. While updating"
286 eerror "your ebuild, please check whether the variable is necessary at all"
287 eerror "since the default has been changed from \${S} to \${WORKDIR}/\${P}."
288 eerror "Therefore, proper setting of S may be sufficient."
289 die "EGIT_SOURCEDIR has been replaced by EGIT_CHECKOUT_DIR."
292 if [[ ${EGIT_MASTER} ]]; then
293 eerror "EGIT_MASTER has been removed. Instead, the upstream default (HEAD)"
294 eerror "is used by the eclass. Please remove the assignment or use EGIT_BRANCH"
295 eerror "as necessary."
296 die "EGIT_MASTER has been removed."
299 if [[ ${EGIT_HAS_SUBMODULES} ]]; then
300 eerror "EGIT_HAS_SUBMODULES has been removed. The eclass no longer needs"
301 eerror "to switch the clone type in order to support submodules and therefore"
302 eerror "submodules are detected and fetched automatically. If you need to"
303 eerror "disable or filter submodules, see EGIT_SUBMODULES."
304 die "EGIT_HAS_SUBMODULES is no longer necessary."
307 if [[ ${EGIT_PROJECT} ]]; then
308 eerror "EGIT_PROJECT has been removed. Instead, the eclass determines"
309 eerror "the local clone path using path in canonical EGIT_REPO_URI."
310 eerror "If the current algorithm causes issues for you, please report a bug."
311 die "EGIT_PROJECT is no longer necessary."
314 if [[ ${EGIT_BOOTSTRAP} ]]; then
315 eerror "EGIT_BOOTSTRAP has been removed. Please create proper src_prepare()"
317 die "EGIT_BOOTSTRAP has been removed."
320 if [[ ${EGIT_NOUNPACK} ]]; then
321 eerror "EGIT_NOUNPACK has been removed. The eclass no longer calls default"
322 eerror "unpack function. If necessary, please declare proper src_unpack()."
323 die "EGIT_NOUNPACK has been removed."
327 # @FUNCTION: _git-r3_set_gitdir
331 # Obtain the local repository path and set it as GIT_DIR. Creates
332 # a new repository if necessary.
334 # <repo-uri> may be used to compose the path. It should therefore be
335 # a canonical URI to the repository.
336 _git-r3_set_gitdir() {
337 debug-print-function ${FUNCNAME} "$@"
339 local repo_name=${1#*://*/}
341 # strip the trailing slash
342 repo_name=${repo_name%/}
344 # strip common prefixes to make paths more likely to match
345 # e.g. git://X/Y.git vs https://X/git/Y.git
346 # (but just one of the prefixes)
347 case "${repo_name}" in
348 # gnome.org... who else?
349 browse/*) repo_name=${repo_name#browse/};;
350 # cgit can proxy requests to git
351 cgit/*) repo_name=${repo_name#cgit/};;
353 git/*) repo_name=${repo_name#git/};;
355 gitroot/*) repo_name=${repo_name#gitroot/};;
357 p/*) repo_name=${repo_name#p/};;
359 pub/scm/*) repo_name=${repo_name#pub/scm/};;
361 # ensure a .git suffix, same reason
362 repo_name=${repo_name%.git}.git
363 # now replace all the slashes
364 repo_name=${repo_name//\//_}
366 local distdir=${PORTAGE_ACTUAL_DISTDIR:-${DISTDIR}}
367 : ${EGIT3_STORE_DIR:=${distdir}/git3-src}
369 GIT_DIR=${EGIT3_STORE_DIR}/${repo_name}
371 if [[ ! -d ${EGIT3_STORE_DIR} && ! ${EVCS_OFFLINE} ]]; then
374 mkdir -p "${EGIT3_STORE_DIR}"
375 ) || die "Unable to create ${EGIT3_STORE_DIR}"
378 addwrite "${EGIT3_STORE_DIR}"
379 if [[ ! -d ${GIT_DIR} ]]; then
380 if [[ ${EVCS_OFFLINE} ]]; then
381 eerror "A clone of the following repository is required to proceed:"
383 eerror "However, networking activity has been disabled using EVCS_OFFLINE and there"
384 eerror "is no local clone available."
385 die "No local clone of ${1}. Unable to proceed with EVCS_OFFLINE."
389 if [[ ${EVCS_UMASK} ]]; then
391 umask "${EVCS_UMASK}" || die "Bad options to umask: ${EVCS_UMASK}"
393 mkdir "${GIT_DIR}" || die
394 git init --bare || die
395 if [[ ${saved_umask} ]]; then
396 umask "${saved_umask}" || die
401 # @FUNCTION: _git-r3_set_submodules
402 # @USAGE: <file-contents>
405 # Parse .gitmodules contents passed as <file-contents>
406 # as in "$(cat .gitmodules)"). Composes a 'submodules' array that
407 # contains in order (name, URL, path) for each submodule.
408 _git-r3_set_submodules() {
409 debug-print-function ${FUNCNAME} "$@"
413 # ( name url path ... )
418 # submodule.<path>.path=<path>
419 # submodule.<path>.url=<url>
420 [[ ${l} == submodule.*.url=* ]] || continue
423 local subname=${l%%.url=*}
425 # filter out on EGIT_SUBMODULES
426 if declare -p EGIT_SUBMODULES &>/dev/null; then
428 for p in "${EGIT_SUBMODULES[@]}"; do
429 if [[ ${p} == -* ]]; then
436 [[ ${subname} == ${p} ]] && res=${l_res}
439 if [[ ! ${res} ]]; then
440 einfo "Skipping submodule \e[1m${subname}\e[22m"
445 # skip modules that have 'update = none', bug #487262.
446 local upd=$(echo "${data}" | git config -f /dev/fd/0 \
447 submodule."${subname}".update)
448 [[ ${upd} == none ]] && continue
450 # https://github.com/git/git/blob/master/refs.c#L31
451 # we are more restrictive than git itself but that should not
452 # cause any issues, #572312, #606950
453 # TODO: check escaped names for collisions
454 local enc_subname=${subname//[^a-zA-Z0-9-]/_}
458 "$(echo "${data}" | git config -f /dev/fd/0 \
459 submodule."${subname}".url || die)"
460 "$(echo "${data}" | git config -f /dev/fd/0 \
461 submodule."${subname}".path || die)"
463 done < <(echo "${data}" | git config -f /dev/fd/0 -l || die)
466 # @FUNCTION: _git-r3_set_subrepos
467 # @USAGE: <submodule-uri> <parent-repo-uri>...
470 # Create 'subrepos' array containing absolute (canonical) submodule URIs
471 # for the given <submodule-uri>. If the URI is relative, URIs will be
472 # constructed using all <parent-repo-uri>s. Otherwise, this single URI
473 # will be placed in the array.
474 _git-r3_set_subrepos() {
475 debug-print-function ${FUNCNAME} "$@"
478 subrepos=( "${@:2}" )
480 if [[ ${suburl} == ./* || ${suburl} == ../* ]]; then
481 # drop all possible trailing slashes for consistency
482 subrepos=( "${subrepos[@]%%/}" )
485 if [[ ${suburl} == ./* ]]; then
487 elif [[ ${suburl} == ../* ]]; then
490 # XXX: correctness checking
492 # drop the last path component
493 subrepos=( "${subrepos[@]%/*}" )
494 # and then the trailing slashes, again
495 subrepos=( "${subrepos[@]%%/}" )
501 # append the preprocessed path to the preprocessed URIs
502 subrepos=( "${subrepos[@]/%//${suburl}}")
504 subrepos=( "${suburl}" )
509 # @FUNCTION: _git-r3_is_local_repo
513 # Determine whether the given URI specifies a local (on-disk)
515 _git-r3_is_local_repo() {
516 debug-print-function ${FUNCNAME} "$@"
520 [[ ${uri} == file://* || ${uri} == /* ]]
523 # @FUNCTION: git-r3_fetch
524 # @USAGE: [<repo-uri> [<remote-ref> [<local-id> [<commit-date>]]]]
526 # Fetch new commits to the local clone of repository.
528 # <repo-uri> specifies the repository URIs to fetch from, as a space-
529 # -separated list. The first URI will be used as repository group
530 # identifier and therefore must be used consistently. When not
531 # specified, defaults to ${EGIT_REPO_URI}.
533 # <remote-ref> specifies the remote ref or commit id to fetch.
534 # It is preferred to use 'refs/heads/<branch-name>' for branches
535 # and 'refs/tags/<tag-name>' for tags. Other options are 'HEAD'
536 # for upstream default branch and hexadecimal commit SHA1. Defaults
537 # to the first of EGIT_COMMIT, EGIT_BRANCH or literal 'HEAD' that
538 # is set to a non-null value.
540 # <local-id> specifies the local branch identifier that will be used to
541 # locally store the fetch result. It should be unique to multiple
542 # fetches within the repository that can be performed at the same time
543 # (including parallel merges). It defaults to ${CATEGORY}/${PN}/${SLOT%/*}.
544 # This default should be fine unless you are fetching multiple trees
545 # from the same repository in the same ebuild.
547 # <commit-id> requests attempting to use repository state as of specific
548 # date. For more details, see EGIT_COMMIT_DATE.
550 # The fetch operation will affect the EGIT_STORE only. It will not touch
551 # the working copy, nor export any environment variables.
552 # If the repository contains submodules, they will be fetched
555 debug-print-function ${FUNCNAME} "$@"
557 # process repos first since we create repo_name from it
561 elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
562 repos=( "${EGIT_REPO_URI[@]}" )
564 repos=( ${EGIT_REPO_URI} )
567 [[ ${repos[@]} ]] || die "No URI provided and EGIT_REPO_URI unset"
570 for r in "${repos[@]}"; do
571 if [[ ${r} == git:* || ${r} == http:* ]]; then
572 ewarn "git-r3: ${r%%:*} protocol is completely unsecure and may render the ebuild"
573 ewarn "easily susceptible to MITM attacks (even if used only as fallback). Please"
574 ewarn "use https instead."
580 _git-r3_set_gitdir "${repos[0]}"
582 einfo "Repository id: ${GIT_DIR##*/}"
584 # prepend the local mirror if applicable
585 if [[ ${EGIT_MIRROR_URI} ]]; then
587 "${EGIT_MIRROR_URI%/}/${GIT_DIR##*/}"
592 # get the default values for the common variables and override them
593 local branch_name=${EGIT_BRANCH}
594 local commit_id=${2:-${EGIT_COMMIT}}
595 local commit_date=${4:-${EGIT_COMMIT_DATE}}
597 # support new override API for EAPI 6+
598 if ! has "${EAPI:-0}" 0 1 2 3 4 5; then
599 # get the name and do some more processing:
600 # 1) kill .git suffix,
601 # 2) underscore (remaining) non-variable characters,
602 # 3) add preceding underscore if it starts with a digit,
604 local override_name=${GIT_DIR##*/}
605 override_name=${override_name%.git}
606 override_name=${override_name//[^a-zA-Z0-9_]/_}
607 override_name=${override_name^^}
613 COMMIT_DATE:commit_date
616 local localvar livevar live_warn= override_vars=()
617 for localvar in "${varmap[@]}"; do
618 livevar=EGIT_OVERRIDE_${localvar%:*}_${override_name}
619 localvar=${localvar#*:}
620 override_vars+=( "${livevar}" )
622 if [[ -n ${!livevar} ]]; then
623 [[ ${localvar} == repos ]] && repos=()
625 ewarn "Using ${livevar}=${!livevar}"
626 declare "${localvar}=${!livevar}"
630 if [[ ${live_warn} ]]; then
631 ewarn "No support will be provided."
633 einfo "To override fetched repository properties, use:"
635 for x in "${override_vars[@]}"; do
642 # set final variables after applying overrides
643 local branch=${branch_name:+refs/heads/${branch_name}}
644 local remote_ref=${commit_id:-${branch:-HEAD}}
645 local local_id=${3:-${CATEGORY}/${PN}/${SLOT%/*}}
646 local local_ref=refs/git-r3/${local_id}/__main__
648 # try to fetch from the remote
649 local success saved_umask
650 if [[ ${EVCS_UMASK} ]]; then
652 umask "${EVCS_UMASK}" || die "Bad options to umask: ${EVCS_UMASK}"
654 for r in "${repos[@]}"; do
655 if [[ ! ${EVCS_OFFLINE} ]]; then
656 einfo "Fetching \e[1m${r}\e[22m ..."
658 local fetch_command=( git fetch "${r}" )
659 local clone_type=${EGIT_CLONE_TYPE}
661 if [[ ${clone_type} == mirror ]]; then
664 # mirror the remote branches as local branches
665 "+refs/heads/*:refs/heads/*"
666 # pull tags explicitly in order to prune them properly
667 "+refs/tags/*:refs/tags/*"
668 # notes in case something needs them
669 "+refs/notes/*:refs/notes/*"
670 # and HEAD in case we need the default branch
671 # (we keep it in refs/git-r3 since otherwise --prune interferes)
672 "+HEAD:refs/git-r3/HEAD"
674 else # single or shallow
675 local fetch_l fetch_r
677 if [[ ${remote_ref} == HEAD ]]; then
680 elif [[ ${remote_ref} == refs/* ]]; then
681 # regular branch, tag or some other explicit ref
682 fetch_l=${remote_ref}
684 # tag or commit id...
685 # let ls-remote figure it out
686 local tagref=$(git ls-remote "${r}" "refs/tags/${remote_ref}")
688 # if it was a tag, ls-remote obtained a hash
689 if [[ ${tagref} ]]; then
691 fetch_l=refs/tags/${remote_ref}
694 # so we need to fetch the whole branch
695 if [[ ${branch} ]]; then
701 # fetching by commit in shallow mode? can't do.
702 if [[ ${clone_type} == shallow ]]; then
708 # checkout by date does not make sense in shallow mode
709 if [[ ${commit_date} && ${clone_type} == shallow ]]; then
713 if [[ ${fetch_l} == HEAD ]]; then
714 fetch_r=refs/git-r3/HEAD
720 "+${fetch_l}:${fetch_r}"
723 if [[ ${clone_type} == single+tags ]]; then
725 # pull tags explicitly as requested
726 "+refs/tags/*:refs/tags/*"
731 if [[ ${clone_type} == shallow ]]; then
732 if _git-r3_is_local_repo; then
733 # '--depth 1' causes sandbox violations with local repos
736 elif [[ ! $(git rev-parse --quiet --verify "${fetch_r}") ]]
738 # use '--depth 1' when fetching a new branch
739 fetch_command+=( --depth 1 )
741 else # non-shallow mode
742 if [[ -f ${GIT_DIR}/shallow ]]; then
743 fetch_command+=( --unshallow )
747 set -- "${fetch_command[@]}"
751 if [[ ${clone_type} == mirror || ${fetch_l} == HEAD ]]; then
752 # update our HEAD to match our remote HEAD ref
753 git symbolic-ref HEAD refs/git-r3/HEAD \
754 || die "Unable to update HEAD"
758 # now let's see what the user wants from us
759 if [[ ${commit_date} ]]; then
760 local dated_commit_id=$(
761 git rev-list --first-parent --before="${commit_date}" \
764 if [[ ${?} -ne 0 ]]; then
765 die "Listing ${remote_ref} failed (wrong ref?)."
766 elif [[ ! ${dated_commit_id} ]]; then
767 die "Unable to find commit for date ${commit_date}."
769 set -- git update-ref --no-deref "${local_ref}" "${dated_commit_id}"
772 local full_remote_ref=$(
773 git rev-parse --verify --symbolic-full-name "${remote_ref}"
776 if [[ ${full_remote_ref} ]]; then
777 # when we are given a ref, create a symbolic ref
778 # so that we preserve the actual argument
779 set -- git symbolic-ref "${local_ref}" "${full_remote_ref}"
781 # otherwise, we were likely given a commit id
782 set -- git update-ref --no-deref "${local_ref}" "${remote_ref}"
788 if [[ ${EVCS_OFFLINE} ]]; then
789 eerror "A clone of the following repository is required to proceed:"
791 eerror "However, networking activity has been disabled using EVCS_OFFLINE and the local"
792 eerror "clone does not have requested ref:"
793 eerror " ${remote_ref}"
794 die "Local clone of ${r} does not have requested ref: ${remote_ref}. Unable to proceed with EVCS_OFFLINE."
796 die "Referencing ${remote_ref} failed (wrong ref?)."
803 if [[ ${saved_umask} ]]; then
804 umask "${saved_umask}" || die
806 [[ ${success} ]] || die "Unable to fetch from any of EGIT_REPO_URI"
808 # submodules can reference commits in any branch
809 # always use the 'mirror' mode to accomodate that, bug #503332
810 local EGIT_CLONE_TYPE=mirror
812 # recursively fetch submodules
813 if git cat-file -e "${local_ref}":.gitmodules &>/dev/null; then
815 _git-r3_set_submodules \
816 "$(git cat-file -p "${local_ref}":.gitmodules || die)"
818 while [[ ${submodules[@]} ]]; do
819 local subname=${submodules[0]}
820 local url=${submodules[1]}
821 local path=${submodules[2]}
823 # use only submodules for which path does exist
824 # (this is in par with 'git submodule'), bug #551100
825 # note: git cat-file does not work for submodules
826 if [[ $(git ls-tree -d "${local_ref}" "${path}") ]]
828 local commit=$(git rev-parse "${local_ref}:${path}" || die)
830 if [[ ! ${commit} ]]; then
831 die "Unable to get commit id for submodule ${subname}"
835 _git-r3_set_subrepos "${url}" "${repos[@]}"
837 git-r3_fetch "${subrepos[*]}" "${commit}" "${local_id}/${subname}"
840 submodules=( "${submodules[@]:3}" ) # shift
845 # @FUNCTION: git-r3_checkout
846 # @USAGE: [<repo-uri> [<checkout-path> [<local-id> [<checkout-paths>...]]]]
848 # Check the previously fetched tree to the working copy.
850 # <repo-uri> specifies the repository URIs, as a space-separated list.
851 # The first URI will be used as repository group identifier
852 # and therefore must be used consistently with git-r3_fetch.
853 # The remaining URIs are not used and therefore may be omitted.
854 # When not specified, defaults to ${EGIT_REPO_URI}.
856 # <checkout-path> specifies the path to place the checkout. It defaults
857 # to ${EGIT_CHECKOUT_DIR} if set, otherwise to ${WORKDIR}/${P}.
859 # <local-id> needs to specify the local identifier that was used
860 # for respective git-r3_fetch.
862 # If <checkout-paths> are specified, then the specified paths are passed
863 # to 'git checkout' to effect a partial checkout. Please note that such
864 # checkout will not cause the repository to switch branches,
865 # and submodules will be skipped at the moment. The submodules matching
866 # those paths might be checked out in a future version of the eclass.
868 # The checkout operation will write to the working copy, and export
869 # the repository state into the environment. If the repository contains
870 # submodules, they will be checked out recursively.
872 debug-print-function ${FUNCNAME} "$@"
877 elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
878 repos=( "${EGIT_REPO_URI[@]}" )
880 repos=( ${EGIT_REPO_URI} )
883 local out_dir=${2:-${EGIT_CHECKOUT_DIR:-${WORKDIR}/${P}}}
884 local local_id=${3:-${CATEGORY}/${PN}/${SLOT%/*}}
885 local checkout_paths=( "${@:4}" )
888 _git-r3_set_gitdir "${repos[0]}"
890 einfo "Checking out \e[1m${repos[0]}\e[22m to \e[1m${out_dir}\e[22m ..."
892 if ! git cat-file -e refs/git-r3/"${local_id}"/__main__; then
893 die "Logic error: no local clone of ${repos[0]}. git-r3_fetch not used?"
896 git symbolic-ref --quiet refs/git-r3/"${local_id}"/__main__
898 local new_commit_id=$(
899 git rev-parse --verify refs/git-r3/"${local_id}"/__main__
902 git-r3_sub_checkout() {
903 local orig_repo=${GIT_DIR}
904 local -x GIT_DIR=${out_dir}/.git
905 local -x GIT_WORK_TREE=${out_dir}
907 mkdir -p "${out_dir}" || die
909 # use git init+fetch instead of clone since the latter doesn't like
910 # non-empty directories.
912 git init --quiet || die
913 # setup 'alternates' to avoid copying objects
914 echo "${orig_repo}/objects" > "${GIT_DIR}"/objects/info/alternates || die
916 cp -R "${orig_repo}"/refs/* "${GIT_DIR}"/refs/ || die
917 if [[ -f ${orig_repo}/packed-refs ]]; then
918 cp "${orig_repo}"/packed-refs "${GIT_DIR}"/packed-refs || die
921 # (no need to copy HEAD, we will set it via checkout)
923 if [[ -f ${orig_repo}/shallow ]]; then
924 cp "${orig_repo}"/shallow "${GIT_DIR}"/ || die
927 set -- git checkout --quiet
928 if [[ ${remote_ref} ]]; then
929 set -- "${@}" "${remote_ref#refs/heads/}"
931 set -- "${@}" "${new_commit_id}"
933 if [[ ${checkout_paths[@]} ]]; then
934 set -- "${@}" -- "${checkout_paths[@]}"
937 "${@}" || die "git checkout ${remote_ref:-${new_commit_id}} failed"
940 unset -f git-r3_sub_checkout
942 local old_commit_id=$(
943 git rev-parse --quiet --verify refs/git-r3/"${local_id}"/__old__
945 if [[ ! ${old_commit_id} ]]; then
946 echo "GIT NEW branch -->"
947 echo " repository: ${repos[0]}"
948 echo " at the commit: ${new_commit_id}"
950 # diff against previous revision
951 echo "GIT update -->"
952 echo " repository: ${repos[0]}"
953 # write out message based on the revisions
954 if [[ "${old_commit_id}" != "${new_commit_id}" ]]; then
955 echo " updating from commit: ${old_commit_id}"
956 echo " to commit: ${new_commit_id}"
958 set -- git --no-pager diff --stat \
959 ${old_commit_id}..${new_commit_id}
960 if [[ ${checkout_paths[@]} ]]; then
961 set -- "${@}" -- "${checkout_paths[@]}"
965 echo " at the commit: ${new_commit_id}"
968 git update-ref --no-deref refs/git-r3/"${local_id}"/{__old__,__main__} || die
970 # recursively checkout submodules
971 if [[ -f ${out_dir}/.gitmodules && ! ${checkout_paths} ]]; then
973 _git-r3_set_submodules \
974 "$(<"${out_dir}"/.gitmodules)"
976 while [[ ${submodules[@]} ]]; do
977 local subname=${submodules[0]}
978 local url=${submodules[1]}
979 local path=${submodules[2]}
981 # use only submodules for which path does exist
982 # (this is in par with 'git submodule'), bug #551100
983 if [[ -d ${out_dir}/${path} ]]; then
985 _git-r3_set_subrepos "${url}" "${repos[@]}"
987 git-r3_checkout "${subrepos[*]}" "${out_dir}/${path}" \
988 "${local_id}/${subname}"
991 submodules=( "${submodules[@]:3}" ) # shift
995 # keep this *after* submodules
996 export EGIT_DIR=${GIT_DIR}
997 export EGIT_VERSION=${new_commit_id}
1000 # @FUNCTION: git-r3_peek_remote_ref
1001 # @USAGE: [<repo-uri> [<remote-ref>]]
1003 # Peek the reference in the remote repository and print the matching
1004 # (newest) commit SHA1.
1006 # <repo-uri> specifies the repository URIs to fetch from, as a space-
1007 # -separated list. When not specified, defaults to ${EGIT_REPO_URI}.
1009 # <remote-ref> specifies the remote ref to peek. It is preferred to use
1010 # 'refs/heads/<branch-name>' for branches and 'refs/tags/<tag-name>'
1011 # for tags. Alternatively, 'HEAD' may be used for upstream default
1012 # branch. Defaults to the first of EGIT_COMMIT, EGIT_BRANCH or literal
1013 # 'HEAD' that is set to a non-null value.
1015 # The operation will be done purely on the remote, without using local
1016 # storage. If commit SHA1 is provided as <remote-ref>, the function will
1017 # fail due to limitations of git protocol.
1019 # On success, the function returns 0 and writes hexadecimal commit SHA1
1020 # to stdout. On failure, the function returns 1.
1021 git-r3_peek_remote_ref() {
1022 debug-print-function ${FUNCNAME} "$@"
1027 elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
1028 repos=( "${EGIT_REPO_URI[@]}" )
1030 repos=( ${EGIT_REPO_URI} )
1033 local branch=${EGIT_BRANCH:+refs/heads/${EGIT_BRANCH}}
1034 local remote_ref=${2:-${EGIT_COMMIT:-${branch:-HEAD}}}
1036 [[ ${repos[@]} ]] || die "No URI provided and EGIT_REPO_URI unset"
1039 for r in "${repos[@]}"; do
1040 einfo "Peeking \e[1m${remote_ref}\e[22m on \e[1m${r}\e[22m ..." >&2
1043 if [[ ${remote_ref} == refs/* || ${remote_ref} == HEAD ]]
1045 lookup_ref=${remote_ref}
1047 # ls-remote by commit is going to fail anyway,
1048 # so we may as well pass refs/tags/ABCDEF...
1049 lookup_ref=refs/tags/${remote_ref}
1052 # split on whitespace
1054 $(git ls-remote "${r}" "${lookup_ref}")
1057 if [[ ${ref[0]} ]]; then
1066 git-r3_src_fetch() {
1067 debug-print-function ${FUNCNAME} "$@"
1069 if [[ ! ${EGIT3_STORE_DIR} && ${EGIT_STORE_DIR} ]]; then
1070 ewarn "You have set EGIT_STORE_DIR but not EGIT3_STORE_DIR. Please consider"
1071 ewarn "setting EGIT3_STORE_DIR for git-r3.eclass. It is recommended to use"
1072 ewarn "a different directory than EGIT_STORE_DIR to ease removing old clones"
1073 ewarn "when git-2 eclass becomes deprecated."
1080 git-r3_src_unpack() {
1081 debug-print-function ${FUNCNAME} "$@"
1088 # https://bugs.gentoo.org/show_bug.cgi?id=482666
1089 git-r3_pkg_needrebuild() {
1090 debug-print-function ${FUNCNAME} "$@"
1092 local new_commit_id=$(git-r3_peek_remote_ref)
1093 [[ ${new_commit_id} && ${EGIT_VERSION} ]] || die "Lookup failed"
1095 if [[ ${EGIT_VERSION} != ${new_commit_id} ]]; then
1096 einfo "Update from \e[1m${EGIT_VERSION}\e[22m to \e[1m${new_commit_id}\e[22m"
1098 einfo "Local and remote at \e[1m${EGIT_VERSION}\e[22m"
1101 [[ ${EGIT_VERSION} != ${new_commit_id} ]]
1104 # 'export' locally until this gets into EAPI
1105 pkg_needrebuild() { git-r3_pkg_needrebuild; }