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Signed-off-by: Michał Górny <mgorny@g.o> |
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--- |
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eclass/vcs-snapshot.eclass | 12 ++++++++++++ |
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1 file changed, 12 insertions(+) |
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|
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diff --git a/eclass/vcs-snapshot.eclass b/eclass/vcs-snapshot.eclass |
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index 33abd9a7c190..dad586c9e40b 100644 |
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--- a/eclass/vcs-snapshot.eclass |
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+++ b/eclass/vcs-snapshot.eclass |
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@@ -1,100 +1,112 @@ |
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# Copyright 1999-2019 Gentoo Authors |
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# Distributed under the terms of the GNU General Public License v2 |
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|
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# @ECLASS: vcs-snapshot.eclass |
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# @MAINTAINER: |
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# mgorny@g.o |
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# @SUPPORTED_EAPIS: 0 1 2 3 4 5 6 7 |
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# @BLURB: support eclass for unpacking VCS snapshot tarballs |
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# @DESCRIPTION: |
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# THIS ECLASS IS NOT NECESSARY FOR MODERN GITHUB AND GITLAB SNAPSHOTS. |
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# THEIR DIRECTORY STRUCTURE IS ENTIRELY PREDICTABLE, SO UPDATE YOUR |
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# EBUILD TO USE /ARCHIVE/ URI AND SET S IF NECESSARY. |
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# |
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# This eclass provides a convenience src_unpack() which does unpack all |
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# the tarballs in SRC_URI to locations matching their (local) names, |
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# discarding the original parent directory. |
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# |
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# The typical use case are VCS tag snapshots coming from BitBucket |
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# (but not GitHub or GitLab). They have hash appended to the directory |
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# name which makes extracting them a painful experience. But if you are |
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# using a SRC_URI arrow to rename them (which quite likely you have to |
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# do anyway), vcs-snapshot will just extract them into matching |
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# directories. |
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# |
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# Please note that this eclass handles only tarballs (.tar, .tar.gz, |
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# .tar.bz2 & .tar.xz). For any other file format (or suffix) it will |
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# fall back to regular unpack. Support for additional formats may be |
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# added in the future if necessary. |
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# |
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# @EXAMPLE: |
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# |
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# @CODE |
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# EAPI=7 |
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# inherit vcs-snapshot |
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# |
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# SRC_URI=" |
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# https://bitbucket.org/foo/bar/get/${PV}.tar.bz2 -> ${P}.tar.bz2 |
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# https://bitbucket.org/foo/bar-otherstuff/get/${PV}.tar.bz2 |
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# -> ${P}-otherstuff.tar.bz2" |
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# @CODE |
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# |
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# and however the tarballs were originally packed, all files will appear |
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# in ${WORKDIR}/${P} and ${WORKDIR}/${P}-otherstuff respectively. |
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|
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case ${EAPI:-0} in |
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0|1|2|3|4|5|6|7) ;; |
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*) die "vcs-snapshot.eclass API in EAPI ${EAPI} not yet established." |
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esac |
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|
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EXPORT_FUNCTIONS src_unpack |
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|
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# @FUNCTION: vcs-snapshot_src_unpack |
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# @DESCRIPTION: |
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# Extract all the archives from ${A}. The .tar, .tar.gz, .tar.bz2 |
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# and .tar.xz archives will be unpacked to directories matching their |
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# local names. Other archive types will be passed down to regular |
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# unpack. |
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vcs-snapshot_src_unpack() { |
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debug-print-function ${FUNCNAME} "${@}" |
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|
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+ local renamed_any= |
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local f |
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|
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for f in ${A} |
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do |
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case "${f}" in |
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*.tar|*.tar.gz|*.tar.bz2|*.tar.xz) |
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local destdir=${WORKDIR}/${f%.tar*} |
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|
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debug-print "${FUNCNAME}: unpacking ${f} to ${destdir}" |
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|
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local l topdirs=() |
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while read l; do |
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topdirs+=( "${l}" ) |
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done < <(tar -t -f "${DISTDIR}/${f}" | cut -d/ -f1 | sort -u) |
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if [[ ${#topdirs[@]} -gt 1 ]]; then |
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eerror "The archive ${f} contains multiple or no top directory." |
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eerror "It is impossible for vcs-snapshot to unpack this correctly." |
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eerror "Top directories found:" |
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local d |
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for d in "${topdirs[@]}"; do |
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eerror " ${d}" |
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done |
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die "${FUNCNAME}: Invalid directory structure in archive ${f}" |
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fi |
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+ [[ ${topdirs[0]} != ${f%.tar*} ]] && renamed_any=1 |
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|
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mkdir "${destdir}" || die |
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# -o (--no-same-owner) to avoid restoring original owner |
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einfo "Unpacking ${f}" |
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tar -C "${destdir}" -x -o --strip-components 1 \ |
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-f "${DISTDIR}/${f}" || die |
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;; |
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*) |
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debug-print "${FUNCNAME}: falling back to unpack for ${f}" |
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|
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# fall back to the default method |
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unpack "${f}" |
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;; |
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esac |
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done |
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+ |
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+ if [[ ! ${renamed_any} ]]; then |
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+ local w=eerror |
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+ [[ ${EAPI} == [0123456] ]] && w=eqawarn |
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+ "${w}" "${FUNCNAME} did not find any archives that needed renaming." |
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+ "${w}" "Please verify that its usage is really necessary, and remove" |
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+ "${w}" "the inherit if it is not." |
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+ |
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+ [[ ${w} == eerror ]] && die "${FUNCNAME}: Unnecessary usage detected" |
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+ fi |
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} |
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-- |
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2.22.0 |
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