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contrib: Verify the id to be printed is ancestor of the corresponding remote release branch (or master), otherwise print nothing. 

The monotonically increasing revision ids need to be globally unique, so they should
only identify commits that were committed to the upstream repo to its master or
releases/gcc-N branches.  The alias could print something even for private branches
or vendor branches etc., but if such an identifier is then used publicly, it will
refer to something else.

2020-01-16  Jakub Jelinek  <jakub@redhat.com>

	* gcc-git-customization.sh: Verify the id to be printed is ancestor of
	the corresponding remote release branch (or master), otherwise print
	nothing.
This commit is contained in:
Jakub Jelinek 2020-01-16 12:32:34 +01:00
parent f7dff7699f
commit 2588197b6c
2 changed files with 7 additions and 1 deletions
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@ -1,3 +1,9 @@
2020-01-16 Jakub Jelinek <jakub@redhat.com>
* gcc-git-customization.sh: Verify the id to be printed is ancestor of
the corresponding remote release branch (or master), otherwise print
nothing.
2020-01-15 Segher Boessenkool <segher@kernel.crashing.org>
Jakub Jelinek <jakub@redhat.com>

2
contrib/gcc-git-customization.sh
View File

@ -22,7 +22,7 @@ git config alias.svn-rev '!f() { rev=$1; shift; git log --all --grep="From-SVN:
# Add git commands to convert git commit to monotonically increasing revision number
# and vice versa
git config alias.gcc-descr \!"f() { if test \${1:-no} = --full; then r=\$(git describe --all --abbrev=40 --match 'basepoints/gcc-[0-9]*' \${2:-master} | sed -n 's,^\\(tags/\\)\\?basepoints/gcc-,r,p'); expr match \${r:-no} '^r[0-9]\\+\$' >/dev/null && r=\${r}-0-g\$(git rev-parse \${2:-master}); test -n \$r && echo \${r}; else git describe --all --match 'basepoints/gcc-[0-9]*' \${1:-master} | sed -n 's,^\\(tags/\\)\\?basepoints/gcc-\\([0-9]\\+\\)-\\([0-9]\\+\\)-g[0-9a-f]*\$,r\\2-\\3,p;s,^\\(tags/\\)\\?basepoints/gcc-\\([0-9]\\+\\)\$,r\\2-0,p'; fi; }; f"
git config alias.gcc-descr \!"f() { if test \${1:-no} = --full; then c=\${2:-master}; r=\$(git describe --all --abbrev=40 --match 'basepoints/gcc-[0-9]*' \$c | sed -n 's,^\\(tags/\\)\\?basepoints/gcc-,r,p'); expr match \${r:-no} '^r[0-9]\\+\$' >/dev/null && r=\${r}-0-g\$(git rev-parse \${2:-master}); else c=\${1:-master}; r=\$(git describe --all --match 'basepoints/gcc-[0-9]*' \$c | sed -n 's,^\\(tags/\\)\\?basepoints/gcc-\\([0-9]\\+\\)-\\([0-9]\\+\\)-g[0-9a-f]*\$,r\\2-\\3,p;s,^\\(tags/\\)\\?basepoints/gcc-\\([0-9]\\+\\)\$,r\\2-0,p'); fi; if test -n \$r; then o=\$(git config --get gcc-config.upstream); rr=\$(echo \$r | sed -n 's,^r\\([0-9]\\+\\)-[0-9]\\+\\(-g[0-9a-f]\\+\\)\\?\$,\\1,p'); if git rev-parse --verify --quiet \${o:-origin}/releases/gcc-\$rr >/dev/null; then m=releases/gcc-\$rr; else m=master; fi; git merge-base --is-ancestor \$c \${o:-origin}/\$m && \echo \${r}; fi; }; f"
git config alias.gcc-undescr \!"f() { o=\$(git config --get gcc-config.upstream); r=\$(echo \$1 | sed -n 's,^r\\([0-9]\\+\\)-[0-9]\\+\$,\\1,p'); n=\$(echo \$1 | sed -n 's,^r[0-9]\\+-\\([0-9]\\+\\)\$,\\1,p'); test -z \$r && echo Invalid id \$1 && exit 1; h=\$(git rev-parse --verify --quiet \${o:-origin}/releases/gcc-\$r); test -z \$h && h=\$(git rev-parse --verify --quiet \${o:-origin}/master); p=\$(git describe --all --match 'basepoints/gcc-'\$r \$h | sed -n 's,^\\(tags/\\)\\?basepoints/gcc-[0-9]\\+-\\([0-9]\\+\\)-g[0-9a-f]*\$,\\2,p;s,^\\(tags/\\)\\?basepoints/gcc-[0-9]\\+\$,0,p'); git rev-parse --verify \$h~\$(expr \$p - \$n); }; f"
# Make diff on MD files use "(define" as a function marker.