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Merge branch 'gb/am-foreign'

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* gb/am-foreign:
  git-am: refactor 'cleaning up and aborting'
  git-am foreign patch support: StGIT support
  git-am foreign patch support: autodetect some patch formats
  git-am foreign patch support: introduce patch_format
This commit is contained in:
Junio C Hamano 2009-07-06 09:38:33 -07:00
commit 7557b34310
1 changed files with 127 additions and 4 deletions
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131
git-am.sh
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@ -19,6 +19,7 @@ whitespace= pass it through git-apply
directory= pass it through git-apply
C= pass it through git-apply
p= pass it through git-apply
patch-format= format the patch(es) are in
reject pass it through git-apply
resolvemsg= override error message when patch failure occurs
r,resolved to be used after a patch failure
@ -138,6 +139,126 @@ It does not apply to blobs recorded in its index."
unset GITHEAD_$his_tree
}
clean_abort () {
test $# = 0 || echo >&2 "$@"
rm -fr "$dotest"
exit 1
}
patch_format=
check_patch_format () {
# early return if patch_format was set from the command line
if test -n "$patch_format"
then
return 0
fi
# we default to mbox format if input is from stdin and for
# directories
if test $# = 0 || test "x$1" = "x-" || test -d "$1"
then
patch_format=mbox
return 0
fi
# otherwise, check the first few lines of the first patch to try
# to detect its format
{
read l1
read l2
read l3
case "$l1" in
"From "* | "From: "*)
patch_format=mbox
;;
'# This series applies on GIT commit'*)
patch_format=stgit-series
;;
"# HG changeset patch")
patch_format=hg
;;
*)
# if the second line is empty and the third is
# a From, Author or Date entry, this is very
# likely an StGIT patch
case "$l2,$l3" in
,"From: "* | ,"Author: "* | ,"Date: "*)
patch_format=stgit
;;
*)
;;
esac
;;
esac
} < "$1" || clean_abort
}
split_patches () {
case "$patch_format" in
mbox)
git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" ||
clean_abort
;;
stgit-series)
if test $# -ne 1
then
clean_abort "Only one StGIT patch series can be applied at once"
fi
series_dir=`dirname "$1"`
series_file="$1"
shift
{
set x
while read filename
do
set "$@" "$series_dir/$filename"
done
# remove the safety x
shift
# remove the arg coming from the first-line comment
shift
} < "$series_file" || clean_abort
# set the patch format appropriately
patch_format=stgit
# now handle the actual StGIT patches
split_patches "$@"
;;
stgit)
this=0
for stgit in "$@"
do
this=`expr "$this" + 1`
msgnum=`printf "%0${prec}d" $this`
# Perl version of StGIT parse_patch. The first nonemptyline
# not starting with Author, From or Date is the
# subject, and the body starts with the next nonempty
# line not starting with Author, From or Date
perl -ne 'BEGIN { $subject = 0 }
if ($subject > 1) { print ; }
elsif (/^\s+$/) { next ; }
elsif (/^Author:/) { print s/Author/From/ ; }
elsif (/^(From|Date)/) { print ; }
elsif ($subject) {
$subject = 2 ;
print "\n" ;
print ;
} else {
print "Subject: ", $_ ;
$subject = 1;
}
' < "$stgit" > "$dotest/$msgnum" || clean_abort
done
echo "$this" > "$dotest/last"
this=
msgnum=
;;
*)
clean_abort "Patch format $patch_format is not supported."
;;
esac
}
prec=4
dotest="$GIT_DIR/rebase-apply"
sign= utf8=t keep= skip= interactive= resolved= rebasing= abort=
@ -180,6 +301,8 @@ do
git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
-C|-p)
git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
--patch-format)
shift ; patch_format="$1" ;;
--reject)
git_apply_opt="$git_apply_opt $1" ;;
--committer-date-is-author-date)
@ -281,10 +404,10 @@ else
done
shift
fi
git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" || {
rm -fr "$dotest"
exit 1
}
check_patch_format "$@"
split_patches "$@"
# -s, -u, -k, --whitespace, -3, -C, -q and -p flags are kept
# for the resuming session after a patch failure.