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-rwxr-xr-xgit-am.sh274
1 files changed, 245 insertions, 29 deletions
diff --git a/git-am.sh b/git-am.sh
index 4e0e40677..87ffae252 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -11,20 +11,29 @@ git am [options] (--resolved | --skip | --abort)
i,interactive run interactively
b,binary* (historical option -- no-op)
3,3way allow fall back on 3way merging if needed
+q,quiet be quiet
s,signoff add a Signed-off-by line to the commit message
u,utf8 recode into utf8 (default)
k,keep pass -k flag to git-mailinfo
+keep-cr pass --keep-cr flag to git-mailsplit for mbox format
+no-keep-cr do not pass --keep-cr flag to git-mailsplit independent of am.keepcr
+c,scissors strip everything before a scissors line
whitespace= pass it through git-apply
+ignore-space-change pass it through git-apply
+ignore-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
+continue continue applying patches after resolving a conflict
+r,resolved synonyms for --continue
skip skip the current patch
abort restore the original branch and abort the patching operation.
committer-date-is-author-date lie about committer date
ignore-date use current timestamp for author date
+rerere-autoupdate update the index with reused conflict resolution if possible
rebasing* (internal use for git-rebase)"
. git-sh-setup
@@ -99,7 +108,7 @@ fall_back_3way () {
git write-tree >"$dotest/patch-merge-base+" ||
cannot_fallback "Repository lacks necessary blobs to fall back on 3-way merge."
- echo Using index info to reconstruct a base tree...
+ say Using index info to reconstruct a base tree...
if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
git apply --cached <"$dotest/patch"
then
@@ -115,7 +124,7 @@ It does not apply to blobs recorded in its index."
orig_tree=$(cat "$dotest/patch-merge-base") &&
rm -fr "$dotest"/patch-merge-* || exit 1
- echo Falling back to patching base and 3-way merge...
+ say Falling back to patching base and 3-way merge...
# This is not so wrong. Depending on which base we picked,
# orig_tree may be wildly different from ours, but his_tree
@@ -125,21 +134,176 @@ It does not apply to blobs recorded in its index."
eval GITHEAD_$his_tree='"$FIRSTLINE"'
export GITHEAD_$his_tree
+ if test -n "$GIT_QUIET"
+ then
+ export GIT_MERGE_VERBOSITY=0
+ fi
git-merge-recursive $orig_tree -- HEAD $his_tree || {
- git rerere
+ git rerere $allow_rerere_autoupdate
echo Failed to merge in the changes.
exit 1
}
unset GITHEAD_$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
+ if test -z "$patch_format" &&
+ test -n "$l1" &&
+ test -n "$l2" &&
+ test -n "$l3"
+ then
+ # This begins with three non-empty lines. Is this a
+ # piece of e-mail a-la RFC2822? Grab all the headers,
+ # discarding the indented remainder of folded lines,
+ # and see if it looks like that they all begin with the
+ # header field names...
+ tr -d '\015' <"$1" |
+ sed -n -e '/^$/q' -e '/^[ ]/d' -e p |
+ sane_egrep -v '^[!-9;-~]+:' >/dev/null ||
+ patch_format=mbox
+ fi
+ } < "$1" || clean_abort
+}
+
+split_patches () {
+ case "$patch_format" in
+ mbox)
+ if test -n "$rebasing" || test t = "$keepcr"
+ then
+ keep_cr=--keep-cr
+ else
+ keep_cr=
+ fi
+ git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$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=
+ ;;
+ *)
+ if test -n "$parse_patch" ; then
+ clean_abort "Patch format $patch_format is not supported."
+ else
+ clean_abort "Patch format detection failed."
+ fi
+ ;;
+ esac
+}
+
prec=4
dotest="$GIT_DIR/rebase-apply"
-sign= utf8=t keep= skip= interactive= resolved= rebasing= abort=
-resolvemsg= resume=
+sign= utf8=t keep= keepcr= skip= interactive= resolved= rebasing= abort=
+resolvemsg= resume= scissors= no_inbody_headers=
git_apply_opt=
committer_date_is_author_date=
ignore_date=
+allow_rerere_autoupdate=
+
+if test "$(git config --bool --get am.keepcr)" = true
+then
+ keepcr=t
+fi
while test $# != 0
do
@@ -158,14 +322,18 @@ do
utf8= ;;
-k|--keep)
keep=t ;;
- -r|--resolved)
+ -c|--scissors)
+ scissors=t ;;
+ --no-scissors)
+ scissors=f ;;
+ -r|--resolved|--continue)
resolved=t ;;
--skip)
skip=t ;;
--abort)
abort=t ;;
--rebasing)
- rebasing=t threeway=t keep=t ;;
+ rebasing=t threeway=t keep=t scissors=f no_inbody_headers=t ;;
-d|--dotest)
die "-d option is no longer supported. Do not use."
;;
@@ -175,12 +343,22 @@ do
git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
-C|-p)
git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
- --reject)
+ --patch-format)
+ shift ; patch_format="$1" ;;
+ --reject|--ignore-whitespace|--ignore-space-change)
git_apply_opt="$git_apply_opt $1" ;;
--committer-date-is-author-date)
committer_date_is_author_date=t ;;
--ignore-date)
ignore_date=t ;;
+ --rerere-autoupdate|--no-rerere-autoupdate)
+ allow_rerere_autoupdate="$1" ;;
+ -q|--quiet)
+ GIT_QUIET=t ;;
+ --keep-cr)
+ keepcr=t ;;
+ --no-keep-cr)
+ keepcr=f ;;
--)
shift; break ;;
*)
@@ -274,19 +452,22 @@ else
done
shift
fi
- git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" || {
- rm -fr "$dotest"
- exit 1
- }
- # -s, -u, -k, --whitespace, -3, -C and -p flags are kept
- # for the resuming session after a patch failure.
- # -i can and must be given when resuming.
+ check_patch_format "$@"
+
+ split_patches "$@"
+
+ # -i can and must be given when resuming; everything
+ # else is kept
echo " $git_apply_opt" >"$dotest/apply-opt"
echo "$threeway" >"$dotest/threeway"
echo "$sign" >"$dotest/sign"
echo "$utf8" >"$dotest/utf8"
echo "$keep" >"$dotest/keep"
+ echo "$keepcr" >"$dotest/keepcr"
+ echo "$scissors" >"$dotest/scissors"
+ echo "$no_inbody_headers" >"$dotest/no_inbody_headers"
+ echo "$GIT_QUIET" >"$dotest/quiet"
echo 1 >"$dotest/next"
if test -n "$rebasing"
then
@@ -327,6 +508,28 @@ if test "$(cat "$dotest/keep")" = t
then
keep=-k
fi
+case "$(cat "$dotest/keepcr")" in
+t)
+ keepcr=--keep-cr ;;
+f)
+ keepcr=--no-keep-cr ;;
+esac
+case "$(cat "$dotest/scissors")" in
+t)
+ scissors=--scissors ;;
+f)
+ scissors=--no-scissors ;;
+esac
+if test "$(cat "$dotest/no_inbody_headers")" = t
+then
+ no_inbody_headers=--no-inbody-headers
+else
+ no_inbody_headers=
+fi
+if test "$(cat "$dotest/quiet")" = t
+then
+ GIT_QUIET=t
+fi
if test "$(cat "$dotest/threeway")" = t
then
threeway=t
@@ -352,7 +555,7 @@ fi
if test "$this" -gt "$last"
then
- echo Nothing to do.
+ say Nothing to do.
rm -fr "$dotest"
exit
fi
@@ -377,12 +580,12 @@ do
# by the user, or the user can tell us to do so by --resolved flag.
case "$resume" in
'')
- git mailinfo $keep $utf8 "$dotest/msg" "$dotest/patch" \
+ git mailinfo $keep $no_inbody_headers $scissors $utf8 "$dotest/msg" "$dotest/patch" \
<"$dotest/$msgnum" >"$dotest/info" ||
stop_here $this
# skip pine's internal folder data
- grep '^Author: Mail System Internal Data$' \
+ sane_grep '^Author: Mail System Internal Data$' \
<"$dotest"/info >/dev/null &&
go_next && continue
@@ -390,6 +593,7 @@ do
echo "Patch is empty. Was it split wrong?"
stop_here $this
}
+ rm -f "$dotest/original-commit"
if test -f "$dotest/rebasing" &&
commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
-e q "$dotest/$msgnum") &&
@@ -397,12 +601,14 @@ do
then
git cat-file commit "$commit" |
sed -e '1,/^$/d' >"$dotest/msg-clean"
+ echo "$commit" > "$dotest/original-commit"
else
- SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$dotest/info")"
- case "$keep_subject" in -k) SUBJECT="[PATCH] $SUBJECT" ;; esac
-
- (printf '%s\n\n' "$SUBJECT"; cat "$dotest/msg") |
- git stripspace > "$dotest/msg-clean"
+ {
+ sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
+ echo
+ cat "$dotest/msg"
+ } |
+ git stripspace > "$dotest/msg-clean"
fi
;;
esac
@@ -477,7 +683,7 @@ do
[eE]*) git_editor "$dotest/final-commit"
action=again ;;
[vV]*) action=again
- LESS=-S ${PAGER:-less} "$dotest/patch" ;;
+ git_pager "$dotest/patch" ;;
*) action=again ;;
esac
done
@@ -498,7 +704,7 @@ do
stop_here $this
fi
- printf 'Applying: %s\n' "$FIRSTLINE"
+ say "Applying: $FIRSTLINE"
case "$resolved" in
'')
@@ -541,7 +747,7 @@ do
# Applying the patch to an earlier tree and merging the
# result may have produced the same tree as ours.
git diff-index --quiet --cached HEAD -- && {
- echo No changes -- Patch already applied.
+ say No changes -- Patch already applied.
go_next
continue
}
@@ -567,7 +773,7 @@ do
GIT_AUTHOR_DATE=
fi
parent=$(git rev-parse --verify -q HEAD) ||
- echo >&2 "applying to an empty history"
+ say >&2 "applying to an empty history"
if test -n "$committer_date_is_author_date"
then
@@ -579,6 +785,10 @@ do
git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
stop_here $this
+ if test -f "$dotest/original-commit"; then
+ echo "$(cat "$dotest/original-commit") $commit" >> "$dotest/rewritten"
+ fi
+
if test -x "$GIT_DIR"/hooks/post-applypatch
then
"$GIT_DIR"/hooks/post-applypatch
@@ -587,6 +797,12 @@ do
go_next
done
-git gc --auto
+if test -s "$dotest"/rewritten; then
+ git notes copy --for-rewrite=rebase < "$dotest"/rewritten
+ if test -x "$GIT_DIR"/hooks/post-rewrite; then
+ "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
+ fi
+fi
rm -fr "$dotest"
+git gc --auto