diff options
Diffstat (limited to 'git-am.sh')
| -rwxr-xr-x | git-am.sh | 190 |
1 files changed, 173 insertions, 17 deletions
@@ -11,6 +11,7 @@ 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 @@ -18,6 +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 @@ -44,11 +46,7 @@ else fi sq () { - for sqarg - do - printf "%s" "$sqarg" | - sed -e 's/'\''/'\''\\'\'''\''/g' -e 's/.*/ '\''&'\''/' - done + git rev-parse --sq-quote "$@" } stop_here () { @@ -103,7 +101,7 @@ 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 <"$dotest/patch" then @@ -119,7 +117,7 @@ It does not apply to blobs recorded in its index." orig_tree=$(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 @@ -129,6 +127,10 @@ 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 $his_tree || { git rerere echo Failed to merge in the changes. @@ -137,6 +139,144 @@ It does not apply to blobs recorded in its index." unset GITHEAD_$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 + 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... + sed -n -e '/^$/q' -e '/^[ ]/d' -e p "$1" | + egrep -v '^[A-Za-z]+(-[A-Za-z]+)*:' >/dev/null || + patch_format=mbox + fi + } < "$1" || clean_abort +} + +split_patches () { + case "$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= + ;; + *) + 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= @@ -179,12 +319,16 @@ 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 $1" ;; --committer-date-is-author-date) committer_date_is_author_date=t ;; --ignore-date) ignore_date=t ;; + -q|--quiet) + GIT_QUIET=t ;; --) shift; break ;; *) @@ -278,12 +422,12 @@ else done shift fi - git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" || { - rm -fr "$dotest" - exit 1 - } - # -s, -u, -k, --whitespace, -3, -C and -p flags are kept + 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. # -i can and must be given when resuming. echo " $git_apply_opt" >"$dotest/apply-opt" @@ -291,6 +435,7 @@ else echo "$sign" >"$dotest/sign" echo "$utf8" >"$dotest/utf8" echo "$keep" >"$dotest/keep" + echo "$GIT_QUIET" >"$dotest/quiet" echo 1 >"$dotest/next" if test -n "$rebasing" then @@ -331,6 +476,10 @@ if test "$(cat "$dotest/keep")" = t then keep=-k fi +if test "$(cat "$dotest/quiet")" = t +then + GIT_QUIET=t +fi if test "$(cat "$dotest/threeway")" = t then threeway=t @@ -356,7 +505,7 @@ fi if test "$this" -gt "$last" then - echo Nothing to do. + say Nothing to do. rm -fr "$dotest" exit fi @@ -502,11 +651,18 @@ do stop_here $this fi - printf 'Applying: %s\n' "$FIRSTLINE" + say "Applying: $FIRSTLINE" case "$resolved" in '') - eval 'git apply '"$git_apply_opt"' --index "$dotest/patch"' + # When we are allowed to fall back to 3-way later, don't give + # false errors during the initial attempt. + squelch= + if test "$threeway" = t + then + squelch='>/dev/null 2>&1 ' + fi + eval "git apply $squelch$git_apply_opt"' --index "$dotest/patch"' apply_status=$? ;; t) @@ -538,7 +694,7 @@ 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 } @@ -564,7 +720,7 @@ 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 |