From fa99c1e1e16d347a354c817d96c5abbd5a08fcd8 Mon Sep 17 00:00:00 2001 From: Martin von Zweigbergk Date: Sun, 6 Feb 2011 13:43:47 -0500 Subject: [PATCH 1/1] rebase: extract merge code to new source file Extract the code for merge-based rebase to git-rebase--merge.sh. Suggested-by: Johannes Sixt Signed-off-by: Martin von Zweigbergk Signed-off-by: Junio C Hamano --- .gitignore | 1 + Makefile | 1 + git-rebase--merge.sh | 154 ++++++++++++++++++++++++++++++++++++++++ git-rebase.sh | 162 +++---------------------------------------- 4 files changed, 167 insertions(+), 151 deletions(-) create mode 100644 git-rebase--merge.sh diff --git a/.gitignore b/.gitignore index 3dd6ef7d25..a8b98b45e3 100644 --- a/.gitignore +++ b/.gitignore @@ -103,6 +103,7 @@ /git-read-tree /git-rebase /git-rebase--interactive +/git-rebase--merge /git-receive-pack /git-reflog /git-relink diff --git a/Makefile b/Makefile index ade79232f4..9c59e88b8d 100644 --- a/Makefile +++ b/Makefile @@ -370,6 +370,7 @@ SCRIPT_SH += git-mergetool.sh SCRIPT_SH += git-pull.sh SCRIPT_SH += git-quiltimport.sh SCRIPT_SH += git-rebase--interactive.sh +SCRIPT_SH += git-rebase--merge.sh SCRIPT_SH += git-rebase.sh SCRIPT_SH += git-repack.sh SCRIPT_SH += git-request-pull.sh diff --git a/git-rebase--merge.sh b/git-rebase--merge.sh new file mode 100644 index 0000000000..c04ce8a297 --- /dev/null +++ b/git-rebase--merge.sh @@ -0,0 +1,154 @@ +#!/bin/sh +# +# Copyright (c) 2010 Junio C Hamano. +# + +. git-sh-setup + +prec=4 + +read_state () { + onto_name=$(cat "$state_dir"/onto_name) && + end=$(cat "$state_dir"/end) && + msgnum=$(cat "$state_dir"/msgnum) +} + +continue_merge () { + test -d "$state_dir" || die "$state_dir directory does not exist" + + unmerged=$(git ls-files -u) + if test -n "$unmerged" + then + echo "You still have unmerged paths in your index" + echo "did you forget to use git add?" + die "$resolvemsg" + fi + + cmt=`cat "$state_dir/current"` + if ! git diff-index --quiet --ignore-submodules HEAD -- + then + if ! git commit --no-verify -C "$cmt" + then + echo "Commit failed, please do not call \"git commit\"" + echo "directly, but instead do one of the following: " + die "$resolvemsg" + fi + if test -z "$GIT_QUIET" + then + printf "Committed: %0${prec}d " $msgnum + fi + echo "$cmt $(git rev-parse HEAD^0)" >> "$state_dir/rewritten" + else + if test -z "$GIT_QUIET" + then + printf "Already applied: %0${prec}d " $msgnum + fi + fi + test -z "$GIT_QUIET" && + GIT_PAGER='' git log --format=%s -1 "$cmt" + + # onto the next patch: + msgnum=$(($msgnum + 1)) + echo "$msgnum" >"$state_dir/msgnum" +} + +call_merge () { + cmt="$(cat "$state_dir/cmt.$1")" + echo "$cmt" > "$state_dir/current" + hd=$(git rev-parse --verify HEAD) + cmt_name=$(git symbolic-ref HEAD 2> /dev/null || echo HEAD) + msgnum=$(cat "$state_dir/msgnum") + eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"' + eval GITHEAD_$hd='$onto_name' + export GITHEAD_$cmt GITHEAD_$hd + if test -n "$GIT_QUIET" + then + GIT_MERGE_VERBOSITY=1 && export GIT_MERGE_VERBOSITY + fi + test -z "$strategy" && strategy=recursive + eval 'git-merge-$strategy' $strategy_opts '"$cmt^" -- "$hd" "$cmt"' + rv=$? + case "$rv" in + 0) + unset GITHEAD_$cmt GITHEAD_$hd + return + ;; + 1) + git rerere $allow_rerere_autoupdate + die "$resolvemsg" + ;; + 2) + echo "Strategy: $rv $strategy failed, try another" 1>&2 + die "$resolvemsg" + ;; + *) + die "Unknown exit code ($rv) from command:" \ + "git-merge-$strategy $cmt^ -- HEAD $cmt" + ;; + esac +} + +finish_rb_merge () { + move_to_original_branch + git notes copy --for-rewrite=rebase < "$state_dir"/rewritten + if test -x "$GIT_DIR"/hooks/post-rewrite && + test -s "$state_dir"/rewritten; then + "$GIT_DIR"/hooks/post-rewrite rebase < "$state_dir"/rewritten + fi + rm -r "$state_dir" + say All done. +} + +case "$action" in +continue) + read_state + continue_merge + while test "$msgnum" -le "$end" + do + call_merge "$msgnum" + continue_merge + done + finish_rb_merge + exit + ;; +skip) + read_state + git rerere clear + msgnum=$(($msgnum + 1)) + while test "$msgnum" -le "$end" + do + call_merge "$msgnum" + continue_merge + done + finish_rb_merge + exit + ;; +esac + +mkdir -p "$state_dir" +echo "$onto_name" > "$state_dir/onto_name" +echo "$head_name" > "$state_dir/head-name" +echo "$onto" > "$state_dir/onto" +echo "$orig_head" > "$state_dir/orig-head" +echo "$GIT_QUIET" > "$state_dir/quiet" + +msgnum=0 +for cmt in `git rev-list --reverse --no-merges "$revisions"` +do + msgnum=$(($msgnum + 1)) + echo "$cmt" > "$state_dir/cmt.$msgnum" +done + +echo 1 >"$state_dir/msgnum" +echo $msgnum >"$state_dir/end" + +end=$msgnum +msgnum=1 + +while test "$msgnum" -le "$end" +do + call_merge "$msgnum" + continue_merge +done + +finish_rb_merge diff --git a/git-rebase.sh b/git-rebase.sh index ed349064a1..44e169fe15 100755 --- a/git-rebase.sh +++ b/git-rebase.sh @@ -48,7 +48,6 @@ strategy_opts= do_merge= merge_dir="$GIT_DIR"/rebase-merge apply_dir="$GIT_DIR"/rebase-apply -prec=4 verbose= diffstat= test "$(git config --bool rebase.stat)" = true && diffstat=t @@ -68,94 +67,13 @@ preserve_merges= autosquash= test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t -read_state () { - if test "$type" = merge - then - onto_name=$(cat "$state_dir"/onto_name) && - end=$(cat "$state_dir"/end) && - msgnum=$(cat "$state_dir"/msgnum) - fi && +read_basic_state () { head_name=$(cat "$state_dir"/head-name) && onto=$(cat "$state_dir"/onto) && orig_head=$(cat "$state_dir"/orig-head) && GIT_QUIET=$(cat "$state_dir"/quiet) } -continue_merge () { - test -d "$merge_dir" || die "$merge_dir directory does not exist" - - unmerged=$(git ls-files -u) - if test -n "$unmerged" - then - echo "You still have unmerged paths in your index" - echo "did you forget to use git add?" - die "$resolvemsg" - fi - - cmt=`cat "$merge_dir/current"` - if ! git diff-index --quiet --ignore-submodules HEAD -- - then - if ! git commit --no-verify -C "$cmt" - then - echo "Commit failed, please do not call \"git commit\"" - echo "directly, but instead do one of the following: " - die "$resolvemsg" - fi - if test -z "$GIT_QUIET" - then - printf "Committed: %0${prec}d " $msgnum - fi - echo "$cmt $(git rev-parse HEAD^0)" >> "$merge_dir/rewritten" - else - if test -z "$GIT_QUIET" - then - printf "Already applied: %0${prec}d " $msgnum - fi - fi - test -z "$GIT_QUIET" && - GIT_PAGER='' git log --format=%s -1 "$cmt" - - # onto the next patch: - msgnum=$(($msgnum + 1)) - echo "$msgnum" >"$merge_dir/msgnum" -} - -call_merge () { - cmt="$(cat "$merge_dir/cmt.$1")" - echo "$cmt" > "$merge_dir/current" - hd=$(git rev-parse --verify HEAD) - cmt_name=$(git symbolic-ref HEAD 2> /dev/null || echo HEAD) - msgnum=$(cat "$merge_dir/msgnum") - eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"' - eval GITHEAD_$hd='$onto_name' - export GITHEAD_$cmt GITHEAD_$hd - if test -n "$GIT_QUIET" - then - GIT_MERGE_VERBOSITY=1 && export GIT_MERGE_VERBOSITY - fi - test -z "$strategy" && strategy=recursive - eval 'git-merge-$strategy' $strategy_opts '"$cmt^" -- "$hd" "$cmt"' - rv=$? - case "$rv" in - 0) - unset GITHEAD_$cmt GITHEAD_$hd - return - ;; - 1) - git rerere $allow_rerere_autoupdate - die "$resolvemsg" - ;; - 2) - echo "Strategy: $rv $strategy failed, try another" 1>&2 - die "$resolvemsg" - ;; - *) - die "Unknown exit code ($rv) from command:" \ - "git-merge-$strategy $cmt^ -- HEAD $cmt" - ;; - esac -} - move_to_original_branch () { case "$head_name" in refs/*) @@ -168,23 +86,12 @@ move_to_original_branch () { esac } -finish_rb_merge () { - move_to_original_branch - git notes copy --for-rewrite=rebase < "$merge_dir"/rewritten - if test -x "$GIT_DIR"/hooks/post-rewrite && - test -s "$merge_dir"/rewritten; then - "$GIT_DIR"/hooks/post-rewrite rebase < "$merge_dir"/rewritten - fi - rm -r "$merge_dir" - say All done. -} - -run_interactive_rebase () { +run_specific_rebase () { if [ "$interactive_rebase" = implied ]; then GIT_EDITOR=: export GIT_EDITOR fi - . git-rebase--interactive + test "$type" != am && . git-rebase--$type } run_pre_rebase_hook () { @@ -341,7 +248,7 @@ test $# -gt 2 && usage if test -n "$action" then test -z "$in_progress" && die "No rebase in progress?" - test "$type" = interactive && run_interactive_rebase + test "$type" = interactive && run_specific_rebase fi case "$action" in @@ -352,44 +259,23 @@ continue) echo "mark them as resolved using git add" exit 1 } - read_state - if test -d "$merge_dir" - then - continue_merge - while test "$msgnum" -le "$end" - do - call_merge "$msgnum" - continue_merge - done - finish_rb_merge - exit - fi + read_basic_state + run_specific_rebase git am --resolved --3way --resolvemsg="$resolvemsg" && move_to_original_branch exit ;; skip) git reset --hard HEAD || exit $? - read_state - if test -d "$merge_dir" - then - git rerere clear - msgnum=$(($msgnum + 1)) - while test "$msgnum" -le "$end" - do - call_merge "$msgnum" - continue_merge - done - finish_rb_merge - exit - fi + read_basic_state + run_specific_rebase git am -3 --skip --resolvemsg="$resolvemsg" && move_to_original_branch exit ;; abort) git rerere clear - read_state + read_basic_state case "$head_name" in refs/*) git symbolic-ref HEAD $head_name || @@ -548,7 +434,7 @@ then GIT_PAGER='' git diff --stat --summary "$mb" "$onto" fi -test "$type" = interactive && run_interactive_rebase +test "$type" = interactive && run_specific_rebase # Detach HEAD and reset the tree say "First, rewinding head to replay your work on top of it..." @@ -590,30 +476,4 @@ fi # start doing a rebase with git-merge # this is rename-aware if the recursive (default) strategy is used -mkdir -p "$merge_dir" -echo "$onto_name" > "$merge_dir/onto_name" -echo "$head_name" > "$merge_dir/head-name" -echo "$onto" > "$merge_dir/onto" -echo "$orig_head" > "$merge_dir/orig-head" -echo "$GIT_QUIET" > "$merge_dir/quiet" - -msgnum=0 -for cmt in `git rev-list --reverse --no-merges "$revisions"` -do - msgnum=$(($msgnum + 1)) - echo "$cmt" > "$merge_dir/cmt.$msgnum" -done - -echo 1 >"$merge_dir/msgnum" -echo $msgnum >"$merge_dir/end" - -end=$msgnum -msgnum=1 - -while test "$msgnum" -le "$end" -do - call_merge "$msgnum" - continue_merge -done - -finish_rb_merge +run_specific_rebase -- 2.47.1