diff options
Diffstat (limited to 'git-mergetool.sh')
| -rwxr-xr-x | git-mergetool.sh | 340 |
1 files changed, 140 insertions, 200 deletions
diff --git a/git-mergetool.sh b/git-mergetool.sh index e62351bcba..b52a7410bc 100755 --- a/git-mergetool.sh +++ b/git-mergetool.sh @@ -5,12 +5,15 @@ # Copyright (c) 2006 Theodore Y. Ts'o # # This file is licensed under the GPL v2, or a later version -# at the discretion of Junio C Hammano. +# at the discretion of Junio C Hamano. # -USAGE='[--tool=tool] [file to merge] ...' +USAGE='[--tool=tool] [-y|--no-prompt|--prompt] [file to merge] ...' SUBDIRECTORY_OK=Yes +OPTIONS_SPEC= +TOOL_MODE=merge . git-sh-setup +. git-mergetool--lib require_work_tree # Returns true if the mode reflects a symlink @@ -32,7 +35,7 @@ base_present () { cleanup_temp_files () { if test "$1" = --save-backup ; then - mv -- "$BACKUP" "$path.orig" + mv -- "$BACKUP" "$MERGED.orig" rm -f -- "$LOCAL" "$REMOTE" "$BASE" else rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP" @@ -65,19 +68,19 @@ resolve_symlink_merge () { read ans case "$ans" in [lL]*) - git-checkout-index -f --stage=2 -- "$path" - git-add -- "$path" + git checkout-index -f --stage=2 -- "$MERGED" + git add -- "$MERGED" cleanup_temp_files --save-backup - return + return 0 ;; [rR]*) - git-checkout-index -f --stage=3 -- "$path" - git-add -- "$path" + git checkout-index -f --stage=3 -- "$MERGED" + git add -- "$MERGED" cleanup_temp_files --save-backup - return + return 0 ;; [aA]*) - exit 1 + return 1 ;; esac done @@ -93,81 +96,62 @@ resolve_deleted_merge () { read ans case "$ans" in [mMcC]*) - git-add -- "$path" + git add -- "$MERGED" cleanup_temp_files --save-backup - return + return 0 ;; [dD]*) - git-rm -- "$path" > /dev/null + git rm -- "$MERGED" > /dev/null cleanup_temp_files - return + return 0 ;; [aA]*) - exit 1 + return 1 ;; esac done } -check_unchanged () { - if test "$path" -nt "$BACKUP" ; then - status=0; - else - while true; do - echo "$path seems unchanged." - printf "Was the merge successful? [y/n] " - read answer < /dev/tty - case "$answer" in - y*|Y*) status=0; break ;; - n*|N*) status=1; break ;; - esac - done - fi -} - -save_backup () { - if test "$status" -eq 0; then - mv -- "$BACKUP" "$path.orig" - fi -} +checkout_staged_file () { + tmpfile=$(expr "$(git checkout-index --temp --stage="$1" "$2")" : '\([^ ]*\) ') -remove_backup () { - if test "$status" -eq 0; then - rm "$BACKUP" + if test $? -eq 0 -a -n "$tmpfile" ; then + mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3" fi } merge_file () { - path="$1" + MERGED="$1" - f=`git-ls-files -u -- "$path"` + f=$(git ls-files -u -- "$MERGED") if test -z "$f" ; then - if test ! -f "$path" ; then - echo "$path: file not found" + if test ! -f "$MERGED" ; then + echo "$MERGED: file not found" else - echo "$path: file does not need merging" + echo "$MERGED: file does not need merging" fi - exit 1 + return 1 fi - BACKUP="$path.BACKUP.$$" - LOCAL="$path.LOCAL.$$" - REMOTE="$path.REMOTE.$$" - BASE="$path.BASE.$$" + ext="$$$(expr "$MERGED" : '.*\(\.[^/]*\)$')" + BACKUP="./$MERGED.BACKUP.$ext" + LOCAL="./$MERGED.LOCAL.$ext" + REMOTE="./$MERGED.REMOTE.$ext" + BASE="./$MERGED.BASE.$ext" - mv -- "$path" "$BACKUP" - cp -- "$BACKUP" "$path" + mv -- "$MERGED" "$BACKUP" + cp -- "$BACKUP" "$MERGED" - base_mode=`git ls-files -u -- "$path" | awk '{if ($3==1) print $1;}'` - local_mode=`git ls-files -u -- "$path" | awk '{if ($3==2) print $1;}'` - remote_mode=`git ls-files -u -- "$path" | awk '{if ($3==3) print $1;}'` + base_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==1) print $1;}') + local_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $1;}') + remote_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $1;}') - base_present && git cat-file blob ":1:$path" > "$BASE" 2>/dev/null - local_present && git cat-file blob ":2:$path" > "$LOCAL" 2>/dev/null - remote_present && git cat-file blob ":3:$path" > "$REMOTE" 2>/dev/null + base_present && checkout_staged_file 1 "$MERGED" "$BASE" + local_present && checkout_staged_file 2 "$MERGED" "$LOCAL" + remote_present && checkout_staged_file 3 "$MERGED" "$REMOTE" if test -z "$local_mode" -o -z "$remote_mode"; then - echo "Deleted merge conflict for '$path':" + echo "Deleted merge conflict for '$MERGED':" describe_file "$local_mode" "local" "$LOCAL" describe_file "$remote_mode" "remote" "$REMOTE" resolve_deleted_merge @@ -175,100 +159,58 @@ merge_file () { fi if is_symlink "$local_mode" || is_symlink "$remote_mode"; then - echo "Symbolic link merge conflict for '$path':" + echo "Symbolic link merge conflict for '$MERGED':" describe_file "$local_mode" "local" "$LOCAL" describe_file "$remote_mode" "remote" "$REMOTE" resolve_symlink_merge return fi - echo "Normal merge conflict for '$path':" + echo "Normal merge conflict for '$MERGED':" describe_file "$local_mode" "local" "$LOCAL" describe_file "$remote_mode" "remote" "$REMOTE" - printf "Hit return to start merge resolution tool (%s): " "$merge_tool" - read ans - - case "$merge_tool" in - kdiff3) - if base_present ; then - (kdiff3 --auto --L1 "$path (Base)" -L2 "$path (Local)" --L3 "$path (Remote)" \ - -o "$path" -- "$BASE" "$LOCAL" "$REMOTE" > /dev/null 2>&1) - else - (kdiff3 --auto -L1 "$path (Local)" --L2 "$path (Remote)" \ - -o "$path" -- "$LOCAL" "$REMOTE" > /dev/null 2>&1) - fi - status=$? - remove_backup - ;; - tkdiff) - if base_present ; then - tkdiff -a "$BASE" -o "$path" -- "$LOCAL" "$REMOTE" - else - tkdiff -o "$path" -- "$LOCAL" "$REMOTE" - fi - status=$? - save_backup - ;; - meld|vimdiff) - touch "$BACKUP" - $merge_tool -- "$LOCAL" "$path" "$REMOTE" - check_unchanged - save_backup - ;; - xxdiff) - touch "$BACKUP" - if base_present ; then - xxdiff -X --show-merged-pane \ - -R 'Accel.SaveAsMerged: "Ctrl-S"' \ - -R 'Accel.Search: "Ctrl+F"' \ - -R 'Accel.SearchForward: "Ctrl-G"' \ - --merged-file "$path" -- "$LOCAL" "$BASE" "$REMOTE" - else - xxdiff -X --show-merged-pane \ - -R 'Accel.SaveAsMerged: "Ctrl-S"' \ - -R 'Accel.Search: "Ctrl+F"' \ - -R 'Accel.SearchForward: "Ctrl-G"' \ - --merged-file "$path" -- "$LOCAL" "$REMOTE" - fi - check_unchanged - save_backup - ;; - opendiff) - touch "$BACKUP" - if base_present; then - opendiff "$LOCAL" "$REMOTE" -ancestor "$BASE" -merge "$path" | cat - else - opendiff "$LOCAL" "$REMOTE" -merge "$path" | cat - fi - check_unchanged - save_backup - ;; - emerge) - if base_present ; then - emacs -f emerge-files-with-ancestor-command "$LOCAL" "$REMOTE" "$BASE" "$path" - else - emacs -f emerge-files-command "$LOCAL" "$REMOTE" "$path" - fi - status=$? - save_backup - ;; - esac - if test "$status" -ne 0; then - echo "merge of $path failed" 1>&2 - mv -- "$BACKUP" "$path" - exit 1 + if "$prompt" = true; then + printf "Hit return to start merge resolution tool (%s): " "$merge_tool" + read ans + fi + + if base_present; then + present=true + else + present=false + fi + + if ! run_merge_tool "$merge_tool" "$present"; then + echo "merge of $MERGED failed" 1>&2 + mv -- "$BACKUP" "$MERGED" + + if test "$merge_keep_temporaries" = "false"; then + cleanup_temp_files + fi + + return 1 fi - git add -- "$path" + + if test "$merge_keep_backup" = "true"; then + mv -- "$BACKUP" "$MERGED.orig" + else + rm -- "$BACKUP" + fi + + git add -- "$MERGED" cleanup_temp_files + return 0 } -while case $# in 0) break ;; esac +prompt=$(git config --bool mergetool.prompt || echo true) + +while test $# != 0 do case "$1" in -t|--tool*) case "$#,$1" in *,*=*) - merge_tool=`expr "z$1" : 'z-[^=]*=\(.*\)'` + merge_tool=$(expr "z$1" : 'z-[^=]*=\(.*\)') ;; 1,*) usage ;; @@ -277,7 +219,14 @@ do shift ;; esac ;; + -y|--no-prompt) + prompt=false + ;; + --prompt) + prompt=true + ;; --) + shift break ;; -*) @@ -290,76 +239,67 @@ do shift done -if test -z "$merge_tool"; then - merge_tool=`git-config merge.tool` - case "$merge_tool" in - kdiff3 | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | "") - ;; # happy - *) - echo >&2 "git config option merge.tool set to unknown tool: $merge_tool" - echo >&2 "Resetting to default..." - unset merge_tool - ;; - esac -fi +prompt_after_failed_merge() { + while true; do + printf "Continue merging other unresolved paths (y/n) ? " + read ans + case "$ans" in -if test -z "$merge_tool" ; then - if type kdiff3 >/dev/null 2>&1 && test -n "$DISPLAY"; then - merge_tool="kdiff3"; - elif type tkdiff >/dev/null 2>&1 && test -n "$DISPLAY"; then - merge_tool=tkdiff - elif type xxdiff >/dev/null 2>&1 && test -n "$DISPLAY"; then - merge_tool=xxdiff - elif type meld >/dev/null 2>&1 && test -n "$DISPLAY"; then - merge_tool=meld - elif type opendiff >/dev/null 2>&1; then - merge_tool=opendiff - elif type emacs >/dev/null 2>&1; then - merge_tool=emerge - elif type vimdiff >/dev/null 2>&1; then - merge_tool=vimdiff - else - echo "No available merge resolution programs available." - exit 1 - fi + [yY]*) + return 0 + ;; + + [nN]*) + return 1 + ;; + esac + done +} + +if test -z "$merge_tool"; then + merge_tool=$(get_merge_tool "$merge_tool") || exit fi +merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)" +merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)" -case "$merge_tool" in - kdiff3|tkdiff|meld|xxdiff|vimdiff|opendiff) - if ! type "$merge_tool" > /dev/null 2>&1; then - echo "The merge tool $merge_tool is not available" - exit 1 - fi - ;; - emerge) - if ! type "emacs" > /dev/null 2>&1; then - echo "Emacs is not available" - exit 1 - fi - ;; - *) - echo "Unknown merge tool: $merge_tool" - exit 1 - ;; -esac +last_status=0 +rollup_status=0 if test $# -eq 0 ; then - files=`git ls-files -u | sed -e 's/^[^ ]* //' | sort -u` - if test -z "$files" ; then - echo "No files need merging" - exit 0 + files=$(git ls-files -u | sed -e 's/^[^ ]* //' | sort -u) + if test -z "$files" ; then + echo "No files need merging" + exit 0 + fi + echo Merging the files: "$files" + git ls-files -u | + sed -e 's/^[^ ]* //' | + sort -u | + while IFS= read i + do + if test $last_status -ne 0; then + prompt_after_failed_merge < /dev/tty || exit 1 fi - echo Merging the files: $files - git ls-files -u | sed -e 's/^[^ ]* //' | sort -u | while read i - do - printf "\n" - merge_file "$i" < /dev/tty > /dev/tty - done + printf "\n" + merge_file "$i" < /dev/tty > /dev/tty + last_status=$? + if test $last_status -ne 0; then + rollup_status=1 + fi + done else - while test $# -gt 0; do - printf "\n" - merge_file "$1" - shift - done + while test $# -gt 0; do + if test $last_status -ne 0; then + prompt_after_failed_merge || exit 1 + fi + printf "\n" + merge_file "$1" + last_status=$? + if test $last_status -ne 0; then + rollup_status=1 + fi + shift + done fi -exit 0 + +exit $rollup_status |