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-rwxr-xr-xgit-mergetool.sh86
1 files changed, 64 insertions, 22 deletions
diff --git a/git-mergetool.sh b/git-mergetool.sh
index 332528f..d20581c 100755
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -10,11 +10,11 @@
USAGE='[--tool=tool] [--tool-help] [-y|--no-prompt|--prompt] [file to merge] ...'
SUBDIRECTORY_OK=Yes
+NONGIT_OK=Yes
OPTIONS_SPEC=
TOOL_MODE=merge
. git-sh-setup
. git-mergetool--lib
-require_work_tree
# Returns true if the mode reflects a symlink
is_symlink () {
@@ -37,6 +37,19 @@ base_present () {
test -n "$base_mode"
}
+mergetool_tmpdir_init () {
+ if test "$(git config --bool mergetool.writeToTemp)" != true
+ then
+ MERGETOOL_TMPDIR=.
+ return 0
+ fi
+ if MERGETOOL_TMPDIR=$(mktemp -d -t "git-mergetool-XXXXXX" 2>/dev/null)
+ then
+ return 0
+ fi
+ die "error: mktemp is needed when 'mergetool.writeToTemp' is true"
+}
+
cleanup_temp_files () {
if test "$1" = --save-backup
then
@@ -46,6 +59,10 @@ cleanup_temp_files () {
else
rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
fi
+ if test "$MERGETOOL_TMPDIR" != "."
+ then
+ rmdir "$MERGETOOL_TMPDIR"
+ fi
}
describe_file () {
@@ -205,7 +222,7 @@ checkout_staged_file () {
"$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
: '\([^ ]*\) ')
- if test $? -eq 0 -a -n "$tmpfile"
+ if test $? -eq 0 && test -n "$tmpfile"
then
mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
else
@@ -228,11 +245,27 @@ merge_file () {
return 1
fi
- ext="$$$(expr "$MERGED" : '.*\(\.[^/]*\)$')"
- BACKUP="./$MERGED.BACKUP.$ext"
- LOCAL="./$MERGED.LOCAL.$ext"
- REMOTE="./$MERGED.REMOTE.$ext"
- BASE="./$MERGED.BASE.$ext"
+ if BASE=$(expr "$MERGED" : '\(.*\)\.[^/]*$')
+ then
+ ext=$(expr "$MERGED" : '.*\(\.[^/]*\)$')
+ else
+ BASE=$MERGED
+ ext=
+ fi
+
+ mergetool_tmpdir_init
+
+ if test "$MERGETOOL_TMPDIR" != "."
+ then
+ # If we're using a temporary directory then write to the
+ # top-level of that directory.
+ BASE=${BASE##*/}
+ fi
+
+ BACKUP="$MERGETOOL_TMPDIR/${BASE}_BACKUP_$$$ext"
+ LOCAL="$MERGETOOL_TMPDIR/${BASE}_LOCAL_$$$ext"
+ REMOTE="$MERGETOOL_TMPDIR/${BASE}_REMOTE_$$$ext"
+ BASE="$MERGETOOL_TMPDIR/${BASE}_BASE_$$$ext"
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 $1;}')
@@ -256,7 +289,7 @@ merge_file () {
checkout_staged_file 2 "$MERGED" "$LOCAL"
checkout_staged_file 3 "$MERGED" "$REMOTE"
- if test -z "$local_mode" -o -z "$remote_mode"
+ if test -z "$local_mode" || test -z "$remote_mode"
then
echo "Deleted merge conflict for '$MERGED':"
describe_file "$local_mode" "local" "$LOCAL"
@@ -277,7 +310,7 @@ merge_file () {
echo "Normal merge conflict for '$MERGED':"
describe_file "$local_mode" "local" "$LOCAL"
describe_file "$remote_mode" "remote" "$REMOTE"
- if "$prompt" = true
+ if test "$guessed_merge_tool" = true || test "$prompt" = true
then
printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
read ans || return 1
@@ -315,11 +348,16 @@ merge_file () {
return 0
}
-prompt=$(git config --bool mergetool.prompt || echo true)
+prompt=$(git config --bool mergetool.prompt)
+guessed_merge_tool=false
while test $# != 0
do
case "$1" in
+ --tool-help=*)
+ TOOL_MODE=${1#--tool-help=}
+ show_tool_help
+ ;;
--tool-help)
show_tool_help
;;
@@ -371,15 +409,23 @@ prompt_after_failed_merge () {
done
}
+git_dir_init
+require_work_tree
+
if test -z "$merge_tool"
then
- merge_tool=$(get_merge_tool "$merge_tool") || exit
+ # Check if a merge tool has been configured
+ merge_tool=$(get_configured_merge_tool)
+ # Try to guess an appropriate merge tool if no tool has been set.
+ if test -z "$merge_tool"
+ then
+ merge_tool=$(guess_merge_tool) || exit
+ guessed_merge_tool=true
+ fi
fi
merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
-last_status=0
-rollup_status=0
files=
if test $# -eq 0
@@ -407,19 +453,15 @@ printf "%s\n" "$files"
IFS='
'
+rc=0
for i in $files
do
- if test $last_status -ne 0
- then
- prompt_after_failed_merge || exit 1
- fi
printf "\n"
- merge_file "$i"
- last_status=$?
- if test $last_status -ne 0
+ if ! merge_file "$i"
then
- rollup_status=1
+ rc=1
+ prompt_after_failed_merge || exit 1
fi
done
-exit $rollup_status
+exit $rc