string-list: document that string_list_insert() inserts unique strings

[git.git] / git-mergetool.sh

diff --git a/git-mergetool.sh b/git-mergetool.sh
index b6d463f0d057361ab5909209d24fc8fd383a3dbb..a9f23f7fcdff610f2b206bc121db7c9217bbf0c7 100755 (executable)
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -181,10 +181,14 @@ stage_submodule () {
 }
 
 checkout_staged_file () {
-    tmpfile=$(expr "$(git checkout-index --temp --stage="$1" "$2")" : '\([^    ]*\)    ')
+    tmpfile=$(expr \
+           "$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
+           : '\([^     ]*\)    ')
 
     if test $? -eq 0 -a -n "$tmpfile" ; then
        mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
+    else
+       >"$3"
     fi
 }
 
@@ -224,9 +228,9 @@ merge_file () {
     mv -- "$MERGED" "$BACKUP"
     cp -- "$BACKUP" "$MERGED"
 
-    base_present   && checkout_staged_file 1 "$MERGED" "$BASE"
-    local_present  && checkout_staged_file 2 "$MERGED" "$LOCAL"
-    remote_present && checkout_staged_file 3 "$MERGED" "$REMOTE"
+    checkout_staged_file 1 "$MERGED" "$BASE"
+    checkout_staged_file 2 "$MERGED" "$LOCAL"
+    checkout_staged_file 3 "$MERGED" "$REMOTE"
 
     if test -z "$local_mode" -o -z "$remote_mode"; then
        echo "Deleted merge conflict for '$MERGED':"
@@ -342,64 +346,42 @@ merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo fa
 
 last_status=0
 rollup_status=0
-rerere=false
-
-files_to_merge() {
-    if test "$rerere" = true
-    then
-       git rerere remaining
-    else
-       git ls-files -u | sed -e 's/^[^ ]*      //' | sort -u
-    fi
-}
-
+files=
 
 if test $# -eq 0 ; then
     cd_to_toplevel
 
     if test -e "$GIT_DIR/MERGE_RR"
     then
-       rerere=true
-    fi
-
-    files=$(files_to_merge)
-    if test -z "$files" ; then
-       echo "No files need merging"
-       exit 0
+       files=$(git rerere remaining)
+    else
+       files=$(git ls-files -u | sed -e 's/^[^ ]*      //' | sort -u)
     fi
+else
+    files=$(git ls-files -u -- "$@" | sed -e 's/^[^    ]*      //' | sort -u)
+fi
 
-    # Save original stdin
-    exec 3<&0
+if test -z "$files" ; then
+    echo "No files need merging"
+    exit 0
+fi
 
-    printf "Merging:\n"
-    printf "$files\n"
+printf "Merging:\n"
+printf "$files\n"
 
-    files_to_merge |
-    while IFS= read i
-    do
-       if test $last_status -ne 0; then
-           prompt_after_failed_merge <&3 || exit 1
-       fi
-       printf "\n"
-       merge_file "$i" <&3
-       last_status=$?
-       if test $last_status -ne 0; then
-           rollup_status=1
-       fi
-    done
-else
-    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
+IFS='
+'
+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; then
+       rollup_status=1
+    fi
+done
 
 exit $rollup_status