packaging: Add contrib installation

[platform/upstream/git.git] / git-mergetool--lib.sh

diff --git a/git-mergetool--lib.sh b/git-mergetool--lib.sh
index 204a5ac..78f3647 100644 (file)
--- a/git-mergetool--lib.sh
+++ b/git-mergetool--lib.sh
@@ -43,7 +43,16 @@ show_tool_names () {
 
        shown_any=
        ( cd "$MERGE_TOOLS_DIR" && ls ) | {
-               while read toolname
+               while read scriptname
+               do
+                       setup_tool "$scriptname" 2>/dev/null
+                       # We need an actual line feed here
+                       variants="$variants
+$(list_tool_variants)"
+               done
+               variants="$(echo "$variants" | sort -u)"
+
+               for toolname in $variants
                do
                        if setup_tool "$toolname" 2>/dev/null &&
                                (eval "$condition" "$toolname")
@@ -131,6 +140,10 @@ setup_user_tool () {
        merge_cmd () {
                ( eval $merge_tool_cmd )
        }
+
+       list_tool_variants () {
+               echo "$tool"
+       }
 }
 
 setup_tool () {
@@ -157,6 +170,10 @@ setup_tool () {
                echo "$1"
        }
 
+       list_tool_variants () {
+               echo "$tool"
+       }
+
        # Most tools' exit codes cannot be trusted, so By default we ignore
        # their exit code and check the merged file's modification time in
        # check_unchanged() to determine whether or not the merge was
@@ -178,19 +195,26 @@ setup_tool () {
                false
        }
 
-
-       if ! test -f "$MERGE_TOOLS_DIR/$tool"
+       if test -f "$MERGE_TOOLS_DIR/$tool"
        then
+               . "$MERGE_TOOLS_DIR/$tool"
+       elif test -f "$MERGE_TOOLS_DIR/${tool%[0-9]}"
+       then
+               . "$MERGE_TOOLS_DIR/${tool%[0-9]}"
+       else
                setup_user_tool
                return $?
        fi
 
-       # Load the redefined functions
-       . "$MERGE_TOOLS_DIR/$tool"
        # Now let the user override the default command for the tool.  If
        # they have not done so then this will return 1 which we ignore.
        setup_user_tool
 
+       if ! list_tool_variants | grep -q "^$tool$"
+       then
+               return 1
+       fi
+
        if merge_mode && ! can_merge
        then
                echo "error: '$tool' can not be used to resolve merges" >&2
@@ -286,11 +310,14 @@ list_merge_tool_candidates () {
                tools="$tools smerge"
        fi
        case "${VISUAL:-$EDITOR}" in
+       *nvim*)
+               tools="$tools nvimdiff vimdiff emerge"
+               ;;
        *vim*)
-               tools="$tools vimdiff emerge"
+               tools="$tools vimdiff nvimdiff emerge"
                ;;
        *)
-               tools="$tools emerge vimdiff"
+               tools="$tools emerge vimdiff nvimdiff"
                ;;
        esac
 }