Re: Feature Request: user defined suffix for temp files created by git-mergetool

@@ -8,7 +8,7 @@ git-mergetool - Run merge conflict resolution tools to resolve merge conflicts
 SYNOPSIS
 --------
 [verse]
-'git mergetool' [--tool=<tool>] [-y | --[no-]prompt] [<file>...]
+'git mergetool' [--tool=<tool>] [-y | --[no-]prompt] [--local=<name>] [--remote=<name>] [--backup=<name>] [--base=<name>] [<file>...]
 
 DESCRIPTION
 -----------

@@ -79,6 +79,30 @@ success of the resolution after the custom tool has exited.
 	Prompt before each invocation of the merge resolution program
 	to give the user a chance to skip the path.
 
+--local=<name>::
+	Use string from <name> as part of suffix of name of temporary
+	file (local) for merging. If not used or is equal with any
+	other (remote|backup|base), default value is used.
+	Default suffix is LOCAL.
+
+--remote=<name>::
+	Use string from <name> as part of suffix of name of temporary
+	file (remote) for merging. If not used or is equal with any
+	other (local|backup|base), default value is used.
+	Default suffix is REMOTE.
+
+--backup=<name>::
+	Use string from <name> as part of suffix of name of temporary
+	file (backup) for merging. If not used or is equal with any
+	other (local|remote|base), default value is used.
+	Default suffix is BACKUP.
+
+--base=<name>::
+	Use string from <name> as part of suffix of name of temporary
+	file (base) for merging. If not used or is equal with any
+	other (local|remote|backup), default value is used.
+	Default suffix is BASE.
+
 TEMPORARY FILES
 ---------------
 `git mergetool` creates `*.orig` backup files while resolving merges.

@@ -8,11 +8,18 @@
 # at the discretion of Junio C Hamano.
 #
 
-USAGE='[--tool=tool] [--tool-help] [-y|--no-prompt|--prompt] [file to merge] ...'
+USAGE='[--tool=tool] [--tool-help] [-y|--no-prompt|--prompt] [--local=name] [--remote=name] [--backup=name] [--base=name] [file to merge] ...'
 SUBDIRECTORY_OK=Yes
 NONGIT_OK=Yes
 OPTIONS_SPEC=
 TOOL_MODE=merge
+
+#optional name space convention
+local_name=""
+remote_name=""
+base_name=""
+backup_name=""
+
 . git-sh-setup
 . git-mergetool--lib
 

@@ -271,10 +278,33 @@ merge_file () {
 		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"
+	if [ "$local_name" != "" ]  && [ "$local_name" != "$remote_name" ] && [ "$local_name" != "$backup_name" ] && [ "$local_name" != "$base_name" ]
+	then
+		LOCAL="$MERGETOOL_TMPDIR/${BASE}_${local_name}_$$$ext"
+	else
+		LOCAL="$MERGETOOL_TMPDIR/${BASE}_LOCAL_$$$ext"
+	fi
+
+	if [ "$remote_name" != "" ] && [ "$remote_name" != "$local_name" ] && [ "$remote_name" != "$backup_name" ] && [ "$remote_name" != "$base_name" ]
+	then
+		REMOTE="$MERGETOOL_TMPDIR/${BASE}_${remote_name}_$$$ext"
+	else
+		REMOTE="$MERGETOOL_TMPDIR/${BASE}_REMOTE_$$$ext"
+	fi
+
+	if [ "$backup_name" != "" ] && [ "$backup_name" != "$local_name" ] && [ "$backup_name" != "$remote_name" ] && [ "$backup_name" != "$base_name" ]
+	then
+		BACKUP="$MERGETOOL_TMPDIR/${BASE}_${backup_name}_$$$ext"
+	else
+		BACKUP="$MERGETOOL_TMPDIR/${BASE}_BACKUP_$$$ext"
+	fi
+
+	if [ "$base_name" != "" ] && [ "$base_name" != "$local_name" ] && [ "$base_name" != "$remote_name" ] && [ "$base_name" != "$backup_name" ]
+	then
+		BASE="$MERGETOOL_TMPDIR/${BASE}_${base_name}_$$$ext"
+	else
+		BASE="$MERGETOOL_TMPDIR/${BASE}_BASE_$$$ext"
+	fi
 
 	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;}')

@@ -396,6 +426,18 @@ do
 	--prompt)
 		prompt=true
 		;;
+	--local=*)
+		local_name=${1#--local=}
+		;;
+	--remote=*)
+		remote_name=${1#--remote=}
+		;;
+	--base=*)
+		base_name=${1#--base=}
+		;;
+	--backup=*)
+		backup_name=${1#--backup=}
+		;;
 	--)
 		shift
 		break