diff: accept -- when using --no-index

Accept -- as an "end of options" marker even when using --no-index.
Previously, the -- triggered a "normal" index/tree diff and subsequently
failed because of the unrecognized (in that mode) --no-index.

Note that the second loop can treat '--' as a normal option, because
the preceding checks ensure it is the third-to-last argument.

While at it, fix the parsing of "-q" option in --no-index mode as well.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/diff-no-index.c b/diff-no-index.c
index b60d3455dae14a7a2cf2daeec8eb47fc7dcd9a09..39868e2a8fa47e91f8d21814ac433b516fc9535c 100644 (file)
--- a/diff-no-index.c
+++ b/diff-no-index.c
@@ -173,8 +173,10 @@ void diff_no_index(struct rev_info *revs,
 
        /* Were we asked to do --no-index explicitly? */
        for (i = 1; i < argc; i++) {
-               if (!strcmp(argv[i], "--"))
-                       return;
+               if (!strcmp(argv[i], "--")) {
+                       i++;
+                       break;
+               }
                if (!strcmp(argv[i], "--no-index"))
                        no_index = 1;
                if (argv[i][0] != '-')
@@ -212,8 +214,10 @@ void diff_no_index(struct rev_info *revs,
                int j;
                if (!strcmp(argv[i], "--no-index"))
                        i++;
-               else if (!strcmp(argv[1], "-q"))
+               else if (!strcmp(argv[i], "-q"))
                        options |= DIFF_SILENT_ON_REMOVED;
+               else if (!strcmp(argv[i], "--"))
+                       i++;
                else {
                        j = diff_opt_parse(&revs->diffopt, argv + i, argc - i);
                        if (!j)

diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index aeb5405cfeee83f13f3d543db2eba07f1fb5c241..aba53202f84b6c6c16a68f45ccfa42368e47d421 100755 (executable)
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -261,6 +261,7 @@ diff --patch-with-stat -r initial..side
 diff --patch-with-raw -r initial..side
 diff --name-status dir2 dir
 diff --no-index --name-status dir2 dir
+diff --no-index --name-status -- dir2 dir
 diff master master^ side
 EOF
 

diff --git a/t/t4013/diff.diff_--no-index_--name-status_--_dir2_dir b/t/t4013/diff.diff_--no-index_--name-status_--_dir2_dir
new file mode 100644 (file)
index 0000000..6756f8d
--- /dev/null
+++ b/t/t4013/diff.diff_--no-index_--name-status_--_dir2_dir
@@ -0,0 +1,3 @@
+$ git diff --no-index --name-status -- dir2 dir
+A      dir/sub
+$