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-rw-r--r--builtin/diff-index.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/builtin/diff-index.c b/builtin/diff-index.c
index 7f5281c461..cf09559e42 100644
--- a/builtin/diff-index.c
+++ b/builtin/diff-index.c
@@ -2,6 +2,7 @@
#include "cache.h"
#include "config.h"
#include "diff.h"
+#include "diff-merges.h"
#include "commit.h"
#include "revision.h"
#include "builtin.h"
@@ -25,7 +26,13 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix)
git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
repo_init_revisions(the_repository, &rev, prefix);
rev.abbrev = 0;
- precompose_argv(argc, argv);
+ prefix = precompose_argv_prefix(argc, argv, prefix);
+
+ /*
+ * We need no diff for merges options, and we need to avoid conflict
+ * with our own meaning of "-m".
+ */
+ diff_merges_suppress_options_parsing();
argc = setup_revisions(argc, argv, &rev, NULL);
for (i = 1; i < argc; i++) {
@@ -35,12 +42,16 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix)
option |= DIFF_INDEX_CACHED;
else if (!strcmp(arg, "--merge-base"))
option |= DIFF_INDEX_MERGE_BASE;
+ else if (!strcmp(arg, "-m"))
+ rev.match_missing = 1;
else
usage(diff_cache_usage);
}
if (!rev.diffopt.output_format)
rev.diffopt.output_format = DIFF_FORMAT_RAW;
+ rev.diffopt.rotate_to_strict = 1;
+
/*
* Make sure there is one revision (i.e. pending object),
* and there is no revision filtering parameters.