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-rw-r--r--apply.c35
1 files changed, 21 insertions, 14 deletions
diff --git a/apply.c b/apply.c
index 668b16e989..853d3ed385 100644
--- a/apply.c
+++ b/apply.c
@@ -21,6 +21,7 @@
#include "quote.h"
#include "rerere.h"
#include "apply.h"
+#include "entry.h"
struct gitdiff_data {
struct strbuf *root;
@@ -133,8 +134,6 @@ int check_apply_state(struct apply_state *state, int force_apply)
if (state->apply_with_reject && state->threeway)
return error(_("--reject and --3way cannot be used together."));
- if (state->cached && state->threeway)
- return error(_("--cached and --3way cannot be used together."));
if (state->threeway) {
if (is_not_gitdir)
return error(_("--3way outside a repository"));
@@ -1781,7 +1780,7 @@ static int parse_single_patch(struct apply_state *state,
struct fragment *fragment;
int len;
- fragment = xcalloc(1, sizeof(*fragment));
+ CALLOC_ARRAY(fragment, 1);
fragment->linenr = state->linenr;
len = parse_fragment(state, line, size, patch, fragment);
if (len <= 0) {
@@ -1959,7 +1958,7 @@ static struct fragment *parse_binary_hunk(struct apply_state *state,
size -= llen;
}
- frag = xcalloc(1, sizeof(*frag));
+ CALLOC_ARRAY(frag, 1);
frag->patch = inflate_it(data, hunk_size, origlen);
frag->free_patch = 1;
if (!frag->patch)
@@ -3569,10 +3568,10 @@ static int try_threeway(struct apply_state *state,
write_object_file("", 0, blob_type, &pre_oid);
else if (get_oid(patch->old_oid_prefix, &pre_oid) ||
read_blob_object(&buf, &pre_oid, patch->old_mode))
- return error(_("repository lacks the necessary blob to fall back on 3-way merge."));
+ return error(_("repository lacks the necessary blob to perform 3-way merge."));
- if (state->apply_verbosity > verbosity_silent)
- fprintf(stderr, _("Falling back to three-way merge...\n"));
+ if (state->apply_verbosity > verbosity_silent && patch->direct_to_threeway)
+ fprintf(stderr, _("Performing three-way merge...\n"));
img = strbuf_detach(&buf, &len);
prepare_image(&tmp_image, img, len, 1);
@@ -3604,7 +3603,7 @@ static int try_threeway(struct apply_state *state,
if (status < 0) {
if (state->apply_verbosity > verbosity_silent)
fprintf(stderr,
- _("Failed to fall back on three-way merge...\n"));
+ _("Failed to perform three-way merge...\n"));
return status;
}
@@ -3637,10 +3636,13 @@ static int apply_data(struct apply_state *state, struct patch *patch,
if (load_preimage(state, &image, patch, st, ce) < 0)
return -1;
- if (patch->direct_to_threeway ||
- apply_fragments(state, &image, patch) < 0) {
+ if (!state->threeway || try_threeway(state, &image, patch, st, ce) < 0) {
+ if (state->apply_verbosity > verbosity_silent &&
+ state->threeway && !patch->direct_to_threeway)
+ fprintf(stderr, _("Falling back to direct application...\n"));
+
/* Note: with --reject, apply_fragments() returns 0 */
- if (!state->threeway || try_threeway(state, &image, patch, st, ce) < 0)
+ if (patch->direct_to_threeway || apply_fragments(state, &image, patch) < 0)
return -1;
}
patch->result = image.buf;
@@ -4646,7 +4648,12 @@ static int write_out_results(struct apply_state *state, struct patch *list)
}
string_list_clear(&cpath, 0);
- repo_rerere(state->repo, 0);
+ /*
+ * rerere relies on the partially merged result being in the working
+ * tree with conflict markers, but that isn't written with --cached.
+ */
+ if (!state->cached)
+ repo_rerere(state->repo, 0);
}
return errs;
@@ -4681,7 +4688,7 @@ static int apply_patch(struct apply_state *state,
struct patch *patch;
int nr;
- patch = xcalloc(1, sizeof(*patch));
+ CALLOC_ARRAY(patch, 1);
patch->inaccurate_eof = !!(options & APPLY_OPT_INACCURATE_EOF);
patch->recount = !!(options & APPLY_OPT_RECOUNT);
nr = parse_chunk(state, buf.buf + offset, buf.len - offset, patch);
@@ -5017,7 +5024,7 @@ int apply_parse_options(int argc, const char **argv,
OPT_BOOL(0, "apply", force_apply,
N_("also apply the patch (use with --stat/--summary/--check)")),
OPT_BOOL('3', "3way", &state->threeway,
- N_( "attempt three-way merge if a patch does not apply")),
+ N_( "attempt three-way merge, fall back on normal patch if that fails")),
OPT_FILENAME(0, "build-fake-ancestor", &state->fake_ancestor,
N_("build a temporary index based on embedded index information")),
/* Think twice before adding "--nul" synonym to this */