#include "quote.h"
#include "xdiff-interface.h"
#include "cache-tree.h"
-#include "path-list.h"
+#include "string-list.h"
#include "mailmap.h"
#include "parse-options.h"
-static char blame_usage[] = "git-blame [options] [rev-opts] [rev] [--] file";
+static char blame_usage[] = "git blame [options] [rev-opts] [rev] [--] file";
static const char *blame_opt_usage[] = {
blame_usage,
static int reverse;
static int blank_boundary;
static int incremental;
-static int cmd_is_annotate;
static int xdl_opts = XDF_NEED_MINIMAL;
-static struct path_list mailmap;
+static struct string_list mailmap;
#ifndef DEBUG
#define DEBUG 0
*/
struct origin {
int refcnt;
+ struct origin *previous;
struct commit *commit;
mmfile_t file;
unsigned char blob_sha1[20];
static void origin_decref(struct origin *o)
{
if (o && --o->refcnt <= 0) {
+ if (o->previous)
+ origin_decref(o->previous);
free(o->file.ptr);
free(o);
}
*/
char guilty;
+ /* true if the entry has been scanned for copies in the current parent
+ */
+ char scanned;
+
/* the line number of the first line of this group in the
* suspect's file; internally all line numbers are 0 based.
*/
};
struct blame_diff_state {
- struct xdiff_emit_state xm;
struct patch *ret;
unsigned hunk_post_context;
unsigned hunk_in_pre_context : 1;
xpp.flags = xdl_opts;
memset(&xecfg, 0, sizeof(xecfg));
xecfg.ctxlen = context;
- ecb.outf = xdiff_outf;
- ecb.priv = &state;
memset(&state, 0, sizeof(state));
- state.xm.consume = process_u_diff;
state.ret = xmalloc(sizeof(struct patch));
state.ret->chunks = NULL;
state.ret->num = 0;
- xdi_diff(file_p, file_o, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(file_p, file_o, process_u_diff, &state, &xpp, &xecfg, &ecb);
if (state.ret->num) {
struct chunk *chunk;
while (made_progress) {
made_progress = 0;
for (e = sb->ent; e; e = e->next) {
- if (e->guilty || !same_suspect(e->suspect, target))
+ if (e->guilty || !same_suspect(e->suspect, target) ||
+ ent_score(sb, e) < blame_move_score)
continue;
find_copy_in_blob(sb, e, parent, split, &file_p);
if (split[1].suspect &&
*/
static struct blame_list *setup_blame_list(struct scoreboard *sb,
struct origin *target,
+ int min_score,
int *num_ents_p)
{
struct blame_entry *e;
struct blame_list *blame_list = NULL;
for (e = sb->ent, num_ents = 0; e; e = e->next)
- if (!e->guilty && same_suspect(e->suspect, target))
+ if (!e->scanned && !e->guilty &&
+ same_suspect(e->suspect, target) &&
+ min_score < ent_score(sb, e))
num_ents++;
if (num_ents) {
blame_list = xcalloc(num_ents, sizeof(struct blame_list));
for (e = sb->ent, i = 0; e; e = e->next)
- if (!e->guilty && same_suspect(e->suspect, target))
+ if (!e->scanned && !e->guilty &&
+ same_suspect(e->suspect, target) &&
+ min_score < ent_score(sb, e))
blame_list[i++].ent = e;
}
*num_ents_p = num_ents;
return blame_list;
}
+/*
+ * Reset the scanned status on all entries.
+ */
+static void reset_scanned_flag(struct scoreboard *sb)
+{
+ struct blame_entry *e;
+ for (e = sb->ent; e; e = e->next)
+ e->scanned = 0;
+}
+
/*
* For lines target is suspected for, see if we can find code movement
* across file boundary from the parent commit. porigin is the path
struct blame_list *blame_list;
int num_ents;
- blame_list = setup_blame_list(sb, target, &num_ents);
+ blame_list = setup_blame_list(sb, target, blame_copy_score, &num_ents);
if (!blame_list)
return 1; /* nothing remains for this target */
if (!DIFF_FILE_VALID(p->one))
continue; /* does not exist in parent */
+ if (S_ISGITLINK(p->one->mode))
+ continue; /* ignore git links */
if (porigin && !strcmp(p->one->path, porigin->path))
/* find_move already dealt with this path */
continue;
split_blame(sb, split, blame_list[j].ent);
made_progress = 1;
}
+ else
+ blame_list[j].ent->scanned = 1;
decref_split(split);
}
free(blame_list);
if (!made_progress)
break;
- blame_list = setup_blame_list(sb, target, &num_ents);
+ blame_list = setup_blame_list(sb, target, blame_copy_score, &num_ents);
if (!blame_list) {
retval = 1;
break;
}
}
+ reset_scanned_flag(sb);
diff_flush(&diff_opts);
diff_tree_release_paths(&diff_opts);
return retval;
struct origin *porigin = sg_origin[i];
if (!porigin)
continue;
+ if (!origin->previous) {
+ origin_incref(porigin);
+ origin->previous = porigin;
+ }
if (pass_blame_to_parent(sb, origin, porigin))
goto finish;
}
write_name_quoted(path, stdout, '\n');
}
+/*
+ * Porcelain/Incremental format wants to show a lot of details per
+ * commit. Instead of repeating this every line, emit it only once,
+ * the first time each commit appears in the output.
+ */
+static int emit_one_suspect_detail(struct origin *suspect)
+{
+ struct commit_info ci;
+
+ if (suspect->commit->object.flags & METAINFO_SHOWN)
+ return 0;
+
+ suspect->commit->object.flags |= METAINFO_SHOWN;
+ get_commit_info(suspect->commit, &ci, 1);
+ printf("author %s\n", ci.author);
+ printf("author-mail %s\n", ci.author_mail);
+ printf("author-time %lu\n", ci.author_time);
+ printf("author-tz %s\n", ci.author_tz);
+ printf("committer %s\n", ci.committer);
+ printf("committer-mail %s\n", ci.committer_mail);
+ printf("committer-time %lu\n", ci.committer_time);
+ printf("committer-tz %s\n", ci.committer_tz);
+ printf("summary %s\n", ci.summary);
+ if (suspect->commit->object.flags & UNINTERESTING)
+ printf("boundary\n");
+ if (suspect->previous) {
+ struct origin *prev = suspect->previous;
+ printf("previous %s ", sha1_to_hex(prev->commit->object.sha1));
+ write_name_quoted(prev->path, stdout, '\n');
+ }
+ return 1;
+}
+
/*
* The blame_entry is found to be guilty for the range. Mark it
* as such, and show it in incremental output.
printf("%s %d %d %d\n",
sha1_to_hex(suspect->commit->object.sha1),
ent->s_lno + 1, ent->lno + 1, ent->num_lines);
- if (!(suspect->commit->object.flags & METAINFO_SHOWN)) {
- struct commit_info ci;
- suspect->commit->object.flags |= METAINFO_SHOWN;
- get_commit_info(suspect->commit, &ci, 1);
- printf("author %s\n", ci.author);
- printf("author-mail %s\n", ci.author_mail);
- printf("author-time %lu\n", ci.author_time);
- printf("author-tz %s\n", ci.author_tz);
- printf("committer %s\n", ci.committer);
- printf("committer-mail %s\n", ci.committer_mail);
- printf("committer-time %lu\n", ci.committer_time);
- printf("committer-tz %s\n", ci.committer_tz);
- printf("summary %s\n", ci.summary);
- if (suspect->commit->object.flags & UNINTERESTING)
- printf("boundary\n");
- }
+ emit_one_suspect_detail(suspect);
write_filename_info(suspect->path);
maybe_flush_or_die(stdout, "stdout");
}
ent->s_lno + 1,
ent->lno + 1,
ent->num_lines);
- if (!(suspect->commit->object.flags & METAINFO_SHOWN)) {
- struct commit_info ci;
- suspect->commit->object.flags |= METAINFO_SHOWN;
- get_commit_info(suspect->commit, &ci, 1);
- printf("author %s\n", ci.author);
- printf("author-mail %s\n", ci.author_mail);
- printf("author-time %lu\n", ci.author_time);
- printf("author-tz %s\n", ci.author_tz);
- printf("committer %s\n", ci.committer);
- printf("committer-mail %s\n", ci.committer_mail);
- printf("committer-time %lu\n", ci.committer_time);
- printf("committer-tz %s\n", ci.committer_tz);
- write_filename_info(suspect->path);
- printf("summary %s\n", ci.summary);
- if (suspect->commit->object.flags & UNINTERESTING)
- printf("boundary\n");
- }
- else if (suspect->commit->object.flags & MORE_THAN_ONE_PATH)
+ if (emit_one_suspect_detail(suspect) ||
+ (suspect->commit->object.flags & MORE_THAN_ONE_PATH))
write_filename_info(suspect->path);
cp = nth_line(sb, ent->lno);
if (suspect->commit->object.flags & UNINTERESTING) {
if (blank_boundary)
memset(hex, ' ', length);
- else if (!cmd_is_annotate) {
+ else if (!(opt & OUTPUT_ANNOTATE_COMPAT)) {
length--;
putchar('^');
}
/*
* Add phony grafts for use with -S; this is primarily to
- * support git-cvsserver that wants to give a linear history
+ * support git's cvsserver that wants to give a linear history
* to its clients.
*/
static int read_ancestry(const char *graft_file)
baa = 1;
}
}
- for (ent = sb->ent; ent; ent = ent->next) {
- /* Mark the ones that haven't been checked */
- if (0 < ent->suspect->refcnt)
- ent->suspect->refcnt = -ent->suspect->refcnt;
- }
- for (ent = sb->ent; ent; ent = ent->next) {
- /*
- * ... then pick each and see if they have the the
- * correct refcnt.
- */
- int found;
- struct blame_entry *e;
- struct origin *suspect = ent->suspect;
-
- if (0 < suspect->refcnt)
- continue;
- suspect->refcnt = -suspect->refcnt; /* Unmark */
- for (found = 0, e = sb->ent; e; e = e->next) {
- if (e->suspect != suspect)
- continue;
- found++;
- }
- if (suspect->refcnt != found) {
- fprintf(stderr, "%s in %s has refcnt %d, not %d\n",
- ent->suspect->path,
- sha1_to_hex(ent->suspect->commit->object.sha1),
- ent->suspect->refcnt, found);
- baa = 2;
- }
- }
if (baa) {
int opt = 0160;
find_alignment(sb, &opt);
* Used for the command line parsing; check if the path exists
* in the working tree.
*/
-static int has_path_in_work_tree(const char *path)
+static int has_string_in_work_tree(const char *path)
{
struct stat st;
return !lstat(path, &st);
struct commit *commit;
struct origin *origin;
unsigned char head_sha1[20];
- struct strbuf buf;
+ struct strbuf buf = STRBUF_INIT;
const char *ident;
time_t now;
int size, len;
origin = make_origin(commit, path);
- strbuf_init(&buf, 0);
if (!contents_from || strcmp("-", contents_from)) {
struct stat st;
const char *read_from;
};
struct parse_opt_ctx_t ctx;
-
- cmd_is_annotate = !strcmp(argv[0], "annotate");
+ int cmd_is_annotate = !strcmp(argv[0], "annotate");
git_config(git_blame_config, NULL);
init_revisions(&revs, NULL);
parse_done:
argc = parse_options_end(&ctx);
+ if (cmd_is_annotate)
+ output_option |= OUTPUT_ANNOTATE_COMPAT;
+
+ if (DIFF_OPT_TST(&revs.diffopt, FIND_COPIES_HARDER))
+ opt |= (PICKAXE_BLAME_COPY | PICKAXE_BLAME_MOVE |
+ PICKAXE_BLAME_COPY_HARDER);
+
if (!blame_move_score)
blame_move_score = BLAME_DEFAULT_MOVE_SCORE;
if (!blame_copy_score)
if (argc < 2)
usage_with_options(blame_opt_usage, options);
path = add_prefix(prefix, argv[argc - 1]);
- if (argc == 3 && !has_path_in_work_tree(path)) { /* (2b) */
+ if (argc == 3 && !has_string_in_work_tree(path)) { /* (2b) */
path = add_prefix(prefix, argv[1]);
argv[1] = argv[2];
}
argv[argc - 1] = "--";
setup_work_tree();
- if (!has_path_in_work_tree(path))
+ if (!has_string_in_work_tree(path))
die("cannot stat path %s: %s", path, strerror(errno));
}