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-rw-r--r--builtin/blame.c88
1 files changed, 53 insertions, 35 deletions
diff --git a/builtin/blame.c b/builtin/blame.c
index 303e217ae9..295ce92da5 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -6,6 +6,7 @@
*/
#include "cache.h"
+#include "refs.h"
#include "builtin.h"
#include "blob.h"
#include "commit.h"
@@ -26,13 +27,14 @@
#include "userdiff.h"
#include "line-range.h"
#include "line-log.h"
+#include "dir.h"
-static char blame_usage[] = N_("git blame [options] [rev-opts] [rev] [--] file");
+static char blame_usage[] = N_("git blame [<options>] [<rev-opts>] [<rev>] [--] <file>");
static const char *blame_opt_usage[] = {
blame_usage,
"",
- N_("[rev-opts] are documented in git-rev-list(1)"),
+ N_("<rev-opts> are documented in git-rev-list(1)"),
NULL
};
@@ -49,7 +51,7 @@ static int xdl_opts;
static int abbrev = -1;
static int no_whole_file_rename;
-static enum date_mode blame_date_mode = DATE_ISO8601;
+static struct date_mode blame_date_mode = { DATE_ISO8601 };
static size_t blame_date_width;
static struct string_list mailmap;
@@ -972,7 +974,10 @@ static void pass_blame_to_parent(struct scoreboard *sb,
fill_origin_blob(&sb->revs->diffopt, target, &file_o);
num_get_patch++;
- diff_hunks(&file_p, &file_o, 0, blame_chunk_cb, &d);
+ if (diff_hunks(&file_p, &file_o, 0, blame_chunk_cb, &d))
+ die("unable to generate diff (%s -> %s)",
+ sha1_to_hex(parent->commit->object.sha1),
+ sha1_to_hex(target->commit->object.sha1));
/* The rest are the same as the parent */
blame_chunk(&d.dstq, &d.srcq, INT_MAX, d.offset, INT_MAX, parent);
*d.dstq = NULL;
@@ -1118,7 +1123,9 @@ static void find_copy_in_blob(struct scoreboard *sb,
* file_p partially may match that image.
*/
memset(split, 0, sizeof(struct blame_entry [3]));
- diff_hunks(file_p, &file_o, 1, handle_split_cb, &d);
+ if (diff_hunks(file_p, &file_o, 1, handle_split_cb, &d))
+ die("unable to generate diff (%s)",
+ sha1_to_hex(parent->commit->object.sha1));
/* remainder, if any, all match the preimage */
handle_split(sb, ent, d.tlno, d.plno, ent->num_lines, parent, split);
}
@@ -1364,8 +1371,15 @@ static void pass_whole_blame(struct scoreboard *sb,
*/
static struct commit_list *first_scapegoat(struct rev_info *revs, struct commit *commit)
{
- if (!reverse)
+ if (!reverse) {
+ if (revs->first_parent_only &&
+ commit->parents &&
+ commit->parents->next) {
+ free_commit_list(commit->parents->next);
+ commit->parents->next = NULL;
+ }
return commit->parents;
+ }
return lookup_decoration(&revs->children, &commit->object);
}
@@ -1826,7 +1840,7 @@ static const char *format_time(unsigned long time, const char *tz_str,
size_t time_width;
int tz;
tz = atoi(tz_str);
- time_str = show_date(time, tz, blame_date_mode);
+ time_str = show_date(time, tz, &blame_date_mode);
strbuf_addstr(&time_buf, time_str);
/*
* Add space paddings to time_buf to display a fixed width
@@ -2085,7 +2099,6 @@ static void find_alignment(struct scoreboard *sb, int *option)
for (e = sb->ent; e; e = e->next) {
struct origin *suspect = e->suspect;
- struct commit_info ci;
int num;
if (compute_auto_abbrev)
@@ -2096,6 +2109,7 @@ static void find_alignment(struct scoreboard *sb, int *option)
if (longest_file < num)
longest_file = num;
if (!(suspect->commit->object.flags & METAINFO_SHOWN)) {
+ struct commit_info ci;
suspect->commit->object.flags |= METAINFO_SHOWN;
get_commit_info(suspect->commit, &ci, 1);
if (*option & OUTPUT_SHOW_EMAIL)
@@ -2104,6 +2118,7 @@ static void find_alignment(struct scoreboard *sb, int *option)
num = utf8_strwidth(ci.author.buf);
if (longest_author < num)
longest_author = num;
+ commit_info_destroy(&ci);
}
num = e->s_lno + e->num_lines;
if (longest_src_lines < num)
@@ -2113,8 +2128,6 @@ static void find_alignment(struct scoreboard *sb, int *option)
longest_dst_lines = num;
if (largest_score < ent_score(sb, e))
largest_score = ent_score(sb, e);
-
- commit_info_destroy(&ci);
}
max_orig_digits = decimal_width(longest_src_lines);
max_digits = decimal_width(longest_dst_lines);
@@ -2152,16 +2165,6 @@ static void sanity_check_refcnt(struct scoreboard *sb)
}
}
-/*
- * Used for the command line parsing; check if the path exists
- * in the working tree.
- */
-static int has_string_in_work_tree(const char *path)
-{
- struct stat st;
- return !lstat(path, &st);
-}
-
static unsigned parse_score(const char *arg)
{
char *end;
@@ -2186,10 +2189,18 @@ static int git_blame_config(const char *var, const char *value, void *cb)
blank_boundary = git_config_bool(var, value);
return 0;
}
+ if (!strcmp(var, "blame.showemail")) {
+ int *output_option = cb;
+ if (git_config_bool(var, value))
+ *output_option |= OUTPUT_SHOW_EMAIL;
+ else
+ *output_option &= ~OUTPUT_SHOW_EMAIL;
+ return 0;
+ }
if (!strcmp(var, "blame.date")) {
if (!value)
return config_error_nonbool(var);
- blame_date_mode = parse_date_format(value);
+ parse_date_format(value, &blame_date_mode);
return 0;
}
@@ -2228,20 +2239,19 @@ static struct commit_list **append_parent(struct commit_list **tail, const unsig
static void append_merge_parents(struct commit_list **tail)
{
int merge_head;
- const char *merge_head_file = git_path("MERGE_HEAD");
struct strbuf line = STRBUF_INIT;
- merge_head = open(merge_head_file, O_RDONLY);
+ merge_head = open(git_path_merge_head(), O_RDONLY);
if (merge_head < 0) {
if (errno == ENOENT)
return;
- die("cannot open '%s' for reading", merge_head_file);
+ die("cannot open '%s' for reading", git_path_merge_head());
}
while (!strbuf_getwholeline_fd(&line, merge_head, '\n')) {
unsigned char sha1[20];
if (line.len < 40 || get_sha1_hex(line.buf, sha1))
- die("unknown line in '%s': %s", merge_head_file, line.buf);
+ die("unknown line in '%s': %s", git_path_merge_head(), line.buf);
tail = append_parent(tail, sha1);
}
close(merge_head);
@@ -2349,6 +2359,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
if (strbuf_read(&buf, 0, 0) < 0)
die_errno("failed to read from stdin");
}
+ convert_to_git(path, buf.buf, buf.len, &buf, 0);
origin->file.ptr = buf.buf;
origin->file.size = buf.len;
pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_sha1);
@@ -2390,7 +2401,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
return commit;
}
-static const char *prepare_final(struct scoreboard *sb)
+static char *prepare_final(struct scoreboard *sb)
{
int i;
const char *final_commit_name = NULL;
@@ -2415,10 +2426,10 @@ static const char *prepare_final(struct scoreboard *sb)
sb->final = (struct commit *) obj;
final_commit_name = revs->pending.objects[i].name;
}
- return final_commit_name;
+ return xstrdup_or_null(final_commit_name);
}
-static const char *prepare_initial(struct scoreboard *sb)
+static char *prepare_initial(struct scoreboard *sb)
{
int i;
const char *final_commit_name = NULL;
@@ -2445,7 +2456,7 @@ static const char *prepare_initial(struct scoreboard *sb)
}
if (!final_commit_name)
die("No commit to dig down to?");
- return final_commit_name;
+ return xstrdup(final_commit_name);
}
static int blame_copy_callback(const struct option *option, const char *arg, int unset)
@@ -2489,7 +2500,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
struct origin *o;
struct blame_entry *ent = NULL;
long dashdash_pos, lno;
- const char *final_commit_name = NULL;
+ char *final_commit_name = NULL;
enum object_type type;
static struct string_list range_list;
@@ -2529,7 +2540,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
unsigned int range_i;
long anchor;
- git_config(git_blame_config, NULL);
+ git_config(git_blame_config, &output_option);
init_revisions(&revs, NULL);
revs.date_mode = blame_date_mode;
DIFF_OPT_SET(&revs.diffopt, ALLOW_TEXTCONV);
@@ -2570,13 +2581,13 @@ parse_done:
if (cmd_is_annotate) {
output_option |= OUTPUT_ANNOTATE_COMPAT;
- blame_date_mode = DATE_ISO8601;
+ blame_date_mode.type = DATE_ISO8601;
} else {
blame_date_mode = revs.date_mode;
}
/* The maximum width used to show the dates */
- switch (blame_date_mode) {
+ switch (blame_date_mode.type) {
case DATE_RFC2822:
blame_date_width = sizeof("Thu, 19 Oct 2006 16:00:04 -0700");
break;
@@ -2605,6 +2616,9 @@ parse_done:
case DATE_NORMAL:
blame_date_width = sizeof("Thu Oct 19 16:00:04 2006 -0700");
break;
+ case DATE_STRFTIME:
+ blame_date_width = strlen(show_date(0, 0, &blame_date_mode)) + 1; /* add the null */
+ break;
}
blame_date_width -= 1; /* strip the null */
@@ -2656,14 +2670,14 @@ parse_done:
if (argc < 2)
usage_with_options(blame_opt_usage, options);
path = add_prefix(prefix, argv[argc - 1]);
- if (argc == 3 && !has_string_in_work_tree(path)) { /* (2b) */
+ if (argc == 3 && !file_exists(path)) { /* (2b) */
path = add_prefix(prefix, argv[1]);
argv[1] = argv[2];
}
argv[argc - 1] = "--";
setup_work_tree();
- if (!has_string_in_work_tree(path))
+ if (!file_exists(path))
die_errno("cannot stat path '%s'", path);
}
@@ -2678,6 +2692,8 @@ parse_done:
}
else if (contents_from)
die("--contents and --children do not blend well.");
+ else if (revs.first_parent_only)
+ die("combining --first-parent and --reverse is not supported");
else {
final_commit_name = prepare_initial(&sb);
sb.commits.compare = compare_commits_by_reverse_commit_date;
@@ -2786,6 +2802,8 @@ parse_done:
assign_blame(&sb, opt);
+ free(final_commit_name);
+
if (incremental)
return 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 21:11:46 +0000