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-rw-r--r--builtin/blame.c135
1 files changed, 96 insertions, 39 deletions
diff --git a/builtin/blame.c b/builtin/blame.c
index ed5d01b36..c27ef21c2 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -22,12 +22,12 @@
#include "utf8.h"
#include "userdiff.h"
-static char blame_usage[] = "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,
"",
- "[rev-opts] are documented in git-rev-list(1)",
+ N_("[rev-opts] are documented in git-rev-list(1)"),
NULL
};
@@ -2069,6 +2069,55 @@ static int git_blame_config(const char *var, const char *value, void *cb)
return git_default_config(var, value, cb);
}
+static void verify_working_tree_path(struct commit *work_tree, const char *path)
+{
+ struct commit_list *parents;
+
+ for (parents = work_tree->parents; parents; parents = parents->next) {
+ const unsigned char *commit_sha1 = parents->item->object.sha1;
+ unsigned char blob_sha1[20];
+ unsigned mode;
+
+ if (!get_tree_entry(commit_sha1, path, blob_sha1, &mode) &&
+ sha1_object_info(blob_sha1, NULL) == OBJ_BLOB)
+ return;
+ }
+ die("no such path '%s' in HEAD", path);
+}
+
+static struct commit_list **append_parent(struct commit_list **tail, const unsigned char *sha1)
+{
+ struct commit *parent;
+
+ parent = lookup_commit_reference(sha1);
+ if (!parent)
+ die("no such commit %s", sha1_to_hex(sha1));
+ return &commit_list_insert(parent, tail)->next;
+}
+
+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);
+ if (merge_head < 0) {
+ if (errno == ENOENT)
+ return;
+ die("cannot open '%s' for reading", merge_head_file);
+ }
+
+ 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);
+ tail = append_parent(tail, sha1);
+ }
+ close(merge_head);
+ strbuf_release(&line);
+}
+
/*
* Prepare a dummy commit that represents the work tree (or staged) item.
* Note that annotating work tree item never works in the reverse.
@@ -2079,6 +2128,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
{
struct commit *commit;
struct origin *origin;
+ struct commit_list **parent_tail, *parent;
unsigned char head_sha1[20];
struct strbuf buf = STRBUF_INIT;
const char *ident;
@@ -2086,20 +2136,38 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
int size, len;
struct cache_entry *ce;
unsigned mode;
-
- if (get_sha1("HEAD", head_sha1))
- die("No such ref: HEAD");
+ struct strbuf msg = STRBUF_INIT;
time(&now);
commit = xcalloc(1, sizeof(*commit));
- commit->parents = xcalloc(1, sizeof(*commit->parents));
- commit->parents->item = lookup_commit_reference(head_sha1);
commit->object.parsed = 1;
commit->date = now;
commit->object.type = OBJ_COMMIT;
+ parent_tail = &commit->parents;
+
+ if (!resolve_ref_unsafe("HEAD", head_sha1, 1, NULL))
+ die("no such ref: HEAD");
+
+ parent_tail = append_parent(parent_tail, head_sha1);
+ append_merge_parents(parent_tail);
+ verify_working_tree_path(commit, path);
origin = make_origin(commit, path);
+ ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0);
+ strbuf_addstr(&msg, "tree 0000000000000000000000000000000000000000\n");
+ for (parent = commit->parents; parent; parent = parent->next)
+ strbuf_addf(&msg, "parent %s\n",
+ sha1_to_hex(parent->item->object.sha1));
+ strbuf_addf(&msg,
+ "author %s\n"
+ "committer %s\n\n"
+ "Version of %s from %s\n",
+ ident, ident, path,
+ (!contents_from ? path :
+ (!strcmp(contents_from, "-") ? "standard input" : contents_from)));
+ commit->buffer = strbuf_detach(&msg, NULL);
+
if (!contents_from || strcmp("-", contents_from)) {
struct stat st;
const char *read_from;
@@ -2136,7 +2204,6 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
}
else {
/* Reading from stdin */
- contents_from = "standard input";
mode = 0;
if (strbuf_read(&buf, 0, 0) < 0)
die_errno("failed to read from stdin");
@@ -2181,16 +2248,6 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
*/
cache_tree_invalidate_path(active_cache_tree, path);
- commit->buffer = xmalloc(400);
- ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0);
- snprintf(commit->buffer, 400,
- "tree 0000000000000000000000000000000000000000\n"
- "parent %s\n"
- "author %s\n"
- "committer %s\n\n"
- "Version of %s from %s\n",
- sha1_to_hex(head_sha1),
- ident, ident, path, contents_from ? contents_from : path);
return commit;
}
@@ -2313,27 +2370,27 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
static const char *revs_file = NULL;
static const char *contents_from = NULL;
static const struct option options[] = {
- OPT_BOOLEAN(0, "incremental", &incremental, "Show blame entries as we find them, incrementally"),
- OPT_BOOLEAN('b', NULL, &blank_boundary, "Show blank SHA-1 for boundary commits (Default: off)"),
- OPT_BOOLEAN(0, "root", &show_root, "Do not treat root commits as boundaries (Default: off)"),
- OPT_BOOLEAN(0, "show-stats", &show_stats, "Show work cost statistics"),
- OPT_BIT(0, "score-debug", &output_option, "Show output score for blame entries", OUTPUT_SHOW_SCORE),
- OPT_BIT('f', "show-name", &output_option, "Show original filename (Default: auto)", OUTPUT_SHOW_NAME),
- OPT_BIT('n', "show-number", &output_option, "Show original linenumber (Default: off)", OUTPUT_SHOW_NUMBER),
- OPT_BIT('p', "porcelain", &output_option, "Show in a format designed for machine consumption", OUTPUT_PORCELAIN),
- OPT_BIT(0, "line-porcelain", &output_option, "Show porcelain format with per-line commit information", OUTPUT_PORCELAIN|OUTPUT_LINE_PORCELAIN),
- OPT_BIT('c', NULL, &output_option, "Use the same output mode as git-annotate (Default: off)", OUTPUT_ANNOTATE_COMPAT),
- OPT_BIT('t', NULL, &output_option, "Show raw timestamp (Default: off)", OUTPUT_RAW_TIMESTAMP),
- OPT_BIT('l', NULL, &output_option, "Show long commit SHA1 (Default: off)", OUTPUT_LONG_OBJECT_NAME),
- OPT_BIT('s', NULL, &output_option, "Suppress author name and timestamp (Default: off)", OUTPUT_NO_AUTHOR),
- OPT_BIT('e', "show-email", &output_option, "Show author email instead of name (Default: off)", OUTPUT_SHOW_EMAIL),
- OPT_BIT('w', NULL, &xdl_opts, "Ignore whitespace differences", XDF_IGNORE_WHITESPACE),
- OPT_BIT(0, "minimal", &xdl_opts, "Spend extra cycles to find better match", XDF_NEED_MINIMAL),
- OPT_STRING('S', NULL, &revs_file, "file", "Use revisions from <file> instead of calling git-rev-list"),
- OPT_STRING(0, "contents", &contents_from, "file", "Use <file>'s contents as the final image"),
- { OPTION_CALLBACK, 'C', NULL, &opt, "score", "Find line copies within and across files", PARSE_OPT_OPTARG, blame_copy_callback },
- { OPTION_CALLBACK, 'M', NULL, &opt, "score", "Find line movements within and across files", PARSE_OPT_OPTARG, blame_move_callback },
- OPT_CALLBACK('L', NULL, &bottomtop, "n,m", "Process only line range n,m, counting from 1", blame_bottomtop_callback),
+ OPT_BOOLEAN(0, "incremental", &incremental, N_("Show blame entries as we find them, incrementally")),
+ OPT_BOOLEAN('b', NULL, &blank_boundary, N_("Show blank SHA-1 for boundary commits (Default: off)")),
+ OPT_BOOLEAN(0, "root", &show_root, N_("Do not treat root commits as boundaries (Default: off)")),
+ OPT_BOOLEAN(0, "show-stats", &show_stats, N_("Show work cost statistics")),
+ OPT_BIT(0, "score-debug", &output_option, N_("Show output score for blame entries"), OUTPUT_SHOW_SCORE),
+ OPT_BIT('f', "show-name", &output_option, N_("Show original filename (Default: auto)"), OUTPUT_SHOW_NAME),
+ OPT_BIT('n', "show-number", &output_option, N_("Show original linenumber (Default: off)"), OUTPUT_SHOW_NUMBER),
+ OPT_BIT('p', "porcelain", &output_option, N_("Show in a format designed for machine consumption"), OUTPUT_PORCELAIN),
+ OPT_BIT(0, "line-porcelain", &output_option, N_("Show porcelain format with per-line commit information"), OUTPUT_PORCELAIN|OUTPUT_LINE_PORCELAIN),
+ OPT_BIT('c', NULL, &output_option, N_("Use the same output mode as git-annotate (Default: off)"), OUTPUT_ANNOTATE_COMPAT),
+ OPT_BIT('t', NULL, &output_option, N_("Show raw timestamp (Default: off)"), OUTPUT_RAW_TIMESTAMP),
+ OPT_BIT('l', NULL, &output_option, N_("Show long commit SHA1 (Default: off)"), OUTPUT_LONG_OBJECT_NAME),
+ OPT_BIT('s', NULL, &output_option, N_("Suppress author name and timestamp (Default: off)"), OUTPUT_NO_AUTHOR),
+ OPT_BIT('e', "show-email", &output_option, N_("Show author email instead of name (Default: off)"), OUTPUT_SHOW_EMAIL),
+ OPT_BIT('w', NULL, &xdl_opts, N_("Ignore whitespace differences"), XDF_IGNORE_WHITESPACE),
+ OPT_BIT(0, "minimal", &xdl_opts, N_("Spend extra cycles to find better match"), XDF_NEED_MINIMAL),
+ OPT_STRING('S', NULL, &revs_file, N_("file"), N_("Use revisions from <file> instead of calling git-rev-list")),
+ OPT_STRING(0, "contents", &contents_from, N_("file"), N_("Use <file>'s contents as the final image")),
+ { OPTION_CALLBACK, 'C', NULL, &opt, N_("score"), N_("Find line copies within and across files"), PARSE_OPT_OPTARG, blame_copy_callback },
+ { OPTION_CALLBACK, 'M', NULL, &opt, N_("score"), N_("Find line movements within and across files"), PARSE_OPT_OPTARG, blame_move_callback },
+ OPT_CALLBACK('L', NULL, &bottomtop, N_("n,m"), N_("Process only line range n,m, counting from 1"), blame_bottomtop_callback),
OPT__ABBREV(&abbrev),
OPT_END()
};
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-08 08:46:39 +0000