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index 7099b53c72dd3d4f586b6ae4ba7583738225523c..d830b293fdacb851909908f5ce4c1366ba669124 100644 (file)
--- a/blame.c
+++ b/blame.c
#define DEBUG 0
-static const char blame_usage[] = "git-blame [-c] [-l] [-t] [-S <revs-file>] [--] file [commit]\n"
- " -c, --compatibility Use the same output mode as git-annotate (Default: off)\n"
- " -l, --long Show long commit SHA1 (Default: off)\n"
- " -t, --time Show raw timestamp (Default: off)\n"
- " -S, --revs-file Use revisions from revs-file instead of calling git-rev-list\n"
- " -h, --help This message";
+static const char blame_usage[] =
+"git-blame [-c] [-l] [-t] [-S <revs-file>] [--] file [commit]\n"
+" -c, --compatibility Use the same output mode as git-annotate (Default: off)\n"
+" -l, --long Show long commit SHA1 (Default: off)\n"
+" -t, --time Show raw timestamp (Default: off)\n"
+" -S, --revs-file Use revisions from revs-file instead of calling git-rev-list\n"
+" -h, --help This message";
static struct commit **blame_lines;
static int num_blame_lines;
-static char* blame_contents;
+static char *blame_contents;
static int blame_len;
struct util_info {
char *buf;
unsigned long size;
int num_lines;
- const char* pathname;
+ const char *pathname;
- void* topo_data;
+ void *topo_data;
};
struct chunk {
static void get_blob(struct commit *commit);
/* Only used for statistics */
-static int num_get_patch = 0;
-static int num_commits = 0;
-static int patch_time = 0;
+static int num_get_patch;
+static int num_commits;
+static int patch_time;
struct blame_diff_state {
struct xdiff_emit_state xm;
@@ -156,27 +157,21 @@ static int get_blob_sha1_internal(const unsigned char *sha1, const char *base,
unsigned mode, int stage);
static unsigned char blob_sha1[20];
-static const char* blame_file;
+static const char *blame_file;
static int get_blob_sha1(struct tree *t, const char *pathname,
unsigned char *sha1)
{
- int i;
const char *pathspec[2];
blame_file = pathname;
pathspec[0] = pathname;
pathspec[1] = NULL;
- memset(blob_sha1, 0, sizeof(blob_sha1));
+ hashclr(blob_sha1);
read_tree_recursive(t, "", 0, 0, pathspec, get_blob_sha1_internal);
- for (i = 0; i < 20; i++) {
- if (blob_sha1[i] != 0)
- break;
- }
-
- if (i == 20)
+ if (is_null_sha1(blob_sha1))
return -1;
- memcpy(sha1, blob_sha1, 20);
+ hashcpy(sha1, blob_sha1);
return 0;
}
strcmp(blame_file + baselen, pathname))
return -1;
- memcpy(blob_sha1, sha1, 20);
+ hashcpy(blob_sha1, sha1);
return -1;
}
if (i < util->num_lines) {
num = util->line_map[i];
printf("%d\t", num);
- } else
+ }
+ else
printf("\t");
if (i < util2->num_lines) {
printf("%d\t", num2);
if (num != -1 && num2 != num)
printf("---");
- } else
+ }
+ else
printf("\t");
printf("\n");
int cur_chunk = 0;
int i1, i2;
- if (p->num && DEBUG)
- print_patch(p);
-
- if (DEBUG)
+ if (DEBUG) {
+ if (p->num)
+ print_patch(p);
printf("num lines 1: %d num lines 2: %d\n", util->num_lines,
util2->num_lines);
+ }
for (i1 = 0, i2 = 0; i1 < util->num_lines; i1++, i2++) {
struct chunk *chunk = NULL;
i2 += chunk->len2;
cur_chunk++;
- } else {
+ }
+ else {
if (i2 >= util2->num_lines)
break;
return info->line_map[line];
}
-static struct util_info* get_util(struct commit *commit)
+static struct util_info *get_util(struct commit *commit)
{
struct util_info *util = commit->util;
assert(util);
assert(util->pathname);
- if (get_blob_sha1(commit->tree, util->pathname, util->sha1))
- return 1;
- else
- return 0;
+ return !!get_blob_sha1(commit->tree, util->pathname, util->sha1);
}
static void alloc_line_map(struct commit *commit)
if (util->buf[i] == '\n')
util->num_lines++;
}
- if(util->buf[util->size - 1] != '\n')
+ if (util->buf[util->size - 1] != '\n')
util->num_lines++;
util->line_map = xmalloc(sizeof(int) * util->num_lines);
util->line_map[i] = -1;
}
-static void init_first_commit(struct commit* commit, const char* filename)
+static void init_first_commit(struct commit *commit, const char *filename)
{
- struct util_info* util = commit->util;
+ struct util_info *util = commit->util;
int i;
util->pathname = filename;
util->line_map[i] = i;
}
-
static void process_commits(struct rev_info *rev, const char *path,
- struct commit** initial)
+ struct commit **initial)
{
int i;
- struct util_info* util;
+ struct util_info *util;
int lines_left;
int *blame_p;
int *new_lines;
int new_lines_len;
- struct commit* commit = get_revision(rev);
+ struct commit *commit = get_revision(rev);
assert(commit);
init_first_commit(commit, path);
parents != NULL; parents = parents->next)
num_parents++;
- if(num_parents == 0)
+ if (num_parents == 0)
*initial = commit;
if (fill_util_info(commit))
} while ((commit = get_revision(rev)) != NULL);
}
-
-static int compare_tree_path(struct rev_info* revs,
- struct commit* c1, struct commit* c2)
+static int compare_tree_path(struct rev_info *revs,
+ struct commit *c1, struct commit *c2)
{
int ret;
- const char* paths[2];
- struct util_info* util = c2->util;
+ const char *paths[2];
+ struct util_info *util = c2->util;
paths[0] = util->pathname;
paths[1] = NULL;
return ret;
}
-
-static int same_tree_as_empty_path(struct rev_info *revs, struct tree* t1,
- const char* path)
+static int same_tree_as_empty_path(struct rev_info *revs, struct tree *t1,
+ const char *path)
{
int ret;
- const char* paths[2];
+ const char *paths[2];
paths[0] = path;
paths[1] = NULL;
return ret;
}
-static const char* find_rename(struct commit* commit, struct commit* parent)
+static const char *find_rename(struct commit *commit, struct commit *parent)
{
- struct util_info* cutil = commit->util;
+ struct util_info *cutil = commit->util;
struct diff_options diff_opts;
const char *paths[1];
int i;
for (i = 0; i < diff_queued_diff.nr; i++) {
struct diff_filepair *p = diff_queued_diff.queue[i];
- if (p->status == 'R' && !strcmp(p->one->path, cutil->pathname)) {
+ if (p->status == 'R' &&
+ !strcmp(p->one->path, cutil->pathname)) {
if (DEBUG)
- printf("rename %s -> %s\n", p->one->path, p->two->path);
+ printf("rename %s -> %s\n",
+ p->one->path, p->two->path);
return p->two->path;
}
}
return;
if (!commit->parents) {
- struct util_info* util = commit->util;
+ struct util_info *util = commit->util;
if (!same_tree_as_empty_path(revs, commit->tree,
util->pathname))
commit->object.flags |= TREECHANGE;
case REV_TREE_NEW:
{
-
- struct util_info* util = commit->util;
+ struct util_info *util = commit->util;
if (revs->remove_empty_trees &&
same_tree_as_empty_path(revs, p->tree,
util->pathname)) {
- const char* new_name = find_rename(commit, p);
+ const char *new_name = find_rename(commit, p);
if (new_name) {
- struct util_info* putil = get_util(p);
+ struct util_info *putil = get_util(p);
if (!putil->pathname)
- putil->pathname = strdup(new_name);
- } else {
+ putil->pathname = xstrdup(new_name);
+ }
+ else {
*pp = parent->next;
continue;
}
commit->object.flags |= TREECHANGE;
}
-
struct commit_info
{
- char* author;
- char* author_mail;
+ char *author;
+ char *author_mail;
unsigned long author_time;
- char* author_tz;
+ char *author_tz;
};
-static void get_commit_info(struct commit* commit, struct commit_info* ret)
+static void get_commit_info(struct commit *commit, struct commit_info *ret)
{
int len;
- char* tmp;
+ char *tmp;
static char author_buf[1024];
tmp = strstr(commit->buffer, "\nauthor ") + 8;
tmp = ret->author;
tmp += len;
*tmp = 0;
- while(*tmp != ' ')
+ while (*tmp != ' ')
tmp--;
ret->author_tz = tmp+1;
*tmp = 0;
- while(*tmp != ' ')
+ while (*tmp != ' ')
tmp--;
ret->author_time = strtoul(tmp, NULL, 10);
*tmp = 0;
- while(*tmp != ' ')
+ while (*tmp != ' ')
tmp--;
ret->author_mail = tmp + 1;
*tmp = 0;
}
-static const char* format_time(unsigned long time, const char* tz_str,
+static const char *format_time(unsigned long time, const char *tz_str,
int show_raw_time)
{
static char time_buf[128];
return time_buf;
}
-static void topo_setter(struct commit* c, void* data)
+static void topo_setter(struct commit *c, void *data)
{
- struct util_info* util = c->util;
+ struct util_info *util = c->util;
util->topo_data = data;
}
-static void* topo_getter(struct commit* c)
+static void *topo_getter(struct commit *c)
{
- struct util_info* util = c->util;
+ struct util_info *util = c->util;
return util->topo_data;
}
int compatibility = 0;
int show_raw_time = 0;
int options = 1;
- struct commit* start_commit;
+ struct commit *start_commit;
- const char* args[10];
+ const char *args[10];
struct rev_info rev;
struct commit_info ci;
const char *buf;
int max_digits;
int longest_file, longest_author;
- int found_rename;
+ int show_name = 0;
- const char* prefix = setup_git_directory();
+ const char *prefix = setup_git_directory();
git_config(git_default_config);
- for(i = 1; i < argc; i++) {
- if(options) {
- if(!strcmp(argv[i], "-h") ||
+ for (i = 1; i < argc; i++) {
+ if (options) {
+ if (!strcmp(argv[i], "-h") ||
!strcmp(argv[i], "--help"))
usage(blame_usage);
- else if(!strcmp(argv[i], "-l") ||
- !strcmp(argv[i], "--long")) {
+ if (!strcmp(argv[i], "-l") ||
+ !strcmp(argv[i], "--long")) {
sha1_len = 40;
continue;
- } else if(!strcmp(argv[i], "-c") ||
- !strcmp(argv[i], "--compatibility")) {
+ }
+ if (!strcmp(argv[i], "-c") ||
+ !strcmp(argv[i], "--compatibility")) {
compatibility = 1;
continue;
- } else if(!strcmp(argv[i], "-t") ||
- !strcmp(argv[i], "--time")) {
+ }
+ if (!strcmp(argv[i], "-t") ||
+ !strcmp(argv[i], "--time")) {
show_raw_time = 1;
continue;
- } else if(!strcmp(argv[i], "-S")) {
+ }
+ if (!strcmp(argv[i], "-S")) {
if (i + 1 < argc &&
!read_ancestry(argv[i + 1], &sha1_p)) {
compatibility = 1;
continue;
}
usage(blame_usage);
- } else if(!strcmp(argv[i], "--")) {
+ }
+ if (!strcmp(argv[i], "-f") ||
+ !strcmp(argv[i], "--show-name")) {
+ show_name = 1;
+ continue;
+ }
+ if (!strcmp(argv[i], "--")) {
options = 0;
continue;
- } else if(argv[i][0] == '-')
+ }
+ if (argv[i][0] == '-')
usage(blame_usage);
- else
- options = 0;
+ options = 0;
}
- if(!options) {
- if(!filename)
+ if (!options) {
+ if (!filename)
filename = argv[i];
- else if(!commit)
+ else if (!commit)
commit = argv[i];
else
usage(blame_usage);
}
}
- if(!filename)
+ if (!filename)
usage(blame_usage);
if (commit && sha1_p)
usage(blame_usage);
- else if(!commit)
+ else if (!commit)
commit = "HEAD";
- if(prefix)
+ if (prefix)
sprintf(filename_buf, "%s%s", prefix, filename);
else
strcpy(filename_buf, filename);
return 1;
}
-
init_revisions(&rev, setup_git_directory());
rev.remove_empty_trees = 1;
rev.topo_order = 1;
longest_file = 0;
longest_author = 0;
- found_rename = 0;
for (i = 0; i < num_blame_lines; i++) {
struct commit *c = blame_lines[i];
- struct util_info* u;
+ struct util_info *u;
if (!c)
c = initial;
u = c->util;
- if (!found_rename && strcmp(filename, u->pathname))
- found_rename = 1;
+ if (!show_name && strcmp(filename, u->pathname))
+ show_name = 1;
if (longest_file < strlen(u->pathname))
longest_file = strlen(u->pathname);
get_commit_info(c, &ci);
for (i = 0; i < num_blame_lines; i++) {
struct commit *c = blame_lines[i];
- struct util_info* u;
-
+ struct util_info *u;
if (!c)
c = initial;
-
u = c->util;
+
get_commit_info(c, &ci);
fwrite(sha1_to_hex(c->object.sha1), sha1_len, 1, stdout);
- if(compatibility) {
+ if (compatibility) {
printf("\t(%10s\t%10s\t%d)", ci.author,
format_time(ci.author_time, ci.author_tz,
show_raw_time),
i+1);
- } else {
- if (found_rename)
+ }
+ else {
+ if (show_name)
printf(" %-*.*s", longest_file, longest_file,
u->pathname);
printf(" (%-*.*s %10s %*d) ",
max_digits, i+1);
}
- if(i == num_blame_lines - 1) {
+ if (i == num_blame_lines - 1) {
fwrite(buf, blame_len - (buf - blame_contents),
1, stdout);
- if(blame_contents[blame_len-1] != '\n')
+ if (blame_contents[blame_len-1] != '\n')
putc('\n', stdout);
- } else {
- char* next_buf = strchr(buf, '\n') + 1;
+ }
+ else {
+ char *next_buf = strchr(buf, '\n') + 1;
fwrite(buf, next_buf - buf, 1, stdout);
buf = next_buf;
}