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git-blame: Make the output human readable
The default output mode is slightly different from git-annotate's. However, git-annotate's output mode can be obtained by using the '-c' flag. Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Fredrik Kuivinen
Junio C Hamano
parent
ea5ed3abce
commit
ea4c7f9bf6
4
Makefile
4
Makefile
@ -534,6 +534,10 @@ git-rev-list$X: rev-list.o $(LIB_FILE)
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$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
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$(LIBS) $(OPENSSL_LIBSSL)
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git-blame$X: blame.o $(LIB_FILE)
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$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
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$(LIBS) -lm
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init-db.o: init-db.c
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$(CC) -c $(ALL_CFLAGS) \
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-DDEFAULT_GIT_TEMPLATE_DIR='"$(template_dir_SQ)"' $*.c
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162
blame.c
162
blame.c
@ -5,6 +5,7 @@
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#include <assert.h>
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#include <time.h>
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#include <sys/time.h>
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#include <math.h>
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#include "cache.h"
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#include "refs.h"
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@ -17,8 +18,15 @@
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#define DEBUG 0
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struct commit **blame_lines;
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int num_blame_lines;
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static const char blame_usage[] = "[-c] [-l] [--] file [commit]\n"
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" -c, --compability Use the same output mode as git-annotate (Default: off)\n"
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" -l, --long Show long commit SHA1 (Default: off)\n"
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" -h, --help This message";
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static struct commit **blame_lines;
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static int num_blame_lines;
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static char* blame_contents;
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static int blame_len;
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struct util_info {
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int *line_map;
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@ -390,9 +398,8 @@ static void init_first_commit(struct commit* commit, const char* filename)
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alloc_line_map(commit);
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util = commit->object.util;
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num_blame_lines = util->num_lines;
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for (i = 0; i < num_blame_lines; i++)
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for (i = 0; i < util->num_lines; i++)
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util->line_map[i] = i;
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}
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@ -414,6 +421,9 @@ static void process_commits(struct rev_info *rev, const char *path,
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util = commit->object.util;
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num_blame_lines = util->num_lines;
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blame_lines = xmalloc(sizeof(struct commit *) * num_blame_lines);
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blame_contents = util->buf;
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blame_len = util->size;
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for (i = 0; i < num_blame_lines; i++)
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blame_lines[i] = NULL;
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@ -501,32 +511,128 @@ static void process_commits(struct rev_info *rev, const char *path,
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} while ((commit = get_revision(rev)) != NULL);
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}
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struct commit_info
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{
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char* author;
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char* author_mail;
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unsigned long author_time;
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char* author_tz;
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};
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static void get_commit_info(struct commit* commit, struct commit_info* ret)
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{
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int len;
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char* tmp;
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static char author_buf[1024];
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tmp = strstr(commit->buffer, "\nauthor ") + 8;
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len = index(tmp, '\n') - tmp;
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ret->author = author_buf;
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memcpy(ret->author, tmp, len);
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tmp = ret->author;
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tmp += len;
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*tmp = 0;
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while(*tmp != ' ')
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tmp--;
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ret->author_tz = tmp+1;
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*tmp = 0;
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while(*tmp != ' ')
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tmp--;
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ret->author_time = strtoul(tmp, NULL, 10);
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*tmp = 0;
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while(*tmp != ' ')
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tmp--;
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ret->author_mail = tmp + 1;
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*tmp = 0;
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}
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char* format_time(unsigned long time, const char* tz)
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{
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static char time_buf[128];
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time_t t = time;
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strftime(time_buf, sizeof(time_buf), "%Y-%m-%d %H:%M:%S ", gmtime(&t));
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strcat(time_buf, tz);
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return time_buf;
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}
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int main(int argc, const char **argv)
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{
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int i;
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struct commit *initial = NULL;
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unsigned char sha1[20];
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const char* filename;
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const char *filename = NULL, *commit = NULL;
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char filename_buf[256];
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int sha1_len = 8;
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int compability = 0;
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int options = 1;
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int num_args;
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const char* args[10];
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struct rev_info rev;
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setup_git_directory();
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struct commit_info ci;
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const char *buf;
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int max_digits;
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if (argc != 3)
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die("Usage: blame commit-ish file");
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const char* prefix = setup_git_directory();
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for(i = 1; i < argc; i++) {
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if(options) {
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if(!strcmp(argv[i], "-h") ||
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!strcmp(argv[i], "--help"))
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usage(blame_usage);
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else if(!strcmp(argv[i], "-l") ||
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!strcmp(argv[i], "--long")) {
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sha1_len = 20;
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continue;
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} else if(!strcmp(argv[i], "-c") ||
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!strcmp(argv[i], "--compability")) {
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compability = 1;
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continue;
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} else if(!strcmp(argv[i], "--")) {
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options = 0;
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continue;
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} else if(argv[i][0] == '-')
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usage(blame_usage);
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else
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options = 0;
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}
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filename = argv[2];
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if(!options) {
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if(!filename)
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filename = argv[i];
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else if(!commit)
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commit = argv[i];
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else
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usage(blame_usage);
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}
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}
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if(!filename)
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usage(blame_usage);
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if(!commit)
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commit = "HEAD";
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if(prefix)
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sprintf(filename_buf, "%s%s", prefix, filename);
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else
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strcpy(filename_buf, filename);
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filename = filename_buf;
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{
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struct commit* commit;
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if (get_sha1(argv[1], sha1))
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die("get_sha1 failed");
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commit = lookup_commit_reference(sha1);
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struct commit* c;
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if (get_sha1(commit, sha1))
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die("get_sha1 failed, commit '%s' not found", commit);
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c = lookup_commit_reference(sha1);
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if (fill_util_info(commit, filename)) {
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printf("%s not found in %s\n", filename, argv[1]);
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if (fill_util_info(c, filename)) {
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printf("%s not found in %s\n", filename, commit);
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return 1;
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}
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}
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@ -535,7 +641,7 @@ int main(int argc, const char **argv)
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args[num_args++] = NULL;
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args[num_args++] = "--topo-order";
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args[num_args++] = "--remove-empty";
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args[num_args++] = argv[1];
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args[num_args++] = commit;
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args[num_args++] = "--";
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args[num_args++] = filename;
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args[num_args] = NULL;
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@ -544,13 +650,33 @@ int main(int argc, const char **argv)
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prepare_revision_walk(&rev);
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process_commits(&rev, filename, &initial);
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buf = blame_contents;
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max_digits = 1 + log(num_blame_lines+1)/log(10);
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for (i = 0; i < num_blame_lines; i++) {
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struct commit *c = blame_lines[i];
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if (!c)
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c = initial;
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printf("%d %.8s\n", i, sha1_to_hex(c->object.sha1));
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// printf("%d %s\n", i, find_unique_abbrev(blame_lines[i]->object.sha1, 6));
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get_commit_info(c, &ci);
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fwrite(sha1_to_hex(c->object.sha1), sha1_len, 1, stdout);
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if(compability)
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printf("\t(%10s\t%10s\t%d)", ci.author,
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format_time(ci.author_time, ci.author_tz), i+1);
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else
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printf(" (%-15.15s %10s %*d) ", ci.author,
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format_time(ci.author_time, ci.author_tz),
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max_digits, i+1);
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if(i == num_blame_lines - 1) {
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fwrite(buf, blame_len - (buf - blame_contents),
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1, stdout);
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if(blame_contents[blame_len-1] != '\n')
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putc('\n', stdout);
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} else {
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char* next_buf = index(buf, '\n') + 1;
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fwrite(buf, next_buf - buf, 1, stdout);
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buf = next_buf;
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}
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}
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if (DEBUG) {
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