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-rw-r--r--builtin-shortlog.c341
1 files changed, 341 insertions, 0 deletions
diff --git a/builtin-shortlog.c b/builtin-shortlog.c
new file mode 100644
index 0000000000..edb40429ec
--- /dev/null
+++ b/builtin-shortlog.c
@@ -0,0 +1,341 @@
+#include "builtin.h"
+#include "cache.h"
+#include "commit.h"
+#include "diff.h"
+#include "path-list.h"
+#include "revision.h"
+
+static const char shortlog_usage[] =
+"git-shortlog [-n] [-s] [<commit-id>... ]";
+
+static char *common_repo_prefix;
+
+static int compare_by_number(const void *a1, const void *a2)
+{
+ const struct path_list_item *i1 = a1, *i2 = a2;
+ const struct path_list *l1 = i1->util, *l2 = i2->util;
+
+ if (l1->nr < l2->nr)
+ return 1;
+ else if (l1->nr == l2->nr)
+ return 0;
+ else
+ return -1;
+}
+
+static struct path_list mailmap = {NULL, 0, 0, 0};
+
+static int read_mailmap(const char *filename)
+{
+ char buffer[1024];
+ FILE *f = fopen(filename, "r");
+
+ if (f == NULL)
+ return 1;
+ while (fgets(buffer, sizeof(buffer), f) != NULL) {
+ char *end_of_name, *left_bracket, *right_bracket;
+ char *name, *email;
+ int i;
+ if (buffer[0] == '#') {
+ static const char abbrev[] = "# repo-abbrev:";
+ int abblen = sizeof(abbrev) - 1;
+ int len = strlen(buffer);
+
+ if (len && buffer[len - 1] == '\n')
+ buffer[--len] = 0;
+ if (!strncmp(buffer, abbrev, abblen)) {
+ char *cp;
+
+ if (common_repo_prefix)
+ free(common_repo_prefix);
+ common_repo_prefix = xmalloc(len);
+
+ for (cp = buffer + abblen; isspace(*cp); cp++)
+ ; /* nothing */
+ strcpy(common_repo_prefix, cp);
+ }
+ continue;
+ }
+ if ((left_bracket = strchr(buffer, '<')) == NULL)
+ continue;
+ if ((right_bracket = strchr(left_bracket + 1, '>')) == NULL)
+ continue;
+ if (right_bracket == left_bracket + 1)
+ continue;
+ for (end_of_name = left_bracket; end_of_name != buffer
+ && isspace(end_of_name[-1]); end_of_name--)
+ /* keep on looking */
+ if (end_of_name == buffer)
+ continue;
+ name = xmalloc(end_of_name - buffer + 1);
+ strlcpy(name, buffer, end_of_name - buffer + 1);
+ email = xmalloc(right_bracket - left_bracket);
+ for (i = 0; i < right_bracket - left_bracket - 1; i++)
+ email[i] = tolower(left_bracket[i + 1]);
+ email[right_bracket - left_bracket - 1] = '\0';
+ path_list_insert(email, &mailmap)->util = name;
+ }
+ fclose(f);
+ return 0;
+}
+
+static int map_email(char *email, char *name, int maxlen)
+{
+ char *p;
+ struct path_list_item *item;
+
+ /* autocomplete common developers */
+ p = strchr(email, '>');
+ if (!p)
+ return 0;
+
+ *p = '\0';
+ /* downcase the email address */
+ for (p = email; *p; p++)
+ *p = tolower(*p);
+ item = path_list_lookup(email, &mailmap);
+ if (item != NULL) {
+ const char *realname = (const char *)item->util;
+ strncpy(name, realname, maxlen);
+ return 1;
+ }
+ return 0;
+}
+
+static void insert_author_oneline(struct path_list *list,
+ const char *author, int authorlen,
+ const char *oneline, int onelinelen)
+{
+ const char *dot3 = common_repo_prefix;
+ char *buffer, *p;
+ struct path_list_item *item;
+ struct path_list *onelines;
+
+ while (authorlen > 0 && isspace(author[authorlen - 1]))
+ authorlen--;
+
+ buffer = xmalloc(authorlen + 1);
+ memcpy(buffer, author, authorlen);
+ buffer[authorlen] = '\0';
+
+ item = path_list_insert(buffer, list);
+ if (item->util == NULL)
+ item->util = xcalloc(1, sizeof(struct path_list));
+ else
+ free(buffer);
+
+ if (!strncmp(oneline, "[PATCH", 6)) {
+ char *eob = strchr(oneline, ']');
+
+ if (eob) {
+ while (isspace(eob[1]) && eob[1] != '\n')
+ eob++;
+ if (eob - oneline < onelinelen) {
+ onelinelen -= eob - oneline;
+ oneline = eob;
+ }
+ }
+ }
+
+ while (onelinelen > 0 && isspace(oneline[0])) {
+ oneline++;
+ onelinelen--;
+ }
+
+ while (onelinelen > 0 && isspace(oneline[onelinelen - 1]))
+ onelinelen--;
+
+ buffer = xmalloc(onelinelen + 1);
+ memcpy(buffer, oneline, onelinelen);
+ buffer[onelinelen] = '\0';
+
+ if (dot3) {
+ int dot3len = strlen(dot3);
+ if (dot3len > 5) {
+ while ((p = strstr(buffer, dot3)) != NULL) {
+ int taillen = strlen(p) - dot3len;
+ memcpy(p, "/.../", 5);
+ memmove(p + 5, p + dot3len, taillen + 1);
+ }
+ }
+ }
+
+ onelines = item->util;
+ if (onelines->nr >= onelines->alloc) {
+ onelines->alloc = alloc_nr(onelines->nr);
+ onelines->items = xrealloc(onelines->items,
+ onelines->alloc
+ * sizeof(struct path_list_item));
+ }
+
+ onelines->items[onelines->nr].util = NULL;
+ onelines->items[onelines->nr++].path = buffer;
+}
+
+static void read_from_stdin(struct path_list *list)
+{
+ char buffer[1024];
+
+ while (fgets(buffer, sizeof(buffer), stdin) != NULL) {
+ char *bob;
+ if ((buffer[0] == 'A' || buffer[0] == 'a') &&
+ !strncmp(buffer + 1, "uthor: ", 7) &&
+ (bob = strchr(buffer + 7, '<')) != NULL) {
+ char buffer2[1024], offset = 0;
+
+ if (map_email(bob + 1, buffer, sizeof(buffer)))
+ bob = buffer + strlen(buffer);
+ else {
+ offset = 8;
+ while (buffer + offset < bob &&
+ isspace(bob[-1]))
+ bob--;
+ }
+
+ while (fgets(buffer2, sizeof(buffer2), stdin) &&
+ buffer2[0] != '\n')
+ ; /* chomp input */
+ if (fgets(buffer2, sizeof(buffer2), stdin)) {
+ int l2 = strlen(buffer2);
+ int i;
+ for (i = 0; i < l2; i++)
+ if (!isspace(buffer2[i]))
+ break;
+ insert_author_oneline(list,
+ buffer + offset,
+ bob - buffer - offset,
+ buffer2 + i, l2 - i);
+ }
+ }
+ }
+}
+
+static void get_from_rev(struct rev_info *rev, struct path_list *list)
+{
+ char scratch[1024];
+ struct commit *commit;
+
+ prepare_revision_walk(rev);
+ while ((commit = get_revision(rev)) != NULL) {
+ char *author = NULL, *oneline, *buffer;
+ int authorlen = authorlen, onelinelen;
+
+ /* get author and oneline */
+ for (buffer = commit->buffer; buffer && *buffer != '\0' &&
+ *buffer != '\n'; ) {
+ char *eol = strchr(buffer, '\n');
+
+ if (eol == NULL)
+ eol = buffer + strlen(buffer);
+ else
+ eol++;
+
+ if (!strncmp(buffer, "author ", 7)) {
+ char *bracket = strchr(buffer, '<');
+
+ if (bracket == NULL || bracket > eol)
+ die("Invalid commit buffer: %s",
+ sha1_to_hex(commit->object.sha1));
+
+ if (map_email(bracket + 1, scratch,
+ sizeof(scratch))) {
+ author = scratch;
+ authorlen = strlen(scratch);
+ } else {
+ if (bracket[-1] == ' ')
+ bracket--;
+
+ author = buffer + 7;
+ authorlen = bracket - buffer - 7;
+ }
+ }
+ buffer = eol;
+ }
+
+ if (author == NULL)
+ die ("Missing author: %s",
+ sha1_to_hex(commit->object.sha1));
+
+ if (buffer == NULL || *buffer == '\0') {
+ oneline = "<none>";
+ onelinelen = sizeof(oneline) + 1;
+ } else {
+ char *eol;
+
+ oneline = buffer + 1;
+ eol = strchr(oneline, '\n');
+ if (eol == NULL)
+ onelinelen = strlen(oneline);
+ else
+ onelinelen = eol - oneline;
+ }
+
+ insert_author_oneline(list,
+ author, authorlen, oneline, onelinelen);
+ }
+
+}
+
+int cmd_shortlog(int argc, const char **argv, const char *prefix)
+{
+ struct rev_info rev;
+ struct path_list list = { NULL, 0, 0, 1 };
+ int i, j, sort_by_number = 0, summary = 0;
+
+ /* since -n is a shadowed rev argument, parse our args first */
+ while (argc > 1) {
+ if (!strcmp(argv[1], "-n") || !strcmp(argv[1], "--numbered"))
+ sort_by_number = 1;
+ else if (!strcmp(argv[1], "-s") ||
+ !strcmp(argv[1], "--summary"))
+ summary = 1;
+ else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
+ usage(shortlog_usage);
+ else
+ break;
+ argv++;
+ argc--;
+ }
+ init_revisions(&rev, prefix);
+ argc = setup_revisions(argc, argv, &rev, NULL);
+ if (argc > 1)
+ die ("unrecognized argument: %s", argv[1]);
+
+ if (!access(".mailmap", R_OK))
+ read_mailmap(".mailmap");
+
+ if (rev.pending.nr == 0)
+ read_from_stdin(&list);
+ else
+ get_from_rev(&rev, &list);
+
+ if (sort_by_number)
+ qsort(list.items, list.nr, sizeof(struct path_list_item),
+ compare_by_number);
+
+ for (i = 0; i < list.nr; i++) {
+ struct path_list *onelines = list.items[i].util;
+
+ if (summary) {
+ printf("%s: %d\n", list.items[i].path, onelines->nr);
+ } else {
+ printf("%s (%d):\n", list.items[i].path, onelines->nr);
+ for (j = onelines->nr - 1; j >= 0; j--)
+ printf(" %s\n", onelines->items[j].path);
+ printf("\n");
+ }
+
+ onelines->strdup_paths = 1;
+ path_list_clear(onelines, 1);
+ free(onelines);
+ list.items[i].util = NULL;
+ }
+
+ list.strdup_paths = 1;
+ path_list_clear(&list, 1);
+ mailmap.strdup_paths = 1;
+ path_list_clear(&mailmap, 1);
+
+ return 0;
+}
+