builtin-shortlog.c

   1 #include "builtin.h"
   2 #include "cache.h"
   3 #include "commit.h"
   4 #include "diff.h"
   5 #include "path-list.h"
   6 #include "revision.h"
   7 #include <string.h>
   8
   9 static const char shortlog_usage[] =
  10 "git-shortlog [-n] [-s] [<commit-id>... ]\n";
  11
  12 static int compare_by_number(const void *a1, const void *a2)
  13 {
  14         const struct path_list_item *i1 = a1, *i2 = a2;
  15         const struct path_list *l1 = i1->util, *l2 = i2->util;
  16
  17         if (l1->nr < l2->nr)
  18                 return -1;
  19         else if (l1->nr == l2->nr)
  20                 return 0;
  21         else
  22                 return +1;
  23 }
  24
  25 static struct path_list_item mailmap_list[] = {
  26         { "R.Marek@sh.cvut.cz", (void*)"Rudolf Marek" },
  27         { "Ralf.Wildenhues@gmx.de", (void*)"Ralf Wildenhues" },
  28         { "aherrman@de.ibm.com", (void*)"Andreas Herrmann" },
  29         { "akpm@osdl.org", (void*)"Andrew Morton" },
  30         { "andrew.vasquez@qlogic.com", (void*)"Andrew Vasquez" },
  31         { "aquynh@gmail.com", (void*)"Nguyen Anh Quynh" },
  32         { "axboe@suse.de", (void*)"Jens Axboe" },
  33         { "blaisorblade@yahoo.it", (void*)"Paolo 'Blaisorblade' Giarrusso" },
  34         { "bunk@stusta.de", (void*)"Adrian Bunk" },
  35         { "domen@coderock.org", (void*)"Domen Puncer" },
  36         { "dougg@torque.net", (void*)"Douglas Gilbert" },
  37         { "dwmw2@shinybook.infradead.org", (void*)"David Woodhouse" },
  38         { "ecashin@coraid.com", (void*)"Ed L Cashin" },
  39         { "felix@derklecks.de", (void*)"Felix Moeller" },
  40         { "fzago@systemfabricworks.com", (void*)"Frank Zago" },
  41         { "gregkh@suse.de", (void*)"Greg Kroah-Hartman" },
  42         { "hch@lst.de", (void*)"Christoph Hellwig" },
  43         { "htejun@gmail.com", (void*)"Tejun Heo" },
  44         { "jejb@mulgrave.(none)", (void*)"James Bottomley" },
  45         { "jejb@titanic.il.steeleye.com", (void*)"James Bottomley" },
  46         { "jgarzik@pretzel.yyz.us", (void*)"Jeff Garzik" },
  47         { "johnpol@2ka.mipt.ru", (void*)"Evgeniy Polyakov" },
  48         { "kay.sievers@vrfy.org", (void*)"Kay Sievers" },
  49         { "minyard@acm.org", (void*)"Corey Minyard" },
  50         { "mshah@teja.com", (void*)"Mitesh shah" },
  51         { "pj@ludd.ltu.se", (void*)"Peter A Jonsson" },
  52         { "rmps@joel.ist.utl.pt", (void*)"Rui Saraiva" },
  53         { "santtu.hyrkko@gmail.com", (void*)"Santtu Hyrkk\e,Av\e(B" },
  54         { "simon@thekelleys.org.uk", (void*)"Simon Kelley" },
  55         { "ssant@in.ibm.com", (void*)"Sachin P Sant" },
  56         { "terra@gnome.org", (void*)"Morten Welinder" },
  57         { "tony.luck@intel.com", (void*)"Tony Luck" },
  58         { "welinder@anemone.rentec.com", (void*)"Morten Welinder" },
  59         { "welinder@darter.rentec.com", (void*)"Morten Welinder" },
  60         { "welinder@troll.com", (void*)"Morten Welinder" }
  61 };
  62
  63 static struct path_list mailmap = {
  64         mailmap_list,
  65         sizeof(mailmap_list) / sizeof(struct path_list_item), 0, 0
  66 };
  67
  68 static int map_email(char *email, char *name, int maxlen)
  69 {
  70         char *p;
  71         struct path_list_item *item;
  72
  73         /* autocomplete common developers */
  74         p = strchr(email, '>');
  75         if (!p)
  76                 return 0;
  77
  78         *p = '\0';
  79         item = path_list_lookup(email, &mailmap);
  80         if (item != NULL) {
  81                 const char *realname = (const char *)item->util;
  82                 strncpy(name, realname, maxlen);
  83                 return 1;
  84         }
  85         return 0;
  86 }
  87
  88 static void insert_author_oneline(struct path_list *list,
  89                 const char *author, int authorlen,
  90                 const char *oneline, int onelinelen)
  91 {
  92         const char *dot3 = "/pub/scm/linux/kernel/git/";
  93         char *buffer, *p;
  94         struct path_list_item *item;
  95         struct path_list *onelines;
  96
  97         while (authorlen > 0 && isspace(author[authorlen - 1]))
  98                 authorlen--;
  99
 100         buffer = xmalloc(authorlen + 1);
 101         memcpy(buffer, author, authorlen);
 102         buffer[authorlen] = '\0';
 103
 104         item = path_list_insert(buffer, list);
 105         if (item->util == NULL)
 106                 item->util = xcalloc(1, sizeof(struct path_list));
 107         else
 108                 free(buffer);
 109
 110         if (!strncmp(oneline, "[PATCH", 6)) {
 111                 char *eob = strchr(oneline, ']');
 112
 113                 if (eob) {
 114                         while (isspace(eob[1]) && eob[1] != '\n')
 115                                 eob++;
 116                         if (eob - oneline < onelinelen) {
 117                                 onelinelen -= eob - oneline;
 118                                 oneline = eob;
 119                         }
 120                 }
 121         }
 122
 123         while (onelinelen > 0 && isspace(oneline[0])) {
 124                 oneline++;
 125                 onelinelen--;
 126         }
 127
 128         while (onelinelen > 0 && isspace(oneline[onelinelen - 1]))
 129                 onelinelen--;
 130
 131         buffer = xmalloc(onelinelen + 1);
 132         memcpy(buffer, oneline, onelinelen);
 133         buffer[onelinelen] = '\0';
 134
 135         while ((p = strstr(buffer, dot3)) != NULL) {
 136                 memcpy(p, "...", 3);
 137                 strcpy(p + 2, p + sizeof(dot3) - 1);
 138         }
 139
 140
 141         onelines = item->util;
 142         if (onelines->nr >= onelines->alloc) {
 143                 onelines->alloc = alloc_nr(onelines->nr);
 144                 onelines->items = xrealloc(onelines->items,
 145                                 onelines->alloc
 146                                 * sizeof(struct path_list_item));
 147         }
 148
 149         onelines->items[onelines->nr].util = NULL;
 150         onelines->items[onelines->nr++].path = buffer;
 151 }
 152
 153 static void read_from_stdin(struct path_list *list)
 154 {
 155         char buffer[1024];
 156
 157         while (fgets(buffer, sizeof(buffer), stdin) != NULL) {
 158                 char *bob;
 159                 if ((buffer[0] == 'A' || buffer[0] == 'a') &&
 160                                 !strncmp(buffer + 1, "uthor: ", 7) &&
 161                                 (bob = strchr(buffer + 7, '<')) != NULL) {
 162                         char buffer2[1024], offset = 0;
 163
 164                         if (map_email(bob + 1, buffer, sizeof(buffer)))
 165                                 bob = buffer + strlen(buffer);
 166                         else {
 167                                 offset = 8;
 168                                 while (isspace(bob[-1]))
 169                                         bob--;
 170                         }
 171
 172                         while (fgets(buffer2, sizeof(buffer2), stdin) &&
 173                                         buffer2[0] != '\n')
 174                                 ; /* chomp input */
 175                         if (fgets(buffer2, sizeof(buffer2), stdin))
 176                                 insert_author_oneline(list,
 177                                                 buffer + offset,
 178                                                 bob - buffer - offset,
 179                                                 buffer2, strlen(buffer2));
 180                 }
 181         }
 182 }
 183
 184 static void get_from_rev(struct rev_info *rev, struct path_list *list)
 185 {
 186         char scratch[1024];
 187         struct commit *commit;
 188
 189         prepare_revision_walk(rev);
 190         while ((commit = get_revision(rev)) != NULL) {
 191                 char *author = NULL, *oneline, *buffer;
 192                 int authorlen = authorlen, onelinelen;
 193
 194                 /* get author and oneline */
 195                 for (buffer = commit->buffer; buffer && *buffer != '\0' &&
 196                                 *buffer != '\n'; ) {
 197                         char *eol = strchr(buffer, '\n');
 198
 199                         if (eol == NULL)
 200                                 eol = buffer + strlen(buffer);
 201                         else
 202                                 eol++;
 203
 204                         if (!strncmp(buffer, "author ", 7)) {
 205                                 char *bracket = strchr(buffer, '<');
 206
 207                                 if (bracket == NULL || bracket > eol)
 208                                         die("Invalid commit buffer: %s",
 209                                             sha1_to_hex(commit->object.sha1));
 210
 211                                 if (map_email(bracket + 1, scratch,
 212                                                         sizeof(scratch))) {
 213                                         author = scratch;
 214                                         authorlen = strlen(scratch);
 215                                 } else {
 216                                         while (bracket[-1] == ' ')
 217                                                 bracket--;
 218
 219                                         author = buffer + 7;
 220                                         authorlen = bracket - buffer - 7;
 221                                 }
 222                         }
 223                         buffer = eol;
 224                 }
 225
 226                 if (author == NULL)
 227                         die ("Missing author: %s",
 228                                         sha1_to_hex(commit->object.sha1));
 229
 230                 if (buffer == NULL || *buffer == '\0') {
 231                         oneline = "<none>";
 232                         onelinelen = sizeof(oneline) + 1;
 233                 } else {
 234                         char *eol;
 235
 236                         oneline = buffer + 1;
 237                         eol = strchr(oneline, '\n');
 238                         if (eol == NULL)
 239                                 onelinelen = strlen(oneline);
 240                         else
 241                                 onelinelen = eol - oneline;
 242                 }
 243
 244                 insert_author_oneline(list,
 245                                 author, authorlen, oneline, onelinelen);
 246         }
 247
 248 }
 249
 250 int cmd_shortlog(int argc, const char **argv, const char *prefix)
 251 {
 252         struct rev_info rev;
 253         struct path_list list = { NULL, 0, 0, 1 };
 254         int i, j, sort_by_number = 0, summary = 0;
 255
 256         init_revisions(&rev, prefix);
 257         argc = setup_revisions(argc, argv, &rev, NULL);
 258         while (argc > 1) {
 259                 if (!strcmp(argv[1], "-n") || !strcmp(argv[1], "--numbered"))
 260                         sort_by_number = 1;
 261                 else if (!strcmp(argv[1], "-s") ||
 262                                 !strcmp(argv[1], "--summary"))
 263                         summary = 1;
 264                 else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
 265                         usage(shortlog_usage);
 266                 else
 267                         die ("unrecognized argument: %s", argv[1]);
 268                 argv++;
 269                 argc--;
 270         }
 271
 272         if (rev.pending.nr == 1)
 273                 die ("Need a range!");
 274         else if (rev.pending.nr == 0)
 275                 read_from_stdin(&list);
 276         else
 277                 get_from_rev(&rev, &list);
 278
 279         if (sort_by_number)
 280                 qsort(list.items, sizeof(struct path_list_item), list.nr,
 281                         compare_by_number);
 282
 283         for (i = 0; i < list.nr; i++) {
 284                 struct path_list *onelines = list.items[i].util;
 285
 286                 printf("%s (%d):\n", list.items[i].path, onelines->nr);
 287                 if (!summary) {
 288                         for (j = onelines->nr - 1; j >= 0; j--)
 289                                 printf("      %s\n", onelines->items[j].path);
 290                         printf("\n");
 291                 }
 292
 293                 onelines->strdup_paths = 1;
 294                 path_list_clear(onelines, 1);
 295                 free(onelines);
 296                 list.items[i].util = NULL;
 297         }
 298
 299         list.strdup_paths = 1;
 300         path_list_clear(&list, 1);
 301
 302         return 0;
 303 }
 304