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(buffer, ']');
 112
 113                 while (isspace(eob[1]) && eob[1] != '\n')
 114                         eob++;
 115                 if (eob - oneline < onelinelen) {
 116                         onelinelen -= eob - oneline;
 117                         oneline = eob;
 118                 }
 119         }
 120
 121         while (onelinelen > 0 && isspace(oneline[0])) {
 122                 oneline++;
 123                 onelinelen--;
 124         }
 125
 126         while (onelinelen > 0 && isspace(oneline[onelinelen - 1]))
 127                 onelinelen--;
 128
 129         buffer = xmalloc(onelinelen + 1);
 130         memcpy(buffer, oneline, onelinelen);
 131         buffer[onelinelen] = '\0';
 132
 133         while ((p = strstr(buffer, dot3)) != NULL) {
 134                 memcpy(p, "...", 3);
 135                 strcpy(p + 2, p + sizeof(dot3) - 1);
 136         }
 137
 138
 139         onelines = item->util;
 140         if (onelines->nr >= onelines->alloc) {
 141                 onelines->alloc = alloc_nr(onelines->nr);
 142                 onelines->items = xrealloc(onelines->items,
 143                                 onelines->alloc
 144                                 * sizeof(struct path_list_item));
 145         }
 146
 147         onelines->items[onelines->nr].util = NULL;
 148         onelines->items[onelines->nr++].path = buffer;
 149 }
 150
 151 static void read_from_stdin(struct path_list *list)
 152 {
 153         char buffer[1024];
 154
 155         while (fgets(buffer, sizeof(buffer), stdin) != NULL) {
 156                 char *bob;
 157                 if ((buffer[0] == 'A' || buffer[0] == 'a') &&
 158                                 !strncmp(buffer + 1, "uthor: ", 7) &&
 159                                 (bob = strchr(buffer + 7, '<')) != NULL) {
 160                         char buffer2[1024], offset = 0;
 161
 162                         if (map_email(bob + 1, buffer, sizeof(buffer)))
 163                                 bob = buffer + strlen(buffer);
 164                         else {
 165                                 offset = 8;
 166                                 while (isspace(bob[-1]))
 167                                         bob--;
 168                         }
 169
 170                         while (fgets(buffer2, sizeof(buffer2), stdin) &&
 171                                         buffer2[0] != '\n')
 172                                 ; /* chomp input */
 173                         if (fgets(buffer2, sizeof(buffer2), stdin))
 174                                 insert_author_oneline(list,
 175                                                 buffer + offset,
 176                                                 bob - buffer - offset,
 177                                                 buffer2, strlen(buffer2));
 178                 }
 179         }
 180 }
 181
 182 static void get_from_rev(struct rev_info *rev, struct path_list *list)
 183 {
 184         char scratch[1024];
 185         struct commit *commit;
 186
 187         prepare_revision_walk(rev);
 188         while ((commit = get_revision(rev)) != NULL) {
 189                 char *author = NULL, *oneline, *buffer;
 190                 int authorlen = authorlen, onelinelen;
 191
 192                 /* get author and oneline */
 193                 for (buffer = commit->buffer; buffer && *buffer != '\0' &&
 194                                 *buffer != '\n'; ) {
 195                         char *eol = strchr(buffer, '\n');
 196
 197                         if (eol == NULL)
 198                                 eol = buffer + strlen(buffer);
 199                         else
 200                                 eol++;
 201
 202                         if (!strncmp(buffer, "author ", 7)) {
 203                                 char *bracket = strchr(buffer, '<');
 204
 205                                 if (bracket == NULL || bracket > eol)
 206                                         die("Invalid commit buffer: %s",
 207                                             sha1_to_hex(commit->object.sha1));
 208
 209                                 if (map_email(bracket + 1, scratch,
 210                                                         sizeof(scratch))) {
 211                                         author = scratch;
 212                                         authorlen = strlen(scratch);
 213                                 } else {
 214                                         while (bracket[-1] == ' ')
 215                                                 bracket--;
 216
 217                                         author = buffer + 7;
 218                                         authorlen = bracket - buffer - 7;
 219                                 }
 220                         }
 221                         buffer = eol;
 222                 }
 223
 224                 if (author == NULL)
 225                         die ("Missing author: %s",
 226                                         sha1_to_hex(commit->object.sha1));
 227
 228                 if (buffer == NULL || *buffer == '\0') {
 229                         oneline = "<none>";
 230                         onelinelen = sizeof(oneline) + 1;
 231                 } else {
 232                         char *eol;
 233
 234                         oneline = buffer + 1;
 235                         eol = strchr(oneline, '\n');
 236                         if (eol == NULL)
 237                                 onelinelen = strlen(oneline);
 238                         else
 239                                 onelinelen = eol - oneline;
 240                 }
 241
 242                 insert_author_oneline(list,
 243                                 author, authorlen, oneline, onelinelen);
 244         }
 245
 246 }
 247
 248 int cmd_shortlog(int argc, const char **argv, const char *prefix)
 249 {
 250         struct rev_info rev;
 251         struct path_list list = { NULL, 0, 0, 1 };
 252         int i, j, sort_by_number = 0, summary = 0;
 253
 254         init_revisions(&rev, prefix);
 255         argc = setup_revisions(argc, argv, &rev, NULL);
 256         while (argc > 1) {
 257                 if (!strcmp(argv[1], "-n") || !strcmp(argv[1], "--numbered"))
 258                         sort_by_number = 1;
 259                 else if (!strcmp(argv[1], "-s") ||
 260                                 !strcmp(argv[1], "--summary"))
 261                         summary = 1;
 262                 else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
 263                         usage(shortlog_usage);
 264                 else
 265                         die ("unrecognized argument: %s", argv[1]);
 266                 argv++;
 267                 argc--;
 268         }
 269
 270         if (rev.pending.nr == 1)
 271                 die ("Need a range!");
 272         else if (rev.pending.nr == 0)
 273                 read_from_stdin(&list);
 274         else
 275                 get_from_rev(&rev, &list);
 276
 277         if (sort_by_number)
 278                 qsort(list.items, sizeof(struct path_list_item), list.nr,
 279                         compare_by_number);
 280
 281         for (i = 0; i < list.nr; i++) {
 282                 struct path_list *onelines = list.items[i].util;
 283
 284                 printf("%s (%d):\n", list.items[i].path, onelines->nr);
 285                 if (!summary) {
 286                         for (j = onelines->nr - 1; j >= 0; j--)
 287                                 printf("      %s\n", onelines->items[j].path);
 288                         printf("\n");
 289                 }
 290
 291                 onelines->strdup_paths = 1;
 292                 path_list_clear(onelines, 1);
 293                 free(onelines);
 294                 list.items[i].util = NULL;
 295         }
 296
 297         list.strdup_paths = 1;
 298         path_list_clear(&list, 1);
 299
 300         return 0;
 301 }
 302