Andrew's git - gitweb.git/blob

afc945663d03ea30691ccc7967d407b3aa173fae
   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
   9static const char shortlog_usage[] =
  10"git-shortlog [-n] [-s] [<commit-id>... ]\n";
  11
  12static 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
  25static struct path_list mailmap = {NULL, 0, 0, 0};
  26
  27static int read_mailmap(const char *filename)
  28{
  29        char buffer[1024];
  30        FILE *f = fopen(filename, "r");
  31
  32        if (f == NULL)
  33                return 1;
  34        while (fgets(buffer, sizeof(buffer), f) != NULL) {
  35                char *end_of_name, *left_bracket, *right_bracket;
  36                char *name, *email;
  37                if (buffer[0] == '#')
  38                        continue;
  39                if ((left_bracket = strchr(buffer, '<')) == NULL)
  40                        continue;
  41                if ((right_bracket = strchr(left_bracket + 1, '>')) == NULL)
  42                        continue;
  43                if (right_bracket == left_bracket + 1)
  44                        continue;
  45                for (end_of_name = left_bracket; end_of_name != buffer
  46                                && isspace(end_of_name[-1]); end_of_name--)
  47                        /* keep on looking */
  48                if (end_of_name == buffer)
  49                        continue;
  50                name = xmalloc(end_of_name - buffer + 1);
  51                strlcpy(name, buffer, end_of_name - buffer + 1);
  52                email = xmalloc(right_bracket - left_bracket);
  53                strlcpy(email, left_bracket + 1, right_bracket - left_bracket);
  54                path_list_insert(email, &mailmap)->util = name;
  55        }
  56        fclose(f);
  57        return 0;
  58}
  59
  60static int map_email(char *email, char *name, int maxlen)
  61{
  62        char *p;
  63        struct path_list_item *item;
  64
  65        /* autocomplete common developers */
  66        p = strchr(email, '>');
  67        if (!p)
  68                return 0;
  69
  70        *p = '\0';
  71        item = path_list_lookup(email, &mailmap);
  72        if (item != NULL) {
  73                const char *realname = (const char *)item->util;
  74                strncpy(name, realname, maxlen);
  75                return 1;
  76        }
  77        return 0;
  78}
  79
  80static void insert_author_oneline(struct path_list *list,
  81                const char *author, int authorlen,
  82                const char *oneline, int onelinelen)
  83{
  84        const char *dot3 = "/pub/scm/linux/kernel/git/";
  85        char *buffer, *p;
  86        struct path_list_item *item;
  87        struct path_list *onelines;
  88
  89        while (authorlen > 0 && isspace(author[authorlen - 1]))
  90                authorlen--;
  91
  92        buffer = xmalloc(authorlen + 1);
  93        memcpy(buffer, author, authorlen);
  94        buffer[authorlen] = '\0';
  95
  96        item = path_list_insert(buffer, list);
  97        if (item->util == NULL)
  98                item->util = xcalloc(1, sizeof(struct path_list));
  99        else
 100                free(buffer);
 101
 102        if (!strncmp(oneline, "[PATCH", 6)) {
 103                char *eob = strchr(oneline, ']');
 104
 105                if (eob) {
 106                        while (isspace(eob[1]) && eob[1] != '\n')
 107                                eob++;
 108                        if (eob - oneline < onelinelen) {
 109                                onelinelen -= eob - oneline;
 110                                oneline = eob;
 111                        }
 112                }
 113        }
 114
 115        while (onelinelen > 0 && isspace(oneline[0])) {
 116                oneline++;
 117                onelinelen--;
 118        }
 119
 120        while (onelinelen > 0 && isspace(oneline[onelinelen - 1]))
 121                onelinelen--;
 122
 123        buffer = xmalloc(onelinelen + 1);
 124        memcpy(buffer, oneline, onelinelen);
 125        buffer[onelinelen] = '\0';
 126
 127        while ((p = strstr(buffer, dot3)) != NULL) {
 128                memcpy(p, "...", 3);
 129                strcpy(p + 2, p + sizeof(dot3) - 1);
 130        }
 131
 132
 133        onelines = item->util;
 134        if (onelines->nr >= onelines->alloc) {
 135                onelines->alloc = alloc_nr(onelines->nr);
 136                onelines->items = xrealloc(onelines->items,
 137                                onelines->alloc
 138                                * sizeof(struct path_list_item));
 139        }
 140
 141        onelines->items[onelines->nr].util = NULL;
 142        onelines->items[onelines->nr++].path = buffer;
 143}
 144
 145static void read_from_stdin(struct path_list *list)
 146{
 147        char buffer[1024];
 148
 149        while (fgets(buffer, sizeof(buffer), stdin) != NULL) {
 150                char *bob;
 151                if ((buffer[0] == 'A' || buffer[0] == 'a') &&
 152                                !strncmp(buffer + 1, "uthor: ", 7) &&
 153                                (bob = strchr(buffer + 7, '<')) != NULL) {
 154                        char buffer2[1024], offset = 0;
 155
 156                        if (map_email(bob + 1, buffer, sizeof(buffer)))
 157                                bob = buffer + strlen(buffer);
 158                        else {
 159                                offset = 8;
 160                                while (isspace(bob[-1]))
 161                                        bob--;
 162                        }
 163
 164                        while (fgets(buffer2, sizeof(buffer2), stdin) &&
 165                                        buffer2[0] != '\n')
 166                                ; /* chomp input */
 167                        if (fgets(buffer2, sizeof(buffer2), stdin))
 168                                insert_author_oneline(list,
 169                                                buffer + offset,
 170                                                bob - buffer - offset,
 171                                                buffer2, strlen(buffer2));
 172                }
 173        }
 174}
 175
 176static void get_from_rev(struct rev_info *rev, struct path_list *list)
 177{
 178        char scratch[1024];
 179        struct commit *commit;
 180
 181        prepare_revision_walk(rev);
 182        while ((commit = get_revision(rev)) != NULL) {
 183                char *author = NULL, *oneline, *buffer;
 184                int authorlen = authorlen, onelinelen;
 185
 186                /* get author and oneline */
 187                for (buffer = commit->buffer; buffer && *buffer != '\0' &&
 188                                *buffer != '\n'; ) {
 189                        char *eol = strchr(buffer, '\n');
 190
 191                        if (eol == NULL)
 192                                eol = buffer + strlen(buffer);
 193                        else
 194                                eol++;
 195
 196                        if (!strncmp(buffer, "author ", 7)) {
 197                                char *bracket = strchr(buffer, '<');
 198
 199                                if (bracket == NULL || bracket > eol)
 200                                        die("Invalid commit buffer: %s",
 201                                            sha1_to_hex(commit->object.sha1));
 202
 203                                if (map_email(bracket + 1, scratch,
 204                                                        sizeof(scratch))) {
 205                                        author = scratch;
 206                                        authorlen = strlen(scratch);
 207                                } else {
 208                                        while (bracket[-1] == ' ')
 209                                                bracket--;
 210
 211                                        author = buffer + 7;
 212                                        authorlen = bracket - buffer - 7;
 213                                }
 214                        }
 215                        buffer = eol;
 216                }
 217
 218                if (author == NULL)
 219                        die ("Missing author: %s",
 220                                        sha1_to_hex(commit->object.sha1));
 221
 222                if (buffer == NULL || *buffer == '\0') {
 223                        oneline = "<none>";
 224                        onelinelen = sizeof(oneline) + 1;
 225                } else {
 226                        char *eol;
 227
 228                        oneline = buffer + 1;
 229                        eol = strchr(oneline, '\n');
 230                        if (eol == NULL)
 231                                onelinelen = strlen(oneline);
 232                        else
 233                                onelinelen = eol - oneline;
 234                }
 235
 236                insert_author_oneline(list,
 237                                author, authorlen, oneline, onelinelen);
 238        }
 239
 240}
 241
 242int cmd_shortlog(int argc, const char **argv, const char *prefix)
 243{
 244        struct rev_info rev;
 245        struct path_list list = { NULL, 0, 0, 1 };
 246        int i, j, sort_by_number = 0, summary = 0;
 247
 248        init_revisions(&rev, prefix);
 249        argc = setup_revisions(argc, argv, &rev, NULL);
 250        while (argc > 1) {
 251                if (!strcmp(argv[1], "-n") || !strcmp(argv[1], "--numbered"))
 252                        sort_by_number = 1;
 253                else if (!strcmp(argv[1], "-s") ||
 254                                !strcmp(argv[1], "--summary"))
 255                        summary = 1;
 256                else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
 257                        usage(shortlog_usage);
 258                else
 259                        die ("unrecognized argument: %s", argv[1]);
 260                argv++;
 261                argc--;
 262        }
 263
 264        if (!access(".mailmap", R_OK))
 265                read_mailmap(".mailmap");
 266
 267        if (rev.pending.nr == 1)
 268                die ("Need a range!");
 269        else if (rev.pending.nr == 0)
 270                read_from_stdin(&list);
 271        else
 272                get_from_rev(&rev, &list);
 273
 274        if (sort_by_number)
 275                qsort(list.items, sizeof(struct path_list_item), list.nr,
 276                        compare_by_number);
 277
 278        for (i = 0; i < list.nr; i++) {
 279                struct path_list *onelines = list.items[i].util;
 280
 281                printf("%s (%d):\n", list.items[i].path, onelines->nr);
 282                if (!summary) {
 283                        for (j = onelines->nr - 1; j >= 0; j--)
 284                                printf("      %s\n", onelines->items[j].path);
 285                        printf("\n");
 286                }
 287
 288                onelines->strdup_paths = 1;
 289                path_list_clear(onelines, 1);
 290                free(onelines);
 291                list.items[i].util = NULL;
 292        }
 293
 294        list.strdup_paths = 1;
 295        path_list_clear(&list, 1);
 296        mailmap.strdup_paths = 1;
 297        path_list_clear(&mailmap, 1);
 298
 299        return 0;
 300}
 301