builtin-shortlog.con commit Merge branch 'ew/svn-rev-db' (3e5f260)
   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 "utf8.h"
   8#include "mailmap.h"
   9
  10static const char shortlog_usage[] =
  11"git-shortlog [-n] [-s] [<commit-id>... ]";
  12
  13static char *common_repo_prefix;
  14
  15static int compare_by_number(const void *a1, const void *a2)
  16{
  17        const struct path_list_item *i1 = a1, *i2 = a2;
  18        const struct path_list *l1 = i1->util, *l2 = i2->util;
  19
  20        if (l1->nr < l2->nr)
  21                return 1;
  22        else if (l1->nr == l2->nr)
  23                return 0;
  24        else
  25                return -1;
  26}
  27
  28static struct path_list mailmap = {NULL, 0, 0, 0};
  29
  30static void insert_one_record(struct path_list *list,
  31                              const char *author,
  32                              const char *oneline)
  33{
  34        const char *dot3 = common_repo_prefix;
  35        char *buffer, *p;
  36        struct path_list_item *item;
  37        struct path_list *onelines;
  38        char namebuf[1024];
  39        size_t len;
  40        const char *eol;
  41        const char *boemail, *eoemail;
  42
  43        boemail = strchr(author, '<');
  44        if (!boemail)
  45                return;
  46        eoemail = strchr(boemail, '>');
  47        if (!eoemail)
  48                return;
  49        if (!map_email(&mailmap, boemail+1, namebuf, sizeof(namebuf))) {
  50                while (author < boemail && isspace(*author))
  51                        author++;
  52                for (len = 0;
  53                     len < sizeof(namebuf) - 1 && author + len < boemail;
  54                     len++)
  55                        namebuf[len] = author[len];
  56                while (0 < len && isspace(namebuf[len-1]))
  57                        len--;
  58                namebuf[len] = '\0';
  59        }
  60
  61        buffer = xstrdup(namebuf);
  62        item = path_list_insert(buffer, list);
  63        if (item->util == NULL)
  64                item->util = xcalloc(1, sizeof(struct path_list));
  65        else
  66                free(buffer);
  67
  68        eol = strchr(oneline, '\n');
  69        if (!eol)
  70                eol = oneline + strlen(oneline);
  71        while (*oneline && isspace(*oneline) && *oneline != '\n')
  72                oneline++;
  73        if (!prefixcmp(oneline, "[PATCH")) {
  74                char *eob = strchr(oneline, ']');
  75                if (eob && (!eol || eob < eol))
  76                        oneline = eob + 1;
  77        }
  78        while (*oneline && isspace(*oneline) && *oneline != '\n')
  79                oneline++;
  80        len = eol - oneline;
  81        while (len && isspace(oneline[len-1]))
  82                len--;
  83        buffer = xmemdupz(oneline, len);
  84
  85        if (dot3) {
  86                int dot3len = strlen(dot3);
  87                if (dot3len > 5) {
  88                        while ((p = strstr(buffer, dot3)) != NULL) {
  89                                int taillen = strlen(p) - dot3len;
  90                                memcpy(p, "/.../", 5);
  91                                memmove(p + 5, p + dot3len, taillen + 1);
  92                        }
  93                }
  94        }
  95
  96        onelines = item->util;
  97        if (onelines->nr >= onelines->alloc) {
  98                onelines->alloc = alloc_nr(onelines->nr);
  99                onelines->items = xrealloc(onelines->items,
 100                                onelines->alloc
 101                                * sizeof(struct path_list_item));
 102        }
 103
 104        onelines->items[onelines->nr].util = NULL;
 105        onelines->items[onelines->nr++].path = buffer;
 106}
 107
 108static void read_from_stdin(struct path_list *list)
 109{
 110        char author[1024], oneline[1024];
 111
 112        while (fgets(author, sizeof(author), stdin) != NULL) {
 113                if (!(author[0] == 'A' || author[0] == 'a') ||
 114                    prefixcmp(author + 1, "uthor: "))
 115                        continue;
 116                while (fgets(oneline, sizeof(oneline), stdin) &&
 117                       oneline[0] != '\n')
 118                        ; /* discard headers */
 119                while (fgets(oneline, sizeof(oneline), stdin) &&
 120                       oneline[0] == '\n')
 121                        ; /* discard blanks */
 122                insert_one_record(list, author + 8, oneline);
 123        }
 124}
 125
 126static void get_from_rev(struct rev_info *rev, struct path_list *list)
 127{
 128        struct commit *commit;
 129
 130        prepare_revision_walk(rev);
 131        while ((commit = get_revision(rev)) != NULL) {
 132                const char *author = NULL, *buffer;
 133
 134                buffer = commit->buffer;
 135                while (*buffer && *buffer != '\n') {
 136                        const char *eol = strchr(buffer, '\n');
 137
 138                        if (eol == NULL)
 139                                eol = buffer + strlen(buffer);
 140                        else
 141                                eol++;
 142
 143                        if (!prefixcmp(buffer, "author "))
 144                                author = buffer + 7;
 145                        buffer = eol;
 146                }
 147                if (!author)
 148                        die("Missing author: %s",
 149                            sha1_to_hex(commit->object.sha1));
 150                if (*buffer)
 151                        buffer++;
 152                insert_one_record(list, author, !*buffer ? "<none>" : buffer);
 153        }
 154}
 155
 156static int parse_uint(char const **arg, int comma)
 157{
 158        unsigned long ul;
 159        int ret;
 160        char *endp;
 161
 162        ul = strtoul(*arg, &endp, 10);
 163        if (endp != *arg && *endp && *endp != comma)
 164                return -1;
 165        ret = (int) ul;
 166        if (ret != ul)
 167                return -1;
 168        *arg = endp;
 169        if (**arg)
 170                (*arg)++;
 171        return ret;
 172}
 173
 174static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
 175#define DEFAULT_WRAPLEN 76
 176#define DEFAULT_INDENT1 6
 177#define DEFAULT_INDENT2 9
 178
 179static void parse_wrap_args(const char *arg, int *in1, int *in2, int *wrap)
 180{
 181        arg += 2; /* skip -w */
 182
 183        *wrap = parse_uint(&arg, ',');
 184        if (*wrap < 0)
 185                die(wrap_arg_usage);
 186        *in1 = parse_uint(&arg, ',');
 187        if (*in1 < 0)
 188                die(wrap_arg_usage);
 189        *in2 = parse_uint(&arg, '\0');
 190        if (*in2 < 0)
 191                die(wrap_arg_usage);
 192
 193        if (!*wrap)
 194                *wrap = DEFAULT_WRAPLEN;
 195        if (!*in1)
 196                *in1 = DEFAULT_INDENT1;
 197        if (!*in2)
 198                *in2 = DEFAULT_INDENT2;
 199        if (*wrap &&
 200            ((*in1 && *wrap <= *in1) ||
 201             (*in2 && *wrap <= *in2)))
 202                die(wrap_arg_usage);
 203}
 204
 205int cmd_shortlog(int argc, const char **argv, const char *prefix)
 206{
 207        struct rev_info rev;
 208        struct path_list list = { NULL, 0, 0, 1 };
 209        int i, j, sort_by_number = 0, summary = 0;
 210        int wrap_lines = 0;
 211        int wrap = DEFAULT_WRAPLEN;
 212        int in1 = DEFAULT_INDENT1;
 213        int in2 = DEFAULT_INDENT2;
 214
 215        /* since -n is a shadowed rev argument, parse our args first */
 216        while (argc > 1) {
 217                if (!strcmp(argv[1], "-n") || !strcmp(argv[1], "--numbered"))
 218                        sort_by_number = 1;
 219                else if (!strcmp(argv[1], "-s") ||
 220                                !strcmp(argv[1], "--summary"))
 221                        summary = 1;
 222                else if (!prefixcmp(argv[1], "-w")) {
 223                        wrap_lines = 1;
 224                        parse_wrap_args(argv[1], &in1, &in2, &wrap);
 225                }
 226                else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
 227                        usage(shortlog_usage);
 228                else
 229                        break;
 230                argv++;
 231                argc--;
 232        }
 233        init_revisions(&rev, prefix);
 234        argc = setup_revisions(argc, argv, &rev, NULL);
 235        if (argc > 1)
 236                die ("unrecognized argument: %s", argv[1]);
 237
 238        read_mailmap(&mailmap, ".mailmap", &common_repo_prefix);
 239
 240        if (rev.pending.nr == 0) {
 241                if (isatty(0))
 242                        fprintf(stderr, "(reading log to summarize from standard input)\n");
 243                read_from_stdin(&list);
 244        }
 245        else
 246                get_from_rev(&rev, &list);
 247
 248        if (sort_by_number)
 249                qsort(list.items, list.nr, sizeof(struct path_list_item),
 250                        compare_by_number);
 251
 252        for (i = 0; i < list.nr; i++) {
 253                struct path_list *onelines = list.items[i].util;
 254
 255                if (summary) {
 256                        printf("%s: %d\n", list.items[i].path, onelines->nr);
 257                } else {
 258                        printf("%s (%d):\n", list.items[i].path, onelines->nr);
 259                        for (j = onelines->nr - 1; j >= 0; j--) {
 260                                const char *msg = onelines->items[j].path;
 261
 262                                if (wrap_lines) {
 263                                        int col = print_wrapped_text(msg, in1, in2, wrap);
 264                                        if (col != wrap)
 265                                                putchar('\n');
 266                                }
 267                                else
 268                                        printf("      %s\n", msg);
 269                        }
 270                        putchar('\n');
 271                }
 272
 273                onelines->strdup_paths = 1;
 274                path_list_clear(onelines, 1);
 275                free(onelines);
 276                list.items[i].util = NULL;
 277        }
 278
 279        list.strdup_paths = 1;
 280        path_list_clear(&list, 1);
 281        mailmap.strdup_paths = 1;
 282        path_list_clear(&mailmap, 1);
 283
 284        return 0;
 285}