git.oblomov.eu Git - git/blob - shortlog.c

   1 #include "cache.h"
   2 #include "shortlog.h"
   3 #include "commit.h"
   4 #include "mailmap.h"
   5 #include "utf8.h"
   6
   7 /*
   8  * The util field of our string_list_items will contain one of two things:
   9  *
  10  *   - if --summary is not in use, it will point to a string list of the
  11  *     oneline subjects assigned to this author
  12  *
  13  *   - if --summary is in use, we don't need that list; we only need to know
  14  *     its size. So we abuse the pointer slot to store our integer counter.
  15  *
  16  *  This macro accesses the latter.
  17  */
  18 #define UTIL_TO_INT(x) ((intptr_t)(x)->util)
  19
  20 void shortlog_init(struct shortlog *log)
  21 {
  22         memset(log, 0, sizeof(*log));
  23
  24         read_mailmap(&log->mailmap, &log->common_repo_prefix);
  25
  26         log->list.strdup_strings = 1;
  27         log->wrap = DEFAULT_WRAPLEN;
  28         log->in1 = DEFAULT_INDENT1;
  29         log->in2 = DEFAULT_INDENT2;
  30 }
  31
  32 void shortlog_insert_one_record(struct shortlog *log,
  33                 const char *author,
  34                 const char *oneline)
  35 {
  36         struct string_list_item *item;
  37         const char *mailbuf, *namebuf;
  38         size_t namelen, maillen;
  39         struct strbuf namemailbuf = STRBUF_INIT;
  40         struct ident_split ident;
  41
  42         if (split_ident_line(&ident, author, strlen(author)))
  43                 return;
  44
  45         namebuf = ident.name_begin;
  46         mailbuf = ident.mail_begin;
  47         namelen = ident.name_end - ident.name_begin;
  48         maillen = ident.mail_end - ident.mail_begin;
  49
  50         map_user(&log->mailmap, &mailbuf, &maillen, &namebuf, &namelen);
  51         strbuf_add(&namemailbuf, namebuf, namelen);
  52
  53         if (log->email)
  54                 strbuf_addf(&namemailbuf, " <%.*s>", (int)maillen, mailbuf);
  55
  56         item = string_list_insert(&log->list, namemailbuf.buf);
  57
  58         if (log->summary)
  59                 item->util = (void *)(UTIL_TO_INT(item) + 1);
  60         else {
  61                 const char *dot3 = log->common_repo_prefix;
  62                 char *buffer, *p;
  63                 struct strbuf subject = STRBUF_INIT;
  64                 const char *eol;
  65
  66                 /* Skip any leading whitespace, including any blank lines. */
  67                 while (*oneline && isspace(*oneline))
  68                         oneline++;
  69                 eol = strchr(oneline, '\n');
  70                 if (!eol)
  71                         eol = oneline + strlen(oneline);
  72                 if (starts_with(oneline, "[PATCH")) {
  73                         char *eob = strchr(oneline, ']');
  74                         if (eob && (!eol || eob < eol))
  75                                 oneline = eob + 1;
  76                 }
  77                 while (*oneline && isspace(*oneline) && *oneline != '\n')
  78                         oneline++;
  79                 format_subject(&subject, oneline, " ");
  80                 buffer = strbuf_detach(&subject, NULL);
  81
  82                 if (dot3) {
  83                         int dot3len = strlen(dot3);
  84                         if (dot3len > 5) {
  85                                 while ((p = strstr(buffer, dot3)) != NULL) {
  86                                         int taillen = strlen(p) - dot3len;
  87                                         memcpy(p, "/.../", 5);
  88                                         memmove(p + 5, p + dot3len, taillen + 1);
  89                                 }
  90                         }
  91                 }
  92
  93                 if (item->util == NULL)
  94                         item->util = xcalloc(1, sizeof(struct string_list));
  95                 string_list_append(item->util, buffer);
  96         }
  97 }
  98
  99 void shortlog_add_commit(struct shortlog *log, struct commit *commit)
 100 {
 101         const char *author = NULL, *buffer;
 102         struct strbuf buf = STRBUF_INIT;
 103         struct strbuf ufbuf = STRBUF_INIT;
 104
 105         pp_commit_easy(CMIT_FMT_RAW, commit, &buf);
 106         buffer = buf.buf;
 107         while (*buffer && *buffer != '\n') {
 108                 const char *eol = strchr(buffer, '\n');
 109
 110                 if (eol == NULL)
 111                         eol = buffer + strlen(buffer);
 112                 else
 113                         eol++;
 114
 115                 if (starts_with(buffer, "author "))
 116                         author = buffer + 7;
 117                 buffer = eol;
 118         }
 119         if (!author) {
 120                 warning(_("Missing author: %s"),
 121                     oid_to_hex(&commit->object.oid));
 122                 return;
 123         }
 124         if (log->user_format) {
 125                 struct pretty_print_context ctx = {0};
 126                 ctx.fmt = CMIT_FMT_USERFORMAT;
 127                 ctx.abbrev = log->abbrev;
 128                 ctx.subject = "";
 129                 ctx.after_subject = "";
 130                 ctx.date_mode.type = DATE_NORMAL;
 131                 ctx.output_encoding = get_log_output_encoding();
 132                 pretty_print_commit(&ctx, commit, &ufbuf);
 133                 buffer = ufbuf.buf;
 134         } else if (*buffer) {
 135                 buffer++;
 136         }
 137         shortlog_insert_one_record(log, author, !*buffer ? "<none>" : buffer);
 138         strbuf_release(&ufbuf);
 139         strbuf_release(&buf);
 140 }
 141
 142 static int compare_by_counter(const void *a1, const void *a2)
 143 {
 144         const struct string_list_item *i1 = a1, *i2 = a2;
 145         return UTIL_TO_INT(i2) - UTIL_TO_INT(i1);
 146 }
 147
 148 static int compare_by_list(const void *a1, const void *a2)
 149 {
 150         const struct string_list_item *i1 = a1, *i2 = a2;
 151         const struct string_list *l1 = i1->util, *l2 = i2->util;
 152
 153         if (l1->nr < l2->nr)
 154                 return 1;
 155         else if (l1->nr == l2->nr)
 156                 return 0;
 157         else
 158                 return -1;
 159 }
 160
 161 static void add_wrapped_shortlog_msg(struct strbuf *sb, const char *s,
 162                                      const struct shortlog *log)
 163 {
 164         strbuf_add_wrapped_text(sb, s, log->in1, log->in2, log->wrap);
 165         strbuf_addch(sb, '\n');
 166 }
 167
 168 void shortlog_output(struct shortlog *log)
 169 {
 170         int i, j;
 171         struct strbuf sb = STRBUF_INIT;
 172
 173         if (log->sort_by_number)
 174                 qsort(log->list.items, log->list.nr, sizeof(struct string_list_item),
 175                       log->summary ? compare_by_counter : compare_by_list);
 176         for (i = 0; i < log->list.nr; i++) {
 177                 const struct string_list_item *item = &log->list.items[i];
 178                 if (log->summary) {
 179                         printf("%6d\t%s\n", (int)UTIL_TO_INT(item), item->string);
 180                 } else {
 181                         struct string_list *onelines = item->util;
 182                         printf("%s (%d):\n", item->string, onelines->nr);
 183                         for (j = onelines->nr - 1; j >= 0; j--) {
 184                                 const char *msg = onelines->items[j].string;
 185
 186                                 if (log->wrap_lines) {
 187                                         strbuf_reset(&sb);
 188                                         add_wrapped_shortlog_msg(&sb, msg, log);
 189                                         fwrite(sb.buf, sb.len, 1, stdout);
 190                                 }
 191                                 else
 192                                         printf("      %s\n", msg);
 193                         }
 194                         putchar('\n');
 195                         onelines->strdup_strings = 1;
 196                         string_list_clear(onelines, 0);
 197                         free(onelines);
 198                 }
 199
 200                 log->list.items[i].util = NULL;
 201         }
 202
 203         strbuf_release(&sb);
 204         log->list.strdup_strings = 1;
 205         string_list_clear(&log->list, 1);
 206         clear_mailmap(&log->mailmap);
 207 }