builtin-log.c

   1 /*
   2  * Builtin "git log" and related commands (show, whatchanged)
   3  *
   4  * (C) Copyright 2006 Linus Torvalds
   5  *               2006 Junio Hamano
   6  */
   7 #include "cache.h"
   8 #include "commit.h"
   9 #include "diff.h"
  10 #include "revision.h"
  11 #include "log-tree.h"
  12 #include "builtin.h"
  13
  14 static int cmd_log_wc(int argc, const char **argv, char **envp,
  15                       struct rev_info *rev)
  16 {
  17         struct commit *commit;
  18
  19         rev->abbrev = DEFAULT_ABBREV;
  20         rev->commit_format = CMIT_FMT_DEFAULT;
  21         rev->verbose_header = 1;
  22         argc = setup_revisions(argc, argv, rev, "HEAD");
  23
  24         if (argc > 1)
  25                 die("unrecognized argument: %s", argv[1]);
  26
  27         prepare_revision_walk(rev);
  28         setup_pager();
  29         while ((commit = get_revision(rev)) != NULL) {
  30                 log_tree_commit(rev, commit);
  31                 free(commit->buffer);
  32                 commit->buffer = NULL;
  33         }
  34         return 0;
  35 }
  36
  37 int cmd_whatchanged(int argc, const char **argv, char **envp)
  38 {
  39         struct rev_info rev;
  40
  41         init_revisions(&rev);
  42         rev.diff = 1;
  43         rev.diffopt.recursive = 1;
  44         return cmd_log_wc(argc, argv, envp, &rev);
  45 }
  46
  47 int cmd_show(int argc, const char **argv, char **envp)
  48 {
  49         struct rev_info rev;
  50
  51         init_revisions(&rev);
  52         rev.diff = 1;
  53         rev.diffopt.recursive = 1;
  54         rev.combine_merges = 1;
  55         rev.dense_combined_merges = 1;
  56         rev.always_show_header = 1;
  57         rev.ignore_merges = 0;
  58         rev.no_walk = 1;
  59         return cmd_log_wc(argc, argv, envp, &rev);
  60 }
  61
  62 int cmd_log(int argc, const char **argv, char **envp)
  63 {
  64         struct rev_info rev;
  65
  66         init_revisions(&rev);
  67         rev.always_show_header = 1;
  68         rev.diffopt.recursive = 1;
  69         return cmd_log_wc(argc, argv, envp, &rev);
  70 }
  71
  72 static int istitlechar(char c)
  73 {
  74         return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
  75                 (c >= '0' && c <= '9') || c == '.' || c == '_';
  76 }
  77
  78 static void reopen_stdout(struct commit *commit, int nr)
  79 {
  80         char filename[1024];
  81         char *sol;
  82         int len;
  83
  84
  85         sprintf(filename, "%04d", nr);
  86         len = strlen(filename);
  87
  88         sol = strstr(commit->buffer, "\n\n");
  89         if (sol) {
  90                 int j, space = 1;
  91
  92                 sol += 2;
  93                 /* strip [PATCH] or [PATCH blabla] */
  94                 if (!strncmp(sol, "[PATCH", 6)) {
  95                         char *eos = strchr(sol + 6, ']');
  96                         if (eos) {
  97                                 while (isspace(*eos))
  98                                         eos++;
  99                                 sol = eos;
 100                         }
 101                 }
 102
 103                 for (j = 0; len < 1024 - 6 && sol[j] && sol[j] != '\n'; j++) {
 104                         if (istitlechar(sol[j])) {
 105                                 if (space) {
 106                                         filename[len++] = '-';
 107                                         space = 0;
 108                                 }
 109                                 filename[len++] = sol[j];
 110                                 if (sol[j] == '.')
 111                                         while (sol[j + 1] == '.')
 112                                                 j++;
 113                         } else
 114                                 space = 1;
 115                 }
 116                 while (filename[len - 1] == '.' || filename[len - 1] == '-')
 117                         len--;
 118         }
 119         strcpy(filename + len, ".txt");
 120         fprintf(stderr, "%s\n", filename);
 121         freopen(filename, "w", stdout);
 122 }
 123
 124 int cmd_format_patch(int argc, const char **argv, char **envp)
 125 {
 126         struct commit *commit;
 127         struct commit **list = NULL;
 128         struct rev_info rev;
 129         int nr = 0, total;
 130         int use_stdout = 0;
 131
 132         init_revisions(&rev);
 133         rev.commit_format = CMIT_FMT_EMAIL;
 134         rev.verbose_header = 1;
 135         rev.diff = 1;
 136         rev.diffopt.with_raw = 0;
 137         rev.diffopt.with_stat = 1;
 138         rev.combine_merges = 0;
 139         rev.ignore_merges = 1;
 140         rev.diffopt.output_format = DIFF_FORMAT_PATCH;
 141         argc = setup_revisions(argc, argv, &rev, "HEAD");
 142
 143         while (argc > 1) {
 144                 if (!strcmp(argv[1], "--stdout"))
 145                         use_stdout = 1;
 146                 else
 147                         die ("unrecognized argument: %s", argv[1]);
 148                 argc--;
 149                 argv++;
 150         }
 151
 152         prepare_revision_walk(&rev);
 153         while ((commit = get_revision(&rev)) != NULL) {
 154                 /* ignore merges */
 155                 if (commit->parents && commit->parents->next)
 156                         continue;
 157                 nr++;
 158                 list = realloc(list, nr * sizeof(list[0]));
 159                 list[nr - 1] = commit;
 160         }
 161         total = nr;
 162         while (0 <= --nr) {
 163                 int shown;
 164                 commit = list[nr];
 165                 if (!use_stdout)
 166                         reopen_stdout(commit, total - nr);
 167                 shown = log_tree_commit(&rev, commit);
 168                 free(commit->buffer);
 169                 commit->buffer = NULL;
 170                 if (shown)
 171                         printf("-- \n%s\n\n", git_version_string);
 172                 if (!use_stdout)
 173                         fclose(stdout);
 174         }
 175         free(list);
 176         return 0;
 177 }
 178