2 * Builtin "git log" and related commands (show, whatchanged)
4 * (C) Copyright 2006 Linus Torvalds
14 static int cmd_log_wc(int argc, const char **argv, char **envp,
17 struct commit *commit;
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");
25 die("unrecognized argument: %s", argv[1]);
27 prepare_revision_walk(rev);
29 while ((commit = get_revision(rev)) != NULL) {
30 log_tree_commit(rev, commit);
32 commit->buffer = NULL;
37 int cmd_whatchanged(int argc, const char **argv, char **envp)
43 rev.diffopt.recursive = 1;
44 return cmd_log_wc(argc, argv, envp, &rev);
47 int cmd_show(int argc, const char **argv, char **envp)
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;
59 return cmd_log_wc(argc, argv, envp, &rev);
62 int cmd_log(int argc, const char **argv, char **envp)
67 rev.always_show_header = 1;
68 rev.diffopt.recursive = 1;
69 return cmd_log_wc(argc, argv, envp, &rev);
72 static int istitlechar(char c)
74 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
75 (c >= '0' && c <= '9') || c == '.' || c == '_';
78 static FILE *realstdout = NULL;
79 static char *output_directory = NULL;
81 static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
87 if (output_directory) {
88 strncpy(filename, output_directory, 1010);
89 len = strlen(filename);
90 if (filename[len - 1] != '/')
91 filename[len++] = '/';
94 sprintf(filename + len, "%04d", nr);
95 len = strlen(filename);
97 sol = strstr(commit->buffer, "\n\n");
102 /* strip [PATCH] or [PATCH blabla] */
103 if (!keep_subject && !strncmp(sol, "[PATCH", 6)) {
104 char *eos = strchr(sol + 6, ']');
106 while (isspace(*eos))
112 for (j = 0; len < 1024 - 6 && sol[j] && sol[j] != '\n'; j++) {
113 if (istitlechar(sol[j])) {
115 filename[len++] = '-';
118 filename[len++] = sol[j];
120 while (sol[j + 1] == '.')
125 while (filename[len - 1] == '.' || filename[len - 1] == '-')
128 strcpy(filename + len, ".txt");
129 fprintf(realstdout, "%s\n", filename);
130 freopen(filename, "w", stdout);
133 int cmd_format_patch(int argc, const char **argv, char **envp)
135 struct commit *commit;
136 struct commit **list = NULL;
138 int nr = 0, total, i, j;
141 int keep_subject = 0;
143 init_revisions(&rev);
144 rev.commit_format = CMIT_FMT_EMAIL;
145 rev.verbose_header = 1;
147 rev.diffopt.with_raw = 0;
148 rev.diffopt.with_stat = 1;
149 rev.combine_merges = 0;
150 rev.ignore_merges = 1;
151 rev.diffopt.output_format = DIFF_FORMAT_PATCH;
154 * Parse the arguments before setup_revisions(), or something
155 * like "git fmt-patch -o a123 HEAD^.." may fail; a123 is
156 * possibly a valid SHA1.
158 for (i = 1, j = 1; i < argc; i++) {
159 if (!strcmp(argv[i], "--stdout"))
161 else if (!strcmp(argv[i], "-n") ||
162 !strcmp(argv[i], "--numbered"))
164 else if (!strcmp(argv[i], "-k") ||
165 !strcmp(argv[i], "--keep-subject")) {
168 } else if (!strcmp(argv[i], "-o")) {
170 die ("Which directory?");
171 if (mkdir(argv[i + 1], 0777) < 0 && errno != EEXIST)
172 die("Could not create directory %s",
174 output_directory = strdup(argv[i + 1]);
181 if (numbered && keep_subject < 0)
182 die ("-n and -k are mutually exclusive.");
184 argc = setup_revisions(argc, argv, &rev, "HEAD");
186 die ("unrecognized argument: %s", argv[1]);
189 realstdout = fdopen(dup(1), "w");
191 prepare_revision_walk(&rev);
192 while ((commit = get_revision(&rev)) != NULL) {
194 if (commit->parents && commit->parents->next)
197 list = realloc(list, nr * sizeof(list[0]));
198 list[nr - 1] = commit;
208 reopen_stdout(commit, rev.nr, keep_subject);
209 shown = log_tree_commit(&rev, commit);
210 free(commit->buffer);
211 commit->buffer = NULL;
213 printf("-- \n%s\n\n", git_version_string);
217 if (output_directory)
218 free(output_directory);