e321959c56155289dcdb574aa11279e6f9335122
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/* this is in builtin-diff.c */
15void add_head(struct rev_info *revs);
16static int cmd_log_wc(int argc, const char **argv, char **envp,
18 struct rev_info *rev)
19{
20 struct commit *commit;
21 rev->abbrev = DEFAULT_ABBREV;
23 rev->commit_format = CMIT_FMT_DEFAULT;
24 rev->verbose_header = 1;
25 argc = setup_revisions(argc, argv, rev, "HEAD");
26 if (rev->always_show_header) {
27 if (rev->diffopt.pickaxe || rev->diffopt.filter) {
28 rev->always_show_header = 0;
29 if (rev->diffopt.output_format == DIFF_FORMAT_RAW)
30 rev->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
31 }
32 }
33 if (argc > 1)
35 die("unrecognized argument: %s", argv[1]);
36 prepare_revision_walk(rev);
38 setup_pager();
39 while ((commit = get_revision(rev)) != NULL) {
40 log_tree_commit(rev, commit);
41 free(commit->buffer);
42 commit->buffer = NULL;
43 free_commit_list(commit->parents);
44 commit->parents = NULL;
45 }
46 return 0;
47}
48int cmd_whatchanged(int argc, const char **argv, char **envp)
50{
51 struct rev_info rev;
52 init_revisions(&rev);
54 rev.diff = 1;
55 rev.diffopt.recursive = 1;
56 rev.simplify_history = 0;
57 return cmd_log_wc(argc, argv, envp, &rev);
58}
59int cmd_show(int argc, const char **argv, char **envp)
61{
62 struct rev_info rev;
63 init_revisions(&rev);
65 rev.diff = 1;
66 rev.diffopt.recursive = 1;
67 rev.combine_merges = 1;
68 rev.dense_combined_merges = 1;
69 rev.always_show_header = 1;
70 rev.ignore_merges = 0;
71 rev.no_walk = 1;
72 return cmd_log_wc(argc, argv, envp, &rev);
73}
74int cmd_log(int argc, const char **argv, char **envp)
76{
77 struct rev_info rev;
78 init_revisions(&rev);
80 rev.always_show_header = 1;
81 rev.diffopt.recursive = 1;
82 return cmd_log_wc(argc, argv, envp, &rev);
83}
84static int istitlechar(char c)
86{
87 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
88 (c >= '0' && c <= '9') || c == '.' || c == '_';
89}
90static char *extra_headers = NULL;
92static int extra_headers_size = 0;
93static int git_format_config(const char *var, const char *value)
95{
96 if (!strcmp(var, "format.headers")) {
97 int len = strlen(value);
98 extra_headers_size += len + 1;
99 extra_headers = realloc(extra_headers, extra_headers_size);
100 extra_headers[extra_headers_size - len - 1] = 0;
101 strcat(extra_headers, value);
102 return 0;
103 }
104 return git_default_config(var, value);
105}
106static FILE *realstdout = NULL;
109static const char *output_directory = NULL;
110static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
112{
113 char filename[1024];
114 char *sol;
115 int len = 0;
116 if (output_directory) {
118 strlcpy(filename, output_directory, 1010);
119 len = strlen(filename);
120 if (filename[len - 1] != '/')
121 filename[len++] = '/';
122 }
123 sprintf(filename + len, "%04d", nr);
125 len = strlen(filename);
126 sol = strstr(commit->buffer, "\n\n");
128 if (sol) {
129 int j, space = 1;
130 sol += 2;
132 /* strip [PATCH] or [PATCH blabla] */
133 if (!keep_subject && !strncmp(sol, "[PATCH", 6)) {
134 char *eos = strchr(sol + 6, ']');
135 if (eos) {
136 while (isspace(*eos))
137 eos++;
138 sol = eos;
139 }
140 }
141 for (j = 0; len < 1024 - 6 && sol[j] && sol[j] != '\n'; j++) {
143 if (istitlechar(sol[j])) {
144 if (space) {
145 filename[len++] = '-';
146 space = 0;
147 }
148 filename[len++] = sol[j];
149 if (sol[j] == '.')
150 while (sol[j + 1] == '.')
151 j++;
152 } else
153 space = 1;
154 }
155 while (filename[len - 1] == '.' || filename[len - 1] == '-')
156 len--;
157 }
158 strcpy(filename + len, ".txt");
159 fprintf(realstdout, "%s\n", filename);
160 freopen(filename, "w", stdout);
161}
162int cmd_format_patch(int argc, const char **argv, char **envp)
164{
165 struct commit *commit;
166 struct commit **list = NULL;
167 struct rev_info rev;
168 int nr = 0, total, i, j;
169 int use_stdout = 0;
170 int numbered = 0;
171 int start_number = -1;
172 int keep_subject = 0;
173 char *add_signoff = NULL;
174 init_revisions(&rev);
176 rev.commit_format = CMIT_FMT_EMAIL;
177 rev.verbose_header = 1;
178 rev.diff = 1;
179 rev.combine_merges = 0;
180 rev.ignore_merges = 1;
181 rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH;
182 git_config(git_format_config);
184 rev.extra_headers = extra_headers;
185 /*
187 * Parse the arguments before setup_revisions(), or something
188 * like "git fmt-patch -o a123 HEAD^.." may fail; a123 is
189 * possibly a valid SHA1.
190 */
191 for (i = 1, j = 1; i < argc; i++) {
192 if (!strcmp(argv[i], "--stdout"))
193 use_stdout = 1;
194 else if (!strcmp(argv[i], "-n") ||
195 !strcmp(argv[i], "--numbered"))
196 numbered = 1;
197 else if (!strncmp(argv[i], "--start-number=", 15))
198 start_number = strtol(argv[i] + 15, NULL, 10);
199 else if (!strcmp(argv[i], "--start-number")) {
200 i++;
201 if (i == argc)
202 die("Need a number for --start-number");
203 start_number = strtol(argv[i], NULL, 10);
204 }
205 else if (!strcmp(argv[i], "-k") ||
206 !strcmp(argv[i], "--keep-subject")) {
207 keep_subject = 1;
208 rev.total = -1;
209 }
210 else if (!strcmp(argv[i], "--output-directory") ||
211 !strcmp(argv[i], "-o")) {
212 i++;
213 if (argc <= i)
214 die("Which directory?");
215 if (output_directory)
216 die("Two output directories?");
217 output_directory = argv[i];
218 }
219 else if (!strcmp(argv[i], "--signoff") ||
220 !strcmp(argv[i], "-s")) {
221 const char *committer;
222 const char *endpos;
223 setup_ident();
224 committer = git_committer_info(1);
225 endpos = strchr(committer, '>');
226 if (!endpos)
227 die("bogos committer info %s\n", committer);
228 add_signoff = xmalloc(endpos - committer + 2);
229 memcpy(add_signoff, committer, endpos - committer + 1);
230 add_signoff[endpos - committer + 1] = 0;
231 }
232 else if (!strcmp(argv[i], "--attach"))
233 rev.mime_boundary = git_version_string;
234 else if (!strncmp(argv[i], "--attach=", 9))
235 rev.mime_boundary = argv[i] + 9;
236 else
237 argv[j++] = argv[i];
238 }
239 argc = j;
240 if (start_number < 0)
242 start_number = 1;
243 if (numbered && keep_subject)
244 die ("-n and -k are mutually exclusive.");
245 argc = setup_revisions(argc, argv, &rev, "HEAD");
247 if (argc > 1)
248 die ("unrecognized argument: %s", argv[1]);
249 if (output_directory) {
251 if (use_stdout)
252 die("standard output, or directory, which one?");
253 if (mkdir(output_directory, 0777) < 0 && errno != EEXIST)
254 die("Could not create directory %s",
255 output_directory);
256 }
257 if (rev.pending.nr == 1) {
259 rev.pending.objects[0].item->flags |= UNINTERESTING;
260 add_head(&rev);
261 }
262 if (!use_stdout)
264 realstdout = fdopen(dup(1), "w");
265 prepare_revision_walk(&rev);
267 while ((commit = get_revision(&rev)) != NULL) {
268 /* ignore merges */
269 if (commit->parents && commit->parents->next)
270 continue;
271 nr++;
272 list = realloc(list, nr * sizeof(list[0]));
273 list[nr - 1] = commit;
274 }
275 total = nr;
276 if (numbered)
277 rev.total = total + start_number - 1;
278 rev.add_signoff = add_signoff;
279 while (0 <= --nr) {
280 int shown;
281 commit = list[nr];
282 rev.nr = total - nr + (start_number - 1);
283 if (!use_stdout)
284 reopen_stdout(commit, rev.nr, keep_subject);
285 shown = log_tree_commit(&rev, commit);
286 free(commit->buffer);
287 commit->buffer = NULL;
288 /* We put one extra blank line between formatted
290 * patches and this flag is used by log-tree code
291 * to see if it needs to emit a LF before showing
292 * the log; when using one file per patch, we do
293 * not want the extra blank line.
294 */
295 if (!use_stdout)
296 rev.shown_one = 0;
297 if (shown) {
298 if (rev.mime_boundary)
299 printf("\n--%s%s--\n\n\n",
300 mime_boundary_leader,
301 rev.mime_boundary);
302 else
303 printf("-- \n%s\n\n", git_version_string);
304 }
305 if (!use_stdout)
306 fclose(stdout);
307 }
308 free(list);
309 return 0;
310}
311