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a hyperfast web frontend for git written in c

ui-log.c (view raw)

  1/* ui-log.c: functions for log output
  2 *
  3 * Copyright (C) 2006 Lars Hjemli
  4 *
  5 * Licensed under GNU General Public License v2
  6 *   (see COPYING for full license text)
  7 */
  8
  9#include "cgit.h"
 10#include "html.h"
 11#include "ui-shared.h"
 12#include "vector.h"
 13
 14int files, add_lines, rem_lines;
 15
 16void count_lines(char *line, int size)
 17{
 18	if (size <= 0)
 19		return;
 20
 21	if (line[0] == '+')
 22		add_lines++;
 23
 24	else if (line[0] == '-')
 25		rem_lines++;
 26}
 27
 28void inspect_files(struct diff_filepair *pair)
 29{
 30	unsigned long old_size = 0;
 31	unsigned long new_size = 0;
 32	int binary = 0;
 33
 34	files++;
 35	if (ctx.repo->enable_log_linecount)
 36		cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
 37				&new_size, &binary, 0, ctx.qry.ignorews,
 38				count_lines);
 39}
 40
 41void show_commit_decorations(struct commit *commit)
 42{
 43	struct name_decoration *deco;
 44	static char buf[1024];
 45
 46	buf[sizeof(buf) - 1] = 0;
 47	deco = lookup_decoration(&name_decoration, &commit->object);
 48	while (deco) {
 49		if (!prefixcmp(deco->name, "refs/heads/")) {
 50			strncpy(buf, deco->name + 11, sizeof(buf) - 1);
 51			cgit_log_link(buf, NULL, "branch-deco", buf, NULL,
 52				      ctx.qry.vpath, 0, NULL, NULL,
 53				      ctx.qry.showmsg);
 54		}
 55		else if (!prefixcmp(deco->name, "tag: refs/tags/")) {
 56			strncpy(buf, deco->name + 15, sizeof(buf) - 1);
 57			cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
 58		}
 59		else if (!prefixcmp(deco->name, "refs/tags/")) {
 60			strncpy(buf, deco->name + 10, sizeof(buf) - 1);
 61			cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
 62		}
 63		else if (!prefixcmp(deco->name, "refs/remotes/")) {
 64			strncpy(buf, deco->name + 13, sizeof(buf) - 1);
 65			cgit_log_link(buf, NULL, "remote-deco", NULL,
 66				      sha1_to_hex(commit->object.sha1),
 67				      ctx.qry.vpath, 0, NULL, NULL,
 68				      ctx.qry.showmsg);
 69		}
 70		else {
 71			strncpy(buf, deco->name, sizeof(buf) - 1);
 72			cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
 73					 sha1_to_hex(commit->object.sha1),
 74					 ctx.qry.vpath, 0);
 75		}
 76		deco = deco->next;
 77	}
 78}
 79
 80void print_commit(struct commit *commit, struct rev_info *revs)
 81{
 82	struct commitinfo *info;
 83	char *tmp;
 84	int cols = 2;
 85	struct strbuf graphbuf = STRBUF_INIT;
 86
 87	if (ctx.repo->enable_log_filecount) {
 88		cols++;
 89		if (ctx.repo->enable_log_linecount)
 90			cols++;
 91	}
 92
 93	if (revs->graph) {
 94		/* Advance graph until current commit */
 95		while (!graph_next_line(revs->graph, &graphbuf)) {
 96			/* Print graph segment in otherwise empty table row */
 97			html("<tr class='nohover'><td/><td class='commitgraph'>");
 98			html(graphbuf.buf);
 99			htmlf("</td><td colspan='%d' /></tr>\n", cols);
100			strbuf_setlen(&graphbuf, 0);
101		}
102		/* Current commit's graph segment is now ready in graphbuf */
103	}
104
105	info = cgit_parse_commit(commit);
106	htmlf("<tr%s><td>",
107		ctx.qry.showmsg ? " class='logheader'" : "");
108	tmp = fmt("id=%s", sha1_to_hex(commit->object.sha1));
109	tmp = cgit_fileurl(ctx.repo->url, "commit", ctx.qry.vpath, tmp);
110	html_link_open(tmp, NULL, NULL);
111	cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
112	html_link_close();
113	html("</td>");
114
115	if (revs->graph) {
116		/* Print graph segment for current commit */
117		html("<td class='commitgraph'>");
118		html(graphbuf.buf);
119		html("</td>");
120		strbuf_setlen(&graphbuf, 0);
121	}
122
123	htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : "");
124	cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
125			 sha1_to_hex(commit->object.sha1), ctx.qry.vpath, 0);
126	show_commit_decorations(commit);
127	html("</td><td>");
128	html_txt(info->author);
129	if (ctx.repo->enable_log_filecount) {
130		files = 0;
131		add_lines = 0;
132		rem_lines = 0;
133		cgit_diff_commit(commit, inspect_files, ctx.qry.vpath);
134		html("</td><td>");
135		htmlf("%d", files);
136		if (ctx.repo->enable_log_linecount) {
137			html("</td><td>");
138			htmlf("-%d/+%d", rem_lines, add_lines);
139		}
140	}
141	html("</td></tr>\n");
142
143	if (revs->graph || ctx.qry.showmsg) { /* Print a second table row */
144		struct strbuf msgbuf = STRBUF_INIT;
145		html("<tr class='nohover'><td/>"); /* Empty 'Age' column */
146
147		if (ctx.qry.showmsg) {
148			/* Concatenate commit message + notes in msgbuf */
149			if (info->msg && *(info->msg)) {
150				strbuf_addstr(&msgbuf, info->msg);
151				strbuf_addch(&msgbuf, '\n');
152			}
153			format_note(NULL, commit->object.sha1, &msgbuf,
154			            PAGE_ENCODING,
155			            NOTES_SHOW_HEADER | NOTES_INDENT);
156			strbuf_addch(&msgbuf, '\n');
157			strbuf_ltrim(&msgbuf);
158		}
159
160		if (revs->graph) {
161			int lines = 0;
162
163			/* Calculate graph padding */
164			if (ctx.qry.showmsg) {
165				/* Count #lines in commit message + notes */
166				const char *p = msgbuf.buf;
167				lines = 1;
168				while ((p = strchr(p, '\n'))) {
169					p++;
170					lines++;
171				}
172			}
173
174			/* Print graph padding */
175			html("<td class='commitgraph'>");
176			while (lines > 0 || !graph_is_commit_finished(revs->graph)) {
177				if (graphbuf.len)
178					html("\n");
179				strbuf_setlen(&graphbuf, 0);
180				graph_next_line(revs->graph, &graphbuf);
181				html(graphbuf.buf);
182				lines--;
183			}
184			html("</td>\n");
185		}
186
187		/* Print msgbuf into remainder of table row */
188		htmlf("<td colspan='%d'%s>\n", cols,
189			ctx.qry.showmsg ? " class='logmsg'" : "");
190		html_txt(msgbuf.buf);
191		html("</td></tr>\n");
192		strbuf_release(&msgbuf);
193	}
194
195	strbuf_release(&graphbuf);
196	cgit_free_commitinfo(info);
197}
198
199static const char *disambiguate_ref(const char *ref)
200{
201	unsigned char sha1[20];
202	const char *longref;
203
204	longref = fmt("refs/heads/%s", ref);
205	if (get_sha1(longref, sha1) == 0)
206		return longref;
207
208	return ref;
209}
210
211static char *next_token(char **src)
212{
213	char *result;
214
215	if (!src || !*src)
216		return NULL;
217	while (isspace(**src))
218		(*src)++;
219	if (!**src)
220		return NULL;
221	result = *src;
222	while (**src) {
223		if (isspace(**src)) {
224			**src = '\0';
225			(*src)++;
226			break;
227		}
228		(*src)++;
229	}
230	return result;
231}
232
233void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern,
234		    char *path, int pager)
235{
236	struct rev_info rev;
237	struct commit *commit;
238	struct vector vec = VECTOR_INIT(char *);
239	int i, columns = 3;
240	char *arg;
241
242	/* First argv is NULL */
243	vector_push(&vec, NULL, 0);
244
245	if (!tip)
246		tip = ctx.qry.head;
247	tip = disambiguate_ref(tip);
248	vector_push(&vec, &tip, 0);
249
250	if (grep && pattern && *pattern) {
251		pattern = xstrdup(pattern);
252		if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
253		    !strcmp(grep, "committer")) {
254			arg = fmt("--%s=%s", grep, pattern);
255			vector_push(&vec, &arg, 0);
256		}
257		if (!strcmp(grep, "range")) {
258			/* Split the pattern at whitespace and add each token
259			 * as a revision expression. Do not accept other
260			 * rev-list options. Also, replace the previously
261			 * pushed tip (it's no longer relevant).
262			 */
263			vec.count--;
264			while ((arg = next_token(&pattern))) {
265				if (*arg == '-') {
266					fprintf(stderr, "Bad range expr: %s\n",
267						arg);
268					break;
269				}
270				vector_push(&vec, &arg, 0);
271			}
272		}
273	}
274	if (ctx.repo->enable_commit_graph) {
275		static const char *graph_arg = "--graph";
276		vector_push(&vec, &graph_arg, 0);
277	}
278
279	if (path) {
280		arg = "--";
281		vector_push(&vec, &arg, 0);
282		vector_push(&vec, &path, 0);
283	}
284
285	/* Make sure the vector is NULL-terminated */
286	vector_push(&vec, NULL, 0);
287	vec.count--;
288
289	init_revisions(&rev, NULL);
290	rev.abbrev = DEFAULT_ABBREV;
291	rev.commit_format = CMIT_FMT_DEFAULT;
292	rev.verbose_header = 1;
293	rev.show_root_diff = 0;
294	setup_revisions(vec.count, vec.data, &rev, NULL);
295	load_ref_decorations(DECORATE_FULL_REFS);
296	rev.show_decorations = 1;
297	rev.grep_filter.regflags |= REG_ICASE;
298	compile_grep_patterns(&rev.grep_filter);
299	prepare_revision_walk(&rev);
300
301	if (pager)
302		html("<table class='list nowrap'>");
303
304	html("<tr class='nohover'><th class='left'>Age</th>");
305	if (ctx.repo->enable_commit_graph)
306		html("<th></th>");
307	html("<th class='left'>Commit message");
308	if (pager) {
309		html(" (");
310		cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
311			      NULL, ctx.qry.head, ctx.qry.sha1,
312			      ctx.qry.vpath, ctx.qry.ofs, ctx.qry.grep,
313			      ctx.qry.search, ctx.qry.showmsg ? 0 : 1);
314		html(")");
315	}
316	html("</th><th class='left'>Author</th>");
317	if (ctx.repo->enable_log_filecount) {
318		html("<th class='left'>Files</th>");
319		columns++;
320		if (ctx.repo->enable_log_linecount) {
321			html("<th class='left'>Lines</th>");
322			columns++;
323		}
324	}
325	html("</tr>\n");
326
327	if (ofs<0)
328		ofs = 0;
329
330	for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
331		free(commit->buffer);
332		commit->buffer = NULL;
333		free_commit_list(commit->parents);
334		commit->parents = NULL;
335	}
336
337	for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
338		print_commit(commit, &rev);
339		free(commit->buffer);
340		commit->buffer = NULL;
341		free_commit_list(commit->parents);
342		commit->parents = NULL;
343	}
344	if (pager) {
345		html("</table><div class='pager'>");
346		if (ofs > 0) {
347			cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
348				      ctx.qry.sha1, ctx.qry.vpath,
349				      ofs - cnt, ctx.qry.grep,
350				      ctx.qry.search, ctx.qry.showmsg);
351			html("&nbsp;");
352		}
353		if ((commit = get_revision(&rev)) != NULL) {
354			cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
355				      ctx.qry.sha1, ctx.qry.vpath,
356				      ofs + cnt, ctx.qry.grep,
357				      ctx.qry.search, ctx.qry.showmsg);
358		}
359		html("</div>");
360	} else if ((commit = get_revision(&rev)) != NULL) {
361		html("<tr class='nohover'><td colspan='3'>");
362		cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
363			      ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg);
364		html("</td></tr>\n");
365	}
366}