1/* ui-commit.c: generate commit view
  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
 11static int files, slots;
 12static int total_adds, total_rems, max_changes;
 13static int lines_added, lines_removed;
 14
 15static struct fileinfo {
 16	char status;
 17	unsigned char old_sha1[20];
 18	unsigned char new_sha1[20];
 19	unsigned short old_mode;
 20	unsigned short new_mode;
 21	char *old_path;
 22	char *new_path;
 23	unsigned int added;
 24	unsigned int removed;
 25} *items;
 26
 27
 28void print_fileinfo(struct fileinfo *info)
 29{
 30	char *query, *query2;
 31	char *class;
 32
 33	switch (info->status) {
 34	case DIFF_STATUS_ADDED:
 35		class = "add";
 36		break;
 37	case DIFF_STATUS_COPIED:
 38		class = "cpy";
 39		break;
 40	case DIFF_STATUS_DELETED:
 41		class = "del";
 42		break;
 43	case DIFF_STATUS_MODIFIED:
 44		class = "upd";
 45		break;
 46	case DIFF_STATUS_RENAMED:
 47		class = "mov";
 48		break;
 49	case DIFF_STATUS_TYPE_CHANGED:
 50		class = "typ";
 51		break;
 52	case DIFF_STATUS_UNKNOWN:
 53		class = "unk";
 54		break;
 55	case DIFF_STATUS_UNMERGED:
 56		class = "stg";
 57		break;
 58	default:
 59		die("bug: unhandled diff status %c", info->status);
 60	}
 61
 62	html("<tr>");
 63	htmlf("<td class='mode'>");
 64	if (is_null_sha1(info->new_sha1)) {
 65		html_filemode(info->old_mode);
 66	} else {
 67		html_filemode(info->new_mode);
 68	}
 69
 70	if (info->old_mode != info->new_mode &&
 71	    !is_null_sha1(info->old_sha1) &&
 72	    !is_null_sha1(info->new_sha1)) {
 73		html("<span class='modechange'>[");
 74		html_filemode(info->old_mode);
 75		html("]</span>");
 76	}
 77	htmlf("</td><td class='%s'>", class);
 78	query = fmt("id=%s&amp;id2=%s&amp;path=%s", sha1_to_hex(info->old_sha1),
 79		    sha1_to_hex(info->new_sha1), info->new_path);
 80	html_link_open(cgit_pageurl(cgit_query_repo, "diff", query),
 81		       NULL, NULL);
 82	if (info->status == DIFF_STATUS_COPIED ||
 83	    info->status == DIFF_STATUS_RENAMED) {
 84		html_txt(info->new_path);
 85		htmlf("</a> (%s from ", info->status == DIFF_STATUS_COPIED ?
 86		      "copied" : "renamed");
 87		query2 = fmt("id=%s", sha1_to_hex(info->old_sha1));
 88		html_link_open(cgit_pageurl(cgit_query_repo, "view", query2),
 89			       NULL, NULL);
 90		html_txt(info->old_path);
 91		html("</a>)");
 92	} else {
 93		html_txt(info->new_path);
 94		html("</a>");
 95	}
 96	html("</td><td class='right'>");
 97	htmlf("%d", info->added + info->removed);
 98	html("</td><td class='graph'>");
 99	htmlf("<table width='%d%%'><tr>", (max_changes > 100 ? 100 : max_changes));
100	htmlf("<td class='add' style='width: %.1f%%;'/>",
101	      info->added * 100.0 / max_changes);
102	htmlf("<td class='rem' style='width: %.1f%%;'/>",
103	      info->removed * 100.0 / max_changes);
104	htmlf("<td class='none' style='width: %.1f%%;'/>",
105	      (max_changes - info->removed - info->added) * 100.0 / max_changes);
106	html("</tr></table></td></tr>\n");
107}
108
109void cgit_count_diff_lines(char *line, int len)
110{
111	if (line && (len > 0)) {
112		if (line[0] == '+')
113			lines_added++;
114		else if (line[0] == '-')
115			lines_removed++;
116	}
117}
118
119void inspect_filepair(struct diff_filepair *pair)
120{
121	files++;
122	lines_added = 0;
123	lines_removed = 0;
124	cgit_diff_files(pair->one->sha1, pair->two->sha1, cgit_count_diff_lines);
125	if (files >= slots) {
126		if (slots == 0)
127			slots = 4;
128		else
129			slots = slots * 2;
130		items = xrealloc(items, slots * sizeof(struct fileinfo));
131	}
132	items[files-1].status = pair->status;
133	hashcpy(items[files-1].old_sha1, pair->one->sha1);
134	hashcpy(items[files-1].new_sha1, pair->two->sha1);
135	items[files-1].old_mode = pair->one->mode;
136	items[files-1].new_mode = pair->two->mode;
137	items[files-1].old_path = xstrdup(pair->one->path);
138	items[files-1].new_path = xstrdup(pair->two->path);
139	items[files-1].added = lines_added;
140	items[files-1].removed = lines_removed;
141	if (lines_added + lines_removed > max_changes)
142		max_changes = lines_added + lines_removed;
143	total_adds += lines_added;
144	total_rems += lines_removed;
145}
146
147
148void cgit_print_commit(const char *hex)
149{
150	struct commit *commit, *parent;
151	struct commitinfo *info;
152	struct commit_list *p;
153	unsigned char sha1[20];
154	char *query;
155	char *filename;
156	char *tmp;
157	int i;
158
159	if (get_sha1(hex, sha1)) {
160		cgit_print_error(fmt("Bad object id: %s", hex));
161		return;
162	}
163	commit = lookup_commit_reference(sha1);
164	if (!commit) {
165		cgit_print_error(fmt("Bad commit reference: %s", hex));
166		return;
167	}
168	info = cgit_parse_commit(commit);
169
170	html("<table class='commit-info'>\n");
171	html("<tr><th>author</th><td>");
172	html_txt(info->author);
173	html(" ");
174	html_txt(info->author_email);
175	html("</td><td class='right'>");
176	cgit_print_date(info->author_date, FMT_LONGDATE);
177	html("</td></tr>\n");
178	html("<tr><th>committer</th><td>");
179	html_txt(info->committer);
180	html(" ");
181	html_txt(info->committer_email);
182	html("</td><td class='right'>");
183	cgit_print_date(info->committer_date, FMT_LONGDATE);
184	html("</td></tr>\n");
185	html("<tr><th>tree</th><td colspan='2' class='sha1'>");
186	tmp = xstrdup(hex);
187	cgit_tree_link(sha1_to_hex(commit->tree->object.sha1), NULL, NULL,
188		       cgit_query_head, tmp, NULL);
189	html("</td></tr>\n");
190      	for (p = commit->parents; p ; p = p->next) {
191		parent = lookup_commit_reference(p->item->object.sha1);
192		if (!parent) {
193			html("<tr><td colspan='3'>");
194			cgit_print_error("Error reading parent commit");
195			html("</td></tr>");
196			continue;
197		}
198		html("<tr><th>parent</th>"
199		     "<td colspan='2' class='sha1'>"
200		     "<a href='");
201		query = fmt("h=%s", sha1_to_hex(p->item->object.sha1));
202		html_attr(cgit_pageurl(cgit_query_repo, "commit", query));
203		htmlf("'>%s</a> (<a href='",
204		      sha1_to_hex(p->item->object.sha1));
205		query = fmt("id=%s&amp;id2=%s", sha1_to_hex(parent->tree->object.sha1),
206			    sha1_to_hex(commit->tree->object.sha1));
207		html_attr(cgit_pageurl(cgit_query_repo, "diff", query));
208		html("'>diff</a>)</td></tr>");
209	}
210	if (cgit_repo->snapshots) {
211		htmlf("<tr><th>download</th><td colspan='2' class='sha1'><a href='");
212		filename = fmt("%s-%s.zip", cgit_query_repo, hex);
213		html_attr(cgit_pageurl(cgit_query_repo, "snapshot",
214				       fmt("id=%s&amp;name=%s", hex, filename)));
215		htmlf("'>%s</a></td></tr>", filename);
216	}
217	html("</table>\n");
218	html("<div class='commit-subject'>");
219	html_txt(info->subject);
220	html("</div>");
221	html("<div class='commit-msg'>");
222	html_txt(info->msg);
223	html("</div>");
224	if (!(commit->parents && commit->parents->next && commit->parents->next->next)) {
225		html("<div class='diffstat-header'>Diffstat</div>");
226		html("<table class='diffstat'>");
227		max_changes = 0;
228		cgit_diff_commit(commit, inspect_filepair);
229		for(i = 0; i<files; i++)
230			print_fileinfo(&items[i]);
231		html("</table>");
232		html("<div class='diffstat-summary'>");
233		htmlf("%d files changed, %d insertions, %d deletions (",
234		      files, total_adds, total_rems);
235		query = fmt("h=%s", hex);
236		html_link_open(cgit_pageurl(cgit_query_repo, "diff", query), NULL, NULL);
237		html("show diff</a>)");
238		html("</div>");
239	}
240	cgit_free_commitinfo(info);
241}