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;
 14static char *curr_rev;
 15
 16static struct fileinfo {
 17	char status;
 18	unsigned char old_sha1[20];
 19	unsigned char new_sha1[20];
 20	unsigned short old_mode;
 21	unsigned short new_mode;
 22	char *old_path;
 23	char *new_path;
 24	unsigned int added;
 25	unsigned int removed;
 26} *items;
 27
 28
 29void print_fileinfo(struct fileinfo *info)
 30{
 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	cgit_diff_link(info->new_path, NULL, NULL, cgit_query_head, curr_rev,
 79		       NULL, info->new_path);
 80	if (info->status == DIFF_STATUS_COPIED || info->status == DIFF_STATUS_RENAMED)
 81		htmlf(" (%s from %s)",
 82		      info->status == DIFF_STATUS_COPIED ? "copied" : "renamed",
 83		      info->old_path);
 84	html("</td><td class='right'>");
 85	htmlf("%d", info->added + info->removed);
 86	html("</td><td class='graph'>");
 87	htmlf("<table width='%d%%'><tr>", (max_changes > 100 ? 100 : max_changes));
 88	htmlf("<td class='add' style='width: %.1f%%;'/>",
 89	      info->added * 100.0 / max_changes);
 90	htmlf("<td class='rem' style='width: %.1f%%;'/>",
 91	      info->removed * 100.0 / max_changes);
 92	htmlf("<td class='none' style='width: %.1f%%;'/>",
 93	      (max_changes - info->removed - info->added) * 100.0 / max_changes);
 94	html("</tr></table></td></tr>\n");
 95}
 96
 97void cgit_count_diff_lines(char *line, int len)
 98{
 99	if (line && (len > 0)) {
100		if (line[0] == '+')
101			lines_added++;
102		else if (line[0] == '-')
103			lines_removed++;
104	}
105}
106
107void inspect_filepair(struct diff_filepair *pair)
108{
109	files++;
110	lines_added = 0;
111	lines_removed = 0;
112	cgit_diff_files(pair->one->sha1, pair->two->sha1, cgit_count_diff_lines);
113	if (files >= slots) {
114		if (slots == 0)
115			slots = 4;
116		else
117			slots = slots * 2;
118		items = xrealloc(items, slots * sizeof(struct fileinfo));
119	}
120	items[files-1].status = pair->status;
121	hashcpy(items[files-1].old_sha1, pair->one->sha1);
122	hashcpy(items[files-1].new_sha1, pair->two->sha1);
123	items[files-1].old_mode = pair->one->mode;
124	items[files-1].new_mode = pair->two->mode;
125	items[files-1].old_path = xstrdup(pair->one->path);
126	items[files-1].new_path = xstrdup(pair->two->path);
127	items[files-1].added = lines_added;
128	items[files-1].removed = lines_removed;
129	if (lines_added + lines_removed > max_changes)
130		max_changes = lines_added + lines_removed;
131	total_adds += lines_added;
132	total_rems += lines_removed;
133}
134
135
136void cgit_print_commit(char *hex)
137{
138	struct commit *commit, *parent;
139	struct commitinfo *info;
140	struct commit_list *p;
141	unsigned char sha1[20];
142	char *tmp;
143	int i;
144
145	if (!hex)
146		hex = cgit_query_head;
147	curr_rev = hex;
148
149	if (get_sha1(hex, sha1)) {
150		cgit_print_error(fmt("Bad object id: %s", hex));
151		return;
152	}
153	commit = lookup_commit_reference(sha1);
154	if (!commit) {
155		cgit_print_error(fmt("Bad commit reference: %s", hex));
156		return;
157	}
158	info = cgit_parse_commit(commit);
159
160	html("<table class='commit-info'>\n");
161	html("<tr><th>author</th><td>");
162	html_txt(info->author);
163	html(" ");
164	html_txt(info->author_email);
165	html("</td><td class='right'>");
166	cgit_print_date(info->author_date, FMT_LONGDATE);
167	html("</td></tr>\n");
168	html("<tr><th>committer</th><td>");
169	html_txt(info->committer);
170	html(" ");
171	html_txt(info->committer_email);
172	html("</td><td class='right'>");
173	cgit_print_date(info->committer_date, FMT_LONGDATE);
174	html("</td></tr>\n");
175	html("<tr><th>tree</th><td colspan='2' class='sha1'>");
176	tmp = xstrdup(hex);
177	cgit_tree_link(sha1_to_hex(commit->tree->object.sha1), NULL, NULL,
178		       cgit_query_head, tmp, NULL);
179	html("</td></tr>\n");
180      	for (p = commit->parents; p ; p = p->next) {
181		parent = lookup_commit_reference(p->item->object.sha1);
182		if (!parent) {
183			html("<tr><td colspan='3'>");
184			cgit_print_error("Error reading parent commit");
185			html("</td></tr>");
186			continue;
187		}
188		html("<tr><th>parent</th>"
189		     "<td colspan='2' class='sha1'>");
190		cgit_commit_link(sha1_to_hex(p->item->object.sha1), NULL, NULL,
191				 cgit_query_head, sha1_to_hex(p->item->object.sha1));
192		html(" (");
193		cgit_diff_link("diff", NULL, NULL, cgit_query_head, hex,
194			       sha1_to_hex(p->item->object.sha1), NULL);
195		html(")</td></tr>");
196	}
197	if (cgit_repo->snapshots) {
198		html("<tr><th>download</th><td colspan='2' class='sha1'>");
199		cgit_print_snapshot_links(cgit_query_repo, cgit_query_head,
200					  hex, cgit_repo->snapshots);
201		html("</td></tr>");
202	}
203	html("</table>\n");
204	html("<div class='commit-subject'>");
205	html_txt(info->subject);
206	html("</div>");
207	html("<div class='commit-msg'>");
208	html_txt(info->msg);
209	html("</div>");
210	if (!(commit->parents && commit->parents->next && commit->parents->next->next)) {
211		html("<div class='diffstat-header'>Diffstat</div>");
212		html("<table class='diffstat'>");
213		max_changes = 0;
214		cgit_diff_commit(commit, inspect_filepair);
215		for(i = 0; i<files; i++)
216			print_fileinfo(&items[i]);
217		html("</table>");
218		html("<div class='diffstat-summary'>");
219		htmlf("%d files changed, %d insertions, %d deletions (",
220		      files, total_adds, total_rems);
221		cgit_diff_link("show diff", NULL, NULL, cgit_query_head, hex,
222			       NULL, NULL);
223		html(")</div>");
224	}
225	cgit_free_commitinfo(info);
226}