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