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a hyperfast web frontend for git written in c

ui-commit.c (view raw)

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