1/* ui-tree.c: functions for tree 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
 13char *curr_rev;
 14char *match_path;
 15int header = 0;
 16
 17static void print_object(const unsigned char *sha1, char *path)
 18{
 19	enum object_type type;
 20	char *buf;
 21	unsigned long size, lineno, start, idx;
 22	const char *linefmt = "<tr><td class='no'><a id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a></td><td class='txt'>";
 23
 24	type = sha1_object_info(sha1, &size);
 25	if (type == OBJ_BAD) {
 26		cgit_print_error(fmt("Bad object name: %s",
 27				     sha1_to_hex(sha1)));
 28		return;
 29	}
 30
 31	buf = read_sha1_file(sha1, &type, &size);
 32	if (!buf) {
 33		cgit_print_error(fmt("Error reading object %s",
 34				     sha1_to_hex(sha1)));
 35		return;
 36	}
 37
 38	html(" (");
 39	cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
 40		        curr_rev, path);
 41	htmlf(")<br/>blob: %s", sha1_to_hex(sha1));
 42
 43	html("<table summary='blob content' class='blob'>\n");
 44	idx = 0;
 45	start = 0;
 46	lineno = 0;
 47	while(idx < size) {
 48		if (buf[idx] == '\n') {
 49			buf[idx] = '\0';
 50			htmlf(linefmt, ++lineno);
 51			html_txt(buf + start);
 52			html("</td></tr>\n");
 53			start = idx + 1;
 54		}
 55		idx++;
 56	}
 57	if (start < idx) {
 58		htmlf(linefmt, ++lineno);
 59		html_txt(buf + start);
 60	}
 61	html("</td></tr>\n");
 62	html("</table>\n");
 63}
 64
 65
 66static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 67		   const char *pathname, unsigned int mode, int stage,
 68		   void *cbdata)
 69{
 70	char *name;
 71	char *fullpath;
 72	enum object_type type;
 73	unsigned long size = 0;
 74
 75	name = xstrdup(pathname);
 76	fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
 77		       ctx.qry.path ? "/" : "", name);
 78
 79	if (!S_ISGITLINK(mode)) {
 80		type = sha1_object_info(sha1, &size);
 81		if (type == OBJ_BAD) {
 82			htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 83			      name,
 84			      sha1_to_hex(sha1));
 85			return 0;
 86		}
 87	}
 88
 89	html("<tr><td class='ls-mode'>");
 90	cgit_print_filemode(mode);
 91	html("</td><td>");
 92	if (S_ISGITLINK(mode)) {
 93		htmlf("<a class='ls-mod' href='");
 94		html_attr(fmt(ctx.repo->module_link,
 95			      name,
 96			      sha1_to_hex(sha1)));
 97		html("'>");
 98		html_txt(name);
 99		html("</a>");
100	} else if (S_ISDIR(mode)) {
101		cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
102			       curr_rev, fullpath);
103	} else {
104		cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
105			       curr_rev, fullpath);
106	}
107	htmlf("</td><td class='ls-size'>%li</td>", size);
108
109	html("<td>");
110	cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
111		      fullpath, 0, NULL, NULL, ctx.qry.showmsg);
112	if (ctx.repo->max_stats)
113		cgit_stats_link("stats", NULL, "button", ctx.qry.head,
114				fullpath);
115	html("</td></tr>\n");
116	free(name);
117	return 0;
118}
119
120static void ls_head()
121{
122	html("<table summary='tree listing' class='list'>\n");
123	html("<tr class='nohover'>");
124	html("<th class='left'>Mode</th>");
125	html("<th class='left'>Name</th>");
126	html("<th class='right'>Size</th>");
127	html("<th/>");
128	html("</tr>\n");
129	header = 1;
130}
131
132static void ls_tail()
133{
134	if (!header)
135		return;
136	html("</table>\n");
137	header = 0;
138}
139
140static void ls_tree(const unsigned char *sha1, char *path)
141{
142	struct tree *tree;
143
144	tree = parse_tree_indirect(sha1);
145	if (!tree) {
146		cgit_print_error(fmt("Not a tree object: %s",
147				     sha1_to_hex(sha1)));
148		return;
149	}
150
151	ls_head();
152	read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
153	ls_tail();
154}
155
156
157static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
158		     const char *pathname, unsigned mode, int stage,
159		     void *cbdata)
160{
161	static int state;
162	static char buffer[PATH_MAX];
163	char *url;
164
165	if (state == 0) {
166		memcpy(buffer, base, baselen);
167		strcpy(buffer+baselen, pathname);
168		url = cgit_pageurl(ctx.qry.repo, "tree",
169				   fmt("h=%s&amp;path=%s", curr_rev, buffer));
170		html("/");
171		cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
172			       curr_rev, buffer);
173
174		if (strcmp(match_path, buffer))
175			return READ_TREE_RECURSIVE;
176
177		if (S_ISDIR(mode)) {
178			state = 1;
179			ls_head();
180			return READ_TREE_RECURSIVE;
181		} else {
182			print_object(sha1, buffer);
183			return 0;
184		}
185	}
186	ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
187	return 0;
188}
189
190
191/*
192 * Show a tree or a blob
193 *   rev:  the commit pointing at the root tree object
194 *   path: path to tree or blob
195 */
196void cgit_print_tree(const char *rev, char *path)
197{
198	unsigned char sha1[20];
199	struct commit *commit;
200	const char *paths[] = {path, NULL};
201
202	if (!rev)
203		rev = ctx.qry.head;
204
205	curr_rev = xstrdup(rev);
206	if (get_sha1(rev, sha1)) {
207		cgit_print_error(fmt("Invalid revision name: %s", rev));
208		return;
209	}
210	commit = lookup_commit_reference(sha1);
211	if (!commit || parse_commit(commit)) {
212		cgit_print_error(fmt("Invalid commit reference: %s", rev));
213		return;
214	}
215
216	html("path: <a href='");
217	html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
218	html("'>root</a>");
219
220	if (path == NULL) {
221		ls_tree(commit->tree->object.sha1, NULL);
222		return;
223	}
224
225	match_path = path;
226	read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
227	ls_tail();
228}