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	html("</td></tr>\n");
113	free(name);
114	return 0;
115}
116
117static void ls_head()
118{
119	html("<table summary='tree listing' class='list'>\n");
120	html("<tr class='nohover'>");
121	html("<th class='left'>Mode</th>");
122	html("<th class='left'>Name</th>");
123	html("<th class='right'>Size</th>");
124	html("<th/>");
125	html("</tr>\n");
126	header = 1;
127}
128
129static void ls_tail()
130{
131	if (!header)
132		return;
133	html("</table>\n");
134	header = 0;
135}
136
137static void ls_tree(const unsigned char *sha1, char *path)
138{
139	struct tree *tree;
140
141	tree = parse_tree_indirect(sha1);
142	if (!tree) {
143		cgit_print_error(fmt("Not a tree object: %s",
144				     sha1_to_hex(sha1)));
145		return;
146	}
147
148	ls_head();
149	read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
150	ls_tail();
151}
152
153
154static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
155		     const char *pathname, unsigned mode, int stage,
156		     void *cbdata)
157{
158	static int state;
159	static char buffer[PATH_MAX];
160	char *url;
161
162	if (state == 0) {
163		memcpy(buffer, base, baselen);
164		strcpy(buffer+baselen, pathname);
165		url = cgit_pageurl(ctx.qry.repo, "tree",
166				   fmt("h=%s&amp;path=%s", curr_rev, buffer));
167		html("/");
168		cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
169			       curr_rev, buffer);
170
171		if (strcmp(match_path, buffer))
172			return READ_TREE_RECURSIVE;
173
174		if (S_ISDIR(mode)) {
175			state = 1;
176			ls_head();
177			return READ_TREE_RECURSIVE;
178		} else {
179			print_object(sha1, buffer);
180			return 0;
181		}
182	}
183	ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
184	return 0;
185}
186
187
188/*
189 * Show a tree or a blob
190 *   rev:  the commit pointing at the root tree object
191 *   path: path to tree or blob
192 */
193void cgit_print_tree(const char *rev, char *path)
194{
195	unsigned char sha1[20];
196	struct commit *commit;
197	const char *paths[] = {path, NULL};
198
199	if (!rev)
200		rev = ctx.qry.head;
201
202	curr_rev = xstrdup(rev);
203	if (get_sha1(rev, sha1)) {
204		cgit_print_error(fmt("Invalid revision name: %s", rev));
205		return;
206	}
207	commit = lookup_commit_reference(sha1);
208	if (!commit || parse_commit(commit)) {
209		cgit_print_error(fmt("Invalid commit reference: %s", rev));
210		return;
211	}
212
213	html("path: <a href='");
214	html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
215	html("'>root</a>");
216
217	if (path == NULL) {
218		ls_tree(commit->tree->object.sha1, NULL);
219		return;
220	}
221
222	match_path = path;
223	read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
224	ls_tail();
225}