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
 11char *curr_rev;
 12char *match_path;
 13int header = 0;
 14
 15static void print_object(const unsigned char *sha1, char *path)
 16{
 17	enum object_type type;
 18	char *buf;
 19	unsigned long size, lineno, start, idx;
 20	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'>";
 21
 22	type = sha1_object_info(sha1, &size);
 23	if (type == OBJ_BAD) {
 24		cgit_print_error(fmt("Bad object name: %s",
 25				     sha1_to_hex(sha1)));
 26		return;
 27	}
 28
 29	buf = read_sha1_file(sha1, &type, &size);
 30	if (!buf) {
 31		cgit_print_error(fmt("Error reading object %s",
 32				     sha1_to_hex(sha1)));
 33		return;
 34	}
 35
 36	html(" blob: <a href='");
 37	html_attr(cgit_pageurl(cgit_query_repo, "blob", fmt("id=%s", sha1_to_hex(sha1))));
 38	htmlf("'>%s</a>",sha1_to_hex(sha1));
 39
 40	html("<table summary='blob content' class='blob'>\n");
 41	idx = 0;
 42	start = 0;
 43	lineno = 0;
 44	while(idx < size) {
 45		if (buf[idx] == '\n') {
 46			buf[idx] = '\0';
 47			htmlf(linefmt, ++lineno);
 48			html_txt(buf + start);
 49			html("</td></tr>\n");
 50			start = idx + 1;
 51		}
 52		idx++;
 53	}
 54	htmlf(linefmt, ++lineno);
 55	html_txt(buf + start);
 56	html("</td></tr>\n");
 57	html("</table>\n");
 58}
 59
 60
 61static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 62		   const char *pathname, unsigned int mode, int stage)
 63{
 64	char *name;
 65	char *fullpath;
 66	enum object_type type;
 67	unsigned long size = 0;
 68
 69	name = xstrdup(pathname);
 70	fullpath = fmt("%s%s%s", cgit_query_path ? cgit_query_path : "",
 71		       cgit_query_path ? "/" : "", name);
 72
 73	type = sha1_object_info(sha1, &size);
 74	if (type == OBJ_BAD && !S_ISGITLINK(mode)) {
 75		htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 76		      name,
 77		      sha1_to_hex(sha1));
 78		return 0;
 79	}
 80
 81	html("<tr><td class='ls-mode'>");
 82	html_filemode(mode);
 83	html("</td><td>");
 84	if (S_ISGITLINK(mode)) {
 85		htmlf("<a class='ls-mod' href='");
 86		html_attr(fmt(cgit_repo->module_link,
 87			      name,
 88			      sha1_to_hex(sha1)));
 89		html("'>");
 90		html_txt(name);
 91		html("</a>");
 92	} else if (S_ISDIR(mode)) {
 93		cgit_tree_link(name, NULL, "ls-dir", cgit_query_head,
 94			       curr_rev, fullpath);
 95	} else {
 96		cgit_tree_link(name, NULL, "ls-blob", cgit_query_head,
 97			       curr_rev, fullpath);
 98	}
 99	htmlf("</td><td class='ls-size'>%li</td>", size);
100
101	html("<td>");
102	cgit_log_link("log", NULL, "button", cgit_query_head, curr_rev,
103		      fullpath, 0, NULL, NULL);
104	html("</td></tr>\n");
105	free(name);
106	return 0;
107}
108
109static void ls_head()
110{
111	html("<table summary='tree listing' class='list'>\n");
112	html("<tr class='nohover'>");
113	html("<th class='left'>Mode</th>");
114	html("<th class='left'>Name</th>");
115	html("<th class='right'>Size</th>");
116	html("<th/>");
117	html("</tr>\n");
118	header = 1;
119}
120
121static void ls_tail()
122{
123	if (!header)
124		return;
125	html("</table>\n");
126	header = 0;
127}
128
129static void ls_tree(const unsigned char *sha1, char *path)
130{
131	struct tree *tree;
132
133	tree = parse_tree_indirect(sha1);
134	if (!tree) {
135		cgit_print_error(fmt("Not a tree object: %s",
136				     sha1_to_hex(sha1)));
137		return;
138	}
139
140	ls_head();
141	read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
142	ls_tail();
143}
144
145
146static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
147		     const char *pathname, unsigned mode, int stage)
148{
149	static int state;
150	static char buffer[PATH_MAX];
151	char *url;
152
153	if (state == 0) {
154		memcpy(buffer, base, baselen);
155		strcpy(buffer+baselen, pathname);
156		url = cgit_pageurl(cgit_query_repo, "tree",
157				   fmt("h=%s&amp;path=%s", curr_rev, buffer));
158		html("/");
159		cgit_tree_link(xstrdup(pathname), NULL, NULL, cgit_query_head,
160			       curr_rev, buffer);
161
162		if (strcmp(match_path, buffer))
163			return READ_TREE_RECURSIVE;
164
165		if (S_ISDIR(mode)) {
166			state = 1;
167			ls_head();
168			return READ_TREE_RECURSIVE;
169		} else {
170			print_object(sha1, buffer);
171			return 0;
172		}
173	}
174	ls_item(sha1, base, baselen, pathname, mode, stage);
175	return 0;
176}
177
178
179/*
180 * Show a tree or a blob
181 *   rev:  the commit pointing at the root tree object
182 *   path: path to tree or blob
183 */
184void cgit_print_tree(const char *rev, char *path)
185{
186	unsigned char sha1[20];
187	struct commit *commit;
188	const char *paths[] = {path, NULL};
189
190	if (!rev)
191		rev = cgit_query_head;
192
193	curr_rev = xstrdup(rev);
194	if (get_sha1(rev, sha1)) {
195		cgit_print_error(fmt("Invalid revision name: %s", rev));
196		return;
197	}
198	commit = lookup_commit_reference(sha1);
199	if (!commit || parse_commit(commit)) {
200		cgit_print_error(fmt("Invalid commit reference: %s", rev));
201		return;
202	}
203
204	html("path: <a href='");
205	html_attr(cgit_pageurl(cgit_query_repo, "tree", fmt("h=%s", rev)));
206	html("'>root</a>");
207
208	if (path == NULL) {
209		ls_tree(commit->tree->object.sha1, NULL);
210		return;
211	}
212
213	match_path = path;
214	read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
215	ls_tail();
216}