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
 12char *curr_rev;
 13char *match_path;
 14int header = 0;
 15
 16static void print_object(const unsigned char *sha1, char *path)
 17{
 18	enum object_type type;
 19	char *buf;
 20	unsigned long size, lineno, start, idx;
 21	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'>";
 22
 23	type = sha1_object_info(sha1, &size);
 24	if (type == OBJ_BAD) {
 25		cgit_print_error(fmt("Bad object name: %s",
 26				     sha1_to_hex(sha1)));
 27		return;
 28	}
 29
 30	buf = read_sha1_file(sha1, &type, &size);
 31	if (!buf) {
 32		cgit_print_error(fmt("Error reading object %s",
 33				     sha1_to_hex(sha1)));
 34		return;
 35	}
 36
 37	html(" blob: <a href='");
 38	html_attr(cgit_pageurl(ctx.qry.repo, "blob", fmt("id=%s", sha1_to_hex(sha1))));
 39	htmlf("'>%s</a>",sha1_to_hex(sha1));
 40
 41	html("<table summary='blob content' class='blob'>\n");
 42	idx = 0;
 43	start = 0;
 44	lineno = 0;
 45	while(idx < size) {
 46		if (buf[idx] == '\n') {
 47			buf[idx] = '\0';
 48			htmlf(linefmt, ++lineno);
 49			html_txt(buf + start);
 50			html("</td></tr>\n");
 51			start = idx + 1;
 52		}
 53		idx++;
 54	}
 55	htmlf(linefmt, ++lineno);
 56	html_txt(buf + start);
 57	html("</td></tr>\n");
 58	html("</table>\n");
 59}
 60
 61
 62static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 63		   const char *pathname, unsigned int mode, int stage)
 64{
 65	char *name;
 66	char *fullpath;
 67	enum object_type type;
 68	unsigned long size = 0;
 69
 70	name = xstrdup(pathname);
 71	fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
 72		       ctx.qry.path ? "/" : "", name);
 73
 74	type = sha1_object_info(sha1, &size);
 75	if (type == OBJ_BAD && !S_ISGITLINK(mode)) {
 76		htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 77		      name,
 78		      sha1_to_hex(sha1));
 79		return 0;
 80	}
 81
 82	html("<tr><td class='ls-mode'>");
 83	cgit_print_filemode(mode);
 84	html("</td><td>");
 85	if (S_ISGITLINK(mode)) {
 86		htmlf("<a class='ls-mod' href='");
 87		html_attr(fmt(ctx.repo->module_link,
 88			      name,
 89			      sha1_to_hex(sha1)));
 90		html("'>");
 91		html_txt(name);
 92		html("</a>");
 93	} else if (S_ISDIR(mode)) {
 94		cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 95			       curr_rev, fullpath);
 96	} else {
 97		cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
 98			       curr_rev, fullpath);
 99	}
100	htmlf("</td><td class='ls-size'>%li</td>", size);
101
102	html("<td>");
103	cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
104		      fullpath, 0, NULL, NULL);
105	html("</td></tr>\n");
106	free(name);
107	return 0;
108}
109
110static void ls_head()
111{
112	html("<table summary='tree listing' class='list'>\n");
113	html("<tr class='nohover'>");
114	html("<th class='left'>Mode</th>");
115	html("<th class='left'>Name</th>");
116	html("<th class='right'>Size</th>");
117	html("<th/>");
118	html("</tr>\n");
119	header = 1;
120}
121
122static void ls_tail()
123{
124	if (!header)
125		return;
126	html("</table>\n");
127	header = 0;
128}
129
130static void ls_tree(const unsigned char *sha1, char *path)
131{
132	struct tree *tree;
133
134	tree = parse_tree_indirect(sha1);
135	if (!tree) {
136		cgit_print_error(fmt("Not a tree object: %s",
137				     sha1_to_hex(sha1)));
138		return;
139	}
140
141	ls_head();
142	read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
143	ls_tail();
144}
145
146
147static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
148		     const char *pathname, unsigned mode, int stage)
149{
150	static int state;
151	static char buffer[PATH_MAX];
152	char *url;
153
154	if (state == 0) {
155		memcpy(buffer, base, baselen);
156		strcpy(buffer+baselen, pathname);
157		url = cgit_pageurl(ctx.qry.repo, "tree",
158				   fmt("h=%s&amp;path=%s", curr_rev, buffer));
159		html("/");
160		cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
161			       curr_rev, buffer);
162
163		if (strcmp(match_path, buffer))
164			return READ_TREE_RECURSIVE;
165
166		if (S_ISDIR(mode)) {
167			state = 1;
168			ls_head();
169			return READ_TREE_RECURSIVE;
170		} else {
171			print_object(sha1, buffer);
172			return 0;
173		}
174	}
175	ls_item(sha1, base, baselen, pathname, mode, stage);
176	return 0;
177}
178
179
180/*
181 * Show a tree or a blob
182 *   rev:  the commit pointing at the root tree object
183 *   path: path to tree or blob
184 */
185void cgit_print_tree(const char *rev, char *path)
186{
187	unsigned char sha1[20];
188	struct commit *commit;
189	const char *paths[] = {path, NULL};
190
191	if (!rev)
192		rev = ctx.qry.head;
193
194	curr_rev = xstrdup(rev);
195	if (get_sha1(rev, sha1)) {
196		cgit_print_error(fmt("Invalid revision name: %s", rev));
197		return;
198	}
199	commit = lookup_commit_reference(sha1);
200	if (!commit || parse_commit(commit)) {
201		cgit_print_error(fmt("Invalid commit reference: %s", rev));
202		return;
203	}
204
205	html("path: <a href='");
206	html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
207	html("'>root</a>");
208
209	if (path == NULL) {
210		ls_tree(commit->tree->object.sha1, NULL);
211		return;
212	}
213
214	match_path = path;
215	read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
216	ls_tail();
217}