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