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