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