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#include "ui-shared.h"
 12
 13char *curr_rev;
 14char *match_path;
 15int header = 0;
 16
 17static void print_object(const unsigned char *sha1, char *path)
 18{
 19	enum object_type type;
 20	char *buf;
 21	unsigned long size, lineno, start, idx;
 22	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'>";
 23
 24	type = sha1_object_info(sha1, &size);
 25	if (type == OBJ_BAD) {
 26		cgit_print_error(fmt("Bad object name: %s",
 27				     sha1_to_hex(sha1)));
 28		return;
 29	}
 30
 31	buf = read_sha1_file(sha1, &type, &size);
 32	if (!buf) {
 33		cgit_print_error(fmt("Error reading object %s",
 34				     sha1_to_hex(sha1)));
 35		return;
 36	}
 37
 38	html(" (");
 39	cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
 40		        curr_rev, path);
 41	htmlf(")<br/>blob: %s", sha1_to_hex(sha1));
 42
 43	html("<table summary='blob content' class='blob'>\n");
 44	idx = 0;
 45	start = 0;
 46	lineno = 0;
 47	while(idx < size) {
 48		if (buf[idx] == '\n') {
 49			buf[idx] = '\0';
 50			htmlf(linefmt, ++lineno);
 51			html_txt(buf + start);
 52			html("</td></tr>\n");
 53			start = idx + 1;
 54		}
 55		idx++;
 56	}
 57	htmlf(linefmt, ++lineno);
 58	html_txt(buf + start);
 59	html("</td></tr>\n");
 60	html("</table>\n");
 61}
 62
 63
 64static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 65		   const char *pathname, unsigned int mode, int stage,
 66		   void *cbdata)
 67{
 68	char *name;
 69	char *fullpath;
 70	enum object_type type;
 71	unsigned long size = 0;
 72
 73	name = xstrdup(pathname);
 74	fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
 75		       ctx.qry.path ? "/" : "", name);
 76
 77	if (!S_ISGITLINK(mode)) {
 78		type = sha1_object_info(sha1, &size);
 79		if (type == OBJ_BAD) {
 80			htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 81			      name,
 82			      sha1_to_hex(sha1));
 83			return 0;
 84		}
 85	}
 86
 87	html("<tr><td class='ls-mode'>");
 88	cgit_print_filemode(mode);
 89	html("</td><td>");
 90	if (S_ISGITLINK(mode)) {
 91		htmlf("<a class='ls-mod' href='");
 92		html_attr(fmt(ctx.repo->module_link,
 93			      name,
 94			      sha1_to_hex(sha1)));
 95		html("'>");
 96		html_txt(name);
 97		html("</a>");
 98	} else if (S_ISDIR(mode)) {
 99		cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
100			       curr_rev, fullpath);
101	} else {
102		cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
103			       curr_rev, fullpath);
104	}
105	htmlf("</td><td class='ls-size'>%li</td>", size);
106
107	html("<td>");
108	cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
109		      fullpath, 0, NULL, NULL);
110	html("</td></tr>\n");
111	free(name);
112	return 0;
113}
114
115static void ls_head()
116{
117	html("<table summary='tree listing' class='list'>\n");
118	html("<tr class='nohover'>");
119	html("<th class='left'>Mode</th>");
120	html("<th class='left'>Name</th>");
121	html("<th class='right'>Size</th>");
122	html("<th/>");
123	html("</tr>\n");
124	header = 1;
125}
126
127static void ls_tail()
128{
129	if (!header)
130		return;
131	html("</table>\n");
132	header = 0;
133}
134
135static void ls_tree(const unsigned char *sha1, char *path)
136{
137	struct tree *tree;
138
139	tree = parse_tree_indirect(sha1);
140	if (!tree) {
141		cgit_print_error(fmt("Not a tree object: %s",
142				     sha1_to_hex(sha1)));
143		return;
144	}
145
146	ls_head();
147	read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
148	ls_tail();
149}
150
151
152static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
153		     const char *pathname, unsigned mode, int stage,
154		     void *cbdata)
155{
156	static int state;
157	static char buffer[PATH_MAX];
158	char *url;
159
160	if (state == 0) {
161		memcpy(buffer, base, baselen);
162		strcpy(buffer+baselen, pathname);
163		url = cgit_pageurl(ctx.qry.repo, "tree",
164				   fmt("h=%s&amp;path=%s", curr_rev, buffer));
165		html("/");
166		cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
167			       curr_rev, buffer);
168
169		if (strcmp(match_path, buffer))
170			return READ_TREE_RECURSIVE;
171
172		if (S_ISDIR(mode)) {
173			state = 1;
174			ls_head();
175			return READ_TREE_RECURSIVE;
176		} else {
177			print_object(sha1, buffer);
178			return 0;
179		}
180	}
181	ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
182	return 0;
183}
184
185
186/*
187 * Show a tree or a blob
188 *   rev:  the commit pointing at the root tree object
189 *   path: path to tree or blob
190 */
191void cgit_print_tree(const char *rev, char *path)
192{
193	unsigned char sha1[20];
194	struct commit *commit;
195	const char *paths[] = {path, NULL};
196
197	if (!rev)
198		rev = ctx.qry.head;
199
200	curr_rev = xstrdup(rev);
201	if (get_sha1(rev, sha1)) {
202		cgit_print_error(fmt("Invalid revision name: %s", rev));
203		return;
204	}
205	commit = lookup_commit_reference(sha1);
206	if (!commit || parse_commit(commit)) {
207		cgit_print_error(fmt("Invalid commit reference: %s", rev));
208		return;
209	}
210
211	html("path: <a href='");
212	html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
213	html("'>root</a>");
214
215	if (path == NULL) {
216		ls_tree(commit->tree->object.sha1, NULL);
217		return;
218	}
219
220	match_path = path;
221	read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
222	ls_tail();
223}