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	enum object_type type;
 59	unsigned long size = 0;
 60	char *url, *qry;
 61
 62	name = xstrdup(pathname);
 63	type = sha1_object_info(sha1, &size);
 64	if (type == OBJ_BAD && !S_ISDIRLNK(mode)) {
 65		htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 66		      name,
 67		      sha1_to_hex(sha1));
 68		return 0;
 69	}
 70	qry = fmt("h=%s&amp;path=%s%s%s", curr_rev,
 71		  cgit_query_path ? cgit_query_path : "",
 72		  cgit_query_path ? "/" : "", pathname);
 73	url = cgit_pageurl(cgit_query_repo, "tree", qry);
 74	html("<tr><td class='filemode'>");
 75	html_filemode(mode);
 76	html("</td><td ");
 77	if (S_ISDIRLNK(mode)) {
 78		htmlf("class='ls-mod'><a href='");
 79		html_attr(fmt(cgit_repo->module_link,
 80			      name,
 81			      sha1_to_hex(sha1)));
 82	} else if (S_ISDIR(mode)) {
 83		html("class='ls-dir'><a href='");
 84		html_attr(url);
 85	} else {
 86		html("class='ls-blob'><a href='");
 87		html_attr(url);
 88	}
 89	htmlf("'>%s</a></td>", name);
 90	htmlf("<td class='filesize'>%li</td>", size);
 91
 92	html("<td class='links'><a href='");
 93	qry = fmt("h=%s&amp;path=%s%s%s", curr_rev,
 94		  cgit_query_path ? cgit_query_path : "",
 95		  cgit_query_path ? "/" : "", pathname);
 96	url = cgit_pageurl(cgit_query_repo, "log", qry);
 97	html_attr(url);
 98	html("' class='button'>H</a></td>");
 99	html("</tr>\n");
100	free(name);
101	return 0;
102}
103
104static void ls_head()
105{
106	html("<table class='list'>\n");
107	html("<tr class='nohover'>");
108	html("<th class='left'>Mode</th>");
109	html("<th class='left'>Name</th>");
110	html("<th class='right'>Size</th>");
111	html("<th/>");
112	html("</tr>\n");
113	header = 1;
114}
115
116static void ls_tail()
117{
118	if (!header)
119		return;
120	html("</table>\n");
121	header = 0;
122}
123
124static void ls_tree(const unsigned char *sha1, char *path)
125{
126	struct tree *tree;
127
128	tree = parse_tree_indirect(sha1);
129	if (!tree) {
130		cgit_print_error(fmt("Not a tree object: %s",
131				     sha1_to_hex(sha1)));
132		return;
133	}
134
135	ls_head();
136	read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
137	ls_tail();
138}
139
140
141static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
142		     const char *pathname, unsigned mode, int stage)
143{
144	static int state;
145	static char buffer[PATH_MAX];
146	char *url;
147
148	if (state == 0) {
149		memcpy(buffer, base, baselen);
150		strcpy(buffer+baselen, pathname);
151		url = cgit_pageurl(cgit_query_repo, "tree",
152				   fmt("h=%s&amp;path=%s", curr_rev, buffer));
153		htmlf(" / <a href='");
154		html_attr(url);
155		html("'>");
156		html_txt(xstrdup(pathname));
157		html("</a>");
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}