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