/* ui-tree.c: functions for tree output
*
* Copyright (C) 2006 Lars Hjemli
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include <ctype.h>
#include "cgit.h"
#include "html.h"
#include "ui-shared.h"
struct walk_tree_context {
char *curr_rev;
char *match_path;
int state;
};
static void print_text_buffer(const char *name, char *buf, unsigned long size)
{
unsigned long lineno, idx;
const char *numberfmt =
"<a class='no' id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a>\n";
html("<table summary='blob content' class='blob'>\n");
if (ctx.cfg.enable_tree_linenumbers) {
html("<tr><td class='linenumbers'><pre>");
idx = 0;
lineno = 0;
if (size) {
htmlf(numberfmt, ++lineno);
while (idx < size - 1) { // skip absolute last newline
if (buf[idx] == '\n')
htmlf(numberfmt, ++lineno);
idx++;
}
}
html("</pre></td>\n");
}
else {
html("<tr>\n");
}
if (ctx.repo->source_filter) {
html("<td class='lines'><pre><code>");
ctx.repo->source_filter->argv[1] = xstrdup(name);
cgit_open_filter(ctx.repo->source_filter);
html_raw(buf, size);
cgit_close_filter(ctx.repo->source_filter);
free(ctx.repo->source_filter->argv[1]);
ctx.repo->source_filter->argv[1] = NULL;
html("</code></pre></td></tr></table>\n");
return;
}
html("<td class='lines'><pre><code>");
html_txt(buf);
html("</code></pre></td></tr></table>\n");
}
#define ROWLEN 32
static void print_binary_buffer(char *buf, unsigned long size)
{
unsigned long ofs, idx;
static char ascii[ROWLEN + 1];
html("<table summary='blob content' class='bin-blob'>\n");
html("<tr><th>ofs</th><th>hex dump</th><th>ascii</th></tr>");
for (ofs = 0; ofs < size; ofs += ROWLEN, buf += ROWLEN) {
htmlf("<tr><td class='right'>%04lx</td><td class='hex'>", ofs);
for (idx = 0; idx < ROWLEN && ofs + idx < size; idx++)
htmlf("%*s%02x",
idx == 16 ? 4 : 1, "",
buf[idx] & 0xff);
html(" </td><td class='hex'>");
for (idx = 0; idx < ROWLEN && ofs + idx < size; idx++)
ascii[idx] = isgraph(buf[idx]) ? buf[idx] : '.';
ascii[idx] = '\0';
html_txt(ascii);
html("</td></tr>\n");
}
html("</table>\n");
}
static void print_object(const unsigned char *sha1, char *path, const char *basename, const char *rev)
{
enum object_type type;
char *buf;
unsigned long size;
type = sha1_object_info(sha1, &size);
if (type == OBJ_BAD) {
cgit_print_error(fmt("Bad object name: %s",
sha1_to_hex(sha1)));
return;
}
buf = read_sha1_file(sha1, &type, &size);
if (!buf) {
cgit_print_error(fmt("Error reading object %s",
sha1_to_hex(sha1)));
return;
}
htmlf("blob: %s (", sha1_to_hex(sha1));
cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
rev, path);
html(")\n");
if (ctx.cfg.max_blob_size && size / 1024 > ctx.cfg.max_blob_size) {
htmlf("<div class='error'>blob size (%ldKB) exceeds display size limit (%dKB).</div>",
size / 1024, ctx.cfg.max_blob_size);
return;
}
if (buffer_is_binary(buf, size))
print_binary_buffer(buf, size);
else
print_text_buffer(basename, buf, size);
}
static int ls_item(const unsigned char *sha1, const char *base, int baselen,
const char *pathname, unsigned int mode, int stage,
void *cbdata)
{
struct walk_tree_context *walk_tree_ctx = cbdata;
char *name;
char *fullpath;
char *class;
enum object_type type;
unsigned long size = 0;
name = xstrdup(pathname);
fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
ctx.qry.path ? "/" : "", name);
if (!S_ISGITLINK(mode)) {
type = sha1_object_info(sha1, &size);
if (type == OBJ_BAD) {
htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
name,
sha1_to_hex(sha1));
return 0;
}
}
html("<tr><td class='ls-mode'>");
cgit_print_filemode(mode);
html("</td><td>");
if (S_ISGITLINK(mode)) {
cgit_submodule_link("ls-mod", fullpath, sha1_to_hex(sha1));
} else if (S_ISDIR(mode)) {
cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
walk_tree_ctx->curr_rev, fullpath);
} else {
class = strrchr(name, '.');
if (class != NULL) {
class = fmt("ls-blob %s", class + 1);
} else
class = "ls-blob";
cgit_tree_link(name, NULL, class, ctx.qry.head,
walk_tree_ctx->curr_rev, fullpath);
}
htmlf("</td><td class='ls-size'>%li</td>", size);
html("<td>");
cgit_log_link("log", NULL, "button", ctx.qry.head,
walk_tree_ctx->curr_rev, fullpath, 0, NULL, NULL,
ctx.qry.showmsg);
if (ctx.repo->max_stats)
cgit_stats_link("stats", NULL, "button", ctx.qry.head,
fullpath);
if (!S_ISGITLINK(mode))
cgit_plain_link("plain", NULL, "button", ctx.qry.head,
walk_tree_ctx->curr_rev, fullpath);
html("</td></tr>\n");
free(name);
return 0;
}
static void ls_head()
{
html("<table summary='tree listing' class='list'>\n");
html("<tr class='nohover'>");
html("<th class='left'>Mode</th>");
html("<th class='left'>Name</th>");
html("<th class='right'>Size</th>");
html("<th/>");
html("</tr>\n");
}
static void ls_tail()
{
html("</table>\n");
}
static void ls_tree(const unsigned char *sha1, char *path, struct walk_tree_context *walk_tree_ctx)
{
struct tree *tree;
struct pathspec paths = {
.nr = 0
};
tree = parse_tree_indirect(sha1);
if (!tree) {
cgit_print_error(fmt("Not a tree object: %s",
sha1_to_hex(sha1)));
return;
}
ls_head();
read_tree_recursive(tree, "", 0, 1, &paths, ls_item, walk_tree_ctx);
ls_tail();
}
static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
const char *pathname, unsigned mode, int stage,
void *cbdata)
{
struct walk_tree_context *walk_tree_ctx = cbdata;
static char buffer[PATH_MAX];
if (walk_tree_ctx->state == 0) {
memcpy(buffer, base, baselen);
strcpy(buffer + baselen, pathname);
if (strcmp(walk_tree_ctx->match_path, buffer))
return READ_TREE_RECURSIVE;
if (S_ISDIR(mode)) {
walk_tree_ctx->state = 1;
ls_head();
return READ_TREE_RECURSIVE;
} else {
print_object(sha1, buffer, pathname, walk_tree_ctx->curr_rev);
return 0;
}
}
ls_item(sha1, base, baselen, pathname, mode, stage, walk_tree_ctx);
return 0;
}
/*
* Show a tree or a blob
* rev: the commit pointing at the root tree object
* path: path to tree or blob
*/
void cgit_print_tree(const char *rev, char *path)
{
unsigned char sha1[20];
struct commit *commit;
struct pathspec_item path_items = {
.match = path,
.len = path ? strlen(path) : 0
};
struct pathspec paths = {
.nr = path ? 1 : 0,
.items = &path_items
};
struct walk_tree_context walk_tree_ctx = {
.match_path = path,
.state = 0
};
if (!rev)
rev = ctx.qry.head;
walk_tree_ctx.curr_rev = xstrdup(rev);
if (get_sha1(rev, sha1)) {
cgit_print_error(fmt("Invalid revision name: %s", rev));
return;
}
commit = lookup_commit_reference(sha1);
if (!commit || parse_commit(commit)) {
cgit_print_error(fmt("Invalid commit reference: %s", rev));
return;
}
if (path == NULL) {
ls_tree(commit->tree->object.sha1, NULL, &walk_tree_ctx);
return;
}
read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
if (walk_tree_ctx.state == 1)
ls_tail();
}
