/* scan-tree.c
*
* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
#include "scan-tree.h"
#include "configfile.h"
#include "html.h"
/* return 1 if path contains a objects/ directory and a HEAD file */
static int is_git_dir(const char *path)
{
struct stat st;
struct strbuf pathbuf = STRBUF_INIT;
int result = 0;
strbuf_addf(&pathbuf, "%s/objects", path);
if (stat(pathbuf.buf, &st)) {
if (errno != ENOENT)
fprintf(stderr, "Error checking path %s: %s (%d)\n",
path, strerror(errno), errno);
goto out;
}
if (!S_ISDIR(st.st_mode))
goto out;
strbuf_reset(&pathbuf);
strbuf_addf(&pathbuf, "%s/HEAD", path);
if (stat(pathbuf.buf, &st)) {
if (errno != ENOENT)
fprintf(stderr, "Error checking path %s: %s (%d)\n",
path, strerror(errno), errno);
goto out;
}
if (!S_ISREG(st.st_mode))
goto out;
result = 1;
out:
strbuf_release(&pathbuf);
return result;
}
static struct cgit_repo *repo;
static repo_config_fn config_fn;
static void repo_config(const char *name, const char *value)
{
config_fn(repo, name, value);
}
static int gitconfig_config(const char *key, const char *value, void *cb)
{
if (!strcmp(key, "gitweb.owner"))
config_fn(repo, "owner", value);
else if (!strcmp(key, "gitweb.description"))
config_fn(repo, "desc", value);
else if (!strcmp(key, "gitweb.category"))
config_fn(repo, "section", value);
else if (!strcmp(key, "gitweb.homepage"))
config_fn(repo, "homepage", value);
else if (starts_with(key, "cgit."))
config_fn(repo, key + 5, value);
return 0;
}
static char *xstrrchr(char *s, char *from, int c)
{
while (from >= s && *from != c)
from--;
return from < s ? NULL : from;
}
static void add_repo(const char *base, struct strbuf *path, repo_config_fn fn)
{
struct stat st;
struct passwd *pwd;
size_t pathlen;
struct strbuf rel = STRBUF_INIT;
char *p, *slash;
int n;
size_t size;
if (stat(path->buf, &st)) {
fprintf(stderr, "Error accessing %s: %s (%d)\n",
path->buf, strerror(errno), errno);
return;
}
strbuf_addch(path, '/');
pathlen = path->len;
if (ctx.cfg.strict_export) {
strbuf_addstr(path, ctx.cfg.strict_export);
if(stat(path->buf, &st))
return;
strbuf_setlen(path, pathlen);
}
strbuf_addstr(path, "noweb");
if (!stat(path->buf, &st))
return;
strbuf_setlen(path, pathlen);
if (!starts_with(path->buf, base))
strbuf_addbuf(&rel, path);
else
strbuf_addstr(&rel, path->buf + strlen(base) + 1);
if (!strcmp(rel.buf + rel.len - 5, "/.git"))
strbuf_setlen(&rel, rel.len - 5);
else if (rel.len && rel.buf[rel.len - 1] == '/')
strbuf_setlen(&rel, rel.len - 1);
repo = cgit_add_repo(rel.buf);
config_fn = fn;
if (ctx.cfg.enable_git_config) {
strbuf_addstr(path, "config");
git_config_from_file(gitconfig_config, path->buf, NULL);
strbuf_setlen(path, pathlen);
}
if (ctx.cfg.remove_suffix) {
size_t urllen;
strip_suffix(repo->url, ".git", &urllen);
strip_suffix_mem(repo->url, &urllen, "/");
repo->url[urllen] = '\0';
}
repo->path = xstrdup(path->buf);
while (!repo->owner) {
if ((pwd = getpwuid(st.st_uid)) == NULL) {
fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
path->buf, strerror(errno), errno);
break;
}
if (pwd->pw_gecos)
if ((p = strchr(pwd->pw_gecos, ',')))
*p = '\0';
repo->owner = xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name);
}
if (repo->desc == cgit_default_repo_desc || !repo->desc) {
strbuf_addstr(path, "description");
if (!stat(path->buf, &st))
readfile(path->buf, &repo->desc, &size);
strbuf_setlen(path, pathlen);
}
if (ctx.cfg.section_from_path) {
n = ctx.cfg.section_from_path;
if (n > 0) {
slash = rel.buf - 1;
while (slash && n && (slash = strchr(slash + 1, '/')))
n--;
} else {
slash = rel.buf + rel.len;
while (slash && n && (slash = xstrrchr(rel.buf, slash - 1, '/')))
n++;
}
if (slash && !n) {
*slash = '\0';
repo->section = xstrdup(rel.buf);
*slash = '/';
if (starts_with(repo->name, repo->section)) {
repo->name += strlen(repo->section);
if (*repo->name == '/')
repo->name++;
}
}
}
strbuf_addstr(path, "cgitrc");
if (!stat(path->buf, &st))
parse_configfile(path->buf, &repo_config);
strbuf_release(&rel);
}
static void scan_path(const char *base, const char *path, repo_config_fn fn)
{
DIR *dir = opendir(path);
struct dirent *ent;
struct strbuf pathbuf = STRBUF_INIT;
size_t pathlen = strlen(path);
struct stat st;
if (!dir) {
fprintf(stderr, "Error opening directory %s: %s (%d)\n",
path, strerror(errno), errno);
return;
}
strbuf_add(&pathbuf, path, strlen(path));
if (is_git_dir(pathbuf.buf)) {
add_repo(base, &pathbuf, fn);
goto end;
}
strbuf_addstr(&pathbuf, "/.git");
if (is_git_dir(pathbuf.buf)) {
add_repo(base, &pathbuf, fn);
goto end;
}
/*
* Add one because we don't want to lose the trailing '/' when we
* reset the length of pathbuf in the loop below.
*/
pathlen++;
while ((ent = readdir(dir)) != NULL) {
if (ent->d_name[0] == '.') {
if (ent->d_name[1] == '\0')
continue;
if (ent->d_name[1] == '.' && ent->d_name[2] == '\0')
continue;
if (!ctx.cfg.scan_hidden_path)
continue;
}
strbuf_setlen(&pathbuf, pathlen);
strbuf_addstr(&pathbuf, ent->d_name);
if (stat(pathbuf.buf, &st)) {
fprintf(stderr, "Error checking path %s: %s (%d)\n",
pathbuf.buf, strerror(errno), errno);
continue;
}
if (S_ISDIR(st.st_mode))
scan_path(base, pathbuf.buf, fn);
}
end:
strbuf_release(&pathbuf);
closedir(dir);
}
void scan_projects(const char *path, const char *projectsfile, repo_config_fn fn)
{
struct strbuf line = STRBUF_INIT;
FILE *projects;
int err;
projects = fopen(projectsfile, "r");
if (!projects) {
fprintf(stderr, "Error opening projectsfile %s: %s (%d)\n",
projectsfile, strerror(errno), errno);
return;
}
while (strbuf_getline(&line, projects) != EOF) {
if (!line.len)
continue;
strbuf_insert(&line, 0, "/", 1);
strbuf_insert(&line, 0, path, strlen(path));
scan_path(path, line.buf, fn);
}
if ((err = ferror(projects))) {
fprintf(stderr, "Error reading from projectsfile %s: %s (%d)\n",
projectsfile, strerror(err), err);
}
fclose(projects);
strbuf_release(&line);
}
void scan_tree(const char *path, repo_config_fn fn)
{
scan_path(path, path, fn);
}
