/* 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"#include <config.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 void scan_tree_repo_config(const char *name, const char *value){	cgit_repo_config(repo, name, value);} static int gitconfig_config(const char *key, const char *value,		const __attribute__((unused)) struct config_context *ctx, void *cb){	const char *name; 	if (!strcmp(key, "gitweb.owner"))		cgit_repo_config(repo, "owner", value);	else if (!strcmp(key, "gitweb.description"))		cgit_repo_config(repo, "desc", value);	else if (!strcmp(key, "gitweb.category"))		cgit_repo_config(repo, "section", value);	else if (!strcmp(key, "gitweb.homepage"))		cgit_repo_config(repo, "homepage", value);	else if (skip_prefix(key, "cgit.", &name))		cgit_repo_config(repo, name, 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){	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);	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 = strdup_first_line(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 = strdup_first_line(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))			read_first_line(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 = strdup_first_line(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, &scan_tree_repo_config); 	strbuf_release(&rel);} static void scan_path(const char *base, const char *path){	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);		goto end;	}	strbuf_addstr(&pathbuf, "/.git");	if (is_git_dir(pathbuf.buf)) {		add_repo(base, &pathbuf);		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);	}end:	strbuf_release(&pathbuf);	closedir(dir);} void scan_projects(const char *path, const char *projectsfile){	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);	}	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){	scan_path(path, path);}