Merge branch 'wip'

[cgit.git] / cgit.c

diff --git a/cgit.c b/cgit.c
index 5a93fcdc6376a9a1ad7ac1f7090988c624481294..afafccee82f49639e191fd4c0c1a3d9b2aa027ee 100644 (file)
--- a/cgit.c
+++ b/cgit.c
@@ -1,6 +1,7 @@
 /* cgit.c: cgi for the git scm
  *
  * Copyright (C) 2006 Lars Hjemli
 /* cgit.c: cgi for the git scm
  *
  * Copyright (C) 2006 Lars Hjemli

+ * Copyright (C) 2010, 2012 Jason A. Donenfeld <Jason@zx2c4.com>

  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)


@@ -12,13 +13,120 @@
 #include "configfile.h"
 #include "html.h"
 #include "ui-shared.h"
 #include "configfile.h"
 #include "html.h"
 #include "ui-shared.h"

+#include "ui-stats.h"

 #include "scan-tree.h"
 
 const char *cgit_version = CGIT_VERSION;
 
 #include "scan-tree.h"
 
 const char *cgit_version = CGIT_VERSION;
 

-void config_cb(const char *name, const char *value)
+static void add_mimetype(const char *name, const char *value)

 {
 {

-       if (!strcmp(name, "root-title"))
+       struct string_list_item *item;
+
+       item = string_list_insert(&ctx.cfg.mimetypes, xstrdup(name));
+       item->util = xstrdup(value);
+}
+
+static struct cgit_filter *new_filter(const char *cmd, filter_type filtertype)
+{
+       struct cgit_filter *f;
+       int args_size = 0;
+       int extra_args;
+
+       if (!cmd || !cmd[0])
+               return NULL;
+
+       switch (filtertype) {
+               case SOURCE:
+                       extra_args = 1;
+                       break;
+
+               case ABOUT:
+               case COMMIT:
+               default:
+                       extra_args = 0;
+                       break;
+       }
+
+       f = xmalloc(sizeof(struct cgit_filter));
+       f->cmd = xstrdup(cmd);
+       args_size = (2 + extra_args) * sizeof(char *);
+       f->argv = xmalloc(args_size);
+       memset(f->argv, 0, args_size);
+       f->argv[0] = f->cmd;
+       return f;
+}
+
+static void process_cached_repolist(const char *path);
+
+static void repo_config(struct cgit_repo *repo, const char *name, const char *value)
+{
+       struct string_list_item *item;
+
+       if (!strcmp(name, "name"))
+               repo->name = xstrdup(value);
+       else if (!strcmp(name, "clone-url"))
+               repo->clone_url = xstrdup(value);
+       else if (!strcmp(name, "desc"))
+               repo->desc = xstrdup(value);
+       else if (!strcmp(name, "owner"))
+               repo->owner = xstrdup(value);
+       else if (!strcmp(name, "defbranch"))
+               repo->defbranch = xstrdup(value);
+       else if (!strcmp(name, "snapshots"))
+               repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value);
+       else if (!strcmp(name, "enable-commit-graph"))
+               repo->enable_commit_graph = atoi(value);
+       else if (!strcmp(name, "enable-log-filecount"))
+               repo->enable_log_filecount = atoi(value);
+       else if (!strcmp(name, "enable-log-linecount"))
+               repo->enable_log_linecount = atoi(value);
+       else if (!strcmp(name, "enable-remote-branches"))
+               repo->enable_remote_branches = atoi(value);
+       else if (!strcmp(name, "enable-subject-links"))
+               repo->enable_subject_links = atoi(value);
+       else if (!strcmp(name, "commit-sort")) {
+               if (!strcmp(value, "date"))
+                       repo->commit_sort = 1;
+               if (!strcmp(value, "topo"))
+                       repo->commit_sort = 2;
+       } else if (!strcmp(name, "max-stats"))
+               repo->max_stats = cgit_find_stats_period(value, NULL);
+       else if (!strcmp(name, "module-link"))
+               repo->module_link= xstrdup(value);
+       else if (!prefixcmp(name, "module-link.")) {
+               item = string_list_append(&repo->submodules, name + 12);
+               item->util = xstrdup(value);
+       } else if (!strcmp(name, "section"))
+               repo->section = xstrdup(value);
+       else if (!strcmp(name, "readme") && value != NULL)
+               repo->readme = xstrdup(value);
+       else if (!strcmp(name, "logo") && value != NULL)
+               repo->logo = xstrdup(value);
+       else if (!strcmp(name, "logo-link") && value != NULL)
+               repo->logo_link = xstrdup(value);
+       else if (ctx.cfg.enable_filter_overrides) {
+               if (!strcmp(name, "about-filter"))
+                       repo->about_filter = new_filter(value, ABOUT);
+               else if (!strcmp(name, "commit-filter"))
+                       repo->commit_filter = new_filter(value, COMMIT);
+               else if (!strcmp(name, "source-filter"))
+                       repo->source_filter = new_filter(value, SOURCE);
+       }
+}
+
+static void config_cb(const char *name, const char *value)
+{
+       if (!strcmp(name, "section") || !strcmp(name, "repo.group"))
+               ctx.cfg.section = xstrdup(value);
+       else if (!strcmp(name, "repo.url"))
+               ctx.repo = cgit_add_repo(value);
+       else if (ctx.repo && !strcmp(name, "repo.path"))
+               ctx.repo->path = trim_end(value, '/');
+       else if (ctx.repo && !prefixcmp(name, "repo."))
+               repo_config(ctx.repo, name + 5, value);
+       else if (!strcmp(name, "readme"))
+               ctx.cfg.readme = xstrdup(value);
+       else if (!strcmp(name, "root-title"))

                ctx.cfg.root_title = xstrdup(value);
        else if (!strcmp(name, "root-desc"))
                ctx.cfg.root_desc = xstrdup(value);
                ctx.cfg.root_title = xstrdup(value);
        else if (!strcmp(name, "root-desc"))
                ctx.cfg.root_desc = xstrdup(value);


@@ -30,6 +138,10 @@ void config_cb(const char *name, const char *value)
                ctx.cfg.favicon = xstrdup(value);
        else if (!strcmp(name, "footer"))
                ctx.cfg.footer = xstrdup(value);
                ctx.cfg.favicon = xstrdup(value);
        else if (!strcmp(name, "footer"))
                ctx.cfg.footer = xstrdup(value);

+       else if (!strcmp(name, "head-include"))
+               ctx.cfg.head_include = xstrdup(value);
+       else if (!strcmp(name, "header"))
+               ctx.cfg.header = xstrdup(value);

        else if (!strcmp(name, "logo"))
                ctx.cfg.logo = xstrdup(value);
        else if (!strcmp(name, "index-header"))
        else if (!strcmp(name, "logo"))
                ctx.cfg.logo = xstrdup(value);
        else if (!strcmp(name, "index-header"))


@@ -40,97 +152,146 @@ void config_cb(const char *name, const char *value)
                ctx.cfg.logo_link = xstrdup(value);
        else if (!strcmp(name, "module-link"))
                ctx.cfg.module_link = xstrdup(value);
                ctx.cfg.logo_link = xstrdup(value);
        else if (!strcmp(name, "module-link"))
                ctx.cfg.module_link = xstrdup(value);

+       else if (!strcmp(name, "strict-export"))
+               ctx.cfg.strict_export = xstrdup(value);

        else if (!strcmp(name, "virtual-root")) {
                ctx.cfg.virtual_root = trim_end(value, '/');
                if (!ctx.cfg.virtual_root && (!strcmp(value, "/")))
                        ctx.cfg.virtual_root = "";
        } else if (!strcmp(name, "nocache"))
                ctx.cfg.nocache = atoi(value);
        else if (!strcmp(name, "virtual-root")) {
                ctx.cfg.virtual_root = trim_end(value, '/');
                if (!ctx.cfg.virtual_root && (!strcmp(value, "/")))
                        ctx.cfg.virtual_root = "";
        } else if (!strcmp(name, "nocache"))
                ctx.cfg.nocache = atoi(value);

+       else if (!strcmp(name, "noplainemail"))
+               ctx.cfg.noplainemail = atoi(value);
+       else if (!strcmp(name, "noheader"))
+               ctx.cfg.noheader = atoi(value);

        else if (!strcmp(name, "snapshots"))
                ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
        else if (!strcmp(name, "snapshots"))
                ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);

+       else if (!strcmp(name, "enable-filter-overrides"))
+               ctx.cfg.enable_filter_overrides = atoi(value);
+       else if (!strcmp(name, "enable-http-clone"))
+               ctx.cfg.enable_http_clone = atoi(value);

        else if (!strcmp(name, "enable-index-links"))
                ctx.cfg.enable_index_links = atoi(value);
        else if (!strcmp(name, "enable-index-links"))
                ctx.cfg.enable_index_links = atoi(value);

+       else if (!strcmp(name, "enable-index-owner"))
+               ctx.cfg.enable_index_owner = atoi(value);
+       else if (!strcmp(name, "enable-commit-graph"))
+               ctx.cfg.enable_commit_graph = atoi(value);

        else if (!strcmp(name, "enable-log-filecount"))
                ctx.cfg.enable_log_filecount = atoi(value);
        else if (!strcmp(name, "enable-log-linecount"))
                ctx.cfg.enable_log_linecount = atoi(value);
        else if (!strcmp(name, "enable-log-filecount"))
                ctx.cfg.enable_log_filecount = atoi(value);
        else if (!strcmp(name, "enable-log-linecount"))
                ctx.cfg.enable_log_linecount = atoi(value);

+       else if (!strcmp(name, "enable-remote-branches"))
+               ctx.cfg.enable_remote_branches = atoi(value);
+       else if (!strcmp(name, "enable-subject-links"))
+               ctx.cfg.enable_subject_links = atoi(value);
+       else if (!strcmp(name, "enable-tree-linenumbers"))
+               ctx.cfg.enable_tree_linenumbers = atoi(value);
+       else if (!strcmp(name, "enable-git-config"))
+               ctx.cfg.enable_git_config = atoi(value);
+       else if (!strcmp(name, "max-stats"))
+               ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);

        else if (!strcmp(name, "cache-size"))
                ctx.cfg.cache_size = atoi(value);
        else if (!strcmp(name, "cache-root"))
        else if (!strcmp(name, "cache-size"))
                ctx.cfg.cache_size = atoi(value);
        else if (!strcmp(name, "cache-root"))

-               ctx.cfg.cache_root = xstrdup(value);
+               ctx.cfg.cache_root = xstrdup(expand_macros(value));

        else if (!strcmp(name, "cache-root-ttl"))
                ctx.cfg.cache_root_ttl = atoi(value);
        else if (!strcmp(name, "cache-repo-ttl"))
                ctx.cfg.cache_repo_ttl = atoi(value);
        else if (!strcmp(name, "cache-root-ttl"))
                ctx.cfg.cache_root_ttl = atoi(value);
        else if (!strcmp(name, "cache-repo-ttl"))
                ctx.cfg.cache_repo_ttl = atoi(value);

+       else if (!strcmp(name, "cache-scanrc-ttl"))
+               ctx.cfg.cache_scanrc_ttl = atoi(value);

        else if (!strcmp(name, "cache-static-ttl"))
                ctx.cfg.cache_static_ttl = atoi(value);
        else if (!strcmp(name, "cache-dynamic-ttl"))
                ctx.cfg.cache_dynamic_ttl = atoi(value);
        else if (!strcmp(name, "cache-static-ttl"))
                ctx.cfg.cache_static_ttl = atoi(value);
        else if (!strcmp(name, "cache-dynamic-ttl"))
                ctx.cfg.cache_dynamic_ttl = atoi(value);

+       else if (!strcmp(name, "case-sensitive-sort"))
+               ctx.cfg.case_sensitive_sort = atoi(value);
+       else if (!strcmp(name, "about-filter"))
+               ctx.cfg.about_filter = new_filter(value, ABOUT);
+       else if (!strcmp(name, "commit-filter"))
+               ctx.cfg.commit_filter = new_filter(value, COMMIT);
+       else if (!strcmp(name, "embedded"))
+               ctx.cfg.embedded = atoi(value);
+       else if (!strcmp(name, "max-atom-items"))
+               ctx.cfg.max_atom_items = atoi(value);

        else if (!strcmp(name, "max-message-length"))
                ctx.cfg.max_msg_len = atoi(value);
        else if (!strcmp(name, "max-repodesc-length"))
                ctx.cfg.max_repodesc_len = atoi(value);
        else if (!strcmp(name, "max-message-length"))
                ctx.cfg.max_msg_len = atoi(value);
        else if (!strcmp(name, "max-repodesc-length"))
                ctx.cfg.max_repodesc_len = atoi(value);

+       else if (!strcmp(name, "max-blob-size"))
+               ctx.cfg.max_blob_size = atoi(value);

        else if (!strcmp(name, "max-repo-count"))
                ctx.cfg.max_repo_count = atoi(value);
        else if (!strcmp(name, "max-commit-count"))
                ctx.cfg.max_commit_count = atoi(value);
        else if (!strcmp(name, "max-repo-count"))
                ctx.cfg.max_repo_count = atoi(value);
        else if (!strcmp(name, "max-commit-count"))
                ctx.cfg.max_commit_count = atoi(value);

+       else if (!strcmp(name, "project-list"))
+               ctx.cfg.project_list = xstrdup(expand_macros(value));
+       else if (!strcmp(name, "scan-path"))
+               if (!ctx.cfg.nocache && ctx.cfg.cache_size)
+                       process_cached_repolist(expand_macros(value));
+               else if (ctx.cfg.project_list)
+                       scan_projects(expand_macros(value),
+                                     ctx.cfg.project_list, repo_config);
+               else
+                       scan_tree(expand_macros(value), repo_config);
+       else if (!strcmp(name, "scan-hidden-path"))
+               ctx.cfg.scan_hidden_path = atoi(value);
+       else if (!strcmp(name, "section-from-path"))
+               ctx.cfg.section_from_path = atoi(value);
+       else if (!strcmp(name, "repository-sort"))
+               ctx.cfg.repository_sort = xstrdup(value);
+       else if (!strcmp(name, "section-sort"))
+               ctx.cfg.section_sort = atoi(value);
+       else if (!strcmp(name, "source-filter"))
+               ctx.cfg.source_filter = new_filter(value, SOURCE);

        else if (!strcmp(name, "summary-log"))
                ctx.cfg.summary_log = atoi(value);
        else if (!strcmp(name, "summary-branches"))
                ctx.cfg.summary_branches = atoi(value);
        else if (!strcmp(name, "summary-tags"))
                ctx.cfg.summary_tags = atoi(value);
        else if (!strcmp(name, "summary-log"))
                ctx.cfg.summary_log = atoi(value);
        else if (!strcmp(name, "summary-branches"))
                ctx.cfg.summary_branches = atoi(value);
        else if (!strcmp(name, "summary-tags"))
                ctx.cfg.summary_tags = atoi(value);

+       else if (!strcmp(name, "side-by-side-diffs"))
+               ctx.cfg.ssdiff = atoi(value);

        else if (!strcmp(name, "agefile"))
                ctx.cfg.agefile = xstrdup(value);
        else if (!strcmp(name, "agefile"))
                ctx.cfg.agefile = xstrdup(value);

+       else if (!strcmp(name, "mimetype-file"))
+               ctx.cfg.mimetype_file = xstrdup(value);

        else if (!strcmp(name, "renamelimit"))
                ctx.cfg.renamelimit = atoi(value);
        else if (!strcmp(name, "renamelimit"))
                ctx.cfg.renamelimit = atoi(value);

+       else if (!strcmp(name, "remove-suffix"))
+               ctx.cfg.remove_suffix = atoi(value);

        else if (!strcmp(name, "robots"))
                ctx.cfg.robots = xstrdup(value);
        else if (!strcmp(name, "clone-prefix"))
                ctx.cfg.clone_prefix = xstrdup(value);
        else if (!strcmp(name, "robots"))
                ctx.cfg.robots = xstrdup(value);
        else if (!strcmp(name, "clone-prefix"))
                ctx.cfg.clone_prefix = xstrdup(value);

+       else if (!strcmp(name, "clone-url"))
+               ctx.cfg.clone_url = xstrdup(value);

        else if (!strcmp(name, "local-time"))
                ctx.cfg.local_time = atoi(value);
        else if (!strcmp(name, "local-time"))
                ctx.cfg.local_time = atoi(value);

-       else if (!strcmp(name, "repo.group"))
-               ctx.cfg.repo_group = xstrdup(value);
-       else if (!strcmp(name, "repo.url"))
-               ctx.repo = cgit_add_repo(value);
-       else if (!strcmp(name, "repo.name"))
-               ctx.repo->name = xstrdup(value);
-       else if (ctx.repo && !strcmp(name, "repo.path"))
-               ctx.repo->path = trim_end(value, '/');
-       else if (ctx.repo && !strcmp(name, "repo.clone-url"))
-               ctx.repo->clone_url = xstrdup(value);
-       else if (ctx.repo && !strcmp(name, "repo.desc"))
-               ctx.repo->desc = xstrdup(value);
-       else if (ctx.repo && !strcmp(name, "repo.owner"))
-               ctx.repo->owner = xstrdup(value);
-       else if (ctx.repo && !strcmp(name, "repo.defbranch"))
-               ctx.repo->defbranch = xstrdup(value);
-       else if (ctx.repo && !strcmp(name, "repo.snapshots"))
-               ctx.repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value); /* XXX: &? */
-       else if (ctx.repo && !strcmp(name, "repo.enable-log-filecount"))
-               ctx.repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value);
-       else if (ctx.repo && !strcmp(name, "repo.enable-log-linecount"))
-               ctx.repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
-       else if (ctx.repo && !strcmp(name, "repo.module-link"))
-               ctx.repo->module_link= xstrdup(value);
-       else if (ctx.repo && !strcmp(name, "repo.readme") && value != NULL) {
-               if (*value == '/')
-                       ctx.repo->readme = xstrdup(value);
-               else
-                       ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.repo->path, value));
-       } else if (!strcmp(name, "include"))
-               parse_configfile(value, config_cb);
+       else if (!strcmp(name, "commit-sort")) {
+               if (!strcmp(value, "date"))
+                       ctx.cfg.commit_sort = 1;
+               if (!strcmp(value, "topo"))
+                       ctx.cfg.commit_sort = 2;
+       } else if (!prefixcmp(name, "mimetype."))
+               add_mimetype(name + 9, value);
+       else if (!strcmp(name, "include"))
+               parse_configfile(expand_macros(value), config_cb);

 }
 
 static void querystring_cb(const char *name, const char *value)
 {
 }
 
 static void querystring_cb(const char *name, const char *value)
 {

+       if (!value)
+               value = "";
+

        if (!strcmp(name,"r")) {
                ctx.qry.repo = xstrdup(value);
                ctx.repo = cgit_get_repoinfo(value);
        } else if (!strcmp(name, "p")) {
                ctx.qry.page = xstrdup(value);
        } else if (!strcmp(name, "url")) {
        if (!strcmp(name,"r")) {
                ctx.qry.repo = xstrdup(value);
                ctx.repo = cgit_get_repoinfo(value);
        } else if (!strcmp(name, "p")) {
                ctx.qry.page = xstrdup(value);
        } else if (!strcmp(name, "url")) {

+               if (*value == '/')
+                       value++;

                ctx.qry.url = xstrdup(value);
                cgit_parse_url(value);
        } else if (!strcmp(name, "qt")) {
                ctx.qry.url = xstrdup(value);
                cgit_parse_url(value);
        } else if (!strcmp(name, "qt")) {


@@ -154,12 +315,32 @@ static void querystring_cb(const char *name, const char *value)
                ctx.qry.name = xstrdup(value);
        } else if (!strcmp(name, "mimetype")) {
                ctx.qry.mimetype = xstrdup(value);
                ctx.qry.name = xstrdup(value);
        } else if (!strcmp(name, "mimetype")) {
                ctx.qry.mimetype = xstrdup(value);

+       } else if (!strcmp(name, "s")) {
+               ctx.qry.sort = xstrdup(value);
+       } else if (!strcmp(name, "showmsg")) {
+               ctx.qry.showmsg = atoi(value);
+       } else if (!strcmp(name, "period")) {
+               ctx.qry.period = xstrdup(value);
+       } else if (!strcmp(name, "ss")) {
+               ctx.qry.ssdiff = atoi(value);
+               ctx.qry.has_ssdiff = 1;
+       } else if (!strcmp(name, "all")) {
+               ctx.qry.show_all = atoi(value);
+       } else if (!strcmp(name, "context")) {
+               ctx.qry.context = atoi(value);
+       } else if (!strcmp(name, "ignorews")) {
+               ctx.qry.ignorews = atoi(value);

        }
 }
 
        }
 }
 

+static char *xstrdupn(const char *str)
+{
+       return (str ? xstrdup(str) : NULL);
+}
+

 static void prepare_context(struct cgit_context *ctx)
 {
 static void prepare_context(struct cgit_context *ctx)
 {

-       memset(ctx, 0, sizeof(ctx));
+       memset(ctx, 0, sizeof(*ctx));

        ctx->cfg.agefile = "info/web/last-modified";
        ctx->cfg.nocache = 0;
        ctx->cfg.cache_size = 0;
        ctx->cfg.agefile = "info/web/last-modified";
        ctx->cfg.nocache = 0;
        ctx->cfg.cache_size = 0;


@@ -168,30 +349,63 @@ static void prepare_context(struct cgit_context *ctx)
        ctx->cfg.cache_repo_ttl = 5;
        ctx->cfg.cache_root = CGIT_CACHE_ROOT;
        ctx->cfg.cache_root_ttl = 5;
        ctx->cfg.cache_repo_ttl = 5;
        ctx->cfg.cache_root = CGIT_CACHE_ROOT;
        ctx->cfg.cache_root_ttl = 5;

+       ctx->cfg.cache_scanrc_ttl = 15;

        ctx->cfg.cache_static_ttl = -1;
        ctx->cfg.cache_static_ttl = -1;

+       ctx->cfg.case_sensitive_sort = 1;

        ctx->cfg.css = "/cgit.css";
        ctx->cfg.css = "/cgit.css";

-       ctx->cfg.logo = "/git-logo.png";
+       ctx->cfg.logo = "/cgit.png";

        ctx->cfg.local_time = 0;
        ctx->cfg.local_time = 0;

+       ctx->cfg.enable_http_clone = 1;
+       ctx->cfg.enable_index_owner = 1;
+       ctx->cfg.enable_tree_linenumbers = 1;
+       ctx->cfg.enable_git_config = 0;

        ctx->cfg.max_repo_count = 50;
        ctx->cfg.max_commit_count = 50;
        ctx->cfg.max_lock_attempts = 5;
        ctx->cfg.max_msg_len = 80;
        ctx->cfg.max_repodesc_len = 80;
        ctx->cfg.max_repo_count = 50;
        ctx->cfg.max_commit_count = 50;
        ctx->cfg.max_lock_attempts = 5;
        ctx->cfg.max_msg_len = 80;
        ctx->cfg.max_repodesc_len = 80;

-       ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s";
+       ctx->cfg.max_blob_size = 0;
+       ctx->cfg.max_stats = 0;
+       ctx->cfg.project_list = NULL;

        ctx->cfg.renamelimit = -1;
        ctx->cfg.renamelimit = -1;

+       ctx->cfg.remove_suffix = 0;

        ctx->cfg.robots = "index, nofollow";
        ctx->cfg.root_title = "Git repository browser";
        ctx->cfg.root_desc = "a fast webinterface for the git dscm";
        ctx->cfg.robots = "index, nofollow";
        ctx->cfg.root_title = "Git repository browser";
        ctx->cfg.root_desc = "a fast webinterface for the git dscm";

+       ctx->cfg.scan_hidden_path = 0;

        ctx->cfg.script_name = CGIT_SCRIPT_NAME;
        ctx->cfg.script_name = CGIT_SCRIPT_NAME;

+       ctx->cfg.section = "";
+       ctx->cfg.repository_sort = "name";
+       ctx->cfg.section_sort = 1;

        ctx->cfg.summary_branches = 10;
        ctx->cfg.summary_log = 10;
        ctx->cfg.summary_tags = 10;
        ctx->cfg.summary_branches = 10;
        ctx->cfg.summary_log = 10;
        ctx->cfg.summary_tags = 10;

+       ctx->cfg.max_atom_items = 10;
+       ctx->cfg.ssdiff = 0;
+       ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
+       ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
+       ctx->env.https = xstrdupn(getenv("HTTPS"));
+       ctx->env.no_http = xstrdupn(getenv("NO_HTTP"));
+       ctx->env.path_info = xstrdupn(getenv("PATH_INFO"));
+       ctx->env.query_string = xstrdupn(getenv("QUERY_STRING"));
+       ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD"));
+       ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME"));
+       ctx->env.server_name = xstrdupn(getenv("SERVER_NAME"));
+       ctx->env.server_port = xstrdupn(getenv("SERVER_PORT"));

        ctx->page.mimetype = "text/html";
        ctx->page.charset = PAGE_ENCODING;
        ctx->page.filename = NULL;
        ctx->page.size = 0;
        ctx->page.modified = time(NULL);
        ctx->page.expires = ctx->page.modified;
        ctx->page.mimetype = "text/html";
        ctx->page.charset = PAGE_ENCODING;
        ctx->page.filename = NULL;
        ctx->page.size = 0;
        ctx->page.modified = time(NULL);
        ctx->page.expires = ctx->page.modified;

+       ctx->page.etag = NULL;
+       memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
+       if (ctx->env.script_name)
+               ctx->cfg.script_name = ctx->env.script_name;
+       if (ctx->env.query_string)
+               ctx->qry.raw = ctx->env.query_string;
+       if (!ctx->env.cgit_config)
+               ctx->env.cgit_config = CGIT_CONFIG;

 }
 
 struct refmatch {
 }
 
 struct refmatch {


@@ -200,8 +414,8 @@ struct refmatch {
        int match;
 };
 
        int match;
 };
 

-int find_current_ref(const char *refname, const unsigned char *sha1,
-                    int flags, void *cb_data)
+static int find_current_ref(const char *refname, const unsigned char *sha1,
+                           int flags, void *cb_data)

 {
        struct refmatch *info;
 
 {
        struct refmatch *info;
 


@@ -213,7 +427,13 @@ int find_current_ref(const char *refname, const unsigned char *sha1,
        return info->match;
 }
 
        return info->match;
 }
 

-char *find_default_branch(struct cgit_repo *repo)
+static void free_refmatch_inner(struct refmatch *info)
+{
+       if (info->first_ref)
+               free(info->first_ref);
+}
+
+static char *find_default_branch(struct cgit_repo *repo)

 {
        struct refmatch info;
        char *ref;
 {
        struct refmatch info;
        char *ref;


@@ -228,21 +448,38 @@ char *find_default_branch(struct cgit_repo *repo)
                ref = info.first_ref;
        if (ref)
                ref = xstrdup(ref);
                ref = info.first_ref;
        if (ref)
                ref = xstrdup(ref);

+       free_refmatch_inner(&info);
+

        return ref;
 }
 
        return ref;
 }
 

+static char *guess_defbranch(void)
+{
+       const char *ref;
+       unsigned char sha1[20];
+
+       ref = resolve_ref_unsafe("HEAD", sha1, 0, NULL);
+       if (!ref || prefixcmp(ref, "refs/heads/"))
+               return "master";
+       return xstrdup(ref + 11);
+}
+

 static int prepare_repo_cmd(struct cgit_context *ctx)
 {
        char *tmp;
        unsigned char sha1[20];
        int nongit = 0;
 static int prepare_repo_cmd(struct cgit_context *ctx)
 {
        char *tmp;
        unsigned char sha1[20];
        int nongit = 0;

+       int rc;

 
        setenv("GIT_DIR", ctx->repo->path, 1);
        setup_git_directory_gently(&nongit);
        if (nongit) {
 
        setenv("GIT_DIR", ctx->repo->path, 1);
        setup_git_directory_gently(&nongit);
        if (nongit) {

+               rc = errno;

                ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
                                      "config error");
                ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
                                      "config error");

-               tmp = fmt("Not a git repository: '%s'", ctx->repo->path);
+               tmp = fmt("Failed to open %s: %s",
+                         ctx->repo->name,
+                         rc ? strerror(rc) : "Not a valid git repository");

                ctx->repo = NULL;
                cgit_print_http_headers(ctx);
                cgit_print_docstart(ctx);
                ctx->repo = NULL;
                cgit_print_http_headers(ctx);
                cgit_print_docstart(ctx);


@@ -253,9 +490,12 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
        }
        ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
 
        }
        ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
 

+       if (!ctx->repo->defbranch)
+               ctx->repo->defbranch = guess_defbranch();
+

        if (!ctx->qry.head) {
        if (!ctx->qry.head) {

+               ctx->qry.nohead = 1;

                ctx->qry.head = find_default_branch(ctx->repo);
                ctx->qry.head = find_default_branch(ctx->repo);

-               ctx->repo->defbranch = ctx->qry.head;

        }
 
        if (!ctx->qry.head) {
        }
 
        if (!ctx->qry.head) {


@@ -270,6 +510,8 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
        if (get_sha1(ctx->qry.head, sha1)) {
                tmp = xstrdup(ctx->qry.head);
                ctx->qry.head = ctx->repo->defbranch;
        if (get_sha1(ctx->qry.head, sha1)) {
                tmp = xstrdup(ctx->qry.head);
                ctx->qry.head = ctx->repo->defbranch;

+               ctx->page.status = 404;
+               ctx->page.statusmsg = "Not found";

                cgit_print_http_headers(ctx);
                cgit_print_docstart(ctx);
                cgit_print_pageheader(ctx);
                cgit_print_http_headers(ctx);
                cgit_print_docstart(ctx);
                cgit_print_pageheader(ctx);


@@ -277,6 +519,8 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
                cgit_print_docend();
                return 1;
        }
                cgit_print_docend();
                return 1;
        }

+       sort_string_list(&ctx->repo->submodules);
+       cgit_prepare_repo_env(ctx->repo);

        return 0;
 }
 
        return 0;
 }
 


@@ -288,7 +532,8 @@ static void process_request(void *cbdata)
        cmd = cgit_get_cmd(ctx);
        if (!cmd) {
                ctx->page.title = "cgit error";
        cmd = cgit_get_cmd(ctx);
        if (!cmd) {
                ctx->page.title = "cgit error";

-               ctx->repo = NULL;
+               ctx->page.status = 404;
+               ctx->page.statusmsg = "Not found";

                cgit_print_http_headers(ctx);
                cgit_print_docstart(ctx);
                cgit_print_pageheader(ctx);
                cgit_print_http_headers(ctx);
                cgit_print_docstart(ctx);
                cgit_print_pageheader(ctx);


@@ -297,6 +542,17 @@ static void process_request(void *cbdata)
                return;
        }
 
                return;
        }
 

+       if (!ctx->cfg.enable_http_clone && cmd->is_clone) {
+               html_status(404, "Not found", 0);
+               return;
+       }
+
+       /* If cmd->want_vpath is set, assume ctx->qry.path contains a "virtual"
+        * in-project path limit to be made available at ctx->qry.vpath.
+        * Otherwise, no path limit is in effect (ctx->qry.vpath = NULL).
+        */
+       ctx->qry.vpath = cmd->want_vpath ? ctx->qry.path : NULL;
+

        if (cmd->want_repo && !ctx->repo) {
                cgit_print_http_headers(ctx);
                cgit_print_docstart(ctx);
        if (cmd->want_repo && !ctx->repo) {
                cgit_print_http_headers(ctx);
                cgit_print_docstart(ctx);


@@ -321,34 +577,170 @@ static void process_request(void *cbdata)
                cgit_print_docend();
 }
 
                cgit_print_docend();
 }
 

-int cmp_repos(const void *a, const void *b)
+static int cmp_repos(const void *a, const void *b)

 {
        const struct cgit_repo *ra = a, *rb = b;
        return strcmp(ra->url, rb->url);
 }
 
 {
        const struct cgit_repo *ra = a, *rb = b;
        return strcmp(ra->url, rb->url);
 }
 

-void print_repo(struct cgit_repo *repo)
+static char *build_snapshot_setting(int bitmap)
+{
+       const struct cgit_snapshot_format *f;
+       char *result = xstrdup("");
+       char *tmp;
+       int len;
+
+       for (f = cgit_snapshot_formats; f->suffix; f++) {
+               if (f->bit & bitmap) {
+                       tmp = result;
+                       result = xstrdup(fmt("%s%s ", tmp, f->suffix));
+                       free(tmp);
+               }
+       }
+       len = strlen(result);
+       if (len)
+               result[len - 1] = '\0';
+       return result;
+}
+
+static char *get_first_line(char *txt)
+{
+       char *t = xstrdup(txt);
+       char *p = strchr(t, '\n');
+       if (p)
+               *p = '\0';
+       return t;
+}
+
+static void print_repo(FILE *f, struct cgit_repo *repo)

 {
 {

-       printf("repo.url=%s\n", repo->url);
-       printf("repo.name=%s\n", repo->name);
-       printf("repo.path=%s\n", repo->path);
+       fprintf(f, "repo.url=%s\n", repo->url);
+       fprintf(f, "repo.name=%s\n", repo->name);
+       fprintf(f, "repo.path=%s\n", repo->path);

        if (repo->owner)
        if (repo->owner)

-               printf("repo.owner=%s\n", repo->owner);
-       if (repo->desc)
-               printf("repo.desc=%s\n", repo->desc);
+               fprintf(f, "repo.owner=%s\n", repo->owner);
+       if (repo->desc) {
+               char *tmp = get_first_line(repo->desc);
+               fprintf(f, "repo.desc=%s\n", tmp);
+               free(tmp);
+       }

        if (repo->readme)
        if (repo->readme)

-               printf("repo.readme=%s\n", repo->readme);
-       printf("\n");
+               fprintf(f, "repo.readme=%s\n", repo->readme);
+       if (repo->defbranch)
+               fprintf(f, "repo.defbranch=%s\n", repo->defbranch);
+       if (repo->module_link)
+               fprintf(f, "repo.module-link=%s\n", repo->module_link);
+       if (repo->section)
+               fprintf(f, "repo.section=%s\n", repo->section);
+       if (repo->clone_url)
+               fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
+       fprintf(f, "repo.enable-commit-graph=%d\n",
+               repo->enable_commit_graph);
+       fprintf(f, "repo.enable-log-filecount=%d\n",
+               repo->enable_log_filecount);
+       fprintf(f, "repo.enable-log-linecount=%d\n",
+               repo->enable_log_linecount);
+       if (repo->about_filter && repo->about_filter != ctx.cfg.about_filter)
+               fprintf(f, "repo.about-filter=%s\n", repo->about_filter->cmd);
+       if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter)
+               fprintf(f, "repo.commit-filter=%s\n", repo->commit_filter->cmd);
+       if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter)
+               fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd);
+       if (repo->snapshots != ctx.cfg.snapshots) {
+               char *tmp = build_snapshot_setting(repo->snapshots);
+               fprintf(f, "repo.snapshots=%s\n", tmp);
+               free(tmp);
+       }
+       if (repo->max_stats != ctx.cfg.max_stats)
+               fprintf(f, "repo.max-stats=%s\n",
+                       cgit_find_stats_periodname(repo->max_stats));
+       fprintf(f, "\n");

 }
 
 }
 

-void print_repolist(struct cgit_repolist *list)
+static void print_repolist(FILE *f, struct cgit_repolist *list, int start)

 {
        int i;
 
 {
        int i;
 

-       for(i = 0; i < list->count; i++)
-               print_repo(&list->repos[i]);
+       for (i = start; i < list->count; i++)
+               print_repo(f, &list->repos[i]);

 }
 
 }
 

+/* Scan 'path' for git repositories, save the resulting repolist in 'cached_rc'
+ * and return 0 on success.
+ */
+static int generate_cached_repolist(const char *path, const char *cached_rc)
+{
+       char *locked_rc;
+       int idx;
+       FILE *f;
+
+       locked_rc = xstrdup(fmt("%s.lock", cached_rc));
+       f = fopen(locked_rc, "wx");
+       if (!f) {
+               /* Inform about the error unless the lockfile already existed,
+                * since that only means we've got concurrent requests.
+                */
+               if (errno != EEXIST)
+                       fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n",
+                               locked_rc, strerror(errno), errno);
+               return errno;
+       }
+       idx = cgit_repolist.count;
+       if (ctx.cfg.project_list)
+               scan_projects(path, ctx.cfg.project_list, repo_config);
+       else
+               scan_tree(path, repo_config);
+       print_repolist(f, &cgit_repolist, idx);
+       if (rename(locked_rc, cached_rc))
+               fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
+                       locked_rc, cached_rc, strerror(errno), errno);
+       fclose(f);
+       return 0;
+}
+
+static void process_cached_repolist(const char *path)
+{
+       struct stat st;
+       char *cached_rc;
+       time_t age;
+       unsigned long hash;
+
+       hash = hash_str(path);
+       if (ctx.cfg.project_list)
+               hash += hash_str(ctx.cfg.project_list);
+       cached_rc = xstrdup(fmt("%s/rc-%8lx", ctx.cfg.cache_root, hash));
+
+       if (stat(cached_rc, &st)) {
+               /* Nothing is cached, we need to scan without forking. And
+                * if we fail to generate a cached repolist, we need to
+                * invoke scan_tree manually.
+                */
+               if (generate_cached_repolist(path, cached_rc)) {
+                       if (ctx.cfg.project_list)
+                               scan_projects(path, ctx.cfg.project_list,
+                                             repo_config);
+                       else
+                               scan_tree(path, repo_config);
+               }
+               return;
+       }
+
+       parse_configfile(cached_rc, config_cb);
+
+       /* If the cached configfile hasn't expired, lets exit now */
+       age = time(NULL) - st.st_mtime;
+       if (age <= (ctx.cfg.cache_scanrc_ttl * 60))
+               return;
+
+       /* The cached repolist has been parsed, but it was old. So lets
+        * rescan the specified path and generate a new cached repolist
+        * in a child-process to avoid latency for the current request.
+        */
+       if (fork())
+               return;
+
+       exit(generate_cached_repolist(path, cached_rc));
+}

 
 static void cgit_parse_args(int argc, const char **argv)
 {
 
 static void cgit_parse_args(int argc, const char **argv)
 {


@@ -357,40 +749,54 @@ static void cgit_parse_args(int argc, const char **argv)
 
        for (i = 1; i < argc; i++) {
                if (!strncmp(argv[i], "--cache=", 8)) {
 
        for (i = 1; i < argc; i++) {
                if (!strncmp(argv[i], "--cache=", 8)) {

-                       ctx.cfg.cache_root = xstrdup(argv[i]+8);
+                       ctx.cfg.cache_root = xstrdup(argv[i] + 8);

                }
                if (!strcmp(argv[i], "--nocache")) {
                        ctx.cfg.nocache = 1;
                }
                }
                if (!strcmp(argv[i], "--nocache")) {
                        ctx.cfg.nocache = 1;
                }

+               if (!strcmp(argv[i], "--nohttp")) {
+                       ctx.env.no_http = "1";
+               }

                if (!strncmp(argv[i], "--query=", 8)) {
                if (!strncmp(argv[i], "--query=", 8)) {

-                       ctx.qry.raw = xstrdup(argv[i]+8);
+                       ctx.qry.raw = xstrdup(argv[i] + 8);

                }
                if (!strncmp(argv[i], "--repo=", 7)) {
                }
                if (!strncmp(argv[i], "--repo=", 7)) {

-                       ctx.qry.repo = xstrdup(argv[i]+7);
+                       ctx.qry.repo = xstrdup(argv[i] + 7);

                }
                if (!strncmp(argv[i], "--page=", 7)) {
                }
                if (!strncmp(argv[i], "--page=", 7)) {

-                       ctx.qry.page = xstrdup(argv[i]+7);
+                       ctx.qry.page = xstrdup(argv[i] + 7);

                }
                if (!strncmp(argv[i], "--head=", 7)) {
                }
                if (!strncmp(argv[i], "--head=", 7)) {

-                       ctx.qry.head = xstrdup(argv[i]+7);
+                       ctx.qry.head = xstrdup(argv[i] + 7);

                        ctx.qry.has_symref = 1;
                }
                if (!strncmp(argv[i], "--sha1=", 7)) {
                        ctx.qry.has_symref = 1;
                }
                if (!strncmp(argv[i], "--sha1=", 7)) {

-                       ctx.qry.sha1 = xstrdup(argv[i]+7);
+                       ctx.qry.sha1 = xstrdup(argv[i] + 7);

                        ctx.qry.has_sha1 = 1;
                }
                if (!strncmp(argv[i], "--ofs=", 6)) {
                        ctx.qry.has_sha1 = 1;
                }
                if (!strncmp(argv[i], "--ofs=", 6)) {

-                       ctx.qry.ofs = atoi(argv[i]+6);
+                       ctx.qry.ofs = atoi(argv[i] + 6);

                }
                }

-               if (!strncmp(argv[i], "--scan-tree=", 12)) {
+               if (!strncmp(argv[i], "--scan-tree=", 12) ||
+                   !strncmp(argv[i], "--scan-path=", 12)) {
+                       /* HACK: the global snapshot bitmask defines the
+                        * set of allowed snapshot formats, but the config
+                        * file hasn't been parsed yet so the mask is
+                        * currently 0. By setting all bits high before
+                        * scanning we make sure that any in-repo cgitrc
+                        * snapshot setting is respected by scan_tree().
+                        * BTW: we assume that there'll never be more than
+                        * 255 different snapshot formats supported by cgit...
+                        */
+                       ctx.cfg.snapshots = 0xFF;

                        scan++;
                        scan++;

-                       scan_tree(argv[i] + 12);
+                       scan_tree(argv[i] + 12, repo_config);

                }
        }
        if (scan) {
                qsort(cgit_repolist.repos, cgit_repolist.count,
                        sizeof(struct cgit_repo), cmp_repos);
                }
        }
        if (scan) {
                qsort(cgit_repolist.repos, cgit_repolist.count,
                        sizeof(struct cgit_repo), cmp_repos);

-               print_repolist(&cgit_repolist);
+               print_repolist(stdout, &cgit_repolist, 0);

                exit(0);
        }
 }
                exit(0);
        }
 }


@@ -414,7 +820,6 @@ static int calc_ttl()
 
 int main(int argc, const char **argv)
 {
 
 int main(int argc, const char **argv)
 {

-       const char *cgit_config_env = getenv("CGIT_CONFIG");

        const char *path;
        char *qry;
        int err, ttl;
        const char *path;
        char *qry;
        int err, ttl;


@@ -424,42 +829,44 @@ int main(int argc, const char **argv)
        cgit_repolist.count = 0;
        cgit_repolist.repos = NULL;
 
        cgit_repolist.count = 0;
        cgit_repolist.repos = NULL;
 

-       if (getenv("SCRIPT_NAME"))
-               ctx.cfg.script_name = xstrdup(getenv("SCRIPT_NAME"));
-       if (getenv("QUERY_STRING"))
-               ctx.qry.raw = xstrdup(getenv("QUERY_STRING"));

        cgit_parse_args(argc, argv);
        cgit_parse_args(argc, argv);

-       parse_configfile(cgit_config_env ? cgit_config_env : CGIT_CONFIG,
-                        config_cb);
+       parse_configfile(expand_macros(ctx.env.cgit_config), config_cb);

        ctx.repo = NULL;
        http_parse_querystring(ctx.qry.raw, querystring_cb);
 
        ctx.repo = NULL;
        http_parse_querystring(ctx.qry.raw, querystring_cb);
 

-       /* If virtual-root isn't specified in cgitrc and no url
-        * parameter is specified on the querystring, lets pretend
-        * that virtualroot equals SCRIPT_NAME and use PATH_INFO as
-        * url. This allows cgit to work with virtual urls without
-        * the need for rewriterules in the webserver (as long as
-        * PATH_INFO is included in the cache lookup key).
+       /* If virtual-root isn't specified in cgitrc, lets pretend
+        * that virtual-root equals SCRIPT_NAME, minus any possibly
+        * trailing slashes.

         */
         */

-       if (!ctx.cfg.virtual_root && !ctx.qry.url) {
-               ctx.cfg.virtual_root = ctx.cfg.script_name;
-               path = getenv("PATH_INFO");
-               if (path) {
-                       if (path[0] == '/')
-                               path++;
-                       ctx.qry.url = xstrdup(path);
-                       if (ctx.qry.raw) {
-                               qry = ctx.qry.raw;
-                               ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
-                               free(qry);
-                       } else
-                               ctx.qry.raw = ctx.qry.url;
-                       cgit_parse_url(ctx.qry.url);
-               }
+       if (!ctx.cfg.virtual_root && ctx.cfg.script_name) {
+               ctx.cfg.virtual_root = trim_end(ctx.cfg.script_name, '/');
+               if (!ctx.cfg.virtual_root)
+                       ctx.cfg.virtual_root = "";
+       }
+
+       /* If no url parameter is specified on the querystring, lets
+        * use PATH_INFO as url. This allows cgit to work with virtual
+        * urls without the need for rewriterules in the webserver (as
+        * long as PATH_INFO is included in the cache lookup key).
+        */
+       path = ctx.env.path_info;
+       if (!ctx.qry.url && path) {
+               if (path[0] == '/')
+                       path++;
+               ctx.qry.url = xstrdup(path);
+               if (ctx.qry.raw) {
+                       qry = ctx.qry.raw;
+                       ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
+                       free(qry);
+               } else
+                       ctx.qry.raw = xstrdup(ctx.qry.url);
+               cgit_parse_url(ctx.qry.url);

        }
 
        ttl = calc_ttl();
        }
 
        ttl = calc_ttl();

-       ctx.page.expires += ttl*60;
+       ctx.page.expires += ttl * 60;
+       if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
+               ctx.cfg.nocache = 1;

        if (ctx.cfg.nocache)
                ctx.cfg.cache_size = 0;
        err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
        if (ctx.cfg.nocache)
                ctx.cfg.cache_size = 0;
        err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,