Add separate header-files for each page/view

[ps-cgit] / cgit.c

diff --git a/cgit.c b/cgit.c
index 0fa203cf457f4d07723c1fa0110fb2ef61106cbd..79e0e430db79691e1735dbeb2cf4d7400b7e5bc0 100644 (file)
--- a/cgit.c
+++ b/cgit.c
@@ -7,109 +7,189 @@
  */
 
 #include "cgit.h"
  */
 
 #include "cgit.h"

+#include "cmd.h"

 
 

-const char cgit_version[] = CGIT_VERSION;
+static int cgit_prepare_cache(struct cacheitem *item)
+{
+       if (!ctx.repo && ctx.qry.repo) {
+               ctx.page.title = fmt("%s - %s", ctx.cfg.root_title,
+                                     "Bad request");
+               cgit_print_http_headers(&ctx);
+               cgit_print_docstart(&ctx);
+               cgit_print_pageheader(&ctx);
+               cgit_print_error(fmt("Unknown repo: %s", ctx.qry.repo));
+               cgit_print_docend();
+               return 0;
+       }

 
 

+       if (!ctx.repo) {
+               item->name = xstrdup(fmt("%s/index.html", ctx.cfg.cache_root));
+               item->ttl = ctx.cfg.cache_root_ttl;
+               return 1;
+       }

 
 

-static struct repoinfo *cgit_get_repoinfo(char *url)
-{
-       int i;
-       struct repoinfo *repo;
-       
-       for (i=0; i<cgit_repolist.count; i++) {
-               repo = &cgit_repolist.repos[i];
-               if (!strcmp(repo->url, url))
-                       return repo;
+       if (!cgit_cmd) {
+               item->name = xstrdup(fmt("%s/%s/index.%s.html", ctx.cfg.cache_root,
+                                        cache_safe_filename(ctx.repo->url),
+                                        cache_safe_filename(ctx.qry.raw)));
+               item->ttl = ctx.cfg.cache_repo_ttl;
+       } else {
+               item->name = xstrdup(fmt("%s/%s/%s/%s.html", ctx.cfg.cache_root,
+                                        cache_safe_filename(ctx.repo->url),
+                                        ctx.qry.page,
+                                        cache_safe_filename(ctx.qry.raw)));
+               if (ctx.qry.has_symref)
+                       item->ttl = ctx.cfg.cache_dynamic_ttl;
+               else if (ctx.qry.has_sha1)
+                       item->ttl = ctx.cfg.cache_static_ttl;
+               else
+                       item->ttl = ctx.cfg.cache_repo_ttl;

        }
        }

-       return NULL;
+       return 1;

 }
 
 }
 

+struct refmatch {
+       char *req_ref;
+       char *first_ref;
+       int match;
+};

 
 

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

 {
 {

-       if (!cgit_query_repo) {
-               item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
-               item->ttl = cgit_cache_root_ttl;
+       struct refmatch *info;
+
+       info = (struct refmatch *)cb_data;
+       if (!strcmp(refname, info->req_ref))
+               info->match = 1;
+       if (!info->first_ref)
+               info->first_ref = xstrdup(refname);
+       return info->match;
+}
+
+char *find_default_branch(struct cgit_repo *repo)
+{
+       struct refmatch info;
+
+       info.req_ref = repo->defbranch;
+       info.first_ref = NULL;
+       info.match = 0;
+       for_each_branch_ref(find_current_ref, &info);
+       if (info.match)
+               return info.req_ref;
+       else
+               return info.first_ref;
+}
+
+static int prepare_repo_cmd(struct cgit_context *ctx)
+{
+       char *tmp;
+       unsigned char sha1[20];
+       int nongit = 0;
+
+       setenv("GIT_DIR", ctx->repo->path, 1);
+       setup_git_directory_gently(&nongit);
+       if (nongit) {
+               ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
+                                     "config error");
+               tmp = fmt("Not a git repository: '%s'", ctx->repo->path);
+               ctx->repo = NULL;
+               cgit_print_http_headers(ctx);
+               cgit_print_docstart(ctx);
+               cgit_print_pageheader(ctx);
+               cgit_print_error(tmp);
+               cgit_print_docend();

                return 1;
        }
                return 1;
        }

-       cgit_repo = cgit_get_repoinfo(cgit_query_repo);
-       if (!cgit_repo) {
-               char *title = fmt("%s - %s", cgit_root_title, "Bad request");
-               cgit_print_docstart(title, item);
-               cgit_print_pageheader(title, 0);
-               cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo));
+       ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
+
+       if (!ctx->qry.head) {
+               ctx->qry.head = xstrdup(find_default_branch(ctx->repo));
+               ctx->repo->defbranch = ctx->qry.head;
+       }
+
+       if (!ctx->qry.head) {
+               cgit_print_http_headers(ctx);
+               cgit_print_docstart(ctx);
+               cgit_print_pageheader(ctx);
+               cgit_print_error("Repository seems to be empty");

                cgit_print_docend();
                cgit_print_docend();

-               return 0;
+               return 1;

        }
 
        }
 

-       if (!cgit_query_page) {
-               item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root, 
-                          cgit_repo->url));
-               item->ttl = cgit_cache_repo_ttl;
-       } else {
-               item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root, 
-                          cgit_repo->url, cgit_query_page, 
-                          cache_safe_filename(cgit_querystring)));
-               if (cgit_query_has_symref)
-                       item->ttl = cgit_cache_dynamic_ttl;
-               else if (cgit_query_has_sha1)
-                       item->ttl = cgit_cache_static_ttl;
-               else
-                       item->ttl = cgit_cache_repo_ttl;
+       if (get_sha1(ctx->qry.head, sha1)) {
+               tmp = xstrdup(ctx->qry.head);
+               ctx->qry.head = ctx->repo->defbranch;
+               cgit_print_http_headers(ctx);
+               cgit_print_docstart(ctx);
+               cgit_print_pageheader(ctx);
+               cgit_print_error(fmt("Invalid branch: %s", tmp));
+               cgit_print_docend();
+               return 1;

        }
        }

-       return 1;
+       return 0;

 }
 
 }
 

-static void cgit_print_repo_page(struct cacheitem *item)
+static void process_request(struct cgit_context *ctx)

 {
 {

-       char *title;
-       int show_search;
-
-       if (chdir(cgit_repo->path)) {
-               title = fmt("%s - %s", cgit_root_title, "Bad request");
-               cgit_print_docstart(title, item);
-               cgit_print_pageheader(title, 0);
-               cgit_print_error(fmt("Unable to scan repository: %s",
-                                    strerror(errno)));
+       struct cgit_cmd *cmd;
+
+       cmd = cgit_get_cmd(ctx);
+       if (!cmd) {
+               ctx->page.title = "cgit error";
+               ctx->repo = NULL;
+               cgit_print_http_headers(ctx);
+               cgit_print_docstart(ctx);
+               cgit_print_pageheader(ctx);
+               cgit_print_error("Invalid request");

                cgit_print_docend();
                return;
        }
 
                cgit_print_docend();
                return;
        }
 

-       title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc);
-       show_search = 0;
-       setenv("GIT_DIR", cgit_repo->path, 1);
-       if (cgit_query_page && !strcmp(cgit_query_page, "log"))
-               show_search = 1;
-       cgit_print_docstart(title, item);
-       cgit_print_pageheader(title, show_search);
-       if (!cgit_query_page) {
-               cgit_print_summary();
-       } else if (!strcmp(cgit_query_page, "log")) {
-               cgit_print_log(cgit_query_head, cgit_query_ofs, 100, cgit_query_search);
-       } else if (!strcmp(cgit_query_page, "tree")) {
-               cgit_print_tree(cgit_query_sha1, cgit_query_path);
-       } else if (!strcmp(cgit_query_page, "commit")) {
-               cgit_print_commit(cgit_query_sha1);
-       } else if (!strcmp(cgit_query_page, "view")) {
-               cgit_print_view(cgit_query_sha1);
-       } else if (!strcmp(cgit_query_page, "diff")) {
-               cgit_print_diff(cgit_query_sha1, cgit_query_sha2);
+       if (cmd->want_repo && prepare_repo_cmd(ctx))
+               return;
+
+       if (cmd->want_layout) {
+               cgit_print_http_headers(ctx);
+               cgit_print_docstart(ctx);
+               cgit_print_pageheader(ctx);

        }
        }

-       cgit_print_docend();
+
+       cmd->fn(ctx);
+
+       if (cmd->want_layout)
+               cgit_print_docend();

 }
 
 }
 

-static void cgit_fill_cache(struct cacheitem *item)
+static long ttl_seconds(long ttl)

 {
 {

-       static char buf[PATH_MAX];
-
-       getcwd(buf, sizeof(buf));
-       htmlfd = item->fd;
-       item->st.st_mtime = time(NULL);
-       if (cgit_query_repo)
-               cgit_print_repo_page(item);
+       if (ttl<0)
+               return 60 * 60 * 24 * 365;

        else
        else

-               cgit_print_repolist(item);
-       chdir(buf);
+               return ttl * 60;
+}
+
+static void cgit_fill_cache(struct cacheitem *item, int use_cache)
+{
+       int stdout2;
+
+       if (use_cache) {
+               stdout2 = chk_positive(dup(STDOUT_FILENO),
+                                      "Preserving STDOUT");
+               chk_zero(close(STDOUT_FILENO), "Closing STDOUT");
+               chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)");
+       }
+
+       ctx.page.modified = time(NULL);
+       ctx.page.expires = ctx.page.modified + ttl_seconds(item->ttl);
+       process_request(&ctx);
+
+       if (use_cache) {
+               chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT");
+               chk_positive(dup2(stdout2, STDOUT_FILENO),
+                            "Restoring original STDOUT");
+               chk_zero(close(stdout2), "Closing temporary STDOUT");
+       }

 }
 
 static void cgit_check_cache(struct cacheitem *item)
 }
 
 static void cgit_check_cache(struct cacheitem *item)


@@ -117,7 +197,7 @@ static void cgit_check_cache(struct cacheitem *item)
        int i = 0;
 
  top:
        int i = 0;
 
  top:

-       if (++i > cgit_max_lock_attempts) {
+       if (++i > ctx.cfg.max_lock_attempts) {

                die("cgit_refresh_cache: unable to lock %s: %s",
                    item->name, strerror(errno));
        }
                die("cgit_refresh_cache: unable to lock %s: %s",
                    item->name, strerror(errno));
        }


@@ -127,14 +207,14 @@ static void cgit_check_cache(struct cacheitem *item)
                        goto top;
                }
                if (!cache_exist(item)) {
                        goto top;
                }
                if (!cache_exist(item)) {

-                       cgit_fill_cache(item);
+                       cgit_fill_cache(item, 1);

                        cache_unlock(item);
                } else {
                        cache_cancel_lock(item);
                }
        } else if (cache_expired(item) && cache_lock(item)) {
                if (cache_expired(item)) {
                        cache_unlock(item);
                } else {
                        cache_cancel_lock(item);
                }
        } else if (cache_expired(item) && cache_lock(item)) {
                if (cache_expired(item)) {

-                       cgit_fill_cache(item);
+                       cgit_fill_cache(item, 1);

                        cache_unlock(item);
                } else {
                        cache_cancel_lock(item);
                        cache_unlock(item);
                } else {
                        cache_cancel_lock(item);


@@ -163,30 +243,30 @@ 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)) {

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

                }
                if (!strcmp(argv[i], "--nocache")) {
                }
                if (!strcmp(argv[i], "--nocache")) {

-                       cgit_nocache = 1;
+                       ctx.cfg.nocache = 1;

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

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

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

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

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

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

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

-                       cgit_query_head = xstrdup(argv[i]+7);
-                       cgit_query_has_symref = 1;
+                       ctx.qry.head = xstrdup(argv[i]+7);
+                       ctx.qry.has_symref = 1;

                }
                if (!strncmp(argv[i], "--sha1=", 7)) {
                }
                if (!strncmp(argv[i], "--sha1=", 7)) {

-                       cgit_query_sha1 = xstrdup(argv[i]+7);
-                       cgit_query_has_sha1 = 1;
+                       ctx.qry.sha1 = xstrdup(argv[i]+7);
+                       ctx.qry.has_sha1 = 1;

                }
                if (!strncmp(argv[i], "--ofs=", 6)) {
                }
                if (!strncmp(argv[i], "--ofs=", 6)) {

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

                }
        }
 }
                }
        }
 }


@@ -194,23 +274,26 @@ static void cgit_parse_args(int argc, const char **argv)
 int main(int argc, const char **argv)
 {
        struct cacheitem item;
 int main(int argc, const char **argv)
 {
        struct cacheitem item;

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

 
 

-       htmlfd = STDOUT_FILENO;
+       cgit_prepare_context(&ctx);

        item.st.st_mtime = time(NULL);
        cgit_repolist.length = 0;
        cgit_repolist.count = 0;
        cgit_repolist.repos = NULL;
 
        item.st.st_mtime = time(NULL);
        cgit_repolist.length = 0;
        cgit_repolist.count = 0;
        cgit_repolist.repos = NULL;
 

-       cgit_read_config("/etc/cgitrc", cgit_global_config_cb);
+       cgit_read_config(cgit_config_env ? cgit_config_env : CGIT_CONFIG,
+                        cgit_global_config_cb);
+       if (getenv("SCRIPT_NAME"))
+               ctx.cfg.script_name = xstrdup(getenv("SCRIPT_NAME"));

        if (getenv("QUERY_STRING"))
        if (getenv("QUERY_STRING"))

-               cgit_querystring = xstrdup(getenv("QUERY_STRING"));
+               ctx.qry.raw = xstrdup(getenv("QUERY_STRING"));

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

-       cgit_parse_query(cgit_querystring, cgit_querystring_cb);
+       cgit_parse_query(ctx.qry.raw, cgit_querystring_cb);

        if (!cgit_prepare_cache(&item))
                return 0;
        if (!cgit_prepare_cache(&item))
                return 0;

-       if (cgit_nocache) {
-               item.fd = STDOUT_FILENO;
-               cgit_fill_cache(&item);
+       if (ctx.cfg.nocache) {
+               cgit_fill_cache(&item, 0);

        } else {
                cgit_check_cache(&item);
                cgit_print_cache(&item);
        } else {
                cgit_check_cache(&item);
                cgit_print_cache(&item);