Merge branch 'lh/cleanup'

* lh/cleanup: (21 commits)
  Reset ctx.repo to NULL when the config parser is finished
  Move cgit_parse_query() from parsing.c to html.c as http_parse_querystring()
  Move function for configfile parsing into configfile.[ch]
  Add cache.h
  Remove global and obsolete cgit_cmd
  Makefile: copy the QUIET constructs from the Makefile in git.git
  Move cgit_version from shared.c to cgit.c
  Makefile: autobuild dependency rules
  Initial Makefile cleanup
  Move non-generic functions from shared.c to cgit.c
  Add ui-shared.h
  Add separate header-files for each page/view
  Refactor snapshot support
  Add command dispatcher
  Remove obsolete cacheitem parameter to ui-functions
  Add struct cgit_page to cgit_context
  Introduce html.h
  Improve initialization of git directory
  Move cgit_repo into cgit_context
  Add all config variables into struct cgit_context
  ...

1 files changed, 40 insertions, 217 deletions

diff --git a/shared.c b/shared.c
index f063894..f5875e4 100644
--- a/shared.c
+++ b/shared.c
@@ -1,521 +1,344 @@
 /* shared.c: global vars + some callback functions
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
-struct repolist cgit_repolist;
-struct repoinfo *cgit_repo;
+struct cgit_repolist cgit_repolist;
+struct cgit_context ctx;
 int cgit_cmd;
 
-const char *cgit_version = CGIT_VERSION;
-
-char *cgit_root_title   = "Git repository browser";
-char *cgit_css          = "/cgit.css";
-char *cgit_logo         = "/git-logo.png";
-char *cgit_index_header = NULL;
-char *cgit_index_info   = NULL;
-char *cgit_logo_link    = "http://www.kernel.org/pub/software/scm/git/docs/";
-char *cgit_module_link  = "./?repo=%s&page=commit&id=%s";
-char *cgit_agefile      = "info/web/last-modified";
-char *cgit_virtual_root = NULL;
-char *cgit_script_name  = CGIT_SCRIPT_NAME;
-char *cgit_cache_root   = CGIT_CACHE_ROOT;
-char *cgit_repo_group   = NULL;
-char *cgit_robots       = "index, nofollow";
-char *cgit_clone_prefix = NULL;
-
-int cgit_nocache               =  0;
-int cgit_snapshots             =  0;
-int cgit_enable_index_links    =  0;
-int cgit_enable_log_filecount  =  0;
-int cgit_enable_log_linecount  =  0;
-int cgit_max_lock_attempts     =  5;
-int cgit_cache_root_ttl        =  5;
-int cgit_cache_repo_ttl        =  5;
-int cgit_cache_dynamic_ttl     =  5;
-int cgit_cache_static_ttl      = -1;
-int cgit_cache_max_create_time =  5;
-int cgit_summary_log           =  0;
-int cgit_summary_tags          =  0;
-int cgit_summary_branches      =  0;
-int cgit_renamelimit           = -1;
-
-int cgit_max_msg_len = 60;
-int cgit_max_repodesc_len = 60;
-int cgit_max_commit_count = 50;
-
-int cgit_query_has_symref = 0;
-int cgit_query_has_sha1   = 0;
-
-char *cgit_querystring  = NULL;
-char *cgit_query_repo   = NULL;
-char *cgit_query_page   = NULL;
-char *cgit_query_head   = NULL;
-char *cgit_query_search = NULL;
-char *cgit_query_grep   = NULL;
-char *cgit_query_sha1   = NULL;
-char *cgit_query_sha2   = NULL;
-char *cgit_query_path   = NULL;
-char *cgit_query_name   = NULL;
-int   cgit_query_ofs    = 0;
-
-int htmlfd = 0;
-
-
-int cgit_get_cmd_index(const char *cmd)
-{
-        static char *cmds[] = {"log", "commit", "diff", "tree", "blob",
-                               "snapshot", "tag", "refs", "patch", NULL};
-        int i;
-
-        for(i = 0; cmds[i]; i++)
-                if (!strcmp(cmd, cmds[i]))
-                        return i + 1;
-        return 0;
-}
-
 int chk_zero(int result, char *msg)
 {
         if (result != 0)
                 die("%s: %s", msg, strerror(errno));
         return result;
 }
 
 int chk_positive(int result, char *msg)
 {
         if (result <= 0)
                 die("%s: %s", msg, strerror(errno));
         return result;
 }
 
 int chk_non_negative(int result, char *msg)
 {
             if (result < 0)
                     die("%s: %s",msg, strerror(errno));
         return result;
 }
 
-struct repoinfo *add_repo(const char *url)
+struct cgit_repo *cgit_add_repo(const char *url)
 {
-        struct repoinfo *ret;
+        struct cgit_repo *ret;
 
         if (++cgit_repolist.count > cgit_repolist.length) {
                 if (cgit_repolist.length == 0)
                         cgit_repolist.length = 8;
                 else
                         cgit_repolist.length *= 2;
                 cgit_repolist.repos = xrealloc(cgit_repolist.repos,
                                                cgit_repolist.length *
-                                               sizeof(struct repoinfo));
+                                               sizeof(struct cgit_repo));
         }
 
         ret = &cgit_repolist.repos[cgit_repolist.count-1];
         ret->url = trim_end(url, '/');
         ret->name = ret->url;
         ret->path = NULL;
         ret->desc = "[no description]";
         ret->owner = NULL;
-        ret->group = cgit_repo_group;
+        ret->group = ctx.cfg.repo_group;
         ret->defbranch = "master";
-        ret->snapshots = cgit_snapshots;
-        ret->enable_log_filecount = cgit_enable_log_filecount;
-        ret->enable_log_linecount = cgit_enable_log_linecount;
-        ret->module_link = cgit_module_link;
+        ret->snapshots = ctx.cfg.snapshots;
+        ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
+        ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
+        ret->module_link = ctx.cfg.module_link;
         ret->readme = NULL;
         return ret;
 }
 
-struct repoinfo *cgit_get_repoinfo(const char *url)
+struct cgit_repo *cgit_get_repoinfo(const char *url)
 {
         int i;
-        struct repoinfo *repo;
+        struct cgit_repo *repo;
 
         for (i=0; i<cgit_repolist.count; i++) {
                 repo = &cgit_repolist.repos[i];
                 if (!strcmp(repo->url, url))
                         return repo;
         }
         return NULL;
 }
 
-void cgit_global_config_cb(const char *name, const char *value)
-{
-        if (!strcmp(name, "root-title"))
-                cgit_root_title = xstrdup(value);
-        else if (!strcmp(name, "css"))
-                cgit_css = xstrdup(value);
-        else if (!strcmp(name, "logo"))
-                cgit_logo = xstrdup(value);
-        else if (!strcmp(name, "index-header"))
-                cgit_index_header = xstrdup(value);
-        else if (!strcmp(name, "index-info"))
-                cgit_index_info = xstrdup(value);
-        else if (!strcmp(name, "logo-link"))
-                cgit_logo_link = xstrdup(value);
-        else if (!strcmp(name, "module-link"))
-                cgit_module_link = xstrdup(value);
-        else if (!strcmp(name, "virtual-root")) {
-                cgit_virtual_root = trim_end(value, '/');
-                if (!cgit_virtual_root && (!strcmp(value, "/")))
-                        cgit_virtual_root = "";
-        } else if (!strcmp(name, "nocache"))
-                cgit_nocache = atoi(value);
-        else if (!strcmp(name, "snapshots"))
-                cgit_snapshots = cgit_parse_snapshots_mask(value);
-        else if (!strcmp(name, "enable-index-links"))
-                cgit_enable_index_links = atoi(value);
-        else if (!strcmp(name, "enable-log-filecount"))
-                cgit_enable_log_filecount = atoi(value);
-        else if (!strcmp(name, "enable-log-linecount"))
-                cgit_enable_log_linecount = atoi(value);
-        else if (!strcmp(name, "cache-root"))
-                cgit_cache_root = xstrdup(value);
-        else if (!strcmp(name, "cache-root-ttl"))
-                cgit_cache_root_ttl = atoi(value);
-        else if (!strcmp(name, "cache-repo-ttl"))
-                cgit_cache_repo_ttl = atoi(value);
-        else if (!strcmp(name, "cache-static-ttl"))
-                cgit_cache_static_ttl = atoi(value);
-        else if (!strcmp(name, "cache-dynamic-ttl"))
-                cgit_cache_dynamic_ttl = atoi(value);
-        else if (!strcmp(name, "max-message-length"))
-                cgit_max_msg_len = atoi(value);
-        else if (!strcmp(name, "max-repodesc-length"))
-                cgit_max_repodesc_len = atoi(value);
-        else if (!strcmp(name, "max-commit-count"))
-                cgit_max_commit_count = atoi(value);
-        else if (!strcmp(name, "summary-log"))
-                cgit_summary_log = atoi(value);
-        else if (!strcmp(name, "summary-branches"))
-                cgit_summary_branches = atoi(value);
-        else if (!strcmp(name, "summary-tags"))
-                cgit_summary_tags = atoi(value);
-        else if (!strcmp(name, "agefile"))
-                cgit_agefile = xstrdup(value);
-        else if (!strcmp(name, "renamelimit"))
-                cgit_renamelimit = atoi(value);
-        else if (!strcmp(name, "robots"))
-                cgit_robots = xstrdup(value);
-        else if (!strcmp(name, "clone-prefix"))
-                cgit_clone_prefix = xstrdup(value);
-        else if (!strcmp(name, "repo.group"))
-                cgit_repo_group = xstrdup(value);
-        else if (!strcmp(name, "repo.url"))
-                cgit_repo = add_repo(value);
-        else if (!strcmp(name, "repo.name"))
-                cgit_repo->name = xstrdup(value);
-        else if (cgit_repo && !strcmp(name, "repo.path"))
-                cgit_repo->path = trim_end(value, '/');
-        else if (cgit_repo && !strcmp(name, "repo.clone-url"))
-                cgit_repo->clone_url = xstrdup(value);
-        else if (cgit_repo && !strcmp(name, "repo.desc"))
-                cgit_repo->desc = xstrdup(value);
-        else if (cgit_repo && !strcmp(name, "repo.owner"))
-                cgit_repo->owner = xstrdup(value);
-        else if (cgit_repo && !strcmp(name, "repo.defbranch"))
-                cgit_repo->defbranch = xstrdup(value);
-        else if (cgit_repo && !strcmp(name, "repo.snapshots"))
-                cgit_repo->snapshots = cgit_snapshots & cgit_parse_snapshots_mask(value); /* XXX: &? */
-        else if (cgit_repo && !strcmp(name, "repo.enable-log-filecount"))
-                cgit_repo->enable_log_filecount = cgit_enable_log_filecount * atoi(value);
-        else if (cgit_repo && !strcmp(name, "repo.enable-log-linecount"))
-                cgit_repo->enable_log_linecount = cgit_enable_log_linecount * atoi(value);
-        else if (cgit_repo && !strcmp(name, "repo.module-link"))
-                cgit_repo->module_link= xstrdup(value);
-        else if (cgit_repo && !strcmp(name, "repo.readme") && value != NULL) {
-                if (*value == '/')
-                        cgit_repo->readme = xstrdup(value);
-                else
-                        cgit_repo->readme = xstrdup(fmt("%s/%s", cgit_repo->path, value));
-        } else if (!strcmp(name, "include"))
-                cgit_read_config(value, cgit_global_config_cb);
-}
-
-void cgit_querystring_cb(const char *name, const char *value)
-{
-        if (!strcmp(name,"r")) {
-                cgit_query_repo = xstrdup(value);
-                cgit_repo = cgit_get_repoinfo(value);
-        } else if (!strcmp(name, "p")) {
-                cgit_query_page = xstrdup(value);
-                cgit_cmd = cgit_get_cmd_index(value);
-        } else if (!strcmp(name, "url")) {
-                cgit_parse_url(value);
-        } else if (!strcmp(name, "qt")) {
-                cgit_query_grep = xstrdup(value);
-        } else if (!strcmp(name, "q")) {
-                cgit_query_search = xstrdup(value);
-        } else if (!strcmp(name, "h")) {
-                cgit_query_head = xstrdup(value);
-                cgit_query_has_symref = 1;
-        } else if (!strcmp(name, "id")) {
-                cgit_query_sha1 = xstrdup(value);
-                cgit_query_has_sha1 = 1;
-        } else if (!strcmp(name, "id2")) {
-                cgit_query_sha2 = xstrdup(value);
-                cgit_query_has_sha1 = 1;
-        } else if (!strcmp(name, "ofs")) {
-                cgit_query_ofs = atoi(value);
-        } else if (!strcmp(name, "path")) {
-                cgit_query_path = trim_end(value, '/');
-        } else if (!strcmp(name, "name")) {
-                cgit_query_name = xstrdup(value);
-        }
-}
-
 void *cgit_free_commitinfo(struct commitinfo *info)
 {
         free(info->author);
         free(info->author_email);
         free(info->committer);
         free(info->committer_email);
         free(info->subject);
         free(info->msg);
         free(info->msg_encoding);
         free(info);
         return NULL;
 }
 
-int hextoint(char c)
-{
-        if (c >= 'a' && c <= 'f')
-                return 10 + c - 'a';
-        else if (c >= 'A' && c <= 'F')
-                return 10 + c - 'A';
-        else if (c >= '0' && c <= '9')
-                return c - '0';
-        else
-                return -1;
-}
-
 char *trim_end(const char *str, char c)
 {
         int len;
         char *s, *t;
 
         if (str == NULL)
                 return NULL;
         t = (char *)str;
         len = strlen(t);
         while(len > 0 && t[len - 1] == c)
                 len--;
 
         if (len == 0)
                 return NULL;
 
         c = t[len];
         t[len] = '\0';
         s = xstrdup(t);
         t[len] = c;
         return s;
 }
 
 char *strlpart(char *txt, int maxlen)
 {
         char *result;
 
         if (!txt)
                 return txt;
 
         if (strlen(txt) <= maxlen)
                 return txt;
         result = xmalloc(maxlen + 1);
         memcpy(result, txt, maxlen - 3);
         result[maxlen-1] = result[maxlen-2] = result[maxlen-3] = '.';
         result[maxlen] = '\0';
         return result;
 }
 
 char *strrpart(char *txt, int maxlen)
 {
         char *result;
 
         if (!txt)
                 return txt;
 
         if (strlen(txt) <= maxlen)
                 return txt;
         result = xmalloc(maxlen + 1);
         memcpy(result + 3, txt + strlen(txt) - maxlen + 4, maxlen - 3);
         result[0] = result[1] = result[2] = '.';
         return result;
 }
 
 void cgit_add_ref(struct reflist *list, struct refinfo *ref)
 {
         size_t size;
 
         if (list->count >= list->alloc) {
                 list->alloc += (list->alloc ? list->alloc : 4);
                 size = list->alloc * sizeof(struct refinfo *);
                 list->refs = xrealloc(list->refs, size);
         }
         list->refs[list->count++] = ref;
 }
 
 struct refinfo *cgit_mk_refinfo(const char *refname, const unsigned char *sha1)
 {
         struct refinfo *ref;
 
         ref = xmalloc(sizeof (struct refinfo));
         ref->refname = xstrdup(refname);
         ref->object = parse_object(sha1);
         switch (ref->object->type) {
         case OBJ_TAG:
                 ref->tag = cgit_parse_tag((struct tag *)ref->object);
                 break;
         case OBJ_COMMIT:
                 ref->commit = cgit_parse_commit((struct commit *)ref->object);
                 break;
         }
         return ref;
 }
 
 int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags,
                   void *cb_data)
 {
         struct reflist *list = (struct reflist *)cb_data;
         struct refinfo *info = cgit_mk_refinfo(refname, sha1);
 
         if (info)
                 cgit_add_ref(list, info);
         return 0;
 }
 
 void cgit_diff_tree_cb(struct diff_queue_struct *q,
                        struct diff_options *options, void *data)
 {
         int i;
 
         for (i = 0; i < q->nr; i++) {
                 if (q->queue[i]->status == 'U')
                         continue;
                 ((filepair_fn)data)(q->queue[i]);
         }
 }
 
 static int load_mmfile(mmfile_t *file, const unsigned char *sha1)
 {
         enum object_type type;
 
         if (is_null_sha1(sha1)) {
                 file->ptr = (char *)"";
                 file->size = 0;
         } else {
                 file->ptr = read_sha1_file(sha1, &type, 
                                            (unsigned long *)&file->size);
         }
         return 1;
 }
 
 /*
  * Receive diff-buffers from xdiff and concatenate them as
  * needed across multiple callbacks.
  *
  * This is basically a copy of xdiff-interface.c/xdiff_outf(),
  * ripped from git and modified to use globals instead of
  * a special callback-struct.
  */
 char *diffbuf = NULL;
 int buflen = 0;
 
 int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
 {
         int i;
 
         for (i = 0; i < nbuf; i++) {
                 if (mb[i].ptr[mb[i].size-1] != '\n') {
                         /* Incomplete line */
                         diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
                         memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
                         buflen += mb[i].size;
                         continue;
                 }
 
                 /* we have a complete line */
                 if (!diffbuf) {
                         ((linediff_fn)priv)(mb[i].ptr, mb[i].size);
                         continue;
                 }
                 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
                 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
                 ((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
                 free(diffbuf);
                 diffbuf = NULL;
                 buflen = 0;
         }
         if (diffbuf) {
                 ((linediff_fn)priv)(diffbuf, buflen);
                 free(diffbuf);
                 diffbuf = NULL;
                 buflen = 0;
         }
         return 0;
 }
 
 int cgit_diff_files(const unsigned char *old_sha1,
                      const unsigned char *new_sha1,
                      linediff_fn fn)
 {
         mmfile_t file1, file2;
         xpparam_t diff_params;
         xdemitconf_t emit_params;
         xdemitcb_t emit_cb;
 
         if (!load_mmfile(&file1, old_sha1) || !load_mmfile(&file2, new_sha1))
                 return 1;
 
         diff_params.flags = XDF_NEED_MINIMAL;
         emit_params.ctxlen = 3;
         emit_params.flags = XDL_EMIT_FUNCNAMES;
         emit_params.find_func = NULL;
         emit_cb.outf = filediff_cb;
         emit_cb.priv = fn;
         xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
         return 0;
 }
 
 void cgit_diff_tree(const unsigned char *old_sha1,
                     const unsigned char *new_sha1,
                     filepair_fn fn, const char *prefix)
 {
         struct diff_options opt;
         int ret;
         int prefixlen;
 
         diff_setup(&opt);
         opt.output_format = DIFF_FORMAT_CALLBACK;
         opt.detect_rename = 1;
-        opt.rename_limit = cgit_renamelimit;
+        opt.rename_limit = ctx.cfg.renamelimit;
         DIFF_OPT_SET(&opt, RECURSIVE);
         opt.format_callback = cgit_diff_tree_cb;
         opt.format_callback_data = fn;
         if (prefix) {
                 opt.nr_paths = 1;
                 opt.paths = &prefix;
                 prefixlen = strlen(prefix);
                 opt.pathlens = &prefixlen;
         }
         diff_setup_done(&opt);
 
         if (old_sha1 && !is_null_sha1(old_sha1))
                 ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
         else
                 ret = diff_root_tree_sha1(new_sha1, "", &opt);
         diffcore_std(&opt);
         diff_flush(&opt);
 }
 
 void cgit_diff_commit(struct commit *commit, filepair_fn fn)
 {
         unsigned char *old_sha1 = NULL;
 
         if (commit->parents)
                 old_sha1 = commit->parents->item->object.sha1;
         cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL);
 }
+
+int cgit_parse_snapshots_mask(const char *str)
+{
+        const struct cgit_snapshot_format *f;
+        static const char *delim = " \t,:/|;";
+        int tl, sl, rv = 0;
+
+        /* favor legacy setting */
+        if(atoi(str))
+                return 1;
+        for(;;) {
+                str += strspn(str,delim);
+                tl = strcspn(str,delim);
+                if (!tl)
+                        break;
+                for (f = cgit_snapshot_formats; f->suffix; f++) {
+                        sl = strlen(f->suffix);
+                        if((tl == sl && !strncmp(f->suffix, str, tl)) ||
+                           (tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) {
+                                rv |= f->bit;
+                                break;
+                        }
+                }
+                str += tl;
+        }
+        return rv;
+}