3 files changed, 14 insertions, 4 deletions

diff --git a/cgit.h b/cgit.h
index ea90833..c99d337 100644
--- a/cgit.h
+++ b/cgit.h
@@ -1,244 +1,245 @@
 #ifndef CGIT_H
 #define CGIT_H
 
 
 #include <git-compat-util.h>
 #include <cache.h>
 #include <grep.h>
 #include <object.h>
 #include <tree.h>
 #include <commit.h>
 #include <tag.h>
 #include <diff.h>
 #include <diffcore.h>
 #include <refs.h>
 #include <revision.h>
 #include <log-tree.h>
 #include <archive.h>
 #include <xdiff/xdiff.h>
 #include <utf8.h>
 
 
 /*
  * Dateformats used on misc. pages
  */
 #define FMT_LONGDATE "%Y-%m-%d %H:%M:%S (%Z)"
 #define FMT_SHORTDATE "%Y-%m-%d"
 #define FMT_ATOMDATE "%Y-%m-%dT%H:%M:%SZ"
 
 
 /*
  * Limits used for relative dates
  */
 #define TM_MIN    60
 #define TM_HOUR  (TM_MIN * 60)
 #define TM_DAY   (TM_HOUR * 24)
 #define TM_WEEK  (TM_DAY * 7)
 #define TM_YEAR  (TM_DAY * 365)
 #define TM_MONTH (TM_YEAR / 12.0)
 
 
 /*
  * Default encoding
  */
 #define PAGE_ENCODING "UTF-8"
 
 typedef void (*configfn)(const char *name, const char *value);
 typedef void (*filepair_fn)(struct diff_filepair *pair);
 typedef void (*linediff_fn)(char *line, int len);
 
 struct cgit_repo {
         char *url;
         char *name;
         char *path;
         char *desc;
         char *owner;
         char *defbranch;
         char *group;
         char *module_link;
         char *readme;
         char *clone_url;
         int snapshots;
         int enable_log_filecount;
         int enable_log_linecount;
+        time_t mtime;
 };
 
 struct cgit_repolist {
         int length;
         int count;
         struct cgit_repo *repos;
 };
 
 struct commitinfo {
         struct commit *commit;
         char *author;
         char *author_email;
         unsigned long author_date;
         char *committer;
         char *committer_email;
         unsigned long committer_date;
         char *subject;
         char *msg;
         char *msg_encoding;
 };
 
 struct taginfo {
         char *tagger;
         char *tagger_email;
         unsigned long tagger_date;
         char *msg;
 };
 
 struct refinfo {
         const char *refname;
         struct object *object;
         union {
                 struct taginfo *tag;
                 struct commitinfo *commit;
         };
 };
 
 struct reflist {
         struct refinfo **refs;
         int alloc;
         int count;
 };
 
 struct cgit_query {
         int has_symref;
         int has_sha1;
         char *raw;
         char *repo;
         char *page;
         char *search;
         char *grep;
         char *head;
         char *sha1;
         char *sha2;
         char *path;
         char *name;
         char *mimetype;
         char *url;
         int   ofs;
         int nohead;
         char *sort;
 };
 
 struct cgit_config {
         char *agefile;
         char *cache_root;
         char *clone_prefix;
         char *css;
         char *favicon;
         char *footer;
         char *index_header;
         char *index_info;
         char *logo;
         char *logo_link;
         char *module_link;
         char *repo_group;
         char *robots;
         char *root_title;
         char *root_desc;
         char *root_readme;
         char *script_name;
         char *virtual_root;
         int cache_size;
         int cache_dynamic_ttl;
         int cache_max_create_time;
         int cache_repo_ttl;
         int cache_root_ttl;
         int cache_static_ttl;
         int enable_index_links;
         int enable_log_filecount;
         int enable_log_linecount;
         int local_time;
         int max_repo_count;
         int max_commit_count;
         int max_lock_attempts;
         int max_msg_len;
         int max_repodesc_len;
         int nocache;
         int renamelimit;
         int snapshots;
         int summary_branches;
         int summary_log;
         int summary_tags;
 };
 
 struct cgit_page {
         time_t modified;
         time_t expires;
         size_t size;
         char *mimetype;
         char *charset;
         char *filename;
         char *title;
 };
 
 struct cgit_context {
         struct cgit_query qry;
         struct cgit_config cfg;
         struct cgit_repo *repo;
         struct cgit_page page;
 };
 
 struct cgit_snapshot_format {
         const char *suffix;
         const char *mimetype;
         write_archive_fn_t write_func;
         int bit;
 };
 
 extern const char *cgit_version;
 
 extern struct cgit_repolist cgit_repolist;
 extern struct cgit_context ctx;
 extern const struct cgit_snapshot_format cgit_snapshot_formats[];
 
 extern struct cgit_repo *cgit_add_repo(const char *url);
 extern struct cgit_repo *cgit_get_repoinfo(const char *url);
 extern void cgit_repo_config_cb(const char *name, const char *value);
 
 extern int chk_zero(int result, char *msg);
 extern int chk_positive(int result, char *msg);
 extern int chk_non_negative(int result, char *msg);
 
 extern char *trim_end(const char *str, char c);
 extern char *strlpart(char *txt, int maxlen);
 extern char *strrpart(char *txt, int maxlen);
 
 extern void cgit_add_ref(struct reflist *list, struct refinfo *ref);
 extern int cgit_refs_cb(const char *refname, const unsigned char *sha1,
                         int flags, void *cb_data);
 
 extern void *cgit_free_commitinfo(struct commitinfo *info);
 
 extern int cgit_diff_files(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
                            linediff_fn fn);
 
 extern void cgit_diff_tree(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
                            filepair_fn fn, const char *prefix);
 
 extern void cgit_diff_commit(struct commit *commit, filepair_fn fn);
 
 extern char *fmt(const char *format,...);
 
 extern struct commitinfo *cgit_parse_commit(struct commit *commit);
 extern struct taginfo *cgit_parse_tag(struct tag *tag);
 extern void cgit_parse_url(const char *url);
 
 extern const char *cgit_repobasename(const char *reponame);
 
 extern int cgit_parse_snapshots_mask(const char *str);
 
 /* libgit.a either links against or compiles its own implementation of
  * strcasestr(), and we'd like to reuse it. Simply re-declaring it
  * seems to do the trick.
  */
 extern char *strcasestr(const char *haystack, const char *needle);
 
 
 #endif /* CGIT_H */
diff --git a/shared.c b/shared.c
index f5875e4..89d1bab 100644
--- a/shared.c
+++ b/shared.c
@@ -1,254 +1,255 @@
 /* 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 cgit_repolist cgit_repolist;
 struct cgit_context ctx;
 int cgit_cmd;
 
 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 cgit_repo *cgit_add_repo(const char *url)
 {
         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 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 = ctx.cfg.repo_group;
         ret->defbranch = "master";
         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;
+        ret->mtime = -1;
         return ret;
 }
 
 struct cgit_repo *cgit_get_repoinfo(const char *url)
 {
         int i;
         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_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;
 }
 
 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;
diff --git a/ui-repolist.c b/ui-repolist.c
index cf27cb3..aa743bf 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -1,239 +1,247 @@
 /* ui-repolist.c: functions for generating the repolist page
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include <time.h>
 
 #include "cgit.h"
 #include "html.h"
 #include "ui-shared.h"
 
 time_t read_agefile(char *path)
 {
         FILE *f;
         static char buf[64], buf2[64];
 
         if (!(f = fopen(path, "r")))
                 return -1;
         if (fgets(buf, sizeof(buf), f) == NULL)
                 return -1;
         fclose(f);
         if (parse_date(buf, buf2, sizeof(buf2)))
                 return strtoul(buf2, NULL, 10);
         else
                 return 0;
 }
 
 static int get_repo_modtime(const struct cgit_repo *repo, time_t *mtime)
 {
         char *path;
         struct stat s;
+        struct cgit_repo *r = (struct cgit_repo *)repo;
 
+        if (repo->mtime != -1) {
+                *mtime = repo->mtime;
+                return 1;
+        }
         path = fmt("%s/%s", repo->path, ctx.cfg.agefile);
         if (stat(path, &s) == 0) {
                 *mtime = read_agefile(path);
+                r->mtime = *mtime;
                 return 1;
         }
 
         path = fmt("%s/refs/heads/%s", repo->path, repo->defbranch);
-        if (stat(path, &s) == 0) {
+        if (stat(path, &s) == 0)
                 *mtime = s.st_mtime;
-                return 1;
-        }
-        return 0;
+        else
+                *mtime = 0;
+
+        r->mtime = *mtime;
+        return (r->mtime != 0);
 }
 
 static void print_modtime(struct cgit_repo *repo)
 {
         time_t t;
         if (get_repo_modtime(repo, &t))
                 cgit_print_age(t, -1, NULL);
 }
 
 int is_match(struct cgit_repo *repo)
 {
         if (!ctx.qry.search)
                 return 1;
         if (repo->url && strcasestr(repo->url, ctx.qry.search))
                 return 1;
         if (repo->name && strcasestr(repo->name, ctx.qry.search))
                 return 1;
         if (repo->desc && strcasestr(repo->desc, ctx.qry.search))
                 return 1;
         if (repo->owner && strcasestr(repo->owner, ctx.qry.search))
                 return 1;
         return 0;
 }
 
 int is_in_url(struct cgit_repo *repo)
 {
         if (!ctx.qry.url)
                 return 1;
         if (repo->url && !prefixcmp(repo->url, ctx.qry.url))
                 return 1;
         return 0;
 }
 
 void print_sort_header(const char *title, const char *sort)
 {
         htmlf("<th class='left'><a href='./?s=%s", sort);
         if (ctx.qry.search) {
                 html("&q=");
                 html_url_arg(ctx.qry.search);
         }
         htmlf("'>%s</a></th>", title);
 }
 
 void print_header(int columns)
 {
         html("<tr class='nohover'>");
         print_sort_header("Name", "name");
         print_sort_header("Description", "desc");
         print_sort_header("Owner", "owner");
         print_sort_header("Idle", "idle");
         if (ctx.cfg.enable_index_links)
                 html("<th class='left'>Links</th>");
         html("</tr>\n");
 }
 
 
 void print_pager(int items, int pagelen, char *search)
 {
         int i;
         html("<div class='pager'>");
         for(i = 0; i * pagelen < items; i++)
                 cgit_index_link(fmt("[%d]", i+1), fmt("Page %d", i+1), NULL,
                                 search, i * pagelen);
         html("</div>");
 }
 
 static int cmp(const char *s1, const char *s2)
 {
         if (s1 && s2)
                 return strcmp(s1, s2);
         if (s1 && !s2)
                 return -1;
         if (s2 && !s1)
                 return 1;
         return 0;
 }
 
 static int sort_name(const void *a, const void *b)
 {
         const struct cgit_repo *r1 = a;
         const struct cgit_repo *r2 = b;
 
         return cmp(r1->name, r2->name);
 }
 
 static int sort_desc(const void *a, const void *b)
 {
         const struct cgit_repo *r1 = a;
         const struct cgit_repo *r2 = b;
 
         return cmp(r1->desc, r2->desc);
 }
 
 static int sort_owner(const void *a, const void *b)
 {
         const struct cgit_repo *r1 = a;
         const struct cgit_repo *r2 = b;
 
         return cmp(r1->owner, r2->owner);
 }
 
 static int sort_idle(const void *a, const void *b)
 {
         const struct cgit_repo *r1 = a;
         const struct cgit_repo *r2 = b;
         time_t t1, t2;
 
         t1 = t2 = 0;
         get_repo_modtime(r1, &t1);
         get_repo_modtime(r2, &t2);
         return t2 - t1;
 }
 
 struct sortcolumn {
         const char *name;
         int (*fn)(const void *a, const void *b);
 };
 
 struct sortcolumn sortcolumn[] = {
         {"name", sort_name},
         {"desc", sort_desc},
         {"owner", sort_owner},
         {"idle", sort_idle},
         {NULL, NULL}
 };
 
 int sort_repolist(char *field)
 {
         struct sortcolumn *column;
 
         for (column = &sortcolumn[0]; column->name; column++) {
                 if (strcmp(field, column->name))
                         continue;
                 qsort(cgit_repolist.repos, cgit_repolist.count,
                         sizeof(struct cgit_repo), column->fn);
                 return 1;
         }
         return 0;
 }
 
 
 void cgit_print_repolist()
 {
         int i, columns = 4, hits = 0, header = 0;
         char *last_group = NULL;
         int sorted = 0;
 
         if (ctx.cfg.enable_index_links)
                 columns++;
 
         ctx.page.title = ctx.cfg.root_title;
         cgit_print_http_headers(&ctx);
         cgit_print_docstart(&ctx);
         cgit_print_pageheader(&ctx);
 
         if (ctx.cfg.index_header)
                 html_include(ctx.cfg.index_header);
 
         if(ctx.qry.sort)
                 sorted = sort_repolist(ctx.qry.sort);
 
         html("<table summary='repository list' class='list nowrap'>");
         for (i=0; i<cgit_repolist.count; i++) {
                 ctx.repo = &cgit_repolist.repos[i];
                 if (!(is_match(ctx.repo) && is_in_url(ctx.repo)))
                         continue;
                 hits++;
                 if (hits <= ctx.qry.ofs)
                         continue;
                 if (hits > ctx.qry.ofs + ctx.cfg.max_repo_count)
                         continue;
                 if (!header++)
                         print_header(columns);
                 if (!sorted &&
                     ((last_group == NULL && ctx.repo->group != NULL) ||
                     (last_group != NULL && ctx.repo->group == NULL) ||
                     (last_group != NULL && ctx.repo->group != NULL &&
                      strcmp(ctx.repo->group, last_group)))) {
                         htmlf("<tr class='nohover'><td colspan='%d' class='repogroup'>",
                               columns);
                         html_txt(ctx.repo->group);
                         html("</td></tr>");
                         last_group = ctx.repo->group;
                 }
                 htmlf("<tr><td class='%s'>",
                       !sorted && ctx.repo->group ? "sublevel-repo" : "toplevel-repo");
                 cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL);
                 html("</td><td>");
                 html_link_open(cgit_repourl(ctx.repo->url), NULL, NULL);
                 html_ntxt(ctx.cfg.max_repodesc_len, ctx.repo->desc);
                 html_link_close();
                 html("</td><td>");