allow selective enabling of snapshots

 snapshot configuration parameter now can be a
 space/slash/comma/colon/semicolon/pipe-separated list of snaphot suffixes as
 listed in ui-snapshot.c

Signed-off-by: Michael Krelin <hacker@klever.net>

1 files changed, 36 insertions, 7 deletions

diff --git a/ui-snapshot.c b/ui-snapshot.c
index 053fd48..d6be55b 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -57,21 +57,25 @@ static const struct snapshot_archive_t {
         const char *suffix;
         const char *mimetype;
         write_archive_fn_t write_func;
+        int bit;
 }       snapshot_archives[] = {
-        { ".zip", "application/x-zip", write_zip_archive },
-        { ".tar.gz", "application/x-tar", write_tar_gzip_archive },
-        { ".tar.bz2", "application/x-tar", write_tar_bzip2_archive },
-        { ".tar", "application/x-tar", write_tar_archive }
+        { ".zip", "application/x-zip", write_zip_archive, 0x1 },
+        { ".tar.gz", "application/x-tar", write_tar_gzip_archive, 0x2 },
+        { ".tar.bz2", "application/x-tar", write_tar_bzip2_archive, 0x4 },
+        { ".tar", "application/x-tar", write_tar_archive, 0x8 }
 };
 
 void cgit_print_snapshot(struct cacheitem *item, const char *hex, 
-                         const char *prefix, const char *filename)
+                         const char *prefix, const char *filename,
+                         int snapshots)
 {
         int fnl = strlen(filename);
         int f;
         for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
                 const struct snapshot_archive_t* sat = &snapshot_archives[f];
-                int sl = strlen(sat->suffix);
+                int sl;
+                if(!(snapshots&sat->bit)) continue;
+                sl = strlen(sat->suffix);
                 if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix))
                         continue;
 
@@ -101,16 +105,41 @@ void cgit_print_snapshot(struct cacheitem *item, const char *hex,
         cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
 }
 
-void cgit_print_snapshot_links(const char *repo,const char *hex)
+void cgit_print_snapshot_links(const char *repo,const char *hex,int snapshots)
 {
         char *filename;
         int f;
         for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
                 const struct snapshot_archive_t* sat = &snapshot_archives[f];
+                if(!(snapshots&sat->bit)) continue;
                 filename = fmt("%s-%s%s",cgit_repobasename(repo),hex,sat->suffix);
                 htmlf("<a href='%s'>%s</a><br/>",
                         cgit_fileurl(repo,"snapshot",filename,
                             fmt("id=%s&amp;name=%s",hex,filename)), filename);
         }
 }
+
+int cgit_parse_snapshots_mask(const char *str)
+{
+        static const char *delim = " \t,:/|;";
+        int f, tl, rv = 0;
+        /* favor legacy setting */
+        if(atoi(str)) return 1;
+        for(;;) {
+                str += strspn(str,delim);
+                tl = strcspn(str,delim);
+                if(!tl)
+                        break;
+                for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
+                        const struct snapshot_archive_t* sat = &snapshot_archives[f];
+                        if(! ( strncmp(sat->suffix,str,tl) && strncmp(sat->suffix+1,str,tl-1) ) ) {
+                                rv |= sat->bit;
+                                break;
+                        }
+                }
+                str += tl;
+        }
+        return rv;
+}
+
 /* vim:set sw=8: */