ui-snapshot.c

   1 /* ui-snapshot.c: generate snapshot of a commit
   2  *
   3  * Copyright (C) 2006 Lars Hjemli
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #include "cgit.h"
  10
  11 static const struct snapshot_archive_t {
  12         const char *suffix;
  13         const char *mimetype;
  14         write_archive_fn_t write_func;
  15 }       snapshot_archives[] = {
  16         { ".zip", "application/x-zip", write_zip_archive },
  17         { ".tar.gz", "application/x-gzip", write_tar_archive }
  18 };
  19
  20 void cgit_print_snapshot(struct cacheitem *item, const char *hex,
  21                          const char *prefix, const char *filename)
  22 {
  23         int fnl = strlen(filename);
  24         int f;
  25         for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
  26                 const struct snapshot_archive_t* sat = &snapshot_archives[f];
  27                 int sl = strlen(sat->suffix);
  28                 if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix))
  29                         continue;
  30
  31                 struct archiver_args args;
  32                 struct commit *commit;
  33                 unsigned char sha1[20];
  34
  35                 if(get_sha1(hex, sha1)) {
  36                         cgit_print_error(fmt("Bad object id: %s", hex));
  37                         return;
  38                 }
  39                 commit = lookup_commit_reference(sha1);
  40
  41                 if(!commit) {
  42                         cgit_print_error(fmt("Not a commit reference: %s", hex));
  43                         return;;
  44                 }
  45
  46                 memset(&args,0,sizeof(args));
  47                 args.base = fmt("%s/", prefix);
  48                 args.tree = commit->tree;
  49
  50                 cgit_print_snapshot_start(sat->mimetype, filename, item);
  51                 (*sat->write_func)(&args);
  52                 return;
  53         }
  54         cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
  55 }
  56
  57 void cgit_print_snapshot_links(const char *repo,const char *hex)
  58 {
  59         char *filename;
  60         int f;
  61         for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
  62                 const struct snapshot_archive_t* sat = &snapshot_archives[f];
  63                 filename = fmt("%s-%s%s",repo,hex,sat->suffix);
  64                 htmlf("<a href='%s'>%s</a><br/>",
  65                         cgit_pageurl(repo,"snapshot",
  66                             fmt("id=%s&amp;name=%s",hex,filename)), filename);
  67         }
  68 }