Fossil

/*
** Given the RID for a manifest, construct a ZIP archive containing
** all files in the corresponding baseline.
**
** If RID is for an object that is not a real manifest, then the
** resulting ZIP archive contains a single file which is the RID
** object.  The pInclude and pExclude parameters are ignored in this case.
**
** If the RID object does not exist in the repository, then
** pZip is zeroed.
**
** zDir is a "synthetic" subdirectory which all zipped files get
** added to as part of the zip file. It may be 0 or an empty string,
** in which case it is ignored. The intention is to create a zip which
** politely expands into a subdir instead of filling your current dir
** with source files. For example, pass a UUID or "ProjectName".
**
*/
void zip_of_checkin(
  int rid,            /* The RID of the checkin to construct the ZIP archive from */
  Blob *pZip,         /* Write the ZIP archive content into this blob */
  const char *zDir,   /* Top-level directory of the ZIP archive */
  Glob *pInclude,     /* Only include files that match this pattern */
  Glob *pExclude      /* Exclude files that match this pattern */ 
){
  Blob mfile, hash, file;
  Manifest *pManifest;
  ManifestFile *pFile;
  Blob filename;
  int nPrefix;

  content_get(rid, &mfile);

  if( zDir && zDir[0] ){
    blob_appendf(&filename, "%s/", zDir);
  }
  nPrefix = blob_size(&filename);

  pManifest = manifest_get(rid, CFTYPE_MANIFEST, 0);
  if( pManifest ){
    int flg, eflg = 0;
    char *zName;
    zip_set_timedate(pManifest->rDate);
    flg = db_get_manifest_setting();
    if( flg ){
      /* eflg is the effective flags, taking include/exclude into account */
      if( (pInclude==0 || glob_match(pInclude, "manifest"))
       && !glob_match(pExclude, "manifest")
       && (flg & MFESTFLG_RAW) ){
        eflg |= MFESTFLG_RAW;
      }
      if( (pInclude==0 || glob_match(pInclude, "manifest.uuid"))
       && !glob_match(pExclude, "manifest.uuid")
       && (flg & MFESTFLG_UUID) ){
        eflg |= MFESTFLG_UUID;
      }
      if( (pInclude==0 || glob_match(pInclude, "manifest.tags"))
       && !glob_match(pExclude, "manifest.tags")
       && (flg & MFESTFLG_TAGS) ){
        eflg |= MFESTFLG_TAGS;
      }

      if( eflg & (MFESTFLG_RAW|MFESTFLG_UUID) ){
        if( eflg & MFESTFLG_RAW ){
          blob_append(&filename, "manifest", -1);
          zName = blob_str(&filename);
          zip_add_folders(zName);
        }
        if( eflg & MFESTFLG_UUID ){
          sha1sum_blob(&mfile, &hash);
        }
        if( eflg & MFESTFLG_RAW ){
          sterilize_manifest(&mfile);
          zip_add_file(zName, &mfile, 0);
        }
      }
      blob_reset(&mfile);
      if( eflg & MFESTFLG_UUID ){
        blob_append(&hash, "\n", 1);
        blob_resize(&filename, nPrefix);
        blob_append(&filename, "manifest.uuid", -1);
        zName = blob_str(&filename);
        zip_add_folders(zName);
        zip_add_file(zName, &hash, 0);
        blob_reset(&hash);
      }
      if( eflg & MFESTFLG_TAGS ){
        Blob tagslist;
        blob_zero(&tagslist);
        get_checkin_taglist(rid, &tagslist);
        blob_resize(&filename, nPrefix);
        blob_append(&filename, "manifest.tags", -1);
        zName = blob_str(&filename);
        zip_add_folders(zName);
        zip_add_file(zName, &tagslist, 0);
        blob_reset(&tagslist);
      }
    }
    manifest_file_rewind(pManifest);
    while( (pFile = manifest_file_next(pManifest,0))!=0 ){
      int fid;
      if( pInclude!=0 && !glob_match(pInclude, pFile->zName) ) continue;
      if( glob_match(pExclude, pFile->zName) ) continue;
      fid = uuid_to_rid(pFile->zUuid, 0);
      if( fid ){
        content_get(fid, &file);
        blob_resize(&filename, nPrefix);
        blob_append(&filename, pFile->zName, -1);
        zName = blob_str(&filename);
        zip_add_folders(zName);
        zip_add_file(zName, &file, manifest_file_mperm(pFile));

  blob_reset(&filename);
  zip_close(pZip);
}

/*
** COMMAND: zip*
**
** Usage: %fossil zip VERSION OUTPUTFILE [OPTIONS]
**
** Generate a ZIP archive for a check-in.  If the --name option is
** used, its argument becomes the name of the top-level directory in the
** resulting ZIP archive.  If --name is omitted, the top-level directory
** named is derived from the project name, the check-in date and time, and
** the artifact ID of the check-in.
**
** The GLOBLIST argument to --exclude and --include can be a comma-separated
** list of glob patterns, where each glob pattern may optionally be enclosed
** in "..." or '...' so that it may contain commas.  If a file matches both
** --include and --exclude then it is excluded.
**
** Options:
**   -X|--exclude GLOBLIST   Comma-separated list of GLOBs of files to exclude
**   --include GLOBLIST      Comma-separated list of GLOBs of files to include
**   --name DIRECTORYNAME    The name of the top-level directory in the archive
**   -R REPOSITORY           Specify a Fossil repository
*/
void zip_cmd(void){
  int rid;
  Blob zip;
  const char *zName;
  Glob *pInclude = 0;
  Glob *pExclude = 0;
  const char *zInclude;
  const char *zExclude;
  zName = find_option("name", 0, 1);
  zExclude = find_option("exclude", "X", 1);
  if( zExclude ) pExclude = glob_create(zExclude);
  zInclude = find_option("include", 0, 1);
  if( zInclude ) pInclude = glob_create(zInclude);
  db_find_and_open_repository(0, 0);

  /* We should be done with options.. */
  verify_all_options();

  if( g.argc!=4 ){
    usage("VERSION OUTPUTFILE");
  }
  rid = name_to_typed_rid(g.argv[2],"ci");
  if( zName==0 ){
    zName = db_text("default-name",
       "SELECT replace(%Q,' ','_') "
          " || strftime('_%%Y-%%m-%%d_%%H%%M%%S_', event.mtime) "
          " || substr(blob.uuid, 1, 10)"
       "  FROM event, blob"
       " WHERE event.objid=%d"
       "   AND blob.rid=%d",
       db_get("project-name", "unnamed"), rid, rid
    );
  }
  zip_of_checkin(rid, &zip, zName, pInclude, pExclude);
  blob_write_to_file(&zip, g.argv[3]);
  glob_free(pInclude);
  glob_free(pExclude);
}

/*
** WEBPAGE: zip
** URL: /zip
**
** Generate a ZIP archive for a checkin specified by the uuid= query parameter.
** Return that ZIP archive as the HTTP reply content.
**
** Query parameters:
**
**   name=NAME[.tar.gz]  The base name of the output file.  The default
**                       value is a configuration parameter in the project
**                       settings.  A prefix of the name, omitting the extension,
**                       is used as the top-most directory name.

**

**   uuid=TAG            The check-in that is turned into a tarball.
**                       Defaults to "trunk".
**
**   in=PATTERN          Only include files that match the comma-separate
**                       list of GLOB patterns in PATTERN, as with ex=
**
**   ex=PATTERN          Omit any file that match PATTERN.  PATTERN is a
**                       comma-separated list of GLOB patterns, where each
**                       pattern can optionally be quoted using ".." or '..'.
**                       Any file matching both ex= and in= is excluded.
*/
void baseline_zip_page(void){
  int rid;
  char *zName, *zRid;
  int nName, nRid;
  Blob zip;
  char *zKey;
  const char *zInclude;         /* The in= query parameter */
  const char *zExclude;         /* The ex= query parameter */
  Blob cacheKey;                /* The key to cache */
  Glob *pInclude = 0;           /* The compiled in= glob pattern */
  Glob *pExclude = 0;           /* The compiled ex= glob pattern */

  login_check_credentials();
  if( !g.perm.Zip ){ login_needed(g.anon.Zip); return; }
  load_control();
  zName = mprintf("%s", PD("name",""));
  nName = strlen(zName);
  zRid = mprintf("%s", PD("uuid","trunk"));
  nRid = strlen(zRid);
  zInclude = P("in");
  if( zInclude ) pInclude = glob_create(zInclude);
  zExclude = P("ex");
  if( zExclude ) pExclude = glob_create(zExclude);
  if( nName>4 && fossil_strcmp(&zName[nName-4], ".zip")==0 ){
    /* Special case:  Remove the ".zip" suffix.  */
    nName -= 4;
    zName[nName] = 0;
  }else{
    /* If the file suffix is not ".zip" then just remove the
    ** suffix up to and including the last "." */

    @ of check-in <b>%h(zRid)</b>:
    @ <input type="submit" value="Download" />
    @ </form>
    style_footer();
    return;
  }
  if( nRid==0 && nName>10 ) zName[10] = 0;

  /* Compute a unique key for the cache entry based on query parameters */
  blob_init(&cacheKey, 0, 0);
  blob_appendf(&cacheKey, "/zip/%z", rid_to_uuid(rid));
  if( zInclude ) blob_appendf(&cacheKey, ",in=%Q", zInclude);
  if( zExclude ) blob_appendf(&cacheKey, ",ex=%Q", zExclude);
  blob_appendf(&cacheKey, "/%q", zName);
  zKey = blob_str(&cacheKey);

  blob_zero(&zip);
  if( cache_read(&zip, zKey)==0 ){
    zip_of_checkin(rid, &zip, zName, pInclude, pExclude);
    cache_write(&zip, zKey);
  }
  fossil_free( zName );
  fossil_free( zRid );
  blob_reset(&cacheKey);
  glob_free(pInclude);
  glob_free(pExclude);
  cgi_set_content(&zip);
  cgi_set_content_type("application/zip");
}