Fossil

*/
static void tar_add_header(
  const char *zName,     /* Name of the object */
  int nName,             /* Number of characters in zName */
  int iMode,             /* Mode.  0644 or 0755 */
  unsigned int mTime,    /* File modification time */
  int iSize,             /* Size of the object in bytes */
  char cType             /* Type of object:  
                            '0'==file. '2'==symlink. '5'==directory */
){
  /* set mode and modification time */
  sqlite3_snprintf(8, (char*)&tball.aHdr[100], "%07o", iMode);
  sqlite3_snprintf(12, (char*)&tball.aHdr[136], "%011o", mTime);

  /* see if we need to output a Pax Interchange Header */

  const char *zName,      /* Name of directory including final "/" */
  int nName,              /* Characters in zName */
  unsigned int mTime      /* Modification time */
){
  int i;
  for(i=nName-1; i>0 && zName[i]!='/'; i--){}
  if( i<=0 ) return;
  if( i<tball.nPrevDirAlloc 
   && strncmp(tball.zPrevDir, zName, i)==0
   && tball.zPrevDir[i]==0 ) return;
  db_multi_exec("INSERT OR IGNORE INTO dir VALUES('%#q')", i, zName);
  if( sqlite3_changes(g.db)==0 ) return;
  tar_add_directory_of(zName, i-1, mTime);
  tar_add_header(zName, i, 0755, mTime, 0, '5');
  if( i >= tball.nPrevDirAlloc ){

  int n = blob_size(pContent);
  int lastPage;
  char cType = '0';

  /* length check moved to tar_split_path */
  tar_add_directory_of(zName, nName, mTime);

  /* 
   * If we have a symlink, write its destination path (which is stored in
   * pContent) into header, and set content length to 0 to avoid storing path
   * as file content in the next step.  Since 'linkname' header is limited to
   * 100 bytes (-1 byte for terminating zero), if path is greater than that,
   * store symlink as a plain-text file. (Not sure how TAR handles long links.)
   */
  if( mPerm == PERM_LNK && n <= 100 ){
    sqlite3_snprintf(100, (char*)&tball.aHdr[157], "%s", blob_str(pContent));
    cType = '2';
    n = 0;
  }

  tar_add_header(zName, nName, ( mPerm==PERM_EXE ) ? 0755 : 0644, 
                 mTime, n, cType);
  if( n ){
    gzip_step(blob_buffer(pContent), n);
    lastPage = n % 512;
    if( lastPage!=0 ){
      gzip_step(tball.zSpaces, 512 - lastPage);
    }

**
** Generate a GZIP-compressed tarball in the file given by the first argument
** that contains files given in the second and subsequent arguments.
*/
void test_tarball_cmd(void){
  int i;
  Blob zip;
  Blob file;
  if( g.argc<3 ){
    usage("ARCHIVE FILE....");
  }
  sqlite3_open(":memory:", &g.db);
  tar_begin(-1);
  for(i=3; i<g.argc; i++){

    blob_zero(&file);
    blob_read_from_file(&file, g.argv[i]);
    tar_add_file(g.argv[i], &file,
                 file_wd_perm(g.argv[i]), file_wd_mtime(g.argv[i]));
    blob_reset(&file);
  }
  tar_finish(&zip);
  blob_write_to_file(&zip, g.argv[2]);
}

/*

** Return that tarball as the HTTP reply content.
**
** Optional URL Parameters:
**
** - name=NAME[.tar.gz] is base name of the output file. Defaults to
** something project/version-specific. The prefix of the name, up to
** the last '.', are used as the top-most directory name in the tar
** output. 
**
** - uuid=the version to tar (may be a tag/branch name).
** Defaults to "trunk".
**
*/
void tarball_page(void){
  int rid;