Fossil

  int allowSymlinks;
  int setmtimeFlag;              /* --setmtime.  Set mtimes on files */
  static char *azNewArgv[] = { 0, "checkout", "--prompt", 0, 0, 0, 0 };
  const char *zWorkDir;          /* --workdir value */
  const char *zRepo = 0;         /* Name of the repository file */
  const char *zRepoDir = 0;      /* --repodir value */
  Blob normalizedRepoName;       /* Normalized repository filename */
  char *zPwd;                    /* Initial working directory */
  int isUri = 0;                 /* True if REPOSITORY is a URI */

  url_proxy_options();
  emptyFlag = find_option("empty",0,0)!=0;
  keepFlag = find_option("keep",0,0)!=0;
  forceMissingFlag = find_option("force-missing",0,0)!=0;
  allowNested = find_option("nested",0,0)!=0;
  setmtimeFlag = find_option("setmtime",0,0)!=0;
  zWorkDir = find_option("workdir",0,1);
  zRepoDir = find_option("repodir",0,1);
  zPwd = file_getcwd(0,0);
  

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

  if( g.argc!=3 && g.argc!=4 ){
    usage("REPOSITORY-FILENAME ?VERSION?");
  }
  zRepo = g.argv[2];
  blob_init(&normalizedRepoName, 0, 0);


  if( sqlite3_strglob("http://*", zRepo)==0
   || sqlite3_strglob("https://*", zRepo)==0
   || sqlite3_strglob("ssh:*", zRepo)==0
   || sqlite3_strglob("file:*", zRepo)==0
  ){







    isUri = 1;
















  }







  /* If --workdir is specified, change to the requested working directory */
  if( zWorkDir ){
    if( !isUri ){
      file_canonical_name(zRepo, &normalizedRepoName, 0);
      zRepo = blob_str(&normalizedRepoName);
    }
    if( file_isdir(zWorkDir, ExtFILE)!=1 ){
      file_mkfolder(zWorkDir, ExtFILE, 0, 0);
      if( file_mkdir(zWorkDir, ExtFILE, 0) ){
        fossil_fatal("cannot create directory %s", zWorkDir);
      }
    }
    if( file_chdir(zWorkDir, 0) ){
      fossil_fatal("unable to make %s the working directory", zWorkDir);
    }
  }

  if( !allowNested && db_open_local(0) ){
    fossil_fatal("already within an open tree rooted at %s", g.zLocalRoot);
  }

  /* If REPOSITORY looks like a URI, then try to clone it first */
  if( isUri ){
    char *zNewBase;   /* Base name of the cloned repository file */
    const char *zUri; /* URI to clone */
    int i;            /* Loop counter */
    int rc;           /* Result code from fossil_system() */
    Blob cmd;         /* Clone command to be run */
    char *zCmd;       /* String version of the clone command */

    zUri = zRepo;
    zNewBase = fossil_strdup(file_tail(zUri));
    for(i=(int)strlen(zNewBase)-1; i>1 && zNewBase[i]!='.'; i--){}
    if( zNewBase[i]=='.' ) zNewBase[i] = 0;
    if( zRepoDir==0 ) zRepoDir = zPwd;
    zRepo = mprintf("%s/%s.fossil", zRepoDir, zNewBase);
    fossil_free(zNewBase);
    blob_init(&cmd, 0, 0);
    blob_append_escaped_arg(&cmd, g.nameOfExe);
    blob_append(&cmd, " clone", -1);
    blob_append_escaped_arg(&cmd, zUri);
    blob_append_escaped_arg(&cmd, zRepo);
    zCmd = blob_str(&cmd);
    fossil_print("%s\n", zCmd);
    if( zWorkDir ) file_chdir(zPwd, 0);
    rc = fossil_system(zCmd);
    if( rc ){
      fossil_fatal("clone of %s failed", zUri);
    }
    blob_reset(&cmd);
    if( zWorkDir ) file_chdir(zWorkDir, 0);
  }else if( zRepoDir ){
    fossil_fatal("the --repodir option only makes sense if the REPOSITORY "
                 "argument is a URI that begins with http:, https:, ssh:, "
                 "or file:");
  }

  db_open_repository(zRepo);

  /* Figure out which revision to open. */
  if( !emptyFlag ){
    if( g.argc==4 ){
      g.zOpenRevision = g.argv[3];
    }else if( db_exists("SELECT 1 FROM event WHERE type='ci'") ){