Fossil

**
** Omit any file whose name is pOmit.
*/
static int add_one_file(
  const char *zPath,   /* Tree-name of file to add. */
  int vid              /* Add to this VFILE */
){
  int doSkip = 0;
  if( !file_is_simple_pathname(zPath, 1) ){
    fossil_warning("filename contains illegal characters: %s", zPath);
    return 0;
  }
  if( db_exists("SELECT 1 FROM vfile"
                " WHERE pathname=%Q %s", zPath, filename_collation()) ){
    db_multi_exec("UPDATE vfile SET deleted=0"
                  " WHERE pathname=%Q %s AND deleted",
                  zPath, filename_collation());
  }else{
    char *zFullname = mprintf("%s%s", g.zLocalRoot, zPath);
    int isExe = file_isexe(zFullname, RepoFILE);
    if( file_nondir_objects_on_path(g.zLocalRoot, zFullname) ){
      /* Do not add unsafe files to the vfile */
      doSkip = 1;
    }else{
      db_multi_exec(
        "INSERT INTO vfile(vid,deleted,rid,mrid,pathname,isexe,islink,mhash)"
        "VALUES(%d,0,0,0,%Q,%d,%d,NULL)",
        vid, zPath, isExe, file_islink(0));
    }
    fossil_free(zFullname);
  }
  if( db_changes() && !doSkip ){
    fossil_print("ADDED  %s\n", zPath);
    return 1;
  }else{
    fossil_print("SKIP   %s\n", zPath);
    return 0;
  }
}

    }
    z[j] = '/';
    i = j;
  }
  fossil_free(z);
  return 0;
}

/*
** The file named zFile is suppose to be an in-tree file.  Check to
** ensure that it will be safe to write to this file by verifying that
** there are no symlinks or other non-directory objects in between the
** root of the checkout and zFile.
**
** If a problem is found, print a warning message (using fossil_warning())
** and return non-zero.  If everything is ok, return zero.
*/
int file_unsafe_in_tree_path(const char *zFile){
  int n;
  if( !file_is_absolute_path(zFile) ){
    fossil_panic("%s is not an absolute pathname",zFile);
  }
  if( fossil_strnicmp(g.zLocalRoot, zFile, (int)strlen(g.zLocalRoot)) ){
    fossil_panic("%s is not a prefix of %s", g.zLocalRoot, zFile);
  }
  n = file_nondir_objects_on_path(g.zLocalRoot, zFile);
  if( n ){
    fossil_warning("cannot write to %s because non-directory object %.*s"
                   " is in the way", zFile, n, zFile);
  }
  return n;
}

/*
** Return 1 if zFilename is a directory.  Return 0 if zFilename
** does not exist.  Return 2 if zFilename exists but is something
** other than a directory.
*/
int file_isdir(const char *zFilename, int eFType){

      db_multi_exec("INSERT OR IGNORE INTO sfile(pathname) VALUES(%Q)", zNew);
      db_ephemeral_blob(&q, 6, &delta);
      blob_write_to_file(&delta, zNPath);
      file_setexe(zNPath, isExec);
    }else if( isRemoved ){
      fossil_print("DELETE %s\n", zOrig);
      file_delete(zOPath);
    }else if( file_unsafe_in_tree_path(zNPath) ){
      /* Ignore the unsafe path */
    }else{
      Blob a, b, out, disk;
      int isNewLink = file_islink(zOPath);
      db_ephemeral_blob(&q, 6, &delta);
      blob_read_from_file(&disk, zOPath, RepoFILE);
      content_get(rid, &a);
      blob_delta_apply(&a, &delta, &b);

    int new_exists;
    int old_exe;
    int new_exe;
    int new_link;
    int old_link;
    Blob current;
    Blob new;
    zFullname = mprintf("%s%s", g.zLocalRoot, zPathname);
    old_link = db_column_int(&q, 3);
    new_exists = file_size(zFullname, RepoFILE)>=0;
    new_link = file_islink(0);
    if( new_exists ){
      blob_read_from_file(&current, zFullname, RepoFILE);
      new_exe = file_isexe(0,0);
    }else{
      blob_zero(&current);
      new_exe = 0;
    }
    blob_zero(&new);
    old_exists = db_column_int(&q, 1);
    old_exe = db_column_int(&q, 2);
    if( old_exists ){
      db_ephemeral_blob(&q, 0, &new);
    }
    if( file_unsafe_in_tree_path(zFullname) ){
      /* do nothign with this unsafe file */
    }else if( old_exists ){
      if( new_exists ){
        fossil_print("%s   %s\n", redoFlag ? "REDO" : "UNDO", zPathname);
      }else{
        fossil_print("NEW    %s\n", zPathname);
      }
      if( new_exists && (new_link || old_link) ){
        file_delete(zFullname);

      db_multi_exec(
        "UPDATE OR REPLACE vfile"
        "   SET pathname=origname, origname=NULL"
        " WHERE pathname=%Q AND origname!=pathname;"
        "DELETE FROM vfile WHERE pathname=%Q",
        zFile, zFile
      );
    }else if( file_unsafe_in_tree_path(zFull) ){
      /* Ignore this file */
    }else{
      sqlite3_int64 mtime;
      int rvChnged = 0;
      int rvPerm = manifest_file_mperm(pRvFile);

      /* Determine if reverted-to file is different than checked out file. */
      if( pCoManifest && (pCoFile = manifest_file_find(pCoManifest, zFile)) ){

struct UrlData {
  int isFile;      /* True if a "file:" url */
  int isHttps;     /* True if a "https:" url */
  int isSsh;       /* True if an "ssh:" url */
  int isAlias;     /* Input URL was an alias */
  char *name;      /* Hostname for http: or filename for file: */
  char *hostname;  /* The HOST: parameter on http headers */
  const char *protocol; /* "http" or "https" or "ssh" */
  int port;        /* TCP port number for http: or https: */
  int dfltPort;    /* The default port for the given protocol */
  char *path;      /* Pathname for http: */
  char *user;      /* User id for http: */
  char *passwd;    /* Password for http: */
  char *canonical; /* Canonical representation of the URL */
  char *proxyAuth; /* Proxy-Authorizer: string */

** last-sync-url setting using last-sync-pw as the password.  Store
** the parser results in the pUrlData object.  Populate members of pUrlData
** as follows:
**
**      isFile      True if FILE:
**      isHttps     True if HTTPS:
**      isSsh       True if SSH:
**      protocol    "http" or "https" or "file"
**      name        Hostname for HTTP:, HTTPS:, SSH:.  Filename for FILE:
**      port        TCP port number for HTTP or HTTPS.
**      dfltPort    Default TCP port number (80 or 443).
**      path        Path name for HTTP or HTTPS.
**      user        Userid.
**      passwd      Password.
**      hostname    HOST:PORT or just HOST if port is the default.

** in the global "g.url" structure as shown below.  If zUrl is NULL, then
** parse the URL given in the last-sync-url setting, taking the password
** form last-sync-pw.
**
**      g.url.isFile      True if FILE:
**      g.url.isHttps     True if HTTPS:
**      g.url.isSsh       True if SSH:
**      g.url.protocol    "http" or "https" or "file"
**      g.url.name        Hostname for HTTP:, HTTPS:, SSH:.  Filename for FILE:
**      g.url.port        TCP port number for HTTP or HTTPS.
**      g.url.dfltPort    Default TCP port number (80 or 443).
**      g.url.path        Path name for HTTP or HTTPS.
**      g.url.user        Userid.
**      g.url.passwd      Password.
**      g.url.hostname    HOST:PORT or just HOST if port is the default.

                   "  FROM vfile"
                   " WHERE id=%d AND mrid>0",
                   g.zLocalRoot, id);
  }
  while( db_step(&q)==SQLITE_ROW ){
    int id, rid, isExe, isLink;
    const char *zName;


    id = db_column_int(&q, 0);
    zName = db_column_text(&q, 1);
    rid = db_column_int(&q, 2);
    isExe = db_column_int(&q, 3);
    isLink = db_column_int(&q, 4);
    if( file_unsafe_in_tree_path(zName) ){
      continue;
    }
    content_get(rid, &content);
    if( file_is_the_same(&content, zName) ){
      blob_reset(&content);
      if( file_setexe(zName, isExe) ){
        db_multi_exec("UPDATE vfile SET mtime=%lld WHERE id=%d",
                      file_mtime(zName, RepoFILE), id);
      }

        promptFlag = 0;
      } else if( cReply!='y' && cReply!='Y' ){
        blob_reset(&content);
        continue;
      }
    }
    if( verbose ) fossil_print("%s\n", &zName[nRepos]);






    if( file_isdir(zName, RepoFILE)==1 ){
      /*TODO(dchest): remove directories? */
      fossil_fatal("%s is directory, cannot overwrite", zName);
    }
    if( file_size(zName, RepoFILE)>=0 && (isLink || file_islink(0)) ){
      file_delete(zName);
    }