class ZipContainer::File
This class represents a ZipContainer
file in PK Zip format. See the OCF and UCF specifications for more details.
This class provides most of the facilities of the Zip::File
class in the rubyzip gem. Please also consult the rubyzip documentation alongside these pages.
There are code examples available with the source code of this library.
Public Class Methods
Source
# File lib/zip-container/file.rb, line 81 def self.create(filename, mimetype) ::Zip::OutputStream.open(filename) do |stream| stream.put_next_entry(MIMETYPE_FILE, nil, nil, ::Zip::Entry::STORED) stream.write mimetype end # Now open the newly created container. c = new(filename) if block_given? begin yield c ensure c.close end end c end
Create a new ZipContainer
file on disk with the specified mimetype.
Source
# File lib/zip-container/file.rb, line 108 def self.each_entry(filename, &block) c = new(filename) if block begin c.each(&block) ensure c.close end end c.each end
Iterate over the entries in the ZipContainer
file. The entry objects returned by this method are Zip::Entry objects. Please see the rubyzip documentation for details.
Public Instance Methods
Source
# File lib/zip-container/file.rb, line 132 def add(entry, src_path, &continue_on_exists_proc) if reserved_entry?(entry) || managed_directory?(entry) raise ReservedNameClashError, entry.to_s end @container.add(entry, src_path, &continue_on_exists_proc) end
Convenience method for adding the contents of a file to the ZipContainer
file. If asked to add a file with a reserved name, such as the special mimetype header file, this method will raise a ReservedNameClashError
.
See the rubyzip documentation for details of the continue_on_exists_proc
parameter.
Source
# File lib/zip-container/file.rb, line 374
Returns the ZipContainer
file comment, if it has one.
Source
# File lib/zip-container/file.rb, line 381
Set the ZipContainer
file comment to the new value.
Source
# File lib/zip-container/file.rb, line 147 def commit return false unless commit_required? @container.commit if on_disk? true end
Commits changes that have been made since the previous commit to the ZipContainer
file. Returns false
if no commit was required, true
otherwise.
Source
# File lib/zip-container/file.rb, line 388
Returns true
if any changes have been made to this ZipContainer
file since the last commit, false
otherwise.
Source
# File lib/zip-container/file.rb, line 165 def dir @fs_dir end
Returns an object which can be used like ruby’s built in Dir
(class) object, except that it works on the ZipContainer
file on which this method is invoked.
See the rubyzip documentation for details.
Source
# File lib/zip-container/file.rb, line 396
Iterate over the entries in the ZipContainer
file. The entry objects returned by this method are Zip::Entry objects. Please see the rubyzip documentation for details.
Source
# File lib/zip-container/file.rb, line 406
Returns an Enumerable containing all the entries in the ZipContainer
file The entry objects returned by this method are Zip::Entry objects. Please see the rubyzip documentation for details.
Source
# File lib/zip-container/file.rb, line 415
Extracts the specified entry of the ZipContainer
file to dest_path
.
See the rubyzip documentation for details of the on_exists_proc
parameter.
Source
# File lib/zip-container/file.rb, line 177 def file @fs_file end
Returns an object which can be used like ruby’s built in File
(class) object, except that it works on the ZipContainer
file on which this method is invoked.
See the rubyzip documentation for details.
Source
# File lib/zip-container/file.rb, line 188 def find_entry(entry_name, options = {}) options = { include_hidden: false }.merge(options) return if !options[:include_hidden] && hidden_entry?(entry_name) @container.find_entry(entry_name) end
Searches for the entry with the specified name. Returns nil
if no entry is found or if the specified entry is hidden for normal use. You can specify :include_hidden => true
to include hidden entries in the search.
Source
# File lib/zip-container/file.rb, line 203 def get_entry(entry, options = {}) options = { include_hidden: false }.merge(options) raise Errno::ENOENT, entry if !options[:include_hidden] && hidden_entry?(entry) @container.get_entry(entry) end
Searches for an entry like find_entry
, but throws Errno::ENOENT if no entry is found or if the specified entry is hidden for normal use. You can specify :include_hidden => true
to include hidden entries in the search.
Source
# File lib/zip-container/file.rb, line 441
Returns an input stream to the specified entry. If a block is passed the stream object is passed to the block and the stream is automatically closed afterwards just as with ruby’s built in File.open
method.
Source
# File lib/zip-container/file.rb, line 221 def get_output_stream(entry, permission = nil, &block) if reserved_entry?(entry) || managed_directory?(entry) raise ReservedNameClashError, entry.to_s end @container.get_output_stream(entry, permission, &block) end
Returns an output stream to the specified entry. If a block is passed the stream object is passed to the block and the stream is automatically closed afterwards just as with ruby’s built-in File.open
method.
See the rubyzip documentation for details of the permission_int
parameter.
Source
# File lib/zip-container/file.rb, line 243 def glob(pattern, *params) # rubocop:disable Metrics/CyclomaticComplexity flags = ::File::FNM_PATHNAME | ::File::FNM_DOTMATCH options = { include_hidden: false } params.each do |param| case param when Hash options = options.merge(param) else flags = param end end entries.filter_map do |entry| next if !options[:include_hidden] && hidden_entry?(entry) next unless ::File.fnmatch(pattern, entry.name.chomp('/'), flags) yield(entry) if block_given? entry end end
Searches for entries given a glob. Hidden files are ignored by default.
The parameters that can be supplied are: * flags
- A bitwise OR of the FNM_xxx
parameters defined in File::Constants. The default value is ::File::FNM_PATHNAME | ::File::FNM_DOTMATCH
* options
- :include_hidden => true
will include hidden entries in the search.
Source
# File lib/zip-container/file.rb, line 269 def in_memory? !@on_disk end
Is this ZipContainer
file memory resident as opposed to stored on disk?
Source
# File lib/zip-container/file.rb, line 283 def mkdir(name, permission = 0o0755) raise ReservedNameClashError, name if reserved_entry?(name) || managed_file?(name) @container.mkdir(name, permission) end
Creates a directory in the ZipContainer
file. If asked to create a directory with a name reserved for use by a file this method will raise a ReservedNameClashError
.
The new directory will be created with the supplied unix-style permissions. The default (0755
) is owner read, write and list; group read and list; and world read and list.
Source
# File lib/zip-container/file.rb, line 463
Returns the filename of this ZipContainer
file.
Source
# File lib/zip-container/file.rb, line 293 def on_disk? @on_disk end
Is this ZipContainer
file stored on disk as opposed to memory resident?
Source
# File lib/zip-container/file.rb, line 470
Returns a string containing the contents of the specified entry.
Source
# File lib/zip-container/file.rb, line 303 def remove(entry) return if reserved_entry?(entry) @container.remove(entry) end
Removes the specified entry from the ZipContainer
file. If asked to remove any reserved files such as the special mimetype header file this method will do nothing.
Source
# File lib/zip-container/file.rb, line 319 def rename(entry, new_name, &continue_on_exists_proc) return if reserved_entry?(entry) raise ReservedNameClashError, new_name if reserved_entry?(new_name) @container.rename(entry, new_name, &continue_on_exists_proc) end
Renames the specified entry in the ZipContainer
file. If asked to rename any reserved files such as the special mimetype header file this method will do nothing. If asked to rename a file to one of the reserved names a ReservedNameClashError
is raised.
See the rubyzip documentation for details of the continue_on_exists_proc
parameter.
Source
# File lib/zip-container/file.rb, line 333 def replace(entry, src_path) return if reserved_entry?(entry) @container.replace(entry, src_path) end
Replaces the specified entry of the ZipContainer
file with the contents of src_path
(from the file system). If asked to replace any reserved files such as the special mimetype header file this method will do nothing.
Source
# File lib/zip-container/file.rb, line 477
Returns the number of entries in the ZipContainer
file.
Source
# File lib/zip-container/file.rb, line 343 def to_s @container.to_s + " - #{@mimetype}" end
Return a textual summary of this ZipContainer
file.