Insert text into the line at the current cursor position.
See GNU Readline’s rl_insert_text function.
Raises NotImplementedError
if the using readline library does not support.
Combine two Adler-32 check values in to one. alder1
is the first Adler-32 value, adler2
is the second Adler-32 value. len2
is the length of the string used to generate adler2
.
Combine two CRC-32 check values in to one. crc1
is the first CRC-32 value, crc2
is the second CRC-32 value. len2
is the length of the string used to generate crc2
.
Returns true
if the named file is writable by the real user and group id of this process. See access(3)
If file_name is writable by others, returns an integer representing the file permission bits of file_name. Returns nil
otherwise. The meaning of the bits is platform dependent; on Unix systems, see stat(2)
.
file_name can be an IO
object.
File.world_writable?("/tmp") #=> 511 m = File.world_writable?("/tmp") sprintf("%o", m) #=> "777"
Try to activate a gem containing path
. Returns true if activation succeeded or wasn’t needed because it was already activated. Returns false if it can’t find the path in a gem.
Find
the full path to the executable for gem name
. If the exec_name
is not given, an exception will be raised, otherwise the specified executable’s path is returned. requirements
allows you to specify specific gem versions.
The mode needed to read a file as straight binary.
Returns a list of paths matching glob
that can be used by a gem to pick up features from other gems. For example:
Gem.find_files('rdoc/discover').each do |path| load path end
if check_load_path
is true (the default), then find_files
also searches $LOAD_PATH for files as well as gems.
Note that find_files
will return all files even if they are from different versions of the same gem. See also find_latest_files
Finds the user’s home directory.
Adds a post-build hook that will be passed an Gem::Installer
instance when Gem::Installer#install
is called. The hook is called after the gem has been extracted and extensions have been built but before the executables or gemspec has been written. If the hook returns false
then the gem’s files will be removed and the install will be aborted.
Adds a hook that will get run after Gem::Specification.reset
is run.
Safely read a file in binary mode on all platforms.
Is this a windows platform?
Find
the ‘rubygems_plugin’ files in the latest installed gems and load them
The default directory for binaries
Allows toggling Windows behavior. This method is available when requiring ‘rubygems/test_case’
Start a dRuby server locally.
The new dRuby server will become the primary server, even if another server is currently the primary server.
uri
is the URI
for the server to bind to. If nil, the server will bind to random port on the default local host name and use the default dRuby protocol.
front
is the server’s front object. This may be nil.
config
is the configuration for the new server. This may be nil.
See DRbServer::new
.
Start a dRuby server locally.
The new dRuby server will become the primary server, even if another server is currently the primary server.
uri
is the URI
for the server to bind to. If nil, the server will bind to random port on the default local host name and use the default dRuby protocol.
front
is the server’s front object. This may be nil.
config
is the configuration for the new server. This may be nil.
See DRbServer::new
.
Stop the local dRuby server.
This operates on the primary server. If there is no primary server currently running, it is a noop.
Stop the local dRuby server.
This operates on the primary server. If there is no primary server currently running, it is a noop.
Registers server
with DRb
.
This is called when a new DRb::DRbServer is created.
If there is no primary server then server
becomes the primary server.
Example:
require 'drb' s = DRb::DRbServer.new # automatically calls regist_server DRb.fetch_server s.uri #=> #<DRb::DRbServer:0x...>
Registers server
with DRb
.
This is called when a new DRb::DRbServer is created.
If there is no primary server then server
becomes the primary server.
Example:
require 'drb' s = DRb::DRbServer.new # automatically calls regist_server DRb.fetch_server s.uri #=> #<DRb::DRbServer:0x...>
Copies a file system entry src
to dest
. If src
is a directory, this method copies its contents recursively. This method preserves file types, c.f. symlink, directory… (FIFO, device files and etc. are not supported yet)
Both of src
and dest
must be a path name. src
must exist, dest
must not exist.
If preserve
is true, this method preserves owner, group, and modified time. Permissions are copied regardless preserve
.
If dereference_root
is true, this method dereference tree root.
If remove_destination
is true, this method removes each destination file before copy.