Top level install helper method. Allows you to install gems interactively:
% irb >> Gem.install "minitest" Fetching: minitest-5.14.0.gem (100%) => [#<Gem::Specification:0x1013b4528 @name="minitest", ...>]
Copies a file entry. See install(1).
Arguments src
(a single path or an array of paths) and dest
(a single path) should be interpretable as paths;
If the entry at dest
does not exist, copies from src
to dest
:
File.read('src0.txt') # => "aaa\n" File.exist?('dest0.txt') # => false FileUtils.install('src0.txt', 'dest0.txt') File.read('dest0.txt') # => "aaa\n"
If dest
is a file entry, copies from src
to dest
, overwriting:
File.read('src1.txt') # => "aaa\n" File.read('dest1.txt') # => "bbb\n" FileUtils.install('src1.txt', 'dest1.txt') File.read('dest1.txt') # => "aaa\n"
If dest
is a directory entry, copies from src
to dest/src
, overwriting if necessary:
File.read('src2.txt') # => "aaa\n" File.read('dest2/src2.txt') # => "bbb\n" FileUtils.install('src2.txt', 'dest2') File.read('dest2/src2.txt') # => "aaa\n"
If src
is an array of paths and dest
points to a directory, copies each path path
in src
to dest/path
:
File.file?('src3.txt') # => true File.file?('src3.dat') # => true FileUtils.mkdir('dest3') FileUtils.install(['src3.txt', 'src3.dat'], 'dest3') File.file?('dest3/src3.txt') # => true File.file?('dest3/src3.dat') # => true
Keyword arguments:
group: group
- changes the group if not nil
, using File.chown
.
mode: permissions
- changes the permissions. using File.chmod
.
noop: true
- does not copy entries; returns nil
.
owner: owner
- changes the owner if not nil
, using File.chown
.
preserve: true
- preserve timestamps using File.utime
.
verbose: true
- prints an equivalent command:
FileUtils.install('src0.txt', 'dest0.txt', noop: true, verbose: true) FileUtils.install('src1.txt', 'dest1.txt', noop: true, verbose: true) FileUtils.install('src2.txt', 'dest2', noop: true, verbose: true)
Output:
install -c src0.txt dest0.txt install -c src1.txt dest1.txt install -c src2.txt dest2
Related: methods for copying.
Copies a file entry. See install(1).
Arguments src
(a single path or an array of paths) and dest
(a single path) should be interpretable as paths;
If the entry at dest
does not exist, copies from src
to dest
:
File.read('src0.txt') # => "aaa\n" File.exist?('dest0.txt') # => false FileUtils.install('src0.txt', 'dest0.txt') File.read('dest0.txt') # => "aaa\n"
If dest
is a file entry, copies from src
to dest
, overwriting:
File.read('src1.txt') # => "aaa\n" File.read('dest1.txt') # => "bbb\n" FileUtils.install('src1.txt', 'dest1.txt') File.read('dest1.txt') # => "aaa\n"
If dest
is a directory entry, copies from src
to dest/src
, overwriting if necessary:
File.read('src2.txt') # => "aaa\n" File.read('dest2/src2.txt') # => "bbb\n" FileUtils.install('src2.txt', 'dest2') File.read('dest2/src2.txt') # => "aaa\n"
If src
is an array of paths and dest
points to a directory, copies each path path
in src
to dest/path
:
File.file?('src3.txt') # => true File.file?('src3.dat') # => true FileUtils.mkdir('dest3') FileUtils.install(['src3.txt', 'src3.dat'], 'dest3') File.file?('dest3/src3.txt') # => true File.file?('dest3/src3.dat') # => true
Keyword arguments:
group: group
- changes the group if not nil
, using File.chown
.
mode: permissions
- changes the permissions. using File.chmod
.
noop: true
- does not copy entries; returns nil
.
owner: owner
- changes the owner if not nil
, using File.chown
.
preserve: true
- preserve timestamps using File.utime
.
verbose: true
- prints an equivalent command:
FileUtils.install('src0.txt', 'dest0.txt', noop: true, verbose: true) FileUtils.install('src1.txt', 'dest1.txt', noop: true, verbose: true) FileUtils.install('src2.txt', 'dest2', noop: true, verbose: true)
Output:
install -c src0.txt dest0.txt install -c src1.txt dest1.txt install -c src2.txt dest2
Related: methods for copying.
Returns an array of the string keyword names:
FileUtils.options.take(3) # => ["noop", "verbose", "force"]
Returns the singleton instance.
Like URI.encode_www_form_component
, except that ' '
(space) is encoded as '%20'
(instead of '+'
).
Like URI.decode_www_form_component
, except that '+'
is preserved.
Default options for the gem install and update commands.
Invoked as a callback whenever an instance method is removed from the receiver.
module Chatty def self.method_removed(method_name) puts "Removing #{method_name.inspect}" end def self.some_class_method() end def some_instance_method() end class << self remove_method :some_class_method end remove_method :some_instance_method end
produces:
Removing :some_instance_method
Returns a new lazy enumerator with the concatenated results of running block
once for every element in the lazy enumerator.
["foo", "bar"].lazy.flat_map {|i| i.each_char.lazy}.force #=> ["f", "o", "o", "b", "a", "r"]
A value x
returned by block
is decomposed if either of the following conditions is true:
x
responds to both each and force, which means that x
is a lazy enumerator.
x
is an array or responds to to_ary.
Otherwise, x
is contained as-is in the return value.
[{a:1}, {b:2}].lazy.flat_map {|i| i}.force #=> [{:a=>1}, {:b=>2}]
Returns path to the extensions directory.
Indicated, based on the requested domain, if local gems should be considered.
Builds extensions. Valid types of extensions are extconf.rb files, configure scripts and rakefiles or mkrf_conf files.
Creates or an HTTP connection based on uri
, or retrieves an existing connection, using a proxy if needed.
The path where this gem installs its extensions.
Is this specification missing its extensions? When this returns true you probably want to build_extensions
Private setter for extensions val
.