Recursively copies files from src to dest.
Arguments src and dest should be interpretable as paths.
If src is the path to a file, copies src to dest:
FileUtils.touch('src0.txt') File.exist?('dest0.txt') # => false FileUtils.copy_entry('src0.txt', 'dest0.txt') File.file?('dest0.txt') # => true
If src is a directory, recursively copies src to dest:
tree('src1') # => src1 # |-- dir0 # | |-- src0.txt # | `-- src1.txt # `-- dir1 # |-- src2.txt # `-- src3.txt FileUtils.copy_entry('src1', 'dest1') tree('dest1') # => dest1 # |-- dir0 # | |-- src0.txt # | `-- src1.txt # `-- dir1 # |-- src2.txt # `-- src3.txt
The recursive copying preserves file types for regular files, directories, and symbolic links; other file types (FIFO streams, device files, etc.) are not supported.
Keyword arguments:
dereference_root: true - if src is a symbolic link, follows the link.
preserve: true - preserves file times.
remove_destination: true - removes dest before copying files.
Related: methods for copying.
Copies file from src to dest, which should not be directories.
Arguments src and dest should be interpretable as paths.
Examples:
FileUtils.touch('src0.txt') FileUtils.copy_file('src0.txt', 'dest0.txt') File.file?('dest0.txt') # => true
Keyword arguments:
dereference: false - if src is a symbolic link, does not follow the link.
preserve: true - preserves file times.
remove_destination: true - removes dest before copying files.
Related: methods for copying.
Copies file from src to dest, which should not be directories.
Arguments src and dest should be interpretable as paths.
Examples:
FileUtils.touch('src0.txt') FileUtils.copy_file('src0.txt', 'dest0.txt') File.file?('dest0.txt') # => true
Keyword arguments:
dereference: false - if src is a symbolic link, does not follow the link.
preserve: true - preserves file times.
remove_destination: true - removes dest before copying files.
Related: methods for copying.
Returns an array of the string method names of the methods that accept the given keyword option opt; the argument must be a symbol:
FileUtils.collect_method(:preserve) # => ["cp", "copy", "cp_r", "install"]
Open3.pipeline_start starts a list of commands as a pipeline. No pipes are created for stdin of the first command and stdout of the last command.
Open3.pipeline_start(cmd1, cmd2, ... [, opts]) {|wait_threads|
...
}
wait_threads = Open3.pipeline_start(cmd1, cmd2, ... [, opts])
...
Each cmd is a string or an array. If it is an array, the elements are passed to Process.spawn.
cmd: commandline command line string which is passed to a shell [env, commandline, opts] command line string which is passed to a shell [env, cmdname, arg1, ..., opts] command name and one or more arguments (no shell) [env, [cmdname, argv0], arg1, ..., opts] command name and arguments including argv[0] (no shell) Note that env and opts are optional, as for Process.spawn.
Example:
# Run xeyes in 10 seconds. Open3.pipeline_start("xeyes") {|ts| sleep 10 t = ts[0] Process.kill("TERM", t.pid) p t.value #=> #<Process::Status: pid 911 SIGTERM (signal 15)> } # Convert pdf to ps and send it to a printer. # Collect error message of pdftops and lpr. pdf_file = "paper.pdf" printer = "printer-name" err_r, err_w = IO.pipe Open3.pipeline_start(["pdftops", pdf_file, "-"], ["lpr", "-P#{printer}"], :err=>err_w) {|ts| err_w.close p err_r.read # error messages of pdftops and lpr. }
Open3.pipeline_start starts a list of commands as a pipeline. No pipes are created for stdin of the first command and stdout of the last command.
Open3.pipeline_start(cmd1, cmd2, ... [, opts]) {|wait_threads|
...
}
wait_threads = Open3.pipeline_start(cmd1, cmd2, ... [, opts])
...
Each cmd is a string or an array. If it is an array, the elements are passed to Process.spawn.
cmd: commandline command line string which is passed to a shell [env, commandline, opts] command line string which is passed to a shell [env, cmdname, arg1, ..., opts] command name and one or more arguments (no shell) [env, [cmdname, argv0], arg1, ..., opts] command name and arguments including argv[0] (no shell) Note that env and opts are optional, as for Process.spawn.
Example:
# Run xeyes in 10 seconds. Open3.pipeline_start("xeyes") {|ts| sleep 10 t = ts[0] Process.kill("TERM", t.pid) p t.value #=> #<Process::Status: pid 911 SIGTERM (signal 15)> } # Convert pdf to ps and send it to a printer. # Collect error message of pdftops and lpr. pdf_file = "paper.pdf" printer = "printer-name" err_r, err_w = IO.pipe Open3.pipeline_start(["pdftops", pdf_file, "-"], ["lpr", "-P#{printer}"], :err=>err_w) {|ts| err_w.close p err_r.read # error messages of pdftops and lpr. }
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.
Find rubygems plugin files in the standard location and load them
The path to standard location of the user’s state file.
The path to standard location of the user’s state directory.
Returns tokens corresponding to the location of the node. Returns nil if keep_tokens is not enabled when parse method is called.
root = RubyVM::AbstractSyntaxTree.parse("x = 1 + 2", keep_tokens: true) root.tokens # => [[0, :tIDENTIFIER, "x", [1, 0, 1, 1]], [1, :tSP, " ", [1, 1, 1, 2]], ...] root.tokens.map{_1[2]}.join # => "x = 1 + 2"
Token is an array of:
id
token type
source code text
location [ first_lineno, first_column, last_lineno, last_column ]
Returns debugging information about this node as a string.
Returns the SSLSession object currently used, or nil if the session is not established.
Sends “close notify” to the peer and tries to shut down the SSL connection gracefully.
A description of the current connection state. This is for diagnostic purposes only.
Sets the Session to be used when the connection is established.
Sets the server hostname used for SNI. This needs to be set before SSLSocket#connect.
See TCPServer#listen for details.
Sets the trust settings of the context. This overrides the default value set by Store#trust=.
See also the man page X509_VERIFY_PARAM_set_trust(3).
Returns the status of the response.