Module: RakeFileUtils
Overview
RakeFileUtils provides a custom version of the FileUtils methods that respond to the verbose
and nowrite
commands.
Constant Summary
Constants included from FileUtils
FileUtils::LN_SUPPORTED, FileUtils::RUBY
Instance Method Summary collapse
-
#nowrite(value = nil) ⇒ Object
Get/set the nowrite flag controlling output from the FileUtils utilities.
-
#verbose(value = nil) ⇒ Object
Get/set the verbose flag controlling output from the FileUtils utilities.
-
#when_writing(msg = nil) ⇒ Object
Use this function to prevent protentially destructive ruby code from running when the :nowrite flag is set.
Methods included from FileUtils
#ruby, #safe_ln, #sh, #split_all
Instance Method Details
#nowrite(value = nil) ⇒ Object
Get/set the nowrite flag controlling output from the FileUtils utilities. If verbose is true, then the utility method is echoed to standard output.
Examples:
nowrite # return the current value of the nowrite flag
nowrite(v) # set the nowrite flag to _v_.
nowrite(v) { code } # Execute code with the nowrite flag set temporarily to _v_.
# Return to the original value when code is done.
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# File 'lib/rake.rb', line 676 def nowrite(value=nil) oldvalue = $fileutils_nowrite $fileutils_nowrite = value unless value.nil? if block_given? begin yield ensure $fileutils_nowrite = oldvalue end end oldvalue end |
#verbose(value = nil) ⇒ Object
Get/set the verbose flag controlling output from the FileUtils utilities. If verbose is true, then the utility method is echoed to standard output.
Examples:
verbose # return the current value of the verbose flag
verbose(v) # set the verbose flag to _v_.
verbose(v) { code } # Execute code with the verbose flag set temporarily to _v_.
# Return to the original value when code is done.
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# File 'lib/rake.rb', line 654 def verbose(value=nil) oldvalue = $fileutils_verbose $fileutils_verbose = value unless value.nil? if block_given? begin yield ensure $fileutils_verbose = oldvalue end end $fileutils_verbose end |
#when_writing(msg = nil) ⇒ Object
Use this function to prevent protentially destructive ruby code from running when the :nowrite flag is set.
Example:
when_writing("Building Project") do
project.build
end
The following code will build the project under normal conditions. If the nowrite(true) flag is set, then the example will print:
DRYRUN: Building Project
instead of actually building the project.
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# File 'lib/rake.rb', line 703 def when_writing(msg=nil) if $fileutils_nowrite puts "DRYRUN: #{msg}" if msg else yield end end |