Module: Rant::Env

Extended by:
Env
Included in:
Env
Defined in:
lib/rant/init.rb

Constant Summary collapse

OS =
::Config::CONFIG['target']
RUBY =
::Config::CONFIG['ruby_install_name']
RUBY_BINDIR =
::Config::CONFIG['bindir']
RUBY_EXE =
File.join(RUBY_BINDIR, RUBY + ::Config::CONFIG["EXEEXT"])
@@zip_bin =
false
@@tar_bin =
false

Instance Method Summary collapse

Instance Method Details

#find_bin(bin_name) ⇒ Object

Searches for bin_name on path and returns an absolute path if successfull or nil if an executable called bin_name couldn't be found.


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# File 'lib/rant/init.rb', line 105

def find_bin bin_name
    if on_windows?
        bin_name_exe = nil
        if bin_name !~ /\.[^\.]{1,3}$/i
            bin_name_exe = bin_name + ".exe"
        end
        pathes.each { |dir|
            file = File.join(dir, bin_name)
            return file if test(?f, file)
            if bin_name_exe
                file = File.join(dir, bin_name_exe)
                return file if test(?f, file)
            end
        }
    else
        pathes.each { |dir|
            file = File.join(dir, bin_name)
            return file if test(?x, file)
        }
    end
    nil
end

#have_tar?Boolean

Returns:

  • (Boolean)

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# File 'lib/rant/init.rb', line 87

def have_tar?
    if @@tar_bin == false
        @@tar_bin = find_bin "tar"
    end
    !@@tar_bin.nil?
end

#have_zip?Boolean

Returns:

  • (Boolean)

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# File 'lib/rant/init.rb', line 81

def have_zip?
    if @@zip_bin == false
        @@zip_bin = find_bin "zip"
    end
    !@@zip_bin.nil?
end

#on_windows?Boolean

Returns:

  • (Boolean)

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# File 'lib/rant/init.rb', line 76

def on_windows?; true; end

#pathesObject

Get an array with all pathes in the PATH environment variable.


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# File 'lib/rant/init.rb', line 95

def pathes
    # Windows doesn't care about case in environment variables,
    # but the ENV hash does!
    path = ENV[on_windows? ? "Path" : "PATH"]
    return [] unless path
    path.split(on_windows? ? ";" : ":")
end

#shell_path(path) ⇒ Object

Add quotes to a path and replace File::Separators if necessary.


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# File 'lib/rant/init.rb', line 128

def shell_path path
    # TODO: check for more characters when deciding wheter to use
    # quotes.
    if on_windows?
        path = path.tr("/", "\\")
        if path.include? ' '
            '"' + path + '"'
        else
            path
        end
    else
        if path.include? ' '
            "'" + path + "'"
        else
            path
        end
    end
end