Sha256: 64c4cdfbaa1943ebf6be920aef8454c48cbbd5d5e7e2bc9e4e471f38addb2051
Contents?: true
Size: 1011 Bytes
Versions: 1
Compression:
Stored size: 1011 Bytes
Contents
require 'rib' module Rib::Paging extend Rib::Plugin Shell.use(self) # --------------- Rib API --------------- # Print result if the it fits one screen, # paging it through a pager otherwise. def print_result result output = format_result(result) if one_screen?(output) puts output else page_result(output) end rescue StandardError, SyntaxError => e Rib.warn("Error while printing result:\n #{format_error(e)}") end # `less -F` can't cat the output, so we need to detect by ourselves. # `less -X` would mess up the buffers, so it's not desired, either. def one_screen? output cols, lines = `tput cols`.to_i, `tput lines`.to_i output.count("\n") <= lines && output.size <= cols * lines end def page_result output less = IO.popen(pager, 'w') less.write(output) less.close_write rescue Errno::EPIPE => e Rib.warn("Error while paging result:\n #{format_error(e)}") end def pager ENV['PAGER'] || 'less -R' end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
---|---|
rib-1.2.1 | lib/rib/extra/paging.rb |