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require 'chef/chef_fs/knife'
class Chef
class Knife
class List < Chef::ChefFS::Knife
banner "knife list [-dfR1p] [PATTERN1 ... PATTERNn]"
category "path-based"
deps do
require 'chef/chef_fs/file_system'
require 'highline'
end
option :recursive,
:short => '-R',
:boolean => true,
:description => "List directories recursively"
option :bare_directories,
:short => '-d',
:boolean => true,
:description => "When directories match the pattern, do not show the directories' children"
option :local,
:long => '--local',
:boolean => true,
:description => "List local directory instead of remote"
option :flat,
:short => '-f',
:long => '--flat',
:boolean => true,
:description => "Show a list of filenames rather than the prettified ls-like output normally produced"
option :one_column,
:short => '-1',
:boolean => true,
:description => "Show only one column of results"
option :trailing_slashes,
:short => '-p',
:boolean => true,
:description => "Show trailing slashes after directories"
attr_accessor :exit_code
def run
patterns = name_args.length == 0 ? [""] : name_args
# Get the top-level matches
args = pattern_args_from(patterns)
all_results = parallelize(pattern_args_from(patterns)) do |pattern|
pattern_results = Chef::ChefFS::FileSystem.list(config[:local] ? local_fs : chef_fs, pattern).to_a
if pattern_results.first && !pattern_results.first.exists? && pattern.exact_path
ui.error "#{format_path(pattern_results.first)}: No such file or directory"
self.exit_code = 1
end
pattern_results
end.flatten(1).to_a
# Process directories
if !config[:bare_directories]
dir_results = parallelize(all_results.select { |result| result.dir? }) do |result|
add_dir_result(result)
end.flatten(1)
else
dir_results = []
end
# Process all other results
results = all_results.select { |result| result.exists? && (!result.dir? || config[:bare_directories]) }.to_a
# Flatten out directory results if necessary
if config[:flat]
dir_results.each do |result, children|
results += children
end
dir_results = []
end
# Sort by path for happy output
results = results.sort_by { |result| result.path }
dir_results = dir_results.sort_by { |result| result[0].path }
# Print!
if results.length == 0 && dir_results.length == 1
results = dir_results[0][1]
dir_results = []
end
print_result_paths results
printed_something = results.length > 0
dir_results.each do |result, children|
if printed_something
output ""
else
printed_something = true
end
output "#{format_path(result)}:"
print_results(children.map { |result| maybe_add_slash(result.name, result.dir?) }.sort, "")
end
exit self.exit_code if self.exit_code
end
def add_dir_result(result)
begin
children = result.children.sort_by { |child| child.name }
rescue Chef::ChefFS::FileSystem::NotFoundError => e
ui.error "#{format_path(e.entry)}: No such file or directory"
return []
end
result = [ [ result, children ] ]
if config[:recursive]
child_dirs = children.select { |child| child.dir? }
result += parallelize(child_dirs) { |child| add_dir_result(child) }.flatten(1).to_a
end
result
end
def print_result_paths(results, indent = "")
print_results(results.map { |result| maybe_add_slash(format_path(result), result.dir?) }, indent)
end
def print_results(results, indent)
return if results.length == 0
print_space = results.map { |result| result.length }.max + 2
if config[:one_column] || !stdout.isatty
columns = 0
else
columns = HighLine::SystemExtensions.terminal_size[0]
end
current_line = ''
results.each do |result|
if current_line.length > 0 && current_line.length + print_space > columns
output current_line.rstrip
current_line = ''
end
if current_line.length == 0
current_line << indent
end
current_line << result
current_line << (' ' * (print_space - result.length))
end
output current_line.rstrip if current_line.length > 0
end
def maybe_add_slash(path, is_dir)
if config[:trailing_slashes] && is_dir
"#{path}/"
else
path
end
end
end
end
end
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