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#
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require_relative "../chef_fs/knife"
class Chef
class Knife
class List < Chef::ChefFS::Knife
banner "knife list [-dfR1p] [PATTERN1 ... PATTERNn] (options)"
category "path-based"
deps do
require_relative "../chef_fs/file_system"
require "tty-screen"
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
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(&: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| # rubocop:disable Style/HashEachMethods
results += children
end
dir_results = []
end
# Sort by path for happy output
results = results.sort_by(&: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.display_name, result.dir?) }.sort, "")
end
exit exit_code if exit_code
end
def add_dir_result(result)
begin
children = result.children.sort_by(&: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(&: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(&:length).max + 2
if config[:one_column] || !stdout.isatty
columns = 0
else
columns = TTY::Screen.columns
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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