Class: Lux::App

Inherits:
Thor
  • Object
show all
Defined in:
lib/lux/app.rb

Overview

The Thor subclass containing useful tasks shared between the Lux standalone executable and Rake tasks.

Constant Summary collapse

EXCLUDE_VARS = 
%w{
  _ HOME PWD TMPDIR SSH_AUTH_SOCK SHLVL DISPLAY Apple_PubSub_Socket_Render SECURITYSESSIONID
  XPC_SERVICE_NAME XPC_FLAGS __CF_USER_TEXT_ENCODING TERM_PROGRAM TERM_PROGRAM_VERSION TERM_SESSION_ID
}

Instance Method Summary collapse

Instance Method Details

#check ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
 
# File 'lib/lux/app.rb', line 19

def check
  repobranch = `git symbolic-ref -q HEAD`.chomp.gsub(%r{^.*/},'')
  puts "Repository is on branch #{repobranch}"
  `git fetch --recurse-submodules=on-demand`
  nModuleErr = 0
  nModuleWarn = 0
  # Inspect any submodules currently checked out
  submodules = Hash[`git submodule status --recursive`.split(/\n/).map do |s|
    Lux.die "Bad submodule status #{s}" unless /^(?<flag>[-+U\s])(?<sha>[0-9a-f]{40})\s(?<path>\S+)(\s*\((?<ref>\S+)\))?$/ =~ s
    case flag
    when '-'
      Highline.say "Submodule at #{path} is <%= color('not initialized', RED) %>!"
      nModuleWarn += 1
    when '+'
      Highline.say "Submodule at #{path} is <%= color('not at correct commit', RED) %>!"
      nModuleErr += 1
    when 'U'
      Highline.say "Submodule at #{path} is <%= color('conflicted', RED) %>!"
      nModuleErr += 1
    else
      Highline.say "Submodule at #{path} is <%= color('OK', GREEN) %>"
    end
    [path, [flag, sha, ref]]
  end ]
  Lux.die "There were #{nModuleErr} submodule errors and #{nModuleWarn} warnings" if nModuleErr > 0
  # If the submodule status (above) was good, then we can ignore any submodule issues here
  changes = `git status --porcelain`.split(/\n/).reject do |ch|
    Lux.die "Bad status #{ch}" unless /^(?<x>.)(?<y>.)\s(?<path1>\S+)( -> (?<path2>\S+))?$/ =~ ch
    submodules.include? path1
  end
  if changes.size > 0
    Lux.die "Repository is not clean (#{changes.size} issues), use 'git status'"
  else
    HighLine.say "<%= color('Repository is clean', GREEN) %>"
  end
end

#clean ⇒ Object 



96
97
98
99
100
101
102
103
 
# File 'lib/lux/app.rb', line 96

def clean
  exited = `docker ps -q -f status=exited`.gsub! /\n/,' '
  if exited and not exited.empty?
    system "docker rm #{exited}"
  else
    puts "No exited containers"
  end
end

#clobber ⇒ Object 



166
167
168
169
170
171
172
173
174
 
# File 'lib/lux/app.rb', line 166

def clobber
  clean
  running = `docker ps -q -f status=running`.gsub! /\n/,' '
  if running and not running.empty?
    system "docker rm -f #{running}"
  else
    puts "No running containers"
  end
end

#dockerip ⇒ Object 



180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
 
# File 'lib/lux/app.rb', line 180

def dockerip
  name, uri, info = Lux.dockerip
  return Lux.info "Docker is not available" unless name

  var = 'DOCKER_HOST'
  case uri.scheme
  when 'tcp'
    uri.host = name
    if STDOUT.isatty
      Lux.info "Please export: #{var}=#{uri.to_s}"
      Lux.info "(You can use '$(lux dockerip)' to do this)"
    else
      Lux.info "Exported: #{var}=#{uri.to_s}"
      puts "export #{var}=#{uri.to_s}"
    end
  when 'unix'
      Lux.info "Docker is running on a Unix socket"
  end
  Lux.info "Version #{info['Version']}, OS: #{info['Os']}, Arch: #{info['Arch']}, Kernel: #{info['KernelVersion']}" if info
end

#exec(image, *command) ⇒ Object 



83
84
85
86
87
88
89
90
91
92
93
 
# File 'lib/lux/app.rb', line 83

def exec(image, *command)
  image = Lux.findimage image
  me, setup_cmd = user_setup_cmd
  Lux.die "You must be within your home directory!" unless relwd = Pathname.pwd.to_s.gsub!(/^#{ENV['HOME']}/,'~')
  command.map!{|m| m.start_with?('/') ? Pathname.new(m).relative_path_from(Pathname.pwd) : m }
  env = ENV.reject{|k,v| EXCLUDE_VARS.include? k or v =~/\s+/}.map{|k,v| "#{k}=#{v.shellescape}"}
  env += IO.readlines(options.env).grep(/^(?!#)/).map(&:rstrip) if options.env
  cmd = setup_cmd + "su - #{me} -c 'cd #{relwd}; env -i #{env.join(' ')} #{command.join(' ')}'"
  args = ["-v #{ENV['HOME']}:#{ENV['HOME']}"]
  system "docker run --rm #{args.join(' ')} #{image} /bin/bash -c #{cmd.shellescape}"
end

#lsimages(pattern = nil) ⇒ Object 



117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
 
# File 'lib/lux/app.rb', line 117

def lsimages(pattern=nil)
  if options.regex
    pattern = '.*' unless pattern
    rx = Regexp.new(pattern)
    matcher = lambda {|s| rx.match(s)}
  else
    pattern = '*' unless pattern
    matcher = lambda {|s| File.fnmatch?(pattern, s)}
  end
  imagelines = `docker images`.split("\n")[1..-1].sort
  imagelines.each do |imageline|
    imageinfo = imageline.split(/\s+/)
    next if imageinfo[0] == '<none>'
    imagename = imageinfo[0]+':'+imageinfo[1]
    imagesize = imageinfo[-2]+' '+imageinfo[-1]
    imageage  = imageinfo[3..-3].join(' ')
    next unless matcher.call(imagename)
    printf "%-54s%-16s%10s\n", imagename, imageage, imagesize
  end
end

#rmimages(pattern = nil) ⇒ Object 



141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
 
# File 'lib/lux/app.rb', line 141

def rmimages(pattern=nil)
  if options.regex
    pattern = '.*' unless pattern
    rx = Regexp.new(pattern)
    matcher = lambda {|s| rx.match(s)}
  else
    pattern = '*' unless pattern
    matcher = lambda {|s| File.fnmatch?(pattern, s)}
  end
  imagelines = `docker images`.split("\n")[1..-1]
  imagelines.each do |imageline|
    imageinfo = imageline.split(/\s+/)
    next if imageinfo[0] == '<none>'
    imagename = imageinfo[0]+':'+imageinfo[1]
    imagesize = imageinfo[-2]+' '+imageinfo[-1]
    imageage  = imageinfo[3..-3].join(' ')
    next unless matcher.call(imagename)
    if options.force or (agree("Delete #{imagename} (#{imageage}, #{imagesize})? "){|q|q.echo=true})
      `docker rmi #{options.force ? '-f':''} #{imageinfo[2]}`
      HighLine.say "Image <%= color('#{imagename}', RED)%> deleted"
    end
  end
end

#start(image) ⇒ Object 



60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
 
# File 'lib/lux/app.rb', line 60

def start(image)
  image = Lux.findimage image
  raise "no image" if image.empty?
  puts "Starting #{image} container..."
  me, setup_cmd = Lux.user_setup_cmd()
  args = ["-v #{ENV['HOME']}:#{ENV['HOME']}"]
  args << "--env-file=#{options.env}" if options.env
  args << "--name=#{options.name}" unless options.name == '<autogenerated>'
  args << (options.port ? "-p #{options.port}" : "-P")
  cid = `docker run -dit #{args.join(' ')} #{image} /bin/bash`.strip
  Lux.die "Container failed to start" unless cid =~ /^[a-z0-9]+$/
  system "docker exec #{cid} bash -c #{setup_cmd.shellescape}"
  puts "Type 'su [-] #{me}' then hit enter to attach to the container as yourself:"
  Kernel.exec "docker attach #{cid}"
end

#tidy ⇒ Object 



106
107
108
109
110
111
112
113
 
# File 'lib/lux/app.rb', line 106

def tidy
  images = `docker images -f "dangling=true" -q`
  if images.size > 0
    system 'docker rmi $(docker images -f "dangling=true" -q)'
  else
    puts "No dangling images"
  end
end

#version ⇒ Object 



14
15
16
 
# File 'lib/lux/app.rb', line 14

def version
  puts "Version #{Lux::VERSION}"
end