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truckle: resume-file-support removed. exported via process-environment `/etc/profile.d/cave.sh`

master
Denis Knauf 2014-03-21 13:23:51 +01:00
parent 3782f838eb
commit 82b710bf88
2 changed files with 110 additions and 115 deletions
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3
configs/profile.sh
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@ -2,7 +2,6 @@ TRUCKLE_RESUME_FILE="/tmp/truckle-resume-pid-${$}"
CAVE_all_commands_OPTIONS="--resume-file ${TRUCKLE_RESUME_FILE}"
CAVE_RESOLVE_OPTIONS="${CAVE_all_commands_OPTIONS}"
CAVE_RESUME_OPTIONS="${CAVE_all_commands_OPTIONS}"
CAVE_FIX_LINKAGE_OPTIONS="${CAVE_all_commands_OPTIONS}"
CAVE_UNINSTALL_OPTIONS="${CAVE_all_commands_OPTIONS}"
export TRUCKLE_RESUME_FILE CAVE_all_commands_OPTIONS CAVE_RESOLVE_OPTIONS
export CAVE_RESUME_OPTIONS CAVE_FIX_LINKAGE_OPTIONS CAVE_UNINSTALL_OPTIONS
export CAVE_RESUME_OPTIONS CAVE_UNINSTALL_OPTIONS

222
truckle
View File

@ -28,6 +28,24 @@ EOF
raise
end
class NamedProc < Proc
attr_reader :name
def initialize name, &block
@name = name.dup
@name.freeze
super &block
end
def inspect
"#<Proc:#{name} >"
end
end
module Kernel
def named_proc name, &block
NamedProc.new name, &block
end
end
class GetoptLong
def argv=( v) @argv = v end
def argv() @argv end
@ -61,8 +79,7 @@ class Commands < Hash
def self.new prefix, exe
r = super()
r.exe = exe
r.prefix = prefix
r.exe, r.prefix = exe, prefix
r.on {|cmd, *argv| raise UnknownCommandError, 'Unknown Command: %s' % cmd }
r
end
@ -104,7 +121,7 @@ class Commands < Hash
c, *argv = self.cmd( argv)
(self[c] || @fallback_cmd).call c, *argv
rescue CommandError
STDERR.puts $!.message, $!.backtrace
STDERR.puts $!.message #, $!.backtrace
exit 1
end
alias call run
@ -126,11 +143,11 @@ class RunCave
end
attr_accessor :preargs, :cmd, :args, :log_level
attr_reader :dummy, :resumable
attr_reader :dummy
attr_writer :resume_file
def initialize preargs = nil, cmd = nil, args = nil
@resume_file, @preargs, @cmd, @args = nil, preargs || [], cmd || [], args || []
@colored = @dummy = @resumable = nil
@colored = @dummy = nil
end
def can_be_dummy
@ -141,14 +158,6 @@ class RunCave
def dummy!() @dummy = true; self end
def dummy=(v) @dummy = !!v; self end
def can_be_resumable
@resumable = true unless false == @resumable
self
end
def resumable?() @resumable end
def resumable!() @resumable = true; self end
def resumable=(v) @resumable = !!v; self end
def can_be_colored
@colored = true unless false == @colored
self
@ -157,10 +166,6 @@ class RunCave
def colored!() @colored = true; self end
def colored=(v) @colored = !!v; self end
def prepare_resume_file
resumable? ? ['--resume-file', @resume_file || raise(ResumeFileExpected)] : []
end
def prepare_colored
colored? ? ['--colour', 'yes'] : []
end
@ -172,8 +177,7 @@ class RunCave
def prepare
raise CommandExpected, "Set #{self}.cmd = yourcommand." if @cmd.nil? or @cmd.empty?
[
:cave, prepare_colored, prepare_log_level, @preargs,
@cmd, prepare_resume_file, *@args
:cave, prepare_colored, prepare_log_level, @preargs, @cmd, @args
].flatten.select{|x|x}.map {|x| x.to_s }
end
@ -213,60 +217,74 @@ class RunCave
alias call run_exit
end
# Shelled
# =======
#
# Some helper functions like for sudo and pager
class Shelled
class ExecutionError < Exception
end
class Caller
attr_accessor :pager, :argv
def initialize *argv
@argv, @pager = argv, false
end
# Calls exe while IRB::Pager redirect output to your PAGER.
def pager *args, &exe
if @nopager
exe.call *args
else
IRB::Pager::pager &lambda{ exe.call *args }
end
end
# Restarts, if not @nosudo and not root yet, your Truckle as root
def sudo *argv, &exe
if @nosudo or 0 == Process.egid
exe.call *argv
else
argv = [:sudo, @argv, argv].flatten.select{|x|x}.map {|x| x.to_s }
Kernel.exec *argv
raise ExecutionError, "Can't exec #{argv.shelljoin}"
end
end
end
attr_reader :caller
attr_accessor :_stack_
def argv() @caller.argv end
def initialize *argv
@caller = Caller.new *argv
@_stack_ = []
end
def to_proc() method(:call).to_proc end
def _push_ exe = nil, &block
n = dup
n._stack_ = @_stack_.dup
n._stack_.push block || exe
n
end
def method_missing meth, &block
n = _push_ {|*as, &b| @caller.send( meth, *as, &b) }
n = n._push_ block if block_given?
n
end
def call *args
@_stack_.reverse.inject {|s,b| lambda {|*as| b.call *as, &s } }.call *args
end
end
# Truckle
# =======
#
# cave-wrapper
class Truckle
class ExecutionError < Exception
end
# Calls exe while IRB::Pager redirect output to your PAGER.
def pager *args, &exe
if @nopager
exe.call
else
IRB::Pager::pager *args, &exe
end
end
# Restarts, if not @nosudo and not root yet, your Truckle as root
def sudo *args, &exe
if @nosudo or 0 == Process.egid
exe.call
else
exepath = File.join File.dirname( @argv0), @cmds.prefix
args = [:sudo, exepath, @params, *args].flatten.select{|x|x}.map {|x| x.to_s }
Kernel.exec *args
raise ExecutionError, "Can't exec #{args.shelljoin}"
end
end
# Your command will be called - if it will be called - with sudo.
def sudod exe = nil, &block
exe ||= block
lambda {|*args| sudo( *args) { exe.call *args } }
end
# Yout command will be called - if it will be called - with pager.
def pagered exe = nil, &block
exe ||= block
lambda {|*args| pager { exe.call *args } }
end
# Yout command will be called - if it will be called - with sudo first and second pager.
#
# cmds.on :hamster, &sudo_pagered {|cmd, *args| puts "Your hamster said: \"#{args.join ' '}\"" }
#
# It is shorter than:
#
# cmds.on( :hamster) {|cmd, *args| sudo( cmd, *args) { pager { puts "Your hamster said: \"#{args.join ' '}\"" } } }
def sudo_pagered exe = nil, &block
exe ||= block
lambda {|*args| sudo( *args) { pager { exe.call *args } } }
end
def markdown_format t, colored = nil
if colored
t = t.gsub( /^\t+/) {|indent| ' '*indent.length}
@ -289,6 +307,7 @@ class Truckle
# initialize our program.
@cave = RunCave.new
@cmds = Commands.new 'truckle', @exename
@shell = Shelled.new
prepare_commands
end
@ -343,20 +362,18 @@ Most commands are like by cave.
Resumable
=========
You do not need to set a resume-file. #{cmd} will determine it automaticaly. First, you can give a first argument for tagging. Tag must be numerical!
Resume will be defined via environment `CAVE_*_OPTIONS='--resume-file PATH'`, which is provided by `/etc/profile.d/cave.sh`.
#{cmd} -t 321 resolve netcat6
#{cmd} -t 321 do
If you do not give a tag, #{cmd} will use the actual terminal-device-number. If it isn't possible to determine terminal, the parent-pid will be used.
Old resumable-options via truckle will not be provided anymore.
So, there is no difference between truckle and cave anymore, you can mix it, both will be resumable.
Like cave but different
=======================
Some commands will be displayed by a pager, so you can scroll up and down like
truckle resolve WHAT # cave -cy resolve WHAT | less -R
truckle remove WHAT # cave -cy uninstall WHAT | less -R
truckle resolve WHAT # cave -cy resolve WHAT | less -r
truckle remove WHAT # cave -cy uninstall WHAT | less -r
Some commands are not displayed by a pager, but will execute:
@ -373,30 +390,24 @@ EOF
end
def prepare_commands
cmds, cave = @cmds, @cave
cmds, cave, s = @cmds, @cave, @shell
# default: simple use cave
cmds.on &sudod {|*args| cave.this(*args).() }
cmds.on &s.sudo {|*args| p on: args; cave.this(*args).() }
cmds.on :help, '-h', '--help', &pagered { STDOUT.puts helptext }
cmds.on :sync, &sudod { cave.sync.() }
cmds.on :search, :show, 'print-unused-distfiles', &sudo_pagered {|*args| cave.this(*args).() }
cmds.on :resolve, &sudo_pagered {|*args| cave.resumable!.this(*args).() }
cmds.on 'fix-linkage', &sudo_pagered {|*args|
cave.resumable!.this *args
cave.args.push '--', cave.prepare_resume_file
cave.resumable = false
cave.()
}
cmds.on :remove, &sudo_pagered {|cmd, *args| cave.resumable!.uninstall(*args).()}
cmds.on :upgrade, &sudo_pagered {|*args| cave.resumable!.this( *args).() }
cmds.on :install, &sudod {|cmd, *argv| cave.resumable!.resolve( '-x', *argv).() }
cmds.on :uninstall, &sudod {|cmd, *argv| cave.resumable!.uninstall( '-x', *argv).() }
cmds.on :help, '-h', '--help', &s.pager { STDOUT.puts helptext }
cmds.on :sync, &s.sudo {|cmd,*args| cave.this(*args).() }
cmds.on :search, :show, 'print-unused-distfiles', &s.sudo.pager {|*args| cave.this(*args).() }
cmds.on :resolve, 'fix-linkage', &s.sudo.pager {|*args| cave.this(*args).() }
cmds.on :remove, &s.sudo.pager {|cmd, *args| cave.uninstall(*args).()}
cmds.on :upgrade, &s.sudo.pager {|*args| cave.this( *args).() }
cmds.on :install, &s.sudo {|cmd, *argv| cave.resolve( '-x', *argv).() }
cmds.on :uninstall, &s.sudo {|cmd, *argv| cave.uninstall( '-x', *argv).() }
cmds.on :do, :resume, &sudod {|cmd, *args| cave.resumable!.resume( *args).() }
cmds.on :retry, &sudod {|*args| cave.resumable!.this( *args).() }
cmds.on :do, :resume, &s.sudo {|cmd, *args| cave.resume( *args).() }
cmds.on :retry, &s.sudo {|*args| cave.this( *args).() }
cmds.on '--list-commands', &pagered { puts cmds.map {|k,v| k } }
cmds.on '--list-commands', &s.pager { puts cmds.map {|k,v| k } }
end
def setup_params options
@ -407,11 +418,9 @@ EOF
end
end
opts = GetoptLong.new(
[ '-r', '--resume-file', GetoptLong::REQUIRED_ARGUMENT ],
[ '-h', '--help', GetoptLong::NO_ARGUMENT ],
[ '-C', '--list-commands', GetoptLong::NO_ARGUMENT ],
[ '-n', '--dummy', GetoptLong::NO_ARGUMENT ],
[ '-t', '--tag', GetoptLong::REQUIRED_ARGUMENT ],
[ '-p', '--pager', GetoptLong::REQUIRED_ARGUMENT ],
[ '-c', '--color', '--colour', GetoptLong::REQUIRED_ARGUMENT ],
[ '-L', '--log-level', GetoptLong::REQUIRED_ARGUMENT ],
@ -422,10 +431,8 @@ EOF
opts.each do |opt, arg|
case opt
when '-C' then options[:cmd] = '--list-commands'
when '-r' then options[:resume_file] = arg
when '-h' then options[:cmd] = 'help'
when '-n' then options[:dummy] = true
when '-t' then options[:tag] = arg
when '-p' then options[:pager] = on_off_auto[arg]
when '-c' then options[:color] = on_off_auto[arg]
when '-L' then options[:log_level] = arg
@ -439,7 +446,6 @@ EOF
def setup_env options
options[:dummy] = true if %w[1 true yes].include?( ENV['DUMMY'].to_s.downcase)
options[:sudo] = false if %w[1 true yes].include?( ENV['NOSUDO'].to_s.downcase)
options[:resume_file] = ENV['TRUCKLE_RESUME_FILE'] unless '' == ENV['TRUCKLE_RESUME_FILE'].to_s
options[:tty] = true if STDOUT.tty?
end
@ -451,17 +457,6 @@ EOF
@cave.can_be_colored if on_off_auto.( options[:color]) and options[:tty]
@nopager = true unless on_off_auto.( options[:pager]) or options[:tty]
@nosudo = true unless on_off_auto.( options[:sudo])
options[:resume_file] = if options[:tag]
"/tmp/truckle-resume-tag-#{options[:tag]}"
elsif options[:resume_file]
options[:resume_file]
elsif STDOUT.tty? and STDIN.tty? and STDOUT.stat.rdev == STDIN.stat.rdev
"/tmp/truckle-resume-dev-#{STDOUT.stat.rdev}"
else
"/tmp/truckle-resume-ppd-#{Process.ppid}"
end
@cave.resume_file = options[:resume_file]
end
def setup_recall options
@ -475,13 +470,12 @@ EOF
@params = [
param.( '--dummy', options[:dummy]),
param.( ['--resume-file', options[:resume_file]], options[:resume_file]),
param.( ['--tag', options[:tag]], options[:tag]),
param.( ['--log-level', options[:log_level]], options[:log_level]),
on_off_auto.( '--sudo', options[:sudo]),
on_off_auto.( '--color', options[:color]),
on_off_auto.( '--pager', options[:pager])
].flatten.select{|x|x}.map(&:to_s)
@shell.argv.push File.join( File.dirname( @argv0), @cmds.prefix), *@params
end
def run
@ -533,5 +527,7 @@ class Shortcut < Hash
end
end
Shortcut.run $0
Truckle.run $0
if __FILE__ == $0
Shortcut.run $0
Truckle.run $0
end