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class RunContext
## accessors {{{
attr_accessor( *%w[
all detach wait new_term
files handlers paths
mode
exec
multi
])
attr_reader( :flags )
def flags=(x)
assert x, Array, String
if x.is_a? Array
@flagstring = x.join('')
@flags = x
elsif x.is_a? String
@flagstring = x
@flags = x.split(//)
end
parse_flags
return x
end
## }}}
def initialize(files, mode=0, flags='')
@mode = mode.to_i
@files = files.dup
self.flags = flags
@files.reject! {|file|
file.handler == nil or !file.exists?
}
@handlers = @files.map {|file| file.handler}
@paths = @files.map {|file| file.path}
@handler = @handlers.first
@multi = (@files.size > 1 and @handlers.uniq.size == 1)
@exec = Application.send(@handler, self)
end
def has_flag? x
if x.is_a? Regexp
@flagstring =~ x
elsif x.is_a? String
@flags.include? x
else
false
end
end
def parse_flags
@all = @detach = @new_term = @wait = false
## Positive flags
if has_flag? 'a'
@all = true
end
if has_flag? /[de]/
@detach = true
end
if has_flag? 't'
@new_term = true
@detach = true
end
if has_flag? 'w'
@wait = true
end
## Negative flags
if has_flag? 'A'
@all = false
end
if has_flag? /[DE]/
@detach = false
end
if has_flag? 'T'
@new_term = false
end
if has_flag? 'W'
@wait = false
end
end
def newway() true end
def no_mode?()
@mode == 0
end
def no_flags?()
@flagstring.empty?
end
def default_flags=(x)
if @flagstring.empty?
self.flags = x
end
x
end
## set the mode and return self.
def with_mode(n)
@mode = n
self
end
## wrapper {{{
## escape all files for direct use in the shell.
## if the _multi_ attribute is true, this is a shortcut for
## rc.paths.map {|x| ~x}.join(' ')
## otherwise:
## ~(rc.paths.first)
def ~
if @multi
@paths.map {|x| ~x}.join(' ')
else
~@paths.first
end
end
## escape one (the first) file for direct use in the shell.
## this is a shortcut for:
## ~(rc.paths.first)
def one
~@paths.first
end
## shortcut for _files.size_
def size() @files.size end
## shortcut for _files.first.path_
def first() @files.first end
## shortcut for _files.first.name_
def name() @files.first.name end
## }}}
end
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