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|
# vcs
ENV.delete('PWD')
unless File.respond_to? :realpath
require 'pathname'
def File.realpath(arg)
Pathname(arg).realpath.to_s
end
end
def IO.pread(*args)
STDERR.puts(*args.inspect) if $DEBUG
popen(*args) {|f|f.read}
end
if RUBY_VERSION < "1.9"
class IO
@orig_popen = method(:popen)
if defined?(fork)
def self.popen(command, *rest, &block)
if !(Array === command)
@orig_popen.call(command, *rest, &block)
elsif block
@orig_popen.call("-", *rest) {|f| f ? yield(f) : exec(*command)}
else
@orig_popen.call("-", *rest) or exec(*command)
end
end
else
require 'shellwords'
def self.popen(command, *rest, &block)
command = command.shelljoin if Array === command
@orig_popen.call(command, *rest, &block)
end
end
end
end
class VCS
class NotFoundError < RuntimeError; end
@@dirs = []
def self.register(dir)
@@dirs << [dir, self]
end
def self.detect(path)
@@dirs.each do |dir, klass|
return klass.new(path) if File.directory?(File.join(path, dir))
prev = path
loop {
curr = File.realpath(File.join(prev, '..'))
break if curr == prev # stop at the root directory
return klass.new(path) if File.directory?(File.join(curr, dir))
prev = curr
}
end
raise VCS::NotFoundError, "does not seem to be under a vcs: #{path}"
end
def initialize(path)
@srcdir = path
super()
end
NullDevice = defined?(IO::NULL) ? IO::NULL :
%w[/dev/null NUL NIL: NL:].find {|dev| File.exist?(dev)}
# return a pair of strings, the last revision and the last revision in which
# +path+ was modified.
def get_revisions(path)
path = relative_to(path)
last, changed, modified, *rest = (
begin
if NullDevice
save_stderr = STDERR.dup
STDERR.reopen NullDevice, 'w'
end
self.class.get_revisions(path, @srcdir)
ensure
if save_stderr
STDERR.reopen save_stderr
save_stderr.close
end
end
)
last or raise VCS::NotFoundError, "last revision not found"
changed or raise VCS::NotFoundError, "changed revision not found"
if modified
/\A(\d+)-(\d+)-(\d+)\D(\d+):(\d+):(\d+(?:\.\d+)?)\s*(?:Z|([-+]\d\d)(\d\d))\z/ =~ modified or
raise "unknown time format - #{modified}"
begin
modified = Time.new(*$~[1..6].map(&:to_i), ($7 ? "#{$7}:#{$8}" : "+00:00"))
rescue ArgumentError
modified = Time.utc(*$~[1..6]) + $7.to_i * 3600 + $8.to_i * 60
end
end
return last, changed, modified, *rest
end
def relative_to(path)
if path
srcdir = File.realpath(@srcdir)
path = File.realpath(path)
list1 = srcdir.split(%r{/})
list2 = path.split(%r{/})
while !list1.empty? && !list2.empty? && list1.first == list2.first
list1.shift
list2.shift
end
if list1.empty? && list2.empty?
"."
else
([".."] * list1.length + list2).join("/")
end
else
'.'
end
end
class SVN < self
register(".svn")
def self.get_revisions(path, srcdir = nil)
if srcdir and %r'\A(?:[^/]+:|/)' !~ path
path = File.join(srcdir, path)
end
info_xml = IO.pread(%W"svn info --xml #{path}")
_, last, _, changed, _ = info_xml.split(/revision="(\d+)"/)
modified = info_xml[/<date>([^<>]*)/, 1]
[last, changed, modified]
end
end
class GIT < self
register(".git")
def self.get_revisions(path, srcdir = nil)
logcmd = %W[git log -n1 --date=iso]
logcmd[1, 0] = ["-C", srcdir] if srcdir
logcmd << "--grep=^ *git-svn-id: .*@[0-9][0-9]*"
idpat = /git-svn-id: .*?@(\d+) \S+\Z/
last = IO.pread(logcmd)[idpat, 1]
if path
log = IO.pread(logcmd + [path])
changed = log[idpat, 1]
else
changed = last
end
modified = log[/^Date:\s+(.*)/, 1]
[last, changed, modified]
end
end
end
|
