为perforce添加nothave命令，查找尚未添加到depot中的文件（in Ruby）

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以前在使用Perforce时犯过这样的错误：编写了新的文件，忘了添加到 Perforcedepot 中就匆匆submit，别人sync下来编译不过，影响团队进度。编写了一个Ruby脚本，用于检查当前client中有哪些文件没有添加到depot中，每次submit之前运行一下 p4nothave，就能知道还有哪些文件没有add进去。另外用 p4nothave | p4 -x - add 可以把这些文件都add到depot中。

基本思路，先用 p4 have 获得当前目录下有哪些文件是在depot中的，再遍历目录，找出不在depot的中的文件。在实现时要考虑到有些文件已经add但还没有submit，那么p4 have不会显示它，需要再运行p4 opened找出那些已经add却还没有submit的文件。

#!/usr/bin/env ruby
# Usage: p4nothave [paths]

require 'find'

def filter_out(f)
# filter out temp files
if File.basename(f) =~ /^\./
return true
end
false
end

def check_p4_output(firstline)
if firstline =~ /^Client '(.*?)' unknown/
puts "Client '#$1' unknown at path '#{Dir.getwd}'"
exit 1
end
end

def p4have(path)
have = IO.popen("p4 have 2>&1").readlines

check_p4_output(have[0])
in_depot = {}
have.each do |line|
# format of p4 have:
#
# //depot/trunk/hello#1 - /home/schen/p4client/trunk/hello
#
if line =~ /^.*? - (.*)$/
in_depot[$1] = 1
end
end
return in_depot
end

def p4added(path)
opened = IO.popen("p4 opened 2>&1").readlines

check_p4_output(opened[0])
in_depot = {}
opened.each do |line|
# format of p4 opened:
#
# //depot/trunk/p4scripts/p4nothave.rb#1 - add default change (text)
#
if line =~ /^(.*?)((#|@)(.*?))? - add/
# get the local filename from remote filename
# format of p4 where:
#
# //depot/trunk/temp //schen_asus_1/trunk/temp /home/schen/p4client/trunk/temp
#
`p4 where #$1` =~ /^(.*) (.*) (.*)/
in_depot[$3] = 1
end
end
return in_depot
end

def nothave(path)
in_depot = p4have(path).merge(p4added(path))
Find.find(path) do |f|
if File.file?(f) && !in_depot.include?(File.expand_path(f))
if !filter_out(f)
puts f
end
end
end
end

paths = ARGV.empty? ? ["."] : ARGV
paths.each do |path|
nothave(path)
end

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