ruby - 从 crontab 运行的 Ruby 脚本运行系统调用时出现错误 32512

Question

当从用户的 crontab 运行时，我无法让 Ruby 脚本正常工作。当您以该用户身份从终端运行它时，它工作正常。当从 crontab 运行时，系统调用失败。

这是脚本；

#!/usr/bin/ruby

require "net/http"
require "logger"
require "pp"

begin
        Dir.chdir("wca")
        time1 = Time.new
        filename = "updated" + "_" + time1.hour.to_s + "_" + time1.min.to_s + "_" + time1.sec.to_s + ".log"
        log = Logger.new(filename) 
        log.debug "===Checking For New Build"
        source = Net::HTTP.get('yr-qa-svr2', '/Wave/index.html')
        myFile = File.new("data/old.html","rb")
        old = myFile.read
        myFile.close

        if old != source then
            log.debug "   Server Version Changed, running tests"
            status = system("runWatir","webdriver.rb")
            if status then
                log.debug "   Command run correctly"
                myFile = File.new("data/old.html","w")
                myFile.puts source
                myFile.close
            else
                log.debug "   Failed to run command"
                log.debug "   Error number " + $?.to_s
            end
        else
            log.debug "   No Updates to Server Version"
        end
rescue Exception => e  
      print "Exception occured: " + e  + "\n"
      print e.backtrace
end 

当由 crontab 运行时会产生此日志；

    # Logfile created on Fri Jun 24 02:00:01 +0100 2011 by logger.rb/22285
    D, [2011-06-24T02:00:01.333921 #4409] DEBUG -- : ===Checking For New Build
    D, [2011-06-24T02:00:01.433632 #4409] DEBUG -- :    Server Version Changed, running tests
    D, [2011-06-24T02:00:01.462700 #4409] DEBUG -- :    Failed to run command
    D, [2011-06-24T02:00:01.462919 #4409] DEBUG -- :    Error number 32512

runWatir 命令是位于 wca 目录中的 bash shell 脚本。

#!/bin/bash
rm logs/*.log
rm logs/*.png
export DATE=`date`
ruby -W0 $1|tee logs/$1.log
export RESULT=`grep assertions logs/$1.log`
export TIMED=`grep Finished logs/$1.log`
export BUILD=`cat logs/build.log`
ruby library/GenEmailMsg.rb "WATIR Results for $DATE" "Attached are the results from the WATIR automated test [$1] run with $BUILD..The results are $RESULT..$TIMED" logs/$1.log

我的菜鸟错误是什么？

Answer 1

cron 作业作为具有不同环境变量集的不同用户运行。您的 PATH、rvm 设置等将不可用，除非您手动设置它们。我猜你会被其中之一击中。要尝试的是确保 cron 作业和常规 shell 中的 ruby​​ 版本相同，用户相同，路径相同。