从 jenkins 调用的 Minicom 脚本在退出 '! killall -9 minicom'

Question

我设法制作了一个脚本，它通过 minicom 发送一些命令并将它们存储在 output.txt 中。调用minicom的脚本叫做dut.sh

#!/bin/bash

echo "Setting up DUT" 
stm_armv7 -print "DUT"
stm_armv7 -dut
echo "wait 30s"
sleep 30s

stty -F /dev/ttyACM0 115200 cs8 -cstopb -parenb
rm /home/fsnk/scripts/serial-com/output.txt
export TERM=linux-c-nc
minicom -b 115200 -D /dev/ttyACM0 -C /home/fsnk/scripts/serial-com/output.txt -S /home/fsnk/scripts/serial-com/serial -o 
echo "wait another 5s"
sleep 5s
stm_armv7 -ts 

所以在minicom 命令上，我给出了另一个名为serial 的文件，其中包含一些运行脚本代码。

# UNIX login script.
# Can be used to automatically login to almost every UNIX box.
#
# Some variables.
set a 0
set b a
print Trying to Login..
# Skip initial 'send ""', it seems to matter sometimes..
send ""
goto login

login:
if a > 3 goto failed1
expect {
    "ogin:"       send "root"  
    "assword:"    send ""
    timeout 5    goto loop1
   
}
goto loop1

loop1:
send "systemctl is-system-running --wait"
sleep 3
# Send command not more than three times.
inc b
if b > 3 goto failed1
expect {
    "\nrunning"    goto success1
    break
    "degrading"  goto success2        
    break
    timeout 5    goto failed2
   
}

success1:    
print \nSuccessfully received running!
! killall -9 minicom
exit

success2:
print \nSuccessfully received degrading!
! killall -9 minicom
exit

failed1:
print \nConnection Failed (wrong password?)
! killall -9 minicom
exit

failed2: 
print \nMessage sending failed. Didn't receive anything!
! killall -9 minicom
exit

命令! killall -9 minicom 根据manual 杀死minicom 终端。正如我之前提到的，当我在本地运行它时，或者当我从本地机器通过 ssh 调用脚本时，它运行正常。当我从 jenkins 运行它时会出现问题。

output.txt 文件已创建，但在 Jenkins 上仍为空，我收到如下 minicom 消息：

Setting up DUT
wait 30s

Welcome to minicom 2.7

OPTIONS: I18n 
Compiled on Apr 22 2017, 09:14:19.
Port /dev/ttyACM0, 16:30:57

Press CTRL-A Z for help on special keys

/home/fsnk/scripts/serial-com/dut.sh: line 12:  5639 Killed                  minicom -b 115200 -D /dev/ttyACM0 -C /home/fsnk/scripts/serial-com/output.txt -S /home/fsnk/scripts/serial-com/serial -o
wait another 5s

Finished: SUCCESS

在消息Press CTRL-A Z for help on special keys 之后，我希望它登录到板（没有密码，只有root 用户）并运行systemctl is-system-running --wait。所有输出必须在 output.txt 上

同样，当手动运行或通过 SSH 从我的机器触发时，这可以正常工作，但是当从 Jenkins 触发时（添加了一个构建步骤 execute shell，它尝试 SSH 并启动脚本）它不起作用。

此时我觉得这是一个 minicom 问题，在这种情况下，我欢迎使用 screen 的任何解决方案

Answer 1

我相信这是因为 killall 导致 minicom 向操作系统返回错误代码，Jenkins 评估并因此认为它是失败的。如果这是原因，您可以添加一个 try/catch 块来标记构建不稳定或成功。