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Expect 脚本在输入值后会继续

tag-icon • tag-icon scripting expect suse zypper
Expect 脚本在输入值后会继续

我编写了以下期望脚本：

#!/usr/bin/expect -f
set timeout 10
spawn zypper in --no-recommends pdns
expect {
  -re {^.* Solution (\d): (?:break pdns)} {
    set solution "$expect_out(1,string)"
    exp_continue
  }
  "Choose from above solutions by number or cancel" {
   puts "$solution"
   send "\r"
  }
}

该程序$solution正确地放置了我的位置（在下面的示例中，“3”被正确放置），但是随后中止执行，看似发送回车符，但不会使我正在生成的 zypper 命令继续：

suse-test-647578bd8-95qsc:/ # ./install-pdns.expect 
spawn zypper in --no-recommends pdns
Refreshing service 'container-suseconnect-zypp'.
Problem retrieving the repository index file for service 'container-suseconnect-zypp':
[container-suseconnect-zypp|file:/usr/lib/zypp/plugins/services/container-suseconnect-zypp] 
Warning: Skipping service 'container-suseconnect-zypp' because of the above error.
Loading repository data...
Reading installed packages...
Resolving package dependencies...

Problem: the to be installed pdns-4.6.2-lp154.186.32.x86_64 requires 'systemd', but this requirement cannot be provided
  not installable providers: systemd-249.11-150400.6.8.x86_64[SLE_BCI]
 Solution 1: Following actions will be done:
  remove lock to allow installation of systemd-249.11-150400.6.8.x86_64[SLE_BCI]
  remove lock to allow installation of systemd-default-settings-branding-SLE-0.7-3.2.1.noarch[SLE_BCI]
  remove lock to allow installation of systemd-presets-branding-SLE-15.1-20.8.1.noarch[SLE_BCI]
  remove lock to allow installation of systemd-default-settings-0.7-3.2.1.noarch[SLE_BCI]
  remove lock to allow installation of systemd-presets-common-SUSE-15-150100.8.12.1.noarch[SLE_BCI]
 Solution 2: do not install pdns-4.6.2-lp154.186.32.x86_64
 Solution 3: break pdns-4.6.2-lp154.186.32.x86_64 by ignoring some of its dependencies

Choose from above solutions by number or cancel [1/2/3/c/d/?] (c): 3

suse-test-647578bd8-95qsc:/ #

我尝试将单独的putsand sendto组合起来puts "$solution\r"，但它会在不输入值的情况下中止。

我尝试添加

eof { exp_continue }
"Installing:" { exp_continue }
eof {}

到expect街区，并另外尝试期待eof现有街区之外expect。似乎两者都没有使zypper命令继续下去。

澄清一下：在手动执行时，zypper需要“3”，然后“输入”，然后继续安装包（因此随后尝试等待“安装：”）。

我将不胜感激任何有关其他尝试的建议！

谢谢阅读！

答案1

使用@meuth的建议和exp_continue：

#!/usr/bin/expect -f
set timeout 10
spawn zypper in --no-recommends pdns
expect {
  -re {^.* Solution (\d): (?:break pdns)} {
    set solution "$expect_out(1,string)"
    exp_continue
  }
  "Choose from above solutions by number or cancel" {
   send "$solution\r"
   exp_continue
  }
  eof {}
}

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