dtluna
6 years ago
parent
40803ced8b
commit
0bdffc7571
3 changed files with 36 additions and 9 deletions
@ -1,21 +1,39 @@ |
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package main |
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|
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import ( |
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"flag" |
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"os" |
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common "source.heropunch.io/tomo/go-coreutils" |
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) |
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"os/exec" |
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var ignoreEnv = flag.Bool( |
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"i", |
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false, |
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"Completely ignore the existing environment and execute cmd only with each (var, value) tuple specified.", |
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"gopkg.in/alecthomas/kingpin.v2" |
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common "source.heropunch.io/tomo/go-coreutils" |
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) |
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func main() { |
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flag.Parse() |
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app := kingpin.New("env", "modify the environment, then print it or run a command") |
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ignoreEnv := kingpin.Flag( |
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"ignore-environment", |
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"Completely ignore the existing environment and execute cmd only with each (var, value) tuple specified.", |
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).Short('i').Bool() |
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unset := kingpin.Flag("unset", "Unset var in the environment.").PlaceHolder("var").Short('u').Strings() |
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cmd := kingpin.Arg("cmd", "").String() |
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args := kingpin.Arg("args", "").Strings() |
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kingpin.Parse() |
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for _, key := range *unset { |
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os.Unsetenv(key) |
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} |
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if *ignoreEnv { |
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os.Clearenv() |
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} |
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common.PrintEnv() |
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if *cmd == "" { |
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common.PrintEnv() |
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os.Exit(0) |
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} |
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command := exec.Command(*cmd, *args...) |
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err := command.Run() |
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app.FatalIfError(err, "error running command:") |
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} |
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@ -1,6 +1,9 @@ |
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module source.heropunch.io/tomo/go-coreutils |
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require ( |
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github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc // indirect |
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github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf // indirect |
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github.com/alexflint/go-arg v1.0.0 |
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github.com/stretchr/testify v1.3.0 |
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gopkg.in/alecthomas/kingpin.v2 v2.2.6 |
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) |
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|
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