2017-11-16 23:30:08 -08:00
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use common::*;
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pub trait CommandExt {
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fn export_environment_variables<'a>(
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&mut self,
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scope: &Map<&'a str, String>,
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exports: &Set<&'a str>
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2017-11-17 17:28:06 -08:00
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) -> RunResult<'a, ()>;
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2017-11-16 23:30:08 -08:00
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}
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impl CommandExt for Command {
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fn export_environment_variables<'a>(
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&mut self,
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scope: &Map<&'a str, String>,
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exports: &Set<&'a str>
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2017-11-17 17:28:06 -08:00
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) -> RunResult<'a, ()> {
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2017-11-16 23:30:08 -08:00
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for name in exports {
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if let Some(value) = scope.get(name) {
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self.env(name, value);
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} else {
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return Err(RuntimeError::Internal {
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message: format!("scope does not contain exported variable `{}`", name),
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});
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}
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}
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Ok(())
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}
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}
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