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Experiment with futures

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This commit is contained in:
Adrian Heine 2020-08-16 11:08:22 +02:00
parent 907fbf95db
commit 2d3e3688fa
44 changed files with 2081 additions and 1242 deletions
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34
src/symbols/user.rs
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@ -1,5 +1,6 @@
use crate::command_runner::CommandRunner;
use crate::symbols::Symbol;
use async_trait::async_trait;
use std::error::Error;
#[derive(Debug)]
@ -17,11 +18,13 @@ impl<U, C> User<U, C> {
}
}
#[async_trait(?Send)]
impl<U: AsRef<str>, C: CommandRunner> Symbol for User<U, C> {
fn target_reached(&self) -> Result<bool, Box<dyn Error>> {
async fn target_reached(&self) -> Result<bool, Box<dyn Error>> {
let output = self
.command_runner
.run_with_args("getent", args!["passwd", self.user_name.as_ref()])?;
.run_with_args("getent", args!["passwd", self.user_name.as_ref()])
.await?;
match output.status.code() {
Some(2) => Ok(false),
Some(0) => Ok(true),
@ -29,21 +32,24 @@ impl<U: AsRef<str>, C: CommandRunner> Symbol for User<U, C> {
}
}
fn execute(&self) -> Result<(), Box<dyn Error>> {
self.command_runner.run_successfully(
"adduser",
args![
// "-m", // Necessary for Fedora, not accepted in Debian
"--system",
self.user_name.as_ref(),
],
)?;
Ok(())
async fn execute(&self) -> Result<(), Box<dyn Error>> {
self
.command_runner
.run_successfully(
"adduser",
args![
// "-m", // Necessary for Fedora, not accepted in Debian
"--system",
self.user_name.as_ref(),
],
)
.await
}
}
#[cfg(test)]
mod test {
use crate::async_utils::run;
use crate::command_runner::StdCommandRunner;
use crate::symbols::user::User;
use crate::symbols::Symbol;
@ -54,7 +60,7 @@ mod test {
user_name: "nonexisting",
command_runner: StdCommandRunner,
};
assert_eq!(symbol.target_reached().unwrap(), false);
assert_eq!(run(symbol.target_reached()).unwrap(), false);
}
#[test]
@ -63,6 +69,6 @@ mod test {
user_name: "root",
command_runner: StdCommandRunner,
};
assert_eq!(symbol.target_reached().unwrap(), true);
assert_eq!(run(symbol.target_reached()).unwrap(), true);
}
}