46 lines
1.6 KiB
Rust
46 lines
1.6 KiB
Rust
use std::{
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env,
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io::{self, Write as _},
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process::Command,
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};
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use super::DynError;
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/// Print the command and its arguments as if the user had typed them
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pub fn print_cmd(cmd: &Command) {
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print!("{} ", cmd.get_program().to_string_lossy());
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for arg in cmd.get_args() {
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print!("{} ", arg.to_string_lossy());
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}
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println!();
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}
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/// Prompt user before running a command
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///
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/// Adapted from [miri](https://github.com/rust-lang/miri/blob/dba35d2be72f4b78343d1a0f0b4737306f310672/cargo-miri/src/util.rs#L181-L204)
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pub fn ask_to_run(mut cmd: Command, ask: bool, reason: &str) -> Result<(), DynError> {
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// Disable interactive prompts in CI (GitHub Actions, Travis, AppVeyor, etc).
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// Azure doesn't set `CI` though (nothing to see here, just Microsoft being Microsoft),
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// so we also check their `TF_BUILD`.
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let is_ci = env::var_os("CI").is_some() || env::var_os("TF_BUILD").is_some();
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if ask && !is_ci {
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let mut buf = String::new();
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print!("The script is going to run: \n\n`{cmd:?}`\n\n To {reason}.\nProceed? [Y/n] ",);
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io::stdout().flush().unwrap();
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io::stdin().read_line(&mut buf).unwrap();
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match buf.trim().to_lowercase().as_ref() {
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"" | "y" | "yes" => {}
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"n" | "no" => return Err("Aborting as per your request".into()),
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a => return Err(format!("Invalid answer `{a}`").into()),
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};
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} else {
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eprintln!("Running `{cmd:?}` to {reason}.");
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}
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let status = cmd.status()?;
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if !status.success() {
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return Err(format!("failed to {reason}: {status}").into());
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}
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Ok(())
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}
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