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bitwarden_rs/build.rs

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Rust
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use std::process::Command;
use std::env;
fn main() {
// This allow using #[cfg(sqlite)] instead of #[cfg(feature = "sqlite")], which helps when trying to add them through macros
#[cfg(feature = "sqlite")]
println!("cargo:rustc-cfg=sqlite");
#[cfg(feature = "mysql")]
println!("cargo:rustc-cfg=mysql");
#[cfg(feature = "postgresql")]
println!("cargo:rustc-cfg=postgresql");
#[cfg(not(any(feature = "sqlite", feature = "mysql", feature = "postgresql")))]
compile_error!("You need to enable one DB backend. To build with previous defaults do: cargo build --features sqlite");
if let Ok(version) = env::var("BWRS_VERSION") {
println!("cargo:rustc-env=BWRS_VERSION={}", version);
println!("cargo:rustc-env=CARGO_PKG_VERSION={}", version);
} else {
read_git_info().ok();
}
}
fn run(args: &[&str]) -> Result<String, std::io::Error> {
let out = Command::new(args[0]).args(&args[1..]).output()?;
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if !out.status.success() {
use std::io::{Error, ErrorKind};
return Err(Error::new(ErrorKind::Other, "Command not successful"));
}
Ok(String::from_utf8(out.stdout).unwrap().trim().to_string())
}
/// This method reads info from Git, namely tags, branch, and revision
fn read_git_info() -> Result<(), std::io::Error> {
// The exact tag for the current commit, can be empty when
// the current commit doesn't have an associated tag
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let exact_tag = run(&["git", "describe", "--abbrev=0", "--tags", "--exact-match"]).ok();
if let Some(ref exact) = exact_tag {
println!("cargo:rustc-env=GIT_EXACT_TAG={}", exact);
}
// The last available tag, equal to exact_tag when
// the current commit is tagged
let last_tag = run(&["git", "describe", "--abbrev=0", "--tags"])?;
println!("cargo:rustc-env=GIT_LAST_TAG={}", last_tag);
// The current branch name
let branch = run(&["git", "rev-parse", "--abbrev-ref", "HEAD"])?;
println!("cargo:rustc-env=GIT_BRANCH={}", branch);
// The current git commit hash
let rev = run(&["git", "rev-parse", "HEAD"])?;
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let rev_short = rev.get(..8).unwrap_or_default();
println!("cargo:rustc-env=GIT_REV={}", rev_short);
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// Combined version
let version = if let Some(exact) = exact_tag {
exact
} else if &branch != "master" {
format!("{}-{} ({})", last_tag, rev_short, branch)
} else {
format!("{}-{}", last_tag, rev_short)
};
println!("cargo:rustc-env=BWRS_VERSION={}", version);
println!("cargo:rustc-env=CARGO_PKG_VERSION={}", version);
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// To access these values, use:
// env!("GIT_EXACT_TAG")
// env!("GIT_LAST_TAG")
// env!("GIT_BRANCH")
// env!("GIT_REV")
// env!("BWRS_VERSION")
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Ok(())
}