Line data    Source code

       1             : use anyhow::{anyhow, Result};
       2             : 
       3             : macro_rules! declare_const {
       4             :     ($var: ident) => {
       5             :         pub const $var: &str = stringify!($var);
       6             :     };
       7             : }
       8             : 
       9             : declare_const!(CARGO);
      10             : declare_const!(CARGO_CRATE_NAME);
      11             : declare_const!(CARGO_HOME);
      12             : declare_const!(CARGO_INCREMENTAL);
      13             : declare_const!(CARGO_MANIFEST_DIR);
      14             : declare_const!(CARGO_PKG_NAME);
      15             : declare_const!(CARGO_PRIMARY_PACKAGE);
      16             : declare_const!(CARGO_TARGET_DIR);
      17             : declare_const!(CARGO_TERM_COLOR);
      18             : declare_const!(CI);
      19             : declare_const!(CLIPPY_DISABLE_DOCS_LINKS);
      20             : declare_const!(CLIPPY_DRIVER_PATH);
      21             : declare_const!(DOCS_RS);
      22             : declare_const!(DYLINT_DRIVER_PATH);
      23             : declare_const!(DYLINT_LIBRARY_PATH);
      24             : declare_const!(DYLINT_LIBS);
      25             : declare_const!(DYLINT_LIST);
      26             : declare_const!(DYLINT_METADATA);
      27             : declare_const!(DYLINT_NO_DEPS);
      28             : declare_const!(DYLINT_RUSTFLAGS);
      29             : declare_const!(DYLINT_TOML);
      30             : declare_const!(OUT_DIR);
      31             : declare_const!(PATH);
      32             : declare_const!(RUSTC);
      33             : declare_const!(RUSTC_WORKSPACE_WRAPPER);
      34             : declare_const!(RUSTFLAGS);
      35             : declare_const!(RUSTUP_HOME);
      36             : declare_const!(RUSTUP_TOOLCHAIN);
      37             : declare_const!(RUST_BACKTRACE);
      38             : declare_const!(TARGET);
      39             : 
      40             : /// Returns true if the environment variable `key` is set to a non-zero value.
      41             : ///
      42             : /// # Examples
      43             : ///
      44             : /// ```
      45             : /// use dylint_internal::env::enabled;
      46             : /// use std::env;
      47             : ///
      48             : /// env::set_var("FOO", "1");
      49             : /// assert_eq!(enabled("FOO"), true);
      50             : ///
      51             : /// env::set_var("FOO", "0");
      52             : /// assert_eq!(enabled("FOO"), false);
      53             : ///
      54             : /// env::remove_var("FOO");
      55             : /// assert_eq!(enabled("FOO"), false);
      56             : /// ```
      57             : #[must_use]
      58           0 : pub fn enabled(key: &str) -> bool {
      59           0 :     std::env::var(key).map_or(false, |value| value != "0")
      60           0 : }
      61             : 
      62             : /// A wrapper around `std::env::var` that converts the error into an `anyhow::Error`.
      63          89 : pub fn var(key: &str) -> Result<String> {
      64          89 :     std::env::var(key).map_err(|err| anyhow!(format!("{err}: {key}")))
      65          89 : }