rust/Cargo.toml at 5075c77957e127be51e1b5271567f906abeb50c6 - rust - nordic-dev.net

nordic-dev.net/rust

mirror of https://github.com/rust-lang/rust.git synced 2024-11-25 00:03:43 +00:00

Pascal Hertleif 5075c77957 Use anyhow::Result in xtask, add contexts

This builds on #2231 but was actually done before that. You see, the
cause for #2231 was that I got this error message:

    Error: Error { kind: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) }

Just switching to `anyhow::Result` got me stack traces (when setting
`RUST_LIB_BACKTRACE=1`) that at least showed

    stack backtrace:
      0: std::backtrace::Backtrace::create
      1: std::backtrace::Backtrace::capture
      2: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
      3: xtask::install_server
      4: xtask::install
      5: xtask::main
      6: std::rt::lang_start::{{closure}}
      7: std::panicking::try::do_call
      8: __rust_maybe_catch_panic
      9: std::rt::lang_start_internal
      10: std::rt::lang_start
      11: main

With the added contexts (not at all exhaustive), the error became

    Error: install server

    Caused by:
        0: build AutoCfg with target directory
        1: No such file or directory (os error 2)

Since anyhow is such a small thing (no new transitive dependencies!),
and in general gives you `Result<T, Box<dyn Error>>` on steroids, I
think this a nice small change. The only slightly annoying thing was to
replace all the `Err(format!(…))?` calls (haven't even looked at whether
we can make it support wrapping strings though), but the `bail!` macro
is shorter anyway :)

2019-11-13 20:51:57 +01:00

17 lines

308 B

TOML

Raw Blame History

 [package]
 edition = "2018"
 name = "xtask"
 version = "0.1.0"
 authors = ["rust-analyzer developers"]
 publish = false
 [dependencies]
 autocfg = "0.1"
 walkdir = "2.1.3"
 pico-args = "0.3.0"
 quote = "1.0.2"
 proc-macro2 = "1.0.1"
 ron = "0.5.1"
 serde = { version = "1.0.0", features = ["derive"] }
 anyhow = "1.0.19"