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Commit bf59972d authored by Martin Geisler's avatar Martin Geisler
Browse files

PDL: Add a ‘Cargo.toml’ for speedy local development 

The file is kept in sync with the source-of-truth ‘Android.bp’ file
via a lint check.

Test: cargo test
Change-Id: I68e7b2a86baf90ad18bd8c9c447e6bb66ec28cad
parent 6061befb

tools/pdl/Android.bp

+6 −4
Original line number Diff line number Diff line
@@ -10,21 +10,23 @@ package { 
rust_defaults {

    name: "pdl_defaults",

    srcs: ["src/main.rs"],

    // LINT.IfChange

    rustlibs: [

        "libanyhow",

        "libcodespan_reporting",

        "libpest",

        "libproc_macro2",

        "libquote",

        "libserde",

        "libserde_json",

        "libstructopt",

        "libcodespan_reporting",

        "libquote",

        "libsyn",

        "libproc_macro2",

        "libanyhow",

        "libtempfile",

    ],

    proc_macros: [

        "libpest_derive",

    ],

    // LINT.ThenChange(Cargo.toml)

}



rust_binary_host {

tools/pdl/Cargo.toml

0 → 100644
+19 −0
Original line number Diff line number Diff line 
[package]

name = "pdl"

version = "0.1.0"

edition = "2021"



[workspace]



[dependencies]

anyhow = "*"

codespan-reporting = "*"

pest = "*"

pest_derive = "*"

proc-macro2 = "*"

quote = "*"

serde = { version = "*", features = ["default", "derive", "serde_derive", "std"] }

serde_json = "*"

structopt = "*"

syn = "*"

tempfile = "*"

tools/pdl/src/test_utils.rs

+17 −2
Original line number Diff line number Diff line
@@ -6,6 +6,22 @@ use std::io::Write; 
use std::process::{Command, Stdio};

use tempfile::NamedTempFile;



/// Search for a binary in `$PATH` or as a sibling to the current

/// executable (typically the test binary).

fn find_binary(name: &str) -> Option<std::path::PathBuf> {

    let mut current_exe = std::env::current_exe().unwrap();

    current_exe.pop();

    let paths = std::env::var_os("PATH").unwrap();

    for mut path in std::iter::once(current_exe).chain(std::env::split_paths(&paths)) {

        path.push(name);

        if path.exists() {

            return Some(path);

        }

    }



    None

}



/// Parse a string fragment as a PDL file.

///

/// # Panics
@@ -23,8 +39,7 @@ pub fn parse_str(text: &str) -> ast::Grammar { 
/// Panics if `rustfmt` cannot be found in the same directory as the

/// test executable or if it returns a non-zero exit code.

pub fn rustfmt(input: &str) -> String {

    let mut rustfmt_path = std::env::current_exe().unwrap();

    rustfmt_path.set_file_name("rustfmt");

    let rustfmt_path = find_binary("rustfmt").expect("cannot find rustfmt");

    let mut rustfmt = Command::new(&rustfmt_path)

        .stdin(Stdio::piped())

        .stdout(Stdio::piped())