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Commit 567988a3 authored by Henri Chataing's avatar Henri Chataing
Browse files

pdl: Convert main from clap to argh 

clap has incompatible versions on aosp-master (3.2),
tm-mainline-prod (2.2) and emu-master-dev (4.1) making
it impossible to provide a main compatible with all branches.

argh is much more stable.

Test: cargo run tests/canonical/le_test_file.pdl
Change-Id: I9ffb5119e2e1e90562411c782f5cd4ccd926b93c
parent 05aae900

tools/pdl/Android.bp

+1 −1
Original line number Diff line number Diff line
@@ -11,7 +11,7 @@ rust_defaults { 
    name: "pdl_defaults",

    // LINT.IfChange

    rustlibs: [

        "libclap_3.2.23",

        "libargh",

        "libcodespan_reporting",

        "libheck",

        "libpest",

tools/pdl/Cargo.toml

+3 −3
Original line number Diff line number Diff line
@@ -12,12 +12,12 @@ default = ["serde"] 
[dependencies]

codespan-reporting = "0.11.1"

heck = "0.4.0"

pest = "2.4.0"

pest_derive = "2.4.0"

pest = "2.5.5"

pest_derive = "2.5.5"

proc-macro2 = "1.0.46"

quote = "1.0.21"

serde_json = "1.0.86"

clap = "3.2.23"

argh = "0.1.7"

syn = "1.0.102"



[dependencies.serde]

tools/pdl/src/main.rs

+10 −34
Original line number Diff line number Diff line 
//! PDL parser and analyzer.



use argh::FromArgs;

use codespan_reporting::term::{self, termcolor};



mod analyzer;
@@ -33,50 +34,25 @@ impl std::str::FromStr for OutputFormat { 
    }

}



#[derive(Debug)]

#[derive(FromArgs, Debug)]

/// PDL analyzer and generator.

struct Opt {

    /// Print tool version and exit.

    #[argh(switch)]

    /// print tool version and exit.

    version: bool,



    /// Generate output in this format ("json", "rust", "rust_no_alloc", "rust_no_alloc_test"). The output

    #[argh(option, default = "OutputFormat::JSON")]

    /// generate output in this format ("json", "rust", "rust_no_alloc", "rust_no_alloc_test"). The output

    /// will be printed on stdout in both cases.

    output_format: OutputFormat,



    /// Input file.

    #[argh(positional)]

    /// input file.

    input_file: String,

}



impl Opt {

    fn parse() -> Opt {

        let app = clap::App::new("Packet Description Language parser")

            .version("1.0")

            .arg(

                clap::Arg::with_name("input-file")

                    .value_name("FILE")

                    .help("Input PDL file")

                    .required(true),

            )

            .arg(

                clap::Arg::with_name("output-format")

                    .value_name("FORMAT")

                    .long("output-format")

                    .help("Output file format")

                    .takes_value(true)

                    .default_value("json")

                    .possible_values(["json", "rust", "rust_no_alloc", "rust_no_alloc_test"]),

            );

        let matches = app.get_matches();



        Opt {

            version: matches.is_present("version"),

            input_file: matches.value_of("input-file").unwrap().into(),

            output_format: matches.value_of("output-format").unwrap().parse().unwrap(),

        }

    }

}



fn main() -> Result<(), String> {

    let opt = Opt::parse();

    let opt: Opt = argh::from_env();



    if opt.version {

        println!("Packet Description Language parser version 1.0");