1 use crate::error::CommandError;

     2 use crate::ui::Ui;

     3 use clap::Arg;

     4 use clap::ArgMatches;

     5 use format_bytes::format_bytes;

     6 use hg::config::Config;

     7 use hg::errors::HgError;

     8 use hg::repo::Repo;

     9 use hg::utils::SliceExt;

    10 use std::path::Path;

    11 

    12 pub const HELP_TEXT: &str = "

    13 With one argument of the form section.name, print just the value of that config item.

    14 ";

    15 

    16 pub fn args() -> clap::App<'static, 'static> {

    17     clap::SubCommand::with_name("config")

    18         .arg(

    19             Arg::with_name("name")

    20                 .help("the section.name to print")

    21                 .value_name("NAME")

    22                 .required(true)

    23                 .takes_value(true),

    24         )

    25         .about(HELP_TEXT)

    26 }

    27 

    28 pub fn run(

    29     ui: &Ui,

    30     config: &Config,

    31     repo_path: Option<&Path>,

    32     args: &ArgMatches,

    33 ) -> Result<(), CommandError> {

    34     let opt_repo = Repo::find_optional(config, repo_path)?;

    35     let config = if let Some(repo) = &opt_repo {

    36         repo.config()

    37     } else {

    38         config

    39     };

    40 

    41     let (section, name) = args

    42         .value_of("name")

    43         .expect("missing required CLI argument")

    44         .as_bytes()

    45         .split_2(b'.')

    46         .ok_or_else(|| HgError::abort(""))?;

    47 

    48     let value = config.get(section, name).unwrap_or(b"");

    49 

    50     ui.write_stdout(&format_bytes!(b"{}\n", value))?;

    51     Ok(())

    52 }