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annotate rust/rhg/src/commands/root.rs @ 45984:fada33872b5b

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rhg: use `format_bytes!` for error messages This change also includes a formatting changing with the new `rustfmt` version, but I'm expecting it to have already been applied in another patch by the time this lands. Differential Revision: https://phab.mercurial-scm.org/D9407
author Rapha?l Gom?s <rgomes@octobus.net>
date Thu, 26 Nov 2020 09:54:16 +0100
parents ed95ccc94333
children dca9cb99971c
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513b3ef277a3 rhg: add RootCommand using hg-core FindRoot operation to prepare `hg root`
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1 use crate::commands::Command;
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2 use crate::error::CommandError;
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3 use crate::ui::Ui;
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4 use format_bytes::format_bytes;
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5 use hg::operations::FindRoot;
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6 use hg::utils::files::get_bytes_from_path;
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8 pub const HELP_TEXT: &str = "
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9 Print the root directory of the current repository.
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11 Returns 0 on success.
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12 ";
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13
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14 pub struct RootCommand {}
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16 impl RootCommand {
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17 pub fn new() -> Self {
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18 RootCommand {}
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19 }
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20 }
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21
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22 impl Command for RootCommand {
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23 fn run(&self, ui: &Ui) -> Result<(), CommandError> {
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24 let path_buf = FindRoot::new().run()?;
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26 let bytes = get_bytes_from_path(path_buf);
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28 ui.write_stdout(&format_bytes!(b"{}\n", bytes.as_slice()))?;
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30 Ok(())
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31 }
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32 }