rhg: Add debug timing

Differential Revision: https://phab.mercurial-scm.org/D8962

rust/Cargo.lock

@@ -569,7 +569,10 b' name = "rhg"'
 version = "0.1.0"
 dependencies = [
  "clap 2.33.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hg-core 0.1.0",
+ "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "micro-timer 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]

rust/rhg/Cargo.toml

@@ -7,4 +7,6 b' edition = "2018"'
 [dependencies]
 hg-core = { path = "../hg-core"}
 clap = "2.33.1"
-
+log = "0.4.11"
+micro-timer = "0.3.1"
+env_logger = "0.7.1"

rust/rhg/src/commands/debugdata.rs

@@ -5,6 +5,7 b' use crate::ui::Ui;'
 use hg::operations::{
     DebugData, DebugDataError, DebugDataErrorKind, DebugDataKind,
 };
+use micro_timer::timed;
 
 pub const HELP_TEXT: &str = "
 Dump the contents of a data file revision
@@ -22,6 +23,7 b" impl<'a> DebugDataCommand<'a> {"
 }
 
 impl<'a> Command for DebugDataCommand<'a> {
+    #[timed]
     fn run(&self, ui: &Ui) -> Result<(), CommandError> {
         let mut operation = DebugData::new(self.rev, self.kind);
         let data =

rust/rhg/src/main.rs

@@ -1,3 +1,4 b''
+extern crate log;
 use clap::App;
 use clap::AppSettings;
 use clap::Arg;
@@ -15,6 +16,7 b' use commands::Command;'
 use error::CommandError;
 
 fn main() {
+    env_logger::init();
     let app = App::new("rhg")
         .setting(AppSettings::AllowInvalidUtf8)
         .setting(AppSettings::SubcommandRequired)