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| author | Felix S. Klock II <pnkfelix@pnkfx.org> | 2020-06-15 15:02:57 -0400 |
|---|---|---|
| committer | Felix S. Klock II <pnkfelix@pnkfx.org> | 2020-06-15 15:02:57 -0400 |
| commit | b34a41797248fb36dd690d6013a9a238391437d0 (patch) | |
| tree | 0a17f62bdf4bee58ba38ae3e8c3db36e4f8a6050 | |
| parent | ff4a2533a0720f9cdd86e02eafa3725f07aa7752 (diff) | |
| download | rust-b34a41797248fb36dd690d6013a9a238391437d0.tar.gz rust-b34a41797248fb36dd690d6013a9a238391437d0.zip | |
Add more info to `x.py build --help` on default value for `-j JOBS`.
| -rw-r--r-- | src/bootstrap/flags.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/bootstrap/flags.rs b/src/bootstrap/flags.rs index cfaa43f3970..37261153574 100644 --- a/src/bootstrap/flags.rs +++ b/src/bootstrap/flags.rs @@ -149,7 +149,12 @@ To learn more about a subcommand, run `./x.py <subcommand> -h`", "N", ); opts.optopt("", "src", "path to the root of the rust checkout", "DIR"); - opts.optopt("j", "jobs", "number of jobs to run in parallel", "JOBS"); + let j_msg = format!( + "number of jobs to run in parallel; \ + defaults to {} (this host's logical CPU count)", + num_cpus::get() + ); + opts.optopt("j", "jobs", &j_msg, "JOBS"); opts.optflag("h", "help", "print this help message"); opts.optopt( "", |