pub struct Flags {
pub verbose: bool,
pub stage: Option<u32>,
+ pub keep_stage: Option<u32>,
pub build: String,
pub host: Vec<String>,
pub target: Vec<String>,
opts.optmulti("", "host", "host targets to build", "HOST");
opts.optmulti("", "target", "target targets to build", "TARGET");
opts.optopt("", "stage", "stage to build", "N");
+ opts.optopt("", "keep-stage", "stage to keep without recompiling", "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");
opts.optflag("h", "help", "print this help message");
Flags {
verbose: m.opt_present("v"),
stage: m.opt_str("stage").map(|j| j.parse().unwrap()),
+ keep_stage: m.opt_str("keep-stage").map(|j| j.parse().unwrap()),
build: m.opt_str("build").unwrap_or_else(|| {
env::var("BUILD").unwrap()
}),
// And finally, iterate over everything and execute it.
for step in order.iter() {
+ if self.build.flags.keep_stage.map_or(false, |s| step.stage <= s) {
+ self.build.verbose(&format!("keeping step {:?}", step));
+ continue;
+ }
self.build.verbose(&format!("executing step {:?}", step));
(self.rules[step.name].run)(step);
}