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rustbuild: Compile the error-index in stage 2

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Right now we comiple rustdoc in stage 2 and the error index in stage 0, which
ends up compiling rustdoc twice! To avoid compiling rustdoc twice (which takes
awhile) let's just compile it once in stage 2.
This commit is contained in:
Alex Crichton 2017-09-15 09:34:17 -07:00
parent fd4bef54ab
commit 61e255a534
1 changed files with 14 additions and 2 deletions
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16
src/bootstrap/tool.rs
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@ -148,15 +148,27 @@ macro_rules! tool {
impl<'a> Builder<'a> {
pub fn tool_exe(&self, tool: Tool) -> PathBuf {
let stage = self.tool_default_stage(tool);
match tool {
$(Tool::$name =>
self.ensure($name {
compiler: self.compiler(0, self.build.build),
compiler: self.compiler(stage, self.build.build),
target: self.build.build,
}),
)+
}
}
pub fn tool_default_stage(&self, tool: Tool) -> u32 {
// Compile the error-index in the top stage as it depends on
// rustdoc, so we want to avoid recompiling rustdoc twice if we
// can. Otherwise compile everything else in stage0 as there's
// no need to rebootstrap everything
match tool {
Tool::ErrorIndex => self.top_stage,
_ => 0,
}
}
}
$(
@ -436,7 +448,7 @@ impl<'a> Builder<'a> {
/// `host`.
pub fn tool_cmd(&self, tool: Tool) -> Command {
let mut cmd = Command::new(self.tool_exe(tool));
let compiler = self.compiler(0, self.build.build);
let compiler = self.compiler(self.tool_default_stage(tool), self.build.build);
self.prepare_tool_cmd(compiler, &mut cmd);
cmd
}