diff options
| -rw-r--r-- | src/bootstrap/src/core/config/config.rs | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs index e222a11065a..b1fa7da0712 100644 --- a/src/bootstrap/src/core/config/config.rs +++ b/src/bootstrap/src/core/config/config.rs @@ -2756,9 +2756,19 @@ impl Config { // If `download-rustc` is not set, default to rebuilding. let if_unchanged = match download_rustc { - None | Some(StringOrBool::Bool(false)) => return None, + None => self.rust_info.is_managed_git_subrepository(), + Some(StringOrBool::Bool(false)) => return None, Some(StringOrBool::Bool(true)) => false, - Some(StringOrBool::String(s)) if s == "if-unchanged" => true, + Some(StringOrBool::String(s)) if s == "if-unchanged" => { + if !self.rust_info.is_managed_git_subrepository() { + println!( + "ERROR: `download-rustc=if-unchanged` is only compatible with Git managed sources." + ); + crate::exit!(1); + } + + true + } Some(StringOrBool::String(other)) => { panic!("unrecognized option for download-rustc: {other}") } @@ -2785,7 +2795,7 @@ impl Config { } println!("ERROR: could not find commit hash for downloading rustc"); println!("HELP: maybe your repository history is too shallow?"); - println!("HELP: consider disabling `download-rustc`"); + println!("HELP: consider setting `rust.download-rustc=false` in config.toml"); println!("HELP: or fetch enough history to include one upstream commit"); crate::exit!(1); } |