hg-core: add a compilation error if trying to compile outside of Linux
For now, we can only provide support for Linux in `hg-core`, so we have to be
explicit about it in case anyone wonders why their Dirstate is suddenly broken,
or why the crate does not compile (on Windows for example).
Differential Revision: https://phab.mercurial-scm.org/D8246
--- a/rust/hg-core/src/lib.rs Tue Mar 10 18:54:44 2020 +0100
+++ b/rust/hg-core/src/lib.rs Fri Mar 06 10:38:37 2020 +0100
@@ -23,6 +23,14 @@
pub use revlog::*;
pub mod utils;
+// Remove this to see (potential) non-artificial compile failures. MacOS
+// *should* compile, but fail to compile tests for example as of 2020-03-06
+#[cfg(not(target_os = "linux"))]
+compile_error!(
+ "`hg-core` has only been tested on Linux and will most \
+ likely not behave correctly on other platforms."
+);
+
use crate::utils::hg_path::HgPathBuf;
pub use filepatterns::{
build_single_regex, read_pattern_file, PatternSyntax, PatternTuple,