compilers: introduce get_exe() and get_exe_args()

This will be used by rustdoc tests because the Test objects takes a
single string for the command and everything else goes in the args.
But apart from this, the need to split the executable from the
arguments is common so create new methods to do it.

While at it, fix brokenness in the handling of the zig compiler, which
is checking against "zig" but failing to detect e.g. "/usr/bin/zig".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/mesonbuild/compilers/detect.py b/mesonbuild/compilers/detect.py
index bce0be8a8..9dab06a85 100644
--- a/mesonbuild/compilers/detect.py
+++ b/mesonbuild/compilers/detect.py
@@ -1099,7 +1099,7 @@ def detect_rust_compiler(env: 'Environment', for_machine: MachineChoice) -> Rust
                 extra_args: T.Dict[str, T.Union[str, bool]] = {}
                 always_args: T.List[str] = []
                 if is_link_exe:
-                    compiler.extend(cls.use_linker_args(cc.linker.exelist[0], ''))
+                    compiler.extend(cls.use_linker_args(cc.linker.get_exe(), ''))
                     extra_args['direct'] = True
                     extra_args['machine'] = cc.linker.machine
                 else:
@@ -1131,7 +1131,7 @@ def detect_rust_compiler(env: 'Environment', for_machine: MachineChoice) -> Rust
                 # inserts the correct prefix itself.
                 assert isinstance(linker, linkers.VisualStudioLikeLinkerMixin)
                 linker.direct = True
-                compiler.extend(cls.use_linker_args(linker.exelist[0], ''))
+                compiler.extend(cls.use_linker_args(linker.get_exe(), ''))
             else:
                 # On linux and macos rust will invoke the c compiler for
                 # linking, on windows it will use lld-link or link.exe.