Merge pull request #109050 from xaverdh/rust-writer

writers: add writeRust and deduplicate binary stripping

pkgs/build-support/writers/default.nix

@@ -63,7 +63,7 @@ rec {
   #
   # Examples:
   #   writeSimpleC = makeBinWriter { compileScript = name: "gcc -o $out $contentPath"; }
-  makeBinWriter = { compileScript }: nameOrPath: content:
+  makeBinWriter = { compileScript, strip ? true }: nameOrPath: content:
     assert lib.or (types.path.check nameOrPath) (builtins.match "([0-9A-Za-z._])[0-9A-Za-z._-]*" nameOrPath != null);
     assert lib.or (types.path.check content) (types.str.check content);
     let
@@ -76,6 +76,8 @@ rec {
       contentPath = content;
     }) ''
       ${compileScript}
+      ${lib.optionalString strip
+         "${pkgs.binutils-unwrapped}/bin/strip --strip-unneeded $out"}
       ${optionalString (types.path.check nameOrPath) ''
         mv $out tmp
         mkdir -p $out/$(dirname "${nameOrPath}")
@@ -109,7 +111,10 @@ rec {
   #        return 0;
   #      }
   #    ''
-  writeC = name: { libraries ? [] }:
+  writeC = name: {
+    libraries ? [],
+    strip ? true
+  }:
     makeBinWriter {
       compileScript = ''
         PATH=${makeBinPath [
@@ -131,8 +136,8 @@ rec {
             -Wall \
             -x c \
             "$contentPath"
-        strip --strip-unneeded "$out"
       '';
+      inherit strip;
     } name;
 
   # writeCBin takes the same arguments as writeC but outputs a directory (like writeScriptBin)
@@ -165,21 +170,38 @@ rec {
   writeHaskell = name: {
     libraries ? [],
     ghc ? pkgs.ghc,
-    ghcArgs ? []
+    ghcArgs ? [],
+    strip ? true
   }:
     makeBinWriter {
       compileScript = ''
         cp $contentPath tmp.hs
         ${ghc.withPackages (_: libraries )}/bin/ghc ${lib.escapeShellArgs ghcArgs} tmp.hs
         mv tmp $out
-        ${pkgs.binutils-unwrapped}/bin/strip --strip-unneeded "$out"
       '';
+      inherit strip;
     } name;
 
   # writeHaskellBin takes the same arguments as writeHaskell but outputs a directory (like writeScriptBin)
   writeHaskellBin = name:
     writeHaskell "/bin/${name}";
 
+  writeRust = name: {
+      rustc ? pkgs.rustc,
+      rustcArgs ? [],
+      strip ? true
+  }:
+    makeBinWriter {
+      compileScript = ''
+        cp "$contentPath" tmp.rs
+        PATH=${makeBinPath [pkgs.gcc]} ${lib.getBin rustc}/bin/rustc ${lib.escapeShellArgs rustcArgs} -o "$out" tmp.rs
+      '';
+      inherit strip;
+    } name;
+
+  writeRustBin = name:
+    writeRust "/bin/${name}";
+
   # writeJS takes a name an attributeset with libraries and some JavaScript sourcecode and
   # returns an executable
   #

pkgs/build-support/writers/test.nix

@@ -31,6 +31,12 @@ let
      test '~' = '~' && echo 'success'
     '';
 
+    rust = writeRustBin "test_writers" {} ''
+      fn main(){
+        println!("success")
+      }
+    '';
+
     haskell = writeHaskellBin "test_writers" { libraries = [ haskellPackages.acme-default ]; } ''
       import Data.Default