Streamline status-go Nix expressions

Signed-off-by: Pedro Pombeiro <pombeirp@users.noreply.github.com>

nix/status-go/build-desktop-status-go.nix

@@ -2,6 +2,8 @@
 { buildGoPackage, go, xcodeWrapper, pkgs, stdenv }:
 
 { owner, repo, rev, version, goPackagePath, src, host,
+
+  # desktop-only arguments
   goBuildFlags, goBuildLdFlags,
   outputFileName,
   hostSystem } @ args':
@@ -9,36 +11,24 @@
 with stdenv;
 
 let
-  args = removeAttrs args' [ "goBuildFlags" "goBuildLdFlags" "outputFileName" "hostSystem" ];
   buildStatusGo = pkgs.callPackage ./build-status-go.nix { inherit buildGoPackage go xcodeWrapper; };
 
+  args = removeAttrs args' [ "goBuildFlags" "goBuildLdFlags" "outputFileName" "hostSystem" ]; # Remove desktop-only arguments from args
   buildStatusGoDesktopLib = buildStatusGo (args // {
+    buildMessage = "Building desktop library";
+    #GOOS=windows GOARCH=amd64 CGO_ENABLED=1 go build ${goBuildFlags} -buildmode=c-archive -o $out/${outputFileName} ./lib
     buildPhase = ''
-      runHook preBuild
-
-      runHook renameImports
-
       pushd "$NIX_BUILD_TOP/go/src/${goPackagePath}" >/dev/null
 
-      echo
-      echo "Building desktop library"
-      echo
-      #GOOS=windows GOARCH=amd64 CGO_ENABLED=1 go build ${goBuildFlags} -buildmode=c-archive -o $out/${outputFileName} ./lib
       go build -o $out/${outputFileName} ${goBuildFlags} -buildmode=c-archive ${goBuildLdFlags} ./lib
 
       popd >/dev/null
-
-      runHook postBuild
     '';
 
     installPhase = ''
-      runHook preInstall
-
       mkdir -p $out/lib/${hostSystem} $out/include
       mv $out/${outputFileName} $out/lib/${hostSystem}
       mv $out/libstatus.h $out/include
-
-      runHook postInstall
     '';
 
     outputs = [ "out" ];

nix/status-go/build-mobile-status-go.nix

@@ -2,29 +2,25 @@
 { buildGoPackage, go, gomobile, openjdk, xcodeWrapper, pkgs, stdenv }:
 
 { owner, repo, rev, version, goPackagePath, src, host,
+
+  # mobile-only arguments
   goBuildFlags, goBuildLdFlags,
   config } @ args':
 
 with stdenv;
 
 let
-  args = removeAttrs args' [ "config" "goBuildFlags" "goBuildLdFlags" ];
   targetConfig = config;
   buildStatusGo = pkgs.callPackage ./build-status-go.nix { inherit buildGoPackage go xcodeWrapper; };
 
+  args = removeAttrs args' [ "config" "goBuildFlags" "goBuildLdFlags" ]; # Remove mobile-only arguments from args
   buildStatusGoMobileLib = buildStatusGo (args // {
     nativeBuildInputs = [ gomobile ] ++ lib.optional (targetConfig.name == "android") openjdk;
 
+    buildMessage = "Building mobile library for ${targetConfig.name}";
+    # Build mobile libraries
+    # TODO: Manage to pass -s -w to -ldflags. Seems to only accept a single flag
     buildPhase = ''
-      runHook preBuild
-
-      runHook renameImports
-
-      # Build mobile libraries
-      # TODO: Manage to pass -s -w to -ldflags. Seems to only accept a single flag
-      echo
-      echo "Building mobile library for ${targetConfig.name}"
-      echo
       GOPATH=${gomobile.dev}:$GOPATH \
       PATH=${lib.makeBinPath [ gomobile.bin ]}:$PATH \
       ${lib.concatStringsSep " " targetConfig.envVars} \
@@ -32,17 +28,11 @@ let
                     -o ${targetConfig.outputFileName} \
                     ${goBuildLdFlags} \
                     ${goPackagePath}/mobile
-
-      runHook postBuild
     '';
 
     installPhase = ''
-      runHook preInstall
-
       mkdir -p $out/lib
       mv ${targetConfig.outputFileName} $out/lib/
-
-      runHook postInstall
     '';
 
     outputs = [ "out" ];

nix/status-go/build-status-go.nix

@@ -2,10 +2,10 @@
 
 { owner, repo, rev, version, goPackagePath, src, host,
   nativeBuildInputs ? [],
-  buildPhase,
+  buildPhase, buildMessage,
   installPhase ? "",
   postInstall ? "",
-  outputs, meta } @ args:
+  outputs, meta } @ args':
 
 with stdenv;
 
@@ -13,6 +13,7 @@ let
   removeReferences = [ go ];
   removeExpr = refs: ''remove-references-to ${lib.concatMapStrings (ref: " -t ${ref}") refs}'';
 
+  args = removeAttrs args' [ "buildMessage" ]; # Remove our arguments from args before passing them on to buildGoPackage
   buildStatusGo = buildGoPackage (args // {
     name = "${repo}-${version}-${host}";
 
@@ -44,6 +45,27 @@ let
       xcrun xcodebuild -version
     '';
 
+    buildPhase = ''
+      runHook preBuild
+
+      runHook renameImports
+
+      echo
+      echo "${buildMessage}"
+      echo
+      ${buildPhase}
+
+      runHook postBuild
+    '';
+
+    installPhase = ''
+      runHook preInstall
+
+      ${installPhase}
+
+      runHook postInstall
+    '';
+
     # remove hardcoded paths to go package in /nix/store, otherwise Nix will fail the build
     preFixup = ''
       find $out -type f -exec ${removeExpr removeReferences} '{}' + || true