gopherjs · myitcv · Feb 27, 2018
diff --git a/circle.yml b/circle.yml
@@ -10,10 +10,13 @@ dependencies:
   post:
     - mv ./gopherjs $HOME/bin
     - npm install --global node-gyp
+    - npm install
     - cd node-syscall && node-gyp rebuild && mkdir -p ~/.node_libraries/ && cp build/Release/syscall.node ~/.node_libraries/syscall.node
 
 test:
   override:
+    - PATH=node_modules/.bin:$PATH go generate github.com/gopherjs/gopherjs/compiler/prelude
+    - diff -u <(echo -n) <(git status --porcelain)
     - diff -u <(echo -n) <(gofmt -d .)
     - go tool vet *.go                                                   # Go package in root directory.
     - for d in */; do echo $d; done | grep -v tests/ | grep -v third_party/ | xargs go tool vet # All subdirectories except "tests", "third_party".

diff --git a/compiler/prelude/prelude.go b/compiler/prelude/prelude.go
@@ -1,5 +1,7 @@
 package prelude
 
+//go:generate go run regen.go
+
 const Prelude = prelude + numeric + types + goroutines + jsmapping
 
 const prelude = `Error.stackTraceLimit = Infinity;

diff --git a/compiler/prelude/prelude_min.go b/compiler/prelude/prelude_min.go
diff --git a/compiler/prelude/regen.go b/compiler/prelude/regen.go
@@ -0,0 +1,34 @@
+// +build ignore
+
+package main
+
+import (
+	"io/ioutil"
+	"log"
+	"os"
+	"os/exec"
+	"strings"
+
+	"github.com/gopherjs/gopherjs/compiler/prelude"
+)
+
+func main() {
+	cmd := exec.Command("uglifyjs")
+	cmd.Stdin = strings.NewReader(prelude.Prelude)
+
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		log.Fatalf("uglifyjs: %v\n%s", err, out)
+		os.Exit(1)
+	}
+
+	err = ioutil.WriteFile("prelude_min.go", []byte(`// Code generated by regen. DO NOT EDIT.
+
+package prelude
+
+const Minified = `+"`"+string(out)+"`\n"), 0644)
+
+	if err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -0,0 +1,6 @@
+{
+  "name": "gopherjs",
+  "devDependencies": {
+    "uglify-es": "^3.3.9"
+  }
+}