Add gofmt

Dockerfile

@@ -48,6 +48,9 @@ RUN apk add --no-cache --virtual .build-deps \
     -o scalafmt \
   && rm /bin/coursier
 
+# https://stackoverflow.com/a/59485924
+COPY --from=golang:1.22.3-alpine3.18 /usr/local/go/bin/gofmt /gofmt
+
 # Local files
 COPY . .
 RUN tsc \

README.md

@@ -9,6 +9,7 @@ This repo currently contains a single [pre-commit](https://pre-commit.com/) hook
 - [isort](https://github.com/PyCQA/isort) v5.12.0 for Python 2
 - [google-java-format](https://github.com/google/google-java-format) v1.18.1 for Java
 - [ktfmt](https://github.com/facebookincubator/ktfmt) v0.46 for Kotlin
+- [gofmt](https://pkg.go.dev/cmd/gofmt) v1.22.3 for Go
 - [scalafmt](https://scalameta.org/scalafmt/) v3.7.16 for Scala
 - [shfmt](https://github.com/mvdan/sh) v3.7.0 for Shell
 - [xsltproc](http://www.xmlsoft.org/xslt/xsltproc.html) from libxslt v10138 for XML

entry.ts

@@ -75,6 +75,7 @@ const enum HookName {
   Autoflake = "autoflake",
   Black = "Black",
   ClangFormat = "ClangFormat",
+  Gofmt = "gofmt",
   GoogleJavaFormat = "google-java-format",
   Isort = "isort",
   Ktfmt = "ktfmt",
@@ -182,6 +183,11 @@ const HOOKS: Record<HookName, LockableHook> = {
     include: /\.proto$/,
     runAfter: [HookName.Sed],
   }),
+  [HookName.Gofmt]: createLockableHook({
+    action: sources => run("/gofmt", "-s", "-w", ...sources),
+    include: /\.go$/,
+    runAfter: [HookName.Sed],
+  }),
   [HookName.GoogleJavaFormat]: createLockableHook({
     action: sources =>
       run("java", "-jar", "/google-java-format", "--replace", ...sources),

test/after/hello.go

@@ -0,0 +1,7 @@
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("Hello world")
+}

test/before/hello.go

@@ -0,0 +1,2 @@
+package main;import   "fmt";func main(){
+fmt.Println ("Hello world");}