refactor: Update Go starter template to use main.go instead of server.go

compiled_starters/go/README.md

@@ -12,7 +12,7 @@ event loops, the Redis protocol and more.
 
 # Passing the first stage
 
-The entry point for your Redis implementation is in `app/server.go`. Study and
+The entry point for your Redis implementation is in `app/main.go`. Study and
 uncomment the relevant code, and push your changes to pass the first stage:
 
 ```sh
@@ -28,6 +28,6 @@ Note: This section is for stages 2 and beyond.
 
 1. Ensure you have `go (1.24)` installed locally
 1. Run `./your_program.sh` to run your Redis server, which is implemented in
-   `app/server.go`.
+   `app/main.go`.
 1. Commit your changes and run `git push origin master` to submit your solution
    to CodeCrafters. Test output will be streamed to your terminal.

dockerfiles/go-1.22.Dockerfile

@@ -1,13 +1,16 @@
+# syntax=docker/dockerfile:1.7-labs
 FROM golang:1.22-alpine
 
+# Ensures the container is re-built if go.mod or go.sum changes
 ENV CODECRAFTERS_DEPENDENCY_FILE_PATHS="go.mod,go.sum"
 
 WORKDIR /app
 
-COPY go.mod go.sum ./
+# .git & README.md are unique per-repository. We ignore them on first copy to prevent cache misses
+COPY --exclude=.git --exclude=README.md . /app
 
-# Starting from Go 1.20, the go standard library is no loger compiled
-# setting the GODEBUG environment to "installgoroot=all" restores the old behavior
+# Starting from Go 1.20, the go standard library is no loger compiled.
+# Setting GODEBUG to "installgoroot=all" restores the old behavior
 RUN GODEBUG="installgoroot=all" go install std
 
 RUN go mod download

dockerfiles/go-1.24.Dockerfile

@@ -1,13 +1,16 @@
+# syntax=docker/dockerfile:1.7-labs
 FROM golang:1.24-alpine
 
+# Ensures the container is re-built if go.mod or go.sum changes
 ENV CODECRAFTERS_DEPENDENCY_FILE_PATHS="go.mod,go.sum"
 
 WORKDIR /app
 
-COPY go.mod go.sum ./
+# .git & README.md are unique per-repository. We ignore them on first copy to prevent cache misses
+COPY --exclude=.git --exclude=README.md . /app
 
-# Starting from Go 1.20, the go standard library is no loger compiled
-# setting the GODEBUG environment to "installgoroot=all" restores the old behavior
+# Starting from Go 1.20, the go standard library is no loger compiled.
+# Setting GODEBUG to "installgoroot=all" restores the old behavior
 RUN GODEBUG="installgoroot=all" go install std
 
 RUN go mod download

solutions/go/01-jm1/code/README.md

@@ -12,7 +12,7 @@ event loops, the Redis protocol and more.
 
 # Passing the first stage
 
-The entry point for your Redis implementation is in `app/server.go`. Study and
+The entry point for your Redis implementation is in `app/main.go`. Study and
 uncomment the relevant code, and push your changes to pass the first stage:
 
 ```sh
@@ -28,6 +28,6 @@ Note: This section is for stages 2 and beyond.
 
 1. Ensure you have `go (1.24)` installed locally
 1. Run `./your_program.sh` to run your Redis server, which is implemented in
-   `app/server.go`.
+   `app/main.go`.
 1. Commit your changes and run `git push origin master` to submit your solution
    to CodeCrafters. Test output will be streamed to your terminal.

solutions/go/01-jm1/explanation.md

@@ -1,4 +1,4 @@
-The entry point for your Redis implementation is in `app/server.go`.
+The entry point for your Redis implementation is in `app/main.go`.
 
 Study and uncomment the relevant code: 
 

solutions/go/02-rg2/code/README.md

@@ -12,7 +12,7 @@ event loops, the Redis protocol and more.
 
 # Passing the first stage
 
-The entry point for your Redis implementation is in `app/server.go`. Study and
+The entry point for your Redis implementation is in `app/main.go`. Study and
 uncomment the relevant code, and push your changes to pass the first stage:
 
 ```sh
@@ -28,6 +28,6 @@ Note: This section is for stages 2 and beyond.
 
 1. Ensure you have `go (1.24)` installed locally
 1. Run `./your_program.sh` to run your Redis server, which is implemented in
-   `app/server.go`.
+   `app/main.go`.
 1. Commit your changes and run `git push origin master` to submit your solution
    to CodeCrafters. Test output will be streamed to your terminal.

starter_templates/go/config.yml

@@ -1,3 +1,3 @@
 attributes:
   required_executable: go (1.24)
-  user_editable_file: app/server.go
+  user_editable_file: app/main.go