From 2dc8d0aa6c360a48e478f93bef050618e5bffc3e Mon Sep 17 00:00:00 2001
From: "Christopher M. Hobbs" <cmhobbs@acm.org>
Date: Sun, 13 Jul 2025 01:21:24 -0500
Subject: [PATCH] Add devcontainer template for Crystal.

---
 .devcontainer/Dockerfile        | 17 +++++++++++++++++
 .devcontainer/devcontainer.json | 13 +++++++++++++
 README.md                       |  0
 shard.yml                       | 18 ++++++++++++++++++
 spec/spec_helper.cr             |  1 +
 src/main.cr                     |  1 +
 6 files changed, 50 insertions(+)
 create mode 100644 .devcontainer/Dockerfile
 create mode 100644 .devcontainer/devcontainer.json
 create mode 100644 README.md
 create mode 100644 shard.yml
 create mode 100644 spec/spec_helper.cr
 create mode 100644 src/main.cr

diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
new file mode 100644
index 0000000..5aa0acb
--- /dev/null
+++ b/.devcontainer/Dockerfile
@@ -0,0 +1,17 @@
+FROM mcr.microsoft.com/devcontainers/base:ubuntu
+
+# Install packages
+# libpcre3-dev is needed if you wish to use ameba
+RUN apt-get update && apt-get install -y \
+    git \
+    build-essential \
+    curl \
+    libpcre3-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Crystal
+RUN curl -fsSL https://crystal-lang.org/install.sh | bash
+
+# Switch to vscode user
+USER vscode
+WORKDIR /workspaces
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 0000000..9d36d82
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,13 @@
+{
+  "name": "Crystal Development",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "remoteUser": "vscode",
+  "workspaceFolder": "/workspaces/PROJECT_NAME",
+  "customizations": {
+    "vscode": {
+      "extensions": ["crystal-lang-tools.crystal-lang"]
+    }
+  }
+}
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/shard.yml b/shard.yml
new file mode 100644
index 0000000..9bc6683
--- /dev/null
+++ b/shard.yml
@@ -0,0 +1,18 @@
+name: PROJECT_NAME
+version: 0.1.0
+
+authors:
+  - YOUR_NAME <YOUR_EMAIL>
+
+crystal: 1.0.0
+
+license: MIT
+
+development_dependencies:
+  ameba:
+    github: crystal-ameba/ameba
+    version: ~> 1.6.0
+
+targets:
+  PROJECT_NAME:
+    main: src/main.cr
diff --git a/spec/spec_helper.cr b/spec/spec_helper.cr
new file mode 100644
index 0000000..1b73f5d
--- /dev/null
+++ b/spec/spec_helper.cr
@@ -0,0 +1 @@
+# spec_helper.cr
diff --git a/src/main.cr b/src/main.cr
new file mode 100644
index 0000000..62aaaad
--- /dev/null
+++ b/src/main.cr
@@ -0,0 +1 @@
+puts "Hello, PROJECT_NAME!"