devcontainer.json

{
  "image": "mcr.microsoft.com/devcontainers/base:jammy",

  "features": {
      "ghcr.io/devcontainers/features/nix:1": {
        "multiUser": true,
        "packages": ["cachix", "ihp-new"],
        "extraNixConfig": "experimental-features = nix-command flakes,keep-outputs = true,keep-derivations = true"
      }
  },


  "onCreateCommand": {
    "Setup cachix": "echo \"trusted-users = root vscode\" | sudo tee -a /etc/nix/nix.conf && sudo pkill nix-daemon; cachix use cachix; cachix use digitallyinduced;",
    "Setup direnv": "sudo apt install direnv; echo 'eval \"$(direnv hook bash)\"' >> ~/.bashrc",
    "Set IHP BASEURL": "echo 'export IHP_BASEURL=$(if [ -n \"${CODESPACE_NAME}\" ]; then echo \"https://${CODESPACE_NAME}-8000.${GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN}\"; else echo \"http://localhost:8000\"; fi)' >> ~/.bashrc",
    "Set IHP IDE BASEURL": "echo 'export IHP_IDE_BASEURL=$(if [ -n \"${CODESPACE_NAME}\" ]; then echo \"https://${CODESPACE_NAME}-8001.${GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN}\"; else echo \"http://localhost:8001\"; fi)' >> ~/.bashrc",
    "Fix nix Permissions": "sudo apt install acl; sudo setfacl -k /tmp",
    "Allow direnv": "mkdir -p ~/.config/direnv; touch ~/.config/direnv/direnv.toml; echo \"[whitelist]\nprefix = ['/workspaces/']\" >> ~/.config/direnv/direnv.toml"
  },

  "postCreateCommand": {
    // Credits to https://github.com/gitpod-samples/template-ihp/blob/e3fe7012621ab57657c59511b2fe0bc615d5186d/.gitpod.yml#L14
    "Setup IHP": "sudo /usr/local/share/nix-entrypoint.sh; ( if [ ! -e \"Main.hs\" ]; then rm -rf /tmp/ihp-boilerplate; git clone \"https:\/\/github.com/digitallyinduced/ihp-boilerplate.git\" /tmp/ihp-boilerplate; rm -rf /tmp/ihp-boilerplate/.git; cp -r /tmp/ihp-boilerplate/. .; fi) && git add . && nix develop --accept-flake-config --impure --command make -s all; if [ ! -d \"Web\" ]; then (nix develop --accept-flake-config --impure --command new-application Web) fi"
  },

  "containerEnv": {
    "PROJECT_DIR": "${containerWorkspaceFolder}"
  },

  "remoteUser": "vscode",

  "customizations": {
    "vscode": {
      "settings": {
        "terminal.integrated.profiles.linux": {
          "bash": {
            "path": "/bin/bash"
          }
        },
        "terminal.integrated.defaultProfile.linux": "bash"
      },
      "extensions": [
        "bbenoist.nix",
        "haskell.haskell",
        "s0kil.vscode-hsx",
        "mkhl.direnv",
        "vigoo.stylish-haskell"
      ]
    }
  }
}