GitNexus/.devcontainer/devcontainer.json

// Devcontainer for GitNexus. Pre-installs Claude Code, OpenAI Codex CLI,
// and Cursor CLI alongside the Node.js native build chain. Cross-platform
// (Win11+WSL2 + macOS + Linux), opened via the VS Code Dev Containers
// extension.
//
// First-time setup, auth flows, and troubleshooting: .devcontainer/README.md.
{
  "name": "GitNexus AI CLI Devcontainer",

  "build": {
    "dockerfile": "Dockerfile",
    "context": ".",
    "args": {
      "CLAUDE_CODE_VERSION": "2.1.153",
      "CODEX_VERSION": "0.134.0",
      "CURSOR_VERSION": "latest",
      "TZ": "${localEnv:TZ:UTC}"
    }
  },

  // Anthropic's official Claude Code Feature pulls the latest stable at
  // build time; DISABLE_AUTOUPDATER below locks it inside the running
  // container so rebuild is the only way the version changes.
  "features": {
    "ghcr.io/anthropics/devcontainer-features/claude-code:1": {},
    "ghcr.io/devcontainers/features/github-cli:1": {}
  },

  "remoteUser": "node",
  "updateRemoteUserUID": true,

  "workspaceMount": "source=${localWorkspaceFolder},target=/workspace,type=bind,consistency=delegated",
  "workspaceFolder": "/workspace",

  // Named volumes scoped per-devcontainer keep auth tokens, history, and
  // node_modules persistent across rebuilds without leaking between
  // workspaces. Sub-workspace node_modules volumes keep tree-sitter native
  // binaries and onnxruntime off the bind mount (the real Win/Mac perf win).
  "mounts": [
    "source=claude-config-${devcontainerId},target=/home/node/.claude,type=volume",
    "source=codex-config-${devcontainerId},target=/home/node/.codex,type=volume",
    "source=cursor-config-${devcontainerId},target=/home/node/.cursor,type=volume",
    "source=commandhistory-${devcontainerId},target=/commandhistory,type=volume",
    "source=npm-cache-${devcontainerId},target=/home/node/.npm,type=volume",
    "source=${localWorkspaceFolderBasename}-root-node-modules,target=/workspace/node_modules,type=volume",
    "source=${localWorkspaceFolderBasename}-gitnexus-node-modules,target=/workspace/gitnexus/node_modules,type=volume",
    "source=${localWorkspaceFolderBasename}-gitnexus-web-node-modules,target=/workspace/gitnexus-web/node_modules,type=volume",
    "source=${localWorkspaceFolderBasename}-gitnexus-shared-node-modules,target=/workspace/gitnexus-shared/node_modules,type=volume"
  ],

  // Interactive login is the default auth path for all three CLIs;
  // credentials persist in the per-devcontainer named volumes mounted above.
  // API keys (ANTHROPIC_API_KEY / OPENAI_API_KEY / CURSOR_API_KEY) are NOT
  // injected via containerEnv — `${localEnv:VAR}` resolves an unset host var
  // to an empty string, and Cursor in particular treats `CURSOR_API_KEY=""`
  // as "use this empty key" rather than "fall back to stored login", which
  // would silently break `cursor-agent login`. Users who need API key auth
  // should `export` the var in their container shell or carry it via their
  // VS Code dotfiles repo (see .devcontainer/README.md).
  "containerEnv": {
    "CLAUDE_CONFIG_DIR": "/home/node/.claude",
    "DISABLE_AUTOUPDATER": "1",
    "HISTFILE": "/commandhistory/.zsh_history"
  },

  "customizations": {
    "vscode": {
      "extensions": [
        "anthropic.claude-code",
        "dbaeumer.vscode-eslint",
        "esbenp.prettier-vscode",
        "eamodio.gitlens"
      ],
      "settings": {
        "editor.formatOnSave": true,
        "editor.defaultFormatter": "esbenp.prettier-vscode",
        "editor.codeActionsOnSave": {
          "source.fixAll.eslint": "explicit"
        },
        "files.eol": "\n",
        "terminal.integrated.defaultProfile.linux": "zsh",
        "terminal.integrated.profiles.linux": {
          "bash": { "path": "bash", "icon": "terminal-bash" },
          "zsh": { "path": "zsh" }
        }
      }
    }
  },

  // 4747 (gitnexus serve) must not be remapped: gitnexus-web hardcodes
  // http://localhost:4747 as the default backend URL.
  "forwardPorts": [5173, 4747, 4173],
  "portsAttributes": {
    "5173": {
      "label": "Vite dev (gitnexus-web)",
      "onAutoForward": "notify"
    },
    "4747": {
      "label": "gitnexus serve HTTP API",
      "onAutoForward": "notify",
      "requireLocalPort": true
    },
    "4173": {
      "label": "Static web (Vite preview)",
      "onAutoForward": "silent"
    }
  },

  // Sequential setup: chown the workspace-side node_modules volumes (Docker
  // creates them root-owned), then install in dependency order:
  // root (husky) → gitnexus-shared (install + build, consumed via file:..)
  // → gitnexus-web (must install BEFORE gitnexus, because gitnexus's
  // `prepare` script runs scripts/build.js which compiles gitnexus-web)
  // → gitnexus (last; its prepare hook needs gitnexus-web's node_modules).
  "postCreateCommand": "sudo chown -R node:node /workspace/node_modules /workspace/gitnexus/node_modules /workspace/gitnexus-web/node_modules /workspace/gitnexus-shared/node_modules && cd /workspace && npm install && cd /workspace/gitnexus-shared && npm install && npm run build && cd /workspace/gitnexus-web && npm install && cd /workspace/gitnexus && npm install"
}