craigtaub / our-own-nx

NX in 100 lines of code.

Run npm run nx test

Features:

• Local computation caching 📁
• Task execution 💻
• Build dependencies graph 📈
• Detect affected projects ⏭️

See below for full list of support.

Local computation caching 📁

Supports

• Inputs - builds input hash and checks against cache, includes
  • workspace namedInputs in hash, supports runtime and env
  • workspace targetDefaults
  • project target configuration values (e.g. the command)
• Inputs - basic in-memory cache
• Outputs - terminal based

Doesn't support

• Inputs
  • source files hash the filename not the file contents
• Outputs - not file based, no build artifacts from test or complication results

Task execution 💻

Supports

• Just console log for simplicity
• Executed in child process

Doesn't support

• In sync so easier to collect and manage output
• No predefined order
• No custom task runners
• No distributed execution across machines

Build dependencies graph 📈

Support

• Build project and task dependency graph, from monorepo
• Detect Task project and workspace dependencies

processTaskDependencies() => project-c targets (project.json + dependencies & inputHash)

{
  prepare: {
    executor: 'nx:run-command',
    options: { command: 'echo file-c.ts' },
    inputs: [ 'env', 'build' ],
    dependencies: [],
    inputHash: 'a2f8cfc4b0d31e14a8d2fed64dd80b35'
  },
  test: {
    executor: '@nx/jest:jest',
    options: { codeCoverage: true },
    dependsOn: [ 'prepare', '^prepare' ],
    inputs: [ 'test' ],
    dependencies: [ 'project-c:prepare', 'project-a:prepare', 'project-b:prepare' ],
    inputHash: 'eb2467f508481945fd3d86403cfccda7'
  }
}

Doesnt support

• Source code analysis
• Workspace defaults

Detect affected projects ⏭️

Support

• Hardcoded project name for simplicity

Doesnt support

• Not checking code modificiations or git tools