Ryth Azhur
787f90fd12
packages/
mizan-runtime/ Framework-agnostic state engine (~150 lines)
Context registry, batched invalidation, fetch primitives
mizan-django/ Django server adapter (was packages/mizan-rpc/adapters/django/)
Codegen moved to mizan-django/generate/
mizan-react/ React adapter (was packages/mizan-csr/adapters/react/)
Removed premature abstractions: mizan-ast, mizan-schema, mizan-rpc,
mizan-csr, mizan-ssr stub packages. The actual architecture is three
concrete packages, not five abstract layers.
mizan-runtime implements the v1 spec: registerContext with params,
scoped invalidation via microtask batching, server-driven invalidation
from mutation responses, mizanFetch for context bundles, mizanCall for
mutations.
264 Django + 33 React tests pass.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
89 lines
2.3 KiB
JavaScript
89 lines
2.3 KiB
JavaScript
/**
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* Schema Fetching
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*
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* Fetches mizan and channels schemas from Django management commands.
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*/
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import { spawn } from 'child_process'
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import path from 'path'
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/**
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* Run a Django management command and parse JSON output.
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*/
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function runDjangoCommand(source, cwd, command) {
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const managePath = path.resolve(cwd, source.django.managePath)
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const manageDir = path.dirname(managePath)
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let cmd, args
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if (source.django.command) {
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cmd = source.django.command[0]
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args = [...source.django.command.slice(1), 'manage.py', command, '--indent', '0']
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} else {
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const python = source.django.python || 'python'
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cmd = python
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args = [managePath, command, '--indent', '0']
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}
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const env = source.django.env
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? { ...process.env, ...source.django.env }
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: undefined
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return new Promise((resolve, reject) => {
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const proc = spawn(cmd, args, {
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cwd: manageDir,
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stdio: ['ignore', 'pipe', 'pipe'],
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shell: process.platform === 'win32',
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env,
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})
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let stdout = ''
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let stderr = ''
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proc.stdout.on('data', (data) => { stdout += data.toString() })
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proc.stderr.on('data', (data) => { stderr += data.toString() })
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proc.on('close', (code) => {
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if (code !== 0) {
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reject(new Error(`Django command failed (exit ${code}):\n${stderr}`))
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return
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}
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const jsonStart = stdout.indexOf('{')
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if (jsonStart === -1) {
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reject(new Error(`No JSON found in Django output:\n${stdout}\n${stderr}`))
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return
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}
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try {
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resolve(JSON.parse(stdout.slice(jsonStart)))
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} catch (err) {
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reject(new Error(`Failed to parse JSON from Django:\n${err.message}\n${stdout}`))
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}
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})
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proc.on('error', (err) => {
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reject(new Error(`Failed to spawn Django command: ${err.message}`))
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})
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})
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}
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/**
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* Fetch channels schema from Django.
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*/
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export async function fetchChannelsSchema(source, cwd) {
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if (!source.django) {
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throw new Error('Channels schema export requires django source configuration')
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}
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return runDjangoCommand(source, cwd, 'export_channels_schema')
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}
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/**
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* Fetch mizan schema from Django.
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*/
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export async function fetchMizanSchema(source, cwd) {
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if (!source.django) {
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throw new Error('mizan schema export requires django source configuration')
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}
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return runDjangoCommand(source, cwd, 'export_mizan_schema')
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}
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