feat: CLI improvements

packages/schema/src/cli/actions/generate.ts

@@ -0,0 +1,72 @@
+import { PluginError } from '@zenstackhq/sdk';
+import colors from 'colors';
+import path from 'path';
+import { Context } from '../../types';
+import { PackageManagers } from '../../utils/pkg-utils';
+import { CliError } from '../cli-error';
+import {
+    checkNewVersion,
+    checkRequiredPackage,
+    getZenStackPackages,
+    loadDocument,
+    requiredPrismaVersion,
+} from '../cli-util';
+import { PluginRunner } from '../plugin-runner';
+
+type Options = {
+    schema: string;
+    packageManager: PackageManagers | undefined;
+    dependencyCheck: boolean;
+    versionCheck: boolean;
+};
+
+/**
+ * CLI action for generating code from schema
+ */
+export async function generate(projectPath: string, options: Options) {
+    if (options.dependencyCheck) {
+        checkRequiredPackage('prisma', requiredPrismaVersion);
+        checkRequiredPackage('@prisma/client', requiredPrismaVersion);
+    }
+
+    // check for multiple versions of Zenstack packages
+    const packages = getZenStackPackages(projectPath);
+    if (packages) {
+        const versions = new Set<string>(packages.map((p) => p.version));
+        if (versions.size > 1) {
+            console.warn(
+                colors.yellow(
+                    'WARNING: Multiple versions of Zenstack packages detected. Run "zenstack info" to see details.'
+                )
+            );
+        }
+    }
+
+    const tasks = [runPlugins(options)];
+
+    if (options.versionCheck) {
+        tasks.push(checkNewVersion());
+    }
+
+    await Promise.all(tasks);
+}
+
+async function runPlugins(options: Options) {
+    const model = await loadDocument(options.schema);
+    const context: Context = {
+        schema: model,
+        schemaPath: path.resolve(options.schema),
+        outDir: path.dirname(options.schema),
+    };
+
+    try {
+        await new PluginRunner().run(context);
+    } catch (err) {
+        if (err instanceof PluginError) {
+            console.error(colors.red(`${err.plugin}: ${err.message}`));
+            throw new CliError(err.message);
+        } else {
+            throw err;
+        }
+    }
+}

packages/schema/src/cli/actions/index.ts

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+export * from './generate';
+export * from './info';
+export * from './init';

packages/schema/src/cli/actions/info.ts

@@ -0,0 +1,44 @@
+import colors from 'colors';
+import getLatestVersion from 'get-latest-version';
+import ora from 'ora';
+import semver from 'semver';
+import { getZenStackPackages } from '../cli-util';
+
+/**
+ * CLI action for getting information about installed ZenStack packages
+ */
+export async function info(projectPath: string) {
+    const packages = getZenStackPackages(projectPath);
+    if (!packages) {
+        console.error('Unable to locate package.json. Are you in a valid project directory?');
+        return;
+    }
+
+    console.log('Installed ZenStack Packages:');
+    const versions = new Set<string>();
+    for (const { pkg, version } of packages) {
+        versions.add(version);
+        console.log(`    ${colors.green(pkg.padEnd(20))}\t${version}`);
+    }
+
+    if (versions.size > 1) {
+        console.warn(colors.yellow('WARNING: Multiple versions of Zenstack packages detected. This may cause issues.'));
+    } else if (versions.size > 0) {
+        const spinner = ora('Checking npm registry').start();
+        const latest = await getLatestVersion('zenstack');
+
+        if (!latest) {
+            spinner.fail('unable to check for latest version');
+        } else {
+            spinner.succeed();
+            const version = [...versions][0];
+            if (semver.gt(latest, version)) {
+                console.log(`A newer version of Zenstack is available: ${latest}.`);
+            } else if (semver.gt(version, latest)) {
+                console.log('You are using a pre-release version of Zenstack.');
+            } else {
+                console.log('You are using the latest version of Zenstack.');
+            }
+        }
+    }
+}

packages/schema/src/cli/actions/init.ts

@@ -0,0 +1,77 @@
+import colors from 'colors';
+import fs from 'fs';
+import path from 'path';
+import { PackageManagers, ensurePackage, installPackage } from '../../utils/pkg-utils';
+import { getVersion } from '../../utils/version-utils';
+import { CliError } from '../cli-error';
+import { checkNewVersion } from '../cli-util';
+
+type Options = {
+    prisma: string | undefined;
+    packageManager: PackageManagers | undefined;
+    versionCheck: boolean;
+    tag?: string;
+};
+
+/**
+ * CLI action for initializing an existing project
+ */
+export async function init(projectPath: string, options: Options) {
+    if (!fs.existsSync(projectPath)) {
+        console.error(`Path does not exist: ${projectPath}`);
+        throw new CliError('project path does not exist');
+    }
+
+    const defaultPrismaSchemaLocation = './prisma/schema.prisma';
+    let prismaSchema = options.prisma;
+    if (prismaSchema) {
+        if (!fs.existsSync(prismaSchema)) {
+            console.error(`Prisma schema file does not exist: ${prismaSchema}`);
+            throw new CliError('prisma schema does not exist');
+        }
+    } else if (fs.existsSync(defaultPrismaSchemaLocation)) {
+        prismaSchema = defaultPrismaSchemaLocation;
+    }
+
+    const zmodelFile = path.join(projectPath, './schema.zmodel');
+    let sampleModelGenerated = false;
+
+    if (fs.existsSync(zmodelFile)) {
+        console.warn(`ZenStack model already exists at ${zmodelFile}, not generating a new one.`);
+    } else {
+        if (prismaSchema) {
+            // copy over schema.prisma
+            fs.copyFileSync(prismaSchema, zmodelFile);
+        } else {
+            // create a new model
+            const starterContent = fs.readFileSync(path.join(__dirname, '../../res/starter.zmodel'), 'utf-8');
+            fs.writeFileSync(zmodelFile, starterContent);
+            sampleModelGenerated = true;
+        }
+    }
+
+    ensurePackage('prisma', true, options.packageManager, 'latest', projectPath);
+    ensurePackage('@prisma/client', false, options.packageManager, 'latest', projectPath);
+
+    const tag = options.tag ?? getVersion();
+    installPackage('zenstack', true, options.packageManager, tag, projectPath);
+    installPackage('@zenstackhq/runtime', false, options.packageManager, tag, projectPath);
+
+    if (sampleModelGenerated) {
+        console.log(`Sample model generated at: ${colors.blue(zmodelFile)}
+
+Please check the following guide on how to model your app:
+    https://zenstack.dev/#/modeling-your-app.`);
+    } else if (prismaSchema) {
+        console.log(
+            `Your current Prisma schema "${prismaSchema}" has been copied to "${zmodelFile}".
+Moving forward please edit this file and run "zenstack generate" to regenerate Prisma schema.`
+        );
+    }
+
+    console.log(colors.green('\nProject initialized successfully!'));
+
+    if (options.versionCheck) {
+        await checkNewVersion();
+    }
+}