121 lines
3.1 KiB
JavaScript
121 lines
3.1 KiB
JavaScript
// webpack-health-plugin.js
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// Webpack plugin that tracks compilation state and health metrics
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class WebpackHealthPlugin {
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constructor() {
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this.status = {
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state: 'idle', // idle, compiling, success, failed
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errors: [],
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warnings: [],
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lastCompileTime: null,
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lastSuccessTime: null,
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compileDuration: 0,
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totalCompiles: 0,
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firstCompileTime: null,
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};
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}
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apply(compiler) {
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const pluginName = 'WebpackHealthPlugin';
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// Hook: Compilation started
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compiler.hooks.compile.tap(pluginName, () => {
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const now = Date.now();
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this.status.state = 'compiling';
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this.status.lastCompileTime = now;
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if (!this.status.firstCompileTime) {
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this.status.firstCompileTime = now;
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}
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});
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// Hook: Compilation completed
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compiler.hooks.done.tap(pluginName, (stats) => {
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const info = stats.toJson({
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all: false,
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errors: true,
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warnings: true,
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});
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this.status.totalCompiles++;
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this.status.compileDuration = Date.now() - this.status.lastCompileTime;
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if (stats.hasErrors()) {
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this.status.state = 'failed';
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this.status.errors = info.errors.map(err => ({
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message: err.message || String(err),
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stack: err.stack,
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moduleName: err.moduleName,
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loc: err.loc,
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}));
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} else {
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this.status.state = 'success';
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this.status.lastSuccessTime = Date.now();
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this.status.errors = [];
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}
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if (stats.hasWarnings()) {
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this.status.warnings = info.warnings.map(warn => ({
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message: warn.message || String(warn),
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moduleName: warn.moduleName,
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loc: warn.loc,
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}));
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} else {
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this.status.warnings = [];
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}
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});
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// Hook: Compilation failed
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compiler.hooks.failed.tap(pluginName, (error) => {
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this.status.state = 'failed';
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this.status.errors = [{
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message: error.message,
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stack: error.stack,
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}];
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this.status.compileDuration = Date.now() - this.status.lastCompileTime;
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});
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// Hook: Invalid (file changed, recompiling)
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compiler.hooks.invalid.tap(pluginName, () => {
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this.status.state = 'compiling';
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});
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}
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getStatus() {
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return {
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...this.status,
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// Add computed fields
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isHealthy: this.status.state === 'success',
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errorCount: this.status.errors.length,
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warningCount: this.status.warnings.length,
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hasCompiled: this.status.totalCompiles > 0,
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};
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}
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// Get simplified status for quick checks
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getSimpleStatus() {
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return {
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state: this.status.state,
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isHealthy: this.status.state === 'success',
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errorCount: this.status.errors.length,
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warningCount: this.status.warnings.length,
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};
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}
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// Reset statistics (useful for testing)
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reset() {
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this.status = {
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state: 'idle',
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errors: [],
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warnings: [],
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lastCompileTime: null,
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lastSuccessTime: null,
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compileDuration: 0,
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totalCompiles: 0,
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firstCompileTime: null,
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};
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}
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}
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module.exports = WebpackHealthPlugin;
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