diff options
Diffstat (limited to 'node_modules/webpack/lib/performance')
4 files changed, 186 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/performance/AssetsOverSizeLimitWarning.js b/node_modules/webpack/lib/performance/AssetsOverSizeLimitWarning.js new file mode 100644 index 00000000..aac8b65a --- /dev/null +++ b/node_modules/webpack/lib/performance/AssetsOverSizeLimitWarning.js @@ -0,0 +1,30 @@ +/* + MIT License http://www.opensource.org/licenses/mit-license.php + Author Sean Larkin @thelarkinn +*/ +"use strict"; + +const WebpackError = require("../WebpackError"); +const SizeFormatHelpers = require("../SizeFormatHelpers"); + +module.exports = class AssetsOverSizeLimitWarning extends WebpackError { + constructor(assetsOverSizeLimit, assetLimit) { + const assetLists = assetsOverSizeLimit + .map( + asset => + `\n ${asset.name} (${SizeFormatHelpers.formatSize(asset.size)})` + ) + .join(""); + + super(`asset size limit: The following asset(s) exceed the recommended size limit (${SizeFormatHelpers.formatSize( + assetLimit + )}). +This can impact web performance. +Assets: ${assetLists}`); + + this.name = "AssetsOverSizeLimitWarning"; + this.assets = assetsOverSizeLimit; + + Error.captureStackTrace(this, this.constructor); + } +}; diff --git a/node_modules/webpack/lib/performance/EntrypointsOverSizeLimitWarning.js b/node_modules/webpack/lib/performance/EntrypointsOverSizeLimitWarning.js new file mode 100644 index 00000000..3c29553d --- /dev/null +++ b/node_modules/webpack/lib/performance/EntrypointsOverSizeLimitWarning.js @@ -0,0 +1,30 @@ +/* + MIT License http://www.opensource.org/licenses/mit-license.php + Author Sean Larkin @thelarkinn +*/ +"use strict"; + +const WebpackError = require("../WebpackError"); +const SizeFormatHelpers = require("../SizeFormatHelpers"); + +module.exports = class EntrypointsOverSizeLimitWarning extends WebpackError { + constructor(entrypoints, entrypointLimit) { + const entrypointList = entrypoints + .map( + entrypoint => + `\n ${entrypoint.name} (${SizeFormatHelpers.formatSize( + entrypoint.size + )})\n${entrypoint.files.map(asset => ` ${asset}`).join("\n")}` + ) + .join(""); + super(`entrypoint size limit: The following entrypoint(s) combined asset size exceeds the recommended limit (${SizeFormatHelpers.formatSize( + entrypointLimit + )}). This can impact web performance. +Entrypoints:${entrypointList}\n`); + + this.name = "EntrypointsOverSizeLimitWarning"; + this.entrypoints = entrypoints; + + Error.captureStackTrace(this, this.constructor); + } +}; diff --git a/node_modules/webpack/lib/performance/NoAsyncChunksWarning.js b/node_modules/webpack/lib/performance/NoAsyncChunksWarning.js new file mode 100644 index 00000000..c64475f9 --- /dev/null +++ b/node_modules/webpack/lib/performance/NoAsyncChunksWarning.js @@ -0,0 +1,21 @@ +/* + MIT License http://www.opensource.org/licenses/mit-license.php + Author Sean Larkin @thelarkinn +*/ +"use strict"; + +const WebpackError = require("../WebpackError"); + +module.exports = class NoAsyncChunksWarning extends WebpackError { + constructor() { + super( + "webpack performance recommendations: \n" + + "You can limit the size of your bundles by using import() or require.ensure to lazy load some parts of your application.\n" + + "For more info visit https://webpack.js.org/guides/code-splitting/" + ); + + this.name = "NoAsyncChunksWarning"; + + Error.captureStackTrace(this, this.constructor); + } +}; diff --git a/node_modules/webpack/lib/performance/SizeLimitsPlugin.js b/node_modules/webpack/lib/performance/SizeLimitsPlugin.js new file mode 100644 index 00000000..93b43651 --- /dev/null +++ b/node_modules/webpack/lib/performance/SizeLimitsPlugin.js @@ -0,0 +1,105 @@ +/* + MIT License http://www.opensource.org/licenses/mit-license.php + Author Sean Larkin @thelarkinn +*/ +"use strict"; +const EntrypointsOverSizeLimitWarning = require("./EntrypointsOverSizeLimitWarning"); +const AssetsOverSizeLimitWarning = require("./AssetsOverSizeLimitWarning"); +const NoAsyncChunksWarning = require("./NoAsyncChunksWarning"); + +module.exports = class SizeLimitsPlugin { + constructor(options) { + this.hints = options.hints; + this.maxAssetSize = options.maxAssetSize; + this.maxEntrypointSize = options.maxEntrypointSize; + this.assetFilter = options.assetFilter; + } + apply(compiler) { + const entrypointSizeLimit = this.maxEntrypointSize; + const assetSizeLimit = this.maxAssetSize; + const hints = this.hints; + const assetFilter = this.assetFilter || (asset => !asset.endsWith(".map")); + + compiler.hooks.afterEmit.tap("SizeLimitsPlugin", compilation => { + const warnings = []; + + const getEntrypointSize = entrypoint => + entrypoint.getFiles().reduce((currentSize, file) => { + if (assetFilter(file) && compilation.assets[file]) { + return currentSize + compilation.assets[file].size(); + } + + return currentSize; + }, 0); + + const assetsOverSizeLimit = []; + for (const assetName of Object.keys(compilation.assets)) { + if (!assetFilter(assetName)) { + continue; + } + + const asset = compilation.assets[assetName]; + const size = asset.size(); + if (size > assetSizeLimit) { + assetsOverSizeLimit.push({ + name: assetName, + size: size + }); + asset.isOverSizeLimit = true; + } + } + + const entrypointsOverLimit = []; + for (const pair of compilation.entrypoints) { + const name = pair[0]; + const entry = pair[1]; + const size = getEntrypointSize(entry); + + if (size > entrypointSizeLimit) { + entrypointsOverLimit.push({ + name: name, + size: size, + files: entry.getFiles().filter(assetFilter) + }); + entry.isOverSizeLimit = true; + } + } + + if (hints) { + // 1. Individual Chunk: Size < 250kb + // 2. Collective Initial Chunks [entrypoint] (Each Set?): Size < 250kb + // 3. No Async Chunks + // if !1, then 2, if !2 return + if (assetsOverSizeLimit.length > 0) { + warnings.push( + new AssetsOverSizeLimitWarning(assetsOverSizeLimit, assetSizeLimit) + ); + } + if (entrypointsOverLimit.length > 0) { + warnings.push( + new EntrypointsOverSizeLimitWarning( + entrypointsOverLimit, + entrypointSizeLimit + ) + ); + } + + if (warnings.length > 0) { + const hasAsyncChunks = + compilation.chunks.filter(chunk => !chunk.canBeInitial()).length > + 0; + + if (!hasAsyncChunks) { + warnings.push(new NoAsyncChunksWarning()); + } + + if (hints === "error") { + compilation.errors.push(...warnings); + } else { + compilation.warnings.push(...warnings); + } + } + } + }); + } +}; |