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Merge branch 'master' into madlittlemods/686-682-local-friendly-devel…
…opment-and-commonjs Conflicts: package.json scripts/sdk/base-manifest.json scripts/sdk/build.sh
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@@ -7,4 +7,5 @@ bundle.js | |
target | ||
lib | ||
*.tar.gz | ||
.eslintcache | ||
.eslintcache | ||
.tmp |
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/* | ||
Copyright 2021 The Matrix.org Foundation C.I.C. | ||
Licensed under the Apache License, Version 2.0 (the "License"); | ||
you may not use this file except in compliance with the License. | ||
You may obtain a copy of the License at | ||
http://www.apache.org/licenses/LICENSE-2.0 | ||
Unless required by applicable law or agreed to in writing, software | ||
distributed under the License is distributed on an "AS IS" BASIS, | ||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
See the License for the specific language governing permissions and | ||
limitations under the License. | ||
*/ | ||
const path = require('path'); | ||
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async function readCSSSource(location) { | ||
const fs = require("fs").promises; | ||
const path = require("path"); | ||
const resolvedLocation = path.resolve(__dirname, "../../", `${location}/theme.css`); | ||
const data = await fs.readFile(resolvedLocation); | ||
return data; | ||
} | ||
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function getRootSectionWithVariables(variables) { | ||
return `:root{\n${Object.entries(variables).reduce((acc, [key, value]) => acc + `--${key}: ${value};\n`, "")} }\n\n`; | ||
} | ||
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function appendVariablesToCSS(variables, cssSource) { | ||
return cssSource + getRootSectionWithVariables(variables); | ||
} | ||
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function parseBundle(bundle) { | ||
const chunkMap = new Map(); | ||
const assetMap = new Map(); | ||
let runtimeThemeChunk; | ||
for (const [fileName, info] of Object.entries(bundle)) { | ||
if (!fileName.endsWith(".css")) { | ||
continue; | ||
} | ||
if (info.type === "asset") { | ||
/** | ||
* So this is the css assetInfo that contains the asset hashed file name. | ||
* We'll store it in a separate map indexed via fileName (unhashed) to avoid | ||
* searching through the bundle array later. | ||
*/ | ||
assetMap.set(info.name, info); | ||
continue; | ||
} | ||
if (info.facadeModuleId?.includes("type=runtime")) { | ||
/** | ||
* We have a separate field in manifest.source just for the runtime theme, | ||
* so store this separately. | ||
*/ | ||
runtimeThemeChunk = info; | ||
continue; | ||
} | ||
const location = info.facadeModuleId?.match(/(.+)\/.+\.css/)?.[1]; | ||
if (!location) { | ||
throw new Error("Cannot find location of css chunk!"); | ||
} | ||
const array = chunkMap.get(location); | ||
if (!array) { | ||
chunkMap.set(location, [info]); | ||
} | ||
else { | ||
array.push(info); | ||
} | ||
} | ||
return { chunkMap, assetMap, runtimeThemeChunk }; | ||
} | ||
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module.exports = function buildThemes(options) { | ||
let manifest, variants, defaultDark, defaultLight; | ||
let isDevelopment = false; | ||
const virtualModuleId = '@theme/' | ||
const resolvedVirtualModuleId = '\0' + virtualModuleId; | ||
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return { | ||
name: "build-themes", | ||
enforce: "pre", | ||
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configResolved(config) { | ||
if (config.command === "serve") { | ||
isDevelopment = true; | ||
} | ||
}, | ||
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async buildStart() { | ||
if (isDevelopment) { return; } | ||
const { themeConfig } = options; | ||
for (const [name, location] of Object.entries(themeConfig.themes)) { | ||
manifest = require(`${location}/manifest.json`); | ||
variants = manifest.values.variants; | ||
for (const [variant, details] of Object.entries(variants)) { | ||
const fileName = `theme-${name}-${variant}.css`; | ||
if (name === themeConfig.default && details.default) { | ||
// This is the default theme, stash the file name for later | ||
if (details.dark) { | ||
defaultDark = fileName; | ||
} | ||
else { | ||
defaultLight = fileName; | ||
} | ||
} | ||
// emit the css as built theme bundle | ||
this.emitFile({ | ||
type: "chunk", | ||
id: `${location}/theme.css?variant=${variant}${details.dark? "&dark=true": ""}`, | ||
fileName, | ||
}); | ||
} | ||
// emit the css as runtime theme bundle | ||
this.emitFile({ | ||
type: "chunk", | ||
id: `${location}/theme.css?type=runtime`, | ||
fileName: `theme-${name}-runtime.css`, | ||
}); | ||
} | ||
}, | ||
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resolveId(id) { | ||
if (id.startsWith(virtualModuleId)) { | ||
return '\0' + id; | ||
} | ||
}, | ||
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async load(id) { | ||
if (isDevelopment) { | ||
/** | ||
* To load the theme during dev, we need to take a different approach because emitFile is not supported in dev. | ||
* We solve this by resolving virtual file "@theme/name/variant" into the necessary css import. | ||
* This virtual file import is removed when hydrogen is built (see transform hook). | ||
*/ | ||
if (id.startsWith(resolvedVirtualModuleId)) { | ||
let [theme, variant, file] = id.substr(resolvedVirtualModuleId.length).split("/"); | ||
if (theme === "default") { | ||
theme = options.themeConfig.default; | ||
} | ||
const location = options.themeConfig.themes[theme]; | ||
const manifest = require(`${location}/manifest.json`); | ||
const variants = manifest.values.variants; | ||
if (!variant || variant === "default") { | ||
// choose the first default variant for now | ||
// this will need to support light/dark variants as well | ||
variant = Object.keys(variants).find(variantName => variants[variantName].default); | ||
} | ||
if (!file) { | ||
file = "index.js"; | ||
} | ||
switch (file) { | ||
case "index.js": { | ||
const isDark = variants[variant].dark; | ||
return `import "${path.resolve(`${location}/theme.css`)}${isDark? "?dark=true": ""}";` + | ||
`import "@theme/${theme}/${variant}/variables.css"`; | ||
} | ||
case "variables.css": { | ||
const variables = variants[variant].variables; | ||
const css = getRootSectionWithVariables(variables); | ||
return css; | ||
} | ||
} | ||
} | ||
} | ||
else { | ||
const result = id.match(/(.+)\/theme.css\?variant=([^&]+)/); | ||
if (result) { | ||
const [, location, variant] = result; | ||
const cssSource = await readCSSSource(location); | ||
const config = variants[variant]; | ||
return appendVariablesToCSS(config.variables, cssSource); | ||
} | ||
return null; | ||
} | ||
}, | ||
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transform(code, id) { | ||
if (isDevelopment) { | ||
return; | ||
} | ||
/** | ||
* Removes develop-only script tag; this cannot be done in transformIndexHtml hook because | ||
* by the time that hook runs, the import is added to the bundled js file which would | ||
* result in a runtime error. | ||
*/ | ||
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const devScriptTag = | ||
/<script type="module"> import "@theme\/.+"; <\/script>/; | ||
if (id.endsWith("index.html")) { | ||
const htmlWithoutDevScript = code.replace(devScriptTag, ""); | ||
return htmlWithoutDevScript; | ||
} | ||
}, | ||
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transformIndexHtml(_, ctx) { | ||
if (isDevelopment) { | ||
// Don't add default stylesheets to index.html on dev | ||
return; | ||
} | ||
let darkThemeLocation, lightThemeLocation; | ||
for (const [, bundle] of Object.entries(ctx.bundle)) { | ||
if (bundle.name === defaultDark) { | ||
darkThemeLocation = bundle.fileName; | ||
} | ||
if (bundle.name === defaultLight) { | ||
lightThemeLocation = bundle.fileName; | ||
} | ||
} | ||
return [ | ||
{ | ||
tag: "link", | ||
attrs: { | ||
rel: "stylesheet", | ||
type: "text/css", | ||
media: "(prefers-color-scheme: dark)", | ||
href: `./${darkThemeLocation}`, | ||
} | ||
}, | ||
{ | ||
tag: "link", | ||
attrs: { | ||
rel: "stylesheet", | ||
type: "text/css", | ||
media: "(prefers-color-scheme: light)", | ||
href: `./${lightThemeLocation}`, | ||
} | ||
}, | ||
]; | ||
}, | ||
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generateBundle(_, bundle) { | ||
const { assetMap, chunkMap, runtimeThemeChunk } = parseBundle(bundle); | ||
for (const [location, chunkArray] of chunkMap) { | ||
const manifest = require(`${location}/manifest.json`); | ||
const compiledVariables = options.compiledVariables.get(location); | ||
const derivedVariables = compiledVariables["derived-variables"]; | ||
const icon = compiledVariables["icon"]; | ||
manifest.source = { | ||
"built-asset": chunkArray.map(chunk => assetMap.get(chunk.fileName).fileName), | ||
"runtime-asset": assetMap.get(runtimeThemeChunk.fileName).fileName, | ||
"derived-variables": derivedVariables, | ||
"icon": icon | ||
}; | ||
const name = `theme-${manifest.name}.json`; | ||
this.emitFile({ | ||
type: "asset", | ||
name, | ||
source: JSON.stringify(manifest), | ||
}); | ||
} | ||
}, | ||
} | ||
} |
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