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build(esbuild): support multiple IIFE packages

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Support multiple IIFE packages by namespacing all of them into a
`globalThis.__esbuild_esm_mermaid_nm` object.
This commit is contained in:
Alois Klink
2025-04-07 17:41:14 +08:00
parent ceb8d4c7ef
commit 92c0aa4331
1 changed files with 5 additions and 2 deletions
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7
.esbuild/util.ts
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@@ -58,6 +58,7 @@ export const getBuildConfig = (options: MermaidBuildOptions): BuildOptions => {
format,
minify,
options: { name, file, packageName },
globalName = 'mermaid',
} = options;
const external: string[] = ['require', 'fs', 'path'];
const outFileName = getFileName(name, options);
@@ -68,6 +69,7 @@ export const getBuildConfig = (options: MermaidBuildOptions): BuildOptions => {
},
metafile,
minify,
globalName,
logLevel: 'info',
chunkNames: `chunks/${outFileName}/[name]-[hash]`,
define: {
@@ -89,11 +91,12 @@ export const getBuildConfig = (options: MermaidBuildOptions): BuildOptions => {
if (format === 'iife') {
output.format = 'iife';
output.splitting = false;
output.globalName = '__esbuild_esm_mermaid';
const originalGlobalName = output.globalName ?? 'mermaid';
output.globalName = `__esbuild_esm_mermaid_nm[${JSON.stringify(originalGlobalName)}]`;
// Workaround for removing the .default access in esbuild IIFE.
// https://github.com/mermaid-js/mermaid/pull/4109#discussion_r1292317396
output.footer = {
js: 'globalThis.mermaid = globalThis.__esbuild_esm_mermaid.default;',
js: `globalThis[${JSON.stringify(originalGlobalName)}] = globalThis.${output.globalName}.default;`,
};
output.outExtension = { '.js': '.js' };
} else {