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- Uses Ben's meteor-babel npm package that has a default config - From a checkout, uses the meteor-babel/register module and compiles at runtime - When meteor-tool is published, precompiles the files - Adds tests to make sure source maps work everywhere
51 lines
1.5 KiB
JavaScript
51 lines
1.5 KiB
JavaScript
import sourceMapSupport from "source-map-support";
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import fs from "fs";
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// Why this file exists:
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// We have two places in the tool where we need to do source maps:
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// 1. Loaded isopacks, which use a special custom source map cache
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// 2. Transpiled tool code from Babel
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//
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// In order to avoid crazy bootstrapping, it would be nice to be able to add
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// functions to look for source maps, so that we can call
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// sourceMapSupport.install as early as possible, and not worry about having
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// the right data structures around.
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//
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// This module maintains a stack of source map retrieval functions, which are
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// called in reverse order until one returns a truthy value.
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var stack = [];
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// Add a function to locate source maps; all of the functions are executed in
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// reverse order
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export function push(func) {
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stack.push(func);
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}
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function tryAllSourceMapRetrievers(filename) {
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for (var i = stack.length - 1; i >= 0; i--) {
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var sourceMapData = stack[i](filename);
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if (sourceMapData) {
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return sourceMapData;
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}
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}
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return null;
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}
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sourceMapSupport.install({
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retrieveSourceMap: tryAllSourceMapRetrievers,
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// For now, don't fix the source line in uncaught exceptions, because we
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// haven't fixed handleUncaughtExceptions in source-map-support to properly
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// locate the source files.
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handleUncaughtExceptions: false
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});
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// Default retrievers
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// Always fall back to the default in the end
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push(sourceMapSupport.retrieveSourceMap);
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push(require("meteor-babel/register").retrieveSourceMap); // #RemoveInProd this line is removed in isopack.js
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