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Support webpack@4 and a few other things. #61

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Closed
wants to merge 10 commits into from
58 changes: 36 additions & 22 deletions index.js
Original file line number Diff line number Diff line change
Expand Up @@ -222,21 +222,14 @@ ExtractTextPlugin.prototype.apply = function(compiler) {
var id = this.id;
var extractedChunks, entryChunks, initialChunks;
compilation.plugin("optimize-tree", function(chunks, modules, callback) {
extractedChunks = chunks.map(function() {
return new Chunk();
extractedChunks = chunks.map(function(chunk) {
return new Chunk(chunk.name);
});
chunks.forEach(function(chunk, i) {
var extractedChunk = extractedChunks[i];
extractedChunk.index = i;
extractedChunk.originalChunk = chunk;
extractedChunk.name = chunk.name;
extractedChunk.entrypoints = chunk.entrypoints;
chunk.chunks.forEach(function(c) {
extractedChunk.addChunk(extractedChunks[chunks.indexOf(c)]);
});
chunk.parents.forEach(function(c) {
extractedChunk.addParent(extractedChunks[chunks.indexOf(c)]);
});
extractedChunk.originalChunk = chunk;
splitChunk(chunk, extractedChunk);
});
async.forEach(chunks, function(chunk, callback) {
var extractedChunk = extractedChunks[chunks.indexOf(chunk)];
Expand Down Expand Up @@ -355,32 +348,53 @@ function isChunk(chunk, error) {
function forEachChunkModule(chunk, cb) {
isChunk(chunk);

// webpack >= 4.x.x
if (chunk.modulesIterable) {
Array.from(chunk.modulesIterable, (x) => {
cb(x);
return x;
})
}
// webpack >= 3.x.x
if (typeof chunk.forEachModule === 'function') {
else if (typeof chunk.forEachModule === 'function') {
chunk.forEachModule(cb);
}
// webpack < 3.x.x
else {
// webpack < 3.x.x
chunk.modules.forEach(cb);
}

// Nothing better to return...
return chunk;
}

function getChunkModulesArray(chunk) {
isChunk(chunk);

var arr = [];

// webpack >= 4.x.x
if (chunk.modulesIterable) {
return Array.from(chunk.modulesIterable);
}
// webpack >= 3.x.x
if ( typeof chunk.mapModules === 'function' ) {
arr = chunk.mapModules();
else if ( typeof chunk.mapModules === 'function' ) {
return chunk.mapModules();
}
else {
// webpack < 3.x.x
arr = chunk.modules.slice();
return chunk.modules.slice();
}
}

return arr;
function splitChunk(chunk, extractedChunk) {
// webpack >= 4.x.x
if (typeof chunk.split === 'function') {
chunk.split(extractedChunk);
}
// webpack < 4.x.x
else {
extractedChunk.entrypoints = chunk.entrypoints;
chunk.chunks.forEach(function(c) {
extractedChunk.addChunk(extractedChunks[chunks.indexOf(c)]);
});
chunk.parents.forEach(function(c) {
extractedChunk.addParent(extractedChunks[chunks.indexOf(c)]);

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You'll need to pass down extractedChunks to this function

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@PAkerstrand Good catch. It would be nice if there was a way to smoke test this against older versions. Thanks!

});
}
}