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Merge pull request #14904 from Snuffleupagus/preprocess-blank-lines

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Avoid the `preprocess`-function adding consecutive blank lines
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Jonas Jenwald 2022-05-12 10:07:52 +02:00 committed by GitHub
commit 8dc836d105
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1 changed files with 8 additions and 0 deletions
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8
external/builder/builder.js vendored
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@ -4,6 +4,8 @@ const fs = require("fs"),
path = require("path"),
vm = require("vm");
const AllWhitespaceRegexp = /^\s+$/g;
/**
* A simple preprocessor that is based on the Firefox preprocessor
* (https://dxr.mozilla.org/mozilla-central/source/build/docs/preprocessor.rst).
@ -69,6 +71,12 @@ function preprocess(inFilename, outFilename, defines) {
typeof outFilename === "function"
? outFilename
: function (line) {
if (!line || AllWhitespaceRegexp.test(line)) {
const prevLine = out[out.length - 1];
if (!prevLine || AllWhitespaceRegexp.test(prevLine)) {
return; // Avoid adding consecutive blank lines.
}
}
out.push(line);
};
function evaluateCondition(code) {