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support inline source map from multiple files (#3058)

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fixes #145
This commit is contained in:
Alex Lam S.L
2018-04-06 16:04:15 +08:00
committed by GitHub
parent 0b62a28b47
commit 923deeff35
4 changed files with 83 additions and 48 deletions
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41
lib/minify.js
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@@ -7,15 +7,23 @@ var to_base64 = typeof btoa == "undefined" ? function(str) {
return new Buffer(str).toString("base64");
} : btoa;
function read_source_map(code) {
function read_source_map(name, code) {
var match = /\n\/\/# sourceMappingURL=data:application\/json(;.*?)?;base64,(.*)/.exec(code);
if (!match) {
AST_Node.warn("inline source map not found");
AST_Node.warn("inline source map not found: " + name);
return null;
}
return to_ascii(match[2]);
}
function parse_source_map(content) {
try {
return JSON.parse(content);
} catch (ex) {
throw new Error("invalid input source map: " + content);
}
}
function set_shorthand(name, options, keys) {
if (options[name]) {
keys.forEach(function(key) {
@@ -113,7 +121,7 @@ function minify(files, options) {
};
}
if (timings) timings.parse = Date.now();
var toplevel;
var source_maps, toplevel;
if (files instanceof AST_Toplevel) {
toplevel = files;
} else {
@@ -122,13 +130,23 @@ function minify(files, options) {
}
options.parse = options.parse || {};
options.parse.toplevel = null;
var source_map_content = options.sourceMap && options.sourceMap.content;
if (typeof source_map_content == "string" && source_map_content != "inline") {
source_map_content = parse_source_map(source_map_content);
}
source_maps = source_map_content && Object.create(null);
for (var name in files) if (HOP(files, name)) {
options.parse.filename = name;
options.parse.toplevel = parse(files[name], options.parse);
if (options.sourceMap && options.sourceMap.content == "inline") {
if (Object.keys(files).length > 1)
throw new Error("inline source map only works with singular input");
options.sourceMap.content = read_source_map(files[name]);
if (source_maps) {
if (source_map_content == "inline") {
var inlined_content = read_source_map(name, files[name]);
if (inlined_content) {
source_maps[name] = parse_source_map(inlined_content);
}
} else {
source_maps[name] = source_map_content;
}
}
}
toplevel = options.parse.toplevel;
@@ -164,16 +182,9 @@ function minify(files, options) {
}
if (!HOP(options.output, "code") || options.output.code) {
if (options.sourceMap) {
if (typeof options.sourceMap.content == "string") {
try {
options.sourceMap.content = JSON.parse(options.sourceMap.content);
} catch (ex) {
throw new Error("invalid input source map: " + options.sourceMap.content);
}
}
options.output.source_map = SourceMap({
file: options.sourceMap.filename,
orig: options.sourceMap.content,
orig: source_maps,
root: options.sourceMap.root
});
if (options.sourceMap.includeSources) {