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fix(build): sourceMappingUrl for non-js chunks

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This commit is contained in:
Don Isaac
2025-01-03 21:37:47 -08:00
parent d5fc928ca8
commit b6d43eb4e4
1 changed files with 22 additions and 8 deletions
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30
src/bundler/bundle_v2.zig
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@@ -12975,7 +12975,7 @@ pub const LinkerContext = struct {
);
switch (c.options.source_maps) {
.external, .linked => |tag| {
.external, .linked => |tag| blk: {
const output_source_map = chunk.output_source_map.finalize(bun.default_allocator, code_result.shifts) catch @panic("Failed to allocate memory for external source map");
var source_map_final_rel_path = default_allocator.alloc(u8, chunk.final_rel_path.len + ".map".len) catch unreachable;
bun.copy(u8, source_map_final_rel_path, chunk.final_rel_path);
@@ -12987,14 +12987,16 @@ pub const LinkerContext = struct {
else
.{ "", std.fs.path.basename(source_map_final_rel_path) };
const source_map_start = "//# sourceMappingURL=";
const total_len = code_result.buffer.len + source_map_start.len + a.len + b.len + "\n".len;
const comment_start, const comment_end = chunk.content.commentStartEnd() orelse break :blk;
const source_map_start = " sourceMappingURL=";
const total_len = code_result.buffer.len + comment_start.len + source_map_start.len + a.len + b.len + comment_end.len;
var buf = std.ArrayList(u8).initCapacity(Chunk.IntermediateOutput.allocatorForSize(total_len), total_len) catch @panic("Failed to allocate memory for output file with inline source map");
buf.appendSliceAssumeCapacity(code_result.buffer);
buf.appendSliceAssumeCapacity(comment_start);
buf.appendSliceAssumeCapacity(source_map_start);
buf.appendSliceAssumeCapacity(a);
buf.appendSliceAssumeCapacity(b);
buf.appendAssumeCapacity('\n');
buf.appendSliceAssumeCapacity(comment_end);
Chunk.IntermediateOutput.allocatorForSize(code_result.buffer.len).free(code_result.buffer);
code_result.buffer = buf.items;
@@ -13018,21 +13020,23 @@ pub const LinkerContext = struct {
.is_executable = false,
});
},
.@"inline" => {
.@"inline" => blk: {
const output_source_map = chunk.output_source_map.finalize(bun.default_allocator, code_result.shifts) catch @panic("Failed to allocate memory for external source map");
const encode_len = base64.encodeLen(output_source_map);
const source_map_start = "//# sourceMappingURL=data:application/json;base64,";
const total_len = code_result.buffer.len + source_map_start.len + encode_len + 1;
const comment_start, const comment_end = chunk.content.commentStartEnd() orelse break :blk;
const source_map_start = " sourceMappingURL=data:application/json;base64,";
const total_len = code_result.buffer.len + comment_start.len + source_map_start.len + encode_len + comment_end.len;
var buf = std.ArrayList(u8).initCapacity(Chunk.IntermediateOutput.allocatorForSize(total_len), total_len) catch @panic("Failed to allocate memory for output file with inline source map");
buf.appendSliceAssumeCapacity(code_result.buffer);
buf.appendSliceAssumeCapacity(comment_start);
buf.appendSliceAssumeCapacity(source_map_start);
buf.items.len += encode_len;
_ = base64.encode(buf.items[buf.items.len - encode_len ..], output_source_map);
buf.appendAssumeCapacity('\n');
buf.appendSliceAssumeCapacity(comment_end);
Chunk.IntermediateOutput.allocatorForSize(code_result.buffer.len).free(code_result.buffer);
code_result.buffer = buf.items;
},
@@ -15478,6 +15482,16 @@ pub const Chunk = struct {
.html => "html",
};
}
/// Start and end of a comment. Used for sourcemaps, so HTML
/// intentionally returns null.
pub fn commentStartEnd(this: *const Content) ?[2][]const u8 {
return switch (this.*) {
.javascript => [2][]const u8{ "//#", "\n" },
.css => [2][]const u8{ "/*#", "*/\n" },
.html => null,
};
}
};
};