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Make debug logs configurable

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This commit is contained in:
Jarred Sumner
2022-10-16 17:03:06 -07:00
parent 697e105ffa
commit 2888f43c8a
1 changed files with 28 additions and 3 deletions
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31
src/output.zig
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@@ -340,11 +340,15 @@ pub fn print(comptime fmt: string, args: anytype) void {
}
/// Debug-only logs which should not appear in release mode
/// To enable a specific log at runtime, set the environment variable
/// BUN_DEBUG_${TAG} to 1
/// For example, to enable the "foo" log, set the environment variable
/// BUN_DEBUG_foo=1
/// To enable all logs, set the environment variable
/// BUN_DEBUG_ALL=1
const _log_fn = fn (comptime fmt: string, args: anytype) callconv(.Inline) void;
pub fn scoped(comptime tag: @Type(.EnumLiteral), comptime disabled: bool) _log_fn {
const disable = comptime !Environment.isDebug or disabled;
if (comptime disable) {
if (comptime !Environment.isDebug) {
return struct {
pub inline fn log(comptime _: string, _: anytype) void {}
}.log;
@@ -355,8 +359,29 @@ pub fn scoped(comptime tag: @Type(.EnumLiteral), comptime disabled: bool) _log_f
var buffered_writer: BufferedWriter = undefined;
var out: BufferedWriter.Writer = undefined;
var out_set = false;
var really_disable = disabled;
var evaluated_disable = false;
/// Debug-only logs which should not appear in release mode
/// To enable a specific log at runtime, set the environment variable
/// BUN_DEBUG_${TAG} to 1
/// For example, to enable the "foo" log, set the environment variable
/// BUN_DEBUG_foo=1
/// To enable all logs, set the environment variable
/// BUN_DEBUG_ALL=1
pub inline fn log(comptime fmt: string, args: anytype) void {
if (!evaluated_disable) {
evaluated_disable = true;
if (std.os.getenv("BUN_DEBUG_ALL") != null or
std.os.getenv("BUN_DEBUG_" ++ @tagName(tag)) != null)
{
really_disable = false;
}
}
if (really_disable)
return;
if (!out_set) {
buffered_writer = .{
.unbuffered_writer = writer(),