| #!/usr/bin/env bash |
| # Copyright 2023 The Go Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style |
| # license that can be found in the LICENSE file. |
| |
| # This script copies this directory to golang.org/x/exp/trace. |
| # Just point it at a Go commit or a local Go checkout. |
| |
| set -e |
| |
| if [ "$#" -ne 1 ]; then |
| echo 'gen.bash expects one argument: a go.googlesource.com/go commit hash to generate the package from or a path to a Go checkout' |
| exit 1 |
| fi |
| |
| # Determine the source. |
| if [ -d $1 ]; then |
| echo "assuming Go checkout at $1..." |
| |
| # Select the Go checkout. |
| GODIR=$1 |
| else |
| echo "using $1 as a commit hash..." |
| |
| # Check out Go. |
| TMP=$(mktemp -d) |
| git -C $TMP clone https://go.googlesource.com/go |
| git -C $TMP/go checkout $1 |
| GODIR=$TMP/go |
| fi |
| |
| # Define src and dst. |
| SRC=$GODIR/src/internal/trace/v2 |
| DST=$(dirname $0) |
| |
| # Copy. |
| rsync -av --delete $SRC/ $DST |
| rm $DST/mkexp.bash |
| |
| # Remove the trace_test.go file and the testprogs it invokes. |
| # This really tests the tracer, it's not necessary to it bring along |
| # The trace tests are also problematic because they fail to run on |
| # Go versions before tip. The testprog directory is problematic because |
| # of //go:build ignore, so we'd have to complicate the logic below to |
| # support it. |
| rm $DST/trace_test.go |
| rm -r $DST/testdata/testprog |
| |
| # Remove the oldtrace testdata to avoid checking in new binary files. |
| # Remove oldtrace_test.go and internal/oldtrace/parser_test.go because |
| # they fail without this data. |
| rm -r $DST/internal/oldtrace/testdata |
| rm $DST/oldtrace_test.go |
| rm $DST/internal/oldtrace/parser_test.go |
| |
| # Remove mktests.go because its a //go:build ignore file, so it would |
| # complicate the logic below. This codebase isn't the source of truth |
| # anyway. |
| rm $DST/testdata/mktests.go |
| |
| # Make some packages internal. |
| mv $DST/raw $DST/internal/raw |
| mv $DST/event $DST/internal/event |
| mv $DST/version $DST/internal/version |
| mv $DST/testtrace $DST/internal/testtrace |
| |
| # Move the debug commands out of testdata. |
| mv $DST/testdata/cmd $DST/cmd |
| |
| # Fix up import paths. |
| find $DST -name '*.go' | xargs -- sed -i 's/internal\/trace\/v2/golang.org\/x\/exp\/trace/' |
| find $DST -name '*.go' | xargs -- sed -i 's/golang.org\/x\/exp\/trace\/raw/golang.org\/x\/exp\/trace\/internal\/raw/' |
| find $DST -name '*.go' | xargs -- sed -i 's/golang.org\/x\/exp\/trace\/event/golang.org\/x\/exp\/trace\/internal\/event/' |
| find $DST -name '*.go' | xargs -- sed -i 's/golang.org\/x\/exp\/trace\/event\/go122/golang.org\/x\/exp\/trace\/internal\/event\/go122/' |
| find $DST -name '*.go' | xargs -- sed -i 's/golang.org\/x\/exp\/trace\/version/golang.org\/x\/exp\/trace\/internal\/version/' |
| find $DST -name '*.go' | xargs -- sed -i 's/golang.org\/x\/exp\/trace\/testtrace/golang.org\/x\/exp\/trace\/internal\/testtrace/' |
| find $DST -name '*.go' | xargs -- sed -i 's/internal\/txtar/golang.org\/x\/tools\/txtar/' |
| |
| # Add build tag for Go 1.21 and generated code comment. |
| find $DST -name '*.go' | xargs -- sed -i '/LICENSE file./a \ |
| \ |
| // Code generated by "gen.bash" from internal/trace/v2; DO NOT EDIT.\n\n//go:build go1.21' |
| |
| # Format the files. |
| find $DST -name '*.go' | xargs -- gofmt -w -s |
| |
| # Restore known files. |
| git checkout gen.bash flightrecorder.go flightrecorder_test.go |