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Russ Cox 3afa5daabd cmd/distpack: sort files in standard walk order
The code was sorting files in the archives entirely by path string,
but that's not what fs.WalkDir would do. In a directory with
subdirectory foo/bar and file foo/bar.go, foo/bar gets visited
first, so foo/bar/baz appears before foo/bar.go, even though
"foo/bar/baz" > "foo/bar.go".

This CL replaces the string comparison with a path-aware
comparison that places foo/bar/baz before foo/bar.go,
so that if the tar file is extracted and then repacked using
fs.WalkDir, the files will remain in the same order.

This will make it easier to compare the pristine distpack-produced
tgz for darwin against the rebuilt tgz with signed binaries.

Before:
% tar tzvf /tmp/cmddist.tgz | grep -C1 runtime/cgo.go
-rw-r--r--  0 0      0       11122 Jul 13 15:00 go/src/runtime/callers_test.go
-rw-r--r--  0 0      0        2416 Jul 13 15:00 go/src/runtime/cgo.go
-rw-r--r--  0 0      0        2795 Jul 13 15:00 go/src/runtime/cgo/abi_amd64.h

After:
% tar tzvf pkg/distpack/go1.21rsc.src.tar.gz | grep -C1 runtime/cgo.go
-rw-r--r--  0 0      0        1848 Dec 31  1969 go/src/runtime/cgo/signal_ios_arm64.s
-rw-r--r--  0 0      0        2416 Dec 31  1969 go/src/runtime/cgo.go
-rw-r--r--  0 0      0        2479 Dec 31  1969 go/src/runtime/cgo_mmap.go

For #24904.
For #61513.

Change-Id: Ib7374bc0d6324377f81c561bef57fd87b2111b98
Reviewed-on: https://go-review.googlesource.com/c/go/+/511977
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-07-26 19:28:08 +00:00
.github doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
api go/ast: add Unparen(Expr) helper 2023-07-20 20:19:51 +00:00
doc spec: update section on type unification for Go 1.21 2023-07-26 00:02:26 +00:00
lib/time lib/time: update to 2023c/2023c 2023-05-03 20:14:11 +00:00
misc misc/wasm: switch default WASI runtime 2023-07-26 14:30:35 +00:00
src cmd/distpack: sort files in standard walk order 2023-07-26 19:28:08 +00:00
test cmd/compile: add indexed SET* opcodes for amd64 2023-07-26 17:19:57 +00:00
.gitattributes
.gitignore internal/platform,cmd/dist: export the list of supported platforms 2023-06-22 19:44:52 +00:00
CONTRIBUTING.md doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
LICENSE
PATENTS
README.md README: update from CC-BY-3.0 to CC-BY-4.0 2022-11-02 20:14:56 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00
codereview.cfg
go.env cmd/go: additional doc-inspired tests and bug fixes 2023-06-06 19:18:46 +00:00

README.md

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