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Robert Griesemer 35ea53dcc8 cmd/gofmt: don't overwrite read-only files
This reverts the changes from https://golang.org/cl/33018: Instead
of writing the result of gofmt to a tmp file and then rename that
to the original (which doesn't preserve the original file's perm
bits, uid, gid, and possibly other properties because it is hard
to do in a platform-independent way - see #17869), use the original
code that simply overwrites the processed file if gofmt was able to
create a backup first. Upon success, the backup is removed, otherwise
it remains.

Fixes #17873.
For #8984.

Change-Id: Ifcf2bf1f84f730e6060f3517d63b45eb16215ae1
Reviewed-on: https://go-review.googlesource.com/33098
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-11-10 23:40:07 +00:00
.github doc: improve issue template 2016-08-29 03:33:28 +00:00
api testing: introduce testing/internal/testdeps for holding testmain dependencies 2016-11-02 19:14:39 +00:00
doc doc: add a CL to go1.8.txt mentioned by Alberto Donizetti 2016-11-08 18:24:42 +00:00
lib/time lib/time: update tzdata to 2016i 2016-11-10 19:14:51 +00:00
misc misc/cgo/testsanitizers: skip tests when vm.overcommit_memory=2 2016-11-03 16:04:33 +00:00
src cmd/gofmt: don't overwrite read-only files 2016-11-10 23:40:07 +00:00
test test/fixedbugs: enable issue 10607 test on ppc64le 2016-11-07 18:42:57 +00:00
.gitattributes .gitattributes: prevent all magic line ending changes 2014-12-12 23:14:54 +00:00
.gitignore cmd/go: fail with nice error message on bad GOOS/GOARCH pair 2016-05-06 01:18:07 +00:00
AUTHORS A+C: update for Go 1.8 2016-11-10 19:35:02 +00:00
CONTRIBUTING.md doc: use new Gerrit URL and mention our instance in CONTRIBUTING.md 2016-03-09 00:52:42 +00:00
CONTRIBUTORS A+C: update for Go 1.8 2016-11-10 19:35:02 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README.md readme: emphasize issue tracker is for bugs/proposals 2015-10-02 18:44:14 +00:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00

The Go Programming Language

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