URLs in GOPROXY may now be separated with commas (,) or pipes (|). If
a request to a proxy fails with any error (including connection errors
and timeouts) and the proxy URL is followed by a pipe, the go command
will try the request with the next proxy in the list. If the proxy is
followed by a comma, the go command will only try the next proxy if
the error a 404 or 410 HTTP response.
The go command will determine how to connect to the checksum database
using the same logic. Before accessing the checksum database, the go
command sends a request to <proxyURL>/sumdb/<sumdb-name>/supported.
If a proxy responds with 404 or 410, or if any other error occurs and
the proxy URL in GOPROXY is followed by a pipe, the go command will
try the request with the next proxy. If all proxies respond with 404
or 410 or are configured to fall back on errors, the go command will
connect to the checksum database directly.
This CL does not change the default value or meaning of GOPROXY.
Fixes#37367
Change-Id: If53152ec1c3282c67d4909818b666af58884fb2c
Reviewed-on: https://go-review.googlesource.com/c/go/+/223257
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
If TestMain reports a wrong exit code to os.Exit, the test will be
exited with exist code inconsist with test results.
This CL eliminates the requirement of calling os.Exit in TestMain.
Now, m.Run records the execution status of its test, the outer
main func will call os.Exit with that exit code if TestMain does
not call os.Exit.
If TestMain does not call m.Run, the outer main func remain calls
os.Exit(0) as before.
Fixes#34129
Change-Id: I9598023e03b0a6260f0217f34df41c231c7d6489
Reviewed-on: https://go-review.googlesource.com/c/go/+/219639
Reviewed-by: Ian Lance Taylor <iant@golang.org>
currently the snippet is segmented but should be one code snippet.
Change-Id: Ic747faf9bb1b52f9d1786eca70616a05b71ee801
Reviewed-on: https://go-review.googlesource.com/c/go/+/211198
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Make panics more useful by printing values, if their
underlying kind is printable, instead of just their memory address.
Thus now given any custom type derived from any of:
float*, int*, string, uint*
if we have panic with such a result, its value will be printed.
Thus given any of:
type MyComplex128 complex128
type MyFloat64 float64
type MyString string
type MyUintptr uintptr
panic(MyComplex128(32.1 + 10i))
panic(MyFloat64(-93.7))
panic(MyString("This one"))
panic(MyUintptr(93))
They will now print in the panic:
panic: main.MyComplex64(+1.100000e-001+3.000000e+000i)
panic: main.MyFloat64(-9.370000e+001)
panic: main.MyString("This one")
panic: main.MyUintptr(93)
instead of:
panic: (main.MyComplex128) (0xe0100,0x138cc0)
panic: (main.MyFloat64) (0xe0100,0x138068)
panic: (main.MyString) (0x48aa00,0x4c0840)
panic: (main.MyUintptr) (0xe0100,0x137e58)
and anything else will be printed as in the past with:
panic: (main.MyStruct) (0xe4ee0,0x40a0e0)
Also while here, updated the Go1.15 release notes.
Fixes#37531
Change-Id: Ia486424344a386014f2869ab3483e42a9ef48ac4
Reviewed-on: https://go-review.googlesource.com/c/go/+/221779
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This CL documents that unsynchronized send and close operations
on a channel are detected as a race condition.
Fixes#27769
Change-Id: I7495a2d0dd834c3f3b6339f8ca18ea21ae979aa8
Reviewed-on: https://go-review.googlesource.com/c/go/+/219637
Reviewed-by: Rob Pike <r@golang.org>
This removes much of the complexity of the implementation and use of
the cmd/go/internal/cmdflag package, and makes the behavior of GOFLAGS
in 'go test' and 'go vet' more consistent with other subcommands.
Some of the complexity reduction has been offset by code comments and
bug fixes, particularly for the handling of GOPATH arguments and flag
terminators ('--').
Fixes#32471Fixes#18682
Change-Id: I1f6e46a7c679062e1e409e44a2b9f03b9172883b
Reviewed-on: https://go-review.googlesource.com/c/go/+/211358
Reviewed-by: Jay Conrod <jayconrod@google.com>
Adding a link to this guide will provide more value to instructing Go
users to migrate to modules.
Updates #36878
Change-Id: Ie6ab45efcd35cc5e5ba5adc16ba0ca4cca4292bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/220906
Run-TryBot: Alexander Rakoczy <alex@golang.org>
Reviewed-by: thepudds <thepudds1460@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
As far as I can tell, there is no public documentation on this topic,
which cost me several days of debugging.
I am possibly unusual in that I run binaries in production with the
race detector turned on, but I think that others who do the same may
want to be aware of the risk.
Updates #26813.
Updates #37233.
Change-Id: I1f8111bd01d0000596e6057b7cb5ed017d5dc655
Reviewed-on: https://go-review.googlesource.com/c/go/+/220586
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Use consistent indentation for one of the paragraphs.
Include issue number in the visible text, so it is easier to read.
Fixes#36878
Change-Id: Iab857b26b1d27b0137e981126207089db108d530
Reviewed-on: https://go-review.googlesource.com/c/go/+/220646
Reviewed-by: Alexander Rakoczy <alex@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Alexander Rakoczy <alex@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This CL implements Ticker.Reset method in time package.
Benchmark:
name time/op
TickerReset-12 6.41µs ±10%
TickerResetNaive-12 95.7µs ±12%
Fixes#33184
Change-Id: I4cbd31796efa012b2a297bb342158f11a4a31fef
Reviewed-on: https://go-review.googlesource.com/c/go/+/220424
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This reverts CL 217362 (6e5652bebede2d53484a872f6d1dfeb498b0b50c.)
Reason for revert: Causing failures on arm64 bots. See #33184 for more info
Change-Id: I72ba40047e4138767d95aaa68842893c3508c52f
Reviewed-on: https://go-review.googlesource.com/c/go/+/220638
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This CL implements Ticker.Reset method in time package.
Benchmark:
name time/op
TickerReset-12 6.41µs ±10%
TickerResetNaive-12 95.7µs ±12%
Fixes#33184
Change-Id: I12c651f81e452541bcbbc748b45f038aae1f8dae
Reviewed-on: https://go-review.googlesource.com/c/go/+/217362
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
It might break a program if it was depending on undocumented behavior.
Give a proper heads up.
Fixes#37308.
Change-Id: Id65bc70def1138d5506b694329c52250b417ec6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/220418
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Copied from go1.14.html, with changes redacted back to TODOs following
the model of CL 195058.
'relnote -html' does not report any changes at this time.
Updates #33738
Change-Id: I580232805ab7db35935f3e1ba03b720be4796a7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/220278
Reviewed-by: Alexander Rakoczy <alex@golang.org>
Run-TryBot: Alexander Rakoczy <alex@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Given that it's a package that did not exist before, was a proposal
in issue #28322, got accepted and implemented for 1.14, it seems to
be more than a minor change to the library. Highlight it accordingly.
Also specify the results are 64-bit integers, as done in CL 219340.
Updates #36878
Updates #28322
Change-Id: Idefe63d4c47a02cdcf8be8ab08c40cdb94ff2098
Reviewed-on: https://go-review.googlesource.com/c/go/+/219877
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Toshihiro Shiino <shiino.toshihiro@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
These were left out of CL 216759 because they are trivial, but I was
advised to be thorough.
Updates #36878
Change-Id: Id4fd3a84866a82265e3f89abfdad6e3d231b507c
Reviewed-on: https://go-review.googlesource.com/c/go/+/218918
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Moved /doc/modules.md from GOROOT to x/website. The corresponding
change in x/website is CL 218239. See explanation there.
Updates #33637
Change-Id: I329935624e6e264873bc68b6487405a63d3e7030
Reviewed-on: https://go-review.googlesource.com/c/go/+/218240
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
"Minor changes to the library" are basically arranged in alphabetical
order, but there are some mistakes so we will correct them.
Updates #36878
Change-Id: I8498563b739eff9f1b0a76ead3cf290191e0ce36
Reviewed-on: https://go-review.googlesource.com/c/go/+/218638
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
For convenience, TempFile in io/ioutil now has a link to the document.
Updates #36878
Change-Id: I5c22f57c886badd8ca423e34527c4b4bb029847b
Reviewed-on: https://go-review.googlesource.com/c/go/+/218637
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Unlike the others, the dt tag of reflect is not next to the dl tag.
The dd's closing tags may or may not have been omitted. They were unified without omission.
Updates #36878
Change-Id: I4e24f93fe8763ae8a1e4392db72e0b4818884f44
Reviewed-on: https://go-review.googlesource.com/c/go/+/217701
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
HTML pages served by the website have the option to opt-in to template
processing, by including "Template: true" in the page metadata.
This functionality is documented at
403f1254bd/godoc/template.go (L5-L30).
Historically, the Go 1 release notes have used template processing
to a great extent, but release notes for all subsequent major Go
releases have not.
Since this feature is generally not used and not very well known,
it tends to do more harm than good by making it possible for errors
in the template to prevent the release notes from showing up at all.
Disable this feature for Go 1.14 release notes and onwards.
We can consider enabling it when there's a stronger need for it.
Fixes#37072
Updates #37070
Change-Id: If93553d52df12544b46c4edcf3aa5eddc2a155ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/218058
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This caused 35 test failures in Google internal code,
so it's worth mentioning in the release notes.
Updates #31810
Updates #36878Fixes#37066
Change-Id: I2faa6bce4c7d735107eceaef7d95223844846454
Reviewed-on: https://go-review.googlesource.com/c/go/+/217978
Reviewed-by: Rob Pike <r@golang.org>
Documents io/ioutil.TempDir's new ability to create
predictable prefixes and suffixes, derived from the argument
'pattern', separated by the last '*' in it.
References: CL 198488
Updates #36878
Change-Id: I92c52fcc7d480ce74746e99e6e85a04efb87294f
Reviewed-on: https://go-review.googlesource.com/c/go/+/217780
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Document that for Windows, net/http.ServeFile can now
correctly serve files >2GB after we fixed internal/poll.SendFile
to transmit files larger than the default Windows limit of 2GB.
References: CL 192518, CL 194218
Updates #36878
Change-Id: Ibefc8b2841bc0cee3a89884a680085f99d2b6928
Reviewed-on: https://go-review.googlesource.com/c/go/+/217779
Reviewed-by: Ian Lance Taylor <iant@golang.org>
In CL 199417, we updated “How to Write Go Code” to give a basic
introduction to modules and to include module-mode commands.
However, most new users will end up reading “Getting Started”
(doc/install.html) before “How to Write Go Code”, and we forgot to
update the handful of commands there for module mode.
Before this change, the “Test your installation” section also covered
quite a few operations beoyond merely testing the installation: it
included setting up a GOPATH, building a binary, and installing and
cleaning binaries. Those are valuable operations to learn, but they
arguably belong in “How to Write Go Code”, not “Test your
installation” — and having all that extra detail in the install
instructions may well discourage folks from further essential reading.
Rather than updating all of those operations here, I've removed them.
A companion CL will update “How to Write Go Code” to ensure that it
mentions GOPATH (as the location of the module cache and the default
install location for binaries) and 'go clean -i'.
Updates #37042
Change-Id: I157f21ccbe3896575fa1115dc821abf6c71ed15e
Reviewed-on: https://go-review.googlesource.com/c/go/+/217840
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tyler Bui-Palsulich <tbp@google.com>
These 3 release notes have had an element ID collision because both
the runtime changes and changes to the package "runtime" used the
same ID. Fix it by using a "pkg-" prefix for the runtime package.
Move the "runtime-again" ID from CL 129635 to a nearby <dt> element
so that existing links to https://golang.org/doc/go1.11#runtime-again
don't break.
Fixes#37036
Updates #36878
Change-Id: Ib68d93acfac802fd84c0a57485937e45dea2064a
Reviewed-on: https://go-review.googlesource.com/c/go/+/217797
Reviewed-by: Toshihiro Shiino <shiino.toshihiro@gmail.com>
Reviewed-by: Agniva De Sarker <agniva.quicksilver@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Previously, the release notes broke up the sentences that modules
is now ready for production use and where to file issues for
migration problems into separate paragraphs. This made it look like
the migration paragraph was about upgrading to 1.14, not to modules,
and made the reading a bit confusing. Now the entire idea is in one
paragraph.
Change-Id: I10bddfb8aba5f5909ac6842f25e3e97d505835e6
Reviewed-on: https://go-review.googlesource.com/c/go/+/217720
Run-TryBot: Katie Hockman <katie@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
