This change fixes time.LoadLocationFromTZData and time.Location.lookup logic if the given time is after the last transition and the extend string doesn't have the DST rule.
For #58682Fixes#59074
Change-Id: Ie34a6d658d14c2b33098b29ab83c041ef0d34266
GitHub-Last-Rev: f6681eb44c
GitHub-Pull-Request: golang/go#58684
Reviewed-on: https://go-review.googlesource.com/c/go/+/471020
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(cherry picked from commit 90dde5dec1)
Reviewed-on: https://go-review.googlesource.com/c/go/+/478657
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Heschi Kreinick <heschi@google.com>
zoneinfo_abbrs hasn't been updated since go 1.14, it's time to
regenerate it.
Fixes#58118.
Change-Id: Ic156ae607c46f1f5a9408b1fc0b56de6c14a4ed4
Reviewed-on: https://go-review.googlesource.com/c/go/+/463838
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(cherry picked from commit 007d8f4db1)
Reviewed-on: https://go-review.googlesource.com/c/go/+/466555
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The existing documentation for the time.Layout const states "Only these values
are recognized", but then doesn't include the numeric forms for month leading to
ambiguity and assumptions that may not be true. It's unclear, for example,
that space padding is only available for day of the month.
Finally I add tests to show the behaviors in specific scenarios.
Change-Id: I4e08a14834c17b6bdf3b6b47d39dafa8c1a138fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/418875
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Version 2022a was released on 2022-03-15 and we can start using it for
Go 1.19. Its release announcement was:
https://mm.icann.org/pipermail/tz-announce/2022-March/000070.html
For #22487.
Change-Id: Ie89b90927a251413e4f67c9e0ed3a67d4161529b
Reviewed-on: https://go-review.googlesource.com/c/go/+/409374
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The method Location.lookup returns the "start" and "end" times bracketing seconds when that zone is in effect.
This CL does these things:
1. Exported the "start" and "end" times as time.Time form
2. Keep the "Location" of the returned times be the same as underlying time
Fixes#50062.
Change-Id: I88888a100d0fc68f4984a85c75a85a83aa3e5d80
Reviewed-on: https://go-review.googlesource.com/c/go/+/405374
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Prompted by CL 403996.
Change-Id: I8b480a9d361863d4770c7c9a4437431424f26994
Reviewed-on: https://go-review.googlesource.com/c/go/+/404695
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When using windows some users got a weird error (File not found) when the timezone database is not found. It happens because some methods in the time package don't treat ERROR_PATH_NOT_FOUND and ENOTDIR. To solve it was added a conversion to ENOTENT error.
Fixes#50248
Change-Id: I11c84cf409e01eafb932aea43c7293c8218259b8
GitHub-Last-Rev: fe7fff90cb
GitHub-Pull-Request: golang/go#50906
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When we call time.Unix(s, ns), the internal representation is
s + 62135596800, where 62135596800 is the number of
seconds from Jan 1 1 to Jan 1 1970.
If quickcheck generates numbers too close to 2^63,
the addition can wraparound to make a very negative
internal 64-bit value. Wraparounds are not guarded
against, since they would not arise in any reasonable program,
so just avoid testing near them.
Fixes#52409.
Change-Id: Id466c8a34a49055ab26f2687a6b2b657cb64bed6
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[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]
Run the updated gofmt, which reformats doc comments,
on the main repository. Vendored files are excluded.
For #51082.
Change-Id: I7332f099b60f716295fb34719c98c04eb1a85407
Reviewed-on: https://go-review.googlesource.com/c/go/+/384268
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
A future change to gofmt will rewrite
// Doc comment.
//go:foo
to
// Doc comment.
//
//go:foo
Apply that change preemptively to all comments (not necessarily just doc comments).
For #51082.
Change-Id: Iffe0285418d1e79d34526af3520b415a12203ca9
Reviewed-on: https://go-review.googlesource.com/c/go/+/384260
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go/doc in all its forms applies this replacement when rendering
the comments. We are considering formatting doc comments,
including doing this replacement as part of the formatting.
Apply it to our source files ahead of time.
For #51082.
Change-Id: Ifcc1f5861abb57c5d14e7d8c2102dfb31b7a3a19
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A future change to gofmt will rewrite
// Doc comment.
//
func f()
to
// Doc comment.
func f()
Apply that change preemptively to all doc comments.
For #51082.
Change-Id: I4023e16cfb0729b64a8590f071cd92f17343081d
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A run of lines that are indented with any number of spaces or tabs
format as a <pre> block. This commit fixes various doc comments
that format badly according to that (standard) rule.
For example, consider:
// - List item.
// Second line.
// - Another item.
Because the - lines are unindented, this is actually two paragraphs
separated by a one-line <pre> block. This CL rewrites it to:
// - List item.
// Second line.
// - Another item.
Today, that will format as a single <pre> block.
In a future release, we hope to format it as a bulleted list.
Various other minor fixes as well, all in preparation for reformatting.
For #51082.
Change-Id: I95cf06040d4186830e571cd50148be3bf8daf189
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This fixes many (but not all) of the tests that currently fail
(due to a bogus path reported by runtime.GOROOT) when run with
'go test -trimpath std cmd'.
Updates #51461
Change-Id: Ia2cc05705529c4859e7928f32eeceed647f2e986
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When the test binary is built with the -trimpath flag,
runtime.GOROOT() is invalid, and must not be used to locate
GOROOT/lib/time/zoneinfo.zip. (We can use other sources instead.)
However, the test for the package expects zoneinfo.zip to definitely
exist. 'go test' runs the test binary in the directory containing its
source code — in this case GOROOT/src/time — so we can use that
information to find the zoneinfo.zip file when runtime.GOROOT isn't
available.
For #51483
Change-Id: I9de35252a988d146b5d746794323214d400e64e5
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For #48685Fixes#50806
Change-Id: Ie8be40e5794c0998538890a651ef8ec92cb72d3a
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This test is observed to be flaky on the plan9-arm builder.
Skip it on that platform until it can be diagnosed and fixed.
For #50470
Change-Id: If626af426d856c377e00ac5baaca52899456556e
Reviewed-on: https://go-review.googlesource.com/c/go/+/375934
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And then revert the bootstrap cmd directories and certain testdata.
And adjust tests as needed.
Not reverting the changes in std that are bootstrapped,
because some of those changes would appear in API docs,
and we want to use any consistently.
Instead, rewrite 'any' to 'interface{}' in cmd/dist for those directories
when preparing the bootstrap copy.
A few files changed as a result of running gofmt -w
not because of interface{} -> any but because they
hadn't been updated for the new //go:build lines.
Fixes#49884.
Change-Id: Ie8045cba995f65bd79c694ec77a1b3d1fe01bb09
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Doing this a little early in the release cycle as there have been some
changes in the handling of old timezones. They should continue to
work as expected, but more testing time may be useful.
For #22487
Change-Id: I3686fed79a052c46112445055044cff5842f2a45
Reviewed-on: https://go-review.googlesource.com/c/go/+/362874
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The old implement passed start - 1 or end in func lookup to adjust the offset.But if the time is close to the last zoneTrans, like the issue, testcase and comment, the "start" from lookup will be omega. It can't be adjusted correctly.
Fixes#49284
Change-Id: Ibaf82dc4db6d5dd3279796f003d2b19c38a26341
Reviewed-on: https://go-review.googlesource.com/c/go/+/360616
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Change-Id: I2668cdea64f75bee87d424730d404834d69362a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/357270
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Fixes#49315
Change-Id: I0887bad1059b25ae0749bfa1ed6ddccbecca7951
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When these packages are released as part of Go 1.18,
Go 1.16 will no longer be supported, so we can remove
the +build tags in these files.
Ran go fix -fix=buildtag std cmd and then reverted the bootstrapDirs
as defined in src/cmd/dist/buildtool.go, which need to continue
to build with Go 1.4 for now.
Also reverted src/vendor and src/cmd/vendor, which will need
to be updated in their own repos first.
Manual changes in runtime/pprof/mprof_test.go to adjust line numbers.
For #41184.
Change-Id: Ic0f93f7091295b6abc76ed5cd6e6746e1280861e
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ParseDuration should handle minimum int64 (-1<<63) nanosecond
since type Duration is alias of int64
name old time/op new time/op delta
ParseDuration 91.4ns ± 0% 86.4ns ± 1% -5.49% (p=0.000 n=9+8)
Fixes: #48629
Change-Id: I81b7035b25cefb4c1e5b7801c20f2d335e29358a
Reviewed-on: https://go-review.googlesource.com/c/go/+/352269
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TestTicker is sensitive to overloaded or slow systems, where a 20ms
ticker running for 10 ticks has a total run time out of the range
[110ms, 290ms]. To counter this flakiness, it tries five times to
get a successful result. This is insufficient--an overloaded test
machine can introduce more than 100ms of delay across the test.
Reduce the five attempts to two, but use a 1s ticker for 8 ticks
in the second attempt.
Updates #46474.
Updates #35692.
Change-Id: Ibd5187b00ccceeb981b652f2af9a1c3766357b78
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Add doc comment about the time/tzdata package to the time.LoadLocation
function. The time.LoadLocation function was changed in Go 1.15 to add an extra
source that it considers for the time zone database. That location is the
time/tzdata package. It is not easy to discover this behavior because the
documentation for the time package doesn't mention it in the discussion on the
time.LoadLocation function when discussing the different sources. It would be helpful to
describe all possible sources that time.LoadLocation considers when loading the
time zone database, and so I think it would be worthwhile to mention
time/tzdata.
Change-Id: I408fbe188bf9d4ba797e59ec17eb677136d6a9c2
GitHub-Last-Rev: 3dac204326
GitHub-Pull-Request: golang/go#48673
Reviewed-on: https://go-review.googlesource.com/c/go/+/352830
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CL 320252 reworked the time docs, but accidentally deleted the format __2
from the sentence describing the three-character day of year component.
Change-Id: I3f583733028657c2a677358a25e062ea81835ce8
GitHub-Last-Rev: 2fa9832419
GitHub-Pull-Request: golang/go#48387
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If the time is in 'LMT' and has fractional minute, then
`MarshalBinary()` and `UnmarshalBinary()` will encode/decode the time
in `timeBinaryVersionV2` in which the fractional minute is at
bit 15 and 16, and presented in seconds.
Fixes#39616
Change-Id: Ib762fb5fa26f54b1a8377a5dde0b994dd5a1236a
GitHub-Last-Rev: 455d7a2496
GitHub-Pull-Request: golang/go#40293
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When the adjustTimers function removed a timer it assumed it was
sufficient to continue the heap traversal at that position.
However, in some cases a timer will be moved to an earlier
position in the heap. If that timer is timerModifiedEarlier,
that can leave timerModifiedEarliest not correctly representing
the earlier such timer.
Fix the problem by restarting the heap traversal at the earliest
changed position.
Fixes#47762
Change-Id: I152bbe62793ee40a680baf49967bcb89b1f94764
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Change-Id: I519b8021fa79dccc5c0ee79134547491116fc4cc
GitHub-Last-Rev: 48869f5434
GitHub-Pull-Request: golang/go#48071
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This will spare anyone who hits it having to search for the workaround.
Change-Id: Iff0d449212f2675ac78e30ae5ffc8efb4d924088
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In CL 300996 that fixed issue #6189, we made Parse recognize
"," as a separator for fractional seconds.
However, we didn't modify Format to propagate the separator
verbatim from Parse. Without this change, we break prior
functionality that relied on a comma being used in Format.
Fixes#48037
Change-Id: I6565a25e8657ca3747a58b25acba58f27cdcddc0
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Pre-allocate the slice of buf with enough capacity
to avoid growslice calls.
benchmark old ns/op new ns/op delta
BenchmarkTimeString-4 493 409 -17.12%
BenchmarkTimeGoString-4 309 182 -41.30%
benchmark old allocs new allocs delta
BenchmarkTimeString-4 5 3 -40.00%
BenchmarkTimeGoString-4 4 1 -75.00%
benchmark old bytes new bytes delta
BenchmarkTimeString-4 152 128 -15.79%
BenchmarkTimeGoString-4 248 80 -67.74%
Change-Id: I64eabe2ab0b3d4a846453c2e8e548a831d720b8c
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In the time package, the ticker and timer both send
current time to channel C, so this PR update the comment
to understand them better.
Change-Id: I99846a40bf8ef780bf0062dd84cf721b3b892a1b
GitHub-Last-Rev: 535da54b8e
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Change-Id: I141d29bb4adc957de5de1f8ed8867980fd3c8386
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The current text is slightly inaccurate. Make it more correct.
Change-Id: Iebe0051b74649d13982d7eefe3697f9e69c9b75d
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This avoids a race when a new timerModifiedEarlier timer is created by
a different goroutine.
Fixes#47329
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Fixes#46883
Updates CL 267017
Change-Id: I15c307bfb0aaa2877a148d32527681f79df1a650
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Only methods that modify the time take pointer receivers;
IsDST does not modify it and therefore should not.
For #42102 and #46688.
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Trust: Russ Cox <rsc@golang.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
People continue to be confused by how these work. Address that by some
rejiggering.
Introduce a constant called Layout that both defines the time and
provides a reference point for Parse and Format to refer to. We can
then delete much redundancy, especially for Format's comments, but
Parse tightens a bit too.
Then change the way the concept of the layout string is introduced,
and provide a clearer catalog of what its elements are.
Fixes#38871
Change-Id: Ib967ae70c7d5798a97b865cdda1fda4daed8a99a
Reviewed-on: https://go-review.googlesource.com/c/go/+/320252
Trust: Rob Pike <r@golang.org>
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Reviewed-by: Russ Cox <rsc@golang.org>
Previously calling fmt.Sprintf("%#v", t) on a time.Time value would
yield a result like:
time.Time{wall:0x0, ext:63724924180, loc:(*time.Location)(nil)}
which does not compile when embedded in a Go program, and does not
tell you what value is represented at a glance.
This change adds a GoString method that returns much more legible
output:
"time.Date(2009, time.February, 5, 5, 0, 57, 12345600, time.UTC)"
which gives you more information about the time.Time and also can be
usefully embedded in a Go program without additional work.
Update Quote() to hex escape non-ASCII characters (copying logic
from strconv), which makes it safer to embed them in the output of
GoString().
Fixes#39034.
Change-Id: Ic985bafe4e556f64e82223c643f65143c9a45c3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/267017
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
Also sleep a bit each time it fails, in case the system is overloaded.
Fixes#37332
Change-Id: Iabf3d0a27b5834c1e2a87c826b6206146b4f62c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/313849
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Updates #45448
Change-Id: I2e79ae6b9cf43a481aa703578712619ea344e421
Reviewed-on: https://go-review.googlesource.com/c/go/+/310212
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Updates #45448
Change-Id: Ic096fe1c58c124fb8d84ee15c9446e7ed060b24f
Reviewed-on: https://go-review.googlesource.com/c/go/+/310032
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Michael Knyszek <mknyszek@google.com>
The lines with tzdata are quite long.
It is easier to just copy a file than to encode it as
a string literal when adding a new test case.
Change-Id: Ibcaf347c3101a0f05b094e582b3473c7c35b685a
Reviewed-on: https://go-review.googlesource.com/c/go/+/308998
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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