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Vendoring with Glide and delete function handler

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Alex Ellis
2017-04-26 19:13:42 +01:00
parent 1eaf13c6c8
commit 78af82021f
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# Contributing to go-units
Want to hack on go-units? Awesome! Here are instructions to get you started.
go-units is a part of the [Docker](https://www.docker.com) project, and follows
the same rules and principles. If you're already familiar with the way
Docker does things, you'll feel right at home.
Otherwise, go read Docker's
[contributions guidelines](https://github.com/docker/docker/blob/master/CONTRIBUTING.md),
[issue triaging](https://github.com/docker/docker/blob/master/project/ISSUE-TRIAGE.md),
[review process](https://github.com/docker/docker/blob/master/project/REVIEWING.md) and
[branches and tags](https://github.com/docker/docker/blob/master/project/BRANCHES-AND-TAGS.md).
### Sign your work
The sign-off is a simple line at the end of the explanation for the patch. Your
signature certifies that you wrote the patch or otherwise have the right to pass
it on as an open-source patch. The rules are pretty simple: if you can certify
the below (from [developercertificate.org](http://developercertificate.org/)):
```
Developer Certificate of Origin
Version 1.1
Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
660 York Street, Suite 102,
San Francisco, CA 94110 USA
Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.
Developer's Certificate of Origin 1.1
By making a contribution to this project, I certify that:
(a) The contribution was created in whole or in part by me and I
have the right to submit it under the open source license
indicated in the file; or
(b) The contribution is based upon previous work that, to the best
of my knowledge, is covered under an appropriate open source
license and I have the right under that license to submit that
work with modifications, whether created in whole or in part
by me, under the same open source license (unless I am
permitted to submit under a different license), as indicated
in the file; or
(c) The contribution was provided directly to me by some other
person who certified (a), (b) or (c) and I have not modified
it.
(d) I understand and agree that this project and the contribution
are public and that a record of the contribution (including all
personal information I submit with it, including my sign-off) is
maintained indefinitely and may be redistributed consistent with
this project or the open source license(s) involved.
```
Then you just add a line to every git commit message:
Signed-off-by: Joe Smith <joe.smith@email.com>
Use your real name (sorry, no pseudonyms or anonymous contributions.)
If you set your `user.name` and `user.email` git configs, you can sign your
commit automatically with `git commit -s`.

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Apache License
Version 2.0, January 2004
https://www.apache.org/licenses/
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5. Submission of Contributions. Unless You explicitly state otherwise,
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Notwithstanding the above, nothing herein shall supersede or modify
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6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
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7. Disclaimer of Warranty. Unless required by applicable law or
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
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END OF TERMS AND CONDITIONS
Copyright 2015 Docker, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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# go-connections maintainers file
#
# This file describes who runs the docker/go-connections project and how.
# This is a living document - if you see something out of date or missing, speak up!
#
# It is structured to be consumable by both humans and programs.
# To extract its contents programmatically, use any TOML-compliant parser.
#
# This file is compiled into the MAINTAINERS file in docker/opensource.
#
[Org]
[Org."Core maintainers"]
people = [
"calavera",
]
[people]
# A reference list of all people associated with the project.
# All other sections should refer to people by their canonical key
# in the people section.
# ADD YOURSELF HERE IN ALPHABETICAL ORDER
[people.calavera]
Name = "David Calavera"
Email = "david.calavera@gmail.com"
GitHub = "calavera"

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[![GoDoc](https://godoc.org/github.com/docker/go-units?status.svg)](https://godoc.org/github.com/docker/go-units)
# Introduction
go-units is a library to transform human friendly measurements into machine friendly values.
## Usage
See the [docs in godoc](https://godoc.org/github.com/docker/go-units) for examples and documentation.
## Copyright and license
Copyright © 2015 Docker, Inc.
go-units is licensed under the Apache License, Version 2.0.
See [LICENSE](LICENSE) for the full text of the license.

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dependencies:
post:
# install golint
- go get github.com/golang/lint/golint
test:
pre:
# run analysis before tests
- go vet ./...
- test -z "$(golint ./... | tee /dev/stderr)"
- test -z "$(gofmt -s -l . | tee /dev/stderr)"

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// Package units provides helper function to parse and print size and time units
// in human-readable format.
package units
import (
"fmt"
"time"
)
// HumanDuration returns a human-readable approximation of a duration
// (eg. "About a minute", "4 hours ago", etc.).
func HumanDuration(d time.Duration) string {
if seconds := int(d.Seconds()); seconds < 1 {
return "Less than a second"
} else if seconds == 1 {
return "1 second"
} else if seconds < 60 {
return fmt.Sprintf("%d seconds", seconds)
} else if minutes := int(d.Minutes()); minutes == 1 {
return "About a minute"
} else if minutes < 46 {
return fmt.Sprintf("%d minutes", minutes)
} else if hours := int(d.Hours() + 0.5); hours == 1 {
return "About an hour"
} else if hours < 48 {
return fmt.Sprintf("%d hours", hours)
} else if hours < 24*7*2 {
return fmt.Sprintf("%d days", hours/24)
} else if hours < 24*30*2 {
return fmt.Sprintf("%d weeks", hours/24/7)
} else if hours < 24*365*2 {
return fmt.Sprintf("%d months", hours/24/30)
}
return fmt.Sprintf("%d years", int(d.Hours())/24/365)
}

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package units
import (
"fmt"
"testing"
"time"
)
func ExampleHumanDuration() {
fmt.Println(HumanDuration(450 * time.Millisecond))
fmt.Println(HumanDuration(47 * time.Second))
fmt.Println(HumanDuration(1 * time.Minute))
fmt.Println(HumanDuration(3 * time.Minute))
fmt.Println(HumanDuration(35 * time.Minute))
fmt.Println(HumanDuration(35*time.Minute + 40*time.Second))
fmt.Println(HumanDuration(1 * time.Hour))
fmt.Println(HumanDuration(1*time.Hour + 45*time.Minute))
fmt.Println(HumanDuration(3 * time.Hour))
fmt.Println(HumanDuration(3*time.Hour + 59*time.Minute))
fmt.Println(HumanDuration(3*time.Hour + 60*time.Minute))
fmt.Println(HumanDuration(24 * time.Hour))
fmt.Println(HumanDuration(24*time.Hour + 12*time.Hour))
fmt.Println(HumanDuration(2 * 24 * time.Hour))
fmt.Println(HumanDuration(7 * 24 * time.Hour))
fmt.Println(HumanDuration(13*24*time.Hour + 5*time.Hour))
fmt.Println(HumanDuration(2 * 7 * 24 * time.Hour))
fmt.Println(HumanDuration(2*7*24*time.Hour + 4*24*time.Hour))
fmt.Println(HumanDuration(3 * 7 * 24 * time.Hour))
fmt.Println(HumanDuration(4 * 7 * 24 * time.Hour))
fmt.Println(HumanDuration(4*7*24*time.Hour + 3*24*time.Hour))
fmt.Println(HumanDuration(1 * 30 * 24 * time.Hour))
fmt.Println(HumanDuration(1*30*24*time.Hour + 2*7*24*time.Hour))
fmt.Println(HumanDuration(2 * 30 * 24 * time.Hour))
fmt.Println(HumanDuration(3*30*24*time.Hour + 1*7*24*time.Hour))
fmt.Println(HumanDuration(5*30*24*time.Hour + 2*7*24*time.Hour))
fmt.Println(HumanDuration(13 * 30 * 24 * time.Hour))
fmt.Println(HumanDuration(23 * 30 * 24 * time.Hour))
fmt.Println(HumanDuration(24 * 30 * 24 * time.Hour))
fmt.Println(HumanDuration(24*30*24*time.Hour + 2*7*24*time.Hour))
fmt.Println(HumanDuration(3*365*24*time.Hour + 2*30*24*time.Hour))
}
func TestHumanDuration(t *testing.T) {
// Useful duration abstractions
day := 24 * time.Hour
week := 7 * day
month := 30 * day
year := 365 * day
assertEquals(t, "Less than a second", HumanDuration(450*time.Millisecond))
assertEquals(t, "1 second", HumanDuration(1*time.Second))
assertEquals(t, "45 seconds", HumanDuration(45*time.Second))
assertEquals(t, "46 seconds", HumanDuration(46*time.Second))
assertEquals(t, "59 seconds", HumanDuration(59*time.Second))
assertEquals(t, "About a minute", HumanDuration(60*time.Second))
assertEquals(t, "About a minute", HumanDuration(1*time.Minute))
assertEquals(t, "3 minutes", HumanDuration(3*time.Minute))
assertEquals(t, "35 minutes", HumanDuration(35*time.Minute))
assertEquals(t, "35 minutes", HumanDuration(35*time.Minute+40*time.Second))
assertEquals(t, "45 minutes", HumanDuration(45*time.Minute))
assertEquals(t, "45 minutes", HumanDuration(45*time.Minute+40*time.Second))
assertEquals(t, "About an hour", HumanDuration(46*time.Minute))
assertEquals(t, "About an hour", HumanDuration(59*time.Minute))
assertEquals(t, "About an hour", HumanDuration(1*time.Hour))
assertEquals(t, "About an hour", HumanDuration(1*time.Hour+29*time.Minute))
assertEquals(t, "2 hours", HumanDuration(1*time.Hour+31*time.Minute))
assertEquals(t, "2 hours", HumanDuration(1*time.Hour+59*time.Minute))
assertEquals(t, "3 hours", HumanDuration(3*time.Hour))
assertEquals(t, "3 hours", HumanDuration(3*time.Hour+29*time.Minute))
assertEquals(t, "4 hours", HumanDuration(3*time.Hour+31*time.Minute))
assertEquals(t, "4 hours", HumanDuration(3*time.Hour+59*time.Minute))
assertEquals(t, "4 hours", HumanDuration(3*time.Hour+60*time.Minute))
assertEquals(t, "24 hours", HumanDuration(24*time.Hour))
assertEquals(t, "36 hours", HumanDuration(1*day+12*time.Hour))
assertEquals(t, "2 days", HumanDuration(2*day))
assertEquals(t, "7 days", HumanDuration(7*day))
assertEquals(t, "13 days", HumanDuration(13*day+5*time.Hour))
assertEquals(t, "2 weeks", HumanDuration(2*week))
assertEquals(t, "2 weeks", HumanDuration(2*week+4*day))
assertEquals(t, "3 weeks", HumanDuration(3*week))
assertEquals(t, "4 weeks", HumanDuration(4*week))
assertEquals(t, "4 weeks", HumanDuration(4*week+3*day))
assertEquals(t, "4 weeks", HumanDuration(1*month))
assertEquals(t, "6 weeks", HumanDuration(1*month+2*week))
assertEquals(t, "2 months", HumanDuration(2*month))
assertEquals(t, "2 months", HumanDuration(2*month+2*week))
assertEquals(t, "3 months", HumanDuration(3*month))
assertEquals(t, "3 months", HumanDuration(3*month+1*week))
assertEquals(t, "5 months", HumanDuration(5*month+2*week))
assertEquals(t, "13 months", HumanDuration(13*month))
assertEquals(t, "23 months", HumanDuration(23*month))
assertEquals(t, "24 months", HumanDuration(24*month))
assertEquals(t, "2 years", HumanDuration(24*month+2*week))
assertEquals(t, "3 years", HumanDuration(3*year+2*month))
}

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package units
import (
"fmt"
"regexp"
"strconv"
"strings"
)
// See: http://en.wikipedia.org/wiki/Binary_prefix
const (
// Decimal
KB = 1000
MB = 1000 * KB
GB = 1000 * MB
TB = 1000 * GB
PB = 1000 * TB
// Binary
KiB = 1024
MiB = 1024 * KiB
GiB = 1024 * MiB
TiB = 1024 * GiB
PiB = 1024 * TiB
)
type unitMap map[string]int64
var (
decimalMap = unitMap{"k": KB, "m": MB, "g": GB, "t": TB, "p": PB}
binaryMap = unitMap{"k": KiB, "m": MiB, "g": GiB, "t": TiB, "p": PiB}
sizeRegex = regexp.MustCompile(`^(\d+(\.\d+)*) ?([kKmMgGtTpP])?[bB]?$`)
)
var decimapAbbrs = []string{"B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"}
var binaryAbbrs = []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"}
func getSizeAndUnit(size float64, base float64, _map []string) (float64, string) {
i := 0
unitsLimit := len(_map) - 1
for size >= base && i < unitsLimit {
size = size / base
i++
}
return size, _map[i]
}
// CustomSize returns a human-readable approximation of a size
// using custom format.
func CustomSize(format string, size float64, base float64, _map []string) string {
size, unit := getSizeAndUnit(size, base, _map)
return fmt.Sprintf(format, size, unit)
}
// HumanSizeWithPrecision allows the size to be in any precision,
// instead of 4 digit precision used in units.HumanSize.
func HumanSizeWithPrecision(size float64, precision int) string {
size, unit := getSizeAndUnit(size, 1000.0, decimapAbbrs)
return fmt.Sprintf("%.*g%s", precision, size, unit)
}
// HumanSize returns a human-readable approximation of a size
// capped at 4 valid numbers (eg. "2.746 MB", "796 KB").
func HumanSize(size float64) string {
return HumanSizeWithPrecision(size, 4)
}
// BytesSize returns a human-readable size in bytes, kibibytes,
// mebibytes, gibibytes, or tebibytes (eg. "44kiB", "17MiB").
func BytesSize(size float64) string {
return CustomSize("%.4g%s", size, 1024.0, binaryAbbrs)
}
// FromHumanSize returns an integer from a human-readable specification of a
// size using SI standard (eg. "44kB", "17MB").
func FromHumanSize(size string) (int64, error) {
return parseSize(size, decimalMap)
}
// RAMInBytes parses a human-readable string representing an amount of RAM
// in bytes, kibibytes, mebibytes, gibibytes, or tebibytes and
// returns the number of bytes, or -1 if the string is unparseable.
// Units are case-insensitive, and the 'b' suffix is optional.
func RAMInBytes(size string) (int64, error) {
return parseSize(size, binaryMap)
}
// Parses the human-readable size string into the amount it represents.
func parseSize(sizeStr string, uMap unitMap) (int64, error) {
matches := sizeRegex.FindStringSubmatch(sizeStr)
if len(matches) != 4 {
return -1, fmt.Errorf("invalid size: '%s'", sizeStr)
}
size, err := strconv.ParseFloat(matches[1], 64)
if err != nil {
return -1, err
}
unitPrefix := strings.ToLower(matches[3])
if mul, ok := uMap[unitPrefix]; ok {
size *= float64(mul)
}
return int64(size), nil
}

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package units
import (
"fmt"
"reflect"
"runtime"
"strings"
"testing"
)
func ExampleBytesSize() {
fmt.Println(BytesSize(1024))
fmt.Println(BytesSize(1024 * 1024))
fmt.Println(BytesSize(1048576))
fmt.Println(BytesSize(2 * MiB))
fmt.Println(BytesSize(3.42 * GiB))
fmt.Println(BytesSize(5.372 * TiB))
fmt.Println(BytesSize(2.22 * PiB))
}
func ExampleHumanSize() {
fmt.Println(HumanSize(1000))
fmt.Println(HumanSize(1024))
fmt.Println(HumanSize(1000000))
fmt.Println(HumanSize(1048576))
fmt.Println(HumanSize(2 * MB))
fmt.Println(HumanSize(float64(3.42 * GB)))
fmt.Println(HumanSize(float64(5.372 * TB)))
fmt.Println(HumanSize(float64(2.22 * PB)))
}
func ExampleFromHumanSize() {
fmt.Println(FromHumanSize("32"))
fmt.Println(FromHumanSize("32b"))
fmt.Println(FromHumanSize("32B"))
fmt.Println(FromHumanSize("32k"))
fmt.Println(FromHumanSize("32K"))
fmt.Println(FromHumanSize("32kb"))
fmt.Println(FromHumanSize("32Kb"))
fmt.Println(FromHumanSize("32Mb"))
fmt.Println(FromHumanSize("32Gb"))
fmt.Println(FromHumanSize("32Tb"))
fmt.Println(FromHumanSize("32Pb"))
}
func ExampleRAMInBytes() {
fmt.Println(RAMInBytes("32"))
fmt.Println(RAMInBytes("32b"))
fmt.Println(RAMInBytes("32B"))
fmt.Println(RAMInBytes("32k"))
fmt.Println(RAMInBytes("32K"))
fmt.Println(RAMInBytes("32kb"))
fmt.Println(RAMInBytes("32Kb"))
fmt.Println(RAMInBytes("32Mb"))
fmt.Println(RAMInBytes("32Gb"))
fmt.Println(RAMInBytes("32Tb"))
fmt.Println(RAMInBytes("32Pb"))
fmt.Println(RAMInBytes("32PB"))
fmt.Println(RAMInBytes("32P"))
}
func TestBytesSize(t *testing.T) {
assertEquals(t, "1KiB", BytesSize(1024))
assertEquals(t, "1MiB", BytesSize(1024*1024))
assertEquals(t, "1MiB", BytesSize(1048576))
assertEquals(t, "2MiB", BytesSize(2*MiB))
assertEquals(t, "3.42GiB", BytesSize(3.42*GiB))
assertEquals(t, "5.372TiB", BytesSize(5.372*TiB))
assertEquals(t, "2.22PiB", BytesSize(2.22*PiB))
assertEquals(t, "1.049e+06YiB", BytesSize(KiB*KiB*KiB*KiB*KiB*PiB))
}
func TestHumanSize(t *testing.T) {
assertEquals(t, "1kB", HumanSize(1000))
assertEquals(t, "1.024kB", HumanSize(1024))
assertEquals(t, "1MB", HumanSize(1000000))
assertEquals(t, "1.049MB", HumanSize(1048576))
assertEquals(t, "2MB", HumanSize(2*MB))
assertEquals(t, "3.42GB", HumanSize(float64(3.42*GB)))
assertEquals(t, "5.372TB", HumanSize(float64(5.372*TB)))
assertEquals(t, "2.22PB", HumanSize(float64(2.22*PB)))
assertEquals(t, "1e+04YB", HumanSize(float64(10000000000000*PB)))
}
func TestFromHumanSize(t *testing.T) {
assertSuccessEquals(t, 32, FromHumanSize, "32")
assertSuccessEquals(t, 32, FromHumanSize, "32b")
assertSuccessEquals(t, 32, FromHumanSize, "32B")
assertSuccessEquals(t, 32*KB, FromHumanSize, "32k")
assertSuccessEquals(t, 32*KB, FromHumanSize, "32K")
assertSuccessEquals(t, 32*KB, FromHumanSize, "32kb")
assertSuccessEquals(t, 32*KB, FromHumanSize, "32Kb")
assertSuccessEquals(t, 32*MB, FromHumanSize, "32Mb")
assertSuccessEquals(t, 32*GB, FromHumanSize, "32Gb")
assertSuccessEquals(t, 32*TB, FromHumanSize, "32Tb")
assertSuccessEquals(t, 32*PB, FromHumanSize, "32Pb")
assertSuccessEquals(t, 32.5*KB, FromHumanSize, "32.5kB")
assertSuccessEquals(t, 32.5*KB, FromHumanSize, "32.5 kB")
assertSuccessEquals(t, 32, FromHumanSize, "32.5 B")
assertError(t, FromHumanSize, "")
assertError(t, FromHumanSize, "hello")
assertError(t, FromHumanSize, "-32")
assertError(t, FromHumanSize, ".3kB")
assertError(t, FromHumanSize, " 32 ")
assertError(t, FromHumanSize, "32m b")
assertError(t, FromHumanSize, "32bm")
}
func TestRAMInBytes(t *testing.T) {
assertSuccessEquals(t, 32, RAMInBytes, "32")
assertSuccessEquals(t, 32, RAMInBytes, "32b")
assertSuccessEquals(t, 32, RAMInBytes, "32B")
assertSuccessEquals(t, 32*KiB, RAMInBytes, "32k")
assertSuccessEquals(t, 32*KiB, RAMInBytes, "32K")
assertSuccessEquals(t, 32*KiB, RAMInBytes, "32kb")
assertSuccessEquals(t, 32*KiB, RAMInBytes, "32Kb")
assertSuccessEquals(t, 32*MiB, RAMInBytes, "32Mb")
assertSuccessEquals(t, 32*GiB, RAMInBytes, "32Gb")
assertSuccessEquals(t, 32*TiB, RAMInBytes, "32Tb")
assertSuccessEquals(t, 32*PiB, RAMInBytes, "32Pb")
assertSuccessEquals(t, 32*PiB, RAMInBytes, "32PB")
assertSuccessEquals(t, 32*PiB, RAMInBytes, "32P")
assertSuccessEquals(t, 32, RAMInBytes, "32.3")
tmp := 32.3 * MiB
assertSuccessEquals(t, int64(tmp), RAMInBytes, "32.3 mb")
assertError(t, RAMInBytes, "")
assertError(t, RAMInBytes, "hello")
assertError(t, RAMInBytes, "-32")
assertError(t, RAMInBytes, " 32 ")
assertError(t, RAMInBytes, "32m b")
assertError(t, RAMInBytes, "32bm")
}
func assertEquals(t *testing.T, expected, actual interface{}) {
if expected != actual {
t.Errorf("Expected '%v' but got '%v'", expected, actual)
}
}
// func that maps to the parse function signatures as testing abstraction
type parseFn func(string) (int64, error)
// Define 'String()' for pretty-print
func (fn parseFn) String() string {
fnName := runtime.FuncForPC(reflect.ValueOf(fn).Pointer()).Name()
return fnName[strings.LastIndex(fnName, ".")+1:]
}
func assertSuccessEquals(t *testing.T, expected int64, fn parseFn, arg string) {
res, err := fn(arg)
if err != nil || res != expected {
t.Errorf("%s(\"%s\") -> expected '%d' but got '%d' with error '%v'", fn, arg, expected, res, err)
}
}
func assertError(t *testing.T, fn parseFn, arg string) {
res, err := fn(arg)
if err == nil && res != -1 {
t.Errorf("%s(\"%s\") -> expected error but got '%d'", fn, arg, res)
}
}

118
gateway/vendor/github.com/docker/go-units/ulimit.go generated vendored Normal file
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@ -0,0 +1,118 @@
package units
import (
"fmt"
"strconv"
"strings"
)
// Ulimit is a human friendly version of Rlimit.
type Ulimit struct {
Name string
Hard int64
Soft int64
}
// Rlimit specifies the resource limits, such as max open files.
type Rlimit struct {
Type int `json:"type,omitempty"`
Hard uint64 `json:"hard,omitempty"`
Soft uint64 `json:"soft,omitempty"`
}
const (
// magic numbers for making the syscall
// some of these are defined in the syscall package, but not all.
// Also since Windows client doesn't get access to the syscall package, need to
// define these here
rlimitAs = 9
rlimitCore = 4
rlimitCPU = 0
rlimitData = 2
rlimitFsize = 1
rlimitLocks = 10
rlimitMemlock = 8
rlimitMsgqueue = 12
rlimitNice = 13
rlimitNofile = 7
rlimitNproc = 6
rlimitRss = 5
rlimitRtprio = 14
rlimitRttime = 15
rlimitSigpending = 11
rlimitStack = 3
)
var ulimitNameMapping = map[string]int{
//"as": rlimitAs, // Disabled since this doesn't seem usable with the way Docker inits a container.
"core": rlimitCore,
"cpu": rlimitCPU,
"data": rlimitData,
"fsize": rlimitFsize,
"locks": rlimitLocks,
"memlock": rlimitMemlock,
"msgqueue": rlimitMsgqueue,
"nice": rlimitNice,
"nofile": rlimitNofile,
"nproc": rlimitNproc,
"rss": rlimitRss,
"rtprio": rlimitRtprio,
"rttime": rlimitRttime,
"sigpending": rlimitSigpending,
"stack": rlimitStack,
}
// ParseUlimit parses and returns a Ulimit from the specified string.
func ParseUlimit(val string) (*Ulimit, error) {
parts := strings.SplitN(val, "=", 2)
if len(parts) != 2 {
return nil, fmt.Errorf("invalid ulimit argument: %s", val)
}
if _, exists := ulimitNameMapping[parts[0]]; !exists {
return nil, fmt.Errorf("invalid ulimit type: %s", parts[0])
}
var (
soft int64
hard = &soft // default to soft in case no hard was set
temp int64
err error
)
switch limitVals := strings.Split(parts[1], ":"); len(limitVals) {
case 2:
temp, err = strconv.ParseInt(limitVals[1], 10, 64)
if err != nil {
return nil, err
}
hard = &temp
fallthrough
case 1:
soft, err = strconv.ParseInt(limitVals[0], 10, 64)
if err != nil {
return nil, err
}
default:
return nil, fmt.Errorf("too many limit value arguments - %s, can only have up to two, `soft[:hard]`", parts[1])
}
if soft > *hard {
return nil, fmt.Errorf("ulimit soft limit must be less than or equal to hard limit: %d > %d", soft, *hard)
}
return &Ulimit{Name: parts[0], Soft: soft, Hard: *hard}, nil
}
// GetRlimit returns the RLimit corresponding to Ulimit.
func (u *Ulimit) GetRlimit() (*Rlimit, error) {
t, exists := ulimitNameMapping[u.Name]
if !exists {
return nil, fmt.Errorf("invalid ulimit name %s", u.Name)
}
return &Rlimit{Type: t, Soft: uint64(u.Soft), Hard: uint64(u.Hard)}, nil
}
func (u *Ulimit) String() string {
return fmt.Sprintf("%s=%d:%d", u.Name, u.Soft, u.Hard)
}

131
gateway/vendor/github.com/docker/go-units/ulimit_test.go generated vendored Normal file
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@ -0,0 +1,131 @@
package units
import (
"fmt"
"strconv"
"testing"
)
func ExampleParseUlimit() {
fmt.Println(ParseUlimit("nofile=512:1024"))
fmt.Println(ParseUlimit("nofile=1024"))
fmt.Println(ParseUlimit("cpu=2:4"))
fmt.Println(ParseUlimit("cpu=6"))
}
func TestParseUlimitValid(t *testing.T) {
u1 := &Ulimit{"nofile", 1024, 512}
if u2, _ := ParseUlimit("nofile=512:1024"); *u1 != *u2 {
t.Fatalf("expected %q, but got %q", u1, u2)
}
}
func TestParseUlimitInvalidLimitType(t *testing.T) {
if _, err := ParseUlimit("notarealtype=1024:1024"); err == nil {
t.Fatalf("expected error on invalid ulimit type")
}
}
func TestParseUlimitBadFormat(t *testing.T) {
if _, err := ParseUlimit("nofile:1024:1024"); err == nil {
t.Fatal("expected error on bad syntax")
}
if _, err := ParseUlimit("nofile"); err == nil {
t.Fatal("expected error on bad syntax")
}
if _, err := ParseUlimit("nofile="); err == nil {
t.Fatal("expected error on bad syntax")
}
if _, err := ParseUlimit("nofile=:"); err == nil {
t.Fatal("expected error on bad syntax")
}
if _, err := ParseUlimit("nofile=:1024"); err == nil {
t.Fatal("expected error on bad syntax")
}
}
func TestParseUlimitHardLessThanSoft(t *testing.T) {
if _, err := ParseUlimit("nofile=1024:1"); err == nil {
t.Fatal("expected error on hard limit less than soft limit")
}
}
func TestParseUlimitInvalidValueType(t *testing.T) {
if _, err := ParseUlimit("nofile=asdf"); err == nil {
t.Fatal("expected error on bad value type, but got no error")
} else if _, ok := err.(*strconv.NumError); !ok {
t.Fatalf("expected error on bad value type, but got `%s`", err)
}
if _, err := ParseUlimit("nofile=1024:asdf"); err == nil {
t.Fatal("expected error on bad value type, but got no error")
} else if _, ok := err.(*strconv.NumError); !ok {
t.Fatalf("expected error on bad value type, but got `%s`", err)
}
}
func TestParseUlimitTooManyValueArgs(t *testing.T) {
if _, err := ParseUlimit("nofile=1024:1:50"); err == nil {
t.Fatalf("expected error on more than two value arguments")
}
}
func TestUlimitStringOutput(t *testing.T) {
u := &Ulimit{"nofile", 1024, 512}
if s := u.String(); s != "nofile=512:1024" {
t.Fatal("expected String to return nofile=512:1024, but got", s)
}
}
func TestGetRlimit(t *testing.T) {
tt := []struct {
ulimit Ulimit
rlimit Rlimit
}{
{Ulimit{"core", 10, 12}, Rlimit{rlimitCore, 10, 12}},
{Ulimit{"cpu", 1, 10}, Rlimit{rlimitCPU, 1, 10}},
{Ulimit{"data", 5, 0}, Rlimit{rlimitData, 5, 0}},
{Ulimit{"fsize", 2, 2}, Rlimit{rlimitFsize, 2, 2}},
{Ulimit{"locks", 0, 0}, Rlimit{rlimitLocks, 0, 0}},
{Ulimit{"memlock", 10, 10}, Rlimit{rlimitMemlock, 10, 10}},
{Ulimit{"msgqueue", 9, 1}, Rlimit{rlimitMsgqueue, 9, 1}},
{Ulimit{"nice", 9, 9}, Rlimit{rlimitNice, 9, 9}},
{Ulimit{"nofile", 4, 100}, Rlimit{rlimitNofile, 4, 100}},
{Ulimit{"nproc", 5, 5}, Rlimit{rlimitNproc, 5, 5}},
{Ulimit{"rss", 0, 5}, Rlimit{rlimitRss, 0, 5}},
{Ulimit{"rtprio", 100, 65}, Rlimit{rlimitRtprio, 100, 65}},
{Ulimit{"rttime", 55, 102}, Rlimit{rlimitRttime, 55, 102}},
{Ulimit{"sigpending", 14, 20}, Rlimit{rlimitSigpending, 14, 20}},
{Ulimit{"stack", 1, 1}, Rlimit{rlimitStack, 1, 1}},
}
for _, te := range tt {
res, err := te.ulimit.GetRlimit()
if err != nil {
t.Errorf("expected not to fail: %s", err)
}
if res.Type != te.rlimit.Type {
t.Errorf("expected Type to be %d but got %d",
te.rlimit.Type, res.Type)
}
if res.Soft != te.rlimit.Soft {
t.Errorf("expected Soft to be %d but got %d",
te.rlimit.Soft, res.Soft)
}
if res.Hard != te.rlimit.Hard {
t.Errorf("expected Hard to be %d but got %d",
te.rlimit.Hard, res.Hard)
}
}
}
func TestGetRlimitBadUlimitName(t *testing.T) {
name := "bla"
uLimit := Ulimit{name, 0, 0}
if _, err := uLimit.GetRlimit(); err == nil {
t.Error("expected error on bad Ulimit name")
}
}