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GlusterFS dynamic provisioner and deleter interface based on StorageClass claims

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Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
This commit is contained in:
Humble Chirammal
2016-08-19 20:55:39 +05:30
parent 0bef4243cd
commit 836ac6e403
30 changed files with 3479 additions and 8 deletions
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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test

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language: go
go:
- 1.1
- 1.2
- tip
install:
- go get github.com/stretchr/testify
script:
- go test
- go test -tags 'prod'

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lpabon@redhat.com

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[![Build Status](https://travis-ci.org/lpabon/godbc.svg?branch=master)](https://travis-ci.org/lpabon/godbc)
# godbc
Design by contract for Go
# Installation
To install godbc, use `go get`:
go get github.com/lpabon/godbc
Import the `godbc` package into your code using this template:
import (
"github.com/lpabon/godbc"
)
# Documentation
Documentation is available at https://godoc.org/github.com/lpabon/godbc

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//+build !prod
//
// Copyright (c) 2014 The godbc Authors
//
// 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
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// 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.
// Design-by-Contract for Go
//
// Design by Contract is a programming methodology
// which binds the caller and the function called to a
// contract. The contract is represented using Hoare Triple:
// {P} C {Q}
// where {P} is the precondition before executing command C,
// and {Q} is the postcondition.
//
// See Also
//
// * http://en.wikipedia.org/wiki/Design_by_contract
// * http://en.wikipedia.org/wiki/Hoare_logic
// * http://dlang.org/dbc.html
//
// Usage
//
// Godbc is enabled by default, but can be disabled for production
// builds by using the tag 'prod' in builds and tests as follows:
// go build -tags 'prod'
// or
// go test -tags 'prod'
//
package godbc
import (
"errors"
"fmt"
"runtime"
)
// InvariantSimpleTester is an interface which provides a receiver to
// test the object
type InvariantSimpleTester interface {
Invariant() bool
}
// InvariantTester is an interface which provides not only an Invariant(),
// but also a receiver to print the structure
type InvariantTester interface {
InvariantSimpleTester
String() string
}
// dbc_panic prints to the screen information of the failure followed
// by a call to panic()
func dbc_panic(dbc_func_name string, b bool, message ...interface{}) {
if !b {
// Get caller information which is the caller
// of the caller of this function
pc, file, line, _ := runtime.Caller(2)
caller_func_info := runtime.FuncForPC(pc)
error_string := fmt.Sprintf("%s:\n\r\tfunc (%s) 0x%x\n\r\tFile %s:%d",
dbc_func_name,
caller_func_info.Name(),
pc,
file,
line)
if len(message) > 0 {
error_string += fmt.Sprintf("\n\r\tInfo: %+v", message)
}
err := errors.New(error_string)
// Finally panic
panic(err)
}
}
// Require checks that the preconditions are satisfied before
// executing the function
//
// Example Code
//
// func Divide(a, b int) int {
// godbc.Require(b != 0)
// return a/b
// }
//
func Require(b bool, message ...interface{}) {
dbc_panic("REQUIRE", b, message...)
}
// Ensure checks the postconditions are satisfied before returning
// to the caller.
//
// Example Code
//
// type Data struct {
// a int
// }
//
// func (*d Data) Set(a int) {
// d.a = a
// godbc.Ensure(d.a == a)
// }
//
func Ensure(b bool, message ...interface{}) {
dbc_panic("ENSURE", b, message...)
}
// Check provides a simple assert
func Check(b bool, message ...interface{}) {
dbc_panic("CHECK", b, message...)
}
// InvariantSimple calls the objects Invariant() receiver to test
// the object for correctness.
//
// The caller object must provide an object that supports the
// interface InvariantSimpleTester and does not need to provide
// a String() receiver
func InvariantSimple(obj InvariantSimpleTester, message ...interface{}) {
dbc_panic("INVARIANT", obj.Invariant(), message...)
}
// Invariant calls the objects Invariant() receiver to test
// the object for correctness.
//
// The caller object must provide an object that supports the
// interface InvariantTester
//
// To see an example, please take a look at the godbc_test.go
func Invariant(obj InvariantTester, message ...interface{}) {
m := append(message, obj)
dbc_panic("INVARIANT", obj.Invariant(), m)
}

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//+build prod
//
// Copyright (c) 2014 The godbc Authors
//
// 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
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// 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.
package godbc
type InvariantSimpleTester interface {
Invariant() bool
}
type InvariantTester interface {
InvariantSimpleTester
String() string
}
func Require(b bool, message ...interface{}) {
}
func Ensure(b bool, message ...interface{}) {
}
func Check(b bool, message ...interface{}) {
}
func InvariantSimple(obj InvariantSimpleTester, message ...interface{}) {
}
func Invariant(obj InvariantTester, message ...interface{}) {
}