mirror of https://github.com/minio/minio.git
Anand Babu (AB) Periasamy
10 years ago
21 changed files with 1574 additions and 202 deletions
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1Dockerfile
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29globals.go
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15main.go
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67pkg/user/user.go
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6pkg/xl/config.go
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65runtime-checks.go
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4server-config.go
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354vendor/github.com/hashicorp/go-version/LICENSE
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65vendor/github.com/hashicorp/go-version/README.md
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156vendor/github.com/hashicorp/go-version/constraint.go
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103vendor/github.com/hashicorp/go-version/constraint_test.go
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251vendor/github.com/hashicorp/go-version/version.go
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17vendor/github.com/hashicorp/go-version/version_collection.go
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46vendor/github.com/hashicorp/go-version/version_collection_test.go
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208vendor/github.com/hashicorp/go-version/version_test.go
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21vendor/github.com/minio/go-homedir/LICENSE
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14vendor/github.com/minio/go-homedir/README.md
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132vendor/github.com/minio/go-homedir/homedir.go
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112vendor/github.com/minio/go-homedir/homedir_test.go
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15vendor/vendor.json
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95verify-runtime.go
@ -1,67 +0,0 @@ |
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/* |
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* Minio Cloud Storage, (C) 2015 Minio, Inc. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
|
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package user |
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import ( |
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"os" |
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"os/user" |
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"runtime" |
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"strconv" |
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) |
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|
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// Current is a portable implementation to determine the current user.
|
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// Golang's user.Current does not work reliably under docker or 32bit linux
|
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//
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// Two issues this code handles :-
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//
|
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// Docker Container - For static binaries NSS library will not be a part of the static binary hence user.Current() fails.
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// Linux Intel 32 bit - CGO is not enabled so it will not link with NSS library.
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//
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func Current() (*user.User, error) { |
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if os.Getenv("DOCKERIMAGE") == "1" { |
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wd, err := os.Getwd() |
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if err != nil { |
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return nil, err |
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} |
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return &user.User{Uid: "0", Gid: "0", Username: "root", Name: "root", HomeDir: wd}, nil |
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} |
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if runtime.GOARCH == "386" { |
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if runtime.GOOS == "linux" || runtime.GOOS == "darwin" { |
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return &user.User{ |
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Uid: strconv.Itoa(os.Getuid()), |
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Gid: strconv.Itoa(os.Getgid()), |
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Username: os.Getenv("USER"), |
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Name: os.Getenv("USER"), |
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HomeDir: os.Getenv("HOME"), |
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}, nil |
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} |
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} |
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user, e := user.Current() |
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if e != nil { |
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return nil, e |
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} |
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return user, nil |
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} |
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|
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// HomeDir - return current home directory.
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func HomeDir() (string, error) { |
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user, err := Current() |
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if err != nil { |
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return "", err |
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} |
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return user.HomeDir, nil |
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} |
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@ -0,0 +1,65 @@ |
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/* |
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* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
|
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package main |
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import ( |
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"fmt" |
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"io/ioutil" |
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"os" |
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"runtime" |
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"strings" |
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|
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"github.com/hashicorp/go-version" |
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) |
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|
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// isContainerized returns true if we are inside a containerized environment.
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func isContainerized() bool { |
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// Docker containers contain ".dockerinit" at its root path.
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if _, e := os.Stat("/.dockerinit"); os.IsNotExist(e) { |
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return true |
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} |
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|
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// Check if cgroup policies for init process contains docker string.
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if cgroupData, e := ioutil.ReadFile("/proc/1/cgroup"); e != nil { |
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if strings.Contains(string(cgroupData), "/docker-") { |
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return true |
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} |
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} |
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|
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/* Add checks for non-docker containers here. */ |
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return false |
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} |
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|
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// check if minimum Go version is met.
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func checkGoVersion() { |
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// Current version.
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curVersion, e := version.NewVersion(runtime.Version()[2:]) |
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if e != nil { |
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Fatalln("Unable to determine current go version.", e) |
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} |
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|
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// Prepare version constraint.
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constraints, e := version.NewConstraint(minGoVersion) |
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if e != nil { |
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Fatalln("Unable to check go version.") |
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} |
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|
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// Check for minimum version.
|
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if !constraints.Check(curVersion) { |
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Fatalln(fmt.Sprintf("Please recompile Minio with Golang version %s.", minGoVersion)) |
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} |
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} |
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@ -0,0 +1,354 @@ |
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Mozilla Public License, version 2.0 |
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|
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1. Definitions |
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|
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1.1. “Contributor” |
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|
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means each individual or legal entity that creates, contributes to the |
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creation of, or owns Covered Software. |
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|
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1.2. “Contributor Version” |
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|
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means the combination of the Contributions of others (if any) used by a |
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Contributor and that particular Contributor’s Contribution. |
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|
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1.3. “Contribution” |
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|
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means Covered Software of a particular Contributor. |
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|
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1.4. “Covered Software” |
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|
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means Source Code Form to which the initial Contributor has attached the |
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notice in Exhibit A, the Executable Form of such Source Code Form, and |
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Modifications of such Source Code Form, in each case including portions |
|||
thereof. |
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|
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1.5. “Incompatible With Secondary Licenses” |
|||
means |
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|
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a. that the initial Contributor has attached the notice described in |
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Exhibit B to the Covered Software; or |
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|
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b. that the Covered Software was made available under the terms of version |
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1.1 or earlier of the License, but not also under the terms of a |
|||
Secondary License. |
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|
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1.6. “Executable Form” |
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|
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means any form of the work other than Source Code Form. |
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|
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1.7. “Larger Work” |
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|
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means a work that combines Covered Software with other material, in a separate |
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file or files, that is not Covered Software. |
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|
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1.8. “License” |
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|
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means this document. |
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|
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1.9. “Licensable” |
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|
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means having the right to grant, to the maximum extent possible, whether at the |
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time of the initial grant or subsequently, any and all of the rights conveyed by |
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this License. |
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|
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1.10. “Modifications” |
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|
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means any of the following: |
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|
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a. any file in Source Code Form that results from an addition to, deletion |
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from, or modification of the contents of Covered Software; or |
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|
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b. any new file in Source Code Form that contains any Covered Software. |
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|
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1.11. “Patent Claims” of a Contributor |
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|
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means any patent claim(s), including without limitation, method, process, |
|||
and apparatus claims, in any patent Licensable by such Contributor that |
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would be infringed, but for the grant of the License, by the making, |
|||
using, selling, offering for sale, having made, import, or transfer of |
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either its Contributions or its Contributor Version. |
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|
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1.12. “Secondary License” |
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|
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means either the GNU General Public License, Version 2.0, the GNU Lesser |
|||
General Public License, Version 2.1, the GNU Affero General Public |
|||
License, Version 3.0, or any later versions of those licenses. |
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|
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1.13. “Source Code Form” |
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|
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means the form of the work preferred for making modifications. |
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|
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1.14. “You” (or “Your”) |
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|
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means an individual or a legal entity exercising rights under this |
|||
License. For legal entities, “You” includes any entity that controls, is |
|||
controlled by, or is under common control with You. For purposes of this |
|||
definition, “control” means (a) the power, direct or indirect, to cause |
|||
the direction or management of such entity, whether by contract or |
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otherwise, or (b) ownership of more than fifty percent (50%) of the |
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outstanding shares or beneficial ownership of such entity. |
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|
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|
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2. License Grants and Conditions |
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|
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2.1. Grants |
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|
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Each Contributor hereby grants You a world-wide, royalty-free, |
|||
non-exclusive license: |
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|
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a. under intellectual property rights (other than patent or trademark) |
|||
Licensable by such Contributor to use, reproduce, make available, |
|||
modify, display, perform, distribute, and otherwise exploit its |
|||
Contributions, either on an unmodified basis, with Modifications, or as |
|||
part of a Larger Work; and |
|||
|
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b. under Patent Claims of such Contributor to make, use, sell, offer for |
|||
sale, have made, import, and otherwise transfer either its Contributions |
|||
or its Contributor Version. |
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|
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2.2. Effective Date |
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|
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The licenses granted in Section 2.1 with respect to any Contribution become |
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effective for each Contribution on the date the Contributor first distributes |
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such Contribution. |
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|
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2.3. Limitations on Grant Scope |
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|
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The licenses granted in this Section 2 are the only rights granted under this |
|||
License. No additional rights or licenses will be implied from the distribution |
|||
or licensing of Covered Software under this License. Notwithstanding Section |
|||
2.1(b) above, no patent license is granted by a Contributor: |
|||
|
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a. for any code that a Contributor has removed from Covered Software; or |
|||
|
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b. for infringements caused by: (i) Your and any other third party’s |
|||
modifications of Covered Software, or (ii) the combination of its |
|||
Contributions with other software (except as part of its Contributor |
|||
Version); or |
|||
|
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c. under Patent Claims infringed by Covered Software in the absence of its |
|||
Contributions. |
|||
|
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This License does not grant any rights in the trademarks, service marks, or |
|||
logos of any Contributor (except as may be necessary to comply with the |
|||
notice requirements in Section 3.4). |
|||
|
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2.4. Subsequent Licenses |
|||
|
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No Contributor makes additional grants as a result of Your choice to |
|||
distribute the Covered Software under a subsequent version of this License |
|||
(see Section 10.2) or under the terms of a Secondary License (if permitted |
|||
under the terms of Section 3.3). |
|||
|
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2.5. Representation |
|||
|
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Each Contributor represents that the Contributor believes its Contributions |
|||
are its original creation(s) or it has sufficient rights to grant the |
|||
rights to its Contributions conveyed by this License. |
|||
|
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2.6. Fair Use |
|||
|
|||
This License is not intended to limit any rights You have under applicable |
|||
copyright doctrines of fair use, fair dealing, or other equivalents. |
|||
|
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2.7. Conditions |
|||
|
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Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in |
|||
Section 2.1. |
|||
|
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|
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3. Responsibilities |
|||
|
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3.1. Distribution of Source Form |
|||
|
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All distribution of Covered Software in Source Code Form, including any |
|||
Modifications that You create or to which You contribute, must be under the |
|||
terms of this License. You must inform recipients that the Source Code Form |
|||
of the Covered Software is governed by the terms of this License, and how |
|||
they can obtain a copy of this License. You may not attempt to alter or |
|||
restrict the recipients’ rights in the Source Code Form. |
|||
|
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3.2. Distribution of Executable Form |
|||
|
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If You distribute Covered Software in Executable Form then: |
|||
|
|||
a. such Covered Software must also be made available in Source Code Form, |
|||
as described in Section 3.1, and You must inform recipients of the |
|||
Executable Form how they can obtain a copy of such Source Code Form by |
|||
reasonable means in a timely manner, at a charge no more than the cost |
|||
of distribution to the recipient; and |
|||
|
|||
b. You may distribute such Executable Form under the terms of this License, |
|||
or sublicense it under different terms, provided that the license for |
|||
the Executable Form does not attempt to limit or alter the recipients’ |
|||
rights in the Source Code Form under this License. |
|||
|
|||
3.3. Distribution of a Larger Work |
|||
|
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You may create and distribute a Larger Work under terms of Your choice, |
|||
provided that You also comply with the requirements of this License for the |
|||
Covered Software. If the Larger Work is a combination of Covered Software |
|||
with a work governed by one or more Secondary Licenses, and the Covered |
|||
Software is not Incompatible With Secondary Licenses, this License permits |
|||
You to additionally distribute such Covered Software under the terms of |
|||
such Secondary License(s), so that the recipient of the Larger Work may, at |
|||
their option, further distribute the Covered Software under the terms of |
|||
either this License or such Secondary License(s). |
|||
|
|||
3.4. Notices |
|||
|
|||
You may not remove or alter the substance of any license notices (including |
|||
copyright notices, patent notices, disclaimers of warranty, or limitations |
|||
of liability) contained within the Source Code Form of the Covered |
|||
Software, except that You may alter any license notices to the extent |
|||
required to remedy known factual inaccuracies. |
|||
|
|||
3.5. Application of Additional Terms |
|||
|
|||
You may choose to offer, and to charge a fee for, warranty, support, |
|||
indemnity or liability obligations to one or more recipients of Covered |
|||
Software. However, You may do so only on Your own behalf, and not on behalf |
|||
of any Contributor. You must make it absolutely clear that any such |
|||
warranty, support, indemnity, or liability obligation is offered by You |
|||
alone, and You hereby agree to indemnify every Contributor for any |
|||
liability incurred by such Contributor as a result of warranty, support, |
|||
indemnity or liability terms You offer. You may include additional |
|||
disclaimers of warranty and limitations of liability specific to any |
|||
jurisdiction. |
|||
|
|||
4. Inability to Comply Due to Statute or Regulation |
|||
|
|||
If it is impossible for You to comply with any of the terms of this License |
|||
with respect to some or all of the Covered Software due to statute, judicial |
|||
order, or regulation then You must: (a) comply with the terms of this License |
|||
to the maximum extent possible; and (b) describe the limitations and the code |
|||
they affect. Such description must be placed in a text file included with all |
|||
distributions of the Covered Software under this License. Except to the |
|||
extent prohibited by statute or regulation, such description must be |
|||
sufficiently detailed for a recipient of ordinary skill to be able to |
|||
understand it. |
|||
|
|||
5. Termination |
|||
|
|||
5.1. The rights granted under this License will terminate automatically if You |
|||
fail to comply with any of its terms. However, if You become compliant, |
|||
then the rights granted under this License from a particular Contributor |
|||
are reinstated (a) provisionally, unless and until such Contributor |
|||
explicitly and finally terminates Your grants, and (b) on an ongoing basis, |
|||
if such Contributor fails to notify You of the non-compliance by some |
|||
reasonable means prior to 60 days after You have come back into compliance. |
|||
Moreover, Your grants from a particular Contributor are reinstated on an |
|||
ongoing basis if such Contributor notifies You of the non-compliance by |
|||
some reasonable means, this is the first time You have received notice of |
|||
non-compliance with this License from such Contributor, and You become |
|||
compliant prior to 30 days after Your receipt of the notice. |
|||
|
|||
5.2. If You initiate litigation against any entity by asserting a patent |
|||
infringement claim (excluding declaratory judgment actions, counter-claims, |
|||
and cross-claims) alleging that a Contributor Version directly or |
|||
indirectly infringes any patent, then the rights granted to You by any and |
|||
all Contributors for the Covered Software under Section 2.1 of this License |
|||
shall terminate. |
|||
|
|||
5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user |
|||
license agreements (excluding distributors and resellers) which have been |
|||
validly granted by You or Your distributors under this License prior to |
|||
termination shall survive termination. |
|||
|
|||
6. Disclaimer of Warranty |
|||
|
|||
Covered Software is provided under this License on an “as is” basis, without |
|||
warranty of any kind, either expressed, implied, or statutory, including, |
|||
without limitation, warranties that the Covered Software is free of defects, |
|||
merchantable, fit for a particular purpose or non-infringing. The entire |
|||
risk as to the quality and performance of the Covered Software is with You. |
|||
Should any Covered Software prove defective in any respect, You (not any |
|||
Contributor) assume the cost of any necessary servicing, repair, or |
|||
correction. This disclaimer of warranty constitutes an essential part of this |
|||
License. No use of any Covered Software is authorized under this License |
|||
except under this disclaimer. |
|||
|
|||
7. Limitation of Liability |
|||
|
|||
Under no circumstances and under no legal theory, whether tort (including |
|||
negligence), contract, or otherwise, shall any Contributor, or anyone who |
|||
distributes Covered Software as permitted above, be liable to You for any |
|||
direct, indirect, special, incidental, or consequential damages of any |
|||
character including, without limitation, damages for lost profits, loss of |
|||
goodwill, work stoppage, computer failure or malfunction, or any and all |
|||
other commercial damages or losses, even if such party shall have been |
|||
informed of the possibility of such damages. This limitation of liability |
|||
shall not apply to liability for death or personal injury resulting from such |
|||
party’s negligence to the extent applicable law prohibits such limitation. |
|||
Some jurisdictions do not allow the exclusion or limitation of incidental or |
|||
consequential damages, so this exclusion and limitation may not apply to You. |
|||
|
|||
8. Litigation |
|||
|
|||
Any litigation relating to this License may be brought only in the courts of |
|||
a jurisdiction where the defendant maintains its principal place of business |
|||
and such litigation shall be governed by laws of that jurisdiction, without |
|||
reference to its conflict-of-law provisions. Nothing in this Section shall |
|||
prevent a party’s ability to bring cross-claims or counter-claims. |
|||
|
|||
9. Miscellaneous |
|||
|
|||
This License represents the complete agreement concerning the subject matter |
|||
hereof. If any provision of this License is held to be unenforceable, such |
|||
provision shall be reformed only to the extent necessary to make it |
|||
enforceable. Any law or regulation which provides that the language of a |
|||
contract shall be construed against the drafter shall not be used to construe |
|||
this License against a Contributor. |
|||
|
|||
|
|||
10. Versions of the License |
|||
|
|||
10.1. New Versions |
|||
|
|||
Mozilla Foundation is the license steward. Except as provided in Section |
|||
10.3, no one other than the license steward has the right to modify or |
|||
publish new versions of this License. Each version will be given a |
|||
distinguishing version number. |
|||
|
|||
10.2. Effect of New Versions |
|||
|
|||
You may distribute the Covered Software under the terms of the version of |
|||
the License under which You originally received the Covered Software, or |
|||
under the terms of any subsequent version published by the license |
|||
steward. |
|||
|
|||
10.3. Modified Versions |
|||
|
|||
If you create software not governed by this License, and you want to |
|||
create a new license for such software, you may create and use a modified |
|||
version of this License if you rename the license and remove any |
|||
references to the name of the license steward (except to note that such |
|||
modified license differs from this License). |
|||
|
|||
10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses |
|||
If You choose to distribute Source Code Form that is Incompatible With |
|||
Secondary Licenses under the terms of this version of the License, the |
|||
notice described in Exhibit B of this License must be attached. |
|||
|
|||
Exhibit A - Source Code Form License Notice |
|||
|
|||
This Source Code Form is subject to the |
|||
terms of the Mozilla Public License, v. |
|||
2.0. If a copy of the MPL was not |
|||
distributed with this file, You can |
|||
obtain one at |
|||
http://mozilla.org/MPL/2.0/. |
|||
|
|||
If it is not possible or desirable to put the notice in a particular file, then |
|||
You may include the notice in a location (such as a LICENSE file in a relevant |
|||
directory) where a recipient would be likely to look for such a notice. |
|||
|
|||
You may add additional accurate notices of copyright ownership. |
|||
|
|||
Exhibit B - “Incompatible With Secondary Licenses” Notice |
|||
|
|||
This Source Code Form is “Incompatible |
|||
With Secondary Licenses”, as defined by |
|||
the Mozilla Public License, v. 2.0. |
|||
|
|||
@ -0,0 +1,65 @@ |
|||
# Versioning Library for Go |
|||
[](https://travis-ci.org/hashicorp/go-version) |
|||
|
|||
go-version is a library for parsing versions and version constraints, |
|||
and verifying versions against a set of constraints. go-version |
|||
can sort a collection of versions properly, handles prerelease/beta |
|||
versions, can increment versions, etc. |
|||
|
|||
Versions used with go-version must follow [SemVer](http://semver.org/). |
|||
|
|||
## Installation and Usage |
|||
|
|||
Package documentation can be found on |
|||
[GoDoc](http://godoc.org/github.com/hashicorp/go-version). |
|||
|
|||
Installation can be done with a normal `go get`: |
|||
|
|||
``` |
|||
$ go get github.com/hashicorp/go-version |
|||
``` |
|||
|
|||
#### Version Parsing and Comparison |
|||
|
|||
```go |
|||
v1, err := version.NewVersion("1.2") |
|||
v2, err := version.NewVersion("1.5+metadata") |
|||
|
|||
// Comparison example. There is also GreaterThan, Equal, and just |
|||
// a simple Compare that returns an int allowing easy >=, <=, etc. |
|||
if v1.LessThan(v2) { |
|||
fmt.Printf("%s is less than %s", v1, v2) |
|||
} |
|||
``` |
|||
|
|||
#### Version Constraints |
|||
|
|||
```go |
|||
v1, err := version.NewVersion("1.2") |
|||
|
|||
// Constraints example. |
|||
constraints, err := version.NewConstraint(">= 1.0, < 1.4") |
|||
if constraints.Check(v1) { |
|||
fmt.Printf("%s satisfies constraints %s", v1, constraints) |
|||
} |
|||
``` |
|||
|
|||
#### Version Sorting |
|||
|
|||
```go |
|||
versionsRaw := []string{"1.1", "0.7.1", "1.4-beta", "1.4", "2"} |
|||
versions := make([]*version.Version, len(versionsRaw)) |
|||
for i, raw := range versionsRaw { |
|||
v, _ := version.NewVersion(raw) |
|||
versions[i] = v |
|||
} |
|||
|
|||
// After this, the versions are properly sorted |
|||
sort.Sort(version.Collection(versions)) |
|||
``` |
|||
|
|||
## Issues and Contributing |
|||
|
|||
If you find an issue with this library, please report an issue. If you'd |
|||
like, we welcome any contributions. Fork this library and submit a pull |
|||
request. |
|||
@ -0,0 +1,156 @@ |
|||
package version |
|||
|
|||
import ( |
|||
"fmt" |
|||
"regexp" |
|||
"strings" |
|||
) |
|||
|
|||
// Constraint represents a single constraint for a version, such as
|
|||
// ">= 1.0".
|
|||
type Constraint struct { |
|||
f constraintFunc |
|||
check *Version |
|||
original string |
|||
} |
|||
|
|||
// Constraints is a slice of constraints. We make a custom type so that
|
|||
// we can add methods to it.
|
|||
type Constraints []*Constraint |
|||
|
|||
type constraintFunc func(v, c *Version) bool |
|||
|
|||
var constraintOperators map[string]constraintFunc |
|||
|
|||
var constraintRegexp *regexp.Regexp |
|||
|
|||
func init() { |
|||
constraintOperators = map[string]constraintFunc{ |
|||
"": constraintEqual, |
|||
"=": constraintEqual, |
|||
"!=": constraintNotEqual, |
|||
">": constraintGreaterThan, |
|||
"<": constraintLessThan, |
|||
">=": constraintGreaterThanEqual, |
|||
"<=": constraintLessThanEqual, |
|||
"~>": constraintPessimistic, |
|||
} |
|||
|
|||
ops := make([]string, 0, len(constraintOperators)) |
|||
for k, _ := range constraintOperators { |
|||
ops = append(ops, regexp.QuoteMeta(k)) |
|||
} |
|||
|
|||
constraintRegexp = regexp.MustCompile(fmt.Sprintf( |
|||
`^\s*(%s)\s*(%s)\s*$`, |
|||
strings.Join(ops, "|"), |
|||
VersionRegexpRaw)) |
|||
} |
|||
|
|||
// NewConstraint will parse one or more constraints from the given
|
|||
// constraint string. The string must be a comma-separated list of
|
|||
// constraints.
|
|||
func NewConstraint(v string) (Constraints, error) { |
|||
vs := strings.Split(v, ",") |
|||
result := make([]*Constraint, len(vs)) |
|||
for i, single := range vs { |
|||
c, err := parseSingle(single) |
|||
if err != nil { |
|||
return nil, err |
|||
} |
|||
|
|||
result[i] = c |
|||
} |
|||
|
|||
return Constraints(result), nil |
|||
} |
|||
|
|||
// Check tests if a version satisfies all the constraints.
|
|||
func (cs Constraints) Check(v *Version) bool { |
|||
for _, c := range cs { |
|||
if !c.Check(v) { |
|||
return false |
|||
} |
|||
} |
|||
|
|||
return true |
|||
} |
|||
|
|||
// Returns the string format of the constraints
|
|||
func (cs Constraints) String() string { |
|||
csStr := make([]string, len(cs)) |
|||
for i, c := range cs { |
|||
csStr[i] = c.String() |
|||
} |
|||
|
|||
return strings.Join(csStr, ",") |
|||
} |
|||
|
|||
// Check tests if a constraint is validated by the given version.
|
|||
func (c *Constraint) Check(v *Version) bool { |
|||
return c.f(v, c.check) |
|||
} |
|||
|
|||
func (c *Constraint) String() string { |
|||
return c.original |
|||
} |
|||
|
|||
func parseSingle(v string) (*Constraint, error) { |
|||
matches := constraintRegexp.FindStringSubmatch(v) |
|||
if matches == nil { |
|||
return nil, fmt.Errorf("Malformed constraint: %s", v) |
|||
} |
|||
|
|||
check, err := NewVersion(matches[2]) |
|||
if err != nil { |
|||
return nil, err |
|||
} |
|||
|
|||
return &Constraint{ |
|||
f: constraintOperators[matches[1]], |
|||
check: check, |
|||
original: v, |
|||
}, nil |
|||
} |
|||
|
|||
//-------------------------------------------------------------------
|
|||
// Constraint functions
|
|||
//-------------------------------------------------------------------
|
|||
|
|||
func constraintEqual(v, c *Version) bool { |
|||
return v.Equal(c) |
|||
} |
|||
|
|||
func constraintNotEqual(v, c *Version) bool { |
|||
return !v.Equal(c) |
|||
} |
|||
|
|||
func constraintGreaterThan(v, c *Version) bool { |
|||
return v.Compare(c) == 1 |
|||
} |
|||
|
|||
func constraintLessThan(v, c *Version) bool { |
|||
return v.Compare(c) == -1 |
|||
} |
|||
|
|||
func constraintGreaterThanEqual(v, c *Version) bool { |
|||
return v.Compare(c) >= 0 |
|||
} |
|||
|
|||
func constraintLessThanEqual(v, c *Version) bool { |
|||
return v.Compare(c) <= 0 |
|||
} |
|||
|
|||
func constraintPessimistic(v, c *Version) bool { |
|||
if v.LessThan(c) { |
|||
return false |
|||
} |
|||
|
|||
for i := 0; i < c.si-1; i++ { |
|||
if v.segments[i] != c.segments[i] { |
|||
return false |
|||
} |
|||
} |
|||
|
|||
return true |
|||
} |
|||
@ -0,0 +1,103 @@ |
|||
package version |
|||
|
|||
import ( |
|||
"testing" |
|||
) |
|||
|
|||
func TestNewConstraint(t *testing.T) { |
|||
cases := []struct { |
|||
input string |
|||
count int |
|||
err bool |
|||
}{ |
|||
{">= 1.2", 1, false}, |
|||
{"1.0", 1, false}, |
|||
{">= 1.x", 0, true}, |
|||
{">= 1.2, < 1.0", 2, false}, |
|||
|
|||
// Out of bounds
|
|||
{"11387778780781445675529500000000000000000", 0, true}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
v, err := NewConstraint(tc.input) |
|||
if tc.err && err == nil { |
|||
t.Fatalf("expected error for input: %s", tc.input) |
|||
} else if !tc.err && err != nil { |
|||
t.Fatalf("error for input %s: %s", tc.input, err) |
|||
} |
|||
|
|||
if len(v) != tc.count { |
|||
t.Fatalf("input: %s\nexpected len: %d\nactual: %d", |
|||
tc.input, tc.count, len(v)) |
|||
} |
|||
} |
|||
} |
|||
|
|||
func TestConstraintCheck(t *testing.T) { |
|||
cases := []struct { |
|||
constraint string |
|||
version string |
|||
check bool |
|||
}{ |
|||
{">= 1.0, < 1.2", "1.1.5", true}, |
|||
{"< 1.0, < 1.2", "1.1.5", false}, |
|||
{"= 1.0", "1.1.5", false}, |
|||
{"= 1.0", "1.0.0", true}, |
|||
{"1.0", "1.0.0", true}, |
|||
{"~> 1.0", "2.0", false}, |
|||
{"~> 1.0", "1.1", true}, |
|||
{"~> 1.0", "1.2.3", true}, |
|||
{"~> 1.0.0", "1.2.3", false}, |
|||
{"~> 1.0.0", "1.0.7", true}, |
|||
{"~> 1.0.0", "1.1.0", false}, |
|||
{"~> 1.0.7", "1.0.4", false}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
c, err := NewConstraint(tc.constraint) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
v, err := NewVersion(tc.version) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
actual := c.Check(v) |
|||
expected := tc.check |
|||
if actual != expected { |
|||
t.Fatalf("Version: %s\nConstraint: %s\nExpected: %#v", |
|||
tc.version, tc.constraint, expected) |
|||
} |
|||
} |
|||
} |
|||
|
|||
func TestConstraintsString(t *testing.T) { |
|||
cases := []struct { |
|||
constraint string |
|||
result string |
|||
}{ |
|||
{">= 1.0, < 1.2", ""}, |
|||
{"~> 1.0.7", ""}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
c, err := NewConstraint(tc.constraint) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
actual := c.String() |
|||
expected := tc.result |
|||
if expected == "" { |
|||
expected = tc.constraint |
|||
} |
|||
|
|||
if actual != expected { |
|||
t.Fatalf("Constraint: %s\nExpected: %#v\nActual: %s", |
|||
tc.constraint, expected, actual) |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,251 @@ |
|||
package version |
|||
|
|||
import ( |
|||
"bytes" |
|||
"fmt" |
|||
"reflect" |
|||
"regexp" |
|||
"strconv" |
|||
"strings" |
|||
) |
|||
|
|||
// The compiled regular expression used to test the validity of a version.
|
|||
var versionRegexp *regexp.Regexp |
|||
|
|||
// The raw regular expression string used for testing the validity
|
|||
// of a version.
|
|||
const VersionRegexpRaw string = `([0-9]+(\.[0-9]+){0,2})` + |
|||
`(-([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` + |
|||
`(\+([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` + |
|||
`?` |
|||
|
|||
// Version represents a single version.
|
|||
type Version struct { |
|||
metadata string |
|||
pre string |
|||
segments []int |
|||
si int |
|||
} |
|||
|
|||
func init() { |
|||
versionRegexp = regexp.MustCompile("^" + VersionRegexpRaw + "$") |
|||
} |
|||
|
|||
// NewVersion parses the given version and returns a new
|
|||
// Version.
|
|||
func NewVersion(v string) (*Version, error) { |
|||
matches := versionRegexp.FindStringSubmatch(v) |
|||
if matches == nil { |
|||
return nil, fmt.Errorf("Malformed version: %s", v) |
|||
} |
|||
|
|||
segmentsStr := strings.Split(matches[1], ".") |
|||
segments := make([]int, len(segmentsStr), 3) |
|||
si := 0 |
|||
for i, str := range segmentsStr { |
|||
val, err := strconv.ParseInt(str, 10, 32) |
|||
if err != nil { |
|||
return nil, fmt.Errorf( |
|||
"Error parsing version: %s", err) |
|||
} |
|||
|
|||
segments[i] = int(val) |
|||
si += 1 |
|||
} |
|||
for i := len(segments); i < 3; i++ { |
|||
segments = append(segments, 0) |
|||
} |
|||
|
|||
return &Version{ |
|||
metadata: matches[7], |
|||
pre: matches[4], |
|||
segments: segments, |
|||
si: si, |
|||
}, nil |
|||
} |
|||
|
|||
// Must is a helper that wraps a call to a function returning (*Version, error)
|
|||
// and panics if error is non-nil.
|
|||
func Must(v *Version, err error) *Version { |
|||
if err != nil { |
|||
panic(err) |
|||
} |
|||
|
|||
return v |
|||
} |
|||
|
|||
// Compare compares this version to another version. This
|
|||
// returns -1, 0, or 1 if this version is smaller, equal,
|
|||
// or larger than the other version, respectively.
|
|||
//
|
|||
// If you want boolean results, use the LessThan, Equal,
|
|||
// or GreaterThan methods.
|
|||
func (v *Version) Compare(other *Version) int { |
|||
// A quick, efficient equality check
|
|||
if v.String() == other.String() { |
|||
return 0 |
|||
} |
|||
|
|||
segmentsSelf := v.Segments() |
|||
segmentsOther := other.Segments() |
|||
|
|||
// If the segments are the same, we must compare on prerelease info
|
|||
if reflect.DeepEqual(segmentsSelf, segmentsOther) { |
|||
preSelf := v.Prerelease() |
|||
preOther := other.Prerelease() |
|||
if preSelf == "" && preOther == "" { |
|||
return 0 |
|||
} |
|||
if preSelf == "" { |
|||
return 1 |
|||
} |
|||
if preOther == "" { |
|||
return -1 |
|||
} |
|||
|
|||
return comparePrereleases(preSelf, preOther) |
|||
} |
|||
|
|||
// Compare the segments
|
|||
for i := 0; i < len(segmentsSelf); i++ { |
|||
lhs := segmentsSelf[i] |
|||
rhs := segmentsOther[i] |
|||
|
|||
if lhs == rhs { |
|||
continue |
|||
} else if lhs < rhs { |
|||
return -1 |
|||
} else { |
|||
return 1 |
|||
} |
|||
} |
|||
|
|||
panic("should not be reached") |
|||
} |
|||
|
|||
func comparePart(preSelf string, preOther string) int { |
|||
if preSelf == preOther { |
|||
return 0 |
|||
} |
|||
|
|||
// if a part is empty, we use the other to decide
|
|||
if preSelf == "" { |
|||
_, notIsNumeric := strconv.ParseInt(preOther, 10, 64) |
|||
if notIsNumeric == nil { |
|||
return -1 |
|||
} |
|||
return 1 |
|||
} |
|||
|
|||
if preOther == "" { |
|||
_, notIsNumeric := strconv.ParseInt(preSelf, 10, 64) |
|||
if notIsNumeric == nil { |
|||
return 1 |
|||
} |
|||
return -1 |
|||
} |
|||
|
|||
if preSelf > preOther { |
|||
return 1 |
|||
} |
|||
|
|||
return -1 |
|||
} |
|||
|
|||
func comparePrereleases(v string, other string) int { |
|||
// the same pre release!
|
|||
if v == other { |
|||
return 0 |
|||
} |
|||
|
|||
// split both pre releases for analyse their parts
|
|||
selfPreReleaseMeta := strings.Split(v, ".") |
|||
otherPreReleaseMeta := strings.Split(other, ".") |
|||
|
|||
selfPreReleaseLen := len(selfPreReleaseMeta) |
|||
otherPreReleaseLen := len(otherPreReleaseMeta) |
|||
|
|||
biggestLen := otherPreReleaseLen |
|||
if selfPreReleaseLen > otherPreReleaseLen { |
|||
biggestLen = selfPreReleaseLen |
|||
} |
|||
|
|||
// loop for parts to find the first difference
|
|||
for i := 0; i < biggestLen; i = i + 1 { |
|||
partSelfPre := "" |
|||
if i < selfPreReleaseLen { |
|||
partSelfPre = selfPreReleaseMeta[i] |
|||
} |
|||
|
|||
partOtherPre := "" |
|||
if i < otherPreReleaseLen { |
|||
partOtherPre = otherPreReleaseMeta[i] |
|||
} |
|||
|
|||
compare := comparePart(partSelfPre, partOtherPre) |
|||
// if parts are equals, continue the loop
|
|||
if compare != 0 { |
|||
return compare |
|||
} |
|||
} |
|||
|
|||
return 0 |
|||
} |
|||
|
|||
// Equal tests if two versions are equal.
|
|||
func (v *Version) Equal(o *Version) bool { |
|||
return v.Compare(o) == 0 |
|||
} |
|||
|
|||
// GreaterThan tests if this version is greater than another version.
|
|||
func (v *Version) GreaterThan(o *Version) bool { |
|||
return v.Compare(o) > 0 |
|||
} |
|||
|
|||
// LessThan tests if this version is less than another version.
|
|||
func (v *Version) LessThan(o *Version) bool { |
|||
return v.Compare(o) < 0 |
|||
} |
|||
|
|||
// Metadata returns any metadata that was part of the version
|
|||
// string.
|
|||
//
|
|||
// Metadata is anything that comes after the "+" in the version.
|
|||
// For example, with "1.2.3+beta", the metadata is "beta".
|
|||
func (v *Version) Metadata() string { |
|||
return v.metadata |
|||
} |
|||
|
|||
// Prerelease returns any prerelease data that is part of the version,
|
|||
// or blank if there is no prerelease data.
|
|||
//
|
|||
// Prerelease information is anything that comes after the "-" in the
|
|||
// version (but before any metadata). For example, with "1.2.3-beta",
|
|||
// the prerelease information is "beta".
|
|||
func (v *Version) Prerelease() string { |
|||
return v.pre |
|||
} |
|||
|
|||
// Segments returns the numeric segments of the version as a slice.
|
|||
//
|
|||
// This excludes any metadata or pre-release information. For example,
|
|||
// for a version "1.2.3-beta", segments will return a slice of
|
|||
// 1, 2, 3.
|
|||
func (v *Version) Segments() []int { |
|||
return v.segments |
|||
} |
|||
|
|||
// String returns the full version string included pre-release
|
|||
// and metadata information.
|
|||
func (v *Version) String() string { |
|||
var buf bytes.Buffer |
|||
fmt.Fprintf(&buf, "%d.%d.%d", v.segments[0], v.segments[1], v.segments[2]) |
|||
if v.pre != "" { |
|||
fmt.Fprintf(&buf, "-%s", v.pre) |
|||
} |
|||
if v.metadata != "" { |
|||
fmt.Fprintf(&buf, "+%s", v.metadata) |
|||
} |
|||
|
|||
return buf.String() |
|||
} |
|||
@ -0,0 +1,17 @@ |
|||
package version |
|||
|
|||
// Collection is a type that implements the sort.Interface interface
|
|||
// so that versions can be sorted.
|
|||
type Collection []*Version |
|||
|
|||
func (v Collection) Len() int { |
|||
return len(v) |
|||
} |
|||
|
|||
func (v Collection) Less(i, j int) bool { |
|||
return v[i].LessThan(v[j]) |
|||
} |
|||
|
|||
func (v Collection) Swap(i, j int) { |
|||
v[i], v[j] = v[j], v[i] |
|||
} |
|||
@ -0,0 +1,46 @@ |
|||
package version |
|||
|
|||
import ( |
|||
"reflect" |
|||
"sort" |
|||
"testing" |
|||
) |
|||
|
|||
func TestCollection(t *testing.T) { |
|||
versionsRaw := []string{ |
|||
"1.1.1", |
|||
"1.0", |
|||
"1.2", |
|||
"2", |
|||
"0.7.1", |
|||
} |
|||
|
|||
versions := make([]*Version, len(versionsRaw)) |
|||
for i, raw := range versionsRaw { |
|||
v, err := NewVersion(raw) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
versions[i] = v |
|||
} |
|||
|
|||
sort.Sort(Collection(versions)) |
|||
|
|||
actual := make([]string, len(versions)) |
|||
for i, v := range versions { |
|||
actual[i] = v.String() |
|||
} |
|||
|
|||
expected := []string{ |
|||
"0.7.1", |
|||
"1.0.0", |
|||
"1.1.1", |
|||
"1.2.0", |
|||
"2.0.0", |
|||
} |
|||
|
|||
if !reflect.DeepEqual(actual, expected) { |
|||
t.Fatalf("bad: %#v", actual) |
|||
} |
|||
} |
|||
@ -0,0 +1,208 @@ |
|||
package version |
|||
|
|||
import ( |
|||
"reflect" |
|||
"testing" |
|||
) |
|||
|
|||
func TestNewVersion(t *testing.T) { |
|||
cases := []struct { |
|||
version string |
|||
err bool |
|||
}{ |
|||
{"1.2.3", false}, |
|||
{"1.0", false}, |
|||
{"1", false}, |
|||
{"1.2.beta", true}, |
|||
{"foo", true}, |
|||
{"1.2-5", false}, |
|||
{"1.2-beta.5", false}, |
|||
{"\n1.2", true}, |
|||
{"1.2.0-x.Y.0+metadata", false}, |
|||
{"1.2.0-x.Y.0+metadata-width-hypen", false}, |
|||
{"1.2.3-rc1-with-hypen", false}, |
|||
{"1.2.3.4", true}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
_, err := NewVersion(tc.version) |
|||
if tc.err && err == nil { |
|||
t.Fatalf("expected error for version: %s", tc.version) |
|||
} else if !tc.err && err != nil { |
|||
t.Fatalf("error for version %s: %s", tc.version, err) |
|||
} |
|||
} |
|||
} |
|||
|
|||
func TestVersionCompare(t *testing.T) { |
|||
cases := []struct { |
|||
v1 string |
|||
v2 string |
|||
expected int |
|||
}{ |
|||
{"1.2.3", "1.4.5", -1}, |
|||
{"1.2-beta", "1.2-beta", 0}, |
|||
{"1.2", "1.1.4", 1}, |
|||
{"1.2", "1.2-beta", 1}, |
|||
{"1.2+foo", "1.2+beta", 0}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
v1, err := NewVersion(tc.v1) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
v2, err := NewVersion(tc.v2) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
actual := v1.Compare(v2) |
|||
expected := tc.expected |
|||
if actual != expected { |
|||
t.Fatalf( |
|||
"%s <=> %s\nexpected: %d\nactual: %d", |
|||
tc.v1, tc.v2, |
|||
expected, actual) |
|||
} |
|||
} |
|||
} |
|||
|
|||
func TestComparePreReleases(t *testing.T) { |
|||
cases := []struct { |
|||
v1 string |
|||
v2 string |
|||
expected int |
|||
}{ |
|||
{"1.2-beta.2", "1.2-beta.2", 0}, |
|||
{"1.2-beta.1", "1.2-beta.2", -1}, |
|||
{"3.2-alpha.1", "3.2-alpha", 1}, |
|||
{"1.2-beta.2", "1.2-beta.1", 1}, |
|||
{"1.2-beta", "1.2-beta.3", -1}, |
|||
{"1.2-alpha", "1.2-beta.3", -1}, |
|||
{"1.2-beta", "1.2-alpha.3", 1}, |
|||
{"3.0-alpha.3", "3.0-rc.1", -1}, |
|||
{"3.0-alpha3", "3.0-rc1", -1}, |
|||
{"3.0-alpha.1", "3.0-alpha.beta", -1}, |
|||
{"5.4-alpha", "5.4-alpha.beta", 1}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
v1, err := NewVersion(tc.v1) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
v2, err := NewVersion(tc.v2) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
actual := v1.Compare(v2) |
|||
expected := tc.expected |
|||
if actual != expected { |
|||
t.Fatalf( |
|||
"%s <=> %s\nexpected: %d\nactual: %d", |
|||
tc.v1, tc.v2, |
|||
expected, actual) |
|||
} |
|||
} |
|||
} |
|||
|
|||
func TestVersionMetadata(t *testing.T) { |
|||
cases := []struct { |
|||
version string |
|||
expected string |
|||
}{ |
|||
{"1.2.3", ""}, |
|||
{"1.2-beta", ""}, |
|||
{"1.2.0-x.Y.0", ""}, |
|||
{"1.2.0-x.Y.0+metadata", "metadata"}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
v, err := NewVersion(tc.version) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
actual := v.Metadata() |
|||
expected := tc.expected |
|||
if actual != expected { |
|||
t.Fatalf("expected: %s\nactual: %s", expected, actual) |
|||
} |
|||
} |
|||
} |
|||
|
|||
func TestVersionPrerelease(t *testing.T) { |
|||
cases := []struct { |
|||
version string |
|||
expected string |
|||
}{ |
|||
{"1.2.3", ""}, |
|||
{"1.2-beta", "beta"}, |
|||
{"1.2.0-x.Y.0", "x.Y.0"}, |
|||
{"1.2.0-x.Y.0+metadata", "x.Y.0"}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
v, err := NewVersion(tc.version) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
actual := v.Prerelease() |
|||
expected := tc.expected |
|||
if actual != expected { |
|||
t.Fatalf("expected: %s\nactual: %s", expected, actual) |
|||
} |
|||
} |
|||
} |
|||
|
|||
func TestVersionSegments(t *testing.T) { |
|||
cases := []struct { |
|||
version string |
|||
expected []int |
|||
}{ |
|||
{"1.2.3", []int{1, 2, 3}}, |
|||
{"1.2-beta", []int{1, 2, 0}}, |
|||
{"1-x.Y.0", []int{1, 0, 0}}, |
|||
{"1.2.0-x.Y.0+metadata", []int{1, 2, 0}}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
v, err := NewVersion(tc.version) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
actual := v.Segments() |
|||
expected := tc.expected |
|||
if !reflect.DeepEqual(actual, expected) { |
|||
t.Fatalf("expected: %#v\nactual: %#v", expected, actual) |
|||
} |
|||
} |
|||
} |
|||
|
|||
func TestVersionString(t *testing.T) { |
|||
cases := [][]string{ |
|||
{"1.2.3", "1.2.3"}, |
|||
{"1.2-beta", "1.2.0-beta"}, |
|||
{"1.2.0-x.Y.0", "1.2.0-x.Y.0"}, |
|||
{"1.2.0-x.Y.0+metadata", "1.2.0-x.Y.0+metadata"}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
v, err := NewVersion(tc[0]) |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
actual := v.String() |
|||
expected := tc[1] |
|||
if actual != expected { |
|||
t.Fatalf("expected: %s\nactual: %s", expected, actual) |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,21 @@ |
|||
The MIT License (MIT) |
|||
|
|||
Copyright (c) 2013 Mitchell Hashimoto |
|||
|
|||
Permission is hereby granted, free of charge, to any person obtaining a copy |
|||
of this software and associated documentation files (the "Software"), to deal |
|||
in the Software without restriction, including without limitation the rights |
|||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
|||
copies of the Software, and to permit persons to whom the Software is |
|||
furnished to do so, subject to the following conditions: |
|||
|
|||
The above copyright notice and this permission notice shall be included in |
|||
all copies or substantial portions of the Software. |
|||
|
|||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
|||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
|||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
|||
THE SOFTWARE. |
|||
@ -0,0 +1,14 @@ |
|||
# go-homedir |
|||
|
|||
This is a Go library for detecting the user's home directory without |
|||
the use of cgo, so the library can be used in cross-compilation environments. |
|||
|
|||
Usage is incredibly simple, just call `homedir.Dir()` to get the home directory |
|||
for a user, and `homedir.Expand()` to expand the `~` in a path to the home |
|||
directory. |
|||
|
|||
**Why not just use `os/user`?** The built-in `os/user` package requires |
|||
cgo on Darwin systems. This means that any Go code that uses that package |
|||
cannot cross compile. But 99% of the time the use for `os/user` is just to |
|||
retrieve the home directory, which we can do for the current user without |
|||
cgo. This library does that, enabling cross-compilation. |
|||
@ -0,0 +1,132 @@ |
|||
package homedir |
|||
|
|||
import ( |
|||
"bytes" |
|||
"errors" |
|||
"os" |
|||
"os/exec" |
|||
"path/filepath" |
|||
"runtime" |
|||
"strconv" |
|||
"strings" |
|||
"sync" |
|||
) |
|||
|
|||
// DisableCache will disable caching of the home directory. Caching is enabled
|
|||
// by default.
|
|||
var DisableCache bool |
|||
|
|||
var homedirCache string |
|||
var cacheLock sync.RWMutex |
|||
|
|||
// Dir returns the home directory for the executing user.
|
|||
//
|
|||
// This uses an OS-specific method for discovering the home directory.
|
|||
// An error is returned if a home directory cannot be detected.
|
|||
func Dir() (string, error) { |
|||
if !DisableCache { |
|||
cacheLock.RLock() |
|||
cached := homedirCache |
|||
cacheLock.RUnlock() |
|||
if cached != "" { |
|||
return cached, nil |
|||
} |
|||
} |
|||
|
|||
cacheLock.Lock() |
|||
defer cacheLock.Unlock() |
|||
|
|||
var result string |
|||
var err error |
|||
if runtime.GOOS == "windows" { |
|||
result, err = dirWindows() |
|||
} else { |
|||
// Unix-like system, so just assume Unix
|
|||
result, err = dirUnix() |
|||
} |
|||
|
|||
if err != nil { |
|||
return "", err |
|||
} |
|||
homedirCache = result |
|||
return result, nil |
|||
} |
|||
|
|||
// Expand expands the path to include the home directory if the path
|
|||
// is prefixed with `~`. If it isn't prefixed with `~`, the path is
|
|||
// returned as-is.
|
|||
func Expand(path string) (string, error) { |
|||
if len(path) == 0 { |
|||
return path, nil |
|||
} |
|||
|
|||
if path[0] != '~' { |
|||
return path, nil |
|||
} |
|||
|
|||
if len(path) > 1 && path[1] != '/' && path[1] != '\\' { |
|||
return "", errors.New("cannot expand user-specific home dir") |
|||
} |
|||
|
|||
dir, err := Dir() |
|||
if err != nil { |
|||
return "", err |
|||
} |
|||
|
|||
return filepath.Join(dir, path[1:]), nil |
|||
} |
|||
|
|||
func dirUnix() (string, error) { |
|||
// First prefer the HOME environmental variable
|
|||
if home := os.Getenv("HOME"); home != "" { |
|||
return home, nil |
|||
} |
|||
|
|||
// If that fails, try getent
|
|||
var stdout bytes.Buffer |
|||
cmd := exec.Command("getent", "passwd", strconv.Itoa(os.Getuid())) |
|||
cmd.Stdout = &stdout |
|||
if err := cmd.Run(); err != nil { |
|||
// If "getent" is missing, ignore it
|
|||
if err != exec.ErrNotFound { |
|||
return "", err |
|||
} |
|||
} else { |
|||
if passwd := strings.TrimSpace(stdout.String()); passwd != "" { |
|||
// username:password:uid:gid:gecos:home:shell
|
|||
passwdParts := strings.SplitN(passwd, ":", 7) |
|||
if len(passwdParts) > 5 { |
|||
return passwdParts[5], nil |
|||
} |
|||
} |
|||
} |
|||
|
|||
// If all else fails, try the shell
|
|||
stdout.Reset() |
|||
cmd = exec.Command("sh", "-c", "cd && pwd") |
|||
cmd.Stdout = &stdout |
|||
if err := cmd.Run(); err != nil { |
|||
return "", err |
|||
} |
|||
|
|||
result := strings.TrimSpace(stdout.String()) |
|||
if result == "" { |
|||
return "", errors.New("blank output when reading home directory") |
|||
} |
|||
|
|||
return result, nil |
|||
} |
|||
|
|||
func dirWindows() (string, error) { |
|||
drive := os.Getenv("HOMEDRIVE") |
|||
path := os.Getenv("HOMEPATH") |
|||
home := drive + path |
|||
if drive == "" || path == "" { |
|||
home = os.Getenv("USERPROFILE") |
|||
} |
|||
if home == "" { |
|||
return "", errors.New("HOMEDRIVE, HOMEPATH, and USERPROFILE are blank") |
|||
} |
|||
|
|||
return home, nil |
|||
} |
|||
@ -0,0 +1,112 @@ |
|||
package homedir |
|||
|
|||
import ( |
|||
"fmt" |
|||
"os" |
|||
"os/user" |
|||
"testing" |
|||
) |
|||
|
|||
func patchEnv(key, value string) func() { |
|||
bck := os.Getenv(key) |
|||
deferFunc := func() { |
|||
os.Setenv(key, bck) |
|||
} |
|||
|
|||
os.Setenv(key, value) |
|||
return deferFunc |
|||
} |
|||
|
|||
func BenchmarkDir(b *testing.B) { |
|||
// We do this for any "warmups"
|
|||
for i := 0; i < 10; i++ { |
|||
Dir() |
|||
} |
|||
|
|||
b.ResetTimer() |
|||
for i := 0; i < b.N; i++ { |
|||
Dir() |
|||
} |
|||
} |
|||
|
|||
func TestDir(t *testing.T) { |
|||
u, err := user.Current() |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
dir, err := Dir() |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
if u.HomeDir != dir { |
|||
t.Fatalf("%#v != %#v", u.HomeDir, dir) |
|||
} |
|||
} |
|||
|
|||
func TestExpand(t *testing.T) { |
|||
u, err := user.Current() |
|||
if err != nil { |
|||
t.Fatalf("err: %s", err) |
|||
} |
|||
|
|||
cases := []struct { |
|||
Input string |
|||
Output string |
|||
Err bool |
|||
}{ |
|||
{ |
|||
"/foo", |
|||
"/foo", |
|||
false, |
|||
}, |
|||
|
|||
{ |
|||
"~/foo", |
|||
fmt.Sprintf("%s/foo", u.HomeDir), |
|||
false, |
|||
}, |
|||
|
|||
{ |
|||
"", |
|||
"", |
|||
false, |
|||
}, |
|||
|
|||
{ |
|||
"~", |
|||
u.HomeDir, |
|||
false, |
|||
}, |
|||
|
|||
{ |
|||
"~foo/foo", |
|||
"", |
|||
true, |
|||
}, |
|||
} |
|||
|
|||
for _, tc := range cases { |
|||
actual, err := Expand(tc.Input) |
|||
if (err != nil) != tc.Err { |
|||
t.Fatalf("Input: %#v\n\nErr: %s", tc.Input, err) |
|||
} |
|||
|
|||
if actual != tc.Output { |
|||
t.Fatalf("Input: %#v\n\nOutput: %#v", tc.Input, actual) |
|||
} |
|||
} |
|||
|
|||
DisableCache = true |
|||
defer func() { DisableCache = false }() |
|||
defer patchEnv("HOME", "/custom/path/")() |
|||
expected := "/custom/path/foo/bar" |
|||
actual, err := Expand("~/foo/bar") |
|||
|
|||
if err != nil { |
|||
t.Errorf("No error is expected, got: %v", err) |
|||
} else if actual != "/custom/path/foo/bar" { |
|||
t.Errorf("Expected: %v; actual: %v", expected, actual) |
|||
} |
|||
} |
|||
@ -1,95 +0,0 @@ |
|||
/* |
|||
* Minio Cloud Storage, (C) 2015 Minio, 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 |
|||
* |
|||
* 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 main |
|||
|
|||
import ( |
|||
"fmt" |
|||
"regexp" |
|||
"runtime" |
|||
"strconv" |
|||
"strings" |
|||
) |
|||
|
|||
var minGolangRuntimeVersion = "1.5.1" |
|||
|
|||
// following code handles the current Golang release styles, we might have to update them in future
|
|||
// if golang community divulges from the below formatting style.
|
|||
const ( |
|||
betaRegexp = "beta[0-9]" |
|||
rcRegexp = "rc[0-9]" |
|||
) |
|||
|
|||
func getNormalizedGolangVersion() string { |
|||
version := strings.TrimPrefix(runtime.Version(), "go") |
|||
br := regexp.MustCompile(betaRegexp) |
|||
rr := regexp.MustCompile(rcRegexp) |
|||
betaStr := br.FindString(version) |
|||
version = strings.TrimRight(version, betaStr) |
|||
rcStr := rr.FindString(version) |
|||
version = strings.TrimRight(version, rcStr) |
|||
return version |
|||
} |
|||
|
|||
type golangVersion struct { |
|||
major, minor, patch string |
|||
} |
|||
|
|||
func newVersion(v string) golangVersion { |
|||
ver := golangVersion{} |
|||
verSlice := strings.Split(v, ".") |
|||
if len(verSlice) < 2 { |
|||
Fatalln("Version string missing major and minor versions, cannot proceed exiting.") |
|||
} |
|||
if len(verSlice) > 3 { |
|||
Fatalf("Unknown Version style format, newVersion only supports ‘major.minor.patch’ not ‘%s’.\n", v) |
|||
} |
|||
ver.major = verSlice[0] |
|||
ver.minor = verSlice[1] |
|||
if len(verSlice) == 3 { |
|||
ver.patch = verSlice[2] |
|||
} else { |
|||
ver.patch = "0" |
|||
} |
|||
return ver |
|||
} |
|||
|
|||
func (v1 golangVersion) String() string { |
|||
return fmt.Sprintf("%s%s%s", v1.major, v1.minor, v1.patch) |
|||
} |
|||
|
|||
func (v1 golangVersion) Version() int { |
|||
ver, e := strconv.Atoi(v1.String()) |
|||
if e != nil { |
|||
Fatalln("Unable to parse version string.") |
|||
} |
|||
return ver |
|||
} |
|||
|
|||
func (v1 golangVersion) LessThan(v2 golangVersion) bool { |
|||
if v1.Version() < v2.Version() { |
|||
return true |
|||
} |
|||
return false |
|||
} |
|||
|
|||
func checkGolangRuntimeVersion() { |
|||
v1 := newVersion(getNormalizedGolangVersion()) |
|||
v2 := newVersion(minGolangRuntimeVersion) |
|||
if v1.LessThan(v2) { |
|||
Fatalln("Old Golang runtime version ‘" + v1.String() + "’ detected., ‘minio’ requires minimum go1.5.1 or later.") |
|||
} |
|||
} |
|||
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