pax_global_header00006660000000000000000000000064141512605240014512gustar00rootroot0000000000000052 comment=8646ae955f5c3dc0fdd6be86cfb44ce61fb73bc0 osrelease-0.1.0/000077500000000000000000000000001415126052400134725ustar00rootroot00000000000000osrelease-0.1.0/.travis.yml000066400000000000000000000000411415126052400155760ustar00rootroot00000000000000language: go go: - 1.8.x osrelease-0.1.0/LICENSE000066400000000000000000000026631415126052400145060ustar00rootroot00000000000000Copyright 2017 Andrew Cobaugh Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. osrelease-0.1.0/README.md000066400000000000000000000022701415126052400147520ustar00rootroot00000000000000# osrelease [![Build Status](https://travis-ci.org/cobaugh/osrelease.svg?branch=master)](https://travis-ci.org/cobaugh/osrelease) A Go package to make reading in os-release files easy. See https://www.freedesktop.org/software/systemd/man/os-release.html ## Installation `$ go get github.com/cobaugh/osrelease` ## Usage See [godoc](https://godoc.org/github.com/cobaugh/osrelease) ```golang package main import ( "fmt" "github.com/cobaugh/osrelease" ) func main() { // for reference, two variables are provided: fmt.Printf("EtcOsRelease = %v\n", osrelease.EtcOsRelease) fmt.Printf("UsrLibOsRelease = %v\n", osrelease.UsrLibOsRelease) // let osrelease find what file to load osrelease, err := osrelease.Read() if err != nil { fmt.Printf("Error: %v\n", err) return } fmt.Printf("PRETTY_NAME = %v\n", osrelease["PRETTY_NAME"]) // specify the file to load explicitly osrelease, err = osrelease.ReadFile("/etc/os-release") if err != nil { fmt.Printf("Error: %v\n", err) return } fmt.Printf("PRETTY_NAME = %v\n", osrelease["PRETTY_NAME"]) } ``` Output: ``` $ ./examples EtcOsRelease = /etc/os-release UsrLibOsRelease = /usr/lib/os-release PRETTY_NAME = void PRETTY_NAME = void``` osrelease-0.1.0/go.mod000066400000000000000000000000561415126052400146010ustar00rootroot00000000000000module github.com/acobaugh/osrelease go 1.17 osrelease-0.1.0/osrelease.go000066400000000000000000000061701415126052400160070ustar00rootroot00000000000000// osrelease is a go package to make reading the contents of os-release files easier // // See https://www.freedesktop.org/software/systemd/man/os-release.html package osrelease import ( "bufio" "bytes" "errors" "os" "strings" ) const EtcOsRelease string = "/etc/os-release" const UsrLibOsRelease string = "/usr/lib/os-release" // Read and return os-release, trying EtcOsRelease, followed by UsrLibOsRelease. // err will contain an error message if neither file exists or failed to parse func Read() (osrelease map[string]string, err error) { osrelease, err = ReadFile(EtcOsRelease) if err != nil { osrelease, err = ReadFile(UsrLibOsRelease) } return } // Similar to Read(), but takes the name of a file to load instead func ReadFile(filename string) (osrelease map[string]string, err error) { osrelease = make(map[string]string) err = nil lines, err := parseFile(filename) if err != nil { return } for _, v := range lines { key, value, err := parseLine(v) if err == nil { osrelease[key] = value } } return } // ReadString is similar to Read(), but takes a string to load instead func ReadString(content string) (osrelease map[string]string, err error) { osrelease = make(map[string]string) err = nil lines, err := parseString(content) if err != nil { return } for _, v := range lines { key, value, err := parseLine(v) if err == nil { osrelease[key] = value } } return } func parseFile(filename string) (lines []string, err error) { file, err := os.Open(filename) if err != nil { return nil, err } defer file.Close() scanner := bufio.NewScanner(file) for scanner.Scan() { lines = append(lines, scanner.Text()) } return lines, scanner.Err() } func parseString(content string) (lines []string, err error) { in := bytes.NewBufferString(content) reader := bufio.NewReader(in) scanner := bufio.NewScanner(reader) for scanner.Scan() { lines = append(lines, scanner.Text()) } return lines, scanner.Err() } func parseLine(line string) (key string, value string, err error) { err = nil // skip empty lines if len(line) == 0 { err = errors.New("Skipping: zero-length") return } // skip comments if line[0] == '#' { err = errors.New("Skipping: comment") return } // try to split string at the first '=' splitString := strings.SplitN(line, "=", 2) if len(splitString) != 2 { err = errors.New("Can not extract key=value") return } // trim white space from key and value key = splitString[0] key = strings.Trim(key, " ") value = splitString[1] value = strings.Trim(value, " ") // Handle double quotes if strings.ContainsAny(value, `"`) { first := string(value[0:1]) last := string(value[len(value)-1:]) if first == last && strings.ContainsAny(first, `"'`) { value = strings.TrimPrefix(value, `'`) value = strings.TrimPrefix(value, `"`) value = strings.TrimSuffix(value, `'`) value = strings.TrimSuffix(value, `"`) } } // expand anything else that could be escaped value = strings.Replace(value, `\"`, `"`, -1) value = strings.Replace(value, `\$`, `$`, -1) value = strings.Replace(value, `\\`, `\`, -1) value = strings.Replace(value, "\\`", "`", -1) return } osrelease-0.1.0/osrelease_test.go000066400000000000000000000064211415126052400170450ustar00rootroot00000000000000package osrelease import ( "fmt" "io/ioutil" "strconv" "testing" ) func expectedResults() map[int]map[string]string { return map[int]map[string]string{ 1: { "NAME": "void", "ID": "void", "DISTRIB_ID": "void", "PRETTY_NAME": "void", }, 2: {}, 3: { "NAME": "CentOS Linux", "VERSION": "7 (Core)", "ID": "centos", "ID_LIKE": "rhel fedora", "VERSION_ID": "7", "PRETTY_NAME": "CentOS Linux 7 (Core)", "ANSI_COLOR": "0;31", "CPE_NAME": "cpe:/o:centos:centos:7", "HOME_URL": "https://www.centos.org/", "BUG_REPORT_URL": "https://bugs.centos.org/", }, 4: { "NAME": "CoreOS", "ID": "coreos", "VERSION": "1185.3.0", "VERSION_ID": "1185.3.0", "BUILD_ID": "2016-11-01-0605", "PRETTY_NAME": "CoreOS 1185.3.0 (MoreOS)", "ANSI_COLOR": "1;32", "HOME_URL": "https://coreos.com/", "BUG_REPORT_URL": "https://github.com/coreos/bugs/issues", }, 5: { "NAME": "Container Linux by CoreOS", "ID": "coreos", "VERSION": "1235.6.0", "VERSION_ID": "1235.6.0", "BUILD_ID": "2017-01-10-0545", "PRETTY_NAME": "Container Linux by CoreOS 1235.6.0 (Ladybug)", "ANSI_COLOR": "38;5;75", "HOME_URL": "https://coreos.com/", "BUG_REPORT_URL": "https://github.com/coreos/bugs/issues", }, 6: { "NAME": "dummy", "DISTRIB_ID": "\"foobar", "VERSION": "17\"", "ID": ",;: ", "PRETTY_NAME": "$ ` \\ \"", "ANSI_COLOR": "", }, } } func TestReadNoFile(t *testing.T) { _, err := ReadFile("test/nosuchfile") if err == nil { t.Errorf("Read() on non-existant file returned nil, should not be nil") } } func TestReadFile(t *testing.T) { results := expectedResults() for test := 1; test <= len(results); test++ { filename := "test/os-release." + strconv.Itoa(test) osrelease, err := ReadFile(filename) if err != nil { t.Fatalf("Error reading test file '%v': %v", filename, err) } else { for key, value := range results[test] { if osrelease[key] != value { t.Errorf("In file 'test/os-release.%v', Read() returned '%v' = '%v', should be '%v'", test, key, osrelease[key], value) } } } } } func TestReadString(t *testing.T) { results := expectedResults() for test := 1; test <= len(results); test++ { filename := "test/os-release." + strconv.Itoa(test) bytes, err := ioutil.ReadFile(filename) if err != nil { t.Fatalf("Error reading test file '%v': %v", filename, err) } osrelease, err := ReadString(string(bytes)) if err != nil { t.Fatalf("Error parsing content of '%v': %v", filename, err) } else { for key, value := range results[test] { if osrelease[key] != value { t.Errorf("In file 'test/os-release.%v', Read() returned '%v' = '%v', should be '%v'", test, key, osrelease[key], value) } } } } } func ExampleRead() { osrelease, err := Read() if err != nil { fmt.Printf("Error: %v\n", err) return } fmt.Printf("PRETTY_NAME = %v\n", osrelease["PRETTY_NAME"]) } func ExampleReadFile() { osrelease, err := ReadFile("/etc/os-release") if err != nil { fmt.Printf("Error: %v\n", err) return } fmt.Printf("PRETTY_NAME = %v\n", osrelease["PRETTY_NAME"]) } osrelease-0.1.0/test/000077500000000000000000000000001415126052400144515ustar00rootroot00000000000000osrelease-0.1.0/test/os-release.1000066400000000000000000000000731415126052400165720ustar00rootroot00000000000000NAME="void" ID="void" DISTRIB_ID="void" PRETTY_NAME="void" osrelease-0.1.0/test/os-release.2000066400000000000000000000003751415126052400166000ustar00rootroot00000000000000NAME="Amazon Linux AMI" VERSION="2016.09" ID="amzn" ID_LIKE="rhel fedora" VERSION_ID="2016.09" PRETTY_NAME="Amazon Linux AMI 2016.09" ANSI_COLOR="0;33" CPE_NAME="cpe:/o:amazon:linux:2016.09:ga" HOME_URL="http://aws.amazon.com/amazon-linux-ami/" osrelease-0.1.0/test/os-release.3000066400000000000000000000006101415126052400165710ustar00rootroot00000000000000NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7" osrelease-0.1.0/test/os-release.4000066400000000000000000000003431415126052400165750ustar00rootroot00000000000000NAME=CoreOS ID=coreos VERSION=1185.3.0 VERSION_ID=1185.3.0 BUILD_ID=2016-11-01-0605 PRETTY_NAME="CoreOS 1185.3.0 (MoreOS)" ANSI_COLOR="1;32" HOME_URL="https://coreos.com/" BUG_REPORT_URL="https://github.com/coreos/bugs/issues" osrelease-0.1.0/test/os-release.5000066400000000000000000000004171415126052400166000ustar00rootroot00000000000000NAME="Container Linux by CoreOS" ID=coreos VERSION=1235.6.0 VERSION_ID=1235.6.0 BUILD_ID=2017-01-10-0545 PRETTY_NAME="Container Linux by CoreOS 1235.6.0 (Ladybug)" ANSI_COLOR="38;5;75" HOME_URL="https://coreos.com/" BUG_REPORT_URL="https://github.com/coreos/bugs/issues" osrelease-0.1.0/test/os-release.6000066400000000000000000000002161415126052400165760ustar00rootroot00000000000000# test comment # this tests all of the edge cases NAME="dummy" DISTRIB_ID="foobar VERSION=17" ID=",;: " PRETTY_NAME="\$ \` \\ \"" ANSI_COLOR=