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func_getversions.go
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func_getversions.go
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// Copyright 2020 Google LLC
//
// 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 ramcli
import (
"bufio"
"fmt"
"os"
"strings"
)
// getVersions look for a go.mod in the curent path, returns Go and RAM versions, crashes execution on errors
func getVersions(repositoryPath string) (goVersion, ramVersion string, err error) {
goModFilePath := repositoryPath + "/go.mod"
if _, err := os.Stat(goModFilePath); err != nil {
return "", "", err
}
file, err := os.Open(goModFilePath)
if err != nil {
return "", "", err
}
defer file.Close()
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := scanner.Text()
if strings.HasPrefix(line, "go ") {
goVersion = strings.TrimLeft(line, "go ")
}
if !(strings.Contains(line, "module") || strings.Contains(line, "replace")) {
if strings.Contains(line, "github.com/") && strings.Contains(line, "/ram ") {
parts := strings.Split(line, "/ram ")
ramVersion = parts[len(parts)-1]
}
}
}
if err := scanner.Err(); err != nil {
return "", "", err
}
if goVersion == "" {
return "", "", fmt.Errorf("goVersion NOT found, missing go x.y line in go.mod")
}
if ramVersion == "" {
return "", "", fmt.Errorf("ramVersion NOT found, missing required line to ram module in go.mod")
}
return goVersion, ramVersion, nil
}