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cli.go
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cli.go
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package maven
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"github.com/alexflint/go-filemutex"
"github.com/jenkins-x/jx-helpers/v3/pkg/cmdrunner"
"github.com/jenkins-x/jx-helpers/v3/pkg/downloads"
"github.com/jenkins-x/jx-helpers/v3/pkg/files"
"github.com/jenkins-x/jx-helpers/v3/pkg/homedir"
"github.com/jenkins-x/jx-helpers/v3/pkg/termcolor"
"github.com/jenkins-x/jx-logging/v3/pkg/log"
)
// InstallMavenIfRequired installs maven if not available
func InstallMavenIfRequired(runner cmdrunner.CommandRunner) error {
homeDir, err := homedir.ConfigDir(os.Getenv("JX3_HOME"), ".jx3")
if err != nil {
return err
}
m, err := filemutex.New(homeDir + "/jx.lock")
if err != nil {
panic(err)
}
err = m.Lock()
if err != nil {
return err
}
cmd := &cmdrunner.Command{
Name: "mvn",
Args: []string{"-v"},
}
_, err = runner(cmd)
if err == nil {
err = m.Unlock()
if err != nil {
return err
}
return nil
}
// lets assume maven is not installed so lets download it
clientURL := fmt.Sprintf("https://repo1.maven.org/maven2/org/apache/maven/apache-maven/%s/apache-maven-%s-bin.zip", MavenVersion, MavenVersion)
log.Logger().Infof("Apache Maven is not installed so lets download: %s", termcolor.ColorInfo(clientURL))
mvnDir := filepath.Join(homeDir, "maven")
mvnTmpDir := filepath.Join(homeDir, "maven-tmp")
zipFile := filepath.Join(homeDir, "mvn.zip")
err = os.MkdirAll(mvnDir, files.DefaultDirWritePermissions)
if err != nil {
err = m.Unlock()
if err != nil {
return err
}
return err
}
log.Logger().Info("\ndownloadFile")
err = downloads.DownloadFile(clientURL, zipFile, true)
if err != nil {
err = m.Unlock()
if err != nil {
return err
}
return err
}
log.Logger().Info("\nfiles.Unzip")
err = files.Unzip(zipFile, mvnTmpDir)
if err != nil {
err = m.Unlock()
if err != nil {
return err
}
return err
}
// lets find a directory inside the unzipped folder
log.Logger().Info("\nReadDir")
files, err := ioutil.ReadDir(mvnTmpDir)
if err != nil {
err = m.Unlock()
if err != nil {
return err
}
return err
}
for _, f := range files {
name := f.Name()
if f.IsDir() && strings.HasPrefix(name, "apache-maven") {
err = os.RemoveAll(mvnDir)
if err != nil {
return err
}
err = os.Rename(filepath.Join(mvnTmpDir, name), mvnDir)
if err != nil {
err = m.Unlock()
if err != nil {
return err
}
return err
}
log.Logger().Infof("Apache Maven is installed at: %s", termcolor.ColorInfo(mvnDir))
err = m.Unlock()
if err != nil {
return err
}
err = os.Remove(zipFile)
if err != nil {
err = m.Unlock()
if err != nil {
return err
}
return err
}
err = os.RemoveAll(mvnTmpDir)
if err != nil {
err = m.Unlock()
if err != nil {
return err
}
return err
}
err = m.Unlock()
if err != nil {
return err
}
return nil
}
}
err = m.Unlock()
if err != nil {
return err
}
return fmt.Errorf("Could not find an apache-maven folder inside the unzipped maven distro at %s", mvnTmpDir)
}