87 lines
2.2 KiB
Go
87 lines
2.2 KiB
Go
package dockeroptions
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import (
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"bufio"
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"fmt"
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"os"
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"path/filepath"
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"sort"
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"strings"
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"github.com/dokku/dokku/plugins/common"
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)
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// AddDockerOptionToPhases adds docker option to specified phases
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func AddDockerOptionToPhases(appName string, phases []string, option string) error {
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for _, phase := range phases {
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if err := touchPhaseFile(appName, phase); err != nil {
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return err
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}
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options, err := GetDockerOptionsForPhase(appName, phase)
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if err != nil {
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return err
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}
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options = append(options, option)
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sort.Strings(options)
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if err = writeDockerOptionsForPhase(appName, phase, options); err != nil {
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return err
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}
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}
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return nil
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}
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// GetDockerOptionsForPhase returns the docker options for the specified phase
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func GetDockerOptionsForPhase(appName string, phase string) ([]string, error) {
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options := []string{}
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if err := touchPhaseFile(appName, phase); err != nil {
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return options, err
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}
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phaseFilePath := getPhaseFilePath(appName, phase)
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file, err := os.Open(phaseFilePath)
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if err != nil {
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return options, fmt.Errorf("Unable to open docker options phase file %s.%s: %s", appName, appName, err.Error())
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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for scanner.Scan() {
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options = append(options, strings.TrimSpace(scanner.Text()))
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}
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if err = scanner.Err(); err != nil {
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return options, fmt.Errorf("Unable to read docker options phase file %s.%s: %s", appName, appName, err.Error())
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}
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return options, nil
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}
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func getPhaseFilePath(appName string, phase string) string {
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return filepath.Join(common.MustGetEnv("DOKKU_ROOT"), appName, "DOCKER_OPTIONS_"+strings.ToUpper(phase))
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}
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func touchPhaseFile(appName string, phase string) error {
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phaseFilePath := getPhaseFilePath(appName, phase)
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_, err := os.Stat(phaseFilePath)
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if !os.IsNotExist(err) {
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return nil
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}
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file, err := os.Create(phaseFilePath)
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if err != nil {
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return fmt.Errorf("Unable to create docker options phase file %s.%s: %s", appName, phase, err.Error())
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}
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defer file.Close()
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return nil
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}
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func writeDockerOptionsForPhase(appName string, phase string, options []string) error {
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phaseFilePath := getPhaseFilePath(appName, phase)
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return common.WriteSliceToFile(phaseFilePath, options)
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}
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