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env.go
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env.go
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package functests
import (
"fmt"
"math/rand"
"os"
"path"
"strconv"
"github.com/T0n0T/wal-g/tests_func/utils"
)
const (
EnvDirPerm os.FileMode = 0755
EnvFilePerv os.FileMode = 0644
)
func EnvExists(path string) bool {
_, err := os.Stat(path)
return err == nil
}
func SetupNewEnv(fromEnv map[string]string, envFilePath, stagingDir string) (map[string]string, error) {
if _, err := os.Stat(stagingDir); err == nil {
err = os.Chmod(stagingDir, EnvDirPerm)
if err != nil {
return nil, fmt.Errorf("can not chmod staging dir: %v", err)
}
} else if err := os.Mkdir(stagingDir, EnvDirPerm); err != nil {
return nil, fmt.Errorf("can not create staging dir: %v", err)
}
env := utils.MergeEnvs(fromEnv, DynConf(fromEnv))
file, err := os.OpenFile(envFilePath, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, EnvFilePerv)
if err != nil {
return nil, fmt.Errorf("can not open database file for writing: %v", err)
}
defer func() { _ = file.Close() }()
if err := utils.WriteEnv(env, file); err != nil {
return nil, fmt.Errorf("can not write to database file: %v", err)
}
return env, nil
}
func ReadEnv(path string) (map[string]string, error) {
file, err := os.OpenFile(path, os.O_RDONLY, EnvFilePerv)
if err != nil {
return nil, fmt.Errorf("can not open database file: %v", err)
}
defer func() { _ = file.Close() }()
envLines, err := utils.ReadLines(file)
if err != nil {
return nil, err
}
return utils.ParseEnvLines(envLines), nil
}
func SetupStaging(imagesDir, stagingDir string) error {
if err := utils.CopyDirectory(imagesDir, path.Join(stagingDir, imagesDir), ""); err != nil {
return fmt.Errorf("can not copy images into staging: %v", err)
}
walgDir := path.Join(stagingDir, "wal-g")
if err := utils.CreateDir(walgDir, 0755); err != nil {
return err
}
if err := utils.CopyDirectory("..", walgDir, "tests_func"); err != nil {
return fmt.Errorf("can not copy wal-g into staging: %v", err)
}
return nil
}
func DynConf(env map[string]string) map[string]string {
portFactor := env["TEST_ID"]
netName := fmt.Sprintf("test_net_%s", portFactor)
return map[string]string{
"DOCKER_BRIDGE_ID": strconv.Itoa(rand.Intn(65535)),
"PORT_FACTOR": portFactor,
"NETWORK_NAME": netName,
}
}