forked from thecodeteam/libstorage
/
utils_paths.go
135 lines (120 loc) · 3.9 KB
/
utils_paths.go
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package utils
import (
"bytes"
"fmt"
"os"
"path"
"runtime"
"strings"
"github.com/akutz/gotil"
"github.com/codedellemc/libstorage/api/types"
)
// NewPathConfig returns a new path configuration object.
func NewPathConfig(ctx types.Context, home, token string) *types.PathConfig {
if token == "" {
if v := os.Getenv("LIBSTORAGE_APPTOKEN"); v != "" {
token = v
} else {
token = "libstorage"
}
}
pathConfig := &types.PathConfig{
Token: token,
UserHome: path.Join(gotil.HomeDir(), fmt.Sprintf(".%s", token)),
}
pathConfig.UserDefaultTLSKnownHosts = path.Join(
pathConfig.UserHome, "known_hosts")
var (
ucTok = strings.ToUpper(token)
envVarHome = fmt.Sprintf("%s_HOME", ucTok)
envVarHomeEtc = fmt.Sprintf("%s_HOME_ETC", ucTok)
envVarHomeEtcTLS = fmt.Sprintf("%s_HOME_ETC_TLS", ucTok)
envVarHomeLib = fmt.Sprintf("%s_HOME_LIB", ucTok)
envVarHomeLog = fmt.Sprintf("%s_HOME_LOG", ucTok)
envVarHomeRun = fmt.Sprintf("%s_HOME_RUN", ucTok)
envVarHomeLSX = fmt.Sprintf("%s_HOME_LSX", ucTok)
)
// init the home dir
if home != "" {
pathConfig.Home = home
} else if pathConfig.Home = os.Getenv(envVarHome); pathConfig.Home == "" {
pathConfig.Home = "/"
}
if pathConfig.Home == "/" && os.Geteuid() != 0 {
pathConfig.Home = path.Join(gotil.HomeDir(), fmt.Sprintf(".%s", token))
}
os.MkdirAll(pathConfig.Home, 0755)
ctx.WithField("path", pathConfig.Home).Debug("mkdir -p")
// init the other paths
initPathConfigFieldWithEnvVar(ctx, envVarHomeEtc, &pathConfig.Etc)
initPathConfigFieldWithEnvVar(ctx, envVarHomeEtcTLS, &pathConfig.TLS)
initPathConfigFieldWithEnvVar(ctx, envVarHomeLib, &pathConfig.Lib)
initPathConfigFieldWithEnvVar(ctx, envVarHomeLog, &pathConfig.Log)
initPathConfigFieldWithEnvVar(ctx, envVarHomeRun, &pathConfig.Run)
initPathConfigFieldWithEnvVar(ctx, envVarHomeLSX, &pathConfig.LSX)
var (
lsxNameBuf = &bytes.Buffer{}
root = pathConfig.Home == "/"
)
fmt.Fprint(lsxNameBuf, "lsx-")
fmt.Fprint(lsxNameBuf, runtime.GOOS)
if runtime.GOARCH != "amd64" {
fmt.Fprint(lsxNameBuf, "-")
fmt.Fprint(lsxNameBuf, runtime.GOARCH)
}
if runtime.GOOS == "windows" {
fmt.Fprint(lsxNameBuf, ".exe")
}
lsx := lsxNameBuf.String()
ctx.WithField("lsx", lsx).Debug("lsx binary name")
initPathConfigFieldWithPath(
ctx, root, true, token, pathConfig.Home, "etc", &pathConfig.Etc)
initPathConfigFieldWithPath(
ctx, false, true, token, pathConfig.Etc, "tls", &pathConfig.TLS)
initPathConfigFieldWithPath(
ctx, root, true, token, pathConfig.Home, "var/lib", &pathConfig.Lib)
initPathConfigFieldWithPath(
ctx, root, true, token, pathConfig.Home, "var/log", &pathConfig.Log)
initPathConfigFieldWithPath(
ctx, root, true, token, pathConfig.Home, "var/run", &pathConfig.Run)
initPathConfigFieldWithPath(
ctx, false, false, token, pathConfig.Lib, lsx, &pathConfig.LSX)
initPathConfigFieldWithPath(
ctx, false, false, token, pathConfig.TLS,
fmt.Sprintf("%s.crt", token), &pathConfig.DefaultTLSCertFile)
initPathConfigFieldWithPath(
ctx, false, false, token, pathConfig.TLS,
fmt.Sprintf("%s.key", token), &pathConfig.DefaultTLSKeyFile)
initPathConfigFieldWithPath(
ctx, false, false, token, pathConfig.TLS,
"known_hosts", &pathConfig.DefaultTLSKnownHosts)
initPathConfigFieldWithPath(
ctx, false, false, token, pathConfig.TLS,
"cacerts", &pathConfig.DefaultTLSTrustedRootsFile)
return pathConfig
}
func initPathConfigFieldWithEnvVar(
ctx types.Context, envVarName string, field *string) {
if v := os.Getenv(envVarName); v != "" && gotil.FileExists(v) {
*field = v
}
}
func initPathConfigFieldWithPath(
ctx types.Context, root, mkdir bool,
token, parent, dir string, field *string) {
defer func() {
if !mkdir {
return
}
os.MkdirAll(*field, 0755)
ctx.WithField("path", *field).Debug("mkdir -p")
}()
if *field != "" {
return
}
if root {
*field = path.Join(parent, dir, token)
} else {
*field = path.Join(parent, dir)
}
}