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package otbuiltin
import (
"errors"
"strings"
"unsafe"
glib "github.com/sjoerdsimons/ostree-go/pkg/glibobject"
)
// #cgo pkg-config: ostree-1
// #include <stdlib.h>
// #include <glib.h>
// #include <ostree.h>
// #include "builtin.go.h"
import "C"
// Declare variables for options
var initOpts initOptions
// Contains all of the options for initializing an ostree repo
type initOptions struct {
Mode string // either bare, archive-z2, or bare-user
repoMode C.OstreeRepoMode
}
// Instantiates and returns an initOptions struct with default values set
func NewInitOptions() initOptions {
io := initOptions{}
io.Mode = "bare"
io.repoMode = C.OSTREE_REPO_MODE_BARE
return io
}
// Initializes a new ostree repository at the given path. Returns true
// if the repo exists at the location, regardless of whether it was initialized
// by the function or if it already existed. Returns an error if the repo could
// not be initialized
func Init(path string, options initOptions) (bool, error) {
initOpts = options
err := parseMode()
if err != nil {
return false, err
}
// Create a repo struct from the path
var cerr *C.GError
defer C.free(unsafe.Pointer(cerr))
cpath := C.CString(path)
defer C.free(unsafe.Pointer(cpath))
pathc := C.g_file_new_for_path(cpath)
defer C.g_object_unref(C.gpointer(pathc))
crepo := C.ostree_repo_new(pathc)
// If the repo exists in the filesystem, return an error but set exists to true
/* var exists C.gboolean = 0
success := glib.GoBool(glib.GBoolean(C.ostree_repo_exists(crepo, &exists, &cerr)))
if exists != 0 {
err = errors.New("repository already exists")
return true, err
} else if !success {
return false, generateError(cerr)
}*/
cerr = nil
created := glib.GoBool(glib.GBoolean(C.ostree_repo_create(crepo, initOpts.repoMode, nil, &cerr)))
if !created {
err := generateError(cerr)
errString := err.Error()
if strings.Contains(errString, "File exists") {
return true, err
}
return false, err
}
return true, nil
}
// Converts the mode string to a C.OSTREE_REPO_MODE enum value
func parseMode() error {
if strings.EqualFold(initOpts.Mode, "bare") {
initOpts.repoMode = C.OSTREE_REPO_MODE_BARE
} else if strings.EqualFold(initOpts.Mode, "bare-user") {
initOpts.repoMode = C.OSTREE_REPO_MODE_BARE_USER
} else if strings.EqualFold(initOpts.Mode, "archive-z2") {
initOpts.repoMode = C.OSTREE_REPO_MODE_ARCHIVE_Z2
} else {
return errors.New("Invalid option for mode")
}
return nil
}
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