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