d76645680f
Bump containers/image (pulling in its new dependency on ostree-go), containers/storage, and updated image-spec. This pulls in the OCI v1.0 specifications and code that allows us to support 1.0 images. Signed-off-by: Dan Walsh <dwalsh@redhat.com> Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
93 lines
2.5 KiB
Go
93 lines
2.5 KiB
Go
// Package otbuiltin contains all of the basic commands for creating and
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// interacting with an ostree repository
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package otbuiltin
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import (
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"errors"
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"fmt"
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"runtime"
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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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type Repo struct {
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//*glib.GObject
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ptr unsafe.Pointer
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}
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// Converts an ostree repo struct to its C equivalent
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func (r *Repo) native() *C.OstreeRepo {
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//return (*C.OstreeRepo)(r.Ptr())
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return (*C.OstreeRepo)(r.ptr)
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}
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// Takes a C ostree repo and converts it to a Go struct
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func repoFromNative(p *C.OstreeRepo) *Repo {
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if p == nil {
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return nil
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}
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//o := (*glib.GObject)(unsafe.Pointer(p))
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//r := &Repo{o}
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r := &Repo{unsafe.Pointer(p)}
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return r
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}
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// Checks if the repo has been initialized
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func (r *Repo) isInitialized() bool {
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if r.ptr != nil {
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return true
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}
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return false
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}
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// Attempts to open the repo at the given path
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func OpenRepo(path string) (*Repo, error) {
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var cerr *C.GError = nil
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cpath := C.CString(path)
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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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repo := repoFromNative(crepo)
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r := glib.GoBool(glib.GBoolean(C.ostree_repo_open(crepo, nil, &cerr)))
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if !r {
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return nil, generateError(cerr)
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}
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return repo, nil
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}
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// Enable support for tombstone commits, which allow the repo to distinguish between
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// commits that were intentionally deleted and commits that were removed accidentally
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func enableTombstoneCommits(repo *Repo) error {
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var tombstoneCommits bool
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var config *C.GKeyFile = C.ostree_repo_get_config(repo.native())
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var cerr *C.GError
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tombstoneCommits = glib.GoBool(glib.GBoolean(C.g_key_file_get_boolean(config, (*C.gchar)(C.CString("core")), (*C.gchar)(C.CString("tombstone-commits")), nil)))
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//tombstoneCommits is false only if it really is false or if it is set to FALSE in the config file
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if !tombstoneCommits {
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C.g_key_file_set_boolean(config, (*C.gchar)(C.CString("core")), (*C.gchar)(C.CString("tombstone-commits")), C.TRUE)
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if !glib.GoBool(glib.GBoolean(C.ostree_repo_write_config(repo.native(), config, &cerr))) {
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return generateError(cerr)
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}
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}
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return nil
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}
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func generateError(err *C.GError) error {
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goErr := glib.ConvertGError(glib.ToGError(unsafe.Pointer(err)))
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_, file, line, ok := runtime.Caller(1)
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if ok {
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return errors.New(fmt.Sprintf("%s:%d - %s", file, line, goErr))
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} else {
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return goErr
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}
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}
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