Release v5.22.0

copy.Image can now copy non-image OCI artifacts.

Added support for sigstore signatures: they (and related cosign
attachments) can be copied along with images after opt-in in registries.d.
Signatures can be created by copy.Image and enforced via policy.json
(currently with public/private key pairs only).

Now requires Go 1.17.
GPGMe now must be new enough to be visible via pkg-config.

github.com/pkg/errors is no longer used; that might affect
caller-observable error types (in particular, errors.{As,Is}
might need to be used instead of pkg/errors.Cause).

Changes default paths on FreeBSD.

- Remove unused Makefile variables
- Config files should live in /usr/local on FreeBSD
- docker: validate received parts
- Use go env to fetch the go path
- docker: add workaround for CloudFront
- Improve errors messages when image missing from list
- Stop calling gpgme-config
- Fix codespell errors
- Make sure github.com/opencontainers/runc >= 1.1.2 is used
- Cirrus: use Ubuntu 22.04 LTS
- Merge pull request #1576 from mtrmac/private-image
- Merge pull request #1577 from mtrmac/mocks
- Merge pull request #1571 from mtrmac/go1.17
- Merge pull request #1578 from mtrmac/sourced-image-struct
- Fix error on parallel multiple image pullings with additionallayerstore
- Merge pull request #1579 from mtrmac/copy-layers-refactor
- Reject OCI artifacts in manifest.OCI1.ImageID
- Reject OCI artifacts in manifest.OCI1.Inspect
- Refuse to convert non-image OCI artifacts to Docker formats
- Reject OCI artifacts in image.manifestOCI1.OCIConfig
- Introduce SourcedImage.CanChangeLayerCompression, use it in copy.Image
- Use an updated CI image
- Use strings.ReplaceAll instead of strings.Replace(..., -1)
- Move the main helper removal case to the main path on RemoveAllAuthentication
- Merge pull request #1588 from mtrmac/pkg_errors
- Merge pull request #1589 from mtrmac/private-dest-impls
- Merge pull request #1590 from mtrmac/private-src-impls
- Merge pull request #1592 from mtrmac/blobcache-wrap-private
- Use "io.ReadAll" instead of "os.ReadAll"
- Merge pull request #1596 from mtrmac/cosign-payload
- Generalize copy.Image to be able to copy signatures with any format
- Merge pull request #1593 from mtrmac/cosign-sigs
- Introduce signature.Cosign as a format
- Add use-cosign-attachments to registries.d/*.yaml
- Add support for reading and writing Cosign attachments, incl. signatures
- Merge pull request #1595 from mtrmac/cosign-docker
- Add support for creating Cosign signatures
- Fix a long-standing incorrect comment
- Fix JSON syntax in the policy.json(5) man page
- Correctly decode Cosign-generated payloads
- Add Cosign verification support
- s/sigstore/lookaside/g in comments and documentation
- Refer to lookasideStorage instead of signatureStorage in code
- Add lookaside and lookaside-staging, hide sigstore and sigstore-staging
- Merge pull request #1605 from mtrmac/sigstore
- Fix a typo in error messages
- Remove a copy&pasted test entry
- Add context to some test failures
- Use more valid data in TestPRSignedByIsSignatureAuthorAccepted
- Generalize keyPath/keyData exclusivity checks
- Remove repetition in tests
- Accept multiple keyrings in newEphemeralGPGSigningMechanism
- Allow accepting multiple GPG keyrings via signedBy.keyPaths
- Switch to golang native error wrapping
- Point out use-sigstore-registries in sigstoreSigned documentation
- Use .pub extension for public keys in sigstoreSigned examples
- copy: print copy info once when writer==io.Discard
- Silence a "potentially unused parameter" warning
- Read signatures from UnparsedImage instead of ImageSource directly
- Consolidate reading messages, and checking for support, into a helper
- build(deps): bump github.com/containers/storage from 1.40.0 to 1.40.2
- build(deps): bump github.com/docker/docker
- build(deps): bump github.com/klauspost/compress from 1.15.2 to 1.15.3
- build(deps): bump github.com/klauspost/compress from 1.15.3 to 1.15.4
- build(deps): bump github.com/docker/docker
- build(deps): bump github.com/proglottis/gpgme from 0.1.1 to 0.1.2
- build(deps): bump github.com/vbauerster/mpb/v7 from 7.4.1 to 7.4.2
- build(deps): bump github.com/imdario/mergo from 0.3.12 to 0.3.13
- build(deps): bump github.com/klauspost/compress from 1.15.4 to 1.15.5
- build(deps): bump github.com/sylabs/sif/v2 from 2.7.0 to 2.7.1
- build(deps): bump github.com/klauspost/compress from 1.15.5 to 1.15.6
- build(deps): bump github.com/stretchr/testify from 1.7.1 to 1.7.2
- build(deps): bump github.com/docker/docker
- build(deps): bump github.com/stretchr/testify from 1.7.2 to 1.7.4
- build(deps): bump github.com/stretchr/testify from 1.7.4 to 1.7.5
- build(deps): bump github.com/stretchr/testify from 1.7.5 to 1.8.0
- build(deps): bump github.com/klauspost/compress from 1.15.6 to 1.15.7
- build(deps): bump github.com/proglottis/gpgme from 0.1.2 to 0.1.3
- build(deps): bump github.com/klauspost/compress from 1.15.7 to 1.15.8
- build(deps): bump github.com/sirupsen/logrus from 1.8.1 to 1.9.0
- build(deps): bump github.com/theupdateframework/go-tuf
- build(deps): bump github.com/BurntSushi/toml from 1.1.0 to 1.2.0

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

version/version.go

@@ -6,12 +6,12 @@ const (
 	// VersionMajor is for an API incompatible changes
 	VersionMajor = 5
 	// VersionMinor is for functionality in a backwards-compatible manner
-	VersionMinor = 21
+	VersionMinor = 22
 	// VersionPatch is for backwards-compatible bug fixes
-	VersionPatch = 2
+	VersionPatch = 0
 
 	// VersionDev indicates development branch. Releases will be empty string.
-	VersionDev = "-dev"
+	VersionDev = ""
 )
 
 // Version is the specification version that the package types support.