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Unverified Commit 37f9c8ad authored by Blake Mizerany's avatar Blake Mizerany Committed by GitHub
Browse files

types/model: overhaul Name and Digest types (#3924)

parent 2a80f55e
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Inline Side-by-side
Showing with 528 additions and 1412 deletions
server/images.go
View file @ 37f9c8ad
......@@ -703,17 +703,24 @@ func convertModel(name, path string, fn func(resp api.ProgressResponse)) (string
}
func CopyModel(src, dst model.Name) error {
if !dst.IsFullyQualified() {
return model.Unqualified(dst)
}
if !src.IsFullyQualified() {
return model.Unqualified(src)
}
manifests, err := GetManifestPath()
if err != nil {
return err
}
dstpath := filepath.Join(manifests, dst.FilepathNoBuild())
dstpath := filepath.Join(manifests, dst.Filepath())
if err := os.MkdirAll(filepath.Dir(dstpath), 0o755); err != nil {
return err
}
srcpath := filepath.Join(manifests, src.FilepathNoBuild())
srcpath := filepath.Join(manifests, src.Filepath())
srcfile, err := os.Open(srcpath)
if err != nil {
return err
......
types/model/digest.go deleted 100644 → 0
View file @ 2a80f55e
package model
import (
"fmt"
"log/slog"
"strings"
"unicode"
)
// Digest represents a digest of a model Manifest. It is a comparable value
// type and is immutable.
//
// The zero Digest is not a valid digest.
type Digest struct {
s string
}
// Split returns the digest type and the digest value.
func (d Digest) Split() (typ, digest string) {
typ, digest, _ = strings.Cut(d.s, "-")
return
}
// String returns the digest in the form of "<digest-type>-<digest>", or the
// empty string if the digest is invalid.
func (d Digest) String() string { return d.s }
// IsValid returns true if the digest is valid (not zero).
//
// A valid digest may be created only by ParseDigest, or
// ParseName(name).Digest().
func (d Digest) IsValid() bool { return d.s != "" }
// LogValue implements slog.Value.
func (d Digest) LogValue() slog.Value {
return slog.StringValue(d.String())
}
var (
_ slog.LogValuer = Digest{}
)
// ParseDigest parses a string in the form of "<digest-type>-<digest>" into a
// Digest.
func ParseDigest(s string) Digest {
typ, digest, ok := strings.Cut(s, "-")
if !ok {
typ, digest, ok = strings.Cut(s, ":")
}
if ok && isValidDigestType(typ) && isValidHex(digest) && len(digest) >= 2 {
return Digest{s: fmt.Sprintf("%s-%s", typ, digest)}
}
return Digest{}
}
func MustParseDigest(s string) Digest {
d := ParseDigest(s)
if !d.IsValid() {
panic(fmt.Sprintf("invalid digest: %q", s))
}
return d
}
func isValidDigestType(s string) bool {
if len(s) == 0 {
return false
}
for _, r := range s {
if !unicode.IsLower(r) && !unicode.IsDigit(r) {
return false
}
}
return true
}
func isValidHex(s string) bool {
if len(s) == 0 {
return false
}
for i := range s {
c := s[i]
if c < '0' || c > '9' && c < 'a' || c > 'f' {
return false
}
}
return true
}
types/model/digest_test.go deleted 100644 → 0
View file @ 2a80f55e
package model
import "testing"
var testDigests = map[string]Digest{
"": {},
"sha256-1234": {s: "sha256-1234"},
"sha256-5678": {s: "sha256-5678"},
"blake2-9abc": {s: "blake2-9abc"},
"-1234": {},
"sha256-": {},
"sha256-1234-5678": {},
"sha256-P": {}, // invalid hex
"sha256-1234P": {},
"---": {},
}
func TestDigestParse(t *testing.T) {
// Test cases.
for s, want := range testDigests {
got := ParseDigest(s)
t.Logf("ParseDigest(%q) = %#v", s, got)
if got != want {
t.Errorf("ParseDigest(%q) = %q; want %q", s, got, want)
}
}
}
func TestDigestString(t *testing.T) {
// Test cases.
for s, d := range testDigests {
want := s
if !d.IsValid() {
want = ""
}
got := d.String()
if got != want {
t.Errorf("ParseDigest(%q).String() = %q; want %q", s, got, want)
}
got = ParseDigest(s).String()
if got != want {
t.Errorf("roundtrip ParseDigest(%q).String() = %q; want %q", s, got, want)
}
}
}
types/model/name.go
View file @ 37f9c8ad
This diff is collapsed.
types/model/name_test.go
View file @ 37f9c8ad
This diff is collapsed.
types/model/testdata/fuzz/FuzzParseRef/b51b1c875e61a948 deleted 100644 → 0
View file @ 2a80f55e
go test fuzz v1
string("0+.\xf2\x80\xf6\x9d00000\xe5\x99\xe6\xd900\xd90\xa60\x91\xdc0\xff\xbf\x99\xe800\xb9\xdc\xd6\xc300\x970\xfb\xfd0\xe0\x8a\xe1\xad\xd40\x9700\xa80\x980\xdd0000\xb00\x91000\xfe0\x89\x9b\x90\x93\x9f0\xe60\xf7\x84\xb0\x87\xa5\xff0\xa000\x9a\x85\xf6\x85\xfe\xa9\xf9\xe9\xde00\xf4\xe0\x8f\x81\xad\xde00\xd700\xaa\xe000000\xb1\xee0\x91")
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