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internal/pkg: standardise artifact IR

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This should hopefully provide good separation between the artifact curing backend implementation and the (still work in progress) language. Making the IR parseable also guarantees uniqueness of the representation.

Signed-off-by: Ophestra <cat@gensokyo.uk>
This commit is contained in:
Ophestra
2026-02-04 14:41:18 +09:00
parent f982b13a59
commit e0c720681b
15 changed files with 1164 additions and 203 deletions
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31
internal/pkg/tar_test.go
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@@ -40,7 +40,7 @@ func TestTar(t *testing.T) {
}, pkg.MustDecode(
"cTw0h3AmYe7XudSoyEMByduYXqGi-N5ZkTZ0t9K5elsu3i_jNIVF5T08KR1roBFM",
))
}, pkg.MustDecode("nnOiyjjjvgZChsGtO4rA1JHckwYBBbxwNfecPJp62OFP6aoYUxHQ5UtYsrDpnwan")},
}, pkg.MustDecode("NQTlc466JmSVLIyWklm_u8_g95jEEb98PxJU-kjwxLpfdjwMWJq0G8ze9R4Vo1Vu")},
{"http expand", nil, func(t *testing.T, base *check.Absolute, c *pkg.Cache) {
checkTarHTTP(t, base, c, fstest.MapFS{
@@ -51,7 +51,7 @@ func TestTar(t *testing.T) {
}, pkg.MustDecode(
"CH3AiUrCCcVOjOYLaMKKK1Da78989JtfHeIsxMzWOQFiN4mrCLDYpoDxLWqJWCUN",
))
}, pkg.MustDecode("bQVH19N7dX50SdQ6JNVYbFdDZV4t8IaM4dhxGvjACpdoEgJ2jZJfYKLH4ya7ZD_s")},
}, pkg.MustDecode("hSoSSgCYTNonX3Q8FjvjD1fBl-E-BQyA6OTXro2OadXqbST4tZ-akGXszdeqphRe")},
})
}
@@ -98,17 +98,36 @@ func checkTarHTTP(
wantIdent := func() pkg.ID {
h := sha512.New384()
// kind uint64
h.Write([]byte{byte(pkg.KindTar), 0, 0, 0, 0, 0, 0, 0})
// deps_sz uint64
h.Write([]byte{1, 0, 0, 0, 0, 0, 0, 0})
// kind uint64
h.Write([]byte{byte(pkg.KindHTTPGet), 0, 0, 0, 0, 0, 0, 0})
// ident ID
h0 := sha512.New384()
// kind uint64
h0.Write([]byte{byte(pkg.KindHTTPGet), 0, 0, 0, 0, 0, 0, 0})
h0.Write(testdataChecksum[:])
// deps_sz uint64
h0.Write([]byte{0, 0, 0, 0, 0, 0, 0, 0})
// url string
h0.Write([]byte{byte(pkg.IRKindString), 0, 0, 0})
h0.Write([]byte{0x10, 0, 0, 0})
h0.Write([]byte("file:///testdata"))
// end(KnownChecksum)
h0.Write([]byte{byte(pkg.IRKindEnd), 0, 0, 0})
h0.Write([]byte{byte(pkg.IREndKnownChecksum), 0, 0, 0})
// checksum Checksum
h0.Write(testdataChecksum[:])
h.Write(h0.Sum(nil))
h.Write(make([]byte, len(pkg.Checksum{})))
h.Write([]byte{pkg.TarGzip, 0, 0, 0, 0, 0, 0, 0})
// compression uint32
h.Write([]byte{byte(pkg.IRKindUint32), 0, 0, 0})
h.Write([]byte{pkg.TarGzip, 0, 0, 0})
// end
h.Write([]byte{byte(pkg.IRKindEnd), 0, 0, 0})
h.Write([]byte{0, 0, 0, 0})
return pkg.ID(h.Sum(nil))
}()