fix: output_cache.go is still using mtime instead of hashing

go.mod

@@ -1,6 +1,6 @@
 module github.com/goforj/wire
 
-go 1.19
+go 1.22
 
 require (
 	github.com/fsnotify/fsnotify v1.7.0
@@ -11,7 +11,9 @@ require (
 )
 
 require (
+	github.com/klauspost/cpuid/v2 v2.2.10 // indirect
+	github.com/zeebo/xxh3 v1.1.0 // indirect
 	golang.org/x/mod v0.20.0 // indirect
 	golang.org/x/sync v0.8.0 // indirect
-	golang.org/x/sys v0.23.0 // indirect
+	golang.org/x/sys v0.30.0 // indirect
 )

go.sum

@@ -4,13 +4,19 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/subcommands v1.2.0 h1:vWQspBTo2nEqTUFita5/KeEWlUL8kQObDFbub/EN9oE=
 github.com/google/subcommands v1.2.0/go.mod h1:ZjhPrFU+Olkh9WazFPsl27BQ4UPiG37m3yTrtFlrHVk=
+github.com/klauspost/cpuid/v2 v2.2.10 h1:tBs3QSyvjDyFTq3uoc/9xFpCuOsJQFNPiAhYdw2skhE=
+github.com/klauspost/cpuid/v2 v2.2.10/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/zeebo/xxh3 v1.1.0 h1:s7DLGDK45Dyfg7++yxI0khrfwq9661w9EN78eP/UZVs=
+github.com/zeebo/xxh3 v1.1.0/go.mod h1:IisAie1LELR4xhVinxWS5+zf1lA4p0MW4T+w+W07F5s=
 golang.org/x/mod v0.20.0 h1:utOm6MM3R3dnawAiJgn0y+xvuYRsm1RKM/4giyfDgV0=
 golang.org/x/mod v0.20.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
 golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.23.0 h1:YfKFowiIMvtgl1UERQoTPPToxltDeZfbj4H7dVUCwmM=
 golang.org/x/sys v0.23.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
+golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/tools v0.24.1 h1:vxuHLTNS3Np5zrYoPRpcheASHX/7KiGo+8Y4ZM1J2O8=
 golang.org/x/tools v0.24.1/go.mod h1:YhNqVBIfWHdzvTLs0d8LCuMhkKUgSUKldakyV7W/WDQ=

internal/loader/artifact_cache.go

@@ -16,15 +16,15 @@ package loader
 
 import (
 	"bytes"
-	"crypto/sha256"
-	"encoding/hex"
 	"go/token"
 	"go/types"
 	"io"
 	"os"
 	"path/filepath"
 	"runtime"
+	"strconv"
 
+	"github.com/zeebo/xxh3"
 	"golang.org/x/tools/go/gcexportdata"
 
 	"github.com/goforj/wire/internal/cachepaths"
@@ -56,8 +56,8 @@ func loaderArtifactPath(env []string, meta *packageMeta, isLocal bool) (string,
 }
 
 func loaderArtifactKey(meta *packageMeta, isLocal bool) (string, error) {
-	sum := sha256.New()
-	sum.Write([]byte("wire-loader-artifact-v4\n"))
+	sum := xxh3.New()
+	sum.Write([]byte("wire-loader-artifact-v5\n"))
 	sum.Write([]byte(runtime.Version()))
 	sum.Write([]byte{'\n'})
 	sum.Write([]byte(meta.ImportPath))
@@ -83,22 +83,21 @@ func loaderArtifactKey(meta *packageMeta, isLocal bool) (string, error) {
 			sum.Write([]byte(meta.Error.Err))
 			sum.Write([]byte{'\n'})
 		}
-		return hex.EncodeToString(sum.Sum(nil)), nil
+		return strconv.FormatUint(sum.Sum64(), 16), nil
 	}
 	if err := hashMetaFiles(sum, metaFiles(meta)); err != nil {
 		return "", err
 	}
-	return hex.EncodeToString(sum.Sum(nil)), nil
+	return strconv.FormatUint(sum.Sum64(), 16), nil
 }
 
-// hashFileContent returns the hex-encoded SHA-256 of the file content.
+// hashFileContent returns the hex-encoded xxh3 hash of the file content.
 func hashFileContent(path string) (string, error) {
 	data, err := os.ReadFile(path)
 	if err != nil {
 		return "", err
 	}
-	h := sha256.Sum256(data)
-	return hex.EncodeToString(h[:]), nil
+	return strconv.FormatUint(xxh3.Hash(data), 16), nil
 }
 
 // hashMetaFiles writes content-based hashes for each file into sum.

internal/loader/discovery_cache.go

@@ -2,15 +2,16 @@ package loader
 
 import (
 	"bytes"
-	"crypto/sha256"
 	"encoding/gob"
-	"encoding/hex"
 	"go/parser"
 	"go/token"
 	"os"
 	"path/filepath"
 	"runtime"
 	"sort"
+	"strconv"
+
+	"github.com/zeebo/xxh3"
 
 	"github.com/goforj/wire/internal/cachepaths"
 )
@@ -254,15 +255,15 @@ func fingerprintDiscoveryFile(path string) (discoveryFileFingerprint, bool) {
 	if err != nil {
 		return discoveryFileFingerprint{}, false
 	}
-	sum := sha256.New()
+	sum := xxh3.New()
 	sum.Write([]byte(filepath.Base(path)))
 	sum.Write([]byte{0})
 	file, err := parser.ParseFile(token.NewFileSet(), path, src, parser.ImportsOnly|parser.ParseComments)
 	if err != nil {
 		sum.Write(src)
 		return discoveryFileFingerprint{
 			Path: canonicalLoaderPath(path),
-			Hash: hex.EncodeToString(sum.Sum(nil)),
+			Hash: strconv.FormatUint(sum.Sum64(), 16),
 		}, true
 	}
 	if offset := int(file.Package) - 1; offset > 0 && offset <= len(src) {
@@ -280,7 +281,7 @@ func fingerprintDiscoveryFile(path string) (discoveryFileFingerprint, bool) {
 	}
 	return discoveryFileFingerprint{
 		Path: canonicalLoaderPath(path),
-		Hash: hex.EncodeToString(sum.Sum(nil)),
+		Hash: strconv.FormatUint(sum.Sum64(), 16),
 	}, true
 }
 
@@ -297,6 +298,5 @@ func hashGob(v interface{}) (string, error) {
 	if err := gob.NewEncoder(&buf).Encode(v); err != nil {
 		return "", err
 	}
-	sum := sha256.Sum256(buf.Bytes())
-	return hex.EncodeToString(sum[:]), nil
+	return strconv.FormatUint(xxh3.Hash(buf.Bytes()), 16), nil
 }