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add hash to outputs in metafile #3530

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add hash to outputs in metafile #3530

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13 changes: 12 additions & 1 deletion internal/bundler/bundler.go
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ import (
"bytes"
"encoding/base32"
"encoding/base64"
"encoding/binary"
"fmt"
"math/rand"
"net/http"
Expand Down Expand Up @@ -2572,6 +2573,8 @@ func (s *scanner) processScannedFiles(entryPointMeta []graph.EntryPoint) []scann
Ext: &templateExt,
})) + ext

bytesHash := GenerateOutputFileHash(bytes)

// Optionally add metadata about the file
var jsonMetadataChunk string
if s.options.NeedsMetafile {
Expand All @@ -2580,16 +2583,18 @@ func (s *scanner) processScannedFiles(entryPointMeta []graph.EntryPoint) []scann
len(bytes),
)
jsonMetadataChunk = fmt.Sprintf(
"{\n \"imports\": [],\n \"exports\": [],\n \"inputs\": %s,\n \"bytes\": %d\n }",
"{\n \"imports\": [],\n \"exports\": [],\n \"inputs\": %s,\n \"bytes\": %d,\n \"hash\": \"%s\"\n }",
inputs,
len(bytes),
bytesHash,
)
}

// Generate the additional file to copy into the output directory
result.file.inputFile.AdditionalFiles = []graph.OutputFile{{
AbsPath: s.fs.Join(s.options.AbsOutputDir, relPath),
Contents: bytes,
Hash: bytesHash,
JSONMetadataChunk: jsonMetadataChunk,
}}
}
Expand Down Expand Up @@ -3312,3 +3317,9 @@ func sanitizeFilePathForVirtualModulePath(path string) string {
// avoid forbidden file names such as ".." since ".js" is a valid file name.
return sb.String()
}

func GenerateOutputFileHash(bytes []byte) string {
var hashBytes [8]byte
binary.LittleEndian.PutUint64(hashBytes[:], xxhash.Sum64(bytes))
return base64.RawStdEncoding.EncodeToString(hashBytes[:])
}
9 changes: 6 additions & 3 deletions internal/bundler_tests/snapshots/snapshots_css.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -3395,7 +3395,8 @@ console.log("bar");
"bytesInOutput": 20
}
},
"bytes": 36
"bytes": 36,
"hash": "br5jNYccCrA"
},
"out/css/DIO3TRUB.css": {
"imports": [],
Expand All @@ -3404,7 +3405,8 @@ console.log("bar");
"bytesInOutput": 23
}
},
"bytes": 40
"bytes": 40,
"hash": "pQk0CKFT9YM"
},
"out/js/MA6C7ZBK.js": {
"imports": [],
Expand All @@ -3419,7 +3421,8 @@ console.log("bar");
"bytesInOutput": 20
}
},
"bytes": 36
"bytes": 36,
"hash": "W/iiZ007tkU"
}
}
}
Expand Down
51 changes: 34 additions & 17 deletions internal/bundler_tests/snapshots/snapshots_default.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -4191,7 +4191,8 @@ x = [data_default, data_default, data_default2];
"bytesInOutput": 49
}
},
"bytes": 210
"bytes": 210,
"hash": "gbBJ/xD/zGg"
}
}
}
Expand Down Expand Up @@ -4270,7 +4271,8 @@ a {
"bytesInOutput": 148
}
},
"bytes": 148
"bytes": 148,
"hash": "+6xuYxf/kAo"
},
"out/entry.css": {
"imports": [
Expand Down Expand Up @@ -4301,7 +4303,8 @@ a {
"bytesInOutput": 65
}
},
"bytes": 98
"bytes": 98,
"hash": "DqD6C877XPw"
}
}
}
Expand Down Expand Up @@ -4505,7 +4508,8 @@ d {
"bytesInOutput": 4
}
},
"bytes": 4
"bytes": 4,
"hash": "aGYVdUIoUW0"
},
"out/copy-O3Y5SCJE.copy": {
"imports": [],
Expand All @@ -4515,7 +4519,8 @@ d {
"bytesInOutput": 4
}
},
"bytes": 4
"bytes": 4,
"hash": "WHi8JAnZ8XY"
},
"out/entry.js": {
"imports": [
Expand Down Expand Up @@ -4567,7 +4572,8 @@ d {
"bytesInOutput": 43
}
},
"bytes": 642
"bytes": 642,
"hash": "rHP7YPDyyRg"
},
"out/dynamic-TGITTCVZ.js": {
"imports": [
Expand All @@ -4585,7 +4591,8 @@ d {
"bytesInOutput": 25
}
},
"bytes": 119
"bytes": 119,
"hash": "cj974rDz0MQ"
},
"out/chunk-WXLYCZIT.js": {
"imports": [],
Expand All @@ -4594,7 +4601,8 @@ d {
"__require"
],
"inputs": {},
"bytes": 38
"bytes": 38,
"hash": "c4FAahkR2Qs"
},
"out/entry.css": {
"imports": [
Expand Down Expand Up @@ -4627,7 +4635,8 @@ d {
"bytesInOutput": 187
}
},
"bytes": 234
"bytes": 234,
"hash": "3QK6r342r5w"
}
}
}
Expand Down Expand Up @@ -4734,7 +4743,8 @@ a {
"bytesInOutput": 0
}
},
"bytes": 0
"bytes": 0,
"hash": "menYUTfbRu8"
},
"out/bytesInOutput should be at least 99 (1).js": {
"imports": [
Expand All @@ -4753,7 +4763,8 @@ a {
"bytesInOutput": 24
}
},
"bytes": 330
"bytes": 330,
"hash": "E7nBKlvM0YE"
},
"out/222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222-55DNWN2R.copy": {
"imports": [],
Expand All @@ -4763,7 +4774,8 @@ a {
"bytesInOutput": 0
}
},
"bytes": 0
"bytes": 0,
"hash": "menYUTfbRu8"
},
"out/bytesInOutput should be at least 99 (2).js": {
"imports": [
Expand All @@ -4779,7 +4791,8 @@ a {
"bytesInOutput": 149
}
},
"bytes": 203
"bytes": 203,
"hash": "GICfQTR1+uE"
},
"out/bytesInOutput should be at least 99 (3).js": {
"imports": [
Expand All @@ -4795,7 +4808,8 @@ a {
"bytesInOutput": 143
}
},
"bytes": 197
"bytes": 197,
"hash": "x6ltC//xHBY"
},
"out/333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333-DH3FVEAA.js": {
"imports": [],
Expand All @@ -4806,7 +4820,8 @@ a {
"bytesInOutput": 0
}
},
"bytes": 0
"bytes": 0,
"hash": "menYUTfbRu8"
},
"out/444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444-55DNWN2R.file": {
"imports": [],
Expand All @@ -4816,7 +4831,8 @@ a {
"bytesInOutput": 0
}
},
"bytes": 0
"bytes": 0,
"hash": "menYUTfbRu8"
},
"out/bytesInOutput should be at least 99.css": {
"imports": [
Expand All @@ -4831,7 +4847,8 @@ a {
"bytesInOutput": 144
}
},
"bytes": 198
"bytes": 198,
"hash": "OrtofXGpbWg"
}
}
}
Expand Down
12 changes: 8 additions & 4 deletions internal/bundler_tests/snapshots/snapshots_loader.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,8 @@ a {
"imports": [],
"exports": [],
"inputs": {},
"bytes": 203
"bytes": 203,
"hash": "Bm4aUvCX2dw"
},
"entry.css": {
"imports": [
Expand All @@ -74,7 +75,8 @@ a {
"bytesInOutput": 27
}
},
"bytes": 43
"bytes": 43,
"hash": "UXY2JikiRN4"
}
}
}
Expand Down Expand Up @@ -158,7 +160,8 @@ console.log(ns, import_c.default, void 0);
"imports": [],
"exports": [],
"inputs": {},
"bytes": 377
"bytes": 377,
"hash": "W0RIyQIh2TA"
},
"entry.js": {
"imports": [],
Expand All @@ -175,7 +178,8 @@ console.log(ns, import_c.default, void 0);
"bytesInOutput": 111
}
},
"bytes": 253
"bytes": 253,
"hash": "biWEeH6oSCs"
}
}
}
Expand Down
1 change: 1 addition & 0 deletions internal/graph/input.go
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,7 @@ type OutputFile struct {

AbsPath string
Contents []byte
Hash string
IsExecutable bool
}

Expand Down
22 changes: 14 additions & 8 deletions internal/linker/linker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -112,7 +112,7 @@ type chunkInfo struct {
waitForIsolatedHash func() []byte

// Other fields relating to the output file for this chunk
jsonMetadataChunkCallback func(finalOutputSize int) helpers.Joiner
jsonMetadataChunkCallback func(finalOutputSize int, finalOutputHash string) helpers.Joiner
outputSourceMap sourcemap.SourceMapPieces

// When this chunk is initially generated in isolation, the output pieces
Expand Down Expand Up @@ -701,11 +701,13 @@ func (c *linkerContext) generateChunksInParallel(additionalFiles []graph.OutputF
}

// Write the external legal comments file
legalCommentsHash := bundler.GenerateOutputFileHash(chunk.externalLegalComments)
outputFiles = append(outputFiles, graph.OutputFile{
AbsPath: c.fs.Join(c.options.AbsOutputDir, finalRelPathForLegalComments),
Contents: chunk.externalLegalComments,
Hash: legalCommentsHash,
JSONMetadataChunk: fmt.Sprintf(
"{\n \"imports\": [],\n \"exports\": [],\n \"inputs\": {},\n \"bytes\": %d\n }", len(chunk.externalLegalComments)),
"{\n \"imports\": [],\n \"exports\": [],\n \"inputs\": {},\n \"bytes\": %d,\n \"hash\": \"%s\"\n }", len(chunk.externalLegalComments), legalCommentsHash),
})
}

Expand Down Expand Up @@ -738,22 +740,25 @@ func (c *linkerContext) generateChunksInParallel(additionalFiles []graph.OutputF
// Potentially write the external source map file
switch c.options.SourceMap {
case config.SourceMapLinkedWithComment, config.SourceMapInlineAndExternal, config.SourceMapExternalWithoutComment:
outputSourceMapHash := bundler.GenerateOutputFileHash(outputSourceMap)
outputFiles = append(outputFiles, graph.OutputFile{
AbsPath: c.fs.Join(c.options.AbsOutputDir, finalRelPathForSourceMap),
Contents: outputSourceMap,
Hash: outputSourceMapHash,
JSONMetadataChunk: fmt.Sprintf(
"{\n \"imports\": [],\n \"exports\": [],\n \"inputs\": {},\n \"bytes\": %d\n }", len(outputSourceMap)),
"{\n \"imports\": [],\n \"exports\": [],\n \"inputs\": {},\n \"bytes\": %d,\n \"hash\": \"%s\"\n }", len(outputSourceMap), outputSourceMapHash),
})
}
}

// Finalize the output contents
outputContents := outputContentsJoiner.Done()
outputHash := bundler.GenerateOutputFileHash(outputContents)

// Path substitution for the JSON metadata
var jsonMetadataChunk string
if c.options.NeedsMetafile {
jsonMetadataChunkPieces := c.breakJoinerIntoPieces(chunk.jsonMetadataChunkCallback(len(outputContents)))
jsonMetadataChunkPieces := c.breakJoinerIntoPieces(chunk.jsonMetadataChunkCallback(len(outputContents), outputHash))
jsonMetadataChunkBytes, _ := c.substituteFinalPaths(jsonMetadataChunkPieces, func(finalRelPathForImport string) string {
return resolver.PrettyPath(c.fs, logger.Path{Text: c.fs.Join(c.options.AbsOutputDir, finalRelPathForImport), Namespace: "file"})
})
Expand All @@ -764,6 +769,7 @@ func (c *linkerContext) generateChunksInParallel(additionalFiles []graph.OutputF
outputFiles = append(outputFiles, graph.OutputFile{
AbsPath: c.fs.Join(c.options.AbsOutputDir, chunk.finalRelPath),
Contents: outputContents,
Hash: outputHash,
JSONMetadataChunk: jsonMetadataChunk,
IsExecutable: chunk.isExecutable,
})
Expand Down Expand Up @@ -5886,7 +5892,7 @@ func (c *linkerContext) generateChunkJS(chunkIndex int, chunkWaitGroup *sync.Wai
}
pieces[i] = outputs
}
chunk.jsonMetadataChunkCallback = func(finalOutputSize int) helpers.Joiner {
chunk.jsonMetadataChunkCallback = func(finalOutputSize int, finalOutputHash string) helpers.Joiner {
finalRelDir := c.fs.Dir(chunk.finalRelPath)
for i, sourceIndex := range metaOrder {
if i > 0 {
Expand All @@ -5903,7 +5909,7 @@ func (c *linkerContext) generateChunkJS(chunkIndex int, chunkWaitGroup *sync.Wai
if len(metaOrder) > 0 {
jMeta.AddString("\n ")
}
jMeta.AddString(fmt.Sprintf("},\n \"bytes\": %d\n }", finalOutputSize))
jMeta.AddString(fmt.Sprintf("},\n \"bytes\": %d,\n \"hash\": \"%s\"\n }", finalOutputSize, finalOutputHash))
return jMeta
}
}
Expand Down Expand Up @@ -6328,7 +6334,7 @@ func (c *linkerContext) generateChunkCSS(chunkIndex int, chunkWaitGroup *sync.Wa
for i, compileResult := range compileResults {
pieces[i] = c.breakOutputIntoPieces(compileResult.CSS)
}
chunk.jsonMetadataChunkCallback = func(finalOutputSize int) helpers.Joiner {
chunk.jsonMetadataChunkCallback = func(finalOutputSize int, finalOutputHash string) helpers.Joiner {
finalRelDir := c.fs.Dir(chunk.finalRelPath)
isFirst := true
for i, compileResult := range compileResults {
Expand All @@ -6347,7 +6353,7 @@ func (c *linkerContext) generateChunkCSS(chunkIndex int, chunkWaitGroup *sync.Wa
if len(compileResults) > 0 {
jMeta.AddString("\n ")
}
jMeta.AddString(fmt.Sprintf("},\n \"bytes\": %d\n }", finalOutputSize))
jMeta.AddString(fmt.Sprintf("},\n \"bytes\": %d,\n \"hash\": \"%s\"\n }", finalOutputSize, finalOutputHash))
return jMeta
}
}
Expand Down
1 change: 1 addition & 0 deletions lib/shared/types.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -477,6 +477,7 @@ export interface Metafile {
outputs: {
[path: string]: {
bytes: number
hash: string
inputs: {
[path: string]: {
bytesInOutput: number
Expand Down
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