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Code Issues Packages 1 Wiki Activity

Enable caching

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This commit is contained in:
Ryan Dahl 2018-05-17 20:53:39 -04:00
parent 05672b7e24
commit 4dd46920ee
1 changed files with 30 additions and 6 deletions
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36
main.go
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@ -18,6 +18,11 @@ func SourceCodeHash(filename string, sourceCodeBuf []byte) string {
return hex.EncodeToString(h.Sum(nil))
}
func CacheFileName(filename string, sourceCodeBuf []byte) string {
cacheKey := SourceCodeHash(filename, sourceCodeBuf)
return path.Join(CompileDir, cacheKey+".js")
}
func HandleSourceCodeFetch(filename string) []byte {
res := &Msg{Kind: Msg_SOURCE_CODE_FETCH_RES}
sourceCodeBuf, err := Asset("dist/" + filename)
@ -27,13 +32,21 @@ func HandleSourceCodeFetch(filename string) []byte {
if err != nil {
res.Error = err.Error()
} else {
cacheKey := SourceCodeHash(filename, sourceCodeBuf)
println("cacheKey", filename, cacheKey)
// TODO For now don't do any cache lookups..
cacheFn := CacheFileName(filename, sourceCodeBuf)
outputCodeBuf, err := ioutil.ReadFile(cacheFn)
var outputCode string
if os.IsNotExist(err) {
outputCode = ""
} else if err != nil {
res.Error = err.Error()
} else {
outputCode = string(outputCodeBuf)
}
res.Payload = &Msg_SourceCodeFetchRes{
SourceCodeFetchRes: &SourceCodeFetchResMsg{
SourceCode: string(sourceCodeBuf),
OutputCode: "",
OutputCode: outputCode,
},
}
}
@ -42,8 +55,19 @@ func HandleSourceCodeFetch(filename string) []byte {
return out
}
func HandleSourceCodeCache(filename string, sourceCode string, outputCode string) []byte {
return nil
func HandleSourceCodeCache(filename string, sourceCode string,
outputCode string) []byte {
fn := CacheFileName(filename, []byte(sourceCode))
outputCodeBuf := []byte(outputCode)
err := ioutil.WriteFile(fn, outputCodeBuf, 0600)
res := &Msg{Kind: Msg_DATA_RESPONSE}
if err != nil {
res.Error = err.Error()
}
out, err := proto.Marshal(res)
check(err)
return out
}
func ReadFileSync(filename string) []byte {