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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| package metadata | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "log" | ||
|
|
||
| "github.com/Jguer/aur" | ||
| "github.com/itchyny/gojq" | ||
| "github.com/ohler55/ojg/oj" | ||
| "github.com/tidwall/gjson" | ||
| ) | ||
|
|
||
| type AURCache struct { | ||
| cache []byte | ||
| provideCache map[string][]*aur.Pkg | ||
| unmarshalledCache []interface{} | ||
| cacheHits int | ||
| gojqCode *gojq.Code | ||
| } | ||
|
|
||
| func NewAURCache(cachePath string) (*AURCache, error) { | ||
| aurCache, err := MakeOrReadCache(cachePath) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| inputStruct, err := oj.Parse(aurCache) | ||
|
|
||
| return &AURCache{ | ||
| cache: aurCache, | ||
| provideCache: make(map[string][]*aur.Pkg, 300), | ||
| unmarshalledCache: inputStruct.([]interface{}), | ||
| gojqCode: makeGoJQ(), | ||
| }, nil | ||
| } | ||
|
|
||
| func (a *AURCache) DebugInfo() { | ||
| fmt.Println("Byte Cache", len(a.cache)) | ||
| fmt.Println("Entries Cached", len(a.provideCache)) | ||
| fmt.Println("Cache Hits", a.cacheHits) | ||
| } | ||
|
|
||
| func (a *AURCache) FindDep(depName string) ([]*aur.Pkg, error) { | ||
| if pkgs, ok := a.provideCache[depName]; ok { | ||
| a.cacheHits++ | ||
| return pkgs, nil | ||
| } | ||
|
|
||
| final, error := a.gojqGet(depName) | ||
| if error != nil { | ||
| return nil, error | ||
| } | ||
|
|
||
| a.provideCache[depName] = final | ||
|
|
||
| return final, nil | ||
| } | ||
|
|
||
| func (a *AURCache) gjsonGet(depName string) ([]*aur.Pkg, error) { | ||
| dedupMap := make(map[string]bool) | ||
| queryProvides := fmt.Sprintf("#(Provides.#(==\"%s\"))#", depName) | ||
| queryNames := fmt.Sprintf("#(Name==\"%s\")#", depName) | ||
| queryBases := fmt.Sprintf("#(PackageBase==\"%s\")#", depName) | ||
|
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||
| results := gjson.GetManyBytes(a.cache, queryProvides, queryNames, queryBases) | ||
|
|
||
| aggregated := append(append(results[0].Array(), results[1].Array()...), results[2].Array()...) | ||
|
|
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| final := make([]*aur.Pkg, 0, len(aggregated)) | ||
|
|
||
| for i := range aggregated { | ||
| jsonString := aggregated[i].Raw | ||
| key := jsonString[:15] | ||
|
|
||
| if _, ok := dedupMap[key]; !ok { | ||
| pkg := &aur.Pkg{} | ||
| json.Unmarshal([]byte(jsonString), pkg) | ||
| final = append(final, pkg) | ||
| dedupMap[key] = true | ||
| } | ||
| } | ||
| return final, nil | ||
| } | ||
|
|
||
| func (a *AURCache) gojqGet(searchTerm string) ([]*aur.Pkg, error) { | ||
| final := make([]*aur.Pkg, 0, 1) | ||
|
|
||
| iter := a.gojqCode.Run(a.unmarshalledCache, searchTerm) // or query.RunWithContext | ||
| for { | ||
| v, ok := iter.Next() | ||
| if !ok { | ||
| break | ||
| } | ||
| if err, ok := v.(error); ok { | ||
| return nil, err | ||
| } | ||
|
|
||
| pkg := &aur.Pkg{} | ||
| bValue, err := gojq.Marshal(v) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
|
|
||
| json.Unmarshal(bValue, pkg) | ||
| final = append(final, pkg) | ||
| } | ||
|
|
||
| return final, nil | ||
| } | ||
|
|
||
| func makeGoJQ() *gojq.Code { | ||
| pattern := ".[] | select((.PackageBase == $x) or (.Name == $x) or (.Provides[]? == ($x)))" | ||
| query, err := gojq.Parse(pattern) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
|
|
||
| compiled, err := gojq.Compile(query, gojq.WithVariables([]string{"$x"})) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
|
|
||
| return compiled | ||
| } |
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