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Merge pull request #310 from akgalwas/add-scripts-for-shoot-comparison-1
Compare directories in the shoot_comparator tool
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138 changes: 138 additions & 0 deletions
138
hack/shoot-comparator/internal/directories/comparator.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| package directories | ||
|
|
||
| import ( | ||
| "github.com/kyma-project/infrastructure-manager/tools/shoot-comparator/internal/files" | ||
| "os" | ||
| "path" | ||
| "slices" | ||
| "time" | ||
| ) | ||
|
|
||
| type Result struct { | ||
| Equal bool | ||
| LeftDir string | ||
| RightDir string | ||
| LeftOnly []string | ||
| RightOnly []string | ||
| LeftDirFilesCount int | ||
| RightDirFilesCount int | ||
| Diff []Difference | ||
| } | ||
|
|
||
| type Difference struct { | ||
| Filename string | ||
| LeftFile string | ||
| RightFile string | ||
| Message string | ||
| } | ||
|
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| func CompareDirectories(leftDir, rightDir string, olderThan time.Time) (Result, error) { | ||
|
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| leftFileNames, err := getFileNames(leftDir, olderThan) | ||
| if err != nil { | ||
| return Result{}, err | ||
| } | ||
|
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| rightFileNames, err := getFileNames(rightDir, olderThan) | ||
| if err != nil { | ||
| return Result{}, err | ||
| } | ||
|
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| fileNamesToCompare := getIntersection(leftFileNames, rightFileNames) | ||
| differences, err := compare(fileNamesToCompare, leftDir, rightDir) | ||
|
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| filesExistInLeftDirOnly := filterOut(leftFileNames, fileNamesToCompare) | ||
| filesExistInRightDirOnly := filterOut(rightFileNames, fileNamesToCompare) | ||
|
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| equal := len(differences) == 0 && len(filesExistInLeftDirOnly) == 0 && len(filesExistInRightDirOnly) == 0 | ||
|
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| return Result{ | ||
| LeftDir: leftDir, | ||
| RightDir: rightDir, | ||
| Equal: equal, | ||
| Diff: differences, | ||
| RightOnly: filesExistInRightDirOnly, | ||
| LeftOnly: filesExistInLeftDirOnly, | ||
| LeftDirFilesCount: len(leftFileNames), | ||
| RightDirFilesCount: len(rightFileNames), | ||
| }, nil | ||
| } | ||
|
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| func getFileNames(dir string, olderThan time.Time) ([]string, error) { | ||
| dirEntries, err := os.ReadDir(dir) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| var fileNames []string | ||
|
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| for _, dirEntry := range dirEntries { | ||
| if dirEntry.IsDir() { | ||
| continue | ||
| } | ||
|
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| fileInfo, err := dirEntry.Info() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| if fileInfo.ModTime().After(olderThan) { | ||
| fileNames = append(fileNames, dirEntry.Name()) | ||
| } | ||
| } | ||
|
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| slices.Sort(fileNames) | ||
|
|
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| return fileNames, nil | ||
| } | ||
|
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| func getIntersection(leftFiles []string, rightFiles []string) []string { | ||
| var intersection []string | ||
| for _, leftFile := range leftFiles { | ||
| _, found := slices.BinarySearch(rightFiles, leftFile) | ||
| if found { | ||
| intersection = append(intersection, leftFile) | ||
| } | ||
| } | ||
|
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| return intersection | ||
| } | ||
|
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| func filterOut(fullFileList []string, filesToFilterOut []string) []string { | ||
| var result []string | ||
| for _, file := range fullFileList { | ||
| _, found := slices.BinarySearch(filesToFilterOut, file) | ||
|
|
||
| if !found { | ||
| result = append(result, file) | ||
| } | ||
| } | ||
|
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| return result | ||
| } | ||
|
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| func compare(filesNames []string, leftDir, rightDir string) ([]Difference, error) { | ||
| var differences []Difference | ||
|
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| for _, fileName := range filesNames { | ||
| leftFilePath := path.Join(leftDir, fileName) | ||
| rightFilePath := path.Join(rightDir, fileName) | ||
|
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| equal, diffMessage, err := files.CompareFiles(leftFilePath, rightFilePath) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| if !equal { | ||
| diff := Difference{ | ||
| Filename: fileName, | ||
| LeftFile: leftFilePath, | ||
| RightFile: rightFilePath, | ||
| Message: diffMessage, | ||
| } | ||
| differences = append(differences, diff) | ||
| } | ||
| } | ||
|
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| return differences, nil | ||
| } |
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