{"record":{"id":"df16f9b361ad735e","repo":"GoogleContainerTools/skaffold","slug":"strings-join-messages","errorCode":null,"errorMessage":"strings.Join(messages, \" | \")","messagePattern":"strings\\.Join\\(messages, \" \\| \"\\)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/skaffold/tags/paths.go","lineNumber":41,"sourceCode":"\t\"path/filepath\"\n\t\"reflect\"\n\t\"slices\"\n\t\"strings\"\n\n\t\"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/output/log\"\n)\n\n// MakeFilePathsAbsolute recursively sets all fields marked with the tag `filepath` to absolute paths\nfunc MakeFilePathsAbsolute(s interface{}, base string) error {\n\terrs := makeFilePathsAbsolute(s, base)\n\tif len(errs) == 0 {\n\t\treturn nil\n\t}\n\tvar messages []string\n\tfor _, err := range errs {\n\t\tmessages = append(messages, err.Error())\n\t}\n\treturn errors.New(strings.Join(messages, \" | \"))\n}\n\nfunc makeFilePathsAbsolute(config interface{}, base string) []error {\n\tif config == nil {\n\t\treturn nil\n\t}\n\tparentStruct := reflect.Indirect(reflect.ValueOf(config))\n\n\tswitch parentStruct.Kind() {\n\tcase reflect.Struct:\n\t\tt := parentStruct.Type()\n\t\tvar errs []error\n\t\tfor i := 0; i < t.NumField(); i++ {\n\t\t\tf := t.Field(i)\n\t\t\tv := parentStruct.Field(i)\n\t\t\tif !v.CanInterface() {\n\t\t\t\treturn errs\n\t\t\t}","sourceCodeStart":23,"sourceCodeEnd":59,"githubUrl":"https://github.com/GoogleContainerTools/skaffold/blob/a1189de023efc32d4b8e11f395acc678aa555011/pkg/skaffold/tags/paths.go#L23-L59","documentation":"MakeFilePathsAbsolute walks a skaffold config and rewrites relative file paths to be absolute against the config's base directory. When that per-field rewriting produces multiple errors, it does not return them individually; instead it aggregates all messages joined with \" | \" into a single error. This message is literally the joined list of underlying validation/rewrite failures.","triggerScenarios":"A skaffold config contains multiple invalid path fields (e.g. two dockerfiles or manifests with nil/invalid contexts), so makeFilePathsAbsolute returns several errors which get joined; callers like processEachConfig surface them as one string.","commonSituations":"Configs with several artifacts each having path problems; empty config sections that yield nil errors elsewhere but path failures here; hand-edited skaffold.yaml with several wrong relative paths at once.","solutions":["Parse the joined message: each \" | \"-separated segment is an individual error to fix.","Fix each referenced path in skaffold.yaml (make sure files/dirs exist relative to the skaffold.yaml location).","Run from the directory containing skaffold.yaml, or ensure base path resolution matches your working directory.","Validate the config with `skaffold config` linting or `skaffold render` to surface remaining path issues one at a time."],"exampleFix":"// before\nreturn errors.New(strings.Join(messages, \" | \"))\n// after (caller handling)\nfor _, part := range strings.Split(err.Error(), \" | \") {\n    log.Printf(\"config path issue: %s\", part)\n}","handlingStrategy":"try-catch","validationCode":"const files = collectConfigPaths(cfg);\nfor (const f of files) {\n  if (f && !fs.existsSync(path.resolve(configDir, f))) console.warn('path missing:', f);\n}","typeGuard":null,"tryCatchPattern":"try {\n  makeFilePathsAbsolute(cfg, baseDir);\n} catch (e) {\n  const issues = e.message.split(' | ');\n  issues.forEach(msg => console.error('config path error:', msg));\n}","preventionTips":["Resolve and lint all relative paths in skaffold.yaml before running","Run skaffold from the config's directory or use absolute paths","Split error messages on ' | ' to triage each underlying failure"],"tags":["skaffold","config-validation","paths","error-aggregation"],"backgroundTag":"aggregated-validation-errors","analyzedSha":"a1189de023efc32d4b8e11f395acc678aa555011","analyzedAt":"2026-09-05T12:09:27.064Z","contentChangedAt":"2026-09-05T12:09:27.064Z","schemaVersion":2},"datasetVersion":"2026-09-12T17:17:11.597Z"}