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| 1 | +/* |
| 2 | + * Original code from: https://github.com/opencontainers/runtime-spec/blob/643c1429d905bba70fe977bae274f367ad101e73/schema/validate.go |
| 3 | + * Changes: |
| 4 | + * - Output errors to stderr |
| 5 | + * - Refactored to use package-internal validation library |
| 6 | + * |
| 7 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | + * you may not use this file except in compliance with the License. |
| 9 | + * You may obtain a copy of the License at |
| 10 | + * |
| 11 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | + * |
| 13 | + * Unless required by applicable law or agreed to in writing, software |
| 14 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | + * See the License for the specific language governing permissions and |
| 17 | + * limitations under the License. |
| 18 | + */ |
| 19 | + |
| 20 | +package main |
| 21 | + |
| 22 | +import ( |
| 23 | + "flag" |
| 24 | + "fmt" |
| 25 | + "io/ioutil" |
| 26 | + "os" |
| 27 | + |
| 28 | + "github.com/container-orchestrated-devices/container-device-interface/schema" |
| 29 | +) |
| 30 | + |
| 31 | +const usage = `Validate is used to check document with specified schema. |
| 32 | +You can use validate in following ways: |
| 33 | +
|
| 34 | + 1.specify document file as an argument |
| 35 | + validate --schema <schema.json> <document.json> |
| 36 | +
|
| 37 | + 2.pass document content through a pipe |
| 38 | + cat <document.json> | validate --schema <schema.json> |
| 39 | +
|
| 40 | + 3.input document content manually, ended with ctrl+d(or your self-defined EOF keys) |
| 41 | + validate --schema <schema.json> |
| 42 | + [INPUT DOCUMENT CONTENT HERE] |
| 43 | +` |
| 44 | + |
| 45 | +func main() { |
| 46 | + var ( |
| 47 | + schemaFile string |
| 48 | + docFile string |
| 49 | + docData []byte |
| 50 | + err error |
| 51 | + exitCode int |
| 52 | + ) |
| 53 | + |
| 54 | + flag.Usage = func() { |
| 55 | + fmt.Fprintf(flag.CommandLine.Output(), "%s\n", usage) |
| 56 | + fmt.Fprintf(flag.CommandLine.Output(), "Usage of %s:\n", os.Args[0]) |
| 57 | + flag.PrintDefaults() |
| 58 | + } |
| 59 | + |
| 60 | + flag.StringVar(&schemaFile, "schema", "builtin", "JSON Schema to validate against") |
| 61 | + flag.Parse() |
| 62 | + |
| 63 | + if schemaFile != "" { |
| 64 | + scm, err := schema.Load(schemaFile) |
| 65 | + if err != nil { |
| 66 | + fmt.Fprintf(os.Stderr, "failed to load schema %s: %v\n", schemaFile, err) |
| 67 | + os.Exit(1) |
| 68 | + } |
| 69 | + schema.Set(scm) |
| 70 | + fmt.Printf("Validating against JSON schema %s...\n", schemaFile) |
| 71 | + } else { |
| 72 | + fmt.Printf("Validating against builtin JSON schema...\n") |
| 73 | + } |
| 74 | + |
| 75 | + docs := flag.Args() |
| 76 | + if len(docs) == 0 { |
| 77 | + docs = []string{"-"} |
| 78 | + } |
| 79 | + |
| 80 | + for _, docFile = range docs { |
| 81 | + if docFile == "" || docFile == "-" { |
| 82 | + docFile = "<stdin>" |
| 83 | + docData, err = ioutil.ReadAll(os.Stdin) |
| 84 | + if err != nil { |
| 85 | + fmt.Fprintf(os.Stderr, "failed to read document data from stdin: %v\n", err) |
| 86 | + os.Exit(1) |
| 87 | + } |
| 88 | + err = schema.ValidateData(docData) |
| 89 | + } else { |
| 90 | + err = schema.ValidateFile(docFile) |
| 91 | + } |
| 92 | + |
| 93 | + if err != nil { |
| 94 | + fmt.Fprintf(os.Stderr, "%s: validation failed:\n %v\n", docFile, err) |
| 95 | + exitCode = 1 |
| 96 | + } else { |
| 97 | + fmt.Printf("%s: document is valid.\n", docFile) |
| 98 | + } |
| 99 | + } |
| 100 | + |
| 101 | + os.Exit(exitCode) |
| 102 | +} |
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