69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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// Example for: *json*, *tvsaver*
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// This example demonstrates loading an SPDX json from disk into memory,
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// and then re-saving it to a different file on disk in tag-value format .
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// Run project: go run examplejsontotv.go ../sample-docs/json/SPDXJSONExample-v2.2.spdx.json example.spdx
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package main
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import (
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"fmt"
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"os"
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spdx_json "github.com/spdx/tools-golang/json"
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"github.com/spdx/tools-golang/tvsaver"
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)
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func main() {
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// check that we've received the right number of arguments
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args := os.Args
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if len(args) != 3 {
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fmt.Printf("Usage: %v <json-file-in> <spdx-file-out>\n", args[0])
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fmt.Printf(" Load JSON file <json-file-in>, and\n")
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fmt.Printf(" save it out to <spdx-file-out>.\n")
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return
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}
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// open the SPDX file
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fileIn := args[1]
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r, err := os.Open(fileIn)
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if err != nil {
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fmt.Printf("Error while opening %v for reading: %v", fileIn, err)
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return
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}
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defer r.Close()
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// try to load the SPDX file's contents as a json file, version 2.2
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doc, err := spdx_json.Load2_2(r)
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if err != nil {
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fmt.Printf("Error while parsing %v: %v", args[1], err)
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return
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}
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// if we got here, the file is now loaded into memory.
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fmt.Printf("Successfully loaded %s\n", args[1])
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// we can now save it back to disk, using tvsaver.
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// create a new file for writing
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fileOut := args[2]
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w, err := os.Create(fileOut)
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if err != nil {
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fmt.Printf("Error while opening %v for writing: %v", fileOut, err)
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return
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}
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defer w.Close()
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// try to save the document to disk as an SPDX tag-value file, version 2.2
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err = tvsaver.Save2_2(doc, w)
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if err != nil {
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fmt.Printf("Error while saving %v: %v", fileOut, err)
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return
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}
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// it worked
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fmt.Printf("Successfully saved %s\n", fileOut)
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}
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