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66a16a67fd
* with sb build app * test nested jar support * pin jdk version during parse test (but dont compare version)
102 lines
2.6 KiB
Go
102 lines
2.6 KiB
Go
package java
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import (
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"bufio"
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"fmt"
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"io"
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"strings"
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"github.com/anchore/imgbom/imgbom/pkg"
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"github.com/mitchellh/mapstructure"
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)
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const manifestPath = "META-INF/MANIFEST.MF"
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func parseJavaManifest(reader io.Reader) (*pkg.JavaManifest, error) {
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var manifest pkg.JavaManifest
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manifestMap := make(map[string]string)
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scanner := bufio.NewScanner(reader)
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var lastKey string
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for scanner.Scan() {
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line := scanner.Text()
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// ignore empty lines
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if strings.TrimSpace(line) == "" {
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continue
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}
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if line[0] == ' ' {
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// this is a continuation
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if lastKey == "" {
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return nil, fmt.Errorf("found continuation with no previous key (%s)", line)
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}
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manifestMap[lastKey] += strings.TrimSpace(line)
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} else {
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// this is a new key-value pair
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idx := strings.Index(line, ":")
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if idx == -1 {
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return nil, fmt.Errorf("unable to split java manifest key-value pairs: %q", line)
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}
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key := strings.TrimSpace(line[0:idx])
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value := strings.TrimSpace(line[idx+1:])
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manifestMap[key] = value
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// keep track of key for future continuations
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lastKey = key
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}
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}
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if err := scanner.Err(); err != nil {
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return nil, fmt.Errorf("unable to read java manifest: %w", err)
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}
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if err := mapstructure.Decode(manifestMap, &manifest); err != nil {
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return nil, fmt.Errorf("unable to parse java manifest: %w", err)
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}
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// clean select fields
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if strings.Trim(manifest.ImplVersion, " ") != "" {
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// transform versions with dates attached to just versions (e.g. "1.3 2244 October 5 2008" --> "1.3")
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manifest.ImplVersion = strings.Split(manifest.ImplVersion, " ")[0]
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}
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return &manifest, nil
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}
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func selectName(manifest *pkg.JavaManifest, filenameObj archiveFilename) string {
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var name string
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switch {
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case filenameObj.name() != "":
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name = filenameObj.name()
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case manifest.Name != "":
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// Manifest original spec...
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name = manifest.Name
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case manifest.Extra["Bundle-Name"] != "":
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// BND tooling...
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name = manifest.Extra["Bundle-Name"]
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case manifest.Extra["Short-Name"] != "":
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// Jenkins...
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name = manifest.Extra["Short-Name"]
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case manifest.Extra["Extension-Name"] != "":
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// Jenkins...
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name = manifest.Extra["Extension-Name"]
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}
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return name
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}
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func selectVersion(manifest *pkg.JavaManifest, filenameObj archiveFilename) string {
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var version string
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switch {
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case manifest.ImplVersion != "":
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version = manifest.ImplVersion
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case filenameObj.version() != "":
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version = filenameObj.version()
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case manifest.SpecVersion != "":
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version = manifest.SpecVersion
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case manifest.Extra["Plugin-Version"] != "":
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version = manifest.Extra["Plugin-Version"]
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}
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return version
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}
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