123 lines
2.7 KiB
Go
123 lines
2.7 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"github.com/mattermost/mattermost-server/model"
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"github.com/pkg/errors"
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)
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const pluginIDGoFileTemplate = `package main
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var manifest = struct {
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ID string
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Version string
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}{
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ID: "%s",
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Version: "%s",
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}
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`
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const pluginIDJSFileTemplate = `export const id = '%s';
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export const version = '%s';
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`
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func main() {
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if len(os.Args) <= 1 {
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panic("no cmd specified")
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}
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manifest, err := findManifest()
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if err != nil {
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panic("failed to find manifest: " + err.Error())
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}
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cmd := os.Args[1]
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switch cmd {
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case "id":
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dumpPluginID(manifest)
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case "version":
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dumpPluginVersion(manifest)
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case "has_server":
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if manifest.HasServer() {
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fmt.Printf("true")
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}
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case "has_webapp":
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if manifest.HasWebapp() {
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fmt.Printf("true")
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}
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case "apply":
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if err := applyManifest(manifest); err != nil {
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panic("failed to apply manifest: " + err.Error())
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}
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default:
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panic("unrecognized command: " + cmd)
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}
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}
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func findManifest() (*model.Manifest, error) {
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_, manifestFilePath, err := model.FindManifest(".")
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if err != nil {
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return nil, errors.Wrap(err, "failed to find manifest in current working directory")
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}
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manifestFile, err := os.Open(manifestFilePath)
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if err != nil {
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return nil, errors.Wrapf(err, "failed to open %s", manifestFilePath)
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}
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defer manifestFile.Close()
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// Re-decode the manifest, disallowing unknown fields. When we write the manifest back out,
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// we don't want to accidentally clobber anything we won't preserve.
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var manifest model.Manifest
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decoder := json.NewDecoder(manifestFile)
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decoder.DisallowUnknownFields()
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if err = decoder.Decode(&manifest); err != nil {
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return nil, errors.Wrap(err, "failed to parse manifest")
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}
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return &manifest, nil
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}
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// dumpPluginId writes the plugin id from the given manifest to standard out
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func dumpPluginID(manifest *model.Manifest) {
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fmt.Printf("%s", manifest.Id)
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}
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// dumpPluginVersion writes the plugin version from the given manifest to standard out
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func dumpPluginVersion(manifest *model.Manifest) {
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fmt.Printf("%s", manifest.Version)
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}
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// applyManifest propagates the plugin_id into the server and webapp folders, as necessary
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func applyManifest(manifest *model.Manifest) error {
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if manifest.HasServer() {
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if err := ioutil.WriteFile(
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"server/manifest.go",
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[]byte(fmt.Sprintf(pluginIDGoFileTemplate, manifest.Id, manifest.Version)),
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0644,
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); err != nil {
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return errors.Wrap(err, "failed to write server/manifest.go")
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}
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}
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if manifest.HasWebapp() {
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if err := ioutil.WriteFile(
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"webapp/src/manifest.js",
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[]byte(fmt.Sprintf(pluginIDJSFileTemplate, manifest.Id, manifest.Version)),
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0644,
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); err != nil {
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return errors.Wrap(err, "failed to open webapp/src/manifest.js")
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}
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}
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return nil
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}
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