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[#3896bk] Support wildcards in yaml/json configs

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This commit is contained in:
Dane Everitt 2019-12-01 11:54:33 -08:00
parent cae0c70b0f
commit 1a4bdc87c9
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GPG Key ID: EEA66103B3D71F53
1 changed files with 28 additions and 4 deletions
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32
parser/parser.go
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@ -121,8 +121,15 @@ func readFileBytes(path string) ([]byte, error) {
return ioutil.ReadAll(file) return ioutil.ReadAll(file)
} }
// Iterate over an unstructured JSON/YAML/etc. interface and set all of the required key/value pairs // Iterate over an unstructured JSON/YAML/etc. interface and set all of the required
// for the configuration file. // key/value pairs for the configuration file.
//
// We need to support wildcard characters in key searches, this allows you to make
// modifications to multiple keys at once, especially useful for games with multiple
// configurations per-world (such as Spigot and Bungeecord) where we'll need to make
// adjustments to the bind address for the user.
//
// This does not currently support nested matches. container.*.foo.*.bar will not work.
func (f *ConfigurationFile) IterateOverJson(data []byte) (*gabs.Container, error) { func (f *ConfigurationFile) IterateOverJson(data []byte) (*gabs.Container, error) {
parsed, err := gabs.ParseJSON(data) parsed, err := gabs.ParseJSON(data)
if err != nil { if err != nil {
@ -135,8 +142,25 @@ func (f *ConfigurationFile) IterateOverJson(data []byte) (*gabs.Container, error
return nil, err return nil, err
} }
if _, err = parsed.SetP(value, v.Match); err != nil { // Check for a wildcard character, and if found split the key on that value to
return nil, err // begin doing a search and replace in the data.
if strings.Contains(v.Match, ".*") {
parts := strings.SplitN(v.Match, ".*", 2)
// Iterate over each matched child and set the remaining path to the value
// that is passed through in the loop.
//
// If the child is a null value, nothing will happen. Seems reasonable as of the
// time this code is being written.
for _, child := range parsed.Path(strings.Trim(parts[0], ".")).Children() {
if _, err := child.SetP(value, strings.Trim(parts[1], ".")); err != nil {
return nil, err
}
}
} else {
if _, err = parsed.SetP(value, v.Match); err != nil {
return nil, err
}
} }
} }