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@ -17,6 +17,7 @@ limitations under the License.
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package chartutil
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package chartutil
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import (
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import (
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"errors"
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"fmt"
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"fmt"
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"io"
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"io"
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"io/ioutil"
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"io/ioutil"
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@ -387,10 +388,16 @@ func istable(v interface{}) bool {
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return ok
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return ok
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}
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}
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// PathValue takes a yaml path with . notation and returns the value if exists
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// PathValue takes a path that traverses a YAML structure and returns the value at the end of that path.
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// The path starts at the root of the YAML structure and is comprised of YAML keys separated by periods.
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// Given the following YAML data the value at path "chapter.one.title" is "Loomings".
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//
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// chapter:
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// one:
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// title: "Loomings"
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func (v Values) PathValue(ypath string) (interface{}, error) {
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func (v Values) PathValue(ypath string) (interface{}, error) {
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if len(ypath) == 0 {
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if len(ypath) == 0 {
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return nil, fmt.Errorf("yaml path string cannot be zero length")
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return nil, errors.New("YAML path string cannot be zero length")
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}
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}
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yps := strings.Split(ypath, ".")
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yps := strings.Split(ypath, ".")
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if len(yps) == 1 {
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if len(yps) == 1 {
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