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Merge pull request #1086 from akramarenkov/fix-altsrc-nil-source-flag

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Fix bug 'Unable to load file' in altsrc
This commit is contained in:
lynn [they] 2020-03-30 16:25:52 -07:00 committed by GitHub
commit 39f9fbd723
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 23 additions and 5 deletions
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6
altsrc/default_input_source.go Normal file
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@ -0,0 +1,6 @@
package altsrc
// defaultInputSource creates a default InputSourceContext.
func defaultInputSource() (InputSourceContext, error) {
return &MapInputSource{file: "", valueMap: map[interface{}]interface{}{}}, nil
}

6
altsrc/json_source_context.go
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@ -17,7 +17,11 @@ import (
// by the given flag.
func NewJSONSourceFromFlagFunc(flag string) func(c *cli.Context) (InputSourceContext, error) {
return func(context *cli.Context) (InputSourceContext, error) {
return NewJSONSourceFromFile(context.String(flag))
if context.IsSet(flag) {
return NewJSONSourceFromFile(context.String(flag))
}
return defaultInputSource()
}
}

8
altsrc/toml_file_loader.go
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@ -87,8 +87,12 @@ func NewTomlSourceFromFile(file string) (InputSourceContext, error) {
// NewTomlSourceFromFlagFunc creates a new TOML InputSourceContext from a provided flag name and source context.
func NewTomlSourceFromFlagFunc(flagFileName string) func(context *cli.Context) (InputSourceContext, error) {
return func(context *cli.Context) (InputSourceContext, error) {
filePath := context.String(flagFileName)
return NewTomlSourceFromFile(filePath)
if context.IsSet(flagFileName) {
filePath := context.String(flagFileName)
return NewTomlSourceFromFile(filePath)
}
return defaultInputSource()
}
}

8
altsrc/yaml_file_loader.go
View File

@ -33,8 +33,12 @@ func NewYamlSourceFromFile(file string) (InputSourceContext, error) {
// NewYamlSourceFromFlagFunc creates a new Yaml InputSourceContext from a provided flag name and source context.
func NewYamlSourceFromFlagFunc(flagFileName string) func(context *cli.Context) (InputSourceContext, error) {
return func(context *cli.Context) (InputSourceContext, error) {
filePath := context.String(flagFileName)
return NewYamlSourceFromFile(filePath)
if context.IsSet(flagFileName) {
filePath := context.String(flagFileName)
return NewYamlSourceFromFile(filePath)
}
return defaultInputSource()
}
}