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test: add examples for finder
Signed-off-by: Mark Sagi-Kazar <mark.sagikazar@gmail.com>
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75
finder_example_test.go
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75
finder_example_test.go
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//go:build viper_finder
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package viper_test
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import (
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"fmt"
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"github.com/sagikazarmark/locafero"
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"github.com/spf13/afero"
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"github.com/spf13/viper"
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)
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func ExampleFinder() {
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fs := afero.NewMemMapFs()
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fs.Mkdir("/home/user", 0o777)
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f, _ := fs.Create("/home/user/myapp.yaml")
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f.WriteString("foo: bar")
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f.Close()
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// HCL will have a "lower" priority in the search order
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fs.Create("/home/user/myapp.hcl")
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finder := locafero.Finder{
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Paths: []string{"/home/user"},
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Names: locafero.NameWithExtensions("myapp", viper.SupportedExts...),
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Type: locafero.FileTypeFile, // This is important!
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}
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v := viper.NewWithOptions(viper.WithFinder(finder))
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v.SetFs(fs)
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v.ReadInConfig()
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fmt.Println(v.GetString("foo"))
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// Output:
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// bar
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}
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func ExampleFinders() {
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fs := afero.NewMemMapFs()
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fs.Mkdir("/home/user", 0o777)
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f, _ := fs.Create("/home/user/myapp.yaml")
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f.WriteString("foo: bar")
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f.Close()
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fs.Mkdir("/etc/myapp", 0o777)
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fs.Create("/etc/myapp/config.yaml")
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// Combine multiple finders to search for files in multiple locations with different criteria
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finder := viper.Finders(
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locafero.Finder{
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Paths: []string{"/home/user"},
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Names: locafero.NameWithExtensions("myapp", viper.SupportedExts...),
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Type: locafero.FileTypeFile, // This is important!
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},
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locafero.Finder{
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Paths: []string{"/etc/myapp"},
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Names: []string{"config.yaml"}, // Only accept YAML files in the system config directory
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Type: locafero.FileTypeFile, // This is important!
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},
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)
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v := viper.NewWithOptions(viper.WithFinder(finder))
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v.SetFs(fs)
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v.ReadInConfig()
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fmt.Println(v.GetString("foo"))
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// Output:
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// bar
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}
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