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Add MergeConfigMap

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Fixes #605
This commit is contained in:
Bjørn Erik Pedersen 2018-12-05 15:19:25 +01:00
parent 06c7c0d9b3
commit 3535c75fa8
4 changed files with 51 additions and 3 deletions
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2
go.mod
View file

@ -6,10 +6,12 @@ require (
github.com/magiconair/properties v1.8.0
github.com/mitchellh/mapstructure v1.0.0
github.com/pelletier/go-toml v1.2.0
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/spf13/afero v1.1.2
github.com/spf13/cast v1.2.0
github.com/spf13/jwalterweatherman v1.0.0
github.com/spf13/pflag v1.0.2
github.com/stretchr/testify v1.2.2
golang.org/x/sys v0.0.0-20180906133057-8cf3aee42992 // indirect
golang.org/x/text v0.3.0 // indirect
gopkg.in/yaml.v2 v2.2.1

5
go.sum
View file

@ -1,3 +1,4 @@
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
@ -9,6 +10,8 @@ github.com/mitchellh/mapstructure v1.0.0 h1:vVpGvMXJPqSDh2VYHF7gsfQj8Ncx+Xw5Y1KH
github.com/mitchellh/mapstructure v1.0.0/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
github.com/pelletier/go-toml v1.2.0 h1:T5zMGML61Wp+FlcbWjRDT7yAxhJNAiPPLOFECq181zc=
github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/spf13/afero v1.1.2 h1:m8/z1t7/fwjysjQRYbP0RD+bUIF/8tJwPdEZsI83ACI=
github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
github.com/spf13/cast v1.2.0 h1:HHl1DSRbEQN2i8tJmtS6ViPyHx35+p51amrdsiTCrkg=
@ -17,6 +20,8 @@ github.com/spf13/jwalterweatherman v1.0.0 h1:XHEdyB+EcvlqZamSM4ZOMGlc93t6AcsBEu9
github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
github.com/spf13/pflag v1.0.2 h1:Fy0orTDgHdbnzHcsOgfCN4LtHf0ec3wwtiwJqwvf3Gc=
github.com/spf13/pflag v1.0.2/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
golang.org/x/sys v0.0.0-20180906133057-8cf3aee42992 h1:BH3eQWeGbwRU2+wxxuuPOdFBmaiBH81O8BugSjHeTFg=
golang.org/x/sys v0.0.0-20180906133057-8cf3aee42992/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=

12
viper.go
View file

@ -1259,13 +1259,19 @@ func (v *Viper) ReadConfig(in io.Reader) error {
// MergeConfig merges a new configuration with an existing config.
func MergeConfig(in io.Reader) error { return v.MergeConfig(in) }
func (v *Viper) MergeConfig(in io.Reader) error {
if v.config == nil {
v.config = make(map[string]interface{})
}
cfg := make(map[string]interface{})
if err := v.unmarshalReader(in, cfg); err != nil {
return err
}
return v.MergeConfigMap(cfg)
}
// MergeConfigMap merges the configuration from the map given with an existing config.
func MergeConfigMap(cfg map[string]interface{}) error { return v.MergeConfigMap(cfg) }
func (v *Viper) MergeConfigMap(cfg map[string]interface{}) error {
if v.config == nil {
v.config = make(map[string]interface{})
}
mergeMaps(cfg, v.config, nil)
return nil
}

35
viper_test.go
View file

@ -1230,6 +1230,41 @@ func TestMergeConfigNoMerge(t *testing.T) {
}
}
func TestMergeConfigMap(t *testing.T) {
v := New()
v.SetConfigType("yml")
if err := v.ReadConfig(bytes.NewBuffer(yamlMergeExampleTgt)); err != nil {
t.Fatal(err)
}
assert := func(i int) {
large := v.GetInt("hello.lagrenum")
pop := v.GetInt("hello.pop")
if large != 765432101234567 {
t.Fatal("Got large num:", large)
}
if pop != i {
t.Fatal("Got pop:", pop)
}
}
assert(37890)
update := map[string]interface{}{
"hello": map[string]interface{}{
"pop": 1234,
},
}
if err := v.MergeConfigMap(update); err != nil {
t.Fatal(err)
}
assert(1234)
}
func TestUnmarshalingWithAliases(t *testing.T) {
v := New()
v.SetDefault("ID", 1)