mirror of
https://github.com/spf13/viper
synced 2024-06-17 01:09:10 +00:00
Restore performance for the simple case
``` BenchmarkGetBool-4 1021 481 -52.89% BenchmarkGet-4 879 403 -54.15% BenchmarkGetBoolFromMap-4 6.56 6.40 -2.44% benchmark old allocs new allocs delta BenchmarkGetBool-4 6 4 -33.33% BenchmarkGet-4 6 4 -33.33% BenchmarkGetBoolFromMap-4 0 0 +0.00% benchmark old bytes new bytes delta BenchmarkGetBool-4 113 49 -56.64% BenchmarkGet-4 112 48 -57.14% BenchmarkGetBoolFromMap-4 0 0 +0.00% ``` Fixes #249 Fixes https://github.com/spf13/hugo/issues/2536
This commit is contained in:
Bjørn Erik Pedersen
GitHub
parent
54b81535af
commit
51f23d1f1c
71
viper.go
71
viper.go
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@ -399,17 +399,42 @@ func (v *Viper) providerPathExists(p *defaultRemoteProvider) bool {
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return false
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}
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// searchMapForKey may end up traversing the map if the key references a nested
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// item (foo.bar), but will use a fast path for the common case.
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// Note: This assumes that the key given is already lowercase.
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func (v *Viper) searchMapForKey(source map[string]interface{}, lcaseKey string) interface{} {
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if !strings.Contains(lcaseKey, v.keyDelim) {
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v, ok := source[lcaseKey]
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if ok {
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return v
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}
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return nil
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}
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path := strings.Split(lcaseKey, v.keyDelim)
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return v.searchMap(source, path)
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}
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// searchMap recursively searches for a value for path in source map.
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// Returns nil if not found.
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// Note: This assumes that the path entries are lower cased.
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func (v *Viper) searchMap(source map[string]interface{}, path []string) interface{} {
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if len(path) == 0 {
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return source
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}
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// Fast path
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if len(path) == 1 {
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if v, ok := source[path[0]]; ok {
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return v
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}
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return nil
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}
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var ok bool
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var next interface{}
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for k, v := range source {
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if strings.ToLower(k) == strings.ToLower(path[0]) {
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if k == path[0] {
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ok = true
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next = v
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break
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@ -594,8 +619,8 @@ func (v *Viper) Get(key string) interface{} {
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valType := val
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if v.typeByDefValue {
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path := strings.Split(lcaseKey, v.keyDelim)
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defVal := v.searchMap(v.defaults, path)
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// TODO(bep) this branch isn't covered by a single test.
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defVal := v.searchMapForKey(v.defaults, lcaseKey)
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if defVal != nil {
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valType = defVal
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}
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@ -841,32 +866,39 @@ func (v *Viper) BindEnv(input ...string) error {
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// Viper will check in the following order:
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// flag, env, config file, key/value store, default.
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// Viper will check to see if an alias exists first.
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func (v *Viper) find(key string) interface{} {
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var val interface{}
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var exists bool
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// Note: this assumes a lower-cased key given.
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func (v *Viper) find(lcaseKey string) interface{} {
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var (
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val interface{}
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exists bool
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path = strings.Split(lcaseKey, v.keyDelim)
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nested = len(path) > 1
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)
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// compute the path through the nested maps to the nested value
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path := strings.Split(key, v.keyDelim)
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if shadow := v.isPathShadowedInDeepMap(path, castMapStringToMapInterface(v.aliases)); shadow != "" {
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if nested && v.isPathShadowedInDeepMap(path, castMapStringToMapInterface(v.aliases)) != "" {
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return nil
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}
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// if the requested key is an alias, then return the proper key
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key = v.realKey(key)
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// re-compute the path
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path = strings.Split(key, v.keyDelim)
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lcaseKey = v.realKey(lcaseKey)
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// Set() override first
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val = v.searchMap(v.override, path)
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val = v.searchMapForKey(v.override, lcaseKey)
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if val != nil {
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return val
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}
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if shadow := v.isPathShadowedInDeepMap(path, v.override); shadow != "" {
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path = strings.Split(lcaseKey, v.keyDelim)
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nested = len(path) > 1
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if nested && v.isPathShadowedInDeepMap(path, v.override) != "" {
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return nil
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}
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// PFlag override next
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flag, exists := v.pflags[key]
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flag, exists := v.pflags[lcaseKey]
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if exists && flag.HasChanged() {
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switch flag.ValueType() {
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case "int", "int8", "int16", "int32", "int64":
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@ -880,7 +912,8 @@ func (v *Viper) find(key string) interface{} {
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return flag.ValueString()
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}
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}
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if shadow := v.isPathShadowedInFlatMap(path, v.pflags); shadow != "" {
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if nested && v.isPathShadowedInFlatMap(path, v.pflags) != "" {
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return nil
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}
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@ -888,14 +921,14 @@ func (v *Viper) find(key string) interface{} {
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if v.automaticEnvApplied {
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// even if it hasn't been registered, if automaticEnv is used,
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// check any Get request
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if val = v.getEnv(v.mergeWithEnvPrefix(key)); val != "" {
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if val = v.getEnv(v.mergeWithEnvPrefix(lcaseKey)); val != "" {
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return val
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}
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if shadow := v.isPathShadowedInAutoEnv(path); shadow != "" {
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if nested && v.isPathShadowedInAutoEnv(path) != "" {
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return nil
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}
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}
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envkey, exists := v.env[key]
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envkey, exists := v.env[lcaseKey]
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if exists {
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if val = v.getEnv(envkey); val != "" {
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return val
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@ -934,7 +967,7 @@ func (v *Viper) find(key string) interface{} {
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// last chance: if no other value is returned and a flag does exist for the value,
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// get the flag's value even if the flag's value has not changed
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if flag, exists := v.pflags[key]; exists {
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if flag, exists := v.pflags[lcaseKey]; exists {
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switch flag.ValueType() {
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case "int", "int8", "int16", "int32", "int64":
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return cast.ToInt(flag.ValueString())
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102
viper_test.go
102
viper_test.go
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@ -18,6 +18,8 @@ import (
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"testing"
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"time"
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"github.com/spf13/cast"
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"github.com/spf13/pflag"
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"github.com/stretchr/testify/assert"
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)
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@ -131,12 +133,18 @@ func initConfigs() {
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unmarshalReader(remote, v.kvstore)
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}
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func initYAML() {
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func initConfig(typ, config string) {
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Reset()
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SetConfigType("yaml")
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r := bytes.NewReader(yamlExample)
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SetConfigType(typ)
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r := strings.NewReader(config)
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unmarshalReader(r, v.config)
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if err := unmarshalReader(r, v.config); err != nil {
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panic(err)
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}
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}
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func initYAML() {
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initConfig("yaml", string(yamlExample))
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}
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func initJSON() {
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@ -435,13 +443,8 @@ func TestAllKeys(t *testing.T) {
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assert.Equal(t, all, AllSettings())
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}
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func TestCaseInSensitive(t *testing.T) {
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assert.Equal(t, true, Get("hacker"))
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Set("Title", "Checking Case")
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assert.Equal(t, "Checking Case", Get("tItle"))
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}
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func TestAliasesOfAliases(t *testing.T) {
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Set("Title", "Checking Case")
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RegisterAlias("Foo", "Bar")
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RegisterAlias("Bar", "Title")
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assert.Equal(t, "Checking Case", Get("FOO"))
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@ -538,7 +541,6 @@ func TestBindPFlag(t *testing.T) {
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}
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func TestBoundCaseSensitivity(t *testing.T) {
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assert.Equal(t, "brown", Get("eyes"))
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BindEnv("eYEs", "TURTLE_EYES")
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@ -917,8 +919,19 @@ func TestSetConfigNameClearsFileCache(t *testing.T) {
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}
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func TestShadowedNestedValue(t *testing.T) {
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config := `name: steve
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clothing:
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jacket: leather
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trousers: denim
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pants:
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size: large
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`
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initConfig("yaml", config)
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assert.Equal(t, "steve", GetString("name"))
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polyester := "polyester"
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initYAML()
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SetDefault("clothing.shirt", polyester)
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SetDefault("clothing.jacket.price", 100)
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@ -942,18 +955,65 @@ func TestDotParameter(t *testing.T) {
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assert.Equal(t, expected, actual)
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}
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func TestGetBool(t *testing.T) {
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key := "BooleanKey"
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v = New()
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v.Set(key, true)
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if !v.GetBool(key) {
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t.Fatal("GetBool returned false")
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}
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if v.GetBool("NotFound") {
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t.Fatal("GetBool returned true")
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func TestCaseInSensitive(t *testing.T) {
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for _, config := range []struct {
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typ string
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content string
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}{
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{"yaml", `
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aBcD: 1
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eF:
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gH: 2
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iJk: 3
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Lm:
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nO: 4
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P:
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Q: 5
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R: 6
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`},
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{"json", `{
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"aBcD": 1,
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"eF": {
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"iJk": 3,
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"Lm": {
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"P": {
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"Q": 5,
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"R": 6
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},
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"nO": 4
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},
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"gH": 2
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}
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}`},
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{"toml", `aBcD = 1
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[eF]
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gH = 2
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iJk = 3
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[eF.Lm]
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nO = 4
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[eF.Lm.P]
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Q = 5
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R = 6
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`},
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} {
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doTestCaseInSensitive(t, config.typ, config.content)
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}
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}
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func doTestCaseInSensitive(t *testing.T, typ, config string) {
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initConfig(typ, config)
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Set("RfD", true)
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assert.Equal(t, true, Get("rfd"))
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assert.Equal(t, true, Get("rFD"))
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assert.Equal(t, 1, cast.ToInt(Get("abcd")))
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assert.Equal(t, 1, cast.ToInt(Get("Abcd")))
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assert.Equal(t, 2, cast.ToInt(Get("ef.gh")))
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assert.Equal(t, 3, cast.ToInt(Get("ef.ijk")))
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assert.Equal(t, 4, cast.ToInt(Get("ef.lm.no")))
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assert.Equal(t, 5, cast.ToInt(Get("ef.lm.p.q")))
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}
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func BenchmarkGetBool(b *testing.B) {
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key := "BenchmarkGetBool"
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v = New()
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