unistack-org/micro-config-env
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support multiple env params for single value

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Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
Василий Толстов 2022-11-26 15:38:29 +03:00
parent 9ef42ec0e9
commit 3ac95bcf83
2 changed files with 108 additions and 11 deletions
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25
env.go
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@ -219,15 +219,16 @@ func (c *envConfig) setValues(ctx context.Context, valueOf reflect.Value) error
continue
}
tag, ok := field.Tag.Lookup(c.opts.StructTag)
tags, ok := field.Tag.Lookup(c.opts.StructTag)
if !ok {
continue
}
for _, tag := range strings.Split(tags, ",") {
if err := os.Setenv(tag, fmt.Sprintf("%v", value.Interface())); err != nil && !c.opts.AllowFail {
return err
}
}
}
return nil
}
@ -278,16 +279,24 @@ func fillValues(ctx context.Context, valueOf reflect.Value, structTag string) er
}
continue
}
tag, ok := field.Tag.Lookup(structTag)
if !ok {
continue
}
val, ok := os.LookupEnv(tag)
tags, ok := field.Tag.Lookup(structTag)
if !ok {
continue
}
if err := fillValue(ctx, value, val); err != nil {
var eval string
for _, tag := range strings.Split(tags, ",") {
if val, ok := os.LookupEnv(tag); !ok {
continue
} else {
eval = val
}
}
if eval == "" {
continue
}
if err := fillValue(ctx, value, eval); err != nil {
return err
}
}

90
env_test.go
View File

@ -11,7 +11,7 @@ import (
)
type Config struct {
StringValue string `env:"STRING_VALUE"`
StringValue string `env:"STRING_VALUE,STRING_VALUE2"`
BoolValue bool `env:"BOOL_VALUE"`
StringSlice []string `env:"STRING_SLICE"`
IntSlice []int `env:"INT_SLICE"`
@ -20,6 +20,14 @@ type Config struct {
}
func TestMerge(t *testing.T) {
defer func() {
for _, v := range []string{"STRING_VALUE", "BOOL_VALUE", "STRING_SLICE", "INT_SLICE", "MAP_STRING", "MAP_INT"} {
if err := os.Unsetenv(v); err != nil {
t.Fatal(err)
}
}
}()
ctx := context.Background()
type Nested struct {
Name string `env:"NAME_VALUE"`
@ -47,6 +55,9 @@ func TestMerge(t *testing.T) {
t.Fatal(err)
}
}()
if err != nil {
t.Fatal(err)
}
os.Setenv("NAME_VALUE", "after")
changes, err := w.Next()
@ -66,6 +77,14 @@ func TestMerge(t *testing.T) {
}
func TestLoad(t *testing.T) {
defer func() {
for _, v := range []string{"STRING_VALUE", "STRING_VALUE2", "BOOL_VALUE", "STRING_SLICE", "INT_SLICE", "MAP_STRING", "MAP_INT"} {
if err := os.Unsetenv(v); err != nil {
t.Fatal(err)
}
}
}()
ctx := context.Background()
conf := &Config{StringValue: "before_load"}
cfg := NewConfig(config.Struct(conf))
@ -111,9 +130,23 @@ func TestLoad(t *testing.T) {
if len(conf.MapIntValue) != 2 {
t.Fatalf("something wrong with env config: %#+v", conf.MapIntValue)
}
for _, v := range []string{"STRING_VALUE", "STRING_VALUE2", "BOOL_VALUE", "STRING_SLICE", "INT_SLICE", "MAP_STRING", "MAP_INT"} {
if err := os.Unsetenv(v); err != nil {
t.Fatal(err)
}
}
}
func TestSave(t *testing.T) {
defer func() {
for _, v := range []string{"STRING_VALUE", "STRING_VALUE2", "BOOL_VALUE", "STRING_SLICE", "INT_SLICE", "MAP_STRING", "MAP_INT"} {
if err := os.Unsetenv(v); err != nil {
t.Fatal(err)
}
}
}()
ctx := context.Background()
conf := &Config{StringValue: "MICRO_CONFIG_ENV"}
cfg := NewConfig(config.Struct(conf))
@ -149,4 +182,59 @@ func TestSave(t *testing.T) {
t.Fatalf("env value %s=%s set", tv, v)
}
}
for _, v := range []string{"STRING_VALUE", "STRING_VALUE2", "BOOL_VALUE", "STRING_SLICE", "INT_SLICE", "MAP_STRING", "MAP_INT"} {
if err := os.Unsetenv(v); err != nil {
t.Fatal(err)
}
}
}
func TestLoadMultiple(t *testing.T) {
defer func() {
for _, v := range []string{"STRING_VALUE", "STRING_VALUE2", "BOOL_VALUE", "STRING_SLICE", "INT_SLICE", "MAP_STRING", "MAP_INT"} {
if err := os.Unsetenv(v); err != nil {
t.Fatal(err)
}
}
}()
ctx := context.Background()
conf := &Config{StringValue: "before_load"}
cfg := NewConfig(config.Struct(conf))
if err := cfg.Init(); err != nil {
t.Fatal(err)
}
if err := cfg.Load(ctx, config.LoadOverride(true), config.LoadAppend(true)); err != nil {
t.Fatal(err)
}
if conf.StringValue != "before_load" {
t.Fatalf("something wrong with env config: %#+v", conf)
}
os.Setenv("STRING_VALUE", "STRING_VALUE1")
os.Setenv("STRING_VALUE2", "STRING_VALUE2")
defer func() {
for _, v := range []string{"STRING_VALUE", "STRING_VALUE2"} {
if err := os.Unsetenv(v); err != nil {
t.Fatal(err)
}
}
}()
if err := cfg.Load(ctx, config.LoadOverride(true), config.LoadAppend(true)); err != nil {
t.Fatal(err)
}
if conf.StringValue != "STRING_VALUE2" {
t.Fatalf("something wrong with env config: %#+v", conf)
}
for _, v := range []string{"STRING_VALUE", "STRING_VALUE2", "BOOL_VALUE", "STRING_SLICE", "INT_SLICE", "MAP_STRING", "MAP_INT"} {
if err := os.Unsetenv(v); err != nil {
t.Fatal(err)
}
}
}