hugo/config/configLoader.go

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Add /config dir support This commit adds support for a configuration directory (default `config`). The different pieces in this puzzle are: * A new `--environment` (or `-e`) flag. This can also be set with the `HUGO_ENVIRONMENT` OS environment variable. The value for `environment` defaults to `production` when running `hugo` and `development` when running `hugo server`. You can set it to any value you want (e.g. `hugo server -e "Sensible Environment"`), but as it is used to load configuration from the file system, the letter case may be important. You can get this value in your templates with `{{ hugo.Environment }}`. * A new `--configDir` flag (defaults to `config` below your project). This can also be set with `HUGO_CONFIGDIR` OS environment variable. If the `configDir` exists, the configuration files will be read and merged on top of each other from left to right; the right-most value will win on duplicates. Given the example tree below: If `environment` is `production`, the left-most `config.toml` would be the one directly below the project (this can now be omitted if you want), and then `_default/config.toml` and finally `production/config.toml`. And since these will be merged, you can just provide the environment specific configuration setting in you production config, e.g. `enableGitInfo = true`. The order within the directories will be lexical (`config.toml` and then `params.toml`). ```bash config ├── _default │   ├── config.toml │   ├── languages.toml │   ├── menus │   │   ├── menus.en.toml │   │   └── menus.zh.toml │   └── params.toml ├── development │   └── params.toml └── production ├── config.toml └── params.toml ``` Some configuration maps support the language code in the filename (e.g. `menus.en.toml`): `menus` (`menu` also works) and `params`. Also note that the only folders with "a meaning" in the above listing is the top level directories below `config`. The `menus` sub folder is just added for better organization. We use `TOML` in the example above, but Hugo also supports `JSON` and `YAML` as configuration formats. These can be mixed. Fixes #5422
2018-11-15 08:28:02 +00:00
// Copyright 2018 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"path/filepath"
"strings"
Add /config dir support This commit adds support for a configuration directory (default `config`). The different pieces in this puzzle are: * A new `--environment` (or `-e`) flag. This can also be set with the `HUGO_ENVIRONMENT` OS environment variable. The value for `environment` defaults to `production` when running `hugo` and `development` when running `hugo server`. You can set it to any value you want (e.g. `hugo server -e "Sensible Environment"`), but as it is used to load configuration from the file system, the letter case may be important. You can get this value in your templates with `{{ hugo.Environment }}`. * A new `--configDir` flag (defaults to `config` below your project). This can also be set with `HUGO_CONFIGDIR` OS environment variable. If the `configDir` exists, the configuration files will be read and merged on top of each other from left to right; the right-most value will win on duplicates. Given the example tree below: If `environment` is `production`, the left-most `config.toml` would be the one directly below the project (this can now be omitted if you want), and then `_default/config.toml` and finally `production/config.toml`. And since these will be merged, you can just provide the environment specific configuration setting in you production config, e.g. `enableGitInfo = true`. The order within the directories will be lexical (`config.toml` and then `params.toml`). ```bash config ├── _default │   ├── config.toml │   ├── languages.toml │   ├── menus │   │   ├── menus.en.toml │   │   └── menus.zh.toml │   └── params.toml ├── development │   └── params.toml └── production ├── config.toml └── params.toml ``` Some configuration maps support the language code in the filename (e.g. `menus.en.toml`): `menus` (`menu` also works) and `params`. Also note that the only folders with "a meaning" in the above listing is the top level directories below `config`. The `menus` sub folder is just added for better organization. We use `TOML` in the example above, but Hugo also supports `JSON` and `YAML` as configuration formats. These can be mixed. Fixes #5422
2018-11-15 08:28:02 +00:00
"github.com/gohugoio/hugo/common/maps"
"github.com/gohugoio/hugo/parser/metadecoders"
"github.com/spf13/afero"
"github.com/spf13/viper"
)
var (
ValidConfigFileExtensions = []string{"toml", "yaml", "yml", "json"}
validConfigFileExtensionsMap map[string]bool = make(map[string]bool)
)
func init() {
for _, ext := range ValidConfigFileExtensions {
validConfigFileExtensionsMap[ext] = true
}
}
// IsValidConfigFilename returns whether filename is one of the supported
// config formats in Hugo.
func IsValidConfigFilename(filename string) bool {
ext := strings.ToLower(strings.TrimPrefix(filepath.Ext(filename), "."))
return validConfigFileExtensionsMap[ext]
}
Add /config dir support This commit adds support for a configuration directory (default `config`). The different pieces in this puzzle are: * A new `--environment` (or `-e`) flag. This can also be set with the `HUGO_ENVIRONMENT` OS environment variable. The value for `environment` defaults to `production` when running `hugo` and `development` when running `hugo server`. You can set it to any value you want (e.g. `hugo server -e "Sensible Environment"`), but as it is used to load configuration from the file system, the letter case may be important. You can get this value in your templates with `{{ hugo.Environment }}`. * A new `--configDir` flag (defaults to `config` below your project). This can also be set with `HUGO_CONFIGDIR` OS environment variable. If the `configDir` exists, the configuration files will be read and merged on top of each other from left to right; the right-most value will win on duplicates. Given the example tree below: If `environment` is `production`, the left-most `config.toml` would be the one directly below the project (this can now be omitted if you want), and then `_default/config.toml` and finally `production/config.toml`. And since these will be merged, you can just provide the environment specific configuration setting in you production config, e.g. `enableGitInfo = true`. The order within the directories will be lexical (`config.toml` and then `params.toml`). ```bash config ├── _default │   ├── config.toml │   ├── languages.toml │   ├── menus │   │   ├── menus.en.toml │   │   └── menus.zh.toml │   └── params.toml ├── development │   └── params.toml └── production ├── config.toml └── params.toml ``` Some configuration maps support the language code in the filename (e.g. `menus.en.toml`): `menus` (`menu` also works) and `params`. Also note that the only folders with "a meaning" in the above listing is the top level directories below `config`. The `menus` sub folder is just added for better organization. We use `TOML` in the example above, but Hugo also supports `JSON` and `YAML` as configuration formats. These can be mixed. Fixes #5422
2018-11-15 08:28:02 +00:00
// FromConfigString creates a config from the given YAML, JSON or TOML config. This is useful in tests.
func FromConfigString(config, configType string) (Provider, error) {
v := newViper()
m, err := readConfig(metadecoders.FormatFromString(configType), []byte(config))
if err != nil {
return nil, err
}
v.MergeConfigMap(m)
return v, nil
}
// FromFile loads the configuration from the given filename.
func FromFile(fs afero.Fs, filename string) (Provider, error) {
m, err := loadConfigFromFile(fs, filename)
if err != nil {
return nil, err
}
v := newViper()
err = v.MergeConfigMap(m)
if err != nil {
return nil, err
}
return v, nil
}
// FromFileToMap is the same as FromFile, but it returns the config values
// as a simple map.
func FromFileToMap(fs afero.Fs, filename string) (map[string]interface{}, error) {
return loadConfigFromFile(fs, filename)
}
func readConfig(format metadecoders.Format, data []byte) (map[string]interface{}, error) {
m, err := metadecoders.Default.UnmarshalToMap(data, format)
Add /config dir support This commit adds support for a configuration directory (default `config`). The different pieces in this puzzle are: * A new `--environment` (or `-e`) flag. This can also be set with the `HUGO_ENVIRONMENT` OS environment variable. The value for `environment` defaults to `production` when running `hugo` and `development` when running `hugo server`. You can set it to any value you want (e.g. `hugo server -e "Sensible Environment"`), but as it is used to load configuration from the file system, the letter case may be important. You can get this value in your templates with `{{ hugo.Environment }}`. * A new `--configDir` flag (defaults to `config` below your project). This can also be set with `HUGO_CONFIGDIR` OS environment variable. If the `configDir` exists, the configuration files will be read and merged on top of each other from left to right; the right-most value will win on duplicates. Given the example tree below: If `environment` is `production`, the left-most `config.toml` would be the one directly below the project (this can now be omitted if you want), and then `_default/config.toml` and finally `production/config.toml`. And since these will be merged, you can just provide the environment specific configuration setting in you production config, e.g. `enableGitInfo = true`. The order within the directories will be lexical (`config.toml` and then `params.toml`). ```bash config ├── _default │   ├── config.toml │   ├── languages.toml │   ├── menus │   │   ├── menus.en.toml │   │   └── menus.zh.toml │   └── params.toml ├── development │   └── params.toml └── production ├── config.toml └── params.toml ``` Some configuration maps support the language code in the filename (e.g. `menus.en.toml`): `menus` (`menu` also works) and `params`. Also note that the only folders with "a meaning" in the above listing is the top level directories below `config`. The `menus` sub folder is just added for better organization. We use `TOML` in the example above, but Hugo also supports `JSON` and `YAML` as configuration formats. These can be mixed. Fixes #5422
2018-11-15 08:28:02 +00:00
if err != nil {
return nil, err
}
RenameKeys(m)
return m, nil
}
func loadConfigFromFile(fs afero.Fs, filename string) (map[string]interface{}, error) {
m, err := metadecoders.Default.UnmarshalFileToMap(fs, filename)
Add /config dir support This commit adds support for a configuration directory (default `config`). The different pieces in this puzzle are: * A new `--environment` (or `-e`) flag. This can also be set with the `HUGO_ENVIRONMENT` OS environment variable. The value for `environment` defaults to `production` when running `hugo` and `development` when running `hugo server`. You can set it to any value you want (e.g. `hugo server -e "Sensible Environment"`), but as it is used to load configuration from the file system, the letter case may be important. You can get this value in your templates with `{{ hugo.Environment }}`. * A new `--configDir` flag (defaults to `config` below your project). This can also be set with `HUGO_CONFIGDIR` OS environment variable. If the `configDir` exists, the configuration files will be read and merged on top of each other from left to right; the right-most value will win on duplicates. Given the example tree below: If `environment` is `production`, the left-most `config.toml` would be the one directly below the project (this can now be omitted if you want), and then `_default/config.toml` and finally `production/config.toml`. And since these will be merged, you can just provide the environment specific configuration setting in you production config, e.g. `enableGitInfo = true`. The order within the directories will be lexical (`config.toml` and then `params.toml`). ```bash config ├── _default │   ├── config.toml │   ├── languages.toml │   ├── menus │   │   ├── menus.en.toml │   │   └── menus.zh.toml │   └── params.toml ├── development │   └── params.toml └── production ├── config.toml └── params.toml ``` Some configuration maps support the language code in the filename (e.g. `menus.en.toml`): `menus` (`menu` also works) and `params`. Also note that the only folders with "a meaning" in the above listing is the top level directories below `config`. The `menus` sub folder is just added for better organization. We use `TOML` in the example above, but Hugo also supports `JSON` and `YAML` as configuration formats. These can be mixed. Fixes #5422
2018-11-15 08:28:02 +00:00
if err != nil {
return nil, err
}
RenameKeys(m)
return m, nil
}
var keyAliases maps.KeyRenamer
func init() {
var err error
keyAliases, err = maps.NewKeyRenamer(
// Before 0.53 we used singular for "menu".
"{menu,languages/*/menu}", "menus",
)
if err != nil {
panic(err)
}
}
// RenameKeys renames config keys in m recursively according to a global Hugo
// alias definition.
func RenameKeys(m map[string]interface{}) {
keyAliases.Rename(m)
}
func newViper() *viper.Viper {
v := viper.New()
v.AutomaticEnv()
v.SetEnvPrefix("hugo")
return v
}