wehub-resource-sync
e071084ebe
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80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
package resource
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import (
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"fmt"
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"strings"
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"github.com/urfave/cli/v2"
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"go-micro.dev/v6/config"
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"go-micro.dev/v6/config/source/env"
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)
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// configCommand exposes the config interface: get, dump.
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//
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// The CLI loads configuration from environment variables (the source
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// that makes sense without a running service). Keys use dot notation,
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// e.g. "database.host" reads from DATABASE_HOST.
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func configCommand() *cli.Command {
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return &cli.Command{
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Name: "config",
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Usage: "Read dynamic configuration (from environment)",
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Description: `Read dynamic configuration loaded from environment variables.
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Keys use dot notation: "database.host" maps to DATABASE_HOST.
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micro config get <key> Read a config value
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micro config dump Print the full config as JSON`,
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Subcommands: []*cli.Command{
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{
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Name: "get",
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Usage: "Read a config value",
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ArgsUsage: "<key>",
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Action: configGet,
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},
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{
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Name: "dump",
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Usage: "Print the full config",
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Action: configDump,
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},
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},
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}
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}
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func loadConfig() (config.Config, error) {
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conf, err := config.NewConfig()
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if err != nil {
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return nil, err
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}
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if err := conf.Load(env.NewSource()); err != nil {
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return nil, err
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}
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return conf, nil
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}
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func configGet(c *cli.Context) error {
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key := c.Args().First()
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if key == "" {
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return fail("usage: micro config get <key>")
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}
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conf, err := loadConfig()
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if err != nil {
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return fail("load config: %v", err)
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}
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path := strings.Split(key, ".")
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val, err := conf.Get(path...)
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if err != nil {
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return fail("get %q: %v", key, err)
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}
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fmt.Println(string(val.Bytes()))
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return nil
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}
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func configDump(c *cli.Context) error {
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conf, err := loadConfig()
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if err != nil {
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return fail("load config: %v", err)
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}
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fmt.Println(string(conf.Bytes()))
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return nil
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}
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