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171 lines
4.5 KiB
171 lines
4.5 KiB
package commands
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"strconv"
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"testing"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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cfg "github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/libs/cli"
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tmos "github.com/tendermint/tendermint/libs/os"
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)
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// clearConfig clears env vars, the given root dir, and resets viper.
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func clearConfig(dir string) {
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if err := os.Unsetenv("TMHOME"); err != nil {
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panic(err)
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}
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if err := os.Unsetenv("TM_HOME"); err != nil {
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panic(err)
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}
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if err := os.RemoveAll(dir); err != nil {
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panic(err)
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}
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viper.Reset()
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config = cfg.DefaultConfig()
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}
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// prepare new rootCmd
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func testRootCmd() *cobra.Command {
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rootCmd := &cobra.Command{
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Use: RootCmd.Use,
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PersistentPreRunE: RootCmd.PersistentPreRunE,
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Run: func(cmd *cobra.Command, args []string) {},
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}
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registerFlagsRootCmd(rootCmd)
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var l string
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rootCmd.PersistentFlags().String("log", l, "Log")
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return rootCmd
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}
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func testSetup(rootDir string, args []string, env map[string]string) error {
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clearConfig(rootDir)
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rootCmd := testRootCmd()
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cmd := cli.PrepareBaseCmd(rootCmd, "TM", rootDir)
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// run with the args and env
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args = append([]string{rootCmd.Use}, args...)
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return cli.RunWithArgs(cmd, args, env)
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}
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func TestRootHome(t *testing.T) {
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defaultRoot := t.TempDir()
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newRoot := filepath.Join(defaultRoot, "something-else")
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cases := []struct {
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args []string
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env map[string]string
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root string
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}{
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{nil, nil, defaultRoot},
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{[]string{"--home", newRoot}, nil, newRoot},
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{nil, map[string]string{"TMHOME": newRoot}, newRoot},
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}
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for i, tc := range cases {
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idxString := strconv.Itoa(i)
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err := testSetup(defaultRoot, tc.args, tc.env)
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require.Nil(t, err, idxString)
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assert.Equal(t, tc.root, config.RootDir, idxString)
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assert.Equal(t, tc.root, config.P2P.RootDir, idxString)
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assert.Equal(t, tc.root, config.Consensus.RootDir, idxString)
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assert.Equal(t, tc.root, config.Mempool.RootDir, idxString)
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}
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}
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func TestRootFlagsEnv(t *testing.T) {
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// defaults
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defaults := cfg.DefaultConfig()
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defaultLogLvl := defaults.LogLevel
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cases := []struct {
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args []string
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env map[string]string
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logLevel string
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}{
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{[]string{"--log", "debug"}, nil, defaultLogLvl}, // wrong flag
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{[]string{"--log-level", "debug"}, nil, "debug"}, // right flag
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{nil, map[string]string{"TM_LOW": "debug"}, defaultLogLvl}, // wrong env flag
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{nil, map[string]string{"MT_LOG_LEVEL": "debug"}, defaultLogLvl}, // wrong env prefix
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{nil, map[string]string{"TM_LOG_LEVEL": "debug"}, "debug"}, // right env
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}
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defaultRoot := t.TempDir()
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for i, tc := range cases {
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idxString := strconv.Itoa(i)
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err := testSetup(defaultRoot, tc.args, tc.env)
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require.Nil(t, err, idxString)
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assert.Equal(t, tc.logLevel, config.LogLevel, idxString)
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}
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}
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func TestRootConfig(t *testing.T) {
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// write non-default config
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nonDefaultLogLvl := "debug"
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cvals := map[string]string{
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"log-level": nonDefaultLogLvl,
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}
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cases := []struct {
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args []string
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env map[string]string
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logLvl string
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}{
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{nil, nil, nonDefaultLogLvl}, // should load config
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{[]string{"--log-level=info"}, nil, "info"}, // flag over rides
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{nil, map[string]string{"TM_LOG_LEVEL": "info"}, "info"}, // env over rides
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}
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for i, tc := range cases {
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defaultRoot := t.TempDir()
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idxString := strconv.Itoa(i)
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clearConfig(defaultRoot)
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// XXX: path must match cfg.defaultConfigPath
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configFilePath := filepath.Join(defaultRoot, "config")
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err := tmos.EnsureDir(configFilePath, 0700)
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require.Nil(t, err)
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// write the non-defaults to a different path
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// TODO: support writing sub configs so we can test that too
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err = WriteConfigVals(configFilePath, cvals)
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require.Nil(t, err)
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rootCmd := testRootCmd()
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cmd := cli.PrepareBaseCmd(rootCmd, "TM", defaultRoot)
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// run with the args and env
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tc.args = append([]string{rootCmd.Use}, tc.args...)
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err = cli.RunWithArgs(cmd, tc.args, tc.env)
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require.Nil(t, err, idxString)
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assert.Equal(t, tc.logLvl, config.LogLevel, idxString)
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}
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}
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// WriteConfigVals writes a toml file with the given values.
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// It returns an error if writing was impossible.
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func WriteConfigVals(dir string, vals map[string]string) error {
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data := ""
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for k, v := range vals {
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data += fmt.Sprintf("%s = \"%s\"\n", k, v)
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}
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cfile := filepath.Join(dir, "config.toml")
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return ioutil.WriteFile(cfile, []byte(data), 0600)
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}
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