sneak
4d45aa4ca3
Bring back the in-progress viper and go-homedir configuration loading from the original root command as a persistent pre-run on the root command, with a --config flag and a config line in sutil info. Restore the exported main.Version with a nolint directive instead of renaming it. Export CGO_ENABLED=0 from the Makefile, drop -race from make test, and remove the C toolchain from the Docker builder stage.
65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
package cli
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import (
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"errors"
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"fmt"
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"io"
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"runtime/debug"
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"strings"
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"github.com/spf13/cobra"
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)
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// ErrNoBuildInfo is returned by `sutil info` when the binary carries no
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// Go build information, which only happens for binaries not built with
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// module support.
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var ErrNoBuildInfo = errors.New("sutil: no build information in this binary")
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// noConfigFile is what `sutil info` prints when no config file was loaded.
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const noConfigFile = "(none)"
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// newInfoCommand returns `sutil info`, which prints the build version, the
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// Go toolchain version, the module path, the configuration file in use,
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// and the VCS metadata recorded by the Go toolchain at build time.
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func newInfoCommand(a *app) *cobra.Command {
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return &cobra.Command{
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Use: "info",
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Short: "Print build information",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, _ []string) error {
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return writeBuildInfo(
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cmd.OutOrStdout(), a.params.Version, a.configFileUsed(),
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)
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},
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}
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}
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// writeBuildInfo writes one "key: value" line per fact to w.
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func writeBuildInfo(w io.Writer, version, configFile string) error {
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info, ok := debug.ReadBuildInfo()
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if !ok {
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return ErrNoBuildInfo
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}
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if configFile == "" {
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configFile = noConfigFile
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}
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lines := []string{
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"version: " + version,
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"go: " + info.GoVersion,
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"module: " + info.Main.Path,
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"config: " + configFile,
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}
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for _, setting := range info.Settings {
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if strings.HasPrefix(setting.Key, "vcs.") {
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lines = append(lines, setting.Key+": "+setting.Value)
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}
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}
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_, err := fmt.Fprintln(w, strings.Join(lines, "\n"))
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return err
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}
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