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package cmd
import (
"fmt"
"strings"
"golang.org/x/mod/semver"
)
// CmdVersion is `direnv version`
var CmdVersion = &Cmd{
Name: "version",
Desc: "prints the version or checks that direnv is older than VERSION_AT_LEAST.",
Args: []string{"[VERSION_AT_LEAST]"},
Aliases: []string{"--version"},
Action: actionSimple(func(_ Env, args []string) error {
semVersion := ensureVPrefixed(version)
if len(args) > 1 {
atLeast := ensureVPrefixed(args[1])
if !semver.IsValid(atLeast) {
return fmt.Errorf("%s is not a valid semver version", atLeast)
}
cmp := semver.Compare(semVersion, atLeast)
if cmp < 0 {
return fmt.Errorf("current version %s is older than the desired version %s", semVersion, atLeast)
}
} else {
fmt.Println(version)
}
return nil
}),
}
func ensureVPrefixed(version string) string {
if !strings.HasPrefix(version, "v") {
return "v" + version
}
return version
}
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