58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
package state
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import (
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"encoding/json"
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"io/ioutil"
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"os"
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"path"
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"strings"
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)
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// Persistent state used by the CLI to track runtime information
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// between calls.
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type State struct {
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GlobalVersion string `json:"globalVersion"`
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}
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func GetStatePath(pathSegments ...string) string {
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home, _ := os.UserHomeDir()
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userDefinedRoot, found := os.LookupEnv("V_ROOT")
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root := path.Join(home, ".v")
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if found {
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root = userDefinedRoot
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}
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allSegments := []string{root}
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allSegments = append(allSegments, pathSegments...)
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return path.Join(allSegments...)
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}
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func ReadState() State {
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c, _ := ioutil.ReadFile(GetStatePath("state.json"))
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state := State{}
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json.Unmarshal(c, &state)
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return state
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}
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func WriteState(version string) {
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state := State{GlobalVersion: version}
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d, _ := json.Marshal(state)
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ioutil.WriteFile(GetStatePath("state.json"), d, 0750)
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}
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func GetAvailableVersions() []string {
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entries, _ := os.ReadDir(GetStatePath("runtimes"))
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versions := []string{}
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for _, d := range entries {
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versions = append(versions, strings.TrimPrefix(d.Name(), "py-"))
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}
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return versions
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}
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