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package main
import (
"fmt"
"os"
)
// CmdWatch is `direnv watch SHELL [PATH...]`
var CmdWatch = &Cmd{
Name: "watch",
Desc: "Adds a path to the list that direnv watches for changes",
Args: []string{"SHELL", "PATH..."},
Private: true,
Action: actionSimple(cmdWatchAction),
}
func cmdWatchAction(env Env, args []string) (err error) {
var shellName string
if len(args) < 2 {
return fmt.Errorf("a path is required to add to the list of watches")
}
if len(args) >= 2 {
shellName = args[1]
} else {
shellName = "bash"
}
shell := DetectShell(shellName)
if shell == nil {
return fmt.Errorf("unknown target shell '%s'", shellName)
}
watches := NewFileTimes()
watchString, ok := env[DIRENV_WATCHES]
if ok {
err = watches.Unmarshal(watchString)
if err != nil {
return
}
}
for _, arg := range args[2:] {
err = watches.Update(arg)
if err != nil {
return
}
}
e := make(ShellExport)
e.Add(DIRENV_WATCHES, watches.Marshal())
os.Stdout.WriteString(shell.Export(e))
return
}
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