mirror of
https://github.com/go-sylixos/elvish.git
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a3f4384495
The elvdocs still use the old format (#elvdoc:fn or #elvdoc:var) for now, but will be changed to "fn" and "var" forms soon. Also remove the accidentally committed cmd/mvelvdoc. It has been used to perform the conversion automatically but is not supposed to be committed.
58 lines
941 B
Go
58 lines
941 B
Go
package eval
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import (
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"os"
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"os/exec"
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"src.elv.sh/pkg/eval/errs"
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)
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// Command and process control.
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// TODO(xiaq): Document "fg".
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func init() {
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addBuiltinFns(map[string]any{
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// Command resolution
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"external": external,
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"has-external": hasExternal,
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"search-external": searchExternal,
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// Process control
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"fg": fg,
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"exec": execFn,
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"exit": exit,
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})
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}
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func external(cmd string) Callable {
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return NewExternalCmd(cmd)
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}
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func hasExternal(cmd string) bool {
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_, err := exec.LookPath(cmd)
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return err == nil
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}
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func searchExternal(cmd string) (string, error) {
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return exec.LookPath(cmd)
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}
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// Can be overridden in tests.
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var osExit = os.Exit
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func exit(fm *Frame, codes ...int) error {
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code := 0
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switch len(codes) {
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case 0:
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case 1:
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code = codes[0]
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default:
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return errs.ArityMismatch{What: "arguments", ValidLow: 0, ValidHigh: 1, Actual: len(codes)}
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}
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fm.Evaler.PreExit()
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osExit(code)
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return nil
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}
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