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termstatus: detect and respect dumb terminals on Unix 

Signed-off-by: Igor Fedorenko <igor@ifedorenko.com>
This commit is contained in:
Igor Fedorenko 2018-09-20 09:50:29 -04:00
parent 6bc99ce451
commit 541d232f1c
1 changed files with 10 additions and 1 deletions
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11
internal/ui/termstatus/terminal_unix.go
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@ -4,6 +4,7 @@ package termstatus
import ( import (
"io" "io"
"os"
"golang.org/x/sys/unix" "golang.org/x/sys/unix"
@ -24,7 +25,15 @@ func moveCursorUp(wr io.Writer, fd uintptr) func(io.Writer, uintptr, int) {
// canUpdateStatus returns true if status lines can be printed, the process // canUpdateStatus returns true if status lines can be printed, the process
// output is not redirected to a file or pipe. // output is not redirected to a file or pipe.
func canUpdateStatus(fd uintptr) bool { func canUpdateStatus(fd uintptr) bool {
return isatty.IsTerminal(fd) if !isatty.IsTerminal(fd) {
return false
}
term := os.Getenv("TERM")
if term == "" {
return false
}
// TODO actually read termcap db and detect if terminal supports what we need
return term != "dumb"
} }
// getTermSize returns the dimensions of the given terminal. // getTermSize returns the dimensions of the given terminal.