ui/cli: Fix tty output

dbg() calls in flashrom_probe() were writing to a "not a tty" file
because stdin is redirected.

1 files changed, 13 insertions, 11 deletions

diff --git a/src/ui/cli.sh b/src/ui/cli.sh
index 9262cc1..8bc18a1 100644
--- a/src/ui/cli.sh
+++ b/src/ui/cli.sh
@@ -15,9 +15,11 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+cli_tty=''
+
 cli_init_ui()
 {
-	: Nothing to do.
+	cli_tty="$(tty)"
 }
 
 cli_exit_ui()
@@ -35,7 +37,7 @@ cli_dbg()
 	local fmt="${1}"
 	shift 1
 
-	printf "Debug: ${fmt}\n" "${@}" >"$(tty)"
+	printf "Debug: ${fmt}\n" "${@}" >"${cli_tty}"
 }
 
 cli_info()
@@ -43,7 +45,7 @@ cli_info()
 	local fmt="${1}"
 	shift 1
 
-	printf "${fmt}\n" "${@}" >"$(tty)"
+	printf "${fmt}\n" "${@}" >"${cli_tty}"
 }
 
 cli_warn()
@@ -51,7 +53,7 @@ cli_warn()
 	local fmt="${1}"
 	shift 1
 
-	printf "Warning: ${fmt}\n" "${@}" >"$(tty)"
+	printf "Warning: ${fmt}\n" "${@}" >"${cli_tty}"
 }
 
 cli_err()
@@ -59,7 +61,7 @@ cli_err()
 	local fmt="${1}"
 	shift 1
 
-	printf "Error: ${fmt}\n" "${@}" >"$(tty)"
+	printf "Error: ${fmt}\n" "${@}" >"${cli_tty}"
 }
 
 cli_show_menu()
@@ -70,19 +72,19 @@ cli_show_menu()
 	local l=
 	local label=
 
-	printf '%s\n' "${title}" >"$(tty)"
-	{ printf '%s\n' "${title}" | sed 's/./-/g'; } >"$(tty)"
+	printf '%s\n' "${title}" >"${cli_tty}"
+	{ printf '%s\n' "${title}" | sed 's/./-/g'; } >"${cli_tty}"
 
 	while :; do
-		printf '\n' >"$(tty)"
+		printf '\n' >"${cli_tty}"
 		i=0
 		l=${#}
 		for label in "${@}"; do
 			i=$(($i + 1))
-			printf '  %4d: %s\n' "${i}" "${label}" >"$(tty)"
+			printf '  %4d: %s\n' "${i}" "${label}" >"${cli_tty}"
 		done
-		printf '\n> ' >"$(tty)"
-		if ! read -r i <"$(tty)"; then
+		printf '\n> ' >"${cli_tty}"
+		if ! read -r i <"${cli_tty}"; then
 			continue
 		fi
 		case "${i}" in