From b28a9100ed188419a18aca73af4f37b505cfe8d6 Mon Sep 17 00:00:00 2001
From: Oliver Smith <osmith@sysmocom.de>
Date: Mon, 17 Jan 2022 15:59:02 +0100
Subject: [PATCH] net: require terminal to be configured

Prepare to add "tmux" as new terminal. As discussed in code review, we
decided to drop support for auto-detection.

Change-Id: I0afb6b0242c399334a2c37f18a5d26d5beeabedc
---
 net/config_2g3g      |  4 ++++
 net/templates/run.sh | 27 ++++++++++++++++++++-------
 2 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/net/config_2g3g b/net/config_2g3g
index c1498be..a46f55e 100644
--- a/net/config_2g3g
+++ b/net/config_2g3g
@@ -1,3 +1,7 @@
+# Terminal for launching Osmocom programs
+# Supported: urxvt, xterm
+TERMINAL="urxvt"
+
 ETH_DEV=eth0
 APN_DEV=apn0
 
diff --git a/net/templates/run.sh b/net/templates/run.sh
index 311cdd9..c2f42ee 100755
--- a/net/templates/run.sh
+++ b/net/templates/run.sh
@@ -44,14 +44,27 @@ mkdir -p "$logdir"
 find_term() {
   # Find a terminal program and write to the global "terminal" variable
   local programs="urxvt xterm"
-  local program
-  for program in $programs; do
-    terminal="$(which $program)"
-    [ -n "$terminal" ] && return
-  done
 
-  # No terminal found
-  echo "ERROR: Couldn't find terminal program! Looked for: $programs"
+  if [ -z "${TERMINAL}" ]; then
+    echo "ERROR: TERMINAL is not defined in your osmo-dev net config file. Please add it."
+    exit 1
+  fi
+
+  case " $programs " in
+    *" ${TERMINAL} "*)
+      terminal="${TERMINAL}"
+
+      if command -v "$terminal" >/dev/null; then
+        echo "Terminal: ${TERMINAL}"
+        return
+      fi
+
+      echo "ERROR: Terminal '${TERMINAL}' is configured, but not installed"
+      exit 1
+      ;;
+  esac
+
+  echo "ERROR: Terminal '${TERMINAL}' is not in list of supported terminals ($programs)"
   exit 1
 }