Don't run `apt update` if it's been run recently (#4135)

When installing or searching for packages, the `apt update` will run only if it
was not executed within the last 5 minutes. Command `pkg upgrade` will
always execute `apt update` to ensure that latest package versions were
picked during upgrade.

packages/termux-tools/build.sh

@@ -1,7 +1,7 @@
 TERMUX_PKG_HOMEPAGE=https://termux.com/
 TERMUX_PKG_DESCRIPTION="Basic system tools for Termux"
 TERMUX_PKG_LICENSE="GPL-3.0"
-TERMUX_PKG_VERSION=0.71
+TERMUX_PKG_VERSION=0.72
 TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 TERMUX_PKG_ESSENTIAL=true

packages/termux-tools/pkg

@@ -19,28 +19,35 @@ show_help() {
 }
 
 assert_not_root() {
-  if [ $(id -u) -eq 0 ]
-  then
-    echo "This must NOT be run as root as it will break your environment (root will be required for nearly everything due to changed file permissions)"
-    exit 1
-  fi
+	if [ $(id -u) -eq 0 ]; then
+		echo "This must NOT be run as root as it will break your environment (root will be required for nearly everything due to changed file permissions)"
+		exit 1
+	fi
 }
 
-if [ $# = 0 ]; then show_help; fi
+check_pkgcache() {
+	if [ -z "$(find @TERMUX_PREFIX@/var/cache/apt/pkgcache.bin -mmin -5)" ]; then
+		apt update
+	fi
+}
+
+if [ $# = 0 ]; then
+	show_help
+fi
+
 CMD="$1"
 shift 1
 
 case "$CMD" in
 	f*) dpkg -L "$@";;
 	h*) show_help;;
-	add|i*) assert_not_root; apt update; apt install "$@";;
+	add|i*) assert_not_root; check_pkgcache; apt install "$@";;
 	list-a*) apt list "$@";;
 	list-i*) apt list --installed "$@";;
 	rei*) assert_not_root; apt install --reinstall "$@";;
-	se*) assert_not_root; apt update; apt search "$@";;
+	se*) assert_not_root; check_pkgcache; apt search "$@";;
 	sh*) apt show "$@";;
 	un*|rem*|rm|del*) assert_not_root; apt remove "$@";;
 	up*) assert_not_root; apt update; apt full-upgrade "$@";;
-	*) echo "Unknown command: '$CMD' (run 'pkg help' for usage information)";;
+	*) echo "Unknown command: '$CMD' (run 'pkg help' for usage information)"; exit 1;;
 esac
-