5 echo [STEP] Initialize test library
7 # Paths to compiled executables
9 # realpath on FreeBSD fails if the path does not exist.
11 [ -e "$1" ] || mkdir -p "$1"
12 if type realpath >/dev/null; then
19 tincd_path=$(realdir "../src/tincd@EXEEXT@")
20 tinc_path=$(realdir "../src/tinc@EXEEXT@")
22 SPTPS_TEST=$(realdir "../src/sptps_test@EXEEXT@")
23 SPTPS_KEYPAIR=$(realdir "../src/sptps_keypair@EXEEXT@")
28 # The list of the environment variables that tinc injects into the scripts it calls.
29 # shellcheck disable=SC2016
30 TINC_SCRIPT_VARS='$NETNAME,$NAME,$DEVICE,$IFACE,$NODE,$REMOTEADDRESS,$REMOTEPORT,$SUBNET,$WEIGHT,$INVITATION_FILE,$INVITATION_URL,$DEBUG'
34 # Reuse script name if it was passed in an env var (when imported from tinc scripts).
35 if [ -z "$SCRIPTNAME" ]; then
36 SCRIPTNAME=$(basename "$0")
39 # Network names for tincd daemons.
44 # Configuration/pidfile directories for tincd daemons.
45 DIR_FOO=$(realdir "$PWD/$net1")
46 DIR_BAR=$(realdir "$PWD/$net2")
47 DIR_BAZ=$(realdir "$PWD/$net3")
49 # Register helper functions
51 # Alias gtimeout to timeout if it exists.
52 if type gtimeout >/dev/null; then
53 timeout() { gtimeout "$@"; }
56 # Are the shell tools provided by busybox?
58 timeout --help 2>&1 | grep -q -i busybox
61 # busybox timeout returns 128 + signal number (which is TERM by default)
63 EXIT_TIMEOUT=$((128 + 15))
70 test "$(uname -o)" = Msys
73 # Are we running on a CI server?
78 # Dump error message and exit with an error.
84 # Remove carriage returns to normalize strings on Windows for easier comparisons.
89 # Executes whatever is passed to it, checking that the resulting exit code is non-zero.
92 bail "expected a non-zero exit code"
96 # Runs its arguments with timeout(1) or gtimeout(1) if either are installed.
97 # Usage: try_limit_time 10 command --with --args
98 if type timeout >/dev/null; then
100 # busybox does not support --foreground
107 # BSD and GNU timeout do not require special handling
111 timeout --foreground "$time" "$@"
116 echo >&2 "timeout was not found, running without time limits!"
122 # wc -l on mac prints whitespace before the actual number.
123 # This is simplest cross-platform alternative without that behavior.
125 awk 'END{ print NR }'
128 # Calls compiled tinc, passing any supplied arguments.
129 # Usage: tinc { foo | bar | baz } --arg1 val1 "$args"
135 foo) try_limit_time 30 "$tinc_path" -n "$net1" --config="$DIR_FOO" --pidfile="$DIR_FOO/pid" "$@" ;;
136 bar) try_limit_time 30 "$tinc_path" -n "$net2" --config="$DIR_BAR" --pidfile="$DIR_BAR/pid" "$@" ;;
137 baz) try_limit_time 30 "$tinc_path" -n "$net3" --config="$DIR_BAZ" --pidfile="$DIR_BAZ/pid" "$@" ;;
138 *) bail "invalid command [[$peer $*]]" ;;
142 # Calls compiled tincd, passing any supplied arguments.
143 # Usage: tincd { foo | bar | baz } --arg1 val1 "$args"
149 foo) try_limit_time 30 "$tincd_path" -n "$net1" --config="$DIR_FOO" --pidfile="$DIR_FOO/pid" --logfile="$DIR_FOO/log" -d5 "$@" ;;
150 bar) try_limit_time 30 "$tincd_path" -n "$net2" --config="$DIR_BAR" --pidfile="$DIR_BAR/pid" --logfile="$DIR_BAR/log" -d5 "$@" ;;
151 baz) try_limit_time 30 "$tincd_path" -n "$net3" --config="$DIR_BAZ" --pidfile="$DIR_BAZ/pid" --logfile="$DIR_BAZ/log" -d5 "$@" ;;
152 *) bail "invalid command [[$peer $*]]" ;;
156 # Start the specified tinc daemon.
157 # usage: start_tinc { foo | bar | baz }
163 foo) tinc "$peer" start --logfile="$DIR_FOO/log" -d5 "$@" ;;
164 bar) tinc "$peer" start --logfile="$DIR_BAR/log" -d5 "$@" ;;
165 baz) tinc "$peer" start --logfile="$DIR_BAZ/log" -d5 "$@" ;;
166 *) bail "invalid peer $peer" ;;
170 # Stop all tinc clients.
173 # In case these pid files are mangled.
175 [ -f "$DIR_FOO/pid" ] && tinc foo stop
176 [ -f "$DIR_BAR/pid" ] && tinc bar stop
177 [ -f "$DIR_BAZ/pid" ] && tinc baz stop
182 # Checks that the number of reachable nodes matches what is expected.
183 # usage: require_nodes node_name expected_number
185 echo >&2 "Check that we're able to reach tincd"
186 test "$(tinc "$1" pid | count_lines)" = 1
188 echo >&2 "Check the number of reachable nodes for $1 (expecting $2)"
189 actual="$(tinc "$1" dump reachable nodes | count_lines)"
191 if [ "$actual" != "$2" ]; then
192 echo >&2 "tinc $1: expected $2 reachable nodes, got $actual"
199 foo) echo "$DIR_FOO" ;;
200 bar) echo "$DIR_BAR" ;;
201 baz) echo "$DIR_BAZ" ;;
202 *) bail "invalid peer $peer" ;;
206 # This is an append-only log of all scripts executed by all peers.
208 echo "$(peer_directory "$1")/script-runs.log"
211 # Create tincd script. If it fails, it kills the test script with SIGTERM.
212 # usage: create_script { foo | bar | baz } { tinc-up | host-down | ... } 'script content'
218 # This is the line that we should start from when reading the script execution log while waiting
219 # for $script from $peer. It is a poor man's hash map to avoid polluting tinc's home directory with
220 # "last seen" files. There seem to be no good solutions to this that are compatible with all shells.
221 line_var=$(next_line_var "$peer" "$script")
223 # We must reassign it here in case the script is recreated.
224 # shellcheck disable=SC2229
225 read -r "$line_var" <<EOF
229 # Full path to the script.
230 script_path=$(peer_directory "$peer")/$script
232 # Full path to the script execution log (one for each peer).
233 script_log=$(script_runs_log "$peer")
234 printf '' >"$script_log"
236 # Script output is redirected into /dev/null. Otherwise, it ends up
237 # in tinc's output and breaks things like 'tinc invite'.
238 cat >"$script_path" <<EOF
242 SCRIPTNAME="$SCRIPTNAME" . ./testlib.sh
244 echo "$script,\$$,$TINC_SCRIPT_VARS" >>"$script_log"
245 ) >/dev/null 2>&1 || kill -TERM $$
248 chmod u+x "$script_path"
251 echo "@$MINGW_SHELL '$script_path'" >"$script_path.cmd"
255 # Returns the name of the variable that contains the line number
256 # we should read next when waiting on $script from $peer.
257 # usage: next_line_var foo host-up
260 script=$(echo "$2" | sed 's/[^a-zA-Z0-9]/_/g')
261 printf "%s" "next_line_${peer}_${script}"
264 # Waits for `peer`'s script `script` to finish `count` number of times.
265 # usage: wait_script { foo | bar | baz } { tinc-up | host-up | ... } [count=1]
271 if [ -z "$count" ] || [ "$count" -lt 1 ]; then
275 # Find out the location of the log and how many lines we should skip
276 # (because we've already seen them in previous invocations of wait_script
277 # for current $peer and $script).
278 line_var=$(next_line_var "$peer" "$script")
280 # eval is the only solution supported by POSIX shells.
281 # https://github.com/koalaman/shellcheck/wiki/SC3053
282 # 1. $line_var expands into 'next_line_foo_hosts_bar_up'
283 # 2. the name is substituted and the command becomes 'echo "$next_line_foo_hosts_bar_up"'
284 # 3. the command is evaluated and the line number is assigned to $line
285 line=$(eval "echo \"\$$line_var\"")
287 # This is the file that we monitor for script execution records.
288 script_log=$(script_runs_log "$peer")
290 # Starting from $line, read until $count matches are found.
291 # Print the number of the last matching line and exit.
292 # GNU tail 2.82 and newer terminates by itself when the pipe breaks.
293 # To support other tails we do an explicit `kill`.
294 # FIFO is useful here because otherwise it's difficult to determine
295 # which tail process should be killed. We could stick them in a process
296 # group by enabling job control, but this results in weird behavior when
297 # running tests in parallel on some interactive shells
298 # (e.g. when /bin/sh is symlinked to dash).
300 try_limit_time 60 sh -c "
302 cleanup() { rm -f \$fifo; }
303 cleanup && trap cleanup EXIT
306 tail -n '+$line' -f '$script_log' >\$fifo &
307 grep -n -m '$count' '^$script,' <\$fifo
309 " | awk -F: 'END { print $1 }'
312 # Remember the next line number for future reference. We'll use it if
313 # wait_script is called again with same $peer and $script.
314 read -r "${line_var?}" <<EOF
319 # Are we running tests in parallel?
321 # Grep the make flags for any of: '-j', '-j5', '-j 42', but not 'n-j', '-junk'.
322 echo "$MAKEFLAGS" | grep -E -q '(^|[[:space:]])-j[[:digit:]]*([[:space:]]|$)'
325 # Cleanup after running each script.
332 # Ask nicely, then kill anything that's left.
333 if is_ci && ! is_parallel; then
337 for process in "$@"; do
338 pkill -"SIG$signal" -x -u "$(id -u)" "$process"
341 echo >&2 "CI server detected, performing aggressive cleanup"
342 kill_processes TERM tinc tincd
343 kill_processes KILL tinc tincd
348 # Generate path to current shell which can be used from Windows applications.
350 MINGW_SHELL=$(cygpath --mixed -- "$SHELL")
353 # This was called from a tincd script. Skip executing commands with side effects.
354 [ -n "$NAME" ] && return
356 echo [STEP] Check for leftover tinc daemons and test directories
358 # Cleanup leftovers from previous runs.
361 # On Windows this can actually fail. We don't want to suppress possible failure with -f.
362 if [ -d "$DIR_FOO" ]; then rm -r "$DIR_FOO"; fi
363 if [ -d "$DIR_BAR" ]; then rm -r "$DIR_BAR"; fi
364 if [ -d "$DIR_BAZ" ]; then rm -r "$DIR_BAZ"; fi
366 # Register cleanup function so we don't have to call it everywhere
367 # (and failed scripts do not leave stray tincd running).
368 trap cleanup EXIT INT TERM