Run from crontab

[uggyuggy]

When running from crontab, I fail having faup to works as expected

I have this test script that use 2 ways to call faup (with full path)

#!/bin/bash -x

echo "----Start"
echo ""
echo "-- 1 --"
echo "www.github.com" | /bin/faup
echo $?
echo ""
echo "-- 2 --"
/bin/faup  www.github.com
echo $?
echo ""
echo "----End"

When running not from cron, i have expected results:

+ echo ----Start
----Start
+ echo ''

+ echo '-- 1 --'
-- 1 --
+ echo www.github.com
+ /bin/faup
,,www,github.com,github,www.github.com,com,,,,,mozilla_tld
+ echo 0
0
+ echo ''

+ echo '-- 2 --'
-- 2 --
+ /bin/faup www.github.com
,,www,github.com,github,www.github.com,com,,,,,mozilla_tld
+ echo 0
0
+ echo ''

+ echo ----End
----End

When this script is called from crontab, the first command works fine, but the 2nd command does not create output

* 12 * * * /aaa/toto.sh > /tmp/tototo

----Start

-- 1 --
,,www,github.com,github,www.github.com,com,,,,,mozilla_tld
0

-- 2 --
0

----End

+ echo ----Start
+ echo ''
+ echo '-- 1 --'
+ echo www.github.com
+ /bin/faup
+ echo 0
+ echo ''
+ echo '-- 2 --'
+ /bin/faup www.github.com
+ echo 0
+ echo ''
+ echo ----End

/bin/faup -v
faup v1.6
FAUP_DATA_DIR=/usr/local/share/faup/
TLD file being used:/usr/local/share/faup/mozilla.tlds

I should admit I'm quite confused on why the first command works, but not the other one, only when running from cron.
I tried to also change the env variables to match those when run from my user.. but no luck...

I tried on 2 different systems. Does someone reproduce same issue ? And/or have some clue on what I'm possibly doing wrong ?

Thank's

[uggyuggy]

"cat" workaround has not bad performances, so will use that until I get a better understanding on my issue (may be interactive/non interactive session ? )

time faup -f domain_without_tld top-1m.csv > toto
real	0m3.602s

time cat top-1m.csv | faup -f domain_without_tld > toto
real	0m3.761s

[stricaud]

thanks for reporting this, I try to make it as easy as possible, so I would expect what you do in the first place should work. If there is a good reason for this not to work, I would rather have a warning or something I can point out in the documentation.

I will see if I can reproduce and how to fix, so leaving this open until it gets resolved. Glad you have found a workout in between.

[uggyuggy]

Thx, happy to help debugging if necessary.

[andrew-stevenson-sociomantic]

I think the problem is

faup/src/tools/faup.c

Line 437 in b65a4d8

if (isatty(fileno(stdin))) {

. It will be false if running from cron so you end up at

faup/src/tools/faup.c

Line 469 in b65a4d8

run_from_stream(fh, stdin);

which only accepts input from stdin.

I assume the fix would be to check for the presence of arguments, rather than a tty, to decide where to read input from, ala perl's <> operator.

(I haven't tested the above - just conjecture)

[uggyuggy]

Thank's for the investigation 👍

[stricaud]

Agreed, I will check this to implement the fix. I am able to reproduce this, so it should be quick. Thank you so much @andrew-stevenson-sociomantic