Got a weird issue where an engineer at our company has a dev

Question

Got a weird issue where an engineer at our company has a dev container set up such that ` proc self fd 0` is a broken symlink to a non existent terminal This breaks Pants with pantsd running locally for them as pantsd complains that it can t open this terminal I m not sure how this situation can arise I ll dig but it is a real thing However I cannot reproduce My suggested workaround is `export PANTS DYNAMIC UI=false` as running without pantsd makes local usage pretty tedious Would Pants devs expect this to work

flat-zoo-31952 · Answer

Dynamic UI didn t work I found out how this is happening it s via `nsenter` ing into a container which I think bypasses terminal allocation ```nsenter all target=$CONTAINER PID bin su $USER``` where `$CONTAINER PID` is found via some script I ll work on an in depth repro tomorrow You can t make this stuff up lol

flat-zoo-31952 · Answer

Truncated traceback ``` File var tmp user cache pants setup bootstrap Linux x86 64 2 13 0rc2+gitb0e7422e py39 lib64 python3 9 site packages pants bin remote pants runner py line 48 in ttynames to env return dict gen env vars File var tmp user cache pants setup bootstrap Linux x86 64 2 13 0rc2+gitb0e7422e py39 lib64 python3 9 site packages pants bin remote pants runner py line 46 in gen env vars yield f NAILGUN TTY PATH fd id os ttyname fd fileno or b OSError Errno 19 No such device``` The dev in question worked around this by hacking `ttynames to env` to `return `