4 ms·

I’ve got a random question for the terminal folk: I’m often testing a web server hosted on a remote server that hot reloads, but I have to wait for it to finish

I’ve got a random question for the terminal folk: I’m often testing a web server hosted on a remote server that hot reloads, but I have to wait for it to finish compiling. I can tell it’s done if I have a tab open looking at the logs, but ideally I’d like some kind of icon that’s yellow when compiling, green when compiled, etc. What could I use for that?

deleted 4y ago
[deleted]
hboon 4y ago
If you mean to mix in GUI, on macOS, there is BitBar and another one (forgot the name) that just puts a big coloured dot in the menubar that you can curl to change its color. Something along that line would work.
- asdfman123 4y ago
  What about Linux?
akira2501 4y ago
tmux. If a bell, or ctrl-g, is output on the terminal, the tmux status line will indicate this fact if you are viewing a different terminal. It will stay indicating until you switch back to that terminal. tmux will also show you the name of the command that's currently running, so if it's a make file or other script that finishes, you can observe that on it's own, but if you add an `echo -e "\007"` to the end of your script, you'll get the indicator.
- asdfman123 4y ago
  Nice! I already use tmux. I’m not sure if the log file outputs anything like that though. There’s a way to hook into the build process and run commands after it completes. I’m guessing I might have to do that to get the status line wired in.
  - lloeki 4y ago
    this is not tmux specific, basically every terminal out there would react to the bell char. e.g Terminal.app adds a bell icon to the tab, makes the dock icon bounce, and a badge on it. if you want to hack a bit and have a specific log line outputted yo the terminal you can stuff the bell char right in the string! one could also display notifications, there are more advanced CLI programs but here's a crude way: https://apple.stackexchange.com/questions/238814/send-notification-from-command-line#238820 https://apple.stackexchange.com/questions/238814/send-notifi... These things can also be done on Linux. A bit of web searching should give you ideas. I frequently use them with long running commands or fswatch.
Galanwe 4y ago
If I understand correctly, you have a remote server with a logfile, and some markers in this log file tells you whether the build is in process or finished. I would suggest you keep it simple and simply poll the logfile for the latest occurrence of either "Build started" or "Build finished" and display a pop-up for each case. Very roughly that would look like: while true do MATCH=$(ssh remote@host 'cat /logfile' | grep -P 'started|finished' | tail -1) case "$MATCH" in *started*) notify-send "Build started" ;; *finished*) notify-send "Build finished" ;; esac sleep 1s done That's dirty bash written in an HN comment on my phone, but the idea is here. It's a bit wasteful to initiate ssh sessions so often, so you could improve it with a single "ssh remote@host tail -f /logfile", pipe that to "grep", then to a while read, but I left that as an exercise. There is some option to notify-send so that pop-ups replace one another instead of creating new ones.
- asdfman123 4y ago
  I should have clarified I’m usually looking at another tab in tmux. Any way to pop up there?
  - jxf 4y ago
    You can ask tmux to update the window status — for instance to show red or green based on the exit code of the last command. Example here: https://unix.stackexchange.com/a/597367/63035 https://unix.stackexchange.com/a/597367/63035
    - asdfman123 4y ago
      Nice! I was able to do just that, with a solution like the one you wrote, except I'm grepping a local (instead of remote) log, and changing the status bar color based on log output. Was exactly what I wanted, thanks.
Rebelgecko 4y ago
If you're on a mac that sounds doable with iterm. I have some code in my fish config to bounce the dock icon when a longrunning command ends
daneel_w 4y ago
In some cases you can get away with simple solutions like just printing the BEL character a few times: make install; printf \\a\\a\\a
arlort 4y ago
I think the bell character suggestion might be the simplest, but depending on how long the build takes you might want to check ntfy.sh I alias the build command to POST a notification using curl and get it on the browser/phone
mixmastamyk 4y ago
You can change the tab title with ansi escapes. These days you can use Unicode chars as well, and some have colors, say with a emoji font.

deleted 4y ago

[deleted]

hboon 4y ago

If you mean to mix in GUI, on macOS, there is BitBar and another one (forgot the name) that just puts a big coloured dot in the menubar that you can curl to change its color. Something along that line would work.

asdfman123 4y ago
What about Linux?

akira2501 4y ago

tmux. If a bell, or ctrl-g, is output on the terminal, the tmux status line will indicate this fact if you are viewing a different terminal. It will stay indicating until you switch back to that terminal. tmux will also show you the name of the command that's currently running, so if it's a make file or other script that finishes, you can observe that on it's own, but if you add an `echo -e "\007"` to the end of your script, you'll get the indicator.

asdfman123 4y ago
Nice! I already use tmux. I’m not sure if the log file outputs anything like that though. There’s a way to hook into the build process and run commands after it completes. I’m guessing I might have to do that to get the status line wired in.
- lloeki 4y ago
  this is not tmux specific, basically every terminal out there would react to the bell char. e.g Terminal.app adds a bell icon to the tab, makes the dock icon bounce, and a badge on it. if you want to hack a bit and have a specific log line outputted yo the terminal you can stuff the bell char right in the string! one could also display notifications, there are more advanced CLI programs but here's a crude way: https://apple.stackexchange.com/questions/238814/send-notification-from-command-line#238820 https://apple.stackexchange.com/questions/238814/send-notifi... These things can also be done on Linux. A bit of web searching should give you ideas. I frequently use them with long running commands or fswatch.

Galanwe 4y ago

If I understand correctly, you have a remote server with a logfile, and some markers in this log file tells you whether the build is in process or finished. I would suggest you keep it simple and simply poll the logfile for the latest occurrence of either "Build started" or "Build finished" and display a pop-up for each case. Very roughly that would look like: while true do MATCH=$(ssh remote@host 'cat /logfile' | grep -P 'started|finished' | tail -1) case "$MATCH" in *started*) notify-send "Build started" ;; *finished*) notify-send "Build finished" ;; esac sleep 1s done That's dirty bash written in an HN comment on my phone, but the idea is here. It's a bit wasteful to initiate ssh sessions so often, so you could improve it with a single "ssh remote@host tail -f /logfile", pipe that to "grep", then to a while read, but I left that as an exercise. There is some option to notify-send so that pop-ups replace one another instead of creating new ones.

asdfman123 4y ago
I should have clarified I’m usually looking at another tab in tmux. Any way to pop up there?
- jxf 4y ago
  You can ask tmux to update the window status — for instance to show red or green based on the exit code of the last command. Example here: https://unix.stackexchange.com/a/597367/63035 https://unix.stackexchange.com/a/597367/63035
  - asdfman123 4y ago
    Nice! I was able to do just that, with a solution like the one you wrote, except I'm grepping a local (instead of remote) log, and changing the status bar color based on log output. Was exactly what I wanted, thanks.

Rebelgecko 4y ago

If you're on a mac that sounds doable with iterm. I have some code in my fish config to bounce the dock icon when a longrunning command ends

daneel_w 4y ago

In some cases you can get away with simple solutions like just printing the BEL character a few times: make install; printf \\a\\a\\a

arlort 4y ago

I think the bell character suggestion might be the simplest, but depending on how long the build takes you might want to check ntfy.sh I alias the build command to POST a notification using curl and get it on the browser/phone

mixmastamyk 4y ago

You can change the tab title with ansi escapes. These days you can use Unicode chars as well, and some have colors, say with a emoji font.