James Costian jamescostian
jamescostian
/ install_if_not_exists.sh
Created
December 15, 2019 23:02
Given a string of programs, try to install them
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| function install_if_not_exists { | |
| MISSING_DEPENDENCIES="" | |
| for program in $@; do | |
| hash "$program" 2> /dev/null || MISSING_DEPENDENCIES="$program $MISSING_DEPENDENCIES" | |
| done | |
| if [[ -z "$MISSING_DEPENDENCIES" ]]; then | |
| return | |
| fi | |
| if hash nix-env 2> /dev/null; then | |
| nix-env -i $MISSING_DEPENDENCIES |
jamescostian
/ journalctl -xe
Created
October 12, 2019 19:06
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| -- Logs begin at Sat 2019-10-05 16:16:58 CDT, end at Sat 2019-10-12 14:05:25 CDT. -- | |
| Oct 12 13:59:12 james-desktop systemd[1]: Starting Docker Application Container Engine... | |
| -- Subject: Unit docker.service has begun start-up | |
| -- Defined-By: systemd | |
| -- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel | |
| -- | |
| -- Unit docker.service has begun starting up. | |
| Oct 12 13:59:12 james-desktop dockerd[5323]: time="2019-10-12T13:59:12.557952849-05:00" level=info msg="libcontainerd: started new containerd process" pid=5346 | |
| Oct 12 13:59:12 james-desktop dockerd[5323]: time="2019-10-12T13:59:12.558079670-05:00" level=info msg="parsed scheme: \"unix\"" module=grpc | |
| Oct 12 13:59:12 james-desktop dockerd[5323]: time="2019-10-12T13:59:12.558089996-05:00" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc |
jamescostian
/ git-downsize.sh
Created
July 22, 2015 01:19
For when you have a gigantic .git directory
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| git gc --aggressive && git repack -Ad && git prune |
jamescostian
/ discrepancy.js
Last active
August 29, 2015 14:18
Sort of like the difference between x and y, except relative to |x+y|
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| // Sort of like the difference between x and y, except it's relative to |x+y|. | |
| // So it returns a percentage (so the value is between 0 and 1) | |
| const discrepancy = (x, y) => { | |
| if (y === 0 && x === 0) { | |
| return 0 | |
| } | |
| else if (x + y === 0) { | |
| // They're on opposite ends of 0, so they have the largest discrepancy possible | |
| return 1 | |
| } |
jamescostian
/ htmlentities.js
Last active
March 29, 2016 14:30
This is like PHP's htmlentities, but for JS
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| const htmlEntities = (str) => String(str) | |
| .replace(/&/g, '&') | |
| .replace(/</g, '<') | |
| .replace(/>/g, '>') | |
| .replace(/"/g, '"') | |
| .replace(/'/g, ''') | |
| const unhtmlEntities = (str) => String(str) | |
| .replace(/&/g, '&') | |
| .replace(/</g, '<') |