kathampy’s gists

kathampy / usize_add.rs

Created March 4, 2021 06:13

Checked add signed to usize.

	fn add(u: usize, i: i32) -> Option<usize> {
	if i.is_negative() {
	u.checked_sub(i.wrapping_abs() as u32 as usize)
	} else {
	u.checked_add(i as usize)
	}
	}

	fn main() {
	let u = 7;

kathampy / curl.rb

Created October 25, 2019 08:02

`curl.rb` with `LibreSSL`

	# --with-ssl is ignored and depends_on "libressl" doesn't work.
	ENV.prepend_path "PKG_CONFIG_PATH", "#{Formula["libressl"].opt_lib}/pkgconfig"

kathampy / saturating_cast.rs

Last active October 23, 2019 17:19

Saturating Casts

	/*
	From https://github.com/rust-lang/rust/issues/23596

	128-bit support
	More usize & isize conversions
	Lossless conversion between usize & isize <-> integers
	Inlined functions
	Removed self-casts and primitives with From<T> implementations

	Note: usize & isize conversions valid on 32-bit & 64-bit word sizes.

kathampy / cloudflared.sh

Created November 15, 2018 23:09

Reinstalls cloudflared on EdgeOS after firmware upgrade

	[ -e /etc/cloudflared ] \|\| {
	curl --fail https://raw.githubusercontent.com/yon2004/ubnt_cloudflared/master/cloudflared --output /usr/local/bin/cloudflared \|\| die
	chmod +x /usr/local/bin/cloudflared \|\| die

	ln -s /config/cloudflared /etc/cloudflared \|\| die

	[ -e /etc/cloudflared/config.yml ] \|\| {
	curl --fail https://raw.githubusercontent.com/yon2004/ubnt_cloudflared/master/config.yml --output /etc/cloudflared/config.yml \|\| die
	}

kathampy / pacproxy.sh

Created January 4, 2018 08:41

Runs an instance of pacproxy in the background which terminates with the current shell.

	# Runs an instance of pacproxy in the background which terminates with the current shell.
	# Requires pacproxy (https://github.com/williambailey/pacproxy/releases).
	# Must be sourced in the current shell with the command ". ./pacproxy.sh".
	pacproxy -c http://proxy/proxy.pac -l 127.0.0.1:3128 -v & trap 'pkill -P $$' SIGINT SIGTERM EXIT && export HTTP_PROXY=http://127.0.0.1:3128 && export HTTPS_PROXY=$HTTP_PROXY

kathampy / local.applescript.plist

Created November 2, 2016 11:57

Run an AppleScript from a Launch Agent.

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">
	<dict>
	<key>Label</key>
	<string>local.applescript</string>
	<key>ProgramArguments</key>
	<array>
	<string>sh</string>
	<string>-c</string>

kathampy / .zshenv

Last active November 2, 2016 11:58

Set $PATH with path_helper for non-login shells on macOS.

	if [[ ! -o login && -x /usr/libexec/path_helper ]]; then
	eval `/usr/libexec/path_helper -s`
	fi

kathampy / local.environment.plist

Last active November 2, 2016 11:51

Set environment variables on macOS.

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">
	<dict>
	<key>Label</key>
	<string>local.environment</string>
	<key>ProgramArguments</key>
	<array>
	<string>launchctl</string>
	<string>setenv</string>

	[ -e /etc/cloudflared ] \|\| {
	curl --fail https://raw.githubusercontent.com/yon2004/ubnt_cloudflared/master/cloudflared --output /usr/local/bin/cloudflared \|\| die
	chmod +x /usr/local/bin/cloudflared \|\| die

	ln -s /config/cloudflared /etc/cloudflared \|\| die

	[ -e /etc/cloudflared/config.yml ] \|\| {
	curl --fail https://raw.githubusercontent.com/yon2004/ubnt_cloudflared/master/config.yml --output /etc/cloudflared/config.yml \|\| die
	}

Kurian Thampy kathampy