mmozuras’s gists

mmozuras / by_year.sh

Created November 8, 2019 09:53

Lines of code in a git repository by year

	git ls-files \|
	while read f; do
	echo $f > /dev/tty; git blame $f \|
	grep -o "\d\{4\}-";
	done \|
	sort -f \|
	uniq -ic \|
	sort -n

mmozuras / rename_to_date.sh

Created November 11, 2016 09:25

Rename JPG files to their creation dates

	for i in *.jpg
	do
	jhead -n"%Y-%m-%d %H.%M.%S" $i
	done

mmozuras / benchmark_hash_access.rb

Created November 7, 2014 21:40

Benchmark hash access in Ruby: symbol versus string

	require 'benchmark/ips'

	string_hash = { 'aaa' => 1, 'bbb' => 2, 'ccc' => 3 }
	symbol_hash = { aaa: 1, bbb: 2, ccc: 3 }

	Benchmark.ips do \|x\|
	x.report('string') { string_hash['bbb'] }
	x.report('symbol') { symbol_hash[:bbb] }

	x.compare!

mmozuras / benchmark_includes.rb

Last active August 29, 2015 14:01

Benchmark various ways to write ==.*|| in Ruby

	require 'benchmark/ips'
	require 'set'

	ARRAY = [:integer, :float, :decimal]
	SET = ARRAY.to_set
	type = :decimal

	Benchmark.ips do \|x\|
	x.report('array') { [:integer, :float, :decimal].include?(type) }
	x.report('or') { type == :integer \|\| type == :float \|\| type == :decimal }

mmozuras / largest_tables.sql

Created May 16, 2014 11:19

Largest tables in the database (change SCHEMA to your database name)

	SELECT table_name, round(((data_length + index_length) / 1024 / 1024), 2) AS size
	FROM information_schema.TABLES
	WHERE table_schema = "SCHEMA"
	ORDER BY size DESC LIMIT 20;

mmozuras / git-trend.sh

Created May 14, 2014 18:48

Bash script to see how fixes are trending in current repo (per committer)

	#!/bin/bash

	for i in {0..24}
	do
	ii=$(($i + 1))

	fixes=`git log --since="${ii} months ago" --until="${i} months ago" \| grep -i fix \| wc -l`
	committers=`git log --since="${ii} months ago" --until="${i} months ago" --pretty=format:"%an" \| sort -u \| wc -l`

	echo `bc -l <<< "${fixes} / ${committers}"`

mmozuras / gist:6436306

Created September 4, 2013 12:32

irssi-xmpp instructions for Mac OSX

Installation

brew install irssi    
brew install loudmouth
git clone [email protected]:weiss/irssi-xmpp.git
cd irssi-xmpp
LDFLAGS='-flat_namespace -undefined warning -fPIC'; export LDFLAGS
make PREDIX=/usr/local/Cellar/irssi/0.8.15
make user-install

mmozuras / gist:5972871

Created July 11, 2013 05:57

Bash function to convert a video to a gif

	gifit() {
	if [[ -n "$1" ]]; then
	ffmpeg -i $1 -s 600x375 -pix_fmt rgb24 -r 10 -f gif - \| gifsicle --optimize=3 --delay=5 > $1.gif
	else
	echo "proper usage: gifit <input_movie.mov>"
	fi
	}

mmozuras / gist:5597484

Last active December 17, 2015 10:49 — forked from spajus/gist:5213420

Delete all git tags locally and remotely based on their name length

	for t in `git tag`
	do
	if [[ ${#t} -lt 20 ]]; then
	echo keeping $t
	else
	git push origin :$t
	git tag -d $t
	fi
	done

mmozuras / gist:5476751

Created April 28, 2013 12:30

Filter VilniusJS attendees emails

	lines = File.readlines('vilniusjs_emails')

	result = []
	remove = false

	lines.each do \|line\|
	if line.strip.empty?
	remove = true
	end

	git ls-files \|
	while read f; do
	echo $f > /dev/tty; git blame $f \|
	grep -o "\d\{4\}-";
	done \|
	sort -f \|
	uniq -ic \|
	sort -n

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