Makistos’s gists

Makistos / validate.py

Last active April 20, 2017 10:02

Check if a string only has valid words. #python

	import sys

	valid_words = ('opsub', 'opequal', 'opadd', 'opmult', 'oprdiv', 'opidiv')

	def is_valid(str):
	return all(word in valid_words for word in str.split())

	not_validated = sys.argv[1]

	if is_valid(not_validated):

Makistos / rec_list_files.c

Created April 5, 2017 12:48

Recursively list files in C. #c #file-handling #recursive

	#include <dirent.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <getopt.h>
	#include <libgen.h>
	#include <string.h>
	#include <errno.h>
	#include <unistd.h>

	static const char short_options [] = "d:";

Makistos / parse_files.py

Created February 1, 2017 14:34

Read files recursively. Useful for e.g. command files. #python #file-handling

	def parse_test_file(filename):
	retval = []
	with open(filename) as f:
	lines = f.read().splitlines()

	path, script = os.path.split(os.path.abspath(filename))
	cwd = os.getcwd()
	if cwd != path:
	os.chdir(path)
	for line in lines:

Makistos / interrupt.py

Created February 1, 2017 14:24

How to interrupt a long-running operation in Python. #python

	try:
	// Something really long and boring
	except (KeyboardInterrupt, SystemExit):
	// Get me out of here
	exit()

Makistos / subprocess-with-eh.py

Created February 1, 2017 14:21

Run commands in shell with error handling. #python #subprocess

	#!/usr/bin/python

	def tryUrl(url):
	try:
	# check_output returns output from command so it could be printed here
	subprocess.check_output('ping ' + url, shell=True)
	return 1
	except subprocess.CalledProcessError, e:
	print 'Connection failed, error: %s' % e.output
	return 0

Makistos / sqlite3.py

Last active January 23, 2017 11:30

Sqlite3 with Python. #python #sqlite3 #database

	import sqlite3

	DB_FILE = 'database.db'

	def db_init():
	"""
	Initialize the sqlite3 database if it doesn't exist or the tables are
	missing..
	:return: n/a
	"""

Makistos / cleanlog.pl

Created December 15, 2016 08:07

Remove timestamps and process numbers from Android (both kernel and logcat). This makes it easier to compare logs in e.g. Beyond Compare. #perl #android

	#!/usr/bin/perl

	# Clean up Android logs so that they are easier to compare.

	while(<>)
	{
	if (m/^\[/) {
	# Captured from UART
	if (m/^\[.+\]\s\d\d-\d\d/) {
	# Logcat

Makistos / hidden_word.py

Last active December 15, 2016 08:10

Given a word, check which lines of text in a file contain all the letters in that word. Takes two parameters: file name with the lines of text and the letters to search. #python #hidden-word #list-comprehension

	# Slurp file into list
	with open(sys.argv[1]) as f:
	names = f.read().splitlines()

	to_search = sys.argv[2].lower()

	answer = [x for x in names if all(True if to_search.count(item) <= x.lower().count(item) else False for item in set(to_search))]

	print answer

Makistos / checkpatch.sh

Created December 14, 2016 12:10

Run checkpatch on latest kernel change. Run in kernel root. #bash #linux

git diff HEAD~1..HEAD | perl scripts/checkpatch.pl --no-signoff --ignore NONBLANK_AFTER_SUMMARY -

Makistos / cmd-args.py

Created October 7, 2016 13:30

Argparse example. #python #argparse #command-line

	#!/usr/bin/python

	import sys
	import argparse
	import pprint

	def read_params(args):
	p = argparse.ArgumentParser(epilog='TAG is required for db operations '
	'but can also be used without them. In that case files are named using '
	'it. It can also be omitted in which case results are only written to '

Marko Makistos