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Christopher Piekarski chris-piekarski

  • Boulder, CO
  • 15:44 (UTC)
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chris-piekarski / wsl_read_only
Created March 5, 2024 19:10
WSL stuck in read only filesystem
(Get-ChildItem -Path HKCU:\Software\Microsoft\Windows\CurrentVersion\Lxss | Where-Object { $_.GetValue("DistributionName") -eq 'Ubuntu' }).GetValue("BasePath") + "\ext4.vhdx"
wsl --shutdwon
wsl.exe --mount <path-to-ext4.vhdx> --vhd --bare
wsl -d Ubuntu -e sudo fsck -y /dev/sda
chris-piekarski /
Created August 26, 2023 22:22
Apex Engineers In The Arena
import re
import random
def binary_logic_choice(options):
# Randomly choose option A or B
choice_A_or_B = random.choice(["A", "B"])
choice = options.get(choice_A_or_B, "")
# Implementing binary digital logic to decide if option C should be picked
pick_A = random.choice([True, False])
alias randman='dir="/bin"; man $(ls $dir |sed -n "$(echo $(( $RANDOM % $(ls $dir |wc -l | awk "{ print $1; }" ) + 1 )) )p")'
chris-piekarski / build_opencv_ARM_cross
Created March 23, 2020 05:05 — forked from hrshovon/build_opencv_ARM_cross
Cross compile opencv3.3.0 for your raspberry pi and similar ARM devices with python support
This is a note on how to cross compile opencv for pretty much any ARM device(HardFP supported in this case) and deploy. Native
compiling in ARM devices can be painfully slow and they seem to hang often during build(mine got stuck at 43%). So if you happen
to have a desktop/laptop/server running ubuntu or similar linux distro, u can build opencv in fractionth of the time taken for
native compiling without any issues.
Building opencv3 with TBB and NEON and VFP support can boost opencv performance. Thanks to Adrian at pyimagesearch for pointing
that out.
Both my PC and target machine aka orange pi zero are running ubuntu 16.04 with python2.7 and python 3.5.
Let us use the term "build machine" for your PC where you are building opencv and "target machine" for the ARM single board computer.
1.Run the following commands in both machines(I think installing these in target machine only would do) to install the necessary libraries etc.(mine worked with them,so they should be enough
chris-piekarski / pre_commit_reject_wildcard_imports
Created February 27, 2019 19:10
Git pre-commit hook to check for wildcard imports
# cp to .git/hooks
# chomd +x .git/hooks/pre_commit
# This hook checks for wildcard imports (other than kotlinx) when added to staging.
# TODO: add ktlint check
chris-piekarski / size_up_tensorflow
Created January 31, 2019 00:53
current line count for tensorflow
Python 2.7.12 (default, Nov 12 2018, 14:36:49)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import rglob
>>> rglob.lcount("/media/chris/UBNT/tensorFlowExample/tensorflow","*.py")
>>> rglob.lcount("/media/chris/UBNT/tensorFlowExample/tensorflow","*.java")
chris-piekarski / basic_file_nano_template
Last active November 26, 2018 22:57
Using NanoHTTPD in Android
Add your index.html file to res/raw
Add dep to app gradle file:
dependencies {
implementation 'org.nanohttpd:nanohttpd-webserver:2.3.1'
Java class file:
import fi.iki.elonen.NanoHTTPD;
chris-piekarski / gist:78284318cbad31d7fb92f8200213cec9
Created August 24, 2018 20:49
GPLv2 Git Patch Sharing Stripper
#create patches from author(s) into one without comments
#good for GPLv2 sharing
for c in `git log --format=format:%H --author=chris`;do git format-patch --stdout --format=format:%H --no-stat -1 $c;done | tee stuff.patch
chris-piekarski / bash_pic_convert
Created April 22, 2018 03:30
Convert images to 720p
for f in ./*.*;do convert -resize 1280x720 $f ./720p/$f; done
chris-piekarski / repo_grep_logs_by_author
Last active February 27, 2018 19:08
Grep all AOSP repos commit messages by author
repo forall -c git log --grep="partition" --author=Chris
repo forall -c 'echo $REPO_PATH; git log --grep "partition" --author=Chris'