skanev

#!/usr/bin/env ruby

# A sneaky wrapper around Rubocop that allows you to run it only against
# the recent changes, as opposed to the whole project. It lets you
# enforce the style guide for new/modified code only, as opposed to
# having to restyle everything or adding cops incrementally. It relies
# on git to figure out which files to check.
#
# Here are some options you can pass in addition to the ones in rubocop:
#

skanev

Hacky syntax highlighting in git diff

Normally git diff would color additions green and deletions red. This is cool, but it would be even cooler if it adds syntax highlighting to those lines. This is a git pager that does so.

It parses the diff output and picks up the SHAs of files with additions and deletions. It uses [CodeRay][coderay] to highlight each file and then it extracts the lines that are shown in the diff. It then uses [term/ansicolor][color] to make a gradient from the CodeRay color and the diff color (red for deletion, green for addition) and uses it to replace the original.

I tried using rugged instead of shelling out to git show – it was faster overall, but it did incur a noticeable start up time.

Check out the image below for a demo.

skanev

Chronicle

I’m building an app on Twitch. Here’s an outline of what’s going on. You watch here.

Motivation

I’d like make a non-trivial web application that is both (1) useful to me on a daily basis and (2) I can use as a test-bed for experimentation with different tech. Functionality-wise, I imagine it will end up being a smörgåsbord of things I need (calories/exercise tracking, expense tracking, simple notes, todo lists, daily habits, what have you). Tech-wise, it will start as a classic Rails app, but once this is done, I might do things like:

• Create a GraphQL API and build a React SPA front end
• Build separate mobile clients with iOS, Android, React Native, Flutter, etc.

skanev

command! CloseHiddenBuffers call s:CloseHiddenBuffers()
function! s:CloseHiddenBuffers()
  let open_buffers = []

  for i in range(tabpagenr('$'))
    call extend(open_buffers, tabpagebuflist(i + 1))
  endfor

  for num in range(1, bufnr("$") + 1)
    if buflisted(num) && index(open_buffers, num) == -1

skanev

import {useEffect, useState} from 'react'
import {
  combineLatest,
  debounceTime,
  distinctUntilChanged,
  filter,
  from,
  fromEvent,
  map,
  Observable,

skanev

import Foundation
import RxSwift
import RxRelay
import Apollo

// MARK: - Apollo Support

enum ApolloError: Error {
  case genericError(String)
  case graphqlErrors([GraphQLError])

skanev

Advent of Code 2022 solutions in Perl Ruby

Just for kicks, I'm trying to solve them with semi-golfed Ruby. That is:

• As short as possible, but
• Have some whitespace to make them somewhat readable
• Avoid single-letter identifiers to keep them somewhat readable
• Don't make them too short when they are short enough

Each solution parses the input file and outputs the answer.

skanev

console.log('baba')

// 1. Literal types
{
  let meta: 'foo' = 'foo'

  meta = 'foo'
  // @ts-expect-error
  meta = 'bar'

skanev

Hacky syntax highlighting in git diff

Normally git diff would color additions green and deletions red. This is cool, but it would be even cooler if it adds syntax highlighting to those lines. This is a git pager that does so.

It parses the diff output and picks up the SHAs of files with additions and deletions. It uses [CodeRay][coderay] to highlight each file and then it extracts the lines that are shown in the diff. It then uses [term/ansicolor][color] to make a gradient from the CodeRay color and the diff color (red for deletion, green for addition) and uses it to replace the original.

I tried using rugged instead of shelling out to git show – it was faster overall, but it did incur a noticeable start up time.

Check out the image below for a demo.

skanev

# Autocomplete from current tmux screen buffer
_tmux_pane_words() {
  local expl
  local -a w
  if [[ -z "$TMUX_PANE" ]]; then
    _message "not running inside tmux!"
    return 1
  fi
  w=( ${(u)=$(tmux capture-pane \; show-buffer \; delete-buffer)} )
  _wanted values expl 'words from current tmux pane' compadd -a w