Collection of personal random snippets and cheatsheets

Non-tech

• reminder-am-pm-times.rst: a cheatsheet for the unintuitive AM/PM times
• street-numbers/: find in what direction street number increase by looking at a single number

Text

• borgbackup-samples.md: examples of how to use borgbackup
• commands-with-sub-manual-pages.yml: commands which have dedicated sub manual pages for subcommands
• howto-do-shellextension-with-qt: an old tutorial on how to implement windows shell extension in qt, for example to overlay icons in explorer.exe
• reminder-ssh-controlmaster-option.md: reminder for ssh's ControlMaster
• xdg-variables-cheatsheet.md: XDG_* variables cheatsheet
• xscreensaver-theme-colors/: cheatsheet of theme configuration resources for xscreensaver

C++

• asciitree.cpp: C++ example to hardcode tree structures that look like trees in source
• diy-QReadWriteLock.cpp: for qt, DIY implementation of qreadwritelock
• diy-strong-ptr-and-weak-ptr.cpp: DIY implementation of strong and weak pointers

Config

• todotxt.nanorc: nano syntax coloring for todo.txt format

gitlab-ci

• cache-for-debian-based-images.gitlab-ci.yml: snippet for caching Debian packages to avoid re-downloading them
• cache-for-python.gitlab-ci.yml: snippet for caching pip packages to avoid re-downloading them

Javascript

• break-url-bar.html: somehow break URL bar display
• greasemonkey/deliveroo: in greasemonkey/violentmonkey js, various scripts to make deliveroo site a bit less painful
• greasemonkey/round-prices.user.js: in greasemonkey/violentmonkey js, round numeric values on any web page, for example replace "9.99€" to "~10€"
• greasemonkey/reddit-ignoreusers.user.js: in greasemonkey/violentmonkey js, hide topics created by some (configurable) users

Python

• always_sorted_list.py: a list data structure whose values are always sorted (if the values are immutable)
• ansi_box.py: toy library for drawing stuff with ansi sequences
• autoimport-pyqt5.toml: autoimport config for PyQt5 imports and its generator script
• better_sum.py: improving on python's sum builtin to accept non number types, like lists or timedeltas
• cheap_sqlite_schema_migration.py: for python sqlite, cheap snippet of how to performed versioned database migrations (schema or not)
• collections-abc-classes.md: Mermaid diagram showing collections.abc classes with abstract methods and mixins
• enum-reminder.py: reminder on enums
• gfs-backup-rotation-algorithm.py: GFS (Grandfather-father-son) backup rotation scheme
• gitlab-delete-your-comments.py: delete all of your MR comments on a Gitlab instance
• graphql-queries.py: perform GraphQL queries/mutations
• human_sorted_filenames.py: sort filenames "for humans", not merely with ASCII order
• intervals.py: data structure to hold intervals
• merge-docker-compose-files.py: merge several docker-compose.yml files together
• merge_iterables.py: python function to merge several sorted iterables into a single big sorted iterable, on the fly
• os_walk_no_xdev.py: wraps os.walk() but doesn't enter mountpoints/other filesystems
• pyproject-snippets.md: pyproject.toml snippets
• pytest-kludgy-parametric-fixtures: for python's pytest, snippet of an alternate way to do parametric fixtures, within different directories
• re-empty-none.py: the re module can sometimes return matches with empty values or None
• requests-get-server-ip-in-response.py: for requests lib, how to get the server ip address in the Response object
• unpack-dict-params-to-pydantic.py: for pydantic lib, decorator to convert json arguments to objects automatically
• uuidv7-range.py: range of UUIDv7 values between 2 timestamps, for example for partitioning

sh

• add-containers-in-hosts-file.sh: add docker container addresses in /etc/hosts, with the container names
• date-in-email-header-format-rfc2822.sh: print date in rfc2822 format (suitable for email headers), also useful for any strftime implementation
• example-chezmoi-conf-in-docker.sh: how to export your chezmoi dotfiles and import them easily in a docker container
• examples-of-how-cool-is-sponge.sh: examples of how cool is sponge(1)
• find-permissions.sh: small GNU find(1) snippets for dealing with permissions
• grep-exit-codes.md: what exit code will grep use?
• guru-meditation.sh: generate colored ANSI "guru meditation" banner using POSIX sh and tput
• interactive-topydo-with-fzf.sh: create an interactive UI for topydo with fzf
• refresh-topydo-auto-with-entr.sh: refresh automatically topydo (todo.txt) display using entr
• remove-all-osx-cache-dirs.sh: remove all __MACOSX cache dirs with locate and xargs
• sysexits-values.sh: standard exit(1) code constants
• ttrss-to-shaarli.sh: script to export ttrss starred articles and import them in Shaarli
• xclip-or-xsel.sh: mini-cheatsheet to xclip and xsel (manipulate X11 clipboard from command-line)

zsh

• find-termcap-name.zsh: take a key as input, then print the corresponding termcap name
• options-status.zsh: show current status of all options (think setopt/unsetopt)
• print-all-termcaps.zsh: print all termcap names and values (in hex, with xxd(1), for readability)
• print-associative.zsh: print keys and values of an associative array zsh variable
• remove-empty-files-with-glob-quals.zsh: using glob quals (metadata matching), remove empty files
• zmv-rename-files-keeping-their-extension.zsh: using zmv, rename files and keeping their extension

All content here is licensed under the UNLICENSE. See UNLICENSE file.