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Diffstat (limited to 'configs/shared/functions.zsh')
| -rw-r--r-- | configs/shared/functions.zsh | 1264 |
1 files changed, 1264 insertions, 0 deletions
diff --git a/configs/shared/functions.zsh b/configs/shared/functions.zsh new file mode 100644 index 0000000000..cae434274e --- /dev/null +++ b/configs/shared/functions.zsh @@ -0,0 +1,1264 @@ +# NOTE: All functions should be documented. Including usage examples. +# NOTE: Prioritize the error handling (especially error messages) as highly as +# most people prioritize "happy-paths" (aka features). + +################################################################################ +# Personal dependencies +################################################################################ + +source ~/Dropbox/programming/db_cli/src/index.zsh + + +################################################################################ +# Documentation and error messages +################################################################################ + +# TODO: Move these to their own repository. + +echo_info() { + # Echos an informational message. + # + # depends_variable blue + echo -e "${blue}[INFO]: $1" +} + +echo_warn() { + # Echos a warning message. + # This function depends on the colors defined in variables.zsh. + # + # depends_variable yellow + echo -e "${yellow}[WARNING]: $1" +} + +echo_error() { + # Echos an error message. + # + # depends_variable red + echo -e "${red}[ERROR]: $1" +} + +unsupported_input() { + # Generic error message. Consume herein to standardize the error messages. + # Pass the supported inputs as $1. + # + # depends error_error + echo_error "Unsupported input. This function only supports the following inputs: $1. Exiting..." +} + +depends() { + # Prints a message explaining a function's dependencies. Consume here to + # standardize the error messages. + # Pass the dependencies as $1. + # + # depends echo_info + echo_info "This function depends on the following functions: $@" +} + +depends_variable() { + # Prints a message explaining a dependency on a variable. Consume here to + # standardize the error messages. + # Pass the dependencies as $1. + # + # depends echo_info + echo_info "This function depends on the following variables: $@" +} + +depends_alias() { + # Prints a message explaining a dependency on a shell alias. Consume here to + # standardize the error messages. + # Pass the dependencies as $1. + # + # depends echo_info + echo_info "This function depends on the following aliases: $@" +} + +compliments() { + # Prints a message explaining that a function compliments another function. + # Think of complimentary functions as `zip` and `unzip`. + # + # depends echo_info + echo_info "This function compliments the \`$1\` function." +} + + +################################################################################ +# Filesystem operations +################################################################################ + +tar_dir() { + # Tars dir as dir.tar. Removes dir. + # compliments untar_dir + tar -cf "$1.tar" "$(basename $1)" && rm -rf "$1" +} + +untar_dir() { + # Untars dir.tar as dir. Removes dir.tar. + # compliments tar_dir + tar -xvf "$1" && rm "$1" +} + +targz_dir() { + # Tars a dir as dir.tar.gz. + # compliments untargz_dir + tar -czf "$1.tar.gz" "$(basename $1)"; rm -rf "$1" +} + +untargz_dir() { + # Untars dir.tar.gz as dir. Removes dir.tar.gz. + # compliments targz_dir + tar -xzvf "$1" && rm "$1" +} + +zip_dir() { + # Zips dir as dir.zip. Removes dir. + # compliments unzip_dir + zip -r "$1.zip" "$(basename $1)" && rm -rf "$1" +} + +unzip_dir() { + # Unzips dir.zip as dir. Removes dir.zip. + # compliments zip_dir + unzip "$1" && rm "$1" +} + +archive() { + # Generic function for archiving directories + # + # depends tar_dir targz_dir zip_dir + # compliments unarchive + printf "Which type of archive would you like to like create? (tar, tar.gz, zip) " + case $(read -e) in + tar) tar_dir "$1";; + tar.gz) targz_dir "$1";; + zip) zip_dir "$1";; + *) unsupported_input "tar, tar.gz, zip";; + esac +} + +unarchive() { + # Generic way to unarchive files. + # Currently supports the following extensions: + # - .tar + # - .tar.gz + # - .zip + # + # depends untar unzip + # compliments archive + case $1 in + *.tar.gz) untargz_dir "$1";; + *.tar) untar_dir "$1";; + *.zip) unzip_dir "$1";; + *) unsupported_input ".tar, .tar.zip, .zip" + esac +} + + +################################################################################ +# Filesystem operations +################################################################################ + +alert() { + # Send the user information via the GUI. + # Intended to have the same API as the Javascript alert function. + # Usage: alert [msg-body] + # depends notify-send + notify-send 'Info' "$1" +} + +alert_echo() { + # Composes `echo` and `alert` together. + # Usage: alert_echo [msg-body] + # depends alert echo + echo "$1" && alert "$1" +} + + +################################################################################ +# Unclassified +################################################################################ + +deref() { + # Dereferences a symlink. + # Usage: deref [symlink] + if ! [ -L $1 ]; then + echo_error "File is not a symlink: $1. Exiting..." + else + local src=$(readlink -f $1) + echo "Moving $src -> $1" && \ + mv $1 $1.bak && \ + mv $src $1 && \ + rm $1.bak + fi +} + +wallpaper() { + # Select and load a wallpaper from the wallpaper directory. + local files=$(ls ~wallpaper) + local selection=$(echo $files | fzf) + local fullpath=~wallpaper/$selection + + feh --bg-scale $fullpath +} + +# TODO: Write more robust, tested dotfile manager application in Elisp. +dotfilify() { + # Moves a regular, non-symlinked file into my dotfiles. + # compliments undotfilify + local original_path=$(realpath $1) + # Trim $HOME prefix + local dotfile_path="${DOTFILES#$HOME/}/configs/shared/${original_path#$HOME/}" + + mv $original_path $dotfile_path && ln --force -s $dotfile_path $original_path +} + +# TODO: Write more robust, tested dotfile manager application in Elisp. +undotfilify() { + # De-references a file that is symlinked to in my dotfiles. + # Usage: undotfilify [path-to-symlink] + # compliments dotfilify + + if ! [ -L "$1" ]; then + echo_error "Not a symbolic link: $1. Exiting..." + return 1 + else + local src=$(readlink -f $1) + + echo "Removing: $1" && rm $1 && \ + echo "Moving: $src -> $1" && \ + mv $src $1 + fi +} + +markdown() { + # Simple way to read markdown on the command-line. + # Usage: markdown [file] + # depends pandoc less + pandoc -t plain $1 | less +} + +rofi_prompt() { + # Simple prompt for user input using `rofi`. + # Usage: rofi_prompt [label] + local label="${1:-Input}" + rofi -dmenu -p "$label" -theme-str 'listview { enabled: false; }' +} + +import_gpg() { + # Shorthand for executing the import script for my GPG creds. + local gpg_config=$DOTFILES/configs/shared/gpg/.gnupg + $gpg_config/import.sh $gpg_config/exported +} + +export_gpg() { + # Shorthand for executing the export script for my GPG creds. + local gpg_config=$DOTFILES/configs/shared/gpg/.gnupg + $gpg_config/export.sh $gpg_config/exported +} + +create_bootable_usb() { + # This was created primarily to document the bootable USB creation process, so + # that I'm less dependent on internet solutions. + # Warning this is experimental. + printf 'Path to .iso: ' + local lf=$(read -e) # NOTE: maybe use `read lf` instead. + printf 'Path to USB: ' + local of=$(read -e) + + sudo dd \ + bs=4M \ + if="${lf}" + of="${of}" + status=progress \ + iflag=sync +} + +file_sizes() { + # Table to help me conceptualize file sizes. + echo " 1 kB\tHalf a page of raw text" + echo " 8 kB\tLogo image" + echo "500 kB\t5-page word processor document" + echo " 1 MB\t1 minute MP3" + echo " 5 MB\t3 minute MP3" + echo "700 MB\tA full CD-ROM" + echo " 4 GB\tA full DVD" +} + +ldap() { + # Returns the Google LDAP for `user` + declare -A ldaps + ldaps["ahmed"]=ahmedhegazy + ldaps["arturo"]=arturog + ldaps["daniel"]=dsipasseuth + ldaps["dirichi"]=dirichi + ldaps["jack"]=jackwootton + ldaps["jon"]=jonmatthews + ldaps["micheal"]=michealg + ldaps["rose"]=roseanna + ldaps["william"]=wpcarro + + echo ${ldaps["$1"]} +} + +repl_closure() { + # Creates a `node` REPL for users to test out Google's Closure library. + # The naming `repl_closure` follows the repl_ convention that alias.sh + # follows. + docker build -t closure_repl - <~/programming/dockerfiles/closure_repl.docker + docker run -it closure_repl:latest +} + +checkout_cl() { + # - find-or-create a new workspace named `cl-<number>` + # - syncs the workspace to tip + # - patches the CL ontop of tip + hg citc "cl-$1" && \ + g4d "cl-$1" && \ + hg sync && \ + hg patch "cl/$1" +} + +prodaccess() { + # Wraps existing `prodaccess` command to provide Google-specific tips. + # Take from this: https://g3doc.corp.google.com/experimental/users/diamondm/fortunes/README.md?cl=head + command prodaccess "$@" && \ + cowsay $(/google/data/ro/users/di/diamondm/engfortunes/fortune.sh --extra_space) +} + +home_theater() { + # Does the following: + # - connects to NordVPN for HBO + # - connects to the TV via the attached HDMI cable + # - connects to the bluetooth speaker + + # `nordvpn` is an alias defined in `aliases.zsh` + echo 'Run the following to stream HBOGo from this laptop to your TV:' + echo ' 1. nordvpn' + echo ' 2. xrandr --output HDMI1 --mode 3840x2160' + echo ' 3. bluetoothctl' + echo ' 4. connect CC:6E:A4:32:6B:BB' + echo + echo 'Having trouble? Use the following tools to troubleshoot:' + echo ' - blueman-manager' + echo ' - pavucontrol' + echo ' - gnome-control-center' +} + +create_citc() { + # Creates an `hg` citc client and `cd`s to its root. + # Usage: create_citc esc-b-119275355 + # Note: May want to get into the habit of naming citc clients after the + # Buganizer tickets. The buganizer portion can be prefixed with the shorthand + # representation of the project it relates to. This coupling could lead to + # more integrated tooling. + hg citc $1 && g4d $1 +} + +fv() { + # Usage: fv file pattern + # This is useful when you know the fuzzy name of the file you want to edit + local file + file="$(fzf --exact --height 40% --reverse --query="$1" --select-1 --exit-0)" + [[ -n "$file" ]] && vim "$file" +} + +project_root() { + # Changes to the directory of the project root. + if [[ "$(pwd)" =~ '(.*)/blaze-bin(.*)' ]]; then + cd "${match[1]}${match[2]}" + elif [[ "$(pwd)" =~ '(.*)/blaze-genfiles(.*)' ]]; then + cd "${match[1]}${match[2]}" + fi +} + +blaze_bin() { + # Changes to the blaze-bin directory. + # Depends: + # - project_root + project_root && cd "${PWD/\/google3//google3/blaze-bin}" +} + +blaze_genfiles() { + # Changes to the blaze-genfiles directory. + # Depends: + # - project_root + project_root && cd "${PWD/\/google3//google3/blaze-genfiles}" +} + +tbz() { + # Toggle between blaze-bin and your source. + # Useful if you like to cd into the dir where your source lives. + if [[ "$(pwd)" =~ '(.*)/blaze-bin(.*)' ]]; then + cd "${match[1]}${match[2]}" + else + cd "${PWD/\/google3//google3/blaze-bin}" + fi +} + +tj() { + # Toggle between the source dir and test dir in a Java project. + if [[ $PWD =~ '(.*)/javatests(.*)' ]]; then + cd "${match[1]}/java${match[2]}" + else + cd "${PWD/\/google3\/java//google3/javatests}" + fi +} + +screenshot() { + # Ergonomic way to take a screenshot. + # Writing this since I usually forget the command. + # Usage: screenshot + alert_echo 'Click-and-drag to select the region to capture.' + local filepath=$(scrot --select '%Y-%m-%d_$wx$h.png' -e 'mv $f /tmp && echo /tmp/$f') + c <<<$filepath + alert_echo "Copied to clipboard!" +} + +snipit() { + # Take a screenshot and host it at https://screenshot.googleplex.com + # Adapted from SnipIt to fit my workflow. + # depends alert_echo + # TODO: Ensure C-c works with i3 integration. + server="https://screenshot.googleplex.com/upload" + file="${TEMP:-/tmp}/snipit_temp_$$.png" + + # Capture + alert_echo "SnipIt - Click a window, or drag to snip a region (Ctrl+C to cancel):" && \ + import "$file" && \ + echo "Sending image to server..." && \ + uri=$(curl -sF "imagedata=@$file" $server) && \ + c <<<"$uri" && \ + alert_echo "Copied to clipboard!" +} + +# Java +run_java() { + # Usage: run_java path/to/file.java + # Intended to be similar in spirit to Haskell's `runhaskell`. + set -e + javac $1 + java ${1%.java} +} + +# Aptitude +apts() { + # Searches aptitude package repository for $1, surrounding it in ^$ to ensure + # fewer results. + apt search "^$1$" +} + +# Docker +dkcsh() { + # Drop into a Docker shell. Shell defaults to /bin/bash. + # `dkcsh` stands for DocKer Container SHell. + # Usage: dkcsh + container=$1 + cmd=${2-/bin/bash} + + docker exec -it "$container" "$cmd" +} + +dkish() { + # Runs a Docker container interactively + # Usage: dkrit <container_name> <command> [...args] + docker run -it $@ +} + +# Emacs +dired() { + # Opens either the `$(pwd)` or `$1` in Emacs's `dired`. + # Uses i3 to focus Emacs. + directory=${1:-$(pwd)} + echo $directory + emacsclient --eval "(dired \"$directory\")" && focus Emacs +} + +emacsclient_floating() { + # Creates an Emacs frame that i3 will float. + # All additional arguments are forwarded to `emacsclient`. + # Usage: emacs_floating [...additional-args] + # depends emacsclient + emacsclient \ + --create-frame \ + --frame-parameters '(quote (name . "floating"))' \ + "$@" +} + +org_capture() { + # Spawns an Emacs frame running org-capture. + # Usage: org_capture + # depends emacsclient_floating + emacsclient_floating --eval '(org-capture)' +} + +# gist +gistp() { + # Creates a gist with the contents of the clipboard. + # Prompts the user for the filename and the descriptions of the gist. + # Copies the Gist URL to the user's clipboard thereafter. + # + # depends_alias p + # depends gist + printf "Filename including extension: " + read filename + printf "Gist description: " + read description + p | gist -e -f $filename -d $description +} + +# Github +gh_create() { + # Create git repository in `~/Dropbox/programming`. + # Push repo to my github account. + # Usage: grepo [repo-name] + # depends_alias mdd g + # compliments gh_delete + + if [ $# -eq 0 ]; then + echo 'You must supply the name for the repo. Exiting...' + return 1 + else + mdd "$HOME/Dropbox/programming/$1" && \ + g init && \ + g create + fi +} + +gh_delete() { + # Deletes a repository from my Github. + # compliments gh_create + + if [ $# -eq 0 ]; then + echo 'You must supply the name for the repo to delete. Exiting...' + return 1 + else + g delete "$1" + fi +} + +# Git + +gconflicts() { + # Edit git conflicts one-by-one in your favorite editor. + ${EDITOR} "$(git status --porcelain | awk '/^UU/ { print $2 }')" +} + +gclone() { + # Since I inevitably always call `cd` after `g clone`. + # Usage: gclone cdown/clipmenu + # depends_alias g + # depends_alias la + g clone "$1" && cd "${1#*/}" +} + +# GPG +_do_encrypt() { + # Helper function for `encrypt`. + # depends gpg targz_dir + echo "Encrypting..." + + if [ -f $1 ]; then + gpg --encrypt --recipient=wpcarro@gmail.com $1 + rm $1 + + elif [ -d $1 ]; then + targz_dir $1 + # NOTE: recursion is nice here but it causes the echo statements to happen + # twice. Because of this, we redirect to /dev/null. + _do_encrypt "$1.tar.gz" >/dev/null + fi + + echo "Done." +} + +_do_decrypt() { + # Helper function for `decrypt`. + # depends gpg untargz_dir + echo "Decrypting..." + + gpg --decrypt $1 2>/dev/null >"${1%.gpg}" + rm $1 + + # If the file ends with tar.gz, it was most like a directory that we targz'd + # then encrypted. + if [[ "${1%.gpg}" =~ \.tar.gz$ ]]; then + untargz_dir "${1%.gpg}" >/dev/null + fi + + echo "Done." +} + +encrypt() { + # Convenience function around encrypting files and directories. + # Appends a .gpg extension and deletes the unencrypted source. + # depends _do_encrypt + for f in $@; do + _do_encrypt $f + done +} + +decrypt() { + # Convenience function around decrypting .gpg files and directories. + # Deletes the original encrypted file with the .gpg extension. + # depends _do_decrypt + for f in $@; do + _do_decrypt $f + done +} + +# Python +python_sandbox() { + # Creates a nix-shell with the specified arguments as Python packages + nix-shell -p "python36.withPackages(p: with p; [$@])" +} + +# Haskell +cabal_unhell() { + # Run this function to save yourself from Cabal hell. + # Note: this will require that you reinstall packages for your projects again. + find ~/.ghc -maxdepth 1 -type d -exec rm -rf {} \; + rm -rf ~/.cabal/{lib,packages,share} +} + +haskell_sandbox() { + # Creates a nix-shell with the specified arguments as Haskell packages + nix-shell -p "haskellPackages.ghcWithPackages (p: with p; [$@])" +} + +_haskell_test_watch_path() { + # Runs and watches the tests for a provided file path. + ghcid -c "stack ghci grid:lib grid:grid-test --ghci-options=-fobject-code" \ + --height="$(tput lines)" --width="$(tput cols)" --warnings --test "$1" +} + +_haskell_test_watch_pattern() { + # Runs and watches the tests that match a provided pattern. + stack test --file-watch grid:grid-test --ta "-p \"${1}\"" +} + +haskell_test_watch() { + # Accepts either a filepath or a pattern and runs a test-watcher for either. + if [ -f "$1" ]; then + _haskell_test_watch_path "$1" + else + _haskell_test_watch_pattern "$1" + fi +} + +# Kubernetes +kush() { + # Drop into a shell via Kubernetes. Shell defaults to /bin/bash. + local name=$1 + local cmd=${2-/bin/bash} + + kubectl exec -it "${name}" -- "${cmd}" +} + +# Misc +update_x11_forwarding() { + # Sometime Tmux misbehaves with X11 applications (e.g. Emacs). This is because + # the DISPLAY variable is not set properly to `:0`. This function w + # Cache the DISPLAY when outside of Tmux. When inside of Tmux, use the cached + # value for DISPLAY. + # + # This cooperates with my `preexec` function, which runs before every command. + # Adapted from here: http://alexteichman.com/octo/blog/2014/01/01/x11-forwarding-and-terminal-multiplexers/ + if [ -z "$TMUX" ]; then + echo $DISPLAY > ~/.display.txt + else + export DISPLAY=$(cat ~/.display.txt) + fi +} + +monzo_balance() { + # Return the balance of my Monzo bank account. Intended to be used in my i3 + # status bar. + # Usage: monzo_balance + # Depends: + # - ~/Dropbox/monzo_creds.json.gpg (encrypted asymmetrically for yourself) + # - httpie + # - jq + # - gpg + local creds=$(gpg --decrypt ~/Dropbox/monzo_creds.json.gpg 2>/dev/null) + local access_token=$(echo $creds | jq --raw-output .access_token) + local account_id=$(echo $creds | jq --raw-output .account_id) + local balance=$(http --body https://api.monzo.com/balance \ + "Authorization: Bearer ${access_token}" \ + "account_id==${account_id}" | \ + jq .balance) + + echo "£$balance" +} + +tldr_docs() { + # Helper function for submitting a new page to `tldr`. + # Usage: tldr_docs <cmd-name> + pushd ~/programming/tldr && \ + gcb "$1" && \ + "$EDITOR" . && \ + echo "Next steps:" && \ + echo "- commit changes" && \ + echo "- push changes" && \ + echo "- submit a pull-request to tldr" && \ + popd # return to the original directory +} + +ord_to_char() { + # Converts the ordinal, ASCII value of a character into its encoded + # representation. + # + # Usage: + # $ ord_to_char 65 + # A + [ "$1" -lt 256 ] || return 1 + printf "\\$(printf '%03o' "$1")\n" +} + +char_to_ord() { + # Converts the ASCII representation of a character to its ordinal value. + # + # Usage: + # $ char_to_ord A + # 65 + LC_CTYPE=C printf '%d\n' "'$1" +} + +all_users() { + # Lists all of the known users in the Linux system + # Useful because when you type `~art` in a prompt and tab-complete, ZSH looks + # up all users whose names start with "art". It's also just interesting to + # have access to this information. + # + # NOTE: this is not as simple as `cat /etc/passwd` for reasons of which I'm + # not entirely sure. + getent passwd +} + +escape_sequences() { + # Outputs a table of terminal escape sequences and their meaning. + echo -E '\a Bell (alert)' + echo -E '\b Backspace' + echo -E '\f Formfeed' + echo -E '\n New line' + echo -E '\r Carriage return' + echo -E '\t Horizontal tab' + echo -E '\v Vertical tab' + echo -E "\' Single quotation mark" + echo -E '\" Double quotation mark' + echo -E '\\ Backslash' + echo -E '\? Literal question mark' + echo -E '\uhhhh Unicode character' + echo -E '\Uhhhhhhhh Unicode character' + echo -E '\xhh ASCII character in hexadecimal notation' + echo -E '\xhhhh Unicode character in hexadecimal notation if this escape sequence is used in a wide-character constant or a Unicode string literal.' +} + +test_true_color() { + # Run this to test if your terminal emulator supports True Color + curl --silent https://raw.githubusercontent.com/JohnMorales/dotfiles/master/colors/24-bit-color.sh | bash +} + +test_16_colors() { + # Useful for testing your terminal's theme. + echo -e "Normal: ${black}black${red}red${green}green${yellow}yellow${blue}blue${magenta}magenta${cyan}cyan${white}white" + echo -e "Bright: ${bright_black}black${bright_red}red${bright_green}green${bright_yellow}yellow${bright_blue}blue${bright_magenta}magenta${bright_cyan}cyan${bright_white}white" +} + +test_text_formatting() { + # Useful when appraising a Tmux. Things can get strange with true colors and + # font rendering. + echo -e "\e[1mbold\e[0m" + echo -e "\e[3mitalic\e[0m" + echo -e "\e[4munderline\e[0m" + echo -e "\e[9mstrikethrough\e[0m" +} + +test_unicode() { + # Run this to test if your terminal supports unicode character rendering. + echo -e '\u2600 \u2601 \u2602 \u2603 \u2604 \u2605 \u2606 \u2607 \u2608 \u2609 \u260A' + echo -e '\u260B \u260C \u260D \u260E \u260F \u2610 \u2611 \u2612 \u2613 \u2614 \u2615' + echo -e '\u2616 \u2617 \u2618 \u2619 \u261A \u261B \u261C \u261D \u261E \u261F \u2620' + echo -e '\u2621 \u2622 \u2623 \u2624 \u2625 \u2626 \u2627 \u2628 \u2629 \u262A \u262B' + echo -e '\u262C \u262D \u262E \u262F \u2630 \u2631 \u2632 \u2633 \u2634 \u2635 \u2636' + echo -e '\u2637 \u2638 \u2639 \u263A \u263B \u263C \u263D \u263E \u263F \u2640 \u2641' + echo -e '\u2642 \u2643 \u2644 \u2645 \u2646 \u2647 \u2648 \u2649 \u264A \u264B \u264C' + echo -e '\u264D \u264E \u264F \u2650 \u2651 \u2652 \u2653 \u2654 \u2655 \u2656 \u2657' + echo -e '\u2658 \u2659 \u265A \u265B \u265C \u265D \u265E \u265F \u2660 \u2661 \u2662' + echo -e '\u2663 \u2664 \u2665 \u2666 \u2667 \u2668 \u2669 \u266A \u266B \u266C \u266D' + echo -e '\u266E \u266F \u2670 \u2671 \u2672 \u2673 \u2674 \u2675 \u2676 \u2677 \u2678' + echo -e '\u2679 \u267A \u267B \u267C \u267D \u267E \u267F \u2680 \u2681 \u2682 \u2683' + echo -e '\u2684 \u2685 \u2686 \u2687 \u2688 \u2689 \u268A \u268B \u268C \u268D \u268E' + echo -e '\u268F \u2690 \u2691 \u2692 \u2693 \u2694 \u2695 \u2696 \u2697 \u2698 \u2699' + echo -e '\u269A \u269B \u269C \u269D \u269E \u269F \u26A0 \u26A1 \u26A2 \u26A3 \u26A4' + echo -e '\u26A5 \u26A6 \u26A7 \u26A8 \u26A9 \u26AA \u26AB \u26AC \u26AD \u26AE \u26AF' + echo -e '\u26B0 \u26B1 \u26B2 \u26B3 \u26B4 \u26B5 \u26B6 \u26B7 \u26B8 \u26B9 \u26BA' + echo -e '\u26BB \u26BC \u26BD \u26BE \u26BF \u26C0 \u26C1 \u26C2 \u26C3 \u26C4 \u26C5' + echo -e '\u26C6 \u26C7 \u26C8 \u26C9 \u26CA \u26CB \u26CC \u26CD \u26CE \u26CF \u26D0' + echo -e '\u26D1 \u26D2 \u26D3 \u26D4 \u26D5 \u26D6 \u26D7 \u26D8 \u26D9 \u26DA \u26DB' + echo -e '\u26DC \u26DD \u26DE \u26DF \u26E0 \u26E1 \u26E2 \u26E3 \u26E4 \u26E5 \u26E6' + echo -e '\u26E7 \u26E8 \u26E9 \u26EA \u26EB \u26EC \u26ED \u26EE \u26EF \u26F0 \u26F1' + echo -e '\u26F2 \u26F3 \u26F4 \u26F5 \u26F6 \u26F7 \u26F8 \u26F9 \u26FA \u26FB \u26FC' + echo -e '\u26FD \u26FE \u26FF' +} + +test_emojis() { + # Outputs a few emojis to see if your terminal supports colored or + # monochromatic emojis. + for n in {0..9} + do + echo -e -n "\U1F60$n" + done + echo # newline to clean output +} + +path() { + # Pretty-print the $PATH variable + echo "$PATH" | tr : '\n' +} + +nix_installed() { + # Lists the packages installed with `nix-env` + nix-env -q +} + +nix_store() { + # Print the packages in /nix/store without the preceding hash + ls /nix/store | sed 's/[a-z0-9]*-//' +} + +browse() { + # Open a URL in $BROWSER. Friendly for terminal input and output. + # NOTE: `nohup` ensures that if I close the terminal, I won't all kill the + # browser. Maybe this is similar to calling `disown %<job_id>`. The redirect + # to `/dev/null` ensures that no `nohup.out` file is created. + nohup "$BROWSER" $@ >/dev/null 2>&1 & +} + +lh() { + # Opens http://localhost:<port> in your $BROWSER. + # Usage: `lh 8080` + # Here, in case it wasn't obvious, `lh` stands for "localhost". + browse "http://localhost:$1" +} + +essids() { + # Returns a list of all ESSIDs the network card detects + local interface=${1-wlp4s0} + sudo iwlist "${interface}" scan | awk -F \" '{print $2}' | sed '/^\s*$/d' +} + +mkdir_cd() { + # Make and cd into a directory or path + mkdir -p "$1" && cd "$1" +} + +cp_dwim() { + # Calls `cp -r` when a directory is specified, otherwise uses `cp`. + # This is closer to the UX you expect in GUIs when you copy-and-paste files. + if [ -d $1 ]; then + command cp -r $@ + else + command cp $@ + fi +} + +swap() { + # Swaps the names of files and directories. + local file_a="${1}" + local file_b="${2}" + + if [ -d "${file_a}" ] && [ -d "${file_b}" ]; then + local backup=$(mktemp -d backup.XXX) + + mv "${file_a}" "${backup}" + mv "${file_b}" "${file_a}" + mv "${backup}/${file_a}" "${file_b}" + rm -rf "${backup}" + elif [ -f "${file_a}" ] && [ -f "${file_b}" ]; then + local backup=$(mktemp backup.XXX) + + mv "${file_a}" "${backup}" + mv "${file_b}" "${file_a}" + mv "${backup}" "${file_b}" + rm "${backup}" + fi + + echo "Swapped: ${file_a} <-> ${file_b}" +} + +bak() { + # Backup a file or a directory by appending a .bak extension to it. + mv "$1" "$1.bak" +} + +unbak() { + # Restore a file by removing the .bak extension from it. + mv "$1.bak" "$1" +} + +is_online() { + # Pings google.com and echos "Online" or "Offline" and returns the appropriate + # exit code. Could be useful in the ${PS1} variable. + wget -q --spider "http://google.com" + + if [ $? -eq 0 ]; then + echo "Online" + return 0 + else + echo "Offline" + return 1 + fi +} + +loop() { + # Continuously loop `command` every `sleep_amt` interval. `sleep_amt` defaults + # to 1 second. Pass y/n for `should_clear` if you'd like to clear the screen + # at the end of each iteration. + # Usage: loop <command> <sleep_amt> <should_clear> + local command=$1; + local sleep_amt=${2:-1}; + local should_clear=${3:-n} + + # clear the screen before kicking things off + if [ $should_clear = y ]; then + clear + fi + + while true; do + eval $command && sleep $sleep_amt + if [ $should_clear = y ]; then + clear + fi + done +} + +du_it_live() { + # Outputs and refreshes the size of a directory's content. + # Useful for watching a directory as large amounts of data are + # downloaded into it. + local directory="${1}" + + while true; do + du -hc "${directory}" | tail -n 1 | tr -d '\n' && echo -n ' ' && sleep 0.5 + + # elipsis + echo -n '.' && sleep 0.5 && + echo -n '.' && sleep 0.5 && + echo -n '.' && sleep 0.5 && + + # clear the three-dots + echo -n '\b\b\b' && echo -n ' ' && echo -n '\r' + done +} + +router() { + # Returns the IP address of the network's router. + # Useful in a call like `ping $(router)` to diagnose an internet problem. + netstat -nr | grep default | head -n 1 | awk '{ print $2 }' +} + +monitor_dimensions() { + # Outputs the dimensions of your computer monitor + xdpyinfo | awk '/dimensions/{ print $2 }' +} + +list_sinks() { + # Lists the available output sources (speakers?) + pacmd list-sinks | grep -e 'name:' -e 'index:' +} + +list_sources() { + # List available input sources (microphones?) + pacmd list-sources | grep -e 'index:' -e device.string -e 'name:' +} + +lt() { + # Convenience wrapper around `exa --tree`. + # Optionally accepts a number for the max-depth and a directory to list. + # $ lt 2 ./scripts + + # lt + if [ -z ${1} ]; then + exa --tree --all + + # lt 2 + elif [[ "${1}" =~ '^[0-9]+$' ]] && [ -z ${2} ]; then + local depth="${1}" + + exa --tree -all --level "${depth}" + + # lt ./scripts + elif [ -z ${2} ]; then + local directory="${1}" + + exa --tree --all "${directory}" + + # lt 2 ./scripts + else + local depth=${1} + local directory="${2}" + + exa --tree --all --level ${depth} "${directory}" + fi +} + +lad() { + # List only directories in a directory.. + # Usage: lad [directory] + # depends fd + (cd ${1:-.} && fd --hidden --maxdepth 1 --type d) +} + +laf() { + # List only files in a directory. + # Usage: lad [directory] + # depends fd + (cd ${1:-.} && fd --hidden --maxdepth 1 --type f) +} + +lal() { + # List only links in a directory. + # Usage: lad [directory] + # depends fd + (cd ${1:-.} && fd --hidden --maxdepth 1 --type l) +} + +gql() { + # Convenience wrapper around `http POST` that allows you write GQL queries in + # Vim before posting them to the server. + local endpoint="${1}" + local query="/tmp/http-query.gql" + + vim "${query}" && \ + echo "{\"query\":\"$(cat ${query})\"}" | \ + http --body POST "${endpoint}" +} + +# Nix +nix_introspect() { + # Greps through my local nixpkgs repo for + rg --after-context 5 "\\b$1\\b\\s*=" "$(nix-instantiate --find-file nixpkgs)" +} + +# Tmux +t() { + # Find or create a Tmux session. This should work both from within Tmux or + # outside of Tmux. + local session_name="${1}" + if ! tmux has-session -t "${session_name}" 2> /dev/null; then + local oldTMUX="${TMUX}" + unset TMUX + tmux new -d -s "${session_name}" -n "${session_name}" + export TMUX="${oldTMUX}" + unset oldTMUX + fi + if [[ -n "${TMUX}" ]]; then + tmux switch-client -t "${session_name}" + else + tmux attach -t "${session_name}" + fi +} + +tk() { + # `tk`: "tmux kill". Kills a tmux session by name. + # If no arguments are provided, kills the current session after jumping to the previous session. + session_name="${1}" + if [ ! -z "${session_name}" ]; then + tmux kill-session -t "${session_name}" + else + session_name=tmux ls -f '#{?session_attached,#{session_name},}' | xargs + tmux switch-client -l + tmux kill-session -t "${session_name}" + fi +} + +tmux_is_running() { + # Returns zero if tmux is running + # Although this is a simple function body, it's useful to encode esoteric + # knowledge that I will easily forget. + test -n "$TMUX" +} + +tmux_focused_pane() { + # Returns the ID of the focused tmux pane. + # WIP + # tmux list-panes -F '#{pane_active} #{pane_tty}' | awk /1/{ print $1 } + echo 'Not implemented' +} + +# Google3 +p4_filelog() { + # Logs a file's Piper history. This is a convenience wrapper around + # `p4 filelog`. + # `filename` should be a relative path. + # Usage: p4_filelog <filename> + # Depends: p4 + p4 filelog "//depot/$(pwd | grep -P -o 'google3\/.+$')/$1" +} + +citc_workspace() { + # Returns the name of your current CitC workspace + pwd | grep -o -P "$(whoami)\/[^\/]+" +} + +hgbrowse() { + # Attempts to open the current directory in Google's Code Search. + # Note: try and get this command supported by Fig + local slug="$(pwd | grep -P -o 'google3\/.+$')" + browse "https://cs.corp.google.com/piper///depot/$slug" +} + +cider() { + # Opens the current workspace and current directory in Google's Cider + # Not very useful at the moment because it cannot jump to the current file or + # line number. Should also support an Emacs integration at some point. + google-chrome \ + --app="https://cider.corp.google.com/?ws=$(citc_workspace)" +} + +# i3 +focus() { + # Focuses an i3 window by application name. + i3-msg "[class=\"$1\"] focus" >/dev/null +} + +# C +runc() { + # Compile and run $1. Pass $1 as file.c. + # This is modelled after the `runhaskell` command. + # Deletes the compiled binary after executing it. + # + # depends gcc + gcc "$1" -o "${1%.c}" && "./${1%.c}" && rm "${1%.c}" +} + +# Rust +runrust() { + # Compile and run $1. Pass $1 as file.rs. + # This is modelled after the `runhaskell` command. + # Deletes the compiled binary after executing it. + # + # depends rustc + rustc "$1" && "./${1%.rs}" && rm "${1%.rs}" +} + +# zsh +fns() { + # Outputs all available functions. + # `fns` was chosen instead of `functions`, since `functions` was already + # taken. + compgen -A function +} + +aliases() { + # Outputs all available aliases. + compgen -a +} + +keywords() { + # Outputs all of the shell's reserved keywords. + compgen -k +} + +builtins() { + # Outputs all of the shell's builtin commands. + compgen -b +} + + +################################################################################ +# Theming +################################################################################ + +colors() { + # Outputs the wpgtk-generated color palette annotated with numbers. + echo ' 0 1 2 3 4 5 6 7' && \ + wpg --preview && \ + echo ' 8 9 10 11 12 13 14 15' +} + +gvcci() { + # Integrates `gvcii` and `wpgtk`. + # Usage: gvcii path/to/wallpaper.jpg + local filename="$(basename $1)" + local directory="${filename%.*}" + local json=~/.gvcci/themes/$directory/json-scheme.json + + if [ -f $json ]; then + wpg --theme $json + else + (cd ~/Dropbox/programming/gvcci && \ + ./gvcci.sh "$1" && \ + wpg --theme $json) + fi + + # TODO: Why do I need this? + sleep 0.1 && feh --bg-scale $1 +} + + +################################################################################ +# Configuration file management +################################################################################ + +# Easily management the myriad of configuration files required to set my +# preferences. This is intended to be integrated with i3. +# TODO: Support editing config name. +# TODO: Support editing config filepath. +# TODO: Is there a way to get rofi to just display information. +# E.g. output of `ls_configs`. + +prompt_config() { + # Asks the user which file they'd like to edit. Returns the filepath to that + # configuration file. + local name=$(kv_keys configuration_files | rofi -dmenu) + kv_get configuration_files "$name" +} + +add_config() { + # Adds a configuration file to the configuration file database. + + # NOTE: Cannot use `local` here if I want to capture the exit code of the + # subshell. + name=$(rofi_prompt 'Config name') + local ec=$? + + if [ $ec -eq 0 ]; then + filepath=$(rofi_prompt 'Path to file') + ec=$? + + if [ $ec -eq 0 ]; then + kv_set configuration_files "$name" "$filepath" + else + echo 'Failed to get a path for the config. Exiting...' + return $ec + fi + else + echo 'Failed to get a name for the config. Exiting...' + return $ec + fi + +} + +edit_config() { + # Opens the selected configuration file in an editor. + # depends emacsclient_floating + emacsclient_floating "$(prompt_config)" +} + +rm_config() { + # Removes a configuration file from the configuration file database. + name=$(kv_keys configuration_files | rofi -dmenu) + local ec=$? + + if [ $ec -eq 0 ]; then + kv_delete configuration_files "$name" + else + echo 'Failed to get a name for the config. Exiting...' + return $ec + fi +} + +ls_configs() { + # Lists + kv_entries configuration_files +} |