Alexander Hess
dcdb32585a
- use `pyenv` to manage the various develop environments
+ install several Python binaries
+ each environment receives its own `poetry` install
- add two virtual environments:
+ "interactive" => default environment with no library,
which receives accidental `pip install`s
+ "utils" => hosts various globally available tools/apps
(e.g., `mackup`)
- add installation and update scripts
262 lines
9.1 KiB
Bash
262 lines
9.1 KiB
Bash
# Executed by bash when a non-login shell starts
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# Ensure bash is running interactively
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[[ $- != *i* ]] && return
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# Check if a command can be found on the $PATH
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command_exists() {
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command -v "$1" 1>/dev/null 2>&1
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}
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# ==================
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# Base Configuration
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# ==================
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# Disable Ctrl-S and Ctrl-Q
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stty -ixon
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# Report status of background jobs immediately
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set -o notify
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# Show # of running jobs when exiting a shell
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shopt -s checkjobs
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# Just type the directory to cd into it
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shopt -s autocd
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# Correct minor spelling mistakes with cd
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shopt -s cdspell
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# Include hidden files in * glob expansion
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shopt -s dotglob
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shopt -s extglob
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# Expand ** into (recursive) directories
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shopt -s globstar
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# Ignore case when * expanding
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shopt -s nocaseglob
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# Update $ROWS and $COLUMNS after each command
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shopt -s checkwinsize
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# =======
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# History
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# =======
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# Remember multi-line commands in history as one command
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shopt -s cmdhist
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# Do not overwrite .bash_history file
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shopt -s histappend
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# Allow re-editing a failed history substitution
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shopt -s histreedit
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# Store multi-line commands in history without semicolons
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shopt -s lithist
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# Cannot be set in `~/.profile` due to conflict with `zsh` (same env variable)
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export HISTFILE="$HOME/.bash_history"
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# Ignore commands prefixed with a space, and ones used identically just before
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# (this mimics zsh's default behavior)
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export HISTCONTROL=ignoreboth
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# =========================
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# Shell Utilities & Aliases
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# =========================
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source "$HOME/.config/shell/utils.sh"
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source "$HOME/.config/shell/aliases.sh"
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# Add tab completion for all aliases to commands with completion functions
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# Source: https://superuser.com/a/437508
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_alias_completion() {
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local namespace="alias_completion"
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# parse function based completion definitions, where capture group 2 => function and 3 => trigger
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local compl_regex='complete( +[^ ]+)* -F ([^ ]+) ("[^"]+"|[^ ]+)'
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# parse alias definitions, where capture group 1 => trigger, 2 => command, 3 => command arguments
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local alias_regex="alias ([^=]+)='(\"[^\"]+\"|[^ ]+)(( +[^ ]+)*)'"
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# create array of function completion triggers, keeping multi-word triggers together
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eval "local completions=($(complete -p | sed -Ene "/$compl_regex/s//'\3'/p"))"
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(( ${#completions[@]} == 0 )) && return 0
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# create temporary file for wrapper functions and completions
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rm -f "/tmp/${namespace}-*.tmp" # preliminary cleanup
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local tmp_file; tmp_file="$(mktemp "/tmp/${namespace}-${RANDOM}XXX.tmp")" || return 1
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local completion_loader; completion_loader="$(complete -p -D 2>/dev/null | sed -Ene 's/.* -F ([^ ]*).*/\1/p')"
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# read in "<alias> '<aliased command>' '<command args>'" lines from defined aliases
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local line; while read line; do
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eval "local alias_tokens; alias_tokens=($line)" 2>/dev/null || continue # some alias arg patterns cause an eval parse error
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local alias_name="${alias_tokens[0]}" alias_cmd="${alias_tokens[1]}" alias_args="${alias_tokens[2]# }"
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# skip aliases to pipes, boolean control structures and other command lists
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# (leveraging that eval errs out if $alias_args contains unquoted shell metacharacters)
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eval "local alias_arg_words; alias_arg_words=($alias_args)" 2>/dev/null || continue
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# avoid expanding wildcards
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read -a alias_arg_words <<< "$alias_args"
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# skip alias if there is no completion function triggered by the aliased command
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if [[ ! " ${completions[*]} " =~ " $alias_cmd " ]]; then
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if [[ -n "$completion_loader" ]]; then
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# force loading of completions for the aliased command
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eval "$completion_loader $alias_cmd"
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# 124 means completion loader was successful
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[[ $? -eq 124 ]] || continue
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completions+=($alias_cmd)
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else
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continue
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fi
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fi
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local new_completion="$(complete -p "$alias_cmd")"
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# create a wrapper inserting the alias arguments if any
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if [[ -n $alias_args ]]; then
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local compl_func="${new_completion/#* -F /}"; compl_func="${compl_func%% *}"
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# avoid recursive call loops by ignoring our own functions
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if [[ "${compl_func#_$namespace::}" == $compl_func ]]; then
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local compl_wrapper="_${namespace}::${alias_name}"
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echo "function $compl_wrapper {
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(( COMP_CWORD += ${#alias_arg_words[@]} ))
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COMP_WORDS=($alias_cmd $alias_args \${COMP_WORDS[@]:1})
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(( COMP_POINT -= \${#COMP_LINE} ))
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COMP_LINE=\${COMP_LINE/$alias_name/$alias_cmd $alias_args}
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(( COMP_POINT += \${#COMP_LINE} ))
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$compl_func
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}" >> "$tmp_file"
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new_completion="${new_completion/ -F $compl_func / -F $compl_wrapper }"
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fi
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fi
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# replace completion trigger by alias
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new_completion="${new_completion% *} $alias_name"
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echo "$new_completion" >> "$tmp_file"
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done < <(alias -p | sed -Ene "s/$alias_regex/\1 '\2' '\3'/p")
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source "$tmp_file" && \rm -f "$tmp_file"
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}; _alias_completion
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# Must come after `_alias_completion`
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alias dotfiles='/usr/bin/git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME'
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# ================
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# Bash Completions
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# ================
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# Enable programmable completion features
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if ! shopt -oq posix; then
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if [ -f /usr/share/bash-completion/bash_completion ]; then
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source /usr/share/bash-completion/bash_completion
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elif [ -f /etc/bash_completion ]; then
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source /etc/bash_completion
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fi
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fi
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# Enable completions for various tools
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command_exists invoke && eval "$(invoke --print-completion-script=bash)"
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command_exists nox && eval "$(register-python-argcomplete nox)"
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command_exists pip && eval "$(pip completion --bash)"
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command_exists pipx && eval "$(register-python-argcomplete pipx)"
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command_exists poetry && eval "$(poetry completions bash)"
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# ============
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# Key Bindings
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# ============
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# Allow easier clearing of the screen (like in zsh)
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bind -x '"\C-l": clear;'
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# ======
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# Prompt
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# ======
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# Set a variable identifying the chroot you work in
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if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
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_debian_chroot=$(cat /etc/debian_chroot)
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fi
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# Mimic PowerLevel10k's git prompt (only rough approximation)
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_prompt_git() {
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local out ref uncommited unstaged untracked ahead behind
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# Check if the pwd contains a git repository and exit early if it does not
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ref=$(git rev-parse --abbrev-ref --symbolic-full-name HEAD 2> /dev/null)
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[ "$ref" == "" ] && return
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# Check if the current HEAD is detached or reachable by a ref
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echo -en "\033[0;37m "
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if [ "$ref" == "HEAD" ]; then
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ref=$(git rev-parse --short HEAD)
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echo -en "@"
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fi
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echo -en "\033[0;32m$ref\033[0m"
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# Indicate if local is ahead and/or behind upstream
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ahead=0
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behind=0
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git status 2>/dev/null | (
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while read -r line ; do
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case "$line" in
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*'diverged'*) # For simplicity, a diverged local branch is
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ahead=1 ; behind=1 ; break ; ;; # indicated as being
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*'ahead'*) # both ahead and behind its upstream
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ahead=1 ; ;;
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*'behind'*)
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behind=1 ; ;;
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esac
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done
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if [ $ahead -gt 0 ] && [ $behind -gt 0 ]; then
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echo -en "\033[0;32m <>\033[0m"
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elif [ $ahead -gt 0 ]; then
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echo -en "\033[0;32m >\033[0m"
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elif [ $behind -gt 0 ]; then
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echo -en "\033[0;32m <\033[0m"
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fi
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)
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# Indicate stashed files with a *
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[ "$(git stash list 2> /dev/null)" != "" ] && echo -en "\033[0;32m *\033[0m"
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# Indicate uncommited/staged with a +
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git diff-index --cached --exit-code --quiet HEAD -- 2> /dev/null
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[ $? -gt 0 ] && echo -en "\033[0;33m +\033[0m"
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# Indicate unstaged with a !
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git diff-files --exit-code --quiet 2> /dev/null
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[ $? -gt 0 ] && echo -en "\033[0;33m !\033[0m"
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# Indicate untracked files with a ?
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if [ "$(git ls-files --exclude-standard --others 2> /dev/null)" != "" ]; then
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echo -en "\033[0;34m ?\033[0m"
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fi
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}
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# Mimic zsh's "%" symbol indicating background jobs
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_prompt_jobs() {
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local running
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(( $(jobs -rp | wc -l) )) && echo -e "\033[0;32m %\033[0m"
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}
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# Mimic zsh's pyenv/venv integration
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_prompt_pyenv() {
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if [ -n "$VIRTUAL_ENV" ]; then
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echo -e "\033[0;36m py $(python -c "import os, sys; (hasattr(sys, 'real_prefix') or (hasattr(sys, 'base_prefix') and sys.base_prefix != sys.prefix)) and print(os.path.basename(sys.prefix))")\033[0m"
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elif [ -n "$PYENV_VERSION" ]; then
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if [ "$PYENV_VERSION" != "system" ]; then
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echo -e "\033[0;36m py $PYENV_VERSION\033[0m"
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fi
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elif [ -f "$(pwd)/.python-version" ]; then
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echo -e "\033[0;36m py $(cat .python-version | sed ':a;N;$!ba;s/\n/:/g')\033[0m"
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fi
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}
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# Disable the default prompts set by pyenv and venv
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export PYENV_VIRTUALENV_DISABLE_PROMPT=1
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export VIRTUAL_ENV_DISABLE_PROMPT=1
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PS1='${chroot:+($_debian_chroot)}\w$(_prompt_git)$(_prompt_jobs)$(_prompt_pyenv) > '
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PS2='... '
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