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# This file is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; either version 3

# of the License, or (at your option) any later version.

# This file is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this file. If not, see <https://www.gnu.org/licenses/>.

# User wide interactive shell configuration and executing commands.

# This file is sourced by the second for login shells (after

# '~/.profile'). Or by the first for interactive non-login shells.

# shellcheck shell=bash

# If not running interactively, don't do anything

[[ $- != *i* ]] && return

_is_under_zed_remote() {

local pid=$PPID name

while [[ -n "$pid" && "$pid" -gt 1 ]]; do

name=$(</proc/"$pid"/comm) 2>/dev/null || return 1

case "$name" in

*zed-server*|*zed-remote*|*zed_server*) return 0 ;;

esac

pid=$(awk '/^PPid:/{print $2}' /proc/"$pid"/status 2>/dev/null)

done

return 1

}

_is_embed_terminal() {

# VSCode and derivatives

[[ "$TERM_PROGRAM" == "vscode" ]] && return 0

[[ -n "$VSCODE_SHELL_INTEGRATION" ]] && return 0

# Zed

[[ "$TERM_PROGRAM" == "zed" ]] && return 0

[[ -n "$ZED_TERM" ]] && return 0

_is_under_zed_remote && return 0

# Jetbrains

[[ "$TERMINAL_EMULATOR" == "JetBrains-JediTerm" ]] && return 0

# Claude Code

[[ -n "$CLAUDECODE" ]] && return 0

# GitHub Codespaces

[[ "$CODESPACES" == "true" ]] && return 0

# Emacs

[[ -n "$INSIDE_EMACS" ]] && return 0

[[ "$TERM" == "dumb" ]] && return 0

return 1

}

# Auto-attach to tmux for interactive SSH/WSL sessions.

# Skip for AI agents, IDE terminals, CI, and non-TTY pipes.

_should_tmux() {

! _is_embed_terminal || return 1

[[ -z "${TMUX}" ]] || return 1

command -v tmux &>/dev/null || return 1

[[ -t 0 ]] || return 1 # no TTY

[[ -z "${CI}" ]] || return 1

# Always on SSH

[[ -n "$SSH_CONNECTION" ]] && return 0

# On WSL, only auto-attach if running in Windows Terminal

[[ -n "$WSL_DISTRO_NAME" && -n "$WT_SESSION" ]] && return 0

return 1

}

if _should_tmux; then

exec tmux new-session -A -s main

unset -f _should_tmux

# Some app and virtual terminals unable in login shells

if [ -z "${BASH_PROFILE_SOURCED+x}" ]; then

if [ -f "$HOME/.profile" ]; then

# shellcheck disable=SC1091

. "$HOME/.profile"

# --------------------------------------------------------------------

# Setup asdf-golang environment (GOROOT, GOPATH, GOBIN)

# --------------------------------------------------------------------

_asdf_golang_env="${ASDF_DATA_DIR:-$HOME/.asdf}/plugins/golang/set-env.bash"

if [ -f "$_asdf_golang_env" ]; then

# shellcheck disable=SC1090

. "$_asdf_golang_env"

# Guard against broken dirname chains (e.g. GOROOT=/ -> GOPATH=//packages)

if [ -n "$GOROOT" ] && [ ! -x "$GOROOT/bin/go" ]; then

unset GOROOT GOPATH GOBIN

unset _asdf_golang_env

# --------------------------------------------------------------------

# Shell options

# --------------------------------------------------------------------

# Auto-fix minor typos in interactive use of 'cd'

shopt -q -s cdspell

# Bash can automatically prepend cd when entering just a path in

# the shell

shopt -q -s autocd

# Case-insensitive globbing (used in pathname expansion).

shopt -s nocaseglob

# Check the window size after each command and, if necessary,

# update the values of LINES and COLUMNS

shopt -q -s checkwinsize

# Don't let Ctrl-D exit the shell

set -o ignoreeof

# Immediate notification of background job termination

set -o notify

# --------------------------------------------------------------------

# History

# --------------------------------------------------------------------

# Append to the history file, don't overwrite it

shopt -s histappend

# Bash attempts to save all lines of a multiple-line command in the

# same history entry. This allows easy re-editing of multi-line

# commands.

shopt -q -s cmdhist

# See man -P 'less -rp HISTCONTROL' bash

HISTCONTROL="erasedups:ignoreboth"

# The number of commands in history stack in memory

HISTSIZE=5000

# Maximum number of history lines

HISTFILESIZE=10000

# For the protection and ability for future analyzing

HISTTIMEFORMAT="%h %d %H:%M:%S "

# Omit:

# & duplicates

# [ ] lines starting with spaces

# history * history command

# cd -*/cd +* navigation on directory stack

HISTIGNORE='&:[ ]*:history *:cd -*[0-9]*:cd +*[0-9]*'

# Save commands immediately after use to have shared history

# between Bash sessions.

# 'history -a' append the current history to the history file

# 'history -c' clear the history list

# 'history -r' read the history file and append its contents to

# the history list.

if [[ "$PROMPT_COMMAND" != *"history -a"* ]]; then

PROMPT_COMMAND="history -a; history -c; history -r; ${PROMPT_COMMAND}"

if [ -f ~/.config/dirstack.sh ]; then

# shellcheck disable=SC1090

. ~/.config/dirstack.sh

# --------------------------------------------------------------------

# Utils

# --------------------------------------------------------------------

if [ -f ~/.config/proctools.sh ]; then

# shellcheck disable=SC1090

. ~/.config/proctools.sh

# --------------------------------------------------------------------

# Setup Editor

# --------------------------------------------------------------------

# Editor to fallback to if the server is not running. If this

# variable is empty, then start GNU Emacs in daemon mode and try

# connecting again.

ALTERNATE_EDITOR=''

export ALTERNATE_EDITOR

EDITOR='emacsclient -c -nw'

export EDITOR

VISUAL="$EDITOR"

export VISUAL

# More for less

if [[ $TERM == "dumb" ]] ; then

PAGER="cat"

else

PAGER="less"

export PAGER

if [[ $TERM != "dumb" ]]; then

# -X will leave the text in your Terminal, so it doesn't disappear

# when you exit less.

# -F will exit less if the output fits on one screen (so you don't

# have to press "q").

# -R ANSI "color" escape sequences are output in "raw" form.

# See: https://unix.stackexchange.com/q/38634/50400

LESS="-X -F -R"

LESSCHARSET=UTF-8

LESSHISTFILE="${XDG_CACHE_HOME:-$HOME/.cache}/lesshst"

export LESS LESSCHARSET LESSHISTFILE

# Set the Less input preprocessor.

# Try to find either `lesspipe` or `lesspipe.sh` in the system path.

# Install using: `brew install lesspipe` on macOS

if [ -z "$LESSOPEN" ]; then

# Check for the existence of lesspipe or lesspipe.sh

if command -v lesspipe >/dev/null 2>&1; then

LESSOPEN="| /usr/bin/env lesspipe %s 2>&-"

elif command -v lesspipe.sh >/dev/null 2>&1; then

LESSOPEN="| /usr/bin/env lesspipe.sh %s 2>&-"

[ -n "$LESSOPEN" ] && export LESSOPEN

# --------------------------------------------------------------------

# Bash completion

# --------------------------------------------------------------------

if ! shopt -oq posix; then

if [ -f /usr/share/bash-completion/bash_completion ]; then

# shellcheck disable=SC1091

. /usr/share/bash-completion/bash_completion

elif [ -f /etc/bash_completion ]; then

# shellcheck disable=SC1091

. /etc/bash_completion

# --------------------------------------------------------------------

# Setup colors

# --------------------------------------------------------------------

# Default to no color.

color_prompt=no

# Check explicit color preferences.

if [ "${COLORTERM:-}" = "truecolor" ] \

|| [ "${COLORTERM:-}" = "24bit" ] \

|| [ "${COLORTERM:-}" = "1" ] \

|| [ "${COLORTERM:-}" = "gnome-terminal" ] \

|| [ "${USE_ANSI_COLORS:-}" = "true" ] \

|| [ "$TERM" = "xterm-256color" ] \

|| tput setaf 1 >/dev/null 2>&1; then

color_prompt=yes

else

# Detect support for colors based on terminal type.

case "$TERM" in

*-256color) color_prompt=yes;;

xterm | xterm-color) color_prompt=yes;;

esac

# Fallback to terminfo detection if no explicit preference is

# found.

if [ "$color_prompt" = "no" ]; then

if command -v tput >/dev/null 2>&1; then

if tput setaf 1 >/dev/null 2>&1; then

color_prompt=yes

if [ "$color_prompt" = "yes" ]; then

# colorize gcc output

GCC_COLORS='error=01;31:'

GCC_COLORS+='warning=01;35:'

GCC_COLORS+='note=01;36:'

GCC_COLORS+='caret=01;32:'

GCC_COLORS+='locus=01:'

GCC_COLORS+='quote=01'

export GCC_COLORS

: "${COLORTERM:=truecolor}"

: "${CLICOLOR:=1}"

export CLICOLOR COLORTERM

unset colors_support

# Enable color support of ls

_dircolors=dircolors

[ "$(uname)" = "Darwin" ] && _dircolors=gdircolors

if command -v "$_dircolors" >/dev/null 2>&1; then

if [ -f ~/.dircolors ]; then

eval "$("$_dircolors" -b ~/.dircolors)"

else

eval "$("$_dircolors" -b)"

unset _dircolors

# --------------------------------------------------------------------

# Setup aliases

# --------------------------------------------------------------------

if [ -f ~/.bash_aliases ]; then

# shellcheck disable=SC1090

. ~/.bash_aliases

# --------------------------------------------------------------------

# Setup GPG for interactive shells

# --------------------------------------------------------------------

# Update GPG_TTY. See 'man 1 gpg-agent'.

# Only set GPG_TTY in real terminals, not in VSCode/Cursor pseudo-terminals

if _is_embed_terminal; then

# Running in Cursor/VSCode - don't set GPG_TTY

unset GPG_TTY

else

# Real terminal - try to set GPG_TTY

_possible_tty="$(tty 2>/dev/null)"

if [ -n "$_possible_tty" ] && [ "$_possible_tty" != "not a tty" ]; then

GPG_TTY="$_possible_tty"

export GPG_TTY

else

unset GPG_TTY

unset _possible_tty

# --------------------------------------------------------------------

# Setup Bash prompt

# --------------------------------------------------------------------

__auto_venv() {

# Auto-activate .venv in current directory; deactivate when leaving.

# Only checks PWD - no directory walking, no subshells.

local candidate="$PWD/.venv"

if [ -f "$candidate/bin/activate" ]; then

# Already active for this directory - nothing to do

[ "$VIRTUAL_ENV" = "$candidate" ] && return

# Deactivate previous venv if any

[ "$(type -t deactivate)" = "function" ] && deactivate

# shellcheck disable=SC1091

VIRTUAL_ENV_DISABLE_PROMPT=1 source "$candidate/bin/activate"

elif [ -n "$VIRTUAL_ENV" ]; then

# Left a project directory - deactivate

[ "$(type -t deactivate)" = "function" ] && deactivate

return 0

}

__prompt_command() {

local exit_code="$?"

# Suppress stale exit codes on empty Enter.

# PS0 sets _cmd_ran=1 before each real command. It does not

# fire on empty Enter or Ctrl+C, so we can distinguish:

# _cmd_ran=1 -> real command, show its $?

# _cmd_ran=0 -> no command; show $? once, then clear

if [ "${_cmd_ran:-0}" -eq 1 ]; then

# Real command ran - show its exit code

_cmd_ran=0

_idle_code="$exit_code"

elif [ "$exit_code" -ne 0 ] && [ "$exit_code" != "${_idle_code-}" ]; then

# No command, but $? changed (e.g. Ctrl+C) - show once

_idle_code="$exit_code"

else

# Repeated empty Enter - suppress stale code

exit_code=0

_idle_code="${_idle_code-}"

__auto_venv

local rcol=''

local bldylw=''

local bldblu=''

local bldblk=''

local bldred=''

if [ "${COLORTERM:-}" = "truecolor" ] \

|| [ "${COLORTERM:-}" = "24bit" ] \

|| [ "${COLORTERM:-}" = "1" ] \

|| [ "${CLICOLOR:-}" = "1" ] \

|| [ "${USE_ANSI_COLORS:-}" = "true" ] \

|| [ "$TERM" = "xterm-256color" ] \

|| tput setaf 1 >/dev/null 2>&1; then

rcol='\[\e[0m\]'

bldylw='\[\e[1;33m\]'

bldblu='\[\e[1;34m\]'

bldblk='\[\e[1;30m\]'

bldred='\[\e[1;31m\]'

PS1=""

PS1+='\u@\h'

PS1+="${rcol}"

if [ "$exit_code" != 0 ]; then

PS1+=" [${bldred}${exit_code}${rcol}]"

PS1+=" ${bldblu}"

PS1+='\w'

local b

b="$(git symbolic-ref HEAD 2>/dev/null)"

if [ -n "$b" ]; then

PS1+="${rcol} ${bldylw}${b##refs/heads/}"

local git_indicators=""

# Unstaged changes (modified/deleted but not added)

if ! git diff --quiet 2>/dev/null; then

git_indicators+="*"

# Staged changes (added but not committed)

if ! git diff --cached --quiet 2>/dev/null; then

git_indicators+="+"

# Commits ahead of remote (committed but not pushed)

local ahead

ahead="$(git rev-list --count '@{upstream}..HEAD' 2>/dev/null)"

if [ -n "$ahead" ] && [ "$ahead" -gt 0 ]; then

git_indicators+="^${ahead}"

# Stashed changes

local stash_count

stash_count="$(git stash list 2>/dev/null | wc -l)"

if [ "$stash_count" -gt 0 ]; then

git_indicators+="{${stash_count}}"

if [ -n "$git_indicators" ]; then

PS1+=" ${rcol}${bldblk}${git_indicators}"

PS1+="${rcol}"

PS1+="\n${bldblk}\\A${rcol} \\$ "

}

if [[ "$PROMPT_COMMAND" != *"__prompt_command"* ]]; then

PROMPT_COMMAND="__prompt_command; ${PROMPT_COMMAND}"

# PS0 is expanded after a command is read but before it executes.

# It does not fire on empty Enter or Ctrl+C - exactly what we need

# to distinguish "no command" from "real command". The parameter

# expansion trick sets _cmd_ran=1 as a side effect without printing

# anything. Requires bash 4.4+.

if [[ "$PS0" != *'_cmd_ran'* ]]; then

# shellcheck disable=SC2016

PS0='${_cmd_ran:$((_cmd_ran=1,0)):0}'

PS2='> '

# Load local overrides (not tracked in git)

if [[ -f ~/.bashrc.local ]]; then

# shellcheck disable=SC1090

source ~/.bashrc.local

# Local Variables:

# mode: sh

# End:

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