better profile handling

config/shell/.bash_profile

@@ -1,19 +1,81 @@
-[ -d "$HOME/.local/bin" ] && export PATH="$HOME/.local/bin:$PATH"
-[ -d "$HOME/.local/scripts" ] && export PATH="$HOME/.local/scripts:$PATH"
-[ -d "$HOME/.cargo/bin" ] && export PATH="$HOME/.cargo/bin:$PATH"
+#!/bin/bash
+
+# From archlinux's /etc/profile
+append_path () {
+    case ":$PATH:" in
+        *:"$1":*)
+            ;;
+        *)
+            PATH="${PATH:+$PATH:}$1"
+    esac
+}
+prepend_path () {
+    case ":$PATH:" in
+        *:"$1":*)
+            ;;
+        *)
+            PATH="$1${PATH:+:$PATH}"
+    esac
+}
+
+# Better than nothing
+export XDG_CONFIG_HOME="$HOME/.config"
+export XDG_DATA_HOME="$HOME/.local/share"
+export XDG_STATE_HOME="$HOME/.local/state"
+export XDG_CACHE_HOME="$HOME/.cache"
+
+# Better than nothing
+if [[ -z "$LANG" ]]; then
+    export LANG="en_US.UTF-8"
+    export LC_ALL="en_US.UTF-8"
+fi
+
+# Paths
 [ -f "$HOME/.cargo/env" ] && source "$HOME/.cargo/env"
-[ -d "$HOME/go/bin" ] && export PATH="$HOME/go/bin:$PATH"
+[ -d "$HOME/go/bin" ] && prepend_path "$HOME/go/bin"
+[ -d "$HOME/.local/bin" ] && prepend_path "$HOME/.local/bin"
+[ -d "$HOME/.local/scripts" ] && prepend_path "$HOME/.local/scripts"
+export PATH
 
-[ -x "$HOME/.local/scripts/ssh-init" ] && eval "$(ssh-init)" >/dev/null 2>&1
-
-command -v nvim >/dev/null 2>&1 && {
-    export EDITOR=nvim
-    export VISUAL=nvim
-}
-
-command -v f >/dev/null 2>&1 || {
-    alias f="exec fish"
-}
+# SSH with cross-session ssh-agent
+if [ -x "$HOME/.local/scripts/ssh-init" ]; then
+    eval "$($HOME/.local/scripts/ssh-init 2>/dev/null)" >/dev/null 2>&1
+fi
 
+# .profile is not included in the repo
 [ -f "$HOME/.profile" ] && . "$HOME/.profile"
-[ -f "$HOME/.bashrc" ] && . "$HOME/.bashrc"
+
+# Triggered when SSH into the machine
+if [[ $- == *i* ]]; then
+    # Set EDITOR and VISUAL, mainly for sudoedit
+    for app in helix nvim vim vi nano; do
+        if command -v "$app" >/dev/null 2>&1; then
+            EDITOR="$app"
+            VISUAL="$app"
+            break
+        fi
+    done
+    export EDITOR VISUAL
+
+    # For gpg
+    GPG_TTY=$(tty)
+    export GPG_TTY
+
+    # Shortcut alias for launching fish
+    command -v f >/dev/null 2>&1 || {
+        alias f="exec fish"
+    }
+    # Better do this manually since the automatic approach is kinda buggy.
+    # Add this to .bashrc to enable it anyway:
+    #
+    # if [[ $(ps --no-header --pid=$PPID --format=comm) != "fish" && -z ${BASH_EXECUTION_STRING} && ${SHLVL} == 1 ]]; then
+    #     shopt -q login_shell && LOGIN_OPTION='--login' || LOGIN_OPTION=''
+    #     exec fish $LOGIN_OPTION
+    # fi
+
+    # .bashrc is not included in the repo
+    [ -f "$HOME/.bashrc" ] && . "$HOME/.bashrc"
+fi
+
+unset append_path
+unset prepend_path