+
+# Helper functions.
+terminal_info() {
+ infocmp "$@" 2>&1
+}
+terminal_available() {
+ terminal_info "$@" > /dev/null
+}
+# Usage: <file> <name> <grep-string> <value>
+apply_optional_replacement() {
+ if test -n "$4"; then
+ echo "$1: using $2 $4"
+ generate "$1" '' simple_cpp \
+ "$3" -- "$4"
+ else
+ echo "$1: removing $2 display"
+ grep_i -v "$3" "$1"
+ fi
+}
+# Check if `infocmp` is available.
+if ! infocmp >/dev/null 2>&1; then
+ echo 'Warning: `infocmp` not available! 256color checks will fail.'
+ echo
+fi
+
+
+# DIRECTORY SETUP
+
+# Create private temporary directory used by many tools (including GNU screen
+# and tmux).
+mkdir -p ~/.tmp
+chmod 0700 ~/.tmp
+
+# Create rlwrap history directory.
+mkdir -p shell/rlwrap
+# Create zsh cache directory.
+mkdir -p zsh/cache
+
+
+# FILE SETUP
+
+# Generate ~/.less with lesskey. Prevent cluttering ~/ by storing the history
+# file in this directory; this requires replacing the constant HISTORY_PATH in
+# lesskey.
+echo 'lesskey: generating .lesskey'
+simple_cpp <lesskey \
+ HISTORY_PATH -- "`pwd`/lesshistory" \
+ | lesskey -
+chmod 0600 ~/.less
+
+# Custom colors for GNU ls.
+if installed dircolors; then
+ echo '# WARNING! DO NOT EDIT THIS FILE!' >shell/dircolors
+ dircolors -b shell/dircolors.in >>shell/dircolors
+fi
+
+# Find the required options to get colored ls output. GNU ls is preferred. See
+# shell/aliases.in for details. Doing this here instead of in shell/aliases
+# speeds up shell starts.
+#
+# Check if colors are available.
+if ls --color >/dev/null 2>&1; then
+ ls_color=gnu
+else
+ if ls -G >/dev/null 2>&1; then
+ ls_color=cli
+ else
+ ls_color=
+ fi
+fi
+# Absolute path to `ls`.
+ls_path=`installed_path ls`
+# GNU ls with colors.
+if test "x$ls_color" = xgnu; then
+ ls_env=
+ ls_color='--color'
+# Normal (BSD) ls with colors.
+elif test "x$ls_color" = xcli; then
+ ls_env='CLICOLOR_FORCE=1'
+ ls_color='-G'
+# Simple ls with no colors.
+else
+ ls_env=
+ ls_color=
+fi
+
+# Also check if `column -t` is available.
+if echo test | column -t >/dev/null 2>&1; then
+ column=' | column -t'
+else
+ column=
+fi
+
+generate shell/aliases .in simple_cpp \
+ LS_ENV LS_PATH LS_COLOR COLUMN -- \
+ "$ls_env" "$ls_path" "$ls_color" "$column"
+
+# If `tig` is not available use my simple replacement.
+if ! installed tig; then
+ echo "alias tig='git tig'" >>shell/aliases
+fi
+
+# Check if grep supports --color=auto.
+if echo test | grep --color=auto test >/dev/null 2>&1; then
+ :
+else
+ echo 'shell/aliases: removing grep --color=auto'
+ sed_i '/^alias grep=/ s/^/#/' shell/aliases
+fi
+
+generate screenrc .in cat
+# As screen-256color is not widely supported use it only on machines where the
+# matching terminfo entry is available. This also requires a terminal emulator
+# which supports 256 colors. Also used for tmux.
+use_256colors=
+if terminal_available screen-256color; then
+ # Called through SSH connection, assume the local system supports 256
+ # colors.
+ if test -n "$SSH_CONNECTION"; then
+ use_256colors=1
+ # We have rxvt-unicode installed, check if it supports 256 colors.
+ elif installed urxvt; then
+ # Thanks to deryni in #rxvt-unicode on Freenode (2012-10-14 22:54
+ # CEST) for the strings/grep idea. The grep check is for "correct" 256
+ # rxvt-unicode binaries (e.g. Debian's rxvt-unicode-256color), the
+ # terminal_info check for manual installations which modify
+ # rxvt-unicode's terminfo entry.
+ urxvt_path=`installed_path urxvt`
+ urxvt_grep=`strings "$urxvt_path" | grep '^TERM=rxvt-'`
+ if test x"$urxvt_grep" = 'xTERM=rxvt-unicode-256color' \
+ || terminal_info rxvt-unicode \
+ | grep -F 'colors#256' >/dev/null; then
+ use_256colors=1
+ fi
+ # Check if XTerm supports 256 colors (not a perfect check, but most XTerm
+ # support 256 colors).
+ elif terminal_available xterm-256color; then
+ use_256colors=1
+ fi
+fi
+if test -z "$use_256colors"; then
+ echo 'screenrc: removing 256 colors'
+ sed_i 's/Enable 256 color/Disable 256 color/;
+ s/screen-256color/screen/' screenrc
+fi
+# Some options are only necessary when running as root. They are marked as
+# "(ROOT)".
+if test "`id -u`" -ne 0; then
+ echo 'screenrc: removing root options'
+ grep_i -v '(ROOT)' screenrc
+fi
+# I use some features of GNU screen which are only in Git or very recent GNU
+# screen versions. Drop them on machines which have older versions. They are
+# marked as "(GIT)".
+if test ! -d "$HOME/development/shell/screen"; then
+ echo 'screenrc: removing Git features'
+ grep_i -v '(GIT)' screenrc
+fi
+# Rxvt doesn't need the attrcolor "fix". As I prefer rxvt assume I use it when
+# it's installed.
+if installed rxvt; then
+ echo 'screenrc: removing attrcolor "fix"'
+ sed_i 's/attrcolor b ".I"/#attrcolor b ".I"/' screenrc
+fi
+# Display current battery charge on computers with a battery. Necessary lines
+# are marked as "(BATTERY)". Also used for Tmux.
+battery=
+for x in /sys/class/power_supply/BAT*; do
+ test -d "$x" || continue
+ battery="$x"
+done
+apply_optional_replacement screenrc \
+ battery BATTERY "$battery"
+# Display current temperature. Necessary lines are marked as "(TEMPERATURE)".
+# Also used for Tmux.
+temperature=/sys/devices/platform/coretemp.0
+if ! test -d "$temperature"; then
+ temperature=
+fi
+apply_optional_replacement screenrc \
+ temperature TEMPERATURE "$temperature"
+
+
+if installed tmux; then
+ generate tmux.conf .in cat
+
+ apply_optional_replacement tmux.conf \
+ battery BATTERY "$battery"
+ apply_optional_replacement tmux.conf \
+ temperature TEMPERATURE "$temperature"
+
+ # Old Tmux versions can't handle that.
+ generate tmux.conf '' ./bin/remove-continuation.pl
+
+ # Add mappings to switch to windows 10-29 quickly. See tmux-window.pl for
+ # details.
+ perl ./tmux-window.pl 1 "`pwd`/tmux-window2.conf" >tmux-window1.conf
+ perl ./tmux-window.pl 2 >tmux-window2.conf
+ # Set absolute path to tmux-window1.conf in tmux.conf.
+ generate tmux.conf '' simple_cpp \
+ TMUX_WINDOW_PATH -- "`pwd`/tmux-window1.conf"
+
+ # 256 colors not available.
+ if test -z "$use_256colors"; then
+ echo 'tmux.conf: removing 256 colors'
+ sed_i 's/Enable 256 color/Disable 256 color/;
+ s/screen-256color/screen/' tmux.conf
+ fi
+ # Tmux doesn't display a warning if the shell wasn't found!
+ if test ! -x '/bin/zsh'; then
+ echo 'tmux.conf: removing /bin/zsh as shell'
+ sed_i 's/zsh/sh/' tmux.conf
+ fi
+fi
+
+# Htop overwrites the comments in its configuration file.
+generate htoprc .in cat
+
+
+# LINK SETUP