dotfiles/dotfiles/lib/shellenv/emacs.sh

145 lines
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# ATTENTION: Most of the functions in this file are part of a now
# deprecated system for starting emacs that made the $EDITOR
# environment variable work for git and other things
# This approach is no longer in use.
# alias emacs='_emacs -c -n '
# is_osx && alias emacs='cocoa_emacs'
# alias terminal_emacs='_emacs -t'
# is_ssh && emacs="terminal_emacs"
alias emacs='emacsclient -t -n'
alias e='emacsclient -n'
is_osx && alias emacs='reattach-to-user-namespace emacsclient -c -n'
function kill_all_emacs {
emacs_pids | xargs kill -9
}
function edb {
\emacs --debug-init
}
function cocoa_emacs {
reattach-to-user-namespace zsh -c '_emacs -c -n "$@"'
}
function _emacs_daemon {
local server_name="$(_emacs_server_file)"
if ! emacs_daemon_exists "$server_name"; then
echo "Starting emacs with server name '$server_name'"
command emacs "$@" --daemon="$server_name"
fi
}
function _emacs {
_emacs_daemon
emacsclient "$@" --server-file="$(_emacs_server_file)"
}
function _emacs_daemon_arguments {
_emacs_daemon "$@"
emacsclient -c -n --server-file="$(_emacs_server_file)"
}
function _emacs_server_file {
local server_name="global"
[ ! -z ${PER_DIRECTORY_EMACS+y} ] && server_name="$(_current_dot_directory)"
echo $server_name
}
function emacs_daemon_exists {
! test -z "$(ps aux | grep -v grep | grep -i "emacs.*--daemon=.*$1$")"
}
function _dot_directory {
echo $1 | sed "s:/:.:g"
}
function _current_dot_directory {
local directory="$(git rev-parse --show-toplevel 2> /dev/null || pwd)"
_dot_directory $directory
}
function existing_emacs {
# Return any existing emacs server file or the one that should
# be created if it doesn't exist.
local server_file="$(emacs_get_running_instances | head -n1)"
[ -z "$server_file" ] && server_file="$(_emacs_server_file)"
echo $server_file
}
function emacs_make_frame_if_none_exists {
execute_elisp '(make-frame-if-none-exists-and-focus)' > /dev/null
focus_emacs
}
function emacs_ensure_running_with_frame {
test -z "$(emacs_get_running_instances)" && emacs || \
emacs_make_frame_if_none_exists "$(emacs_get_running_instances | head -n1)"
}
function execute_elisp {
_emacs -e "$1"
}
function focus_emacs {
is_osx && osascript -e 'tell application "Emacs" to activate'
}
function emacs_pids {
local flags=''
is_osx && flags='-i'
pgrep "$flags" emacs
}
function emacs_get_running_instances {
emacs_pids | xargs ps -o command -p | egrep -o " --daemon=(.*)" | awk -F= '{print $2}' | sed 's/\^J3,4\^J//'
}
function emacs_open {
if ! emacs_daemon_exists; then
emacs
fi
emacs_make_frame_if_none_exists
[ ! -z "$*" ] && _emacs "$@"
focus_emacs
}
function time_emacs {
time \emacs --daemon="timing" && emacsclient -e "(kill-emacs)" --server-file="timing"
}
function emacs_editor {
local client_path="$(which emacsclient)"
if is_osx; then
reattach-to-user-namespace "$client_path" "$@"
else
"$client_path" "$@"
fi
}
function emacs_pager {
TMP="$(mktemp -t emacs_pager.XXXXX --suffix=.ansi_color)"
echo $TMP
cat > "$TMP"
# -n may seem strange here, but it actually makes sense. There is
# -no need to wait since the buffer is inside of emacs now
emacs_editor "$TMP" -n "$@"
rm "$TMP"
}
# Make emacs the default editor.
export EDITOR="$HOME/.lib/bin/editor.sh"
export ALTERNATE_EDITOR=""
export VISUAL="$EDITOR"
export GIT_EDITOR="$EDITOR"
# This actually gets executed in dotfiles/lib/shellrc.sh to make sure that it takes precedence over other settings
function inside_emacs_hook {
export PAGER="$HOME/.lib/bin/pager.sh"
export GITPAGER="$PAGER"
export MANPAGER="$PAGER"
}