tmux-resurrect/strategies/vim_session.sh

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#!/usr/bin/env bash
# "vim session strategy"
#
# Restores a vim session from 'Session.vim' file, if it exists.
# If 'Session.vim' does not exist, it falls back to invoking the original
# command (withouth the `-S` flag).
ORIGINAL_COMMAND="$1"
DIRECTORY="$2"
vim_session_file_exists() {
[ -e "${DIRECTORY}/Session.vim" ]
}
original_command_contains_session_flag() {
[[ "$ORIGINAL_COMMAND" =~ "-S" ]]
}
main() {
if vim_session_file_exists; then
echo "vim -S"
elif original_command_contains_session_flag; then
# Session file does not exist, yet the orignal vim command contains
# session flag `-S`. This will cause an error, so we're falling back to
# starting plain vim.
echo "vim"
else
echo "$ORIGINAL_COMMAND"
fi
}
main