5 files changed, 141 insertions, 0 deletions
diff --git a/plugins/tpm/scripts/helpers/plugin_functions.sh b/plugins/tpm/scripts/helpers/plugin_functions.sh
new file mode 100644
index 0000000..d2778d5
--- /dev/null
+++ b/plugins/tpm/scripts/helpers/plugin_functions.sh
@@ -0,0 +1,86 @@
+# using @tpm_plugins is now deprecated in favor of using @plugin syntax
+tpm_plugins_variable_name="@tpm_plugins"
+
+# manually expanding tilde char or `$HOME` variable.
+_manual_expansion() {
+	local path="$1"
+	local expanded_tilde="${path/#\~/$HOME}"
+	echo "${expanded_tilde/#\$HOME/$HOME}"
+}
+
+_tpm_path() {
+	local string_path="$(tmux start-server\; show-environment -g TMUX_PLUGIN_MANAGER_PATH | cut -f2 -d=)/"
+	_manual_expansion "$string_path"
+}
+
+_CACHED_TPM_PATH="$(_tpm_path)"
+
+_tmux_conf_contents() {
+	cat /etc/tmux.conf ~/.tmux.conf 2>/dev/null
+	if [ "$1" == "full" ]; then # also output content from sourced files
+		local file
+		for file in $(_sourced_files); do
+			cat $(_manual_expansion "$file") 2>/dev/null
+		done
+	fi
+}
+
+# return files sourced from tmux config files
+_sourced_files() {
+	_tmux_conf_contents |
+		awk '/^[ \t]*source(-file)? +/ { gsub(/'\''/,""); gsub(/'\"'/,""); print $2 }'
+}
+
+# Want to be able to abort in certain cases
+trap "exit 1" TERM
+export TOP_PID=$$
+
+_fatal_error_abort() {
+	echo >&2 "Aborting."
+	kill -s TERM $TOP_PID
+}
+
+# PUBLIC FUNCTIONS BELOW
+
+tpm_path() {
+	if [ "$_CACHED_TPM_PATH" == "/" ]; then
+		echo >&2 "FATAL: Tmux Plugin Manager not configured in tmux.conf"
+		_fatal_error_abort
+	fi
+	echo "$_CACHED_TPM_PATH"
+}
+
+tpm_plugins_list_helper() {
+	# lists plugins from @tpm_plugins option
+	echo "$(tmux start-server\; show-option -gqv "$tpm_plugins_variable_name")"
+
+	# read set -g @plugin "tmux-plugins/tmux-example-plugin" entries
+	_tmux_conf_contents "full" |
+		awk '/^[ \t]*set(-option)? +-g +@plugin/ { gsub(/'\''/,""); gsub(/'\"'/,""); print $4 }'
+}
+
+# Allowed plugin name formats:
+# 1. "git://github.com/user/plugin_name.git"
+# 2. "user/plugin_name"
+plugin_name_helper() {
+	local plugin="$1"
+	# get only the part after the last slash, e.g. "plugin_name.git"
+	local plugin_basename="$(basename "$plugin")"
+	# remove ".git" extension (if it exists) to get only "plugin_name"
+	local plugin_name="${plugin_basename%.git}"
+	echo "$plugin_name"
+}
+
+plugin_path_helper() {
+	local plugin="$1"
+	local plugin_name="$(plugin_name_helper "$plugin")"
+	echo "$(tpm_path)${plugin_name}/"
+}
+
+plugin_already_installed() {
+	local plugin="$1"
+	local plugin_path="$(plugin_path_helper "$plugin")"
+	[ -d "$plugin_path" ] &&
+		cd "$plugin_path" &&
+		git remote >/dev/null 2>&1
+}
diff --git a/plugins/tpm/scripts/helpers/shell_echo_functions.sh b/plugins/tpm/scripts/helpers/shell_echo_functions.sh
new file mode 100644
index 0000000..ecaa37e
--- /dev/null
+++ b/plugins/tpm/scripts/helpers/shell_echo_functions.sh
@@ -0,0 +1,7 @@
+echo_ok() {
+	echo "$*"
+}
+
+echo_err() {
+	fail_helper "$*"
+}
diff --git a/plugins/tpm/scripts/helpers/tmux_echo_functions.sh b/plugins/tpm/scripts/helpers/tmux_echo_functions.sh
new file mode 100644
index 0000000..7a6ef0a
--- /dev/null
+++ b/plugins/tpm/scripts/helpers/tmux_echo_functions.sh
@@ -0,0 +1,28 @@
+_has_emacs_mode_keys() {
+	$(tmux show -gw mode-keys | grep -q emacs)
+}
+
+tmux_echo() {
+	local message="$1"
+	tmux run-shell "echo '$message'"
+}
+
+echo_ok() {
+	tmux_echo "$*"
+}
+
+echo_err() {
+	tmux_echo "$*"
+}
+
+end_message() {
+	if _has_emacs_mode_keys; then
+		local continue_key="ESCAPE"
+	else
+		local continue_key="ENTER"
+	fi
+	tmux_echo ""
+	tmux_echo "TMUX environment reloaded."
+	tmux_echo ""
+	tmux_echo "Done, press $continue_key to continue."
+}
diff --git a/plugins/tpm/scripts/helpers/tmux_utils.sh b/plugins/tpm/scripts/helpers/tmux_utils.sh
new file mode 100644
index 0000000..e39946a
--- /dev/null
+++ b/plugins/tpm/scripts/helpers/tmux_utils.sh
@@ -0,0 +1,3 @@
+reload_tmux_environment() {
+	tmux source-file ~/.tmux.conf >/dev/null 2>&1
+}
diff --git a/plugins/tpm/scripts/helpers/utility.sh b/plugins/tpm/scripts/helpers/utility.sh
new file mode 100644
index 0000000..de6eb35
--- /dev/null
+++ b/plugins/tpm/scripts/helpers/utility.sh
@@ -0,0 +1,17 @@
+ensure_tpm_path_exists() {
+	mkdir -p "$(tpm_path)"
+}
+
+fail_helper() {
+	local message="$1"
+	echo "$message" >&2
+	FAIL="true"
+}
+
+exit_value_helper() {
+	if [ "$FAIL" == "true" ]; then
+		exit 1
+	else
+		exit 0
+	fi
+}