From c3d3f0c1ac1ef45916b3ff7d32b39f9531f94e51 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Fri, 12 Jul 2013 11:00:02 -0400
Subject: Write pro-archman and command handling.

---
(limited to 'lib')

diff --git a/lib/cmd.sh b/lib/cmd.sh
new file mode 100644
index 0000000..cff225b
--- /dev/null
+++ b/lib/cmd.sh
@@ -0,0 +1,95 @@
+# pro-archman
+# lib/cmd.sh
+# Command-related functions
+#
+# Copyright (C) 2013  Patrick "P. J." McDermott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+[ "x${_CMD_SM+set}" = 'xset' ] && return 0
+_CMD_SM=1
+
+cmds=
+
+load_cmds()
+{
+	local cmd
+
+	for cmd in ${PKGLIBCMD}; do
+		cmd="${cmd##*/}"
+		cmd="${cmd%.sm}"
+		cmds="${cmds}${cmd}${LF}"
+		use "cmd/${cmd}"
+	done
+}
+
+cmd_summary()
+{
+	if [ "x${loading_cmd}" = 'x' ]; then
+		return 125
+	fi
+
+	eval "cmd_${loading_cmd}_summary='${1}'"
+}
+
+cmd_usage()
+{
+	if [ "x${loading_cmd}" = 'x' ]; then
+		return 125
+	fi
+
+	eval "cmd_${loading_cmd}_usage='${1}'"
+}
+
+print_cmd_summaries()
+{
+	local padding cmd summary
+
+	padding="$(printf '%24s' '')"
+	for cmd in ${PKGLIBCMD}; do
+		cmd="${cmd##*/}"
+		cmd="${cmd%.sm}"
+		if [ ${#cmd} -gt 20 ]; then
+			printf '  %s\n%24s' "${cmd}" ''
+		else
+			printf '  %-20s  ' "${cmd}"
+		fi
+		summary="$(eval printf \'%s\' \"\$\{cmd_"${cmd}"_summary\}\")"
+		printf '%s\n' "${summary}" | fold -s -w 56 | \
+			sed "2,\$s/^/${padding}/;"
+	done
+}
+
+is_cmd()
+{
+	local cmd
+
+	cmd="${1}"
+
+	[ "x$(printf '%s' "${cmds}" | grep "^${cmd}$")" = "x${cmd}" ]
+}
+
+run_cmd()
+{
+	local cmd
+
+	cmd="${1}"
+	shift
+
+	if is_cmd "${cmd}"; then
+		"cmd_${cmd}_main" "${@}"
+	else
+		printf 'Command "%s" not found\n' "${cmd}"
+	fi
+}
diff --git a/lib/cmd/help.sh b/lib/cmd/help.sh
new file mode 100644
index 0000000..129cb14
--- /dev/null
+++ b/lib/cmd/help.sh
@@ -0,0 +1,33 @@
+# pro-archman
+# lib/cmd/help.sh
+# "help" command
+#
+# Copyright (C) 2013  Patrick "P. J." McDermott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+cmd_summary 'print this help message'
+cmd_usage '[<command>]'
+
+cmd_help_main()
+{
+	if [ ${#} -eq 1 ]; then
+		if is_cmd "${1}"; then
+			return 0
+		fi
+	fi
+
+	printf 'Usage: %s <command>\n\nWhere <command> is one of:\n' "${0}"
+	print_cmd_summaries
+}
diff --git a/lib/cmd/include.sh b/lib/cmd/include.sh
new file mode 100644
index 0000000..eeb6ef5
--- /dev/null
+++ b/lib/cmd/include.sh
@@ -0,0 +1,26 @@
+# pro-archman
+# lib/cmd/include.sh
+# "include" command
+#
+# Copyright (C) 2013  Patrick "P. J." McDermott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+cmd_summary 'include packages described in changes files'
+cmd_usage '<changes> ...'
+
+cmd_include_main()
+{
+	printf 'Not implemented\n'
+}
diff --git a/lib/cmd/local.mk b/lib/cmd/local.mk
new file mode 100644
index 0000000..6892594
--- /dev/null
+++ b/lib/cmd/local.mk
@@ -0,0 +1,6 @@
+# pro-archman
+# lib/cmd/local.mk
+
+pkglibcmd_srcs = \
+	lib/cmd/help.sh \
+	lib/cmd/include.sh
diff --git a/lib/local.mk b/lib/local.mk
new file mode 100644
index 0000000..e135474
--- /dev/null
+++ b/lib/local.mk
@@ -0,0 +1,5 @@
+# pro-archman
+# lib/local.mk
+
+pkglib_srcs = \
+	lib/cmd.sh
--
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