1#!/bin/sh
2# $NetBSD: prepare-import.sh,v 1.8 2014/02/11 16:11:28 jmmv Exp $
3#
4# Use this script to recreate the 'dist' subdirectory from a newly released
5# distfile.  The script takes care of unpacking the distfile, removing any
6# files that are not relevant to NetBSD and checking if there are any new
7# files in the new release that need to be addressed.
8#
9
10set -e
11
12ProgName=${0##*/}
13
14CLEAN_PATTERNS=
15CLEAN_PATTERNS="${CLEAN_PATTERNS} *.m4"
16CLEAN_PATTERNS="${CLEAN_PATTERNS} INSTALL TODO"
17CLEAN_PATTERNS="${CLEAN_PATTERNS} Atffile */Atffile */*/Atffile"
18CLEAN_PATTERNS="${CLEAN_PATTERNS} Makefile* */Makefile* */*/Makefile*"
19CLEAN_PATTERNS="${CLEAN_PATTERNS} admin"
20CLEAN_PATTERNS="${CLEAN_PATTERNS} atf-*/atf-*.m4"
21CLEAN_PATTERNS="${CLEAN_PATTERNS} bconfig.h.in"
22CLEAN_PATTERNS="${CLEAN_PATTERNS} bootstrap"
23CLEAN_PATTERNS="${CLEAN_PATTERNS} configure*"
24CLEAN_PATTERNS="${CLEAN_PATTERNS} m4"
25CLEAN_PATTERNS="${CLEAN_PATTERNS} tools/generate-revision.sh"
26
27err() {
28	echo "${ProgName}:" "${@}" 1>&2
29	exit 1
30}
31
32log() {
33	echo "${ProgName}:" "${@}"
34}
35
36backup_dist() {
37	if [ -d dist.old ]; then
38		log "Removing dist; dist.old exists"
39		rm -rf dist
40	else
41		log "Backing up dist as dist.old"
42		mv dist dist.old
43	fi
44}
45
46extract_distfile() {
47	local distfile="${1}"; shift
48	local distname="${1}"; shift
49
50	log "Extracting ${distfile}"
51	tar -xzf "${distfile}"
52	[ -d "${distname}" ] || err "Distfile did not create ${distname}"
53	log "Renaming ${distname} to dist"
54	mv "${distname}" dist
55}
56
57get_distname() {
58	local distfile="${1}"; shift
59	basename "${distfile}" | sed -e 's,\.tar.*,,'
60}
61
62cleanup_dist() {
63	log "Removing unnecessary files from dist"
64	( cd dist && rm -rf ${CLEAN_PATTERNS} )
65}
66
67diff_dirs() {
68	local old_dir="${1}"; shift
69	local new_dir="${1}"; shift
70
71	local tmpdir="$(mktemp -d -t atf-import)"
72	trap "rm -rf '${tmpdir}'; exit 1" HUP INT QUIT TERM
73
74	local old_list="${tmpdir}/old-list.txt"
75	( cd "${old_dir}" && find . -type f | sort >>"${old_list}" )
76	local new_list="${tmpdir}/new-list.txt"
77	( cd "${new_dir}" && find . -type f | sort >>"${new_list}" )
78
79	local added="${tmpdir}/added.txt"
80	comm -13 "${old_list}" "${new_list}" >"${added}"
81	local removed="${tmpdir}/removed.txt"
82	comm -23 "${old_list}" "${new_list}" | grep -v '/CVS' >"${removed}"
83	if [ -s "${removed}" ]; then
84		log "Removed files found"
85		cat "${removed}"
86	fi
87	if [ -s "${added}" ]; then
88		log "New files found"
89		cat "${added}"
90		log "Check if any files have to be cleaned up and update" \
91		    "the prepare-import.sh script accordingly"
92	fi
93
94	rm -rf "${tmpdir}"
95}
96
97main() {
98	[ ${#} -eq 1 ] || err "Must provide a distfile name"
99	local distfile="${1}"; shift
100
101	[ -f Makefile -a -f prepare-import.sh ] || \
102	    err "Must be run from the src/external/bsd/atf subdirectory"
103
104	local distname="$(get_distname ${distfile})"
105
106	backup_dist
107	extract_distfile "${distfile}" "${distname}"
108	cleanup_dist
109	diff_dirs dist.old dist
110}
111
112main "${@}"
113