[moira.git] / util / makedepend / mdepend.sh

#!/bin/sh
#
#	@(#)mdepend.sh	1.3	5/11/88 19:44:36
#
#	Do the equivalent of the 'makedepend' program, but do it right.
#
#	Usage:
#
#	makedepend [cpp-flags] [-w width] [-s magic-string] [-f makefile]
#	  [-o object-suffix]
#
#	Notes:
#
#	The C compiler used can be overridden with the environment
#	variable "CC".
#
#	The "-v" switch of the "makedepend" program is not supported.
#
#
#	This script should
#	work on both USG and BSD systems.  However, when System V.4 comes out,
#	USG users will probably have to change "silent" to "-s" instead of
#	"-" (at least, that's what the documentation implies).
#
CC=${CC:-cc}

silent='-'

TMP=${TMPDIR:-/tmp}/mdep$$
CPPCMD=${TMP}a
DEPENDLINES=${TMP}b
TMPMAKEFILE=${TMP}c
MAGICLINE=${TMP}d

trap "rm -f ${TMP}*; exit 1" 1 2 15
trap "rm -f ${TMP}*; exit 0" 1 2 13

echo " \c" > $CPPCMD
if [ `wc -c < $CPPCMD` -eq 1 ]
then
    c="\c"
    n=
else
    c=
    n="-n"
fi

echo $n "exec $CC -E$c" > $CPPCMD
chmod +x $CPPCMD

files=
makefile=
magic_string='# DO NOT DELETE'
objsuffix='.o'
width=78
while [ $# != 0 ]
do
    case "$1" in
	-D*|-I*)
	    echo $n " '$1'$c" >> $CPPCMD
	    ;;
	-w)
	    width="$2"
	    shift
	    ;;
	-s)
	    magic_string="$2"
	    shift
	    ;;
	-f)
	    makefile="$2"
	    shift
	    ;;
	-o)
	    objsuffix="$2"
	    shift
	    ;;
	-*)
	    echo "Unknown option '$1' ignored" 1>&2
	    ;;
	*)
	    files="$files $1"
	    ;;
    esac
    shift
done
echo ' $*' >> $CPPCMD

case "$makefile" in
    '')
	if [ -r makefile ]
	then
	    makefile=makefile
	elif [ -r Makefile ]
	then
	    makefile=Makefile
	else
	    echo 'no makefile or Makefile found' 1>&2
	    exit 1
	fi
	;;
    -)
	makefile=$TMPMAKEFILE
	;;
esac

echo '' > $DEPENDLINES
for i in $files
do
    $CPPCMD $i \
      | sed -n "/^#/s;^;$i ;p"
done \
  | sed -e 's|/[^/.][^/]*/\.\.||g' -e 's|/\.[^.][^/]*/\.\.||g' \
    -e 's|"||g' -e 's| \./| |' \
  | awk '{
	if ($1 != $4  &&  $2 != "#ident")
	    {
	    ofile = substr ($1, 1, length ($1) - 2) "'"$objsuffix"'"
	    print ofile, $4
	    }
	}' \
  | sort -u \
  | awk '
	    {
	    newrec = rec " " $2
	    if ($1 != old1)
		{
		old1 = $1
		if (rec != "")
		    print rec
		rec = $1 ": " $2
		}
	    else if (length (newrec) > '"$width"')
		{
		print rec
		rec = $1 ": " $2
		}
	    else
		rec = newrec
	    }
	END \
	    {
	    if (rec != "")
		print rec
	    }' \
      >> $DEPENDLINES

trap "" 1 2 13 15	# Now we are committed
case "$makefile" in
    $TMPMAKEFILE)
	;;
    *)
	rm -f Makefile.bak
	cp Makefile Makefile.bak
	;;
esac

#
#	Before we go edit the Makefile, we must make sure that magic_string
#	exists, and that it's not the last line.  Otherwise, dear old ed
#	will exit prematurely.  What a pain.
#
cat >> $makefile <<- END_OF_APPEND
	$magic_string

END_OF_APPEND
ed $silent $makefile <<- END_OF_ED_SCRIPT
	/^$magic_string/w $MAGICLINE
	/^$magic_string/,\$d
	\$r $MAGICLINE
	\$r $DEPENDLINES
	w
	q
END_OF_ED_SCRIPT

case "$makefile" in
    $TMPMAKEFILE)
	cat $TMPMAKEFILE
	;;
esac

rm -f ${TMP}*
Commit	Line	Data
d1b2a10e	1	#!/bin/sh
	2	#
	3	# @(#)mdepend.sh 1.3 5/11/88 19:44:36
	4	#
	5	# Do the equivalent of the 'makedepend' program, but do it right.
	6	#
	7	# Usage:
	8	#
	9	# makedepend [cpp-flags] [-w width] [-s magic-string] [-f makefile]
	10	# [-o object-suffix]
	11	#
	12	# Notes:
	13	#
	14	# The C compiler used can be overridden with the environment
	15	# variable "CC".
	16	#
	17	# The "-v" switch of the "makedepend" program is not supported.
	18	#
	19	#
	20	# This script should
	21	# work on both USG and BSD systems. However, when System V.4 comes out,
	22	# USG users will probably have to change "silent" to "-s" instead of
	23	# "-" (at least, that's what the documentation implies).
	24	#
	25	CC=${CC:-cc}
	26
	27	silent='-'
	28
	29	TMP=${TMPDIR:-/tmp}/mdep$$
	30	CPPCMD=${TMP}a
	31	DEPENDLINES=${TMP}b
	32	TMPMAKEFILE=${TMP}c
	33	MAGICLINE=${TMP}d
	34
	35	trap "rm -f ${TMP}*; exit 1" 1 2 15
	36	trap "rm -f ${TMP}*; exit 0" 1 2 13
	37
	38	echo " \c" > $CPPCMD
	39	if [ `wc -c < $CPPCMD` -eq 1 ]
	40	then
	41	c="\c"
	42	n=
	43	else
	44	c=
	45	n="-n"
	46	fi
	47
	48	echo $n "exec $CC -E$c" > $CPPCMD
	49	chmod +x $CPPCMD
	50
	51	files=
	52	makefile=
	53	magic_string='# DO NOT DELETE'
	54	objsuffix='.o'
	55	width=78
	56	while [ $# != 0 ]
	57	do
	58	case "$1" in
	59	-D\|-I)
	60	echo $n " '$1'$c" >> $CPPCMD
	61	;;
	62	-w)
	63	width="$2"
	64	shift
65	;;
66	-s)
67	magic_string="$2"
68	shift
69	;;
70	-f)
71	makefile="$2"
72	shift
73	;;
74	-o)
75	objsuffix="$2"
76	shift
77	;;
78	-*)
79	echo "Unknown option '$1' ignored" 1>&2
80	;;
81	*)
82	files="$files $1"
83	;;
84	esac
85	shift
86	done
87	echo ' $*' >> $CPPCMD
88
89	case "$makefile" in
90	'')
91	if [ -r makefile ]
92	then
93	makefile=makefile
94	elif [ -r Makefile ]
95	then
96	makefile=Makefile
97	else
98	echo 'no makefile or Makefile found' 1>&2
99	exit 1
100	fi
101	;;
102	-)
103	makefile=$TMPMAKEFILE
104	;;
105	esac
106
107	echo '' > $DEPENDLINES
108	for i in $files
109	do
110	$CPPCMD $i \
111	\| sed -n "/^#/s;^;$i ;p"
112	done \
113	\| sed -e 's\|/[^/.][^/]/\.\.\|\|g' -e 's\|/\.[^.][^/]/\.\.\|\|g' \
114	-e 's\|"\|\|g' -e 's\| \./\| \|' \
115	\| awk '{
116	if ($1 != $4 && $2 != "#ident")
117	{
118	ofile = substr ($1, 1, length ($1) - 2) "'"$objsuffix"'"
119	print ofile, $4
120	}
121	}' \
122	\| sort -u \
123	\| awk '
124	{
125	newrec = rec " " $2
126	if ($1 != old1)
127	{
128	old1 = $1
129	if (rec != "")
130	print rec
131	rec = $1 ": " $2
132	}
133	else if (length (newrec) > '"$width"')
134	{
135	print rec
136	rec = $1 ": " $2
137	}
138	else
139	rec = newrec
140	}
141	END \
142	{
143	if (rec != "")
144	print rec
145	}' \
146	>> $DEPENDLINES
147
148	trap "" 1 2 13 15 # Now we are committed
149	case "$makefile" in
150	$TMPMAKEFILE)
151	;;
152	*)
153	rm -f Makefile.bak
154	cp Makefile Makefile.bak
155	;;
156	esac
157
158	#
159	# Before we go edit the Makefile, we must make sure that magic_string
160	# exists, and that it's not the last line. Otherwise, dear old ed
161	# will exit prematurely. What a pain.
162	#
163	cat >> $makefile <<- END_OF_APPEND
164	$magic_string
165
166	END_OF_APPEND
167	ed $silent $makefile <<- END_OF_ED_SCRIPT
168	/^$magic_string/w $MAGICLINE
169	/^$magic_string/,\$d
170	\$r $MAGICLINE
171	\$r $DEPENDLINES
172	w
173	q
174	END_OF_ED_SCRIPT
175
176	case "$makefile" in
177	$TMPMAKEFILE)
178	cat $TMPMAKEFILE
179	;;
180	esac
181
182	rm -f ${TMP}*