No, I'm not getting filosofical here. ;)
Hallo all,
Sometimes one wants to know what depends on a package or vice versa.
To find out, using the local setup.inis, I wrote following script.
It uses make to recursively find and display all dependencies in
either direction.
To find out what needs less:
cyg-deps less
To find out what man needs:
cyg-deps -r man
Insert a '-v' after the script's name to see any messages from make.
(e.g. about circular dependencies.)
This script requires /bin/sh, cat, sed, cygpath, (g)awk, make, a
package-dir left by setup, /etc/setup/last-mirror and
/etc/setup/last-cache.
I hope anyone likes and/or can find a use for it.
L8r,
Buzz.
--
) | | ---/ ---/ Yes, this | This message consists of true | I do not
-- | | / / really is | and false bits entirely. | mail for
) | | / / a 72 by 4 +-------------------------------+ any1 but
-- \--| /--- /--- .sigfile. | |perl -pe "s.u(z)\1.as." | me. 4^re
#!/bin/sh
# Copyright (C) Bas van Gompel 2004.
# All rights reserved. No warranties.
# This software may not be used for aggressive purposes.
RCS_ID='$Id: cyg-deps,v 1.6 2004/12/05 06:54:56 Buzz Exp Buzz $'
this_one='p'
op=' ": " '
the_others='gensub (/^requires: /, "", 1)'
relation="${the_others}${op}${this_one}"
exec 6>/dev/null
while test "$1"x = "-v"x -o "$1"x = "-r"x; do
if test "$1"x = "-v"x; then
exec 6>&2
shift
fi
if test "$1"x = "-r"x; then
relation="${this_one}${op}${the_others}"
shift
fi
done
if test -f /etc/setup/last-mirror; then
for f in $(cat /etc/setup/last-mirror); do
cache_file="$(cygpath -u $(cat /etc/setup/last-cache))/$(\
echo "$f"|sed 's,:,%3a,g;s,/,%2f,g')/setup.ini"
if test -f "$cache_file"; then
awk -f - ${cache_file} <<-EOA \
|make -f - "$@" 2>&6
BEGIN {print "all:"}
/^@/ {ib=1;p=\$2;l=l " " p;next}
/^requires: / {
print ${relation}
print p ":"
print " @echo " p
}
END {print ".PHONY: all" l}
EOA
break
fi
echo "$0: Can not read cache-file ${cache_file}" >&2
done
else
echo "$0: Can not read mirror-file /etc/setup/last-mirror" >&2
fi
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