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|
# Library functions for debhelper programs.
#
# Joey Hess, GPL copyright 1997, 1998.
# Run a command, and display the command to stdout if verbose mode is on.
# All commands that modifiy files in $TMP should be ran via this
# function.
# Note that this cannot handle complex commands, especially anything
# involving redirection. Use complex_doit instead.
doit() {
verbose_echo "$@"
if [ ! "$DH_NO_ACT" ]; then
eval '$@'
fi
}
# This is an identical command to doit, except the parameter passed to it
# are evaled with double quotes. This version can handle compound commands.
complex_doit() {
verbose_echo "$@"
if [ ! "$DH_NO_ACT" ]; then
eval "$@"
fi
}
# Echo something if the verbose flag is on.
verbose_echo() {
if [ "$DH_VERBOSE" ]; then
echo " $@"
fi
}
# Echo an error message and exit.
error() {
echo `basename $0`": $1" >&2
exit 1
}
# Output a warning.
warning() {
echo `basename $0`": $1" >&2
}
# Pass it a name of a binary package, it returns the name of the tmp dir to
# use, for that package.
# This is for back-compatability with the debian/tmp tradition.
tmpdir() {
if [ "$DH_TMPDIR" ]; then
echo "$DH_TMPDIR"
elif [ "$1" = "$MAINPACKAGE" ]; then
echo debian/tmp
else
echo "debian/$PACKAGE"
fi
}
# Pass this the name of a binary package, and the name of the file wanted
# for the package, and it will return the actual filename to use. For
# example if the package is foo, and the file is somefile, it will look for
# debian/somefile, and if found return that, otherwise, if the package is
# the main package, it will look for debian/foo, and if found, return that.
# Failing that, it will return nothing.
pkgfile() {
if [ -e "debian/$1.$2" ]; then
echo "debian/$1.$2"
elif [ "$1" = "$MAINPACKAGE" -a -e "debian/$2" ]; then
echo "debian/$2"
fi
}
# Pass it a name of a binary package, it returns the name to prefix to files
# in debian for this package.
pkgext() {
if [ "$1" != "$MAINPACKAGE" ]; then
echo "$PACKAGE."
fi
}
# Returns 1 if the package is a native debian package, null otherwise.
# As a side effect, sets $VERSION to the version of this package.
# Caches return code so it only needs to run dpkg-parsechangelog once.
isnative() {
if [ -z "$DH_ISNATIVE" ]; then
# Make sure we look at the correct changelog.
isnative_changelog=`pkgfile $PACKAGE changelog`
if [ ! "$isnative_changelog" ]; then
isnative_changelog=debian/changelog
fi
# Get the package version.
# Note that the 2>/dev/null is because a bug in dpkg-parsechangelog makes it
# output a bogus error message to stderr.
# If it actually has a real error, then the expr will fail, and this whole
# script will come crashing to a halt, which is good enough to inform
# the user something's wrong. :-)
VERSION=`expr "\`dpkg-parsechangelog -l$isnative_changelog 2>/dev/null\`" : \
'.*Version: \(.*\).*Distribution:'`
# Is this a native Debian package?
if expr "$VERSION" : '.*-' >/dev/null; then
DH_ISNATIVE=1
else
DH_ISNATIVE=0
fi
fi
return "$DH_ISNATIVE"
}
# Automatically add a shell script snippet to a debian script.
# Only works if the script has #DEBHELPER# in it.
#
# Parameters:
# 1: script to add to
# 2: filename of snippet
# 3: sed commands to run on the snippet. Ie, s/#PACKAGE#/$PACKAGE/
autoscript() {
autoscript_script=$1
autoscript_filename=$2
autoscript_sed=$3
autoscript_debscript=debian/`pkgext $PACKAGE`$autoscript_script.debhelper
if [ -e "$DH_AUTOSCRIPTDIR/$autoscript_filename" ]; then
autoscript_filename="$DH_AUTOSCRIPTDIR/$autoscript_filename"
else
if [ -e "/usr/lib/debhelper/autoscripts/$autoscript_filename" ]; then
autoscript_filename="/usr/lib/debhelper/autoscripts/$autoscript_filename"
else
error "/usr/lib/debhelper/autoscripts/$autoscript_filename does not exist"
fi
fi
complex_doit "echo \"# Automatically added by `basename $0`\" >> $autoscript_debscript"
complex_doit "sed \"$autoscript_sed\" $autoscript_filename >> $autoscript_debscript"
complex_doit "echo '# End automatically added section' >> $autoscript_debscript"
}
# Argument processing and global variable initialization is below.
# If DH_OPTIONS is set, prepend it to the command line.
if [ "$DH_OPTIONS" ]; then
set -- $DH_OPTIONS $@
fi
# Check to see if an argument on the command line starts with a dash.
# if so, we need to pass this off to the resource intensive perl.
for arg; do
if expr "$arg" : '-' >/dev/null ; then
parseopt=1
break
fi
done
if [ "$parseopt" ]; then
parseopt=""
# Parse command line. I wrote a perl program to do this becuase
# getopt(1) is so broken. Note: the quotes around $@ are very
# important!
eval `dh_getopt.pl "$@"`
if [ "$DH_PARSE_ERROR" ]; then
error "$DH_PARSE_ERROR"
fi
fi
# Get the name of the main binary package (first one listed in
# debian/control).
MAINPACKAGE=`grep ^Package: debian/control | cut -d " " -f 2 | head -1`
# Check if packages to build have been specified, if not, fall back to
# the default, doing them all.
if [ ! "$DH_DOPACKAGES" ]; then
if [ "$DH_DOINDEP" -o "$DH_DOARCH" -o "$DH_DOSAME" ]; then
error "I have no package to build."
fi
DH_DOPACKAGES=`grep ^Package: debian/control | cut -d " " -f 2 | tr "\n" " "`
fi
# Check to see if -P was specified. If so, we can only act on a single
# package.
if [ "$DH_TMPDIR" ] && echo "$DH_DOPACKAGES" | egrep -q '.+ .+' ; then
error "-P was specified, but multiple packages would be acted on."
fi
# Figure out which package is the first one we were instructed to build.
# This package gets special treatement, files and directories specified on
# the command line may effect it.
for PACKAGE in $DH_DOPACKAGES ; do
DH_FIRSTPACKAGE="$PACKAGE"
break
done
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