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|
#!/bin/bash
#
# Copyright (C) 2020 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# in order to easy exprort images built to "external" world
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# 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/>.
# Parse debian/control like content and extract packages required by the
# Build-Depends statement. Return a string with all required packages.
#
# Code below copied from https://stackoverflow.com/a/47707412 - Thank You!
get_build_depends () {
echo $(awk '
/^Build-Depends:/ || /^ / && deps {
sub(/^[^ ]+: /, "")
deps = 1
dep_str = dep_str ", " $0
next
}
{ deps=0 }
END {
split(dep_str, dep_array, /, */)
for (d in dep_array) {
dep = dep_array[d]
gsub(/[^a-z0-9_.-].*$/, "", dep)
if (dep && !seen[dep]++) print dep
}
}' $1)
}
get_runtime_depends () {
echo $(awk '
/^Depends:/ || /^ / && deps {
sub(/^[^ ]+: /, "")
deps = 1
dep_str = dep_str ", " $0
next
}
{ deps=0 }
END {
split(dep_str, dep_array, /, */)
for (d in dep_array) {
dep = dep_array[d]
gsub(/[^a-z0-9_.-].*$/, "", dep)
if (dep && !seen[dep]++) print dep
}
}' $1)
}
# Some packages are required prior to running this script
BOOTSTRAP_PACKAGES="devscripts curl equivs"
for pkg in $BOOTSTRAP_PACKAGES
do
dpkg -s $pkg >/dev/null 2>&1
if [ $? -ne 0 ]; then
echo "Required package \"$pkg\" not installed"
exit 1
fi
done
echo ""
echo "Below you can find a list of packages that are required as build time"
echo "dependency for the individual package"
echo ""
echo "The generated content can be used to populate a file to provision"
echo "e.g. a native build host or a Docker container"
echo ""
echo ""
GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
# First we need to get vyos-world so we know all individual packages for VyOS
curl -L https://github.com/vyos/vyos-world/raw/$GIT_BRANCH/debian/control \
--output /tmp/vyos-world.control --retry 100 --retry-delay 1 --silent
VYOS_PACKAGES=$(get_runtime_depends /tmp/vyos-world.control)
rm -f /tmp/vyos-world.control
for pkg in $VYOS_PACKAGES
do
# Check if repo exists
res=$(curl -o /dev/null --silent -Iw '%{http_code}' https://github.com/vyos/$pkg)
if [[ $res -ne 200 ]]; then
continue
fi
CTRLFILE=/tmp/$pkg.control
curl -L https://github.com/vyos/$pkg/raw/$GIT_BRANCH/debian/control \
--output $CTRLFILE --retry 100 --retry-delay 1 --silent
declare -a array
declare -i length cnt
array=($(get_build_depends $CTRLFILE))
length=${#array[@]}
cnt=0
echo "# Packages needed to build '$pkg' from https://github.com/vyos/$pkg"
echo "apt-get install -y \\"
for name in "${array[@]}"; do
cnt=$((cnt + 1))
if [[ "$cnt" -eq "$length" ]]; then
echo " $name"
else
echo " $name \\"
fi
done
rm -f $CTRLFILE
echo ""
done
|
