83 lines
1.9 KiB
Bash
Executable file
83 lines
1.9 KiB
Bash
Executable file
#!/bin/sh
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# small helper to extract information form *.ent files
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BASEDIR="$(readlink -f "$(dirname $0)")"
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getcurrent() {
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# search for an exact match to use the correct sources.list example
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cd $BASEDIR
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DISTROS="$(find . -mindepth 1 -maxdepth 1 -type d | cut -d'/' -f 2 | LC_ALL=C sort)"
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for DISTRO in $DISTROS; do
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if dpkg-vendor --is $DISTRO; then
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echo $DISTRO
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return 0
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fi
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done
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# if we haven't found a specific, look for a deriving
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# we do ubuntu and debian last as those are the biggest families
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# and would therefore potentially 'shadow' smaller families
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# (especially debian as it sorts quiet early)
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for DISTRO in $DISTROS; do
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if [ "$DISTRO" = 'debian' -o "$DISTRO" = 'ubuntu' ]; then continue; fi
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if dpkg-vendor --derives-from $DISTRO; then
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echo $DISTRO
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return 0
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fi
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done
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# Do the ubuntu/debian dance we talked about
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if dpkg-vendor --derives-from ubuntu; then
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echo ubuntu
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return 0
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fi
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echo debian
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return 0
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}
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if [ "$1" = "--vendor" ]; then
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CURRENT_VENDOR="$2"
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shift 2
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else
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CURRENT_VENDOR=$(getcurrent)
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fi
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INFO="$(readlink -f "${BASEDIR}/$CURRENT_VENDOR/apt-vendor.ent")"
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VERBATIM="${BASEDIR}/../doc/apt-verbatim.ent"
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if [ -z "$INFO" ] || [ ! -e "$INFO" ]; then
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echo >&2 'The current vendor is not valid or not chosen by the buildsystem yet.'
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exit 1
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fi
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getrawfield() {
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awk "/<!ENTITY $1/ {f=NR} f && NR-1==f { print; exit 0 }" RS='"' "${2:-$INFO}"
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}
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getfield() {
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local FIELD="$(getrawfield "$@")"
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FIELD="${FIELD#*>}"
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echo "${FIELD%<*}"
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}
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case "$1" in
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debian-stable-codename|debian-oldstable-codename|debian-testing-codename|ubuntu-codename)
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getrawfield "$1" "$VERBATIM"
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;;
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sourceslist-list-format|keyring-package|current-codename)
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exec $0 --vendor $CURRENT_VENDOR 'vendor' "$@"
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;;
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vendor)
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getfield "$2"
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;;
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verbatim)
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getfield "$2" "$VERBATIM"
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;;
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current)
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echo $CURRENT_VENDOR
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;;
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*)
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echo >&2 "Unknown data field $1 requested"
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exit 2
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;;
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esac
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