Adding upstream version 1.4.3.upstream/1.4.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 57 insertions, 0 deletions

diff --git a/hooks/maybe-jessie-or-older/extract01.sh b/hooks/maybe-jessie-or-older/extract01.sh
new file mode 100755
index 0000000..9a92d6d
--- /dev/null
+++ b/hooks/maybe-jessie-or-older/extract01.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+
+set -eu
+
+# The jessie-or-older extract01 hook has to be run up to the point where the
+# Essential:yes field was removed from the init package (with
+# init-system-helpers 1.34). Since the essential packages have only been
+# extracted but not installed, we cannot use dpkg-query to find out its
+# version. Since /usr/share/doc might be missing due to dpkg --path-exclude, we
+# also cannot check whether /usr/share/doc/init/copyright exists. There also
+# was a time (before init-system-helpers 1.20) where there was no init package
+# at all where we also want to apply this hook. So we just ask apt about the
+# candidate version for init-system-helpers. This should only fail in
+# situations where there are multiple versions of init-system-helpers in
+# different suites.
+ver=$(env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-cache show --no-all-versions init-system-helpers 2>/dev/null | sed -ne 's/^Version: \(.*\)$/\1/p' || printf '')
+if [ -z "$ver" ]; then
+	# there is no package called init-system-helpers, so either:
+	#  - this is so old that init-system-helpers didn't exist yet
+	#  - we are in a future where init-system-helpers doesn't exist anymore
+	#  - something strange is going on
+	# we should only call the hook in the first case
+	ver=$(env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-cache show --no-all-versions base-files 2>/dev/null | sed -ne 's/^Version: \(.*\)$/\1/p' || printf '')
+	if [ -z "$ver" ]; then
+		echo "neither init-system-helpers nor base-files can be installed -- not running jessie-or-older extract01 hook" >&2
+		exit 0
+	fi
+
+	# Jessie is Debian 8
+	if dpkg --compare-versions "$ver" ge 8; then
+		echo "there is no init-system-helpers but base-files version $ver is >= 8 -- not running jessie-or-older extract01 hook" >&2
+		exit 0
+	else
+		echo "there is no init-system-helpers but base-files version $ver is << 8 -- running jessie-or-older extract01 hook" >&2
+	fi
+else
+	if dpkg --compare-versions "$ver" ge 1.34; then
+		echo "init-system-helpers version $ver is >= 1.34 -- not running jessie-or-older extract01 hook" >&2
+		exit 0
+	else
+		echo "init-system-helpers version $ver is << 1.34 -- running jessie-or-older extract01 hook" >&2
+	fi
+fi
+
+# resolve the script path using several methods in order:
+#  1. using dirname -- "$0"
+#  2. using ./hooks
+#  3. using /usr/share/mmdebstrap/hooks/
+for p in "$(dirname -- "$0")/.." ./hooks /usr/share/mmdebstrap/hooks; do
+	if [ -x "$p/jessie-or-older/extract00.sh" ] && [ -x "$p/jessie-or-older/extract01.sh" ]; then
+		"$p/jessie-or-older/extract01.sh" "$1"
+		exit 0
+	fi
+done
+
+echo "cannot find jessie-or-older hook anywhere" >&2
+exit 1