From: Thomas Lamprecht <t.lamprecht@proxmox.com>
Date: Fri, 25 May 2018 11:20:12 +0000 (+0200)
Subject: buildsys: abi-generate: add usage output
X-Git-Url: https://git.proxmox.com/?p=pve-kernel.git;a=commitdiff_plain;h=a74fe23cf8834e2e644aaea408e3f870fe7f74b4

buildsys: abi-generate: add usage output

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---

diff --git a/debian/scripts/abi-generate b/debian/scripts/abi-generate
index 44704fb..c4a26bf 100755
--- a/debian/scripts/abi-generate
+++ b/debian/scripts/abi-generate
@@ -4,8 +4,12 @@ use PVE::Tools;
 
 use IO::File;
 
-my $input_file = shift;
-my $output_file = shift;
+sub usage {
+    die "USAGE: $0 INFILE OUTFILE [ABI INFILE-IS-DEB]\n";
+}
+
+my $input_file = shift // usage();
+my $output_file = shift // usage();
 my $abi = shift;
 my $extract_deb = shift;
 
@@ -14,6 +18,7 @@ die "input file '$input_file' does not exist\n" if ! -e $input_file;
 my $modules_symver_fh;
 
 if ($extract_deb) {
+	usage() if !defined($abi);
 	my $cmd = [];
 	push @$cmd, ['dpkg', '--fsys-tarfile', $input_file];
 	push @$cmd, ['tar', '-xOf', '-', "./usr/src/linux-headers-${abi}/Module.symvers"];