From 43f27989f84e97c8bb5ed69805f83e59b42be912 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Thu, 15 Jun 2023 19:16:45 +0100
Subject: [PATCH] debian/update-build-deps: Add versions

This ensures that we will migrate only after our actual build-deps do.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 debian/update-build-deps | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/debian/update-build-deps b/debian/update-build-deps
index 99e73c8..8d5b849 100755
--- a/debian/update-build-deps
+++ b/debian/update-build-deps
@@ -20,6 +20,16 @@ our %replace = (
     clap => 'librust-clap-3+derive-dev',
 	       );
 
+sub convert_version ($) {
+  local ($_) = @_;
+  s{^\>= ?([^,]+)\, \<[^,]+$}{$1};
+  if (m{^\d+(?:\.\d+){0,2}$}) {
+    return "(>= $_~)";
+  } else {
+    warn "don't know how to convert Cargo version spec \`$_`";
+  }
+}
+
 while (<I>) {
   if (m{^\# debian/update-build-deps}i...m{^\S}) {
     next if m{^ +librust[-+a-z0-9.]+ (?:\(.*\) )?\<!upstream-cargo\>,?\s*$};
@@ -39,6 +49,11 @@ while (<I>) {
 	    }
 	    next if length $info->{path};
 
+
+	    my $version = $info->{version} // die "$file $p ?";
+	    $version = convert_version($version);
+	    $version = " $version" if length $version;
+
 	    $p =~ y/_/-/;
 	    my $dep = $replace{$p};
 	    if (!defined $dep) {
@@ -46,7 +61,7 @@ while (<I>) {
 	      $dep = "librust-$p$f-dev";
 	    }
 	    if (length $dep) {
-	      $outputs{"$dep <!upstream-cargo>"}++;
+	      $outputs{"$dep$version <!upstream-cargo>"}++;
 	    }
 	  }
 	}
-- 
2.30.2