From 0d580e0b195727d9efd5912f74d1de3c2b9169ab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Romain=20Tarti=C3=A8re?= <romain@blogreen.org>
Date: Mon, 1 Jan 2024 12:08:01 -1000
Subject: [PATCH] Make latest version detection portable

This is currently broken on FreeBSD do to the usage of GNU-grep specific
grep(1) flag: `-P`.

We can use a single sed(1) command with an extended regular expression
to achieve the same goal, so use this instead.
---
 manifests/pip.pp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/manifests/pip.pp b/manifests/pip.pp
index 199e7925..a7ee7a2f 100644
--- a/manifests/pip.pp
+++ b/manifests/pip.pp
@@ -220,7 +220,7 @@
         $latest_version = join([
             "${pip_install} ${legacy_resolver} ${pypi_index} ${pypi_extra_index} ${proxy_flag}",
             " ${install_args} ${install_editable} ${real_pkgname}==notreallyaversion 2>&1",
-            ' | grep -oP "\(from versions: .*\)" | sed -E "s/\(from versions: (.*?, )*(.*)\)/\2/g"',
+            " | sed -nE 's/.*\\(from versions: (.*, )*(.*)\\)/\\2/p'",
             ' | tr -d "[:space:]"',
         ])