From 171b318f476dfdda2d6db375a80b48be4aa25357 Mon Sep 17 00:00:00 2001
From: macayu17 <anayush1406@gmail.com>
Date: Wed, 22 Jul 2026 17:28:57 +0530
Subject: [PATCH] pyenv-binary: refuse `build` on macOS before compiling

`generate-installer` refuses a macOS archive, so the last step of the
pipeline cannot succeed there. Left to fail on its own it does so only
after a full source build has been spent, so check the platform up front,
like the entry name guards above it.
---
 plugins/pyenv-binary/libexec/pyenv-binary-build | 11 ++++++++++-
 plugins/pyenv-binary/test/build.bats            |  6 ++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/plugins/pyenv-binary/libexec/pyenv-binary-build b/plugins/pyenv-binary/libexec/pyenv-binary-build
index 216e9198..3a0606d0 100755
--- a/plugins/pyenv-binary/libexec/pyenv-binary-build
+++ b/plugins/pyenv-binary/libexec/pyenv-binary-build
@@ -73,11 +73,20 @@ latest )
   ;;
 esac
 
+os="$(uname -s)"
+
+# `generate-installer' refuses a macOS archive, so the last step here cannot
+# succeed on one. Give up before the build rather than after it.
+if [ "$os" = "Darwin" ]; then
+  echo "pyenv-binary: macOS archives are not supported yet" >&2
+  exit 1
+fi
+
 # `pyenv install' puts a `<version>:<alias>' build under versions/<alias>.
 pyenv-install "$spec"
 pyenv-binary-save "$entry"
 
 # Name the metadata and the archive the way `save' just named them.
-platform="$(uname -s | tr '[:upper:]' '[:lower:]')-$(uname -m)"
+platform="$(printf '%s' "$os" | tr '[:upper:]' '[:lower:]')-$(uname -m)"
 pyenv-binary-generate-installer "${entry}-${platform}.meta" \
   --archive-url "${archive_url%/}/${entry}-${platform}.tar.gz" -o "$entry"
diff --git a/plugins/pyenv-binary/test/build.bats b/plugins/pyenv-binary/test/build.bats
index 5fe9df94..aa216da7 100644
--- a/plugins/pyenv-binary/test/build.bats
+++ b/plugins/pyenv-binary/test/build.bats
@@ -55,6 +55,12 @@ stub_build_environment() {
   assert_failure "pyenv-binary: \`latest' cannot be used as an entry name"
 }
 
+@test "refuses to build on macOS before compiling anything" {
+  create_stub uname 'case "$1" in -s) echo Darwin;; -m) echo arm64;; esac'
+  run pyenv-binary-build 3.12.7:3.12.7-test --archive-url http://x/b
+  assert_failure "pyenv-binary: macOS archives are not supported yet"
+}
+
 @test "builds under the entry name and writes the archive and definition" {
   stub_build_environment
   cd "${BATS_TEST_TMPDIR}"