Fix undefined auditwheel policy panic

.codespellrc

@@ -1,2 +1,3 @@
 [codespell]
 ignore-words-list = crate
+skip = ./.git,./target,./test-crates/venvs,./guide/book

Changelog.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * Fix docs for `new` and `init` commands in `maturin --help` in [#734](https://github.com/PyO3/maturin/pull/734)
 * Add support for x86_64 Haiku in [#735](https://github.com/PyO3/maturin/pull/735)
+* Fix undefined auditwheel policy panic in [#740](https://github.com/PyO3/maturin/pull/740)
 
 ## [0.12.4] - 2021-12-06
 

src/auditwheel/audit.rs

@@ -37,6 +37,9 @@ pub enum AuditWheelError {
     /// The elf file isn't manylinux/musllinux compaible. Contains unsupported architecture
     #[error("Your library is not {0} compliant because it has unsupported architecture: {1}")]
     UnsupportedArchitecture(Policy, String),
+    /// This platform tag isn't defined by auditwheel yet
+    #[error("{0} compatibility policy is not defined by auditwheel yet, pass `--skip-auditwheel` to proceed anyway")]
+    UndefinedPolicy(String),
 }
 
 #[derive(Clone, Debug)]
@@ -281,7 +284,9 @@ pub fn auditwheel_rs(
     }
 
     if let Some(platform_tag) = platform_tag {
-        let mut policy = Policy::from_name(&platform_tag.to_string()).unwrap();
+        let tag = platform_tag.to_string();
+        let mut policy =
+            Policy::from_name(&tag).ok_or_else(|| AuditWheelError::UndefinedPolicy(tag))?;
         policy.fixup_musl_libc_so_name(target.target_arch());
 
         if let Some(highest_policy) = highest_policy {

tests/manylinux_incompliant.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Fail because we're running in manylinux2014, which can't build for manylinux 2010
-for PYBIN in /opt/python/cp3[6]*/bin; do
+for PYBIN in /opt/python/cp3[9]*/bin; do
   if cargo run -- build --no-sdist -m test-crates/pyo3-mixed/Cargo.toml -i "${PYBIN}/python" --manylinux 2010 -o dist; then
     echo "maturin build unexpectedly succeeded"
     exit 1
@@ -12,11 +12,21 @@ done
 
 # Fail because we're linking zlib with black-listed symbols(gzflags), which is not allowed in manylinux
 yum install -y zlib-devel
-for PYBIN in /opt/python/cp3[6]*/bin; do
+for PYBIN in /opt/python/cp3[9]*/bin; do
   if cargo run -- build --no-sdist -m test-crates/lib_with_disallowed_lib/Cargo.toml -i "${PYBIN}/python" --manylinux 2014 -o dist; then
     echo "maturin build unexpectedly succeeded"
     exit 1
   else
     echo "maturin build failed as expected"
   fi
 done
+
+# Fail because manylinux_2_99 policy is not defined by auditwheel
+for PYBIN in /opt/python/cp3[9]*/bin; do
+  if cargo run -- build --no-sdist -m test-crates/pyo3-mixed/Cargo.toml -i "${PYBIN}/python" --compatibility manylinux_2_99 -o dist; then
+    echo "maturin build unexpectedly succeeded"
+    exit 1
+  else
+    echo "maturin build failed as expected"
+  fi
+done