From adcd05b36565359fd6d48e20e94eb5bfcb37ddae Mon Sep 17 00:00:00 2001
From: Pranav Sivaraman <pranavsivaraman@gmail.com>
Date: Fri, 18 Oct 2024 23:50:57 -0400
Subject: [PATCH] sccache: new package (ccache-like tool) (#47090)

* sccache: add new package

* sccache: add older versions and minimum rust versions

* sccache: add more minimum rust versions

* sccache: add sccache executable and tag as build-tools

* sccache: add dist-server

* sccache: add determine_version and determin_variants

* sccache: add sccache-dist executable

* sccache: fix style

* Update var/spack/repos/builtin/packages/sccache/package.py

* In case building very old sccache <= 5 is not needed with these older rust version is not needed, they can be omitted.

* sccache: drop older versions

Co-authored-by: Bernhard Kaindl <bernhardkaindl7@gmail.com>

* sccache: add openssl dependency

* sccache: openssl is a linux only dependency?

---------

Co-authored-by: Bernhard Kaindl <bernhardkaindl7@gmail.com>
---
 .../repos/builtin/packages/sccache/package.py | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 var/spack/repos/builtin/packages/sccache/package.py

diff --git a/var/spack/repos/builtin/packages/sccache/package.py b/var/spack/repos/builtin/packages/sccache/package.py
new file mode 100644
index 00000000000..23fbfe8b770
--- /dev/null
+++ b/var/spack/repos/builtin/packages/sccache/package.py
@@ -0,0 +1,65 @@
+# Copyright 2013-2024 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+import os
+import re
+
+import spack.build_systems
+from spack.package import *
+
+
+class Sccache(CargoPackage):
+    """Sccache is a ccache-like tool. It is used as a compiler wrapper and avoids
+    compilation when possible. Sccache has the capability to utilize caching in
+    remote storage environments, including various cloud storage options, or
+    alternatively, in local storage."""
+
+    homepage = "https://github.com/mozilla/sccache"
+    url = "https://github.com/mozilla/sccache/archive/refs/tags/v0.8.2.tar.gz"
+
+    tags = ["build-tools"]
+
+    executables = [r"^sccache$", r"^sscache-dist$"]
+
+    license("Apache-2.0", checked_by="pranav-sivaraman")
+
+    version("0.8.2", sha256="2b3e0ef8902fe7bcdcfccf393e29f4ccaafc0194cbb93681eaac238cdc9b94f8")
+
+    depends_on("rust@1.75:", when="@0.8.2:")
+    depends_on("rust@1.70:", when="@0.7.7:")
+    depends_on("rust@1.67.1:")  # for 0.6/0.7.1 and newer, but may work for even older versions.
+    depends_on("pkgconfig", type="build", when="platform=linux")
+
+    depends_on("openssl", when="platform=linux")
+
+    variant(
+        "dist-server",
+        default=False,
+        description="Enables the sccache-dist binary",
+        when="platform=linux",
+    )
+
+    @classmethod
+    def determine_version(cls, exe):
+        output = Executable(exe)("--version", output=str, error=str)
+        match = re.match(r"sccache (\S+)", output)
+        return match.group(1) if match else None
+
+    @classmethod
+    def determine_variants(cls, exes, version_str):
+        if any(os.path.basename(path) == "sccache-dist" for path in exes):
+            return "+dist-server"
+        else:
+            return "~dist-server"
+
+
+class CargoBuilder(spack.build_systems.cargo.CargoBuilder):
+
+    @property
+    def build_args(self):
+        if self.spec.satisfies("+dist-server"):
+            return ["--features=dist-server"]
+
+        return []