[llvm] [llvm][release] Add links to automatically built packages (PR #147719)

[David Spickett via llvm-commits]

================
@@ -45,9 +45,26 @@ def create_release(repo, release, tag=None, name=None, message=None):
         # Note that these lines are not length limited because if we do so, GitHub
         # assumes that should be how it is laid out on the page. We want GitHub to
         # do the reflowing for us instead.
+        #
+        # Once all the atuomatic binary builds have completed, the HTML comments
+        # in the text below will be removed to reveal the download links.
         message = dedent(
             """\
-LLVM {release} Release
+## LLVM {release} Release
+
+<!-- DOWNLOAD_LINKS_BEGIN
+**Linux:**
+* [x86_64](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-Linux-X64.tar.xz) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-Linux-X64.tar.xz.jsonl))
+* [Arm64](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-Linux-ARM64.tar.xz) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-Linux-ARM64.tar.xz.jsonl))
+
+**macOS:**
+* [Apple Silicon](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-macOS-ARM64.tar.xz) (ARM64) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-macOS-ARM64.tar.xz.jsonl))
+* [Intel](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-macOS-X64.tar.xz) (x86-64) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-macOS-X64.tar.xz.jsonl))
+DOWNLOAD_LINKS_END -->
+
+Download links for Linux and macOS will appear here when all the builds have completed. <!-- DOWNLOAD_LINKS_PLACEHOLDER -->
+
+For Windows, and any other variants of platform and architecture, check the full list of release packages at the bottom of this release page.
----------------
DavidSpickett wrote:

## LLVM {release} Release

* [Linux x86_64](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-Linux-X64.tar.xz) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-Linux-X64.tar.xz.jsonl))
* [Linux Arm64](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-Linux-ARM64.tar.xz) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-Linux-ARM64.tar.xz.jsonl))
* [Linux Armv7-a](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/clang+llvm-{release}-armv7a-linux-gnueabihf.tar.gz) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}}/clang+llvm-{release}-armv7a-linux-gnueabihf.tar.gz.sig))

* [macOS Apple Silicon](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-macOS-ARM64.tar.xz) (ARM64) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-macOS-ARM64.tar.xz.jsonl))
* [macOS Intel](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-macOS-X64.tar.xz) (x86-64) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-macOS-X64.tar.xz.jsonl))

* Windows x64 (64-bit): [installer](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-win64.exe) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-win64.exe.sig)), [archive](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/clang+llvm-{release}-x86_64-pc-windows-msvc.tar.xz) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/clang+llvm-{release}-x86_64-pc-windows-msvc.tar.xz.sig))
* Windows x86 (32-bit): [installer](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-win32.exe) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-win32.exe.sig))
* Windows on Arm (ARM64): [installer](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-woa64.exe) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/LLVM-{release}-woa64.exe.sig)), [archive](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/clang+llvm-{release}-aarch64-pc-windows-msvc.tar.xz) ([signature](https://github.com/llvm/llvm-project/releases/download/llvmorg-{release}/clang+llvm-{release}-aarch64-pc-windows-msvc.tar.xz.sig))

For any other variants of platform and architecture, check the full list of release packages at the bottom of this release page. If you do not find a release package for your platform, you may be able to find a community built package on the LLVM Discourse forum thread for this release. Remember that these are built by volunteers and may not always be available. If you rely on a platform or configuration that is not one of the defaults, we suggest you use the binaries that your platform provides, or build your own release packages.

https://github.com/llvm/llvm-project/pull/147719