portable: add arm64 artifact option

[dennisameling]

Builds further on #321. Very much a proof of concept, just sharing here for inspiration.

Example release based on this PR: https://github.com/dennisameling/git/releases/tag/2.30.0-beta2

Results in an actual working portable installer for ARM64 when taking the following steps:

• sdk build mingw-w64-git
• pacman -U mingw-w64-i686-git-2.30.0.2.f8cbc844b8-1-any.pkg.tar.xz (replace the filename with the actual filename that's generated)
• sdk build git-extra (so that /etc/profile gets overwritten to include ARM64)
• pacman -U git-extra-1.1.513.20ab9a5-1-i686.pkg.tar.xz (replace the filename with the actual filename that's generated)
• (create the arm64 binaries now and output to C:\git-sdk-32\arm64)
• Go into /usr/src/build-extra/portable and run mkdir -p arm64 && ./release.sh --include-arm64-artifacts=/arm64 --output=./arm64 2.30.0

It then looks like this on an ARM64 device:

[dscho]

If we allow specifying an argument (like --output <directory>), we do not have to hard-code /arm64 here.

I think I like that idea.

And if we go that route, the option should probably be renamed to --include-arm64-artifacts=<directory> or some such.

[dennisameling]

Changed in 6e5a2e7. Can now run ./release.sh --include-arm64-artifacts=/arm64 --output=./arm64 2.30.0 (the --output option was already there and I simply use it to easily find back the generated .7z.exe file 😊)

Output:

$ ./release.sh --include-arm64-artifacts=/arm64 --output=./arm64 2.30.0
Including ARM64 artifacts from /arm64
7za is /usr/bin/7za
Creating archive

7-Zip (a) [32] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=nl_NL.UTF-8,Utf16=on,HugeFiles=on,32 bits,8 CPUs Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz (906ED),ASM,AES-NI)

Scanning the drive:
92 folders, 6209 files, 708249591 bytes (676 MiB)

Creating archive: /tmp.7z

Items to compress: 6301


Files read from disk: 6203
Archive size: 48514387 bytes (47 MiB)
Everything is Ok
Success! You will find the new installer at "./arm64/PortableGit-2.30.0-arm64.7z.exe".
It is a self-extracting .7z archive.

[dennisameling]

Just updated please.sh to add an --extra-args argument, which is then passed to the appropriate release.sh script - details in dc69222

Example invocation in https://github.com/dennisameling/git/runs/1799017569?check_suite_focus=true:

/usr/src/build-extra/please.sh make_installers_from_mingw_w64_git --extra-args=\"--include-arm64-artifacts=`$PWD/arm64\" --version=`$(cat pkg-i686/ver) -o artifacts --${{matrix.artifact.name}} --pkg=pkg-i686/mingw-w64-i686-git-[0-9]*.tar.xz --pkg=pkg-i686/mingw-w64-i686-git-doc-html-[0-9]*.tar.xz

... which correctly results in a PortableGit executable that includes the /arm64 binaries 🎉

[dennisameling]

@dscho just applied your suggestion and squashed the commits 👍🏼 should be good to go now!

[dscho]

I adjusted this only slightly before merging. Thank you!