build-and-deploy(i686): rebase the .dll base addresses

This is necessary to avoid the dreaded i686 problems described in
https://github.com/git-for-windows/git/wiki/32-bit-issues whose symptoms
can look like this:

      1 [main] perl 5307 child_info_fork::abort: address space needed by 'Cwd.dll' (0x1F0000) is already occupied

For an example where this symptom raises its ugly head see e.g.
https://github.com/git-for-windows/git-for-windows-automation/actions/runs/3747937026/jobs/6364819440

Let's use the common strategy to run the `rebaseall` script. This is a
slightly edited copy of the same step in MSYS2-packages'
`build-and-deploy` workflow:
https://github.com/git-for-windows/MSYS2-packages/blob/6628f78d1359/.github/workflows/build-and-deploy.yml#L60-L76

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

.github/workflows/build-and-deploy.yml

@@ -154,6 +154,35 @@ jobs:
         shell: bash
         run: pacman -Syyu --noconfirm
 
+      - name: rebase `.dll` base addresses
+        if: env.ARCHITECTURE == 'i686' && !contains('msys2-runtime gnupg', env.PACKAGE_TO_BUILD)
+        shell: powershell
+        run: |
+          cd C:\git-sdk-32-full
+          if (!$?) { exit(1); }
+
+          $env:MSYSTEM = "MINGW32"
+          $env:PATH = "$(Get-Location)\usr\bin;" + $env:PATH
+          $env:MSYS2_PATH_TYPE = "minimal"
+
+          # Disable pacman's post-transaction hook that would mess everything up, if it exists
+          sh.exe -lc "set -x && rm -f /usr/share/libalpm/hooks/rebase.hook"
+
+          sh.exe -lc "set -x && find /usr/lib/perl5/*_perl -name \*.dll >perl-dlls.txt"
+          type perl-dlls.txt
+          dash -x /usr/bin/rebaseall -p -T perl-dlls.txt
+
+          # Work around for:
+          # - address space needed by 'Cwd.dll' is already occupied
+          # - address space needed by 'Dumper.dll' is already occupied
+          # etc
+          bash -lc "set -x && rebase -b 0x61500000 /usr/lib/perl5/core_perl/auto/*/{*,*/*}.dll"
+          # Work around for:
+          # - address space needed by 'Cwd.dll' is already occupied
+          bash -lc "set -x && rebase -v -b 0x63f00000 /usr/lib/perl5/core_perl/auto/Cwd/Cwd.dll"
+          # verify the base address
+          bash -lc "set -x && rebase -v -i /usr/lib/perl5/core_perl/auto/Cwd/Cwd.dll"
+
       - name: Get GPG key(s)
         shell: bash
         env: