This tracking issue is intended as a roadmap of the steps required to implement the full functional test suite of VFSForGit in Azure DevOps CI for the Linux platform.

• Enable full Linux unit test CI on the features/linuxprototype branch:
  • Enable the PR - Linux - Build and Unit Test pipeline with MirrorProvider build tasks on all PRs to branch (thanks, @jrbriggs!)
  • Merge [Linux] Implement update methods on Linux for placeholder files/dirs microsoft/VFSForGit#1128, then remove the CPPFLAGS environment variables from the MirrorProvider build tasks.
  • Merge wait for mount (+ refactor) #21 into [Linux] Add GVFS platform and build configuration for Linux microsoft/VFSForGit#1125.
  • Implement Set initial projection state on backing store at first mount libprojfs#71 (Determine top-level projection state and pass to libprojfs at mount time #20) (Determine top-level projection state and pass to libprojfs at mount time #24) (Determine initial projection state in provider rather than ProjFS layer #27) (VirtualizationInstance takes initializeStorageRoot flag #28)
  • Merge [Linux] Add GVFS platform and build configuration for Linux microsoft/VFSForGit#1125, then enable the VFSForGit build tasks within the PR - Linux - Build and Unit Test pipeline.
  • Implement Detect and set projection state on read-only files libprojfs#72 (resolve problem with "git add" on mounted repos #23)
  • Support case-sensitive file matching (Support case-sensitive file matching on Linux #29) (Perform case-sensitive path comparisons on Linux microsoft/VFSForGit#1232) ([Linux] Support case-sensitive filesystems microsoft/VFSForGit#1412) (restore mixed-case prefetch folder list tests and tidy MirrorProviders microsoft/VFSForGit#1503) ([Linux] minor POSIX and path case comparison fixups microsoft/VFSForGit#1531)
• Resolve any outstanding problems running the functional test suite on Linux:
  • Enable all relevant functional tests marked Mac-only or Windows-only. (enable on Linux all relevant functional tests marked Mac/Windows-only #33)
  • Ensure any necessary PRs are merged into features/linuxprototype ([Linux] enable most functional tests on Linux microsoft/VFSForGit#1432)
  • Ensure any necessary PRs are merged into master ([Linux] Convert tests and repair jobs to use backing root microsoft/VFSForGit#1411) ([Linux] Support case-sensitive filesystems microsoft/VFSForGit#1412) ([Linux] Revise functional tests for cross-device mounts microsoft/VFSForGit#1413) ([POSIX] Use platform-specific path separators in repair jobs and cache tests microsoft/VFSForGit#1448) ([POSIX] convert Mac-specific functional tests to POSIX where viable microsoft/VFSForGit#1529) ([Linux] Use backing root and check min version in dehydrate commands/tests microsoft/VFSForGit#1535)
• Resolve custom Git installation and packaging:
  • Rewrite "git build Linux installer" task to create .deb package within NuGet package and push to MyGet.
  • Add Linux build task to "git - build installers" pipeline.
• Enable full Linux functional test CI on the features/linuxprototype branch:
  • Either an Azure DevOps task group, or, if following the Mac model, a GitHub CI job instead.

Possible additional steps:

• Once functional test CI is successfully working on features/linuxprototype:
  • Refactor out all duplicate code between the Mac and Linux implementations, expanding the POSIX layer (e.g., introducing a ProjFS.POSIX set of classes as per the posix-projfs-virt-instance branch.
  • Merge features/linuxprototype into master and convert both CI jobs to run against master.
  • 🍾 or 🍨, as desired.