[dscho]

These fixes mainly hail from the -rc rebases of Microsoft Git, where I realized a couple of issues that affect Git for Windows' patch thicket itself (and not the patches Microsoft Git puts on top). The fixes fall into two categories: fall-out from the MINGW64 -> UCRT64 transition, and fall-out from deprecating git survey in favor of git repo structure.

[Copilot]

🟡 Changes recommended

The migration guide recommends unsupported options and configuration variables.

1 open finding

• Document legacy controls without direct replacements · New

What changed in this PR

Updates Windows tooling for UCRT64 and documents migration from git survey to git repo structure.

Changes:

• Switches Windows SDK assumptions from MINGW64 to UCRT64.
• Updates CI runtime paths and failure-report permissions.
• Adds migration guidance for deprecated survey options and configuration.

File	Description
t/​t0060-path-utils.sh	Updates the default test prefix to UCRT64.
Documentation/​git-survey.adoc	Adds migration guidance for the survey shim.
Documentation/​config/​survey.adoc	Marks survey.* settings as ignored.
AGENTS.md	Updates SDK build instructions for UCRT64.
.github/​workflows/​nano-server.yml	Mounts runtime DLLs from the active SDK.
.github/​workflows/​main.yml	Makes the environment file writable during failure reporting.

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[dscho]

Those options had never been part of the git survey carried in Git for Windows, so that suggestion is half-wrong.

[dscho]

Range-diff before/after the force-push

• 1: dfec2f9 ! 1: d135173 fixup! survey: turn into a thin shim over git repo structure

  @@ Commit message
   
       The deprecation note still promises behavior intentionally removed by
       the shim. Explain the migration to `git repo structure` so users can
  -    choose their ref scope and output, including opting out of name lookup,
  -    without relying on ignored configuration or unsupported options.
  +    choose their ref scope and output without relying on ignored configuration
  +    or unsupported options.
   
  -    Assisted-by: GPT-6
  +    Assisted-by: GPT-6 Astra and GPT-6.1 Sol
       Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
   
    ## Documentation/config/survey.adoc ##
  @@ Documentation/git-survey.adoc: only refs for the given options are added.
   +always supplies `--top` (10 unless overridden on its command line), so
   +`repo.structure.top` does not change `git survey`'s limit.
   +
  -+`--commit-parents=<n>`, `--commit-sizes=<n>`, `--tree-entries=<n>`,
  -+`--tree-sizes=<n>`, `--blob-sizes=<n>`, and `--[no-]name-rev` retain their
  -+names in `git repo structure`, but are not accepted by the shim. Each
  -+object-list limit defaults to 0.
  -+
  -+Name lookup for ranked commits is now enabled by default. Use
  -+`git repo structure --no-name-rev` or set `repo.structure.nameRev=false`
  -+to opt out; the configuration also applies through `git survey`.
  -+
  -+All `survey.*` settings are ignored. For `top`, `nameRev`,
  -+`showCommitParents`, `showCommitSizes`, `showTreeEntries`, `showTreeSizes`,
  -+and `showBlobSizes`, replace the `survey.` prefix with `repo.structure.`
  -+when invoking `git repo structure` directly. Use `--progress` or
  -+`--no-progress` instead of `survey.progress`; no `repo.structure.progress`
  -+exists. `survey.verbose` has no replacement; the shim ignores `--verbose`
  -+with a warning.
  ++The `git survey` shim ignores all `survey.*` configuration settings.
  ++When invoking `git repo structure` directly, use `repo.structure.top`
  ++in place of `survey.top`; this setting does not affect `git survey`.
  ++Use `--progress` or `--no-progress` instead of `survey.progress`;
  ++there is no `repo.structure.progress` setting. `survey.verbose` has
  ++no replacement, and the shim ignores `--verbose` with a warning.
   +
    OUTPUT
    ------

• 2: 3e0d69e = 2: 9331d90 ci(dockerized): really do show the result of failing tests again

• 3: 24522a0 = 3: 638499a fixup! mingw: allow git.exe to be used instead of the "Git wrapper"