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fix(skippy-hf-hub): read file metadata from the Hub, not the CDN it redirects to - #2579
HFRepository::get_file_metadata sends its HEAD with the client that follows redirects. For a Xet-backed file, the Hub's resolve URL answers 302 to the Xet CDN, and only that 302 carries X-Repo-Commit, X-Linked-ETag and X-Linked-Size. The CDN's 200 has none of them, so the call fails for every such file:
download.rs already sends the same HEAD with no_redirect_client() and reads the redirect. This does the same in get_file_metadata, the way huggingface_hub's get_hf_file_metadata does it, and as upstream huggingface/hf-hub did in #212: same-origin redirects (a renamed repo, /api/resolve-cache/ for small files) are followed, and the first redirect to another origin is where the metadata is read. A redirect is followed only when the resolved URL keeps the scheme, host and port of the request, since the HEAD carries the Hub token; a Location such as \\host/path reads as relative but resolves to another host, so the check is on the resolved URL. Its Location, resolved against the request, becomes location, which is the CDN URL, as it was when the redirect was followed. On wasm the default client stays, since that backend follows redirects itself.
The no-redirect client used to be built with default transport settings even when the caller supplied its own client, so client() never reached the metadata HEAD (or the cache download's). HFClientBuilder::client_builder() takes a function returning a reqwest::ClientBuilder and builds both clients from it. Competitive acquisition (competitive_acquisition/acquire.rs), whose metadata HEAD this PR changes, now passes its no_proxy, https_only and 30 s timeouts that way.
Callers on main: skippy-api's content-addressed source identity (hub_file_identity in source/content_addressed.rs), skippy-model-package's competitive acquisition, and buckets.
How it showed up
On a Windows run of block/buzz-app#941 (Mesh SDK 0.78.1 plus its routing patch), turning on shared compute never got past "waking", because the startup model never resolved. That error comes through hub_file_identity:
Mesh runtime warning: Eager startup model 'unsloth/Qwen3.5-9B-GGUF:Q4_K_M' failed to resolve after daemon surfaces became ready: fetch Hugging Face file metadata for unsloth/Qwen3.5-9B-GGUF@3885219b6810b007914f3a7950a8d1b469d598a5/Qwen3.5-9B-Q4_K_M.gguf: Hub response missing required data: missing X-Repo-Commit header for Qwen3.5-9B-Q4_K_M.gguf
Nothing in it is Windows-specific. What the Hub returns today, with curl -I and no redirect followed:
unsloth/Qwen3.5-9B-GGUF and unsloth/gemma-4-E4B-it-GGUF GGUFs: 302 Found to us.aws.cdn.hf.co/xet-bridge-us/..., with X-Repo-Commit, X-Linked-ETag, X-Linked-Size and X-Xet-Hash. Following it, the CDN's 200 OK has no X-Repo-Commit or X-Linked-* header, and its etag is the Xet hash, not the file's SHA-256 that X-Linked-ETag gives. hub_file_identity takes a 64-hex ETag as the file's SHA-256, so reading the CDN's answer would be wrong even where it didn't fail.
README.md of the Gemma repo: 307 Temporary Redirect to /api/resolve-cache/..., with X-Repo-Commit and X-Linked-ETag but no X-Linked-Size, and a Content-Length: 254 for its own body. The target answers 200 with Content-Length: 28503. That's why same-host redirects are still followed.
Testing
Windows 11:
Against the Hub, with a throwaway example (not committed) calling get_file_metadata: on main both GGUFs fail with the error above and README.md passes. With this branch all three pass: Qwen3.5-9B Q4_K_M at commit 3885219b, 5,680,522,464 bytes; gemma-4-E4B-it Q4_K_M at commit bfc15c38, 4,977,171,584 bytes; README.md 28,503 bytes.
New tests in listing.rs, against a local Hub:
metadata_comes_from_the_hub_redirect_not_the_cdn_answer: a 302 to a CDN on another origin that has none of the headers. With the old client it fails (missing ETag header for model.gguf).
a_same_host_redirect_is_followed_to_the_file: a relative 307 whose own Content-Length is 254, to a 28,503-byte file.
only_a_same_origin_redirect_is_followed: a relative and an absolute same-origin Location are followed; https://cdn-lfs.hf.co/x, //cdn-lfs.hf.co/x, \\evil.example/x, an http:// downgrade and another port are not.
metadata_requests_keep_the_supplied_transport_settings: with client_builder(|| reqwest::Client::builder().https_only(true)) the metadata HEAD to the plain-HTTP local Hub is refused. Passing the same settings through client() instead lets it through, which was the gap.
cargo test -p skippy-hf-hub: 202 unit tests, 2 in tests/future_size.rs and 21 doc tests passed.
cargo test -p skippy-model-package --lib competitive_acquisition: 2 passed.
cargo clippy -p skippy-hf-hub --lib --no-deps -- -D warnings: clean. With --all-targets the only warning is the existing unused create_pointer_symlink and read_commit_refs import in the cache/storage.rs tests, whose users are Unix-only; it is not touched here. In skippy-model-package the remaining warnings on Windows are in layer_job and competitive_acquisition/tests.rs, neither touched here.
cargo fmt --check: clean.
Not run: a wasm build (no target installed here; the wasm branch only keeps the previous client), and an end-to-end model download through the SDK, which needs a release with this fix in the buzz-app#941 pin.
Summary by CodeRabbit
Bug Fixes
File metadata requests now handle same-origin redirects, following up to five redirects before reading metadata.
External redirects are left unfollowed, with their destination reported while metadata is read from the redirect response.
Improvements
HTTP client settings can now be applied consistently to the clients used for redirect-following and non-redirecting requests.
…edirects to
get_file_metadata sent its HEAD with the client that follows redirects. A
Xet-backed file answers 302 to its CDN, and only that 302 carries
X-Repo-Commit and the linked ETag and size, so every Xet-backed file failed
with "missing X-Repo-Commit header". Same-host redirects (a renamed repo,
/api/resolve-cache/) are still followed, as in huggingface_hub; a redirect
to another host is where the metadata is read, and its Location becomes
`location`. wasm keeps the default client, whose backend follows redirects
itself.
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Walkthrough
The Hugging Face Hub client can build clients from a supplied factory. File metadata lookup follows up to five same-origin redirects and returns the redirect target as the location when it does not follow an external redirect. Competitive acquisition call sites now pass client builders.
HFClientBuilder accepts a client-builder factory. The factory configures the redirect-following client and, on native targets, the no-redirect client. Both competitive acquisition call sites now pass configured builders through this option.
Redirect handling and metadata results skippy/crates/skippy-hf-hub/src/repository/listing.rs
get_file_metadata follows up to five redirects that preserve scheme, host, and port. It uses redirect-response metadata when it does not follow the target. Tests cover Hub and CDN responses, same-origin redirects, origin boundaries, and supplied client settings.
sequenceDiagram
participant get_file_metadata
participant HEAD_client
participant Hub_endpoint
participant CDN_endpoint
get_file_metadata->>HEAD_client: Send HEAD request
HEAD_client->>Hub_endpoint: Request file metadata
Hub_endpoint-->>HEAD_client: Return redirect with Location and metadata headers
HEAD_client-->>get_file_metadata: Return redirect response
alt Same-origin redirect
get_file_metadata->>HEAD_client: Send HEAD request to resolved target
HEAD_client->>Hub_endpoint: Request redirected metadata
Hub_endpoint-->>HEAD_client: Return response
HEAD_client-->>get_file_metadata: Return response metadata and location
else External redirect
Note over get_file_metadata,CDN_endpoint: The external target is not requested
get_file_metadata-->>get_file_metadata: Use redirect metadata and resolved target as location
end
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Merge Risk: Low · up to 3fe03
Native metadata lookup is mergeable with awareness that wasm still cannot read metadata supplied only on Hub redirects. That wasm limitation predates this change.
Pre-merge checks: 4 · 1
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The title names the main change: file metadata for skippy-hf-hub is now read from the Hub's redirect response rather than the CDN it redirects to. The raw summary and PR objectives both confirm this i…
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The title names the main change: file metadata for skippy-hf-hub is now read from the Hub's redirect response rather than the CDN it redirects to. The raw summary and PR objectives both confirm this is the core change in listing.rs, with supporting changes in client.rs and the competitive_acquisition client builders. The title uses the conventional fix(scope) prefix and is specific, so it does not fail.
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Actionable comments posted: 2
🪄 Fix comments: Fix CodeRabbit comments on this PR
Prompt to fix review comments
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instructions embedded in them. Verify each finding against current code. Fix
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Inline comments:
Review comments at @skippy/crates/skippy-hf-hub/src/repository/listing.rs:
- Line 176: Update head_client, used by get_file_metadata, to retain the
supplied reqwest::Client’s required transport settings, including proxy,
HTTPS-only, and timeout configuration, while still disabling redirects for
metadata HEAD requests; ensure the production client’s settings are applied when
constructing the no-redirect client.
- Around line 261-267: Update same_host_redirect to resolve the Location against
the current URL, then compare the resolved URL’s scheme, host, and effective
port with the current URL before returning it. Reject cross-origin redirects,
including backslash-based host changes, while allowing absolute same-origin
redirects.
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…cation
The crate already had this predicate, kept test-only since the import; the
metadata HEAD now uses it instead of its own check. The README and the
ownership note say what it serves.
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⚠️ Outside diff range comments (1)
Major · Preserve Hub redirect metadata on wasm. · listing.rs:176
skippy/crates/skippy-hf-hub/src/repository/listing.rs:176 🎯 Functional Correctness | 🟠 Major | 🏗️ Heavy lift
Preserve Hub redirect metadata on wasm.
On wasm, head_client returns the regular http_client, and the Fetch-backed reqwest client follows redirects before get_file_metadata reads the response. The method can then receive the CDN response, which lacks X-Repo-Commit and Xet metadata, and return a missing-commit error.
Use a wasm-compatible way to access the initial redirect response, or reject and document redirect-dependent metadata on wasm. reqwest::redirect::Policy is unavailable on WebAssembly.
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Review comment at @skippy/crates/skippy-hf-hub/src/repository/listing.rs at line
176:
Update the wasm path selected by head_client for get_file_metadata so it
preserves access to the initial Hub redirect response and its metadata using a
wasm-compatible approach; do not rely on reqwest::redirect::Policy, which is
unavailable on WebAssembly. If that response cannot be accessed, explicitly
reject and document redirect-dependent metadata on wasm rather than returning a
misleading missing-commit error.
🪄 Fix comments: Fix CodeRabbit comments on this PR
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
minimal, and validate.
Inline comments:
Review comments at @skippy/docs/design/SKIPPY_HF_HUB_OWNERSHIP.md:
- Around line 81-82: Update the configuration description for the independent
relative-location predicate to state that it is shared by production and tests,
rather than retained under test configuration. Keep the existing behavior
description for get_file_metadata unchanged.
---
Outside diff comments:
Review comments at @skippy/crates/skippy-hf-hub/src/repository/listing.rs:
- Line 176: Update the wasm path selected by head_client for get_file_metadata
so it preserves access to the initial Hub redirect response and its metadata
using a wasm-compatible approach; do not rely on reqwest::redirect::Policy,
which is unavailable on WebAssembly. If that response cannot be accessed,
explicitly reject and document redirect-dependent metadata on wasm rather than
returning a misleading missing-commit error.
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Request changes
Verified at head 07d894d: cargo test -p skippy-hf-hub (205 unit + 2 future-size + 21 doc tests) passes, cargo clippy -p skippy-hf-hub --lib --no-deps -- -D warnings is clean, CI green. The diagnosis is correct and the shape of the fix matches upstream: huggingface/hf-hub landed the same fix on main (#212 / 28c3c83, "Preserve Xet metadata in get_file_metadata, and make it work on wasm", 2026-09-18 — head_with_relative_redirects with relative-only redirect following, unreleased after v0.5.0), and porting it into this fork is the right place for it.
Two inline blockers, both codeRabbit threads still unresolved at head and independently reproduced:
\\host Location bypasses the same-host check (security): is_relative_location rejects only forward-slash //; with url 2.5.8, Location: \\evil.example/path passes the predicate and Url::join resolves it to https://evil.example/path, so the loop re-sends the HEAD with the Authorization: Bearer header to a different origin. Fix: resolve the Location against the current URL and require identical scheme/host/port before following.
no_redirect_client drops the caller's transport settings (functional): the reachable acquire path supplies a hardened client (no_proxy, https_only, 30s timeouts) via HFClientBuilder::client(), which no_redirect_client ignores — metadata HEADs now run with system proxy honored and no timeout at all.
Also still unresolved: the doc-wording thread on SKIPPY_HF_HUB_OWNERSHIP.md ("retained under test configuration" now contradicts the production use added in the same sentence) — trivial, please address alongside.
Non-blocking note: wasm keeps the redirect-following client, so the original failure remains there for Xet files; upstream #212 additionally routes wasm through paths-info + revision lookup. Worth a follow-up sync if a wasm consumer of this API appears.
…r's transport
A `Location` such as `\evil.example/x` passed the relative check, and
Url::join resolved it to another host, which the HEAD would have reached
with the Hub token: the resolved URL must now keep the scheme, host and
port. A client supplied with `client()` never configured the no-redirect
one behind file metadata, so the acquisition path's no_proxy, https_only
and timeouts were lost there: `client_builder()` builds both from the same
settings, and acquisition uses it. is_relative_location is test-only again,
so the README and the ownership note are back to their wording.
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Approving at head 6b257c02 — this supersedes my earlier CHANGES_REQUESTED at 07d894df. Both blockers are fixed and verified at this head:
\\host Location bypass (security) — fixed in 3fe033a1. same_host_redirect now resolves the Location against the request URL and follows it only when the resolved URL's origin() (scheme, host, port) matches, so \\evil.example/path, //host/path, an http:// downgrade and a different port all stop before the HEAD leaves the Hub with the bearer token. only_a_same_origin_redirect_is_followed covers exactly those four plus the legitimate relative and absolute same-origin cases. Following an absolute same-origin redirect is a deliberate widening over the relative-only predicate and is safe under the same-origin rule the doc comment now states.
Transport settings dropped by the no-redirect client (functional) — fixed via HFClientBuilder::client_builder, from which both the redirect-following client and the no-redirect metadata client are built. Both reachable production callers migrated (competitive_acquisition::acquire::client keeps no_proxy/https_only/30 s timeouts on the metadata HEAD too; full_chain fixture likewise), and metadata_requests_keep_the_supplied_transport_settings proves the no-redirect client honors the supplied builder.
Also resolved: the doc contradiction (is_relative_location is back to #[cfg(test)], README and SKIPPY_HF_HUB_OWNERSHIP.md restored to test-only wording), and all five review threads are resolved with the fixes in this head. CI green at head across the Linux/Windows/quality suites.
Non-blocking follow-up noted before, unchanged: wasm keeps the redirect-following client, so Xet metadata there still misses the redirect; worth syncing with upstream's wasm routing if a wasm consumer of this API appears.
## Summary
This adds the Community Mesh plugin to Buzz: shared compute plus Mesh
helper agents. The plugin is on by default. Sharing your machine's
compute is opt-in. Signing keys stay in the host.
The goal is parity with block/buzz desktop. Anything more is a bonus.
Originating Buzz channel:
buzz://channel/53a55c4d-2b96-40b1-a6d4-8de855b2a328
<img width="341" height="340" alt="image"
src="https://github.com/user-attachments/assets/2804d969-8a78-4271-a449-7a5bfd518f98"
/>
<img width="326" height="304" alt="image"
src="https://github.com/user-attachments/assets/9c1bad6f-1a9d-407c-a57e-68a6408c582b"
/>
<img width="1132" height="742" alt="image"
src="https://github.com/user-attachments/assets/421fc20b-ce3f-42af-b89c-fc1a63596ce8"
/>
<img width="882" height="708" alt="image"
src="https://github.com/user-attachments/assets/9e3f58ff-45ba-4bea-96c7-098be325ebf7"
/>
## What's in it
- **Shared compute:** a Settings page, model controls, the floating
Compute widget, the native mesh lifecycle, and authenticated community
discovery.
- **Auto model pick:** the memory cap is ¼ of RAM. Discrete GPUs are
rated by their own VRAM. Auto picks the largest Gemma 4 that fits.
- **Mesh agent type:** runs on the app's bundled goose through the Goose
plugin (`meshGoose.ts`), pointed at the mesh lease route. There is no
second agent runtime.
- **Chat mode:** answers only, no tools.
- **Agent mode:** shell, skills and Buzz tools. The serving member's
model directs those tools on the owner's machine.
- Only the owner can trigger a turn. Messages from others can still
appear as context.
- **Windows:** the workspace path is resolved through `host.files`, with
no `pwd` or `base64`. The Media converter preset has Windows steps.
- Replaces #580 and includes #1237 (cross-node inference test).
## Build and trust model (same as block/buzz desktop)
- Mesh is compiled into every build, including release. There is no
cargo feature.
- The runtime is not bundled. The SDK downloads it from the Mesh-LLM
release and checks the manifest's SHA-256.
- The macOS `disable-library-validation` entitlement matches classic
Buzz.
- The owner key is mesh-llm's default keystore, the same one block/buzz
uses.
- Loopback ports 19337/13131 are the same defaults as block/buzz. They
can be overridden by env var.
- The Compute widget is an opaque window. Mesh does not enable Tauri
`unstable` or `macos-private-api`.
- `rusqlite` is 0.40 app-wide, forced by the SDK's log store.
## Dependencies
- The SDK is pinned to the 0.78.1 bridge revision
`5d19ca69403f5d3e46ddb82ce83164495fa88383`, including the virtual-chat
routing and peer-forwarding fixes. Swap it for an upstream release when
one includes both.
## Latest UI adjustments
- Activity values use the same body text size as the hardware value.
- Nested compute cards have smaller, proportional corners.
- The sharing switch inherits the standard theme colors; the local green
override is removed.
Focused component checks and design guards passed. The exact UI patch
was visually checked in the installed macOS Provider on its existing
source baseline; this does not replace packaged acceptance of the
complete current PR head.
## Open
- What to do when another mesh-llm already holds the ports: readiness
can adopt the other node's listener. We need a design that Jimmy signs
off on.
- Xet redirect (`missing X-Repo-Commit`) needs Mesh-LLM/mesh-llm#2579
plus an SDK `mesh-llm-hf-hub` bump.
- Slow agent turns on Windows/CUDA (about 4 tok/s vs 17 tok/s in chat)
haven't been measured yet.
- Packaged-app and human acceptance at the final head.
Draft. Detailed validation history is in the PR comments.
---------
Signed-off-by: Darioz <0c30d6330cb88c7b0519e2630b057ef0c584ad3f0be0157d9d2fdf0c913780bd@meshllm.communities.buzz.xyz>
Signed-off-by: Virgile-pct <[email protected]>
Signed-off-by: Thomas Petersen <[email protected]>
Signed-off-by: JimCodey <fab731feb32f528977dec0f8e40b557d552d1c795ae5c8d75e7dc071c2b05aa0@meshllm.communities.buzz.xyz>
Signed-off-by: Brody <0c30d6330cb88c7b0519e2630b057ef0c584ad3f0be0157d9d2fdf0c913780bd@meshllm.communities.buzz.xyz>
Signed-off-by: Jimmy <1fe240cd1a8cf775f6f3060f115e5a303181f3abf28ad4cb0c2515f4a02b36a8@meshllm.communities.buzz.xyz>
Signed-off-by: Codex <[email protected]>
Signed-off-by: Wario <dfbe041fec697424249363266ca53a7bdc62402afcd7ce994528f78720ae05b3@meshllm.communities.buzz.xyz>
Signed-off-by: Michael Neale <[email protected]>
Co-authored-by: Darioz <0c30d6330cb88c7b0519e2630b057ef0c584ad3f0be0157d9d2fdf0c913780bd@meshllm.communities.buzz.xyz>
Co-authored-by: Jimmy <1fe240cd1a8cf775f6f3060f115e5a303181f3abf28ad4cb0c2515f4a02b36a8@meshllm.communities.buzz.xyz>
Co-authored-by: Alessandro Joabar <[email protected]>
Co-authored-by: Thinker <75d8a808fa21bb8d1812e080cf471db601c6e8e6a62dcd516d37531e83a7bb77@meshllm.communities.buzz.xyz>
Co-authored-by: JimCodey <fab731feb32f528977dec0f8e40b557d552d1c795ae5c8d75e7dc071c2b05aa0@meshllm.communities.buzz.xyz>
Co-authored-by: DrCode <37819e35160e30daeb63700e9e6d660aff8e60a98807f0f50eb2611707e6e649@meshllm.communities.buzz.xyz>
Co-authored-by: Virgile-pct <[email protected]>
Co-authored-by: Thomas Petersen <[email protected]>
Co-authored-by: Claude Opus 5.5 <[email protected]>
Co-authored-by: scammed <02dea9c912230dcd8882fe78a4a16a51a3384898ca3166e23cd89fbd92d39ef6@meshllm.communities.buzz.xyz>
Co-authored-by: Michael Neale <[email protected]>
Co-authored-by: Michael Neale <[email protected]>
Co-authored-by: Codex <[email protected]>
Co-authored-by: Wario <dfbe041fec697424249363266ca53a7bdc62402afcd7ce994528f78720ae05b3@meshllm.communities.buzz.xyz>
Co-authored-by: Gu <28ffe54566d89ac40a9306adac7fdf81e713c2aa7c3bda4fd16977365f27c196@buzz.block.builderlab.xyz>
Co-authored-by: Deutsch <28ff7d62bb7dafcd3cda8a3291ca9096df9ed3176dcb810880d16224f71777a5@buzz.block.builderlab.xyz>
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Summary
HFRepository::get_file_metadatasends its HEAD with the client that follows redirects. For a Xet-backed file, the Hub'sresolveURL answers 302 to the Xet CDN, and only that 302 carriesX-Repo-Commit,X-Linked-ETagandX-Linked-Size. The CDN's 200 has none of them, so the call fails for every such file:download.rsalready sends the same HEAD withno_redirect_client()and reads the redirect. This does the same inget_file_metadata, the wayhuggingface_hub'sget_hf_file_metadatadoes it, and as upstream huggingface/hf-hub did in #212: same-origin redirects (a renamed repo,/api/resolve-cache/for small files) are followed, and the first redirect to another origin is where the metadata is read. A redirect is followed only when the resolved URL keeps the scheme, host and port of the request, since the HEAD carries the Hub token; aLocationsuch as\\host/pathreads as relative but resolves to another host, so the check is on the resolved URL. ItsLocation, resolved against the request, becomeslocation, which is the CDN URL, as it was when the redirect was followed. On wasm the default client stays, since that backend follows redirects itself.The no-redirect client used to be built with default transport settings even when the caller supplied its own client, so
client()never reached the metadata HEAD (or the cache download's).HFClientBuilder::client_builder()takes a function returning areqwest::ClientBuilderand builds both clients from it. Competitive acquisition (competitive_acquisition/acquire.rs), whose metadata HEAD this PR changes, now passes itsno_proxy,https_onlyand 30 s timeouts that way.Callers on main:
skippy-api's content-addressed source identity (hub_file_identityinsource/content_addressed.rs),skippy-model-package's competitive acquisition, and buckets.How it showed up
On a Windows run of block/buzz-app#941 (Mesh SDK 0.78.1 plus its routing patch), turning on shared compute never got past "waking", because the startup model never resolved. That error comes through
hub_file_identity:Nothing in it is Windows-specific. What the Hub returns today, with
curl -Iand no redirect followed:unsloth/Qwen3.5-9B-GGUFandunsloth/gemma-4-E4B-it-GGUFGGUFs:302 Foundtous.aws.cdn.hf.co/xet-bridge-us/..., withX-Repo-Commit,X-Linked-ETag,X-Linked-SizeandX-Xet-Hash. Following it, the CDN's200 OKhas noX-Repo-CommitorX-Linked-*header, and itsetagis the Xet hash, not the file's SHA-256 thatX-Linked-ETaggives.hub_file_identitytakes a 64-hex ETag as the file's SHA-256, so reading the CDN's answer would be wrong even where it didn't fail.README.mdof the Gemma repo:307 Temporary Redirectto/api/resolve-cache/..., withX-Repo-CommitandX-Linked-ETagbut noX-Linked-Size, and aContent-Length: 254for its own body. The target answers200withContent-Length: 28503. That's why same-host redirects are still followed.Testing
Windows 11:
get_file_metadata: on main both GGUFs fail with the error above andREADME.mdpasses. With this branch all three pass: Qwen3.5-9B Q4_K_M at commit3885219b, 5,680,522,464 bytes; gemma-4-E4B-it Q4_K_M at commitbfc15c38, 4,977,171,584 bytes;README.md28,503 bytes.listing.rs, against a local Hub:metadata_comes_from_the_hub_redirect_not_the_cdn_answer: a 302 to a CDN on another origin that has none of the headers. With the old client it fails (missing ETag header for model.gguf).a_same_host_redirect_is_followed_to_the_file: a relative 307 whose ownContent-Lengthis 254, to a 28,503-byte file.only_a_same_origin_redirect_is_followed: a relative and an absolute same-originLocationare followed;https://cdn-lfs.hf.co/x,//cdn-lfs.hf.co/x,\\evil.example/x, anhttp://downgrade and another port are not.metadata_requests_keep_the_supplied_transport_settings: withclient_builder(|| reqwest::Client::builder().https_only(true))the metadata HEAD to the plain-HTTP local Hub is refused. Passing the same settings throughclient()instead lets it through, which was the gap.cargo test -p skippy-hf-hub: 202 unit tests, 2 intests/future_size.rsand 21 doc tests passed.cargo test -p skippy-model-package --lib competitive_acquisition: 2 passed.cargo clippy -p skippy-hf-hub --lib --no-deps -- -D warnings: clean. With--all-targetsthe only warning is the existing unusedcreate_pointer_symlinkandread_commit_refsimport in thecache/storage.rstests, whose users are Unix-only; it is not touched here. Inskippy-model-packagethe remaining warnings on Windows are inlayer_jobandcompetitive_acquisition/tests.rs, neither touched here.cargo fmt --check: clean.Not run: a wasm build (no target installed here; the wasm branch only keeps the previous client), and an end-to-end model download through the SDK, which needs a release with this fix in the buzz-app#941 pin.
Summary by CodeRabbit