From ef2f1845ec4b683df791bfd956f551b096a38009 Mon Sep 17 00:00:00 2001 From: Christian Couder Date: Mon, 16 Feb 2026 14:23:15 +0100 Subject: fetch-pack: wire up and enable auto filter logic Previous commits have set up an infrastructure for `--filter=auto` to automatically prepare a partial clone filter based on what the server advertised and the client accepted. Using that infrastructure, let's now enable the `--filter=auto` option in `git clone` and `git fetch` by setting `allow_auto_filter` to 1. Note that these small changes mean that when `git clone --filter=auto` or `git fetch --filter=auto` are used, "auto" is automatically saved as the partial clone filter for the server on the client. Therefore subsequent calls to `git fetch` on the client will automatically use this "auto" mode even without `--filter=auto`. Let's also set `allow_auto_filter` to 1 in `transport.c`, as the transport layer must be able to accept the "auto" filter spec even if the invoking command hasn't fully parsed it yet. When an "auto" filter is requested, let's have the "fetch-pack.c" code in `do_fetch_pack_v2()` compute a filter and send it to the server. In `do_fetch_pack_v2()` the logic also needs to check for the "promisor-remote" capability and call `promisor_remote_reply()` to parse advertised remotes and populate the list of those accepted (and their filters). Signed-off-by: Christian Couder Signed-off-by: Junio C Hamano --- Documentation/fetch-options.adoc | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) (limited to 'Documentation/fetch-options.adoc') diff --git a/Documentation/fetch-options.adoc b/Documentation/fetch-options.adoc index 1ef9807d00..a0cfb50d89 100644 --- a/Documentation/fetch-options.adoc +++ b/Documentation/fetch-options.adoc @@ -92,11 +92,20 @@ precedence over the `fetch.output` config option. Use the partial clone feature and request that the server sends a subset of reachable objects according to a given object filter. When using `--filter`, the supplied __ is used for - the partial fetch. For example, `--filter=blob:none` will filter - out all blobs (file contents) until needed by Git. Also, - `--filter=blob:limit=` will filter out all blobs of size - at least __. For more details on filter specifications, see - the `--filter` option in linkgit:git-rev-list[1]. + the partial fetch. ++ +If `--filter=auto` is used, the filter specification is determined +automatically by combining the filter specifications advertised by +the server for the promisor remotes that the client accepts (see +linkgit:gitprotocol-v2[5] and the `promisor.acceptFromServer` +configuration option in linkgit:git-config[1]). ++ +For details on all other available filter specifications, see the +`--filter=` option in linkgit:git-rev-list[1]. ++ +For example, `--filter=blob:none` will filter out all blobs (file +contents) until needed by Git. Also, `--filter=blob:limit=` will +filter out all blobs of size at least __. ifndef::git-pull[] `--write-fetch-head`:: -- cgit v1.3