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List:       git
Subject:    [PATCH 2/3] fetch: document the --negotiate-only option
From:       Ævar Arnfjörð Bjarmason  <avarab () gmail ! com>
Date:       2021-06-30 16:38:11
Message-ID: patch-2.3-7ff734ed70a-20210630T163329Z-avarab () gmail ! com
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There was no documentation for the --negotiate-only option added in
9c1e657a8fd (fetch: teach independent negotiation (no packfile),
2021-05-04), only documentation for the related push.negotiation
option added in the following commit in 477673d6f39 (send-pack:
support push negotiation, 2021-05-04).

Let's document it, and update the cross-linking I'd added between
--negotiation-tip=* and 'fetch.negotiationAlgorithm' in
526608284a7 (fetch doc: cross-link two new negotiation options,
2018-08-01).

I think it would be better to say "in common with the remote" here
than "...the server", but the documentation for --negotiation-tip=*
above this talks about "the server", so let's continue doing that in
this related option. See 3390e42adb3 (fetch-pack: support negotiation
tip whitelist, 2018-07-02) for that documentation.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 Documentation/config/fetch.txt  |  3 ++-
 Documentation/fetch-options.txt | 13 +++++++++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/Documentation/config/fetch.txt b/Documentation/config/fetch.txt
index 6af6f5edb27..63748c02b72 100644
--- a/Documentation/config/fetch.txt
+++ b/Documentation/config/fetch.txt
@@ -69,7 +69,8 @@ fetch.negotiationAlgorithm::
 	setting defaults to "skipping".
 	Unknown values will cause 'git fetch' to error out.
 +
-See also the `--negotiation-tip` option for linkgit:git-fetch[1].
+See also the `--negotiate-only` and `--negotiation-tip` options to
+linkgit:git-fetch[1].
 
 fetch.showForcedUpdates::
 	Set to false to enable `--no-show-forced-updates` in
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt
index 9e7b4e189ce..e967ff1874c 100644
--- a/Documentation/fetch-options.txt
+++ b/Documentation/fetch-options.txt
@@ -62,8 +62,17 @@ The argument to this option may be a glob on ref names, a ref, or the (possibly
 abbreviated) SHA-1 of a commit. Specifying a glob is equivalent to specifying
 this option multiple times, one for each matching ref name.
 +
-See also the `fetch.negotiationAlgorithm` configuration variable
-documented in linkgit:git-config[1].
+See also the `fetch.negotiationAlgorithm` and `push.negotiate`
+configuration variables documented in linkgit:git-config[1], and the
+`--negotiate-only` option below.
+
+--negotiate-only::
+	Do not fetch anything from the server, and instead print the
+	ancestors of the provided `--negotiation-tip=*` arguments,
+	which we have in common with the server.
++
+Internally this is used to implement the `push.negotiate` option, see
+linkgit:git-config[1].
 
 --dry-run::
 	Show what would be done, without making any changes.
-- 
2.32.0.619.g53a98c35da0

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