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documentation: add missing word "ref"

PATCH In review Monika Kairaitytė via GitGitGadget 3 participants 3 messages Sep 29, 2024 – Oct 9, 2024 Documentation

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PATCH 1/1 documentation: add missing word "ref"

From: Monika Kairaityte <[email protected]>

In the git-fetch documentation, description of <refspec> syntax is not entirely clear. When explaining about "the destination ref <dst>", word "ref" is included. Logically, it should be the same in the explanation of "the source <src>".

---
documentation: add missing word "ref"

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1803%2Fmokibit%2Fdocs-add-missing-ref-word-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1803/mokibit/docs-add-missing-ref-word-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/1803

 Documentation/pull-fetch-param.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
Documentation/pull-fetch-param.txt +1 -1
index c718f7946f0..066a35af9cd 100644
@@ -24,7 +24,7 @@ ifdef::git-pull[]
 endif::git-pull[]
 +
 The format of a <refspec> parameter is an optional plus
-`+`, followed by the source <src>, followed
+`+`, followed by the source ref <src>, followed
 by a colon `:`, followed by the destination ref <dst>.
 The colon can be omitted when <dst> is empty.  <src> is
 typically a ref, but it can also be a fully spelled hex object

base-commit: 3857aae53f3633b7de63ad640737c657387ae0c6

Signature · 1 line
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#1 lore raw

"Monika Kairaitytė via GitGitGadget" <[email protected]>

Quoted 3 lines · writes:

When explaining about "the destination ref <dst>", word "ref" is included. Logically, it should be the same in the explanation of "the source <src>".

"Logically", if <src> and <dst> followed the same rules, but otherwise, it is not a logical conclusion.

What makes me hesitate with this change is the following.

- In "+refs/heads/*:refs/remotes/origin/*", <src> is "refs/heads/*" and <dst> is "refs/tags/*". Neither is a ref. So it could be argued that saying "ref" before <dst> is what is wrong in the current text, and adding "ref" before <src> makes it doubly wrong.

- In addition, <src> can be a fully spelled object name, to fetch just a single object. In such a case, it does not even remotely resemble a ref.

How about this text instead? Would it solve the problem, i.e.

Quoted 2 lines

In the git-fetch documentation, description of <refspec> syntax is not entirely clear.

Thanks.

------- >8 -------
Subject: doc: clarify <src> in refspec syntax

We explicitly avoid saying "ref <src>" when introducing the source side of a refspec, because it can be a fully-spelled hexadecimal object name, and it also can be a pattern that is not quite a "ref".

But we are loose when we introduce <dst> and say "ref <dst>", even though it can also be a pattern. Let's omit "ref" also from the destination side.

Clarify that <src> can be a ref, a (limited glob) pattern, or an object name.

Even though the very original design of refspec expected that '*' was used only at the end (e.g., "refs/heads/*" was expected, but not "refs/heads/*-wip"), the code and its use evolved to handle a single '*' anywhere in the pattern. Update the text to remove the mention of "the same prefix". Anything that matches the pattern are named by such a (limited glob) pattern in <src>.

Also put a bit more stress on the fact that we accept only one '*' in the pattern by saying "one and only one *".

---
 Documentation/pull-fetch-param.txt | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
Documentation/pull-fetch-param.txt +4 -3
index c718f7946f..d79d2f6065 100644
@@ -25,14 +25,15 @@ endif::git-pull[]
 +
 The format of a <refspec> parameter is an optional plus
 `+`, followed by the source <src>, followed
-by a colon `:`, followed by the destination ref <dst>.
+by a colon `:`, followed by the destination <dst>.
 The colon can be omitted when <dst> is empty.  <src> is
-typically a ref, but it can also be a fully spelled hex object
+typically a ref, or a glob pattern with a single `*` that is used
+to match a set of refs, but it can also be a fully spelled hex object
 name.
 +
 A <refspec> may contain a `*` in its <src> to indicate a simple pattern
 match. Such a refspec functions like a glob that matches any ref with the
-same prefix. A pattern <refspec> must have a `*` in both the <src> and
+pattern. A pattern <refspec> must have one and only one `*` in both the <src> and
 <dst>. It will map refs to the destination by replacing the `*` with the
 contents matched from the source.
 +
#2 lore raw

Sorry for late response, it took a while to figure out replies to mailing list.

Thanks for review and suggested changes. I agree that it looks better.

Cheers,
Monika