patchdocs: link generating patch sections

From: John Cai <johncai86@gmail.com>

Currently, in the git-log documentation, the reference to generating patches does not match the section title. This can make the section "Generating patch text with -p" hard to find, since typically readers of the documentation will copy and paste to search the page.

Let's make this more convenient for readers by linking it directly to the section.

Since git-log pulls in diff-generate-patch.txt, we can provide a direct link to the section. Otherwise, change the verbiage to match exactly what the section title is, to at least make searching for it an easier task.

Signed-off-by: John Cai <johncai86@gmail.com>
---
    docs: link generating patch sections
    
    Currently, in the git-log documentation, the reference to generating
    patches does not match the section title. This can make the section
    "Generating patch text with -p" hard to find, since typically readers of
    the documentation will copy and paste to search the page.
    
    Let's make this more convenient for readers by linking it directly to
    the section.
    
    Signed-off-by: John Cai johncai86@gmail.com

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1392%2Fjohn-cai%2Fjc%2Fdoc-generate-patch-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1392/john-cai/jc/doc-generate-patch-v1
Pull-Request: https://github.com/git/git/pull/1392

 Documentation/diff-options.txt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

"John Cai via GitGitGadget" <gitgitgadget@gmail.com> writes:

Is this "prepend underscore, downcase, and replace each run of non-alnum with an underscore" ASCIIDoc magic? AsciiDoctor magic? All such backends prepare the anchor in the same format?

I am mostly worried about relying on automatic magic that can silently be broken when say the title in diff-generate-patch.txt file is improved. Whoever is updating the file would not know it is being referenced from elsewhere (and it is hard to check).

Or perhaps you forgot a single liner patch to diff-generate-patch.txt that adds [[_generating_patch_text_with_p]] anchor yourself?

The capitalization makes it look somewhat odd in the resulting text. Quoting, e.g.

	see the section titled "Generate patch text ..."

may make it acceptable, though.

Hi Junio

On 9 Dec 2022, at 19:29, Junio C Hamano wrote:

Yes, I believe this is asciidoc magic.

Good point, adding an explicit anchor makes sense.

yeah I agree here--I can adjust this in the next version

thanks John

From: John Cai <johncai86@gmail.com>

Currently, in the git-log documentation, the reference to generating patches does not match the section title. This can make the section "Generating patch text with -p" hard to find, since typically readers of the documentation will copy and paste to search the page.

Let's make this more convenient for readers by linking it directly to the section.

Since git-log pulls in diff-generate-patch.txt, we can provide a direct link to the section. Otherwise, change the verbiage to match exactly what the section title is, to at least make searching for it an easier task.

Signed-off-by: John Cai <johncai86@gmail.com>
---
    docs: link generating patch sections
    
    Currently, in the git-log documentation, the reference to generating
    patches does not match the section title. This can make the section
    "Generating patch text with -p" hard to find, since typically readers of
    the documentation will copy and paste to search the page.
    
    Let's make this more convenient for readers by linking it directly to
    the section.
    
    Since v1:
    
     * added explicit anchor for generating patch text section
     * adjusted verbiage to include quotations
    
    Signed-off-by: John Cai johncai86@gmail.com

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1392%2Fjohn-cai%2Fjc%2Fdoc-generate-patch-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1392/john-cai/jc/doc-generate-patch-v2
Pull-Request: https://github.com/git/git/pull/1392

Range-diff vs v1:

 1:  88e7e52fbc6 ! 1:  087f9b8d63a docs: link generating patch sections
     @@ Commit message
      
          Signed-off-by: John Cai <johncai86@gmail.com>
      
     + ## Documentation/diff-generate-patch.txt ##
     +@@
     ++[[generate_patch_text_with_p]]
     + Generating patch text with -p
     + -----------------------------
     + 
     +
       ## Documentation/diff-options.txt ##
      @@ Documentation/diff-options.txt: ifndef::git-format-patch[]
       -p::
       -u::
       --patch::
      -	Generate patch (see section on generating patches).
     -+	Generate patch (see section on
     ++	Generate patch (see section titled
      +ifdef::git-log[]
     -+<<_generating_patch_text_with_p, generating patches>>).
     ++<<generate_patch_text_with_p, "Generating patch text with -p">>).
      +endif::git-log[]
      +ifndef::git-log[]
     -+Generate patch text with -p).
     ++"Generating patch text with -p").
      +endif::git-log[]
       ifdef::git-diff[]
       	This is the default.

 Documentation/diff-generate-patch.txt | 1 +
 Documentation/diff-options.txt        | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)