revert(3p/git): Revert merge of git upstream at v2.26.2 r/852

This causes cgit to serve error pages, which is undesirable.

This reverts commit 5229c9b232de5bfa959ad6ebbb4c8192ac513352, reversing
changes made to f2b211131f2347342dde63975b09cf603149f1a3.

1 files changed, 9 insertions, 92 deletions

diff --git a/third_party/git/Documentation/MyFirstContribution.txt b/third_party/git/Documentation/MyFirstContribution.txt
index 427274df4d92..f8670379c0cf 100644
--- a/third_party/git/Documentation/MyFirstContribution.txt
+++ b/third_party/git/Documentation/MyFirstContribution.txt
@@ -23,42 +23,6 @@ useful additional context:
 - `Documentation/SubmittingPatches`
 - `Documentation/howto/new-command.txt`
 
-[[getting-help]]
-=== Getting Help
-
-If you get stuck, you can seek help in the following places.
-
-==== git@vger.kernel.org
-
-This is the main Git project mailing list where code reviews, version
-announcements, design discussions, and more take place. Those interested in
-contributing are welcome to post questions here. The Git list requires
-plain-text-only emails and prefers inline and bottom-posting when replying to
-mail; you will be CC'd in all replies to you. Optionally, you can subscribe to
-the list by sending an email to majordomo@vger.kernel.org with "subscribe git"
-in the body. The https://lore.kernel.org/git[archive] of this mailing list is
-available to view in a browser.
-
-==== https://groups.google.com/forum/#!forum/git-mentoring[git-mentoring@googlegroups.com]
-
-This mailing list is targeted to new contributors and was created as a place to
-post questions and receive answers outside of the public eye of the main list.
-Veteran contributors who are especially interested in helping mentor newcomers
-are present on the list. In order to avoid search indexers, group membership is
-required to view messages; anyone can join and no approval is required.
-
-==== https://webchat.freenode.net/#git-devel[#git-devel] on Freenode
-
-This IRC channel is for conversations between Git contributors. If someone is
-currently online and knows the answer to your question, you can receive help
-in real time. Otherwise, you can read the
-https://colabti.org/irclogger/irclogger_logs/git-devel[scrollback] to see
-whether someone answered you. IRC does not allow offline private messaging, so
-if you try to private message someone and then log out of IRC, they cannot
-respond to you. It's better to ask your questions in the channel so that you
-can be answered if you disconnect and so that others can learn from the
-conversation.
-
 [[getting-started]]
 == Getting Started
 
@@ -74,26 +38,6 @@ $ git clone https://github.com/git/git git
 $ cd git
 ----
 
-[[dependencies]]
-=== Installing Dependencies
-
-To build Git from source, you need to have a handful of dependencies installed
-on your system. For a hint of what's needed, you can take a look at
-`INSTALL`, paying close attention to the section about Git's dependencies on
-external programs and libraries. That document mentions a way to "test-drive"
-our freshly built Git without installing; that's the method we'll be using in
-this tutorial.
-
-Make sure that your environment has everything you need by building your brand
-new clone of Git from the above step:
-
-----
-$ make
-----
-
-NOTE: The Git build is parallelizable. `-j#` is not included above but you can
-use it as you prefer, here and elsewhere.
-
 [[identify-problem]]
 === Identify Problem to Solve
 
@@ -153,8 +97,8 @@ int cmd_psuh(int argc, const char **argv, const char *prefix)
 ----
 
 We'll also need to add the declaration of psuh; open up `builtin.h`, find the
-declaration for `cmd_pull`, and add a new line for `psuh` immediately before it,
-in order to keep the declarations alphabetically sorted:
+declaration for `cmd_push`, and add a new line for `psuh` immediately before it,
+in order to keep the declarations sorted:
 
 ----
 int cmd_psuh(int argc, const char **argv, const char *prefix);
@@ -179,7 +123,7 @@ int cmd_psuh(int argc, const char **argv, const char *prefix)
 }
 ----
 
-Let's try to build it.  Open `Makefile`, find where `builtin/pull.o` is added
+Let's try to build it.  Open `Makefile`, find where `builtin/push.o` is added
 to `BUILTIN_OBJS`, and add `builtin/psuh.o` in the same way next to it in
 alphabetical order. Once you've done so, move to the top-level directory and
 build simply with `make`. Also add the `DEVELOPER=1` variable to turn on
@@ -194,6 +138,9 @@ NOTE: When you are developing the Git project, it's preferred that you use the
 `DEVELOPER` flag; if there's some reason it doesn't work for you, you can turn
 it off, but it's a good idea to mention the problem to the mailing list.
 
+NOTE: The Git build is parallelizable. `-j#` is not included above but you can
+use it as you prefer, here and elsewhere.
+
 Great, now your new command builds happily on its own. But nobody invokes it.
 Let's change that.
 
@@ -202,7 +149,7 @@ a `cmd_struct` to the `commands[]` array. `struct cmd_struct` takes a string
 with the command name, a function pointer to the command implementation, and a
 setup option flag. For now, let's keep mimicking `push`. Find the line where
 `cmd_push` is registered, copy it, and modify it for `cmd_psuh`, placing the new
-line in alphabetical order (immediately before `cmd_pull`).
+line in alphabetical order.
 
 The options are documented in `builtin.h` under "Adding a new built-in." Since
 we hope to print some data about the user's current workspace context later,
@@ -220,7 +167,7 @@ Check it out! You've got a command! Nice work! Let's commit this.
 
 `git status` reveals modified `Makefile`, `builtin.h`, and `git.c` as well as
 untracked `builtin/psuh.c` and `git-psuh`. First, let's take care of the binary,
-which should be ignored. Open `.gitignore` in your editor, find `/git-pull`, and
+which should be ignored. Open `.gitignore` in your editor, find `/git-push`, and
 add an entry for your new command in alphabetical order:
 
 ----
@@ -587,28 +534,6 @@ you want to pass as a parameter something which would usually be interpreted as
 a flag.) `parse_options()` will terminate parsing when it reaches `--` and give
 you the rest of the options afterwards, untouched.
 
-Now that you have a usage hint, you can teach Git how to show it in the general
-command list shown by `git help git` or `git help -a`, which is generated from
-`command-list.txt`. Find the line for 'git-pull' so you can add your 'git-psuh'
-line above it in alphabetical order. Now, we can add some attributes about the
-command which impacts where it shows up in the aforementioned help commands. The
-top of `command-list.txt` shares some information about what each attribute
-means; in those help pages, the commands are sorted according to these
-attributes. `git psuh` is user-facing, or porcelain - so we will mark it as
-"mainporcelain". For "mainporcelain" commands, the comments at the top of
-`command-list.txt` indicate we can also optionally add an attribute from another
-list; since `git psuh` shows some information about the user's workspace but
-doesn't modify anything, let's mark it as "info". Make sure to keep your
-attributes in the same style as the rest of `command-list.txt` using spaces to
-align and delineate them:
-
-----
-git-prune-packed                        plumbingmanipulators
-git-psuh                                mainporcelain		info
-git-pull                                mainporcelain           remote
-git-push                                mainporcelain           remote
-----
-
 Build again. Now, when you run with `-h`, you should see your usage printed and
 your command terminated before anything else interesting happens. Great!
 
@@ -821,14 +746,6 @@ will automatically run your PRs through the CI even without the permission given
 but you will not be able to `/submit` your changes until someone allows you to
 use the tool.
 
-NOTE: You can typically find someone who can `/allow` you on GitGitGadget by
-either examining recent pull requests where someone has been granted `/allow`
-(https://github.com/gitgitgadget/git/pulls?utf8=%E2%9C%93&q=is%3Apr+is%3Aopen+%22%2Fallow%22[Search:
-is:pr is:open "/allow"]), in which case both the author and the person who
-granted the `/allow` can now `/allow` you, or by inquiring on the
-https://webchat.freenode.net/#git-devel[#git-devel] IRC channel on Freenode
-linking your pull request and asking for someone to `/allow` you.
-
 If the CI fails, you can update your changes with `git rebase -i` and push your
 branch again:
 
@@ -1053,7 +970,7 @@ reviewers the changes you've made that may not be as visible.
 You will also need to go and find the Message-Id of your previous cover letter.
 You can either note it when you send the first series, from the output of `git
 send-email`, or you can look it up on the
-https://lore.kernel.org/git[mailing list]. Find your cover letter in the
+https://public-inbox.org/git[mailing list]. Find your cover letter in the
 archives, click on it, then click "permalink" or "raw" to reveal the Message-Id
 header. It should match: