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-rw-r--r--Documentation/technical/api-builtin.txt23
1 files changed, 14 insertions, 9 deletions
diff --git a/Documentation/technical/api-builtin.txt b/Documentation/technical/api-builtin.txt
index 7ede1e64e5..22a39b9299 100644
--- a/Documentation/technical/api-builtin.txt
+++ b/Documentation/technical/api-builtin.txt
@@ -5,7 +5,7 @@ Adding a new built-in
---------------------
There are 4 things to do to add a built-in command implementation to
-git:
+Git:
. Define the implementation of the built-in command `foo` with
signature:
@@ -14,19 +14,22 @@ git:
. Add the external declaration for the function to `builtin.h`.
-. Add the command to `commands[]` table in `handle_internal_command()`,
- defined in `git.c`. The entry should look like:
+. Add the command to the `commands[]` table defined in `git.c`.
+ The entry should look like:
{ "foo", cmd_foo, <options> },
+
where options is the bitwise-or of:
`RUN_SETUP`::
+ If there is not a Git directory to work on, abort. If there
+ is a work tree, chdir to the top of it if the command was
+ invoked in a subdirectory. If there is no work tree, no
+ chdir() is done.
- Make sure there is a git directory to work on, and if there is a
- work tree, chdir to the top of it if the command was invoked
- in a subdirectory. If there is no work tree, no chdir() is
- done.
+`RUN_SETUP_GENTLY`::
+ If there is a Git directory, chdir as per RUN_SETUP, otherwise,
+ don't chdir anywhere.
`USE_PAGER`::
@@ -37,9 +40,9 @@ where options is the bitwise-or of:
Make sure there is a work tree, i.e. the command cannot act
on bare repositories.
- This makes only sense when `RUN_SETUP` is also set.
+ This only makes sense when `RUN_SETUP` is also set.
-. Add `builtin-foo.o` to `BUILTIN_OBJS` in `Makefile`.
+. Add `builtin/foo.o` to `BUILTIN_OBJS` in `Makefile`.
Additionally, if `foo` is a new command, there are 3 more things to do:
@@ -49,6 +52,8 @@ Additionally, if `foo` is a new command, there are 3 more things to do:
. Add an entry for `git-foo` to `command-list.txt`.
+. Add an entry for `/git-foo` to `.gitignore`.
+
How a built-in is called
------------------------