git-init - Create an empty Git repository or reinitialize an existing one
git init [-q | --quiet] [--bare] [--template=<template_directory>]
[--separate-git-dir <git dir>] [--object-format=<format>]
[-b <branch-name> | --initial-branch=<branch-name>]
This command creates an empty Git repository - basically a .git directory with subdirectories for objects, refs/heads, refs/tags, and template files. An initial branch without any commits will be created (see the --initial-branch option below for its name).
If the $GIT_DIR environment variable is set then it specifies a path to use instead of ./.git for the base of the repository.
If the object storage directory is specified via the $GIT_OBJECT_DIRECTORY environment variable then the sha1 directories are created underneath - otherwise the default $GIT_DIR/objects directory is used.
Running git init in an existing repository is safe. It will not overwrite things that are already there. The primary reason for rerunning git init is to pick up newly added templates (or to move the repository to another place if --separate-git-dir is given).
THIS OPTION IS EXPERIMENTAL! SHA-256 support is experimental and still in an early stage. A SHA-256 repository will in general not be able to share work with "regular" SHA-1 repositories. It should be assumed that, e.g., Git internal file formats in relation to SHA-256 repositories may change in backwards-incompatible ways. Only use --object-format=sha256 for testing purposes.
If this is reinitialization, the repository will be moved to the specified path.
-b <branch-name>, --initial-branch=<branch-name>
The option can have the following values, defaulting to group if no value is given:
umask (or false)
group (or true)
all (or world or everybody)
By default, the configuration flag receive.denyNonFastForwards is enabled in shared repositories, so that you cannot force a non fast-forwarding push into it.
If you provide a directory, the command is run inside it. If this directory does not exist, it will be created.
Files and directories in the template directory whose name do not start with a dot will be copied to the $GIT_DIR after it is created.
The template directory will be one of the following (in order):
The default template directory includes some directory structure, suggested "exclude patterns" (see gitignore(5)), and sample hook files.
The sample hooks are all disabled by default. To enable one of the sample hooks rename it by removing its .sample suffix.
See githooks(5) for more general info on hook execution.
Start a new Git repository for an existing code base
$ cd /path/to/my/codebase $ git init (1) $ git add . (2) $ git commit (3)
1. Create a /path/to/my/codebase/.git directory.
2. Add all existing files to the index.
3. Record the pristine state as the first commit in the history.
Part of the git(1) suite