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Diffstat (limited to 'Documentation/git-init.txt')
| -rw-r--r-- | Documentation/git-init.txt | 158 |
1 files changed, 84 insertions, 74 deletions
diff --git a/Documentation/git-init.txt b/Documentation/git-init.txt index 246b07ebf9..9d27197de8 100644 --- a/Documentation/git-init.txt +++ b/Documentation/git-init.txt @@ -3,14 +3,38 @@ git-init(1) NAME ---- -git-init - Create an empty git repository or reinitialize an existing one +git-init - Create an empty Git repository or reinitialize an existing one SYNOPSIS -------- -'git init' [-q | --quiet] [--bare] [--template=<template_directory>] [--shared[=<permissions>]] [directory] +[verse] +'git init' [-q | --quiet] [--bare] [--template=<template_directory>] + [--separate-git-dir <git dir>] + [--shared[=<permissions>]] [directory] +DESCRIPTION +----------- + +This command creates an empty Git repository - basically a `.git` +directory with subdirectories for `objects`, `refs/heads`, +`refs/tags`, and template files. An initial `HEAD` file that +references the HEAD of the master branch is also created. + +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 `$GIT_DIR/objects` +directory is used. + +Running 'git init' in an existing repository is safe. It will not +overwrite things that are already there. The primary reason for +rerunning 'git init' is to pick up newly added templates (or to move +the repository to another place if --separate-git-dir is given). + OPTIONS ------- @@ -19,11 +43,11 @@ OPTIONS -q:: --quiet:: -Only print error and warning messages, all other output will be suppressed. +Only print error and warning messages; all other output will be suppressed. --bare:: -Create a bare repository. If GIT_DIR environment is not set, it is set to the +Create a bare repository. If `GIT_DIR` environment is not set, it is set to the current working directory. --template=<template_directory>:: @@ -31,74 +55,63 @@ current working directory. Specify the directory from which templates will be used. (See the "TEMPLATE DIRECTORY" section below.) ---shared[={false|true|umask|group|all|world|everybody|0xxx}]:: +--separate-git-dir=<git dir>:: -Specify that the git repository is to be shared amongst several users. This +Instead of initializing the repository as a directory to either `$GIT_DIR` or +`./.git/`, create a text file there containing the path to the actual +repository. This file acts as filesystem-agnostic Git symbolic link to the +repository. ++ +If this is reinitialization, the repository will be moved to the specified path. + +--shared[=(false|true|umask|group|all|world|everybody|0xxx)]:: + +Specify that the Git repository is to be shared amongst several users. This allows users belonging to the same group to push into that repository. When specified, the config variable "core.sharedRepository" is set so that files and directories under `$GIT_DIR` are created with the -requested permissions. When not specified, git will use permissions reported +requested permissions. When not specified, Git will use permissions reported by umask(2). - ++ The option can have the following values, defaulting to 'group' if no value is given: ++ +-- +'umask' (or 'false'):: - - 'umask' (or 'false'): Use permissions reported by umask(2). The default, - when `--shared` is not specified. +Use permissions reported by umask(2). The default, when `--shared` is not +specified. - - 'group' (or 'true'): Make the repository group-writable, (and g+sx, since - the git group may be not the primary group of all users). - This is used to loosen the permissions of an otherwise safe umask(2) value. - Note that the umask still applies to the other permission bits (e.g. if - umask is '0022', using 'group' will not remove read privileges from other - (non-group) users). See '0xxx' for how to exactly specify the repository - permissions. +'group' (or 'true'):: - - 'all' (or 'world' or 'everybody'): Same as 'group', but make the repository - readable by all users. +Make the repository group-writable, (and g+sx, since the git group may be not +the primary group of all users). This is used to loosen the permissions of an +otherwise safe umask(2) value. Note that the umask still applies to the other +permission bits (e.g. if umask is '0022', using 'group' will not remove read +privileges from other (non-group) users). See '0xxx' for how to exactly specify +the repository permissions. - - '0xxx': '0xxx' is an octal number and each file will have mode '0xxx'. - '0xxx' will override users' umask(2) value (and not only loosen permissions - as 'group' and 'all' does). '0640' will create a repository which is - group-readable, but not group-writable or accessible to others. '0660' will - create a repo that is readable and writable to the current user and group, - but inaccessible to others. +'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. +Same as 'group', but make the repository readable by all users. -If you name a (possibly non-existent) directory at the end of the command -line, the command is run inside the directory (possibly after creating it). +'0xxx':: +'0xxx' is an octal number and each file will have mode '0xxx'. '0xxx' will +override users' umask(2) value (and not only loosen permissions as 'group' and +'all' does). '0640' will create a repository which is group-readable, but not +group-writable or accessible to others. '0660' will create a repo that is +readable and writable to the current user and group, but inaccessible to others. -- +By default, the configuration flag `receive.denyNonFastForwards` is enabled +in shared repositories, so that you cannot force a non fast-forwarding push +into it. -DESCRIPTION ------------ -This command creates an empty git repository - basically a `.git` directory -with subdirectories for `objects`, `refs/heads`, `refs/tags`, and -template files. -An initial `HEAD` file that references the HEAD of the master branch -is also created. - -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. +If you provide a 'directory', the command is run inside it. If this directory +does not exist, it will be created. -Note that 'git init' is the same as 'git init-db'. The command -was primarily meant to initialize the object database, but over -time it has become responsible for setting up the other aspects -of the repository, such as installing the default hooks and -setting the configuration variables. The old name is retained -for backward compatibility reasons. +-- TEMPLATE DIRECTORY ------------------ @@ -106,42 +119,39 @@ TEMPLATE DIRECTORY The template directory contains files and directories that will be copied to the `$GIT_DIR` after it is created. -The template directory used will (in order): +The template directory will be one of the following (in order): + + - the argument given with the `--template` option; - - The argument given with the `--template` option. + - the contents of the `$GIT_TEMPLATE_DIR` environment variable; - - The contents of the `$GIT_TEMPLATE_DIR` environment variable. + - the `init.templateDir` configuration variable; or - - The `init.templatedir` configuration variable. + - the default template directory: `/usr/share/git-core/templates`. - - The default template directory: `/usr/share/git-core/templates`. +The default template directory includes some directory structure, suggested +"exclude patterns" (see linkgit:gitignore[5]), and sample hook files. -The default template directory includes some directory structure, some -suggested "exclude patterns", and copies of sample "hook" files. -The suggested patterns and hook files are all modifiable and extensible. +The sample hooks are all disabled by default, To enable one of the +sample hooks rename it by removing its `.sample` suffix. + +See linkgit:githooks[5] for more general info on hook execution. EXAMPLES -------- -Start a new git repository for an existing code base:: +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> prepare /path/to/my/codebase/.git directory -<2> add all existing file to the index - - -Author ------- -Written by Linus Torvalds <torvalds@osdl.org> - -Documentation --------------- -Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>. +<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. GIT --- |