7b5c93c6c6
Move 'scalar' out of 'contrib/' and into the root of the Git tree. The goal
of this change is to build 'scalar' as part of the standard Git build &
install processes.
This patch includes both the physical move of Scalar's files out of
'contrib/' ('scalar.c', 'scalar.txt', and 't9xxx-scalar.sh'), and the
changes to the build definitions in 'Makefile' and 'CMakelists.txt' to
accommodate the new program.
At a high level, Scalar is built so that:
- there is a 'scalar-objs' target (similar to those created in 029bac01a8
(Makefile: add {program,xdiff,test,git,fuzz}-objs & objects targets,
2021-02-23)) for debugging purposes.
- it appears in the root of the install directory (rather than the
gitexecdir).
- it is included in the 'bin-wrappers/' directory for use in tests.
- it receives a platform-specific executable suffix (e.g., '.exe'), if
applicable.
- 'scalar.txt' is installed as 'man1' documentation.
- the 'clean' target removes the 'scalar' executable.
Additionally, update the root level '.gitignore' file to ignore the Scalar
executable.
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
167 lines
5.7 KiB
Plaintext
167 lines
5.7 KiB
Plaintext
scalar(1)
|
|
=========
|
|
|
|
NAME
|
|
----
|
|
scalar - A tool for managing large Git repositories
|
|
|
|
SYNOPSIS
|
|
--------
|
|
[verse]
|
|
scalar clone [--single-branch] [--branch <main-branch>] [--full-clone] <url> [<enlistment>]
|
|
scalar list
|
|
scalar register [<enlistment>]
|
|
scalar unregister [<enlistment>]
|
|
scalar run ( all | config | commit-graph | fetch | loose-objects | pack-files ) [<enlistment>]
|
|
scalar reconfigure [ --all | <enlistment> ]
|
|
scalar diagnose [<enlistment>]
|
|
scalar delete <enlistment>
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
|
|
Scalar is a repository management tool that optimizes Git for use in large
|
|
repositories. Scalar improves performance by configuring advanced Git settings,
|
|
maintaining repositories in the background, and helping to reduce data sent
|
|
across the network.
|
|
|
|
An important Scalar concept is the enlistment: this is the top-level directory
|
|
of the project. It usually contains the subdirectory `src/` which is a Git
|
|
worktree. This encourages the separation between tracked files (inside `src/`)
|
|
and untracked files, such as build artifacts (outside `src/`). When registering
|
|
an existing Git worktree with Scalar whose name is not `src`, the enlistment
|
|
will be identical to the worktree.
|
|
|
|
The `scalar` command implements various subcommands, and different options
|
|
depending on the subcommand. With the exception of `clone`, `list` and
|
|
`reconfigure --all`, all subcommands expect to be run in an enlistment.
|
|
|
|
The following options can be specified _before_ the subcommand:
|
|
|
|
-C <directory>::
|
|
Before running the subcommand, change the working directory. This
|
|
option imitates the same option of linkgit:git[1].
|
|
|
|
-c <key>=<value>::
|
|
For the duration of running the specified subcommand, configure this
|
|
setting. This option imitates the same option of linkgit:git[1].
|
|
|
|
COMMANDS
|
|
--------
|
|
|
|
Clone
|
|
~~~~~
|
|
|
|
clone [<options>] <url> [<enlistment>]::
|
|
Clones the specified repository, similar to linkgit:git-clone[1]. By
|
|
default, only commit and tree objects are cloned. Once finished, the
|
|
worktree is located at `<enlistment>/src`.
|
|
+
|
|
The sparse-checkout feature is enabled (except when run with `--full-clone`)
|
|
and the only files present are those in the top-level directory. Use
|
|
`git sparse-checkout set` to expand the set of directories you want to see,
|
|
or `git sparse-checkout disable` to expand to all files (see
|
|
linkgit:git-sparse-checkout[1] for more details). You can explore the
|
|
subdirectories outside your sparse-checkout by using `git ls-tree
|
|
HEAD[:<directory>]`.
|
|
|
|
-b <name>::
|
|
--branch <name>::
|
|
Instead of checking out the branch pointed to by the cloned
|
|
repository's HEAD, check out the `<name>` branch instead.
|
|
|
|
--[no-]single-branch::
|
|
Clone only the history leading to the tip of a single branch, either
|
|
specified by the `--branch` option or the primary branch remote's
|
|
`HEAD` points at.
|
|
+
|
|
Further fetches into the resulting repository will only update the
|
|
remote-tracking branch for the branch this option was used for the initial
|
|
cloning. If the HEAD at the remote did not point at any branch when
|
|
`--single-branch` clone was made, no remote-tracking branch is created.
|
|
|
|
--[no-]full-clone::
|
|
A sparse-checkout is initialized by default. This behavior can be
|
|
turned off via `--full-clone`.
|
|
|
|
List
|
|
~~~~
|
|
|
|
list::
|
|
List enlistments that are currently registered by Scalar. This
|
|
subcommand does not need to be run inside an enlistment.
|
|
|
|
Register
|
|
~~~~~~~~
|
|
|
|
register [<enlistment>]::
|
|
Adds the enlistment's repository to the list of registered repositories
|
|
and starts background maintenance. If `<enlistment>` is not provided,
|
|
then the enlistment associated with the current working directory is
|
|
registered.
|
|
+
|
|
Note: when this subcommand is called in a worktree that is called `src/`, its
|
|
parent directory is considered to be the Scalar enlistment. If the worktree is
|
|
_not_ called `src/`, it itself will be considered to be the Scalar enlistment.
|
|
|
|
Unregister
|
|
~~~~~~~~~~
|
|
|
|
unregister [<enlistment>]::
|
|
Remove the specified repository from the list of repositories
|
|
registered with Scalar and stop the scheduled background maintenance.
|
|
|
|
Run
|
|
~~~
|
|
|
|
scalar run ( all | config | commit-graph | fetch | loose-objects | pack-files ) [<enlistment>]::
|
|
Run the given maintenance task (or all tasks, if `all` was specified).
|
|
Except for `all` and `config`, this subcommand simply hands off to
|
|
linkgit:git-maintenance[1] (mapping `fetch` to `prefetch` and
|
|
`pack-files` to `incremental-repack`).
|
|
+
|
|
These tasks are run automatically as part of the scheduled maintenance,
|
|
as soon as the repository is registered with Scalar. It should therefore
|
|
not be necessary to run this subcommand manually.
|
|
+
|
|
The `config` task is specific to Scalar and configures all those
|
|
opinionated default settings that make Git work more efficiently with
|
|
large repositories. As this task is run as part of `scalar clone`
|
|
automatically, explicit invocations of this task are rarely needed.
|
|
|
|
Reconfigure
|
|
~~~~~~~~~~~
|
|
|
|
After a Scalar upgrade, or when the configuration of a Scalar enlistment
|
|
was somehow corrupted or changed by mistake, this subcommand allows to
|
|
reconfigure the enlistment.
|
|
|
|
With the `--all` option, all enlistments currently registered with Scalar
|
|
will be reconfigured. Use this option after each Scalar upgrade.
|
|
|
|
Diagnose
|
|
~~~~~~~~
|
|
|
|
diagnose [<enlistment>]::
|
|
When reporting issues with Scalar, it is often helpful to provide the
|
|
information gathered by this command, including logs and certain
|
|
statistics describing the data shape of the current enlistment.
|
|
+
|
|
The output of this command is a `.zip` file that is written into
|
|
a directory adjacent to the worktree in the `src` directory.
|
|
|
|
Delete
|
|
~~~~~~
|
|
|
|
delete <enlistment>::
|
|
This subcommand lets you delete an existing Scalar enlistment from your
|
|
local file system, unregistering the repository.
|
|
|
|
SEE ALSO
|
|
--------
|
|
linkgit:git-clone[1], linkgit:git-maintenance[1].
|
|
|
|
GIT
|
|
---
|
|
Part of the linkgit:git[1] suite
|