Mercurial > hg-stable
view mercurial/help/bundlespec.txt @ 38461:11eda1f1b6e7
packaging: consistently create build user in Dockerfiles
Previously, dockerlib.sh appended some commands to create a
"build" user in each Docker image. The resulting Docker images
could be inconsistent depending on the execution environment
and base image.
With this change, we explicitly create our custom user and
group as the first action in each Dockerfile. The user always
has user:group 1000:1000 and all built images are consistent.
We also create a home directory for the user under /build.
This directory is currently ignored.
As part of this, we stop setting the DBUILDUSER variable in
dockerlib.sh and instead set it in the respective scripts that
call it. This is in preparation for further refactoring of
dockerlib.sh.
Differential Revision: https://phab.mercurial-scm.org/D3758
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sat, 12 May 2018 15:51:37 -0700 |
parents | 01280ec5f840 |
children |
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Mercurial supports generating standalone "bundle" files that hold repository data. These "bundles" are typically saved locally and used later or exchanged between different repositories, possibly on different machines. Example commands using bundles are :hg:`bundle` and :hg:`unbundle`. Generation of bundle files is controlled by a "bundle specification" ("bundlespec") string. This string tells the bundle generation process how to create the bundle. A "bundlespec" string is composed of the following elements: type A string denoting the bundle format to use. compression Denotes the compression engine to use compressing the raw bundle data. parameters Arbitrary key-value parameters to further control bundle generation. A "bundlespec" string has the following formats: <type> The literal bundle format string is used. <compression>-<type> The compression engine and format are delimited by a hyphen (``-``). Optional parameters follow the ``<type>``. Parameters are URI escaped ``key=value`` pairs. Each pair is delimited by a semicolon (``;``). The first parameter begins after a ``;`` immediately following the ``<type>`` value. Available Types =============== The following bundle <type> strings are available: v1 Produces a legacy "changegroup" version 1 bundle. This format is compatible with nearly all Mercurial clients because it is the oldest. However, it has some limitations, which is why it is no longer the default for new repositories. ``v1`` bundles can be used with modern repositories using the "generaldelta" storage format. However, it may take longer to produce the bundle and the resulting bundle may be significantly larger than a ``v2`` bundle. ``v1`` bundles can only use the ``gzip``, ``bzip2``, and ``none`` compression formats. v2 Produces a version 2 bundle. Version 2 bundles are an extensible format that can store additional repository data (such as bookmarks and phases information) and they can store data more efficiently, resulting in smaller bundles. Version 2 bundles can also use modern compression engines, such as ``zstd``, making them faster to compress and often smaller. Available Compression Engines ============================= The following bundle <compression> engines can be used: .. bundlecompressionmarker Examples ======== ``v2`` Produce a ``v2`` bundle using default options, including compression. ``none-v1`` Produce a ``v1`` bundle with no compression. ``zstd-v2`` Produce a ``v2`` bundle with zstandard compression using default settings. ``zstd-v1`` This errors because ``zstd`` is not supported for ``v1`` types.