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This introduces `git survey` to Git for Windows ahead of upstream for the express purpose of getting the path-based analysis in the hands of more folks. The inspiration of this builtin is [`git-sizer`](https://github.com/github/git-sizer), but since that command relies on `git cat-file --batch` to get the contents of objects, it has limits to how much information it can provide. This is mostly a rewrite of the `git survey` builtin that was introduced into the `microsoft/git` fork in microsoft/git#667. That version had a lot more bells and whistles, including an analysis much closer to what `git-sizer` provides. The biggest difference in this version is that this one is focused on using the path-walk API in order to visit batches of objects based on a common path. This allows identifying, for instance, the path that is contributing the most to the on-disk size across all versions at that path. For example, here are the top ten paths contributing to my local Git repository (which includes `microsoft/git` and `gitster/git`): ``` TOP FILES BY DISK SIZE ============================================================================ Path | Count | Disk Size | Inflated Size -----------------------------------------+-------+-----------+-------------- whats-cooking.txt | 1373 | 11637459 | 37226854 t/helper/test-gvfs-protocol | 2 | 6847105 | 17233072 git-rebase--helper | 1 | 6027849 | 15269664 compat/mingw.c | 6111 | 5194453 | 463466970 t/helper/test-parse-options | 1 | 3420385 | 8807968 t/helper/test-pkt-line | 1 | 3408661 | 8778960 t/helper/test-dump-untracked-cache | 1 | 3408645 | 8780816 t/helper/test-dump-fsmonitor | 1 | 3406639 | 8776656 po/vi.po | 104 | 1376337 | 51441603 po/de.po | 210 | 1360112 | 71198603 ``` This kind of analysis has been helpful in identifying the reasons for growth in a few internal monorepos. Those findings motivated the changes in #5157 and #5171. With this early version in Git for Windows, we can expand the reach of the experimental tool in advance of it being contributed to the upstream project. Unfortunately, this will mean that in the next `microsoft/git` rebase, Jeff Hostetler's version will need to be pulled out since there are enough conflicts. These conflicts include how tables are stored and generated, as the version in this PR is slightly more general to allow for different kinds of data. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Git - fast, scalable, distributed revision control system
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.
Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.
Please read the file INSTALL for installation instructions.
Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.
See Documentation/gittutorial.adoc to get started, then see
Documentation/giteveryday.adoc for a useful minimum set of commands, and
Documentation/git-<commandname>.adoc for documentation of each command.
If git has been correctly installed, then the tutorial can also be
read with man gittutorial or git help tutorial, and the
documentation of each command with man git-<commandname> or git help <commandname>.
CVS users may also want to read Documentation/gitcvs-migration.adoc
(man gitcvs-migration or git help cvs-migration if git is
installed).
The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission and Documentation/CodingGuidelines).
Those wishing to help with error message, usage and informational message
string translations (localization l10) should see po/README.md
(a po file is a Portable Object file that holds the translations).
To subscribe to the list, send an email to git+subscribe@vger.kernel.org (see https://subspace.kernel.org/subscribing.html for details). The mailing list archives are available at https://lore.kernel.org/git/, https://marc.info/?l=git and other archival sites.
Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.
The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.
The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):
- random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
- stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
- "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
- "goddamn idiotic truckload of sh*t": when it breaks