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Git filter-branch man page

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Released: Mar 23, View statistics for this project via Libraries. It roughly falls into the same space of tool as git filter-branch but without the capitulation-inducing poor performance , with far more capabilities, and with a design that scales usability-wise beyond trivial rewriting cases. While most users will probably just use filter-repo as a simple command line tool and likely only use a few of its flags , at its core filter-repo contains a library for creating history rewriting tools. As such, users with specialized needs can leverage it to quickly create entirely new history rewriting tools.

SEE VIDEO BY TOPIC: GIT: Working with Branches

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SEE VIDEO BY TOPIC: Git filtering commits by author or keyword - Advanced Git - 04

git-filter-branch(1) Manual Page

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Those filters can modify each tree e. Otherwise, all information including original commit times or merge information will be preserved. If you specify no filters, the commits will be recommitted without any changes, which would normally have no effect.

Nevertheless, this may be useful in the future for compensating for some git bugs or such, therefore such a usage is permitted.

The rewritten history will have different object names for all the objects and will not converge with the original branch. You will not be able to easily push and distribute the rewritten branch on top of the original branch. Please do not use this command if you do not know the full implications, and avoid using it anyway, if a simple single commit would suffice to fix your problem.

Reportedly the speedup is very noticeable. The filters are applied in the order as listed below. A map function is available that takes an "original sha1 id" argument and outputs a "rewritten sha1 id" if the commit has been already rewritten, and "original sha1 id" otherwise; the map function can return several ids on separate lines if your commit filter emitted multiple commits.

This is the filter for modifying the environment in which the commit will be performed. Do not forget to re-export the variables. This is the filter for rewriting the tree and its contents.

The argument is evaluated in shell with the working directory set to the root of the checked out tree. The new tree is then used as-is new files are auto-added, disappeared files are auto-removed - neither. This is the filter for rewriting the index. It is similar to the tree filter but does not check out the tree, which makes it much faster.

For hairy cases, see git-update-index 1. This is the filter for rewriting the commit's parent list. It will receive the parent string on stdin and shall output the new parent string on stdout. The parent string is in a format accepted by git-commit-tree 1 : empty for the initial commit, "-p parent" for a normal commit and "-p parent1 -p parent2 -p parent3 …" for a merge commit.

This is the filter for rewriting the commit messages. The argument is evaluated in the shell with the original commit message on standard input; its standard output is used as the new commit message. This is the filter for performing the commit. The commit id is expected on stdout. As a special extension, the commit filter may emit multiple commit ids; in that case, ancestors of the original commit will have all of them as parents.

You can use the map convenience function in this filter, and other convenience functions, too. If you want that, use git-rebase 1 instead. This is the filter for rewriting tag names. When passed, it will be called for every tag ref that points to a rewritten object or to a tag object which points to a rewritten object.

The original tag name is passed via standard input, and the new tag name is expected on standard output. The original tags are not deleted, but can be overwritten; use "--tag-name-filter cat" to simply update the tags. In this case, be very careful and make sure you have the old tags backed up in case the conversion has run afoul. Note that there is currently no support for proper rewriting of tag objects; in layman terms, if the tag has a message or signature attached, the rewritten tag won't have it.

It is by definition impossible to preserve signatures at any rate. Only look at the history which touches the given subdirectory. The result will contain that directory and only that as its project root. Use this option to set the namespace where the original commits will be stored. Use this option to set the path to the temporary directory used for rewriting.

When applying a tree filter, the command needs to temporary checkout the tree to some directory, which may consume considerable space in case of large projects. By default it does this in the. When options are given after the new branch name, they will be passed to git-rev-list 1. Only commits in the resulting output will be filtered, although the filtered commits can still reference parents which are outside of that set.

Suppose you want to remove a file containing confidential information or copyright violation from all commits:. To set a commit which typically is at the tip of another history to be the parent of the current initial commit, in order to paste the other history behind the current history:. Note that this assumes history with a single root that is, no merge without common ancestors happened.

If this is not the case, use:. The shift magic first throws away the tree id and then the -p parameters. Note that this handles merges properly! In case Darl committed a merge between P1 and P2, it will be propagated properly and all children of the merge will become merge commits with P1,P2 as their parents instead of the merge commit. You can rewrite the commit log messages using --message-filter. For example, git-svn-id strings in a repository created by git-svn can be removed this way:.

To restrict rewriting to only part of the history, specify a revision range in addition to the new branch name. The new branch name will point to the top-most revision that a git rev-list of this range will print.

NOTE the changes introduced by the commits, and which are not reverted by subsequent commits, will still be in the rewritten branch. Filters The filters are applied in the order as listed below. Suppose you want to remove a file containing confidential information or copyright violation from all commits: git filter-branch --tree-filter 'rm filename' HEAD.

H --not D git filter-branch H --not C.

files are indexed as both removed and untracked and are still in place

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Here are some more examples from my daily work. The manual page for git filter-branch contains several examples already.

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GIT filter-branch

Those filters can modify each tree e. Otherwise, all information including original commit times or merge information will be preserved. The command will only rewrite the positive refs mentioned in the command line e. If you specify no filters, the commits will be recommitted without any changes, which would normally have no effect. Nevertheless, this may be useful in the future for compensating for some Git bugs or such, therefore such a usage is permitted. NOTE : This command honors. If you have any grafts or replacement refs defined, running this command will make them permanent. The rewritten history will have different object names for all the objects and will not converge with the original branch. You will not be able to easily push and distribute the rewritten branch on top of the original branch. Please do not use this command if you do not know the full implications, and avoid using it anyway, if a simple single commit would suffice to fix your problem.

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By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I've read the git filter-branch man pages and I am puzzled on how I could run a command in a repository that would delete all commit history after a certain date. I have cloned a copy of the repository on my local machine W7 64bit Running Cygwin I would like to test the command before I make a copy of the project on the remote server itself. You don't need to use filter-branch.

This books starts with an introduction into distributed version control systems.

Those filters can modify each tree e. Otherwise, all information including original commit times or merge information will be preserved. If you specify no filters, the commits will be recommitted without any changes, which would normally have no effect. Nevertheless, this may be useful in the future for compensating for some git bugs or such, therefore such a usage is permitted.

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I worked out how to retroactively annex a large file that had been checked into a git repo some time ago. I thought this might be useful for others, so I am posting it here. Suppose you have a git repo where somebody had checked in a large file you would like to have annexed, but there are a bunch of commits after it and you don't want to loose history, but you also don't want everybody to have to retrieve the large file when they clone the repo. This will re-write history as if the file had been annexed when it was originally added.

This is not a real filter executed for each commit but a one time setup just before the loop. Therefore no commit-specific variables are defined yet. Functions or variables defined here can be used or modified in the following filter steps except the commit filter, for technical reasons. Only look at the history which touches the given subdirectory. The result will contain that directory and only that as its project root.

files are indexed as both removed and untracked and are still in place

Do not rewrite published history! In this context, published means any history that others have already access to. Usually this means anything you have pushed to a shared repository. If anyone else has based work on the history you are rewriting, they will need to manually fix their history afterwards. While this is possible, avoid it if you can.

Mar 23, - Despite the use of --all and --tag-name-filter, and filter-branch's manpage claiming that a clone is enough to get rid of old objects, the extra.

A version control system VCS allows you to track the history of a collection of files. It supports creating different versions of this collection. Each version captures a snapshot of the files at a certain point in time and the VCS allows you to switch between these versions. These versions are stored in a specific place, typically called a repository.

git-filter-repo 2.26.0

These safety and performance issues cannot be backward compatibly fixed and as such, its use is not recommended. Please use an alternative history filtering tool such as git filter-repo. Those filters can modify each tree e.

git-filter-branch(1) - Linux man page

Она никак не могла свыкнуться с этой мыслью. - Цифровая крепость, - сказал Стратмор.  - Так назвал ее Танкадо.

Я из канадского посольства. Наш гражданин был сегодня доставлен в вашу больницу.

Он замер, чувствуя мощный прилив адреналина. Неужели Стратмор каким-то образом проскользнул наверх. Разум говорил ему, что Стратмор должен быть не наверху, а внизу. Однако звук повторился, на этот раз громче.

Он почувствовал жжение в боку, дотронулся до больного места и посмотрел на руку. Между пальцами и на кольце Танкадо была кровь. У него закружилась голова. Увидев выгравированные знаки, Беккер страшно удивился. Он совсем забыл про кольцо на пальце, забыл, для чего приехал в Севилью. Он посмотрел на приближающуюся фигуру, затем перевел взгляд на кольцо.

Он был известен среди сотрудников, он пользовался репутацией патриота и идеалиста… честного человека в мире, сотканном из лжи. За годы, прошедшие после появления в АНБ Сьюзан, Стратмор поднялся с поста начальника Отдела развития криптографии до второй по важности позиции во всем агентстве. Теперь только один человек в АНБ был по должности выше коммандера Стратмора - директор Лиланд Фонтейн, мифический правитель Дворца головоломок, которого никто никогда не видел, лишь изредка слышал, но перед которым все дрожали от страха. Он редко встречался со Стратмором с глазу на глаз, но когда такое случалось, это можно было сравнить с битвой титанов.

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