# git-sim
[](https://github.com/initialcommit-com/git-sim/blob/main/LICENSE)
[](https://img.shields.io/github/v/release/initialcommit-com/git-sim)
[](https://pepy.tech/project/git-sim)
[](https://github.com/initialcommit-com/git-sim/graphs/contributors)
[](https://twitter.com/intent/tweet?text=Check%20out%20%23gitsim%20%2D%20a%20tool%20to%20visualize%20%23Git%20operations%20in%20your%20local%20repos%20with%20a%20single%20terminal%20command,%20by%20%40initcommit!%20https%3A%2F%2Fgithub%2Ecom%2Finitialcommit%2Dcom%2Fgit%2Dsim)
Visually simulate Git operations in your own repos with a single terminal command.
This generates an image (default) or video visualization depicting the Git command's behavior.
Command syntax is based directly on Git's command-line syntax, so using git-sim is as familiar as possible.
Example: `$ git-sim merge <branch>`
<br/><br/>
Check out the [git-sim release blog post](https://initialcommit.com/blog/git-sim) for the full scoop!
## Support git-sim
Git-Sim is Free and Open-Source Software (FOSS). Your support will help me work on it (and other Git projects) full time!
- [Sponsor Git-Sim on GitHub](https://github.com/sponsors/initialcommit-com)
- [Support Git-Sim via Patreon](https://patreon.com/user?u=92322459)
## Use cases
- Visualize Git commands to understand their effects on your repo before actually running them
- Prevent unexpected working directory and repository states by simulating before running
- Share visualizations (jpg/png image or mp4/webm video) of your Git commands with your team, or the world
- Save visualizations as a part of your team documentation to document workflow and prevent recurring issues
- Create static Git diagrams (jpg/png) or dynamic animated videos (mp4/webm) to speed up content creation
- Help visual learners understand how Git commands work
- Combine with bundled command [git-dummy](https://github.com/initialcommit-com/git-dummy) to generate a dummy Git repo and then simulate operations on it
## Features
- Run a one-liner git-sim command in the terminal to generate a custom Git command visualization (.jpg) from your repo
- Supported commands: `add`, `branch`, `checkout`, `cherry-pick`, `clean`, `clone`, `commit`, `config`, `fetch`, `init`, `log`, `merge`, `mv`, `pull`, `push`, `rebase`, `remote`, `reset`, `restore`, `revert`, `rm`, `stash`, `status`, `switch`, `tag`
- Generate an animated video (.mp4) instead of a static image using the `--animate` flag (note: significant performance slowdown, it is recommended to use `--low-quality` to speed up testing and remove when ready to generate presentation-quality video)
- Color commits by parameter, such as author with the `--color-by=author` option
- Choose between dark mode (default) and light mode
- Specify output formats of either jpg, png, mp4, or webm
- Combine with bundled command [git-dummy](https://github.com/initialcommit-com/git-dummy) to generate a dummy Git repo and then simulate operations on it
- Animation only: Add custom branded intro/outro sequences if desired
- Animation only: Speed up or slow down animation speed as desired
## Quickstart
Note: If you prefer to install git-sim with Docker, skip steps (1) and (2) here and jump to the [Docker installation](#docker-installation) section below, then come back here to step (3).
1) **Install Manim and its dependencies for your OS / environment:**
- [Install Manim on Windows](https://docs.manim.community/en/stable/installation/windows.html)
- [Install Manim on MacOS](https://docs.manim.community/en/stable/installation/macos.html)
- [Install Manim on Linux](https://docs.manim.community/en/stable/installation/linux.html)
- [Install Manim in Conda](https://docs.manim.community/en/stable/installation/conda.html)
2) Install `git-sim`:
```console
$ pip3 install git-sim
```
Note: For MacOS, it is recommended to **NOT** use the system Python to install Git-Sim, and instead use [Homebrew](https://brew.sh) to install a version of Python to work with Git-Sim. Virtual environments should work too.
3) Browse to the Git repository you want to simulate Git commands in:
```console
$ cd path/to/git/repo
```
4) Run the program:
```console
$ git-sim [global options] <subcommand> [subcommand options]
```
Optional: If you don't have an existing Git repo to simulate commands on, use the bundled [git-dummy](https://github.com/initialcommit-com/git-dummy) command to generate a dummy Git repo with the desired number of branches and commits to simulate operations on with git-sim:
```console
$ git-dummy --name="dummy-repo" --branches=3 --commits=10
$ cd dummy-repo
$ git-sim [global options] <subcommand> [subcommand options]
```
Or if you want to do it all in a single command:
```console
$ git-dummy --no-subdir --branches=3 --commits=10 && git-sim [global options] <subcommand> [subcommand options]
```
5) Simulated output will be created as a `.jpg` file. Output files are named using the subcommand executed combined with a timestamp, and by default are stored in a subdirectory called `git-sim_media/`. The location of this subdirectory is customizable using the command line flag `--media-dir=path/to/output`. Note that when the `--animate` global flag is used, render times will be much longer and a `.mp4` video output file will be produced.
6) For convenience, environment variables can be set for any global command-line option available in git-sim. All environment variables start with `git_sim_` followed by the name of the option.
For example, the `--media-dir` option can be set as an environment variable like:
```console
$ export git_sim_media_dir=~/Desktop
```
Similarly, the `--speed` option can be set like:
```console
$ export git_sim_speed=2
```
Boolean flags can be set like:
```console
$ export git_sim_light_mode=true
```
In general:
```console
$ export git_sim_option_name=option_value
```
Explicitly specifying options at the command-line takes precedence over the corresponding environment variable values.
7) See global help for list of global options/flags and subcommands:
```console
$ git-sim -h
```
8) See subcommand help for list of options/flags for a specific subcommand:
```console
$ git-sim <subcommand> -h
```
## Requirements
* Python 3.7 or greater
* Pip (Package manager for Python)
* [Manim (Community version)](https://www.manim.community/)
## Commands
Basic usage is similar to Git itself - `git-sim` takes a familiar set of subcommands including "add", "branch", "checkout", "cherry-pick", "clean", "clone", "commit", "config", "fetch", "init", "log", "merge", "mv", "pull", "push", "rebase", "remote", "reset", "restore", "revert", "rm", "stash", "status", "switch", "tag" along with corresponding options.
```console
$ git-sim [global options] <subcommand> [subcommand options]
```
The `[global options]` apply to the overarching `git-sim` simulation itself, including:
`-n <number>`: Number of commits to display from each branch head.
`--all`: Display all local branches in the log output.
`--animate`: Instead of outputting a static image, animate the Git command behavior in a .mp4 video.
`--color-by author`: Color commits by parameter, such as author.
`--invert-branches`: Invert positioning of branches by reversing order of multiple parents where applicable.
`--hide-merged-branches`: Hide commits from merged branches, i.e. only display mainline commits.
`--media-dir`: The path at which to store the simulated output media files.
`-d`: Disable the automatic opening of the image/video file after generation. Useful to avoid errors in console mode with no GUI.
`--light-mode`: Use a light mode color scheme instead of default dark mode.
`--reverse, -r`: Display commit history in the reverse direction.
`--img-format`: Output format for the image file, i.e. `jpg` or `png`. Default output format is `jpg`.
`--stdout`: Write raw image data to stdout while suppressing all other program output.
`--output-only-path`: Only output the path to the generated media file to stdout. Useful for other programs to ingest.
`--quiet, -q`: Suppress all output except errors.
`--highlight-commit-messages`: Make commit message text bigger and bold, and hide commit ids.
`--style`: Graphical style of the output image or animated video, i.e. `clean` (default) or `thick`.
Animation-only global options (to be used in conjunction with `--animate`):
`--video-format`: Output format for the video file, i.e. `mp4` or `webm`. Default output format is `mp4`.
`--speed=n`: Set the multiple of animation speed of the output simulation, `n` can be an integer or float, default is 1.5.
`--low-quality`: Render the animation in low quality to speed up creation time, recommended for non-presentation use.
`--show-intro`: Add an intro sequence with custom logo and title.
`--show-outro`: Add an outro sequence with custom logo and text.
`--title=title`: Custom title to display at the beginning of the animation.
`--logo=logo.png`: The path to a custom logo to use in the animation intro/outro.
`--outro-top-text`: Custom text to display above the logo during the outro.
`--outro-bottom-text`: Custom text to display below the logo during the outro.
`--font`: Font family used to display rendered text.
The `[subcommand options]` are like regular Git options specific to the specified subcommand (see below for a full list).
The following is a list of Git commands that can be simulated and their corresponding options/flags.
### git add
Usage: `git-sim add <file 1> <file 2> ... <file n>`
- Specify one or more `<file>` as a *modified* working directory file, or an untracked file
- Simulated output will show files being moved to the staging area
- Note that simulated output will also show the most recent 5 commits on the active branch
### git branch
Usage: `git-sim branch <new branch name>`
- Specify `<new branch name>` as the name of the new branch to simulate creation of
- Simulated output will show the newly create branch ref along with most recent 5 commits on the active branch
### git checkout
Usage: `git-sim checkout [-b] <branch>`
- Checks out `<branch>` into the working directory, i.e. moves `HEAD` to the specified `<branch>`
- The `-b` flag creates a new branch with the specified name `<branch>` and checks it out, assuming it doesn't already exist
### git cherry-pick
Usage: `git-sim cherry-pick <commit>`
- Specify `<commit>` as a ref (branch name/tag) or commit ID to cherry-pick onto the active branch
- Supports editing the cherry-picked commit message with: `$ git-sim cherry-pick <commit> -e "Edited commit message"`
### git clean
Usage: `git-sim clean`
- Simulated output will show untracked files being deleted
- Since this is just a simulation, no need to specify `-i`, `-n`, `-f` as in regular Git
- Note that simulated output will also show the most recent 5 commits on the active branch
### git clone
Usage: `git-sim clone <url>`
- Clone the remote repo from `<url>` (web URL or filesystem path) to a new folder in the current directory
- Output will report if clone operation is successful and show log of local clone
### git commit
Usage: `git-sim commit -m "Commit message"`
- Simulated output will show the new commit added to the tip of the active branch
- Specify a commit message with the `-m` option
- HEAD and the active branch will be moved to the new commit
- Simulated output will show files in the staging area being included in the new commit
- Supports amending the last commit with: `$ git-sim commit --amend -m "Amended commit message"`
### git config
Usage: `git-sim config [--list] <section.option> <value>`
- Simulated output describes the specified configuration change
- Use `--list` or `-l` to display all configuration
### git fetch
Usage: `git-sim fetch <remote> <branch>`
- Fetches the specified `<branch>` from the specified `<remote>` to the local repo
### git init
Usage: `git-sim init`
- Simulated output describes the initialized `.git/` directory and it's contents
### git log
Usage: `git-sim log [-n <number>] [--all]`
- Simulated output will show the most recent 5 commits on the active branch by default
- Use `-n <number>` to set number of commits to display from each branch head
- Set `--all` to display all local branches in the log output
### git merge
Usage: `git-sim merge <branch> [-m "Commit message"] [--no-ff]`
- Specify `<branch>` as the branch name to merge into the active branch
- If desired, specify a commit message with the `-m` option
- Simulated output will depict a fast-forward merge if possible
- Otherwise, a three-way merge will be depicted
- To force a merge commit when a fast-forward is possible, use `--no-ff`
- If merge fails due to merge conflicts, the conflicting files are displayed
### git mv
Usage: `git-sim mv <file> <new file>`
- Specify `<file>` as file to update name/path
- Specify `<new file>` as new name/path of file
- Simulated output will show the name/path of the file being updated
- Note that simulated output will also show the most recent 5 commits on the active branch
### git pull
Usage: `git-sim pull [<remote> <branch>]`
- Pulls the specified `<branch>` from the specified `<remote>` to the local repo
- If `<remote>` and `<branch>` are not specified, the active branch is pulled from the default remote
- If merge conflicts occur, they are displayed in a table
### git push
Usage: `git-sim push [<remote> <branch>]`
- Pushes the specified `<branch>` to the specified `<remote>` and displays the local result
- If `<remote>` and `<branch>` are not specified, the active branch is pushed to the default remote
- If the push fails due to remote changes that don't exist in the local repo, a message is included telling the user to pull first, along with color coding which commits need to be pulled
### git rebase
Usage: `git-sim rebase <new-base>`
- Specify `<new-base>` as the branch name to rebase the active branch onto
### git remote
Usage: `git-sim remote [add|rename|remove|get-url|set-url] [<remote>] [<url>]`
- Simulated output will show remotes being added, renamed, removed, modified as indicated
- Running `git-sim remote` with no options will list all existing remotes and their details
### git reset
Usage: `git-sim reset <reset-to> [--mixed|--soft|--hard]`
- Specify `<reset-to>` as any commit id, branch name, tag, or other ref to simulate reset to from the current HEAD (default: `HEAD`)
- As with a normal git reset command, default reset mode is `--mixed`, but can be specified using `--soft`, `--hard`, or `--mixed`
- Simulated output will show branch/HEAD resets and resulting state of the working directory, staging area, and whether any file changes would be deleted by running the actual command
### git restore
Usage: `git-sim restore <file 1> <file 2> ... <file n>`
- Specify one or more `<file>` as a *modified* working directory file, or staged file
- Simulated output will show files being moved back to the working directory or discarded changes
- Note that simulated output will also show the most recent 5 commits on the active branch
### git revert
Usage: `git-sim revert <to-revert>`
- Specify `<to-revert>` as any commit id, branch name, tag, or other ref to simulate revert for
- Simulated output will show the new commit which reverts the changes from `<to-revert>`
- Simulated output will include the next 4 most recent commits on the active branch
### git rm
Usage: `git-sim rm <file 1> <file 2> ... <file n>`
- Specify one or more `<file>` as a *tracked* file
- Simulated output will show files being removed from Git tracking
- Note that simulated output will also show the most recent 5 commits on the active branch
### git stash
Usage: `git-sim stash [push|pop|apply] <file>`
- Specify one or more `<file>` as a *modified* working directory file, or staged file
- If no `<file>` is specified, all available files will be included
- Simulated output will show files being moved in/out of the Git stash
- Note that simulated output will also show the most recent 5 commits on the active branch
### git status
Usage: `git-sim status`
- Simulated output will show the state of the working directory, staging area, and untracked files
- Note that simulated output will also show the most recent 5 commits on the active branch
### git switch
Usage: `git-sim switch [-c] <branch>`
- Switches the checked-out branch to `<branch>`, i.e. moves `HEAD` to the specified `<branch>`
- The `-c` flag creates a new branch with the specified name `<branch>` and switches to it, assuming it doesn't already exist
### git tag
Usage: `git-sim tag <new tag name>`
- Specify `<new tag name>` as the name of the new tag to simulate creation of
- Simulated output will show the newly create tag ref along with most recent 5 commits on the active branch
## Video animation examples
```console
$ git-sim --animate reset HEAD^
```
https://user-images.githubusercontent.com/49353917/210943230-f38d879b-bb0d-4d42-a196-f24efb9e351a.mp4
```console
$ git checkout main
$ git-sim --animate merge dev
```
https://user-images.githubusercontent.com/49353917/210943418-22c2cd11-be96-41bc-b621-7018eebc6bc0.mp4
```console
$ git checkout dev
$ git-sim --animate rebase main
```
https://user-images.githubusercontent.com/49353917/210943815-4b8be2da-18da-4c42-927a-61cf9a22834e.mp4
```console
$ git checkout main
$ git-sim --animate cherry-pick dev
```
https://user-images.githubusercontent.com/49353917/210944001-77bd0130-306b-40a8-ba0b-22e50172802b.mp4
## Basic command examples
Simulate the output of the git log command:
```console
$ cd path/to/git/repo
$ git-sim log
```
Simulate the output of the git status command:
```console
$ git-sim status
```
Simulate adding a file to the Git staging area:
```console
$ git-sim add filename.ext
```
Simulate restoring a file from the Git staging area:
```console
$ git-sim restore filename.ext
```
Simulate creating a new commit based on currently staged changes:
```console
$ git-sim commit -m "Commit message"
```
Simulate stashing all working directory and staged changes:
```console
$ git-sim stash
```
Simulate creating a new Git branch:
```console
$ git-sim branch new-branch-name
```
Simulate creating a new Git tag:
```console
$ git-sim tag new-tag-name
```
Simulate a hard reset of the current branch HEAD to the previous commit:
```console
$ git-sim reset HEAD^ --hard
```
Simulate reverting the changes in an older commit:
```console
$ git-sim revert HEAD~7
```
Simulate merging a branch into the active branch:
```console
$ git-sim merge feature1
```
Simulate rebasing the active branch onto a new base:
```console
$ git-sim rebase main
```
Simulate cherry-picking a commit from another branch onto the active branch:
```console
$ git-sim cherry-pick 0ae641
```
## Command examples with extra options/flags
Use light mode for white background and black text, instead of the default black background with white text:
```console
$ git-sim --light-mode status
```
Animate the simulated output as a .mp4 video file:
```console
$ git-sim --animate add filename.ext
```
Add an intro and outro with custom text and logo (must include `--animate`):
```console
$ git-sim --animate --show-intro --show-outro --outro-top-text="My Git Repo" --outro-bottom-text="Thanks for watching!" --logo=path/to/logo.png status
```
Customize the output image/video directory location:
```console
$ git-sim --media-dir=path/to/output status
```
Optionally, set the environment variable `git_sim_media_dir` to set a global default media directory, to be used if no `--media-dir` is provided. Simulated output images/videos will be placed in this location, in subfolders named with the corresponding repo's name.
```console
$ export git_sim_media_dir=path/to/media/directory
$ git-sim status
```
Note: `--media-dir` takes precedence over the environment variable. If you set the environment variable and still provide the argument, you'll find the media in the path provided by `--media-dir`.
Generate output video in low quality to speed up rendering time (useful for repeated testing, must include `--animate`):
```console
$ git-sim --animate --low-quality status
```
## Installation
See **Quickstart** section for details on installing manim and other dependencies. Then run:
```console
$ pip3 install git-sim
```
## Docker installation
1) Clone down the git-sim repository:
```console
$ git clone https://github.com/initialcommit-com/git-sim.git
```
2) Browse into the `git-sim` folder and build the Docker image:
```console
$ docker build -t git-sim .
```
3) Run git-sim commands as follows:
- Windows: `docker run --rm -v %cd%:/usr/src/git-sim git-sim [global options] <subcommand> [subcommand options]`
- MacOS / Linux: `docker run --rm -v $(pwd):/usr/src/git-sim git-sim [global options] <subcommand> [subcommand options]`
Optional: On MacOS / Linux / or GitBash in Windows, create an alias for the long docker command so your can run it as a normal `git-sim` command. To do so add the following line to your `.bashrc` or equivalent, then restart your terminal:
```bash
git-sim() { docker run --rm -v $(pwd):/usr/src/git-sim git-sim "$@"; }
```
This will enable you to run git-sim subcommands as [described above](#commands).
## Learn More
Learn more about this tool on the [git-sim project page](https://initialcommit.com/tools/git-sim).
## Authors
**Jacob Stopak** - on behalf of [Initial Commit](https://initialcommit.com)
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"description": "# git-sim\r\n\r\n\r\n[](https://github.com/initialcommit-com/git-sim/blob/main/LICENSE)\r\n[](https://img.shields.io/github/v/release/initialcommit-com/git-sim)\r\n[](https://pepy.tech/project/git-sim)\r\n[](https://github.com/initialcommit-com/git-sim/graphs/contributors)\r\n[](https://twitter.com/intent/tweet?text=Check%20out%20%23gitsim%20%2D%20a%20tool%20to%20visualize%20%23Git%20operations%20in%20your%20local%20repos%20with%20a%20single%20terminal%20command,%20by%20%40initcommit!%20https%3A%2F%2Fgithub%2Ecom%2Finitialcommit%2Dcom%2Fgit%2Dsim)\r\n\r\nVisually simulate Git operations in your own repos with a single terminal command.\r\n\r\nThis generates an image (default) or video visualization depicting the Git command's behavior.\r\n\r\nCommand syntax is based directly on Git's command-line syntax, so using git-sim is as familiar as possible.\r\n\r\nExample: `$ git-sim merge <branch>`\r\n<br/><br/>\r\n\r\n\r\nCheck out the [git-sim release blog post](https://initialcommit.com/blog/git-sim) for the full scoop!\r\n\r\n## Support git-sim\r\nGit-Sim is Free and Open-Source Software (FOSS). Your support will help me work on it (and other Git projects) full time!\r\n- [Sponsor Git-Sim on GitHub](https://github.com/sponsors/initialcommit-com)\r\n- [Support Git-Sim via Patreon](https://patreon.com/user?u=92322459)\r\n\r\n## Use cases\r\n- Visualize Git commands to understand their effects on your repo before actually running them\r\n- Prevent unexpected working directory and repository states by simulating before running\r\n- Share visualizations (jpg/png image or mp4/webm video) of your Git commands with your team, or the world\r\n- Save visualizations as a part of your team documentation to document workflow and prevent recurring issues\r\n- Create static Git diagrams (jpg/png) or dynamic animated videos (mp4/webm) to speed up content creation\r\n- Help visual learners understand how Git commands work\r\n- Combine with bundled command [git-dummy](https://github.com/initialcommit-com/git-dummy) to generate a dummy Git repo and then simulate operations on it\r\n\r\n## Features\r\n- Run a one-liner git-sim command in the terminal to generate a custom Git command visualization (.jpg) from your repo\r\n- Supported commands: `add`, `branch`, `checkout`, `cherry-pick`, `clean`, `clone`, `commit`, `config`, `fetch`, `init`, `log`, `merge`, `mv`, `pull`, `push`, `rebase`, `remote`, `reset`, `restore`, `revert`, `rm`, `stash`, `status`, `switch`, `tag`\r\n- Generate an animated video (.mp4) instead of a static image using the `--animate` flag (note: significant performance slowdown, it is recommended to use `--low-quality` to speed up testing and remove when ready to generate presentation-quality video)\r\n- Color commits by parameter, such as author with the `--color-by=author` option\r\n- Choose between dark mode (default) and light mode\r\n- Specify output formats of either jpg, png, mp4, or webm\r\n- Combine with bundled command [git-dummy](https://github.com/initialcommit-com/git-dummy) to generate a dummy Git repo and then simulate operations on it\r\n- Animation only: Add custom branded intro/outro sequences if desired\r\n- Animation only: Speed up or slow down animation speed as desired\r\n\r\n## Quickstart\r\nNote: If you prefer to install git-sim with Docker, skip steps (1) and (2) here and jump to the [Docker installation](#docker-installation) section below, then come back here to step (3).\r\n\r\n1) **Install Manim and its dependencies for your OS / environment:**\r\n - [Install Manim on Windows](https://docs.manim.community/en/stable/installation/windows.html)\r\n - [Install Manim on MacOS](https://docs.manim.community/en/stable/installation/macos.html)\r\n - [Install Manim on Linux](https://docs.manim.community/en/stable/installation/linux.html)\r\n - [Install Manim in Conda](https://docs.manim.community/en/stable/installation/conda.html)\r\n\r\n2) Install `git-sim`:\r\n\r\n```console\r\n$ pip3 install git-sim\r\n```\r\n\r\nNote: For MacOS, it is recommended to **NOT** use the system Python to install Git-Sim, and instead use [Homebrew](https://brew.sh) to install a version of Python to work with Git-Sim. Virtual environments should work too.\r\n\r\n3) Browse to the Git repository you want to simulate Git commands in:\r\n\r\n```console\r\n$ cd path/to/git/repo\r\n```\r\n\r\n4) Run the program:\r\n\r\n```console\r\n$ git-sim [global options] <subcommand> [subcommand options]\r\n```\r\n\r\nOptional: If you don't have an existing Git repo to simulate commands on, use the bundled [git-dummy](https://github.com/initialcommit-com/git-dummy) command to generate a dummy Git repo with the desired number of branches and commits to simulate operations on with git-sim:\r\n\r\n```console\r\n$ git-dummy --name=\"dummy-repo\" --branches=3 --commits=10\r\n$ cd dummy-repo\r\n$ git-sim [global options] <subcommand> [subcommand options]\r\n```\r\n\r\nOr if you want to do it all in a single command:\r\n\r\n```console\r\n$ git-dummy --no-subdir --branches=3 --commits=10 && git-sim [global options] <subcommand> [subcommand options]\r\n```\r\n\r\n5) Simulated output will be created as a `.jpg` file. Output files are named using the subcommand executed combined with a timestamp, and by default are stored in a subdirectory called `git-sim_media/`. The location of this subdirectory is customizable using the command line flag `--media-dir=path/to/output`. Note that when the `--animate` global flag is used, render times will be much longer and a `.mp4` video output file will be produced.\r\n\r\n6) For convenience, environment variables can be set for any global command-line option available in git-sim. All environment variables start with `git_sim_` followed by the name of the option.\r\n\r\nFor example, the `--media-dir` option can be set as an environment variable like:\r\n\r\n```console\r\n$ export git_sim_media_dir=~/Desktop\r\n```\r\n\r\nSimilarly, the `--speed` option can be set like:\r\n\r\n```console\r\n$ export git_sim_speed=2\r\n```\r\n\r\nBoolean flags can be set like:\r\n\r\n```console\r\n$ export git_sim_light_mode=true\r\n```\r\n\r\nIn general:\r\n\r\n```console\r\n$ export git_sim_option_name=option_value\r\n```\r\n\r\nExplicitly specifying options at the command-line takes precedence over the corresponding environment variable values.\r\n\r\n7) See global help for list of global options/flags and subcommands:\r\n\r\n```console\r\n$ git-sim -h\r\n```\r\n\r\n8) See subcommand help for list of options/flags for a specific subcommand:\r\n\r\n```console\r\n$ git-sim <subcommand> -h\r\n```\r\n\r\n## Requirements\r\n* Python 3.7 or greater\r\n* Pip (Package manager for Python)\r\n* [Manim (Community version)](https://www.manim.community/)\r\n\r\n## Commands\r\nBasic usage is similar to Git itself - `git-sim` takes a familiar set of subcommands including \"add\", \"branch\", \"checkout\", \"cherry-pick\", \"clean\", \"clone\", \"commit\", \"config\", \"fetch\", \"init\", \"log\", \"merge\", \"mv\", \"pull\", \"push\", \"rebase\", \"remote\", \"reset\", \"restore\", \"revert\", \"rm\", \"stash\", \"status\", \"switch\", \"tag\" along with corresponding options.\r\n\r\n\r\n```console\r\n$ git-sim [global options] <subcommand> [subcommand options]\r\n```\r\n\r\nThe `[global options]` apply to the overarching `git-sim` simulation itself, including:\r\n\r\n`-n <number>`: Number of commits to display from each branch head. \r\n`--all`: Display all local branches in the log output. \r\n`--animate`: Instead of outputting a static image, animate the Git command behavior in a .mp4 video. \r\n`--color-by author`: Color commits by parameter, such as author. \r\n`--invert-branches`: Invert positioning of branches by reversing order of multiple parents where applicable. \r\n`--hide-merged-branches`: Hide commits from merged branches, i.e. only display mainline commits. \r\n`--media-dir`: The path at which to store the simulated output media files. \r\n`-d`: Disable the automatic opening of the image/video file after generation. Useful to avoid errors in console mode with no GUI. \r\n`--light-mode`: Use a light mode color scheme instead of default dark mode. \r\n`--reverse, -r`: Display commit history in the reverse direction. \r\n`--img-format`: Output format for the image file, i.e. `jpg` or `png`. Default output format is `jpg`. \r\n`--stdout`: Write raw image data to stdout while suppressing all other program output. \r\n`--output-only-path`: Only output the path to the generated media file to stdout. Useful for other programs to ingest. \r\n`--quiet, -q`: Suppress all output except errors. \r\n`--highlight-commit-messages`: Make commit message text bigger and bold, and hide commit ids. \r\n`--style`: Graphical style of the output image or animated video, i.e. `clean` (default) or `thick`.\r\n\r\nAnimation-only global options (to be used in conjunction with `--animate`):\r\n\r\n`--video-format`: Output format for the video file, i.e. `mp4` or `webm`. Default output format is `mp4`. \r\n`--speed=n`: Set the multiple of animation speed of the output simulation, `n` can be an integer or float, default is 1.5. \r\n`--low-quality`: Render the animation in low quality to speed up creation time, recommended for non-presentation use. \r\n`--show-intro`: Add an intro sequence with custom logo and title. \r\n`--show-outro`: Add an outro sequence with custom logo and text. \r\n`--title=title`: Custom title to display at the beginning of the animation. \r\n`--logo=logo.png`: The path to a custom logo to use in the animation intro/outro. \r\n`--outro-top-text`: Custom text to display above the logo during the outro. \r\n`--outro-bottom-text`: Custom text to display below the logo during the outro. \r\n`--font`: Font family used to display rendered text.\r\n\r\nThe `[subcommand options]` are like regular Git options specific to the specified subcommand (see below for a full list).\r\n\r\nThe following is a list of Git commands that can be simulated and their corresponding options/flags.\r\n\r\n### git add\r\nUsage: `git-sim add <file 1> <file 2> ... <file n>`\r\n\r\n- Specify one or more `<file>` as a *modified* working directory file, or an untracked file\r\n- Simulated output will show files being moved to the staging area\r\n- Note that simulated output will also show the most recent 5 commits on the active branch\r\n\r\n\r\n\r\n### git branch\r\nUsage: `git-sim branch <new branch name>`\r\n\r\n- Specify `<new branch name>` as the name of the new branch to simulate creation of\r\n- Simulated output will show the newly create branch ref along with most recent 5 commits on the active branch\r\n\r\n\r\n\r\n### git checkout\r\nUsage: `git-sim checkout [-b] <branch>`\r\n\r\n- Checks out `<branch>` into the working directory, i.e. moves `HEAD` to the specified `<branch>`\r\n- The `-b` flag creates a new branch with the specified name `<branch>` and checks it out, assuming it doesn't already exist\r\n\r\n\r\n\r\n### git cherry-pick\r\nUsage: `git-sim cherry-pick <commit>`\r\n\r\n- Specify `<commit>` as a ref (branch name/tag) or commit ID to cherry-pick onto the active branch\r\n- Supports editing the cherry-picked commit message with: `$ git-sim cherry-pick <commit> -e \"Edited commit message\"`\r\n\r\n\r\n\r\n### git clean\r\nUsage: `git-sim clean`\r\n\r\n- Simulated output will show untracked files being deleted\r\n- Since this is just a simulation, no need to specify `-i`, `-n`, `-f` as in regular Git\r\n- Note that simulated output will also show the most recent 5 commits on the active branch\r\n\r\n\r\n\r\n### git clone\r\nUsage: `git-sim clone <url>`\r\n\r\n- Clone the remote repo from `<url>` (web URL or filesystem path) to a new folder in the current directory\r\n- Output will report if clone operation is successful and show log of local clone\r\n\r\n\r\n\r\n### git commit\r\nUsage: `git-sim commit -m \"Commit message\"`\r\n\r\n- Simulated output will show the new commit added to the tip of the active branch\r\n- Specify a commit message with the `-m` option\r\n- HEAD and the active branch will be moved to the new commit\r\n- Simulated output will show files in the staging area being included in the new commit\r\n- Supports amending the last commit with: `$ git-sim commit --amend -m \"Amended commit message\"`\r\n\r\n\r\n\r\n### git config\r\nUsage: `git-sim config [--list] <section.option> <value>`\r\n\r\n- Simulated output describes the specified configuration change\r\n- Use `--list` or `-l` to display all configuration\r\n\r\n\r\n\r\n### git fetch\r\nUsage: `git-sim fetch <remote> <branch>`\r\n\r\n- Fetches the specified `<branch>` from the specified `<remote>` to the local repo\r\n\r\n\r\n\r\n### git init\r\nUsage: `git-sim init`\r\n\r\n- Simulated output describes the initialized `.git/` directory and it's contents\r\n\r\n\r\n\r\n### git log\r\nUsage: `git-sim log [-n <number>] [--all]`\r\n\r\n- Simulated output will show the most recent 5 commits on the active branch by default\r\n- Use `-n <number>` to set number of commits to display from each branch head\r\n- Set `--all` to display all local branches in the log output\r\n\r\n\r\n\r\n### git merge\r\nUsage: `git-sim merge <branch> [-m \"Commit message\"] [--no-ff]`\r\n\r\n- Specify `<branch>` as the branch name to merge into the active branch\r\n- If desired, specify a commit message with the `-m` option\r\n- Simulated output will depict a fast-forward merge if possible\r\n- Otherwise, a three-way merge will be depicted\r\n- To force a merge commit when a fast-forward is possible, use `--no-ff`\r\n- If merge fails due to merge conflicts, the conflicting files are displayed\r\n\r\n\r\n\r\n### git mv\r\nUsage: `git-sim mv <file> <new file>`\r\n\r\n- Specify `<file>` as file to update name/path\r\n- Specify `<new file>` as new name/path of file \r\n- Simulated output will show the name/path of the file being updated \r\n- Note that simulated output will also show the most recent 5 commits on the active branch\r\n\r\n\r\n\r\n### git pull\r\nUsage: `git-sim pull [<remote> <branch>]`\r\n\r\n- Pulls the specified `<branch>` from the specified `<remote>` to the local repo\r\n- If `<remote>` and `<branch>` are not specified, the active branch is pulled from the default remote\r\n- If merge conflicts occur, they are displayed in a table\r\n\r\n\r\n\r\n### git push\r\nUsage: `git-sim push [<remote> <branch>]`\r\n\r\n- Pushes the specified `<branch>` to the specified `<remote>` and displays the local result\r\n- If `<remote>` and `<branch>` are not specified, the active branch is pushed to the default remote\r\n- If the push fails due to remote changes that don't exist in the local repo, a message is included telling the user to pull first, along with color coding which commits need to be pulled\r\n\r\n\r\n\r\n### git rebase\r\nUsage: `git-sim rebase <new-base>`\r\n\r\n- Specify `<new-base>` as the branch name to rebase the active branch onto\r\n\r\n\r\n\r\n### git remote\r\nUsage: `git-sim remote [add|rename|remove|get-url|set-url] [<remote>] [<url>]`\r\n\r\n- Simulated output will show remotes being added, renamed, removed, modified as indicated\r\n- Running `git-sim remote` with no options will list all existing remotes and their details \r\n\r\n\r\n\r\n### git reset\r\nUsage: `git-sim reset <reset-to> [--mixed|--soft|--hard]`\r\n\r\n- Specify `<reset-to>` as any commit id, branch name, tag, or other ref to simulate reset to from the current HEAD (default: `HEAD`)\r\n- As with a normal git reset command, default reset mode is `--mixed`, but can be specified using `--soft`, `--hard`, or `--mixed`\r\n- Simulated output will show branch/HEAD resets and resulting state of the working directory, staging area, and whether any file changes would be deleted by running the actual command\r\n\r\n\r\n\r\n### git restore\r\nUsage: `git-sim restore <file 1> <file 2> ... <file n>`\r\n\r\n- Specify one or more `<file>` as a *modified* working directory file, or staged file\r\n- Simulated output will show files being moved back to the working directory or discarded changes\r\n- Note that simulated output will also show the most recent 5 commits on the active branch\r\n\r\n\r\n\r\n### git revert\r\nUsage: `git-sim revert <to-revert>`\r\n\r\n- Specify `<to-revert>` as any commit id, branch name, tag, or other ref to simulate revert for\r\n- Simulated output will show the new commit which reverts the changes from `<to-revert>`\r\n- Simulated output will include the next 4 most recent commits on the active branch\r\n\r\n\r\n\r\n### git rm\r\nUsage: `git-sim rm <file 1> <file 2> ... <file n>`\r\n\r\n- Specify one or more `<file>` as a *tracked* file\r\n- Simulated output will show files being removed from Git tracking\r\n- Note that simulated output will also show the most recent 5 commits on the active branch\r\n\r\n\r\n\r\n### git stash\r\nUsage: `git-sim stash [push|pop|apply] <file>`\r\n\r\n- Specify one or more `<file>` as a *modified* working directory file, or staged file\r\n- If no `<file>` is specified, all available files will be included\r\n- Simulated output will show files being moved in/out of the Git stash\r\n- Note that simulated output will also show the most recent 5 commits on the active branch\r\n\r\n\r\n\r\n### git status\r\nUsage: `git-sim status`\r\n\r\n- Simulated output will show the state of the working directory, staging area, and untracked files\r\n- Note that simulated output will also show the most recent 5 commits on the active branch\r\n\r\n\r\n\r\n### git switch\r\nUsage: `git-sim switch [-c] <branch>`\r\n\r\n- Switches the checked-out branch to `<branch>`, i.e. moves `HEAD` to the specified `<branch>`\r\n- The `-c` flag creates a new branch with the specified name `<branch>` and switches to it, assuming it doesn't already exist\r\n\r\n\r\n\r\n### git tag\r\nUsage: `git-sim tag <new tag name>`\r\n\r\n- Specify `<new tag name>` as the name of the new tag to simulate creation of\r\n- Simulated output will show the newly create tag ref along with most recent 5 commits on the active branch\r\n\r\n\r\n\r\n## Video animation examples\r\n```console\r\n$ git-sim --animate reset HEAD^\r\n```\r\n\r\nhttps://user-images.githubusercontent.com/49353917/210943230-f38d879b-bb0d-4d42-a196-f24efb9e351a.mp4\r\n\r\n```console\r\n$ git checkout main\r\n$ git-sim --animate merge dev\r\n```\r\n\r\nhttps://user-images.githubusercontent.com/49353917/210943418-22c2cd11-be96-41bc-b621-7018eebc6bc0.mp4\r\n\r\n```console\r\n$ git checkout dev\r\n$ git-sim --animate rebase main\r\n```\r\n\r\nhttps://user-images.githubusercontent.com/49353917/210943815-4b8be2da-18da-4c42-927a-61cf9a22834e.mp4\r\n\r\n```console\r\n$ git checkout main\r\n$ git-sim --animate cherry-pick dev\r\n```\r\n\r\nhttps://user-images.githubusercontent.com/49353917/210944001-77bd0130-306b-40a8-ba0b-22e50172802b.mp4\r\n\r\n## Basic command examples\r\nSimulate the output of the git log command:\r\n\r\n```console\r\n$ cd path/to/git/repo\r\n$ git-sim log\r\n```\r\n\r\nSimulate the output of the git status command:\r\n\r\n```console\r\n$ git-sim status\r\n```\r\n\r\nSimulate adding a file to the Git staging area:\r\n\r\n```console\r\n$ git-sim add filename.ext\r\n```\r\n\r\nSimulate restoring a file from the Git staging area:\r\n\r\n```console\r\n$ git-sim restore filename.ext\r\n```\r\n\r\nSimulate creating a new commit based on currently staged changes:\r\n\r\n```console\r\n$ git-sim commit -m \"Commit message\"\r\n```\r\n\r\nSimulate stashing all working directory and staged changes:\r\n\r\n```console\r\n$ git-sim stash\r\n```\r\n\r\nSimulate creating a new Git branch:\r\n\r\n```console\r\n$ git-sim branch new-branch-name\r\n```\r\n\r\nSimulate creating a new Git tag:\r\n\r\n```console\r\n$ git-sim tag new-tag-name\r\n```\r\n\r\nSimulate a hard reset of the current branch HEAD to the previous commit:\r\n\r\n```console\r\n$ git-sim reset HEAD^ --hard\r\n```\r\n\r\nSimulate reverting the changes in an older commit:\r\n\r\n```console\r\n$ git-sim revert HEAD~7\r\n```\r\n\r\nSimulate merging a branch into the active branch:\r\n\r\n```console\r\n$ git-sim merge feature1\r\n```\r\n\r\nSimulate rebasing the active branch onto a new base:\r\n\r\n```console\r\n$ git-sim rebase main\r\n```\r\n\r\nSimulate cherry-picking a commit from another branch onto the active branch:\r\n\r\n```console\r\n$ git-sim cherry-pick 0ae641\r\n```\r\n\r\n## Command examples with extra options/flags\r\nUse light mode for white background and black text, instead of the default black background with white text:\r\n\r\n```console\r\n$ git-sim --light-mode status\r\n```\r\n\r\nAnimate the simulated output as a .mp4 video file:\r\n\r\n```console\r\n$ git-sim --animate add filename.ext\r\n```\r\n\r\nAdd an intro and outro with custom text and logo (must include `--animate`):\r\n\r\n```console\r\n$ git-sim --animate --show-intro --show-outro --outro-top-text=\"My Git Repo\" --outro-bottom-text=\"Thanks for watching!\" --logo=path/to/logo.png status\r\n```\r\n\r\nCustomize the output image/video directory location:\r\n\r\n```console\r\n$ git-sim --media-dir=path/to/output status\r\n```\r\n\r\nOptionally, set the environment variable `git_sim_media_dir` to set a global default media directory, to be used if no `--media-dir` is provided. Simulated output images/videos will be placed in this location, in subfolders named with the corresponding repo's name.\r\n\r\n```console\r\n$ export git_sim_media_dir=path/to/media/directory\r\n$ git-sim status\r\n```\r\nNote: `--media-dir` takes precedence over the environment variable. If you set the environment variable and still provide the argument, you'll find the media in the path provided by `--media-dir`.\r\n\r\nGenerate output video in low quality to speed up rendering time (useful for repeated testing, must include `--animate`):\r\n\r\n```console\r\n$ git-sim --animate --low-quality status\r\n```\r\n\r\n## Installation\r\nSee **Quickstart** section for details on installing manim and other dependencies. Then run:\r\n\r\n```console\r\n$ pip3 install git-sim\r\n```\r\n\r\n## Docker installation\r\n\r\n1) Clone down the git-sim repository:\r\n\r\n```console\r\n$ git clone https://github.com/initialcommit-com/git-sim.git\r\n```\r\n\r\n2) Browse into the `git-sim` folder and build the Docker image:\r\n\r\n```console\r\n$ docker build -t git-sim .\r\n```\r\n\r\n3) Run git-sim commands as follows:\r\n - Windows: `docker run --rm -v %cd%:/usr/src/git-sim git-sim [global options] <subcommand> [subcommand options]`\r\n - MacOS / Linux: `docker run --rm -v $(pwd):/usr/src/git-sim git-sim [global options] <subcommand> [subcommand options]`\r\n \r\nOptional: On MacOS / Linux / or GitBash in Windows, create an alias for the long docker command so your can run it as a normal `git-sim` command. To do so add the following line to your `.bashrc` or equivalent, then restart your terminal:\r\n\r\n```bash\r\ngit-sim() { docker run --rm -v $(pwd):/usr/src/git-sim git-sim \"$@\"; }\r\n```\r\n\r\nThis will enable you to run git-sim subcommands as [described above](#commands).\r\n\r\n## Learn More\r\nLearn more about this tool on the [git-sim project page](https://initialcommit.com/tools/git-sim).\r\n\r\n## Authors\r\n**Jacob Stopak** - on behalf of [Initial Commit](https://initialcommit.com)\r\n",
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