git-blame.nvim

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Git Blame plugin for Neovim written in Lua

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- - config.lua
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  - init.lua
  - utils.lua
- - init.lua
  - LICENSE
  - README.md
- gitblame.lua
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// repository documentation

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# git-blame.nvim

A git blame plugin for Neovim written in Lua

## Table of Contents

- [Installation](#installation)
- [Requirements](#requirements)
- [The Why](#the-why)
- [Demo](#demo)
- [Configuration](#configuration)
  - [Using Lua](#using-lua)
  - [Enabled](#enabled)
  - [Message template](#message-template)
  - [Date format](#date-format)
  - [Message when not committed yet](#message-when-not-committed-yet)
  - [Highlight group](#highlight-group)
  - [nvim_buf_set_extmark optional parameters](#nvim_buf_set_extmark-optional-parameters)
  - [Virtual text enabled](#virtual-text-enabled)
  - [Ignore by Filetype](#ignore-by-filetype)
  - [Visual delay for displaying the blame info](#visual-delay-for-displaying-the-blame-info)
  - [Start virtual text at column](#start-virtual-text-at-column)
  - [Better Performance](#better-performance)
  - [Use blame commit file URLs](#use-blame-commit-file-urls)
  - [Set displayed commit summary length](#set-displayed-commit-summary-length)
  - [Remote forge domains](#remote-forge-domains)
  - [Working with multiple remote names and forks](#multiple-remote-names)
- [Commands](#commands)
  - [Open the commit URL in browser](#open-the-commit-url-in-browser)
  - [Enable/Disable git blame messages](#enabledisable-git-blame-messages)
  - [Copy SHA hash](#copy-sha-hash)
  - [Copy Commit URL](#copy-commit-url)
  - [Open file URL in browser](#open-file-url-in-browser)
  - [Copy file URL](#copy-file-url)
- [Statusline integration](#statusline-integration)
- [Changing the timeago-format language](#changing-the-timeago-format-language)
- [Thanks To](#thanks-to)
- [Contributors <3](#contributors-3)
- [Support](#support)

## Installation

### Using [vim-plug](https://github.com/junegunn/vim-plug)

```vim
Plug 'f-person/git-blame.nvim'
```

## Requirements

* Neovim >= 0.5.0
* git

## The Why

There were several Vim plugins providing this functionality, but most of them
were written in VimScript and didn't work well for me. [coc-git](https://github.com/neoclide/coc-git)
also had option for showing blame info, it worked really well for me, I like it.
However, recently I decided to switch to Neovim's builtin LSP instead of using CoC
and having something running on Node.js just for git blame was not the best thing.

## Demo

![demo](https://raw.githubusercontent.com/f-person/git-blame.nvim/main/assets/demo.png)

## Configuration

### Using Lua

You can use `setup` to configure the plugin in Lua. This is the recommended way
if you're using Lua for your configs. Read the documentation below to learn
more about specific options (*NOTE:* options in the `setup` function don't
have the `gitblame_` prefix).

> **NOTE:** you don't have to call `setup` if you don't want to customize the
> default behavior.

```lua
require('gitblame').setup {
     --Note how the `gitblame_` prefix is omitted in `setup`
    enabled = false,
}
```

### Using lazy.nvim
```lua
return {
    "f-person/git-blame.nvim",
    -- load the plugin at startup
    event = "VeryLazy",
    -- Because of the keys part, you will be lazy loading this plugin.
    -- The plugin will only load once one of the keys is used.
    -- If you want to load the plugin at startup, add something like event = "VeryLazy",
    -- or lazy = false. One of both options will work.
    opts = {
        -- your configuration comes here
        -- for example
        enabled = true,  -- if you want to enable the plugin
        message_template = " <summary> • <date> • <author> • <<sha>>", -- template for the blame message, check the Message template section for more options
        date_format = "%m-%d-%Y %H:%M:%S", -- template for the date, check Date format section for more options
        virtual_text_column = 1,  -- virtual text start column, check Start virtual text at column section for more options
    },
 
}
```

### Enabled

Enables git-blame.nvim on Neovim startup.
You can toggle git blame messages on/off with the `:GitBlameToggle` command.

Default: `1`

```vim
let g:gitblame_enabled = 0
```

### Message template

The template for the blame message that will be shown.

Default: `'  <author> • <date> • <summary>'`

Available options: `<author>`, `<committer>`, `<date>`, `<committer-date>`,
`<summary>`, `<sha>`

```vim
let g:gitblame_message_template = '<summary> • <date> • <author>'
```

### Date format

The [format](https://www.lua.org/pil/22.1.html) of the date fields.

Default: `%c`

Available options:

```
%r  relative date (e.g., 3 days ago)
%a  abbreviated weekday name (e.g., Wed)
%A  full weekday name (e.g., Wednesday)
%b  abbreviated month name (e.g., Sep)
%B  full month name (e.g., September)
%c  date and time (e.g., 09/16/98 23:48:10)
%d  day of the month (16) [01-31]
%H  hour, using a 24-hour clock (23) [00-23]
%I  hour, using a 12-hour clock (11) [01-12]
%M  minute (48) [00-59]
%m  month (09) [01-12]
%p  either "am" or "pm" (pm)
%S  second (10) [00-61]
%w  weekday (3) [0-6 = Sunday-Saturday]
%x  date (e.g., 09/16/98)
%X  time (e.g., 23:48:10)
%Y  full year (1998)
%y  two-digit year (98) [00-99]
%%  the character `%´
```

```vim
let g:gitblame_date_format = '%r'
```

### Message when not committed yet

The blame message that will be shown when the current modification hasn't
been committed yet.

Supports the same template options as `g:gitblame_message_template`.

Default: `'  Not Committed Yet'`

```vim
let g:gitblame_message_when_not_committed = 'Oh please, commit this !'
```

### Highlight group

The highlight group for virtual text.

Default: `Comment`

```vim
let g:gitblame_highlight_group = "Question"
```

### `nvim_buf_set_extmark` optional parameters

`nvim_buf_set_extmark` is the function used for setting the virtual text.
You can view an up-to-date full list of options in the
[Neovim documentation](https://neovim.io/doc/user/api.html#nvim_buf_set_extmark()).

**Warning**: overwriting `id` and `virt_text` will break the plugin behavior.

```vim
let g:gitblame_set_extmark_options = {
    \ 'priority': 7,
    \ }
```

### Virtual text enabled

If the blame message should be displayed as virtual text.

You may want to disable this if you display the blame message in statusline.

Default: `1`

```vim
let g:gitblame_display_virtual_text = 0
```

### Ignore by Filetype

A list of filetypes for which gitblame information will not be displayed.

Default: `[]`

```vim
let g:gitblame_ignored_filetypes = ['lua', 'c']
```

### Visual delay for displaying the blame info

The delay in milliseconds after which the blame info will be displayed.

Note that this doesn't affect the performance of the plugin.

Default: `250`

```vim
let g:gitblame_delay = 1000 " 1 second
```

### Start virtual text at column

Have the blame message start at a given column instead of EOL. If the current
line is longer than the specified column value the blame message will default
to being displayed at EOL.

Default: `v:null`

```vim
let g:gitblame_virtual_text_column = 80
```

### Better Performance

If you are experiencing poor performance (e.g. in particularly large projects) you can use `CursorHold` and `CursorHoldI` instead of the default `CursorMoved` and `CursorMovedI` autocommands to limit the frequency of events being run.

`g:gitblame_schedule_event` is used for scheduling events. See [CursorMoved](https://neovim.io/doc/user/autocmd.html#CursorMoved) and [CursorHold](https://neovim.io/doc/user/autocmd.html#CursorHold).

Default: `CursorMoved`

options: `CursorMoved`|`CursorHold`

`g:gitblame_clear_event` is used for clearing virtual text. See [CursorMovedI](https://neovim.io/doc/user/autocmd.html#CursorMovedI) and [CursorHoldI](https://neovim.io/doc/user/autocmd.html#CursorHoldI).

Default: `CursorMovedI`

options: `CursorMovedI`|`CursorHoldI`

### Use blame commit file URLs

By default the commands `GitBlameOpenFileURL` and `GitBlameCopyFileURL` open the current file at latest branch commit. If you would like to open these files at the latest blame commit (in other words, the commit marked by the blame), set this to true. For ranges, the blame selected will be the most recent blame from the range.

Default: `false`

```lua
vim.g.gitblame_use_blame_commit_file_urls = true
```

### Configuring the clipboard register

By default the `:GitBlameCopySHA`, `:GitBlameCopyFileURL` and `:GitBlameCopyCommitURL` commands use the `+` register. Set this value if you would like to use a different register (such as `*`).

Default: `+`

```vim
let g:gitblame_clipboard_register = "*"
```

### Set displayed commit summary length

The maximum length of the commit summary shown in the blame message.
If the commit summary is longer than this value, it will be truncated.

Default: `0 (full length)`

```vim
let g:gitblame_max_commit_summary_length = 50
```

### Remote forge domains

A map of domain names to forge software. Set this so commit and file URLs are generated correctly for your self-hosted instances.

Currently supported software:

- `github`
- `gitlab`
- `sourcehut`
- `forgejo`
- `azure`
- `bitbucket`

```lua
vim.g.gitblame_remote_domains = {
    "git.sr.ht" = "sourcehut"
}
```

### Multiple remote names

If your project tracks multiple remote repositories you can change remote name to one you want to track.

Default: `origin`

```vim
let g:gitblame_remote_name = "upstream"
```

Tip: You can enable `.exrc` in your nvim config and set remote name per project.

## Commands

### Open the commit URL in browser

`:GitBlameOpenCommitURL` opens the commit URL of commit under the cursor.
Tested to work with GitHub and GitLab.

### Enable/Disable git blame messages

* `:GitBlameToggle` toggles git blame on/off,
* `:GitBlameEnable` enables git blame messages,
* `:GitBlameDisable` disables git blame messages.

### Copy SHA hash

`:GitBlameCopySHA` copies the SHA hash of current line's commit into
the system's clipboard.

### Copy Commit URL

`:GitBlameCopyCommitURL` copies the commit URL of current line's commit into
the system clipboard.

### Copy PR URL

`:GitBlameCopyPRURL` copies the pull request URL associated with the commit on the current line into the system clipboard. This command requires the GitHub CLI (`gh`) to be installed and authenticated.

### Open file URL in browser

`:GitBlameOpenFileURL` opens the file in the default browser.

The URL is scoped to the latest commit on the current branch and
has a mark of the current line. (same is true for `GitBlameCopyFileURL`)

### Copy file URL

`:GitBlameCopyFileURL` copies the file URL into the system clipboard.

## Statusline integration

The plugin provides you with two functions which you can incorporate into your
statusline of choice:

```lua
-- Lua
local git_blame = require('gitblame')

git_blame.is_blame_text_available() -- Returns a boolean value indicating whether blame message is available
git_blame.get_current_blame_text() --  Returns a string with blame message
```

Here is an example of integrating with [lualine.nvim](https://github.com/nvim-lualine/lualine.nvim):

```Lua
-- Lua
vim.g.gitblame_display_virtual_text = 0 -- Disable virtual text
local git_blame = require('gitblame')

require('lualine').setup({
    sections = {
            lualine_c = {
                { git_blame.get_current_blame_text, cond = git_blame.is_blame_text_available }
            }
    }
})
```

## Changing the timeago-format language

The plugin uses [lua-timeago](https://github.com/f-person/lua-timeago) for
displaying commit dates in a relative time ago format. Take a look at the
[languages](https://github.com/f-person/git-blame.nvim/tree/master/lua/lua-timeago/languages)
directory for a list of pre-installed languages. If you wish to use a language
that's not built into lua-timeago, you can
[do that](https://github.com/f-person/lua-timeago#language) too;
please consider opening a PR to lua-timeago if you choose to do so :)

To set a language, call the `set_language` method:

```lua
-- Lua
require('lua-timeago').set_language(require('lua-timeago/languages/hy'))
```

```vim
" Vimscript
:lua require('lua-timeago').set_language(require('lua-timeago/languages/hy'))
```

## Thanks To

* [coc-git](https://github.com/neoclide/coc-git) for some parts of code.
* [blamer.nvim](https://github.com/APZelos/blamer.nvim) for documentation inspiration.

## Contributors <3

[![](https://contrib.rocks/image?repo=f-person/git-blame.nvim)](https://github.com/f-person/git-blame.nvim/graphs/contributors)

Special kudos to [Sam Bossley](https://github.com/bossley9) for maintaining the plugin! <3

Made with [contrib.rocks](https://contrib.rocks).

## Support
If you enjoy the plugin and want to support what I do

git-blame.nvim

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