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|
## Δ
A syntax-highlighter for git.
<table>
<tr>
<td>
<img width=518px style="border: 1px solid black"
src="https://user-images.githubusercontent.com/52205/60410484-8cbb5e00-9b96-11e9-9d56-bb84ac0bce82.png"
alt="image" />
</td>
<td>
<img width=500px style="border: 1px solid black"
src="https://user-images.githubusercontent.com/52205/60282969-230d2c80-98d6-11e9-8656-09073c8a0985.png"
alt="image" />
</td>
</tr>
<tr>
<td>
delta --dark (default)
</td>
<td>
delta --light --width=variable --highlight-removed
</td>
</tr>
</table>
## Usage
```
delta 0.1.0
Dan Davison <dandavison7@gmail.com>
A syntax-highlighter for git.
USAGE:
delta [FLAGS] [OPTIONS]
FLAGS:
--compare-themes Compare available syntax highlighting themes. To use this option, supply git diff output
to delta on standard input. For example: `git show --color=always | delta --compare-
themes`.
--dark Use colors appropriate for a dark terminal background. For more control, see --theme,
--plus-color, and --minus-color.
-h, --help Prints help information
--highlight-removed Apply syntax highlighting to removed lines. The default is to apply syntax highlighting
to unchanged and new lines only.
--light Use colors appropriate for a light terminal background. For more control, see --theme,
--plus-color, and --minus-color.
--list-languages List supported languages and associated file extensions.
--list-themes List available syntax highlighting themes.
-V, --version Prints version information
OPTIONS:
--minus-color <minus_color> The background color (RGB hex) to use for removed lines.
--plus-color <plus_color> The background color (RGB hex) to use for added lines.
--theme <theme> The syntax highlighting theme to use.
-w, --width <width> The width (in characters) of the background color highlighting. By default, the
width is the current terminal width. Use --width=variable to apply background
colors to the end of each line, without right padding to equal width.
```
## Installation
1. **Install the Rust development environment:**<br>
See https://www.rust-lang.org/tools/install.
2. **Clone this repo**<br>
3. **Build the executable:**<br>
```sh
cd delta
cargo build
```
This creates an executable inside the repo at `target/debug/delta`. Make sure this executable is found on your shell
`$PATH`.
For example, if `~/bin` is in your `$PATH`, then you could use a symlink:
```
cd ~/bin
ln -s /path/to/delta/target/debug/delta delta
```
Alternatively, you can ignore `$PATH` and use
`/path/to/delta/target/debug/delta` in the next step.
4. **Configure git to use delta:**<br>
(Note that delta defaults to a dark theme, so if you're using a light terminal background, you'll want to use `--light` or `--theme=<theme-name>`.)
Edit your `~/.gitconfig`:
```
[core]
pager = delta
```
Alternatively, run this command:
```
git config --global core.pager delta
```
You can pass arguments to delta in your `.gitconfig`. An example is
```
[core]
pager = delta --plus-color="#012800" --minus-color="#340001" --theme="base16-ocean.dark"
```
Please include the `=` characters; I'm not sure why yet, but they're necessary when writing a delta command line in `.gitconfig`!
All git commands that display diff output should now display syntax-highlighted output. For example:
- `git diff`
- `git show`
- `git log -p`
- `git stash show -p`
## 24 bit color
delta works best if your terminal application supports 24 bit colors. See https://gist.github.com/XVilka/8346728. For example, on macos, iTerm2 works but Terminal.app does not.
If you're using tmux, it's worth checking that 24 bit color is working correctly. For example, run a color test script like [this one](https://gist.githubusercontent.com/lifepillar/09a44b8cf0f9397465614e622979107f/raw/24-bit-color.sh), or the others listed at https://gist.github.com/XVilka/8346728. If you do not see smooth color gradients, see the discussion at [tmux#696](https://github.com/tmux/tmux/issues/696). The short version is you need something like this in your `~/.tmux.conf`:
```
set -ga terminal-overrides ",xterm-256color:Tc"
```
and you may then need to quit tmux completely for it to take effect.
## Credit
https://github.com/trishume/syntect<br>
https://github.com/sharkdp/bat<br>
https://github.com/so-fancy/diff-so-fancy
|
