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https://github.com/blacknon/hwatch
A modern alternative to the watch command, records the differences in execution results and can check this differences at after.
https://github.com/blacknon/hwatch
command-line monitoring rust terminal-ui tui watch
Last synced: about 1 month ago
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A modern alternative to the watch command, records the differences in execution results and can check this differences at after.
- Host: GitHub
- URL: https://github.com/blacknon/hwatch
- Owner: blacknon
- License: mit
- Created: 2018-02-06T08:01:20.000Z (almost 7 years ago)
- Default Branch: master
- Last Pushed: 2024-10-20T15:55:37.000Z (about 2 months ago)
- Last Synced: 2024-10-20T18:06:00.841Z (about 2 months ago)
- Topics: command-line, monitoring, rust, terminal-ui, tui, watch
- Language: Rust
- Homepage:
- Size: 32.1 MB
- Stars: 771
- Watchers: 7
- Forks: 20
- Open Issues: 15
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
- awesome-ratatui - hwatch - Alternative watch command with command history and diffs. (💻 Apps / 🌌 Other)
README
hwatch
======
hwatch - alternative watch command.
## Description
`hwatch` is a alternative **watch** command.
That records the result of command execution and can display it history and diffs.
### Features
- Can keep the history when the difference, occurs and check it later.
- Can check the difference in the history. The display method can be changed in real time.
- Can output the execution result as log (json format).
- Custom keymaps are available.
- Support ANSI color code.
- Execution result can be scroll.
- Not only as a TUI application, but also to have the differences output as standard output.
- If a difference occurs, you can have the specified command additionally executed.
## Install
### macOS (brew)
brew install hwatch
### macOS (MacPorts)
sudo port install hwatch
### Arch Linux (AUR)
paru -S hwatch
### Cargo Install
cargo install hwatch
## Usage
### Command
$ hwatch --help
A modern alternative to the watch command, records the differences in execution results and can check this differences at after.
Usage: hwatch [OPTIONS] [command]...
Arguments:
[command]...
Options:
-b, --batch output exection results to stdout
-B, --beep beep if command has a change result
--border Surround each pane with a border frame
--with-scrollbar When the border option is enabled, display scrollbar on the right side of watch pane.
--mouse enable mouse wheel support. With this option, copying text with your terminal may be harder. Try holding the Shift key.
-c, --color interpret ANSI color and style sequences
-r, --reverse display text upside down.
-C, --compress Compress data in memory.
-t, --no-title hide the UI on start. Use `t` to toggle it.
-N, --line-number show line number
--no-help-banner hide the "Display help with h key" message
-x, --exec Run the command directly, not through the shell. Much like the `-x` option of the watch command.
-O, --diff-output-only Display only the lines with differences during `line` diff and `word` diff.
-A, --aftercommand Executes the specified command if the output changes. Information about changes is stored in json format in environment variable ${HWATCH_DATA}.
-l, --logfile [] logging file
-s, --shell shell to use at runtime. can also insert the command to the location specified by {COMMAND}. [default: "sh -c"]
-n, --interval seconds to wait between updates [default: 2]
-L, --limit Set the number of history records to keep. only work in watch mode. Set `0` for unlimited recording. (default: 5000) [default: 5000]
--tab-size Specifying tab display size [default: 4]
-d, --differences [] highlight changes between updates [possible values: none, watch, line, word]
-o, --output [] Select command output. [default: output] [possible values: output, stdout, stderr]
-K, --keymap Add keymap
-h, --help Print help
-V, --version Print version
### Keybind
Watch mode keybind(Default).
| Key | Action |
|--------------------------------------|-------------------------------------------------------------|
| ↑, ↓ | move selected screen(history/watch). |
| pageup, pagedn | move selected screen(history/watch). |
| home, end | move selected screen(history/watch). |
| Tab | toggle select screen(history/watch). |
| ← | select watch screen. |
| → | select history screen. |
| H | show help window. |
| B | toggle enable/disable border. |
| S | toggle enable/disable border scrollbar. |
| C | toggle color. |
| N | switch line number display. |
| R | toggle reverse mode. |
| M | toggle mouse support. |
| D | switch diff mode. |
| T | toggle the UI (history pane and header). |
| Backspace | toggle the history pane. |
| Q | exit hwatch. |
| 0 | disable diff. |
| 1 | switch watch type diff. |
| 2 | switch line type diff. |
| 3 | switch word type diff. |
| O | switch output mode(output->stdout->stderr). |
| Shift+O | show only lines with differences(line/word diff mode only). |
| Shift+S | show summary infomation in history. |
| F1 | only stdout print. |
| F2 | only stderr print. |
| F3 | print output. |
| + | increase interval. |
| - | decrease interval. |
| / | filter history by string. |
| * | filter history by regex. |
| Esc | unfiltering. |
| Ctrl+c | cancel. |
#### Custom keybind
Can customize key bindings by using the `-K` Option.
Write it in the format `keybind=funciton`.
```bash
hwatch -K ctrl-p=history_pane_up -K ctrl-n=history_pane_down command...
```
Keybind functions that can be specified are as follows.
| function | description |
|--------------------------|------------------------------------------|
| up | Move up |
| watch_pane_up | Move up in watch pane |
| history_pane_up | Move up in history pane |
| down | Move down |
| watch_pane_down | Move down in watch pane |
| history_pane_down | Move down in history pane |
| page_up | Move page up |
| watch_pane_page_up | Move page up in watch pane |
| history_pane_page_up | Move page up in history pane |
| page_down | Move page down |
| watch_pane_page_down | Move page down in watch pane |
| history_pane_page_down | Move page down in history pane |
| move_top | Move top |
| watch_pane_move_top | Move top in watch pane |
| history_pane_move_top | Move top in history pane |
| move_end | Move end |
| watch_pane_move_end | Move end in watch pane |
| history_pane_move_end | Move end in history pane |
| toggle_forcus | Toggle forcus window |
| forcus_watch_pane | Forcus watch pane |
| forcus_history_pane | Forcus history pane |
| quit | Quit hwatch |
| reset | filter reset |
| cancel | Cancel |
| help | Show and hide help window |
| toggle_color | Toggle enable/disable ANSI Color |
| toggle_line_number | Toggle enable/disable Line Number |
| toggle_reverse | Toggle enable/disable text reverse |
| toggle_mouse_support | Toggle enable/disable mouse support |
| toggle_view_pane_ui | Toggle view header/history pane |
| toggle_view_header_pane | Toggle view header pane |
| toggle_view_history_pane | Toggle view history pane |
| toggle_border | Toggle enable/disable border |
| toggle_scroll_bar | Toggle enable/disable scroll bar |
| toggle_diff_mode | Toggle diff mode |
| set_diff_mode_plane | Set diff mode plane |
| set_diff_mode_watch | Set diff mode watch |
| set_diff_mode_line | Set diff mode line |
| set_diff_mode_word | Set diff mode word |
| set_diff_only | Set diff line only (line/word diff only) |
| toggle_output_mode | Toggle output mode |
| set_output_mode_output | Set output mode output |
| set_output_mode_stdout | Set output mode stdout |
| set_output_mode_stderr | Set output mode stderr |
| togge_history_summary | Toggle history summary |
| interval_plus | Interval +0.5sec |
| interval_minus | Interval -0.5sec |
| change_filter_mode | Change filter mode |
| change_regex_filter_mode | Change regex filter mode |
## Configuration
If you always want to use some command-line options, you can set them in the
`HWATCH` environment variable. For example, if you use `bash`, you can add
the following to your `.bashrc`:
```bash
export HWATCH="--no-title --color --no-help-banner --border --with-scrollbar"
```
## Example
### interval 10 second
Use the -n option to specify the command execution interval.
```bash
hwatch -n 3 command...
```
### logging output
The command execution result can be output as a log in json format.
```bash
hwatch -n 3 -l hwatch_log.json command...
```
When you check the json log, you can easily check it by using [this script](https://gist.github.com/blacknon/551e52dce1651d2510162def5a0da1f0).
### Use shell function
If you want the shell function to be executed periodically, you can specify the shell command to be executed with -s as follows.
```bash
# bash
hwatch -n 3 -s 'bash -c "source ~/.bashrc"; {COMMAND}' command...
# zsh
hwatch -n 3 -s 'zsh -c "source ~/.zshrc"; {COMMAND}' command...
```
### ANSI Color code
If you want to see output colored with ANSI color code, enable color mode.
To enable color mode, run hwatch with the `-c` option.
Alternatively, you can enable / disable the color mode with the C key during execution.
```bash
hwatch -n 3 -c command...
```
### diff view
To enable color mode, run hwatch with the `-d` option.
There are several "diff modes" available.
Switching can be done with the D key.
```bash
hwatch -n 3 -d command...
```
#### watch diff
#### line diff
#### word diff
### history filtering
You can filter history as a string with / key and as a regular expression with * key.
### run batch mode
You can have command diffs output directly to stdout instead with `-b` option of getting them as a TUI app.
```bash
hwatch -b command...
```
## Alternatives
- The original [`watch`](https://man7.org/linux/man-pages/man1/watch.1.html);
the newest version seems to be distributed as a part of
[`procps`](https://gitlab.com/procps-ng/procps).
- [Viddy](https://github.com/sachaos/viddy).