mirror of https://github.com/helix-editor/helix
docs: Auto generate command list
Gokul Soumya
3 years ago
committed by
Blaž Hrastnik
parent
9bdbafa075
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71292f9f11
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[alias]
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xtask = "run --package xtask --"
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# Commands
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Command mode can be activated by pressing `:`, similar to vim. Built-in commands:
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{{#include ./generated/typable-cmd.md}}
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| Name | Description |
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| --- | --- |
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| `:quit`, `:q` | Close the current view. |
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| `:quit!`, `:q!` | Close the current view forcefully (ignoring unsaved changes). |
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| `:open`, `:o` | Open a file from disk into the current view. |
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| `:buffer-close`, `:bc`, `:bclose` | Close the current buffer. |
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| `:buffer-close!`, `:bc!`, `:bclose!` | Close the current buffer forcefully (ignoring unsaved changes). |
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| `:write`, `:w` | Write changes to disk. Accepts an optional path (:write some/path.txt) |
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| `:new`, `:n` | Create a new scratch buffer. |
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| `:format`, `:fmt` | Format the file using the LSP formatter. |
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| `:indent-style` | Set the indentation style for editing. ('t' for tabs or 1-8 for number of spaces.) |
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| `:line-ending` | Set the document's default line ending. Options: crlf, lf, cr, ff, nel. |
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| `:earlier`, `:ear` | Jump back to an earlier point in edit history. Accepts a number of steps or a time span. |
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| `:later`, `:lat` | Jump to a later point in edit history. Accepts a number of steps or a time span. |
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| `:write-quit`, `:wq`, `:x` | Write changes to disk and close the current view. Accepts an optional path (:wq some/path.txt) |
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| `:write-quit!`, `:wq!`, `:x!` | Write changes to disk and close the current view forcefully. Accepts an optional path (:wq! some/path.txt) |
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| `:write-all`, `:wa` | Write changes from all views to disk. |
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| `:write-quit-all`, `:wqa`, `:xa` | Write changes from all views to disk and close all views. |
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| `:write-quit-all!`, `:wqa!`, `:xa!` | Write changes from all views to disk and close all views forcefully (ignoring unsaved changes). |
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| `:quit-all`, `:qa` | Close all views. |
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| `:quit-all!`, `:qa!` | Close all views forcefully (ignoring unsaved changes). |
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| `:cquit`, `:cq` | Quit with exit code (default 1). Accepts an optional integer exit code (:cq 2). |
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| `:theme` | Change the editor theme. |
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| `:clipboard-yank` | Yank main selection into system clipboard. |
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| `:clipboard-yank-join` | Yank joined selections into system clipboard. A separator can be provided as first argument. Default value is newline. |
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| `:primary-clipboard-yank` | Yank main selection into system primary clipboard. |
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| `:primary-clipboard-yank-join` | Yank joined selections into system primary clipboard. A separator can be provided as first argument. Default value is newline. |
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| `:clipboard-paste-after` | Paste system clipboard after selections. |
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| `:clipboard-paste-before` | Paste system clipboard before selections. |
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| `:clipboard-paste-replace` | Replace selections with content of system clipboard. |
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| `:primary-clipboard-paste-after` | Paste primary clipboard after selections. |
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| `:primary-clipboard-paste-before` | Paste primary clipboard before selections. |
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| `:primary-clipboard-paste-replace` | Replace selections with content of system primary clipboard. |
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| `:show-clipboard-provider` | Show clipboard provider name in status bar. |
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| `:change-current-directory`, `:cd` | Change the current working directory. |
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| `:show-directory`, `:pwd` | Show the current working directory. |
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| `:encoding` | Set encoding based on `https://encoding.spec.whatwg.org` |
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| `:reload` | Discard changes and reload from the source file. |
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| `:tree-sitter-scopes` | Display tree sitter scopes, primarily for theming and development. |
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| `:vsplit`, `:vs` | Open the file in a vertical split. |
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| `:hsplit`, `:hs`, `:sp` | Open the file in a horizontal split. |
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| `:tutor` | Open the tutorial. |
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| `:goto`, `:g` | Go to line number. |
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# Contributing
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Contributors are very welcome! **No contribution is too small and all contributions are valued.**
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Some suggestions to get started:
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- You can look at the [good first issue][good-first-issue] label on the issue tracker.
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- Help with packaging on various distributions needed!
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- To use print debugging to the [Helix log file][log-file], you must:
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* Print using `log::info!`, `warn!`, or `error!`. (`log::info!("helix!")`)
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* Pass the appropriate verbosity level option for the desired log level. (`hx -v <file>` for info, more `v`s for higher severity inclusive)
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- If your preferred language is missing, integrating a tree-sitter grammar for
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it and defining syntax highlight queries for it is straight forward and
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doesn't require much knowledge of the internals.
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We provide an [architecture.md][architecture.md] that should give you
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a good overview of the internals.
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# Auto generated documentation
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Some parts of [the book][docs] are autogenerated from the code itself,
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like the list of `:commands` and supported languages. To generate these
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files, run
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```shell
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cargo xtask bookgen
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```
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inside the project. We use [xtask][xtask] as an ad-hoc task runner and
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thus do not require any dependencies other than `cargo` (You don't have
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to `cargo install` anything either).
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[good-first-issue]: https://github.com/helix-editor/helix/labels/E-easy
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[log-file]: https://github.com/helix-editor/helix/wiki/FAQ#access-the-log-file
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[architecture.md]: ./architecture.md
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[docs]: https://docs.helix-editor.com/
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[xtask]: https://github.com/matklad/cargo-xtask
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[package]
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name = "xtask"
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version = "0.5.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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helix-term = { version = "0.5", path = "../helix-term" }
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use std::env;
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pub mod md_gen {
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use super::path;
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use std::fs;
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use helix_term::commands::cmd::TYPABLE_COMMAND_LIST;
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pub const TYPABLE_COMMANDS_MD_OUTPUT: &str = "typable-cmd.md";
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pub fn typable_commands() -> String {
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let mut md = String::new();
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md.push_str("| Name | Description |\n");
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md.push_str("| --- | --- |\n");
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let cmdify = |s: &str| format!("`:{}`", s);
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for cmd in TYPABLE_COMMAND_LIST {
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let names = std::iter::once(&cmd.name)
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.chain(cmd.aliases.iter())
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.map(|a| cmdify(a))
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.collect::<Vec<_>>()
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.join(", ");
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let entry = format!("| {} | {} |\n", names, cmd.doc);
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md.push_str(&entry);
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}
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md
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}
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pub fn write(filename: &str, data: &str) {
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let error = format!("Could not write to {}", filename);
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let path = path::book_gen().join(filename);
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fs::write(path, data).expect(&error);
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}
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}
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pub mod path {
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use std::path::{Path, PathBuf};
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pub fn project_root() -> PathBuf {
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Path::new(env!("CARGO_MANIFEST_DIR"))
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.parent()
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.unwrap()
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.to_path_buf()
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}
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pub fn book_gen() -> PathBuf {
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project_root().join("book/src/generated/")
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}
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}
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pub mod tasks {
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use super::md_gen;
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pub fn bookgen() {
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md_gen::write(
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md_gen::TYPABLE_COMMANDS_MD_OUTPUT,
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&md_gen::typable_commands(),
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);
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}
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pub fn print_help() {
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println!(
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"
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Usage: Run with `cargo xtask <task>`, eg. `cargo xtask bookgen`.
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Tasks:
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bookgen: Generate files to be included in the mdbook output.
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"
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);
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}
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}
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fn main() -> Result<(), String> {
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let task = env::args().nth(1);
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match task {
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None => tasks::print_help(),
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Some(t) => match t.as_str() {
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"bookgen" => tasks::bookgen(),
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invalid => return Err(format!("Invalid task name: {}", invalid)),
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},
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};
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Ok(())
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}
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