mirror of
https://github.com/Llewellynvdm/starship.git
synced 2024-12-25 11:20:01 +00:00
feat: Add the git_metrics
module (#2827)
This PR adds a new module named git_metrics. It shows the added/deleted lines in the current git repository following the format: "[+$added_lines]($added_style) [-$deleted_lines]($deleted_style)".
This commit is contained in:
parent
9126d78d0e
commit
9f337d15e7
@ -194,6 +194,7 @@ $vcsh\
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$git_branch\
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$git_commit\
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$git_state\
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$git_metrics\
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$git_status\
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$hg_branch\
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$docker_context\
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@ -1232,6 +1233,48 @@ format = '[\($state( $progress_current of $progress_total)\)]($style) '
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cherry_pick = "[🍒 PICKING](bold red)"
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```
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## Git Metrics
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The `git_metrics` module will show the number of added and deleted lines in
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the current git repository.
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::: tip
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This module is disabled by default.
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To enable it, set `disabled` to `false` in your configuration file.
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:::
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### Options
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| Option | Default | Description |
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| ------------------------- | -------------------------------------------------------------------- | ---------------------------------------|
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| `added_style` | `"bold green"` | The style for the added count. |
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| `deleted_style` | `"bold red"` | The style for the deleted count. |
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| `format` | `'[+$added]($added_style) [-$deleted]($deleted_style) '` | The format for the module. |
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| `disabled` | `true` | Disables the `git_metrics` module. |
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### Variables
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| Variable | Example | Description |
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| ---------------- | ---------- | ----------------------------------- |
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| added | `1` | The current number of added lines |
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| deleted | `2` | The current number of deleted lines |
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| added_style\* | | Mirrors the value of option `added_style` |
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| deleted_style\* | | Mirrors the value of option `deleted_style` |
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\*: This variable can only be used as a part of a style string
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### Example
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```toml
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# ~/.config/starship.toml
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[git_metrics]
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added_style = "bold blue"
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format = '[+$added]($added_style)/[-$deleted]($deleted_style) '
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```
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## Git Status
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The `git_status` module shows symbols representing the state of the repo in your
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23
src/configs/git_metrics.rs
Normal file
23
src/configs/git_metrics.rs
Normal file
@ -0,0 +1,23 @@
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use crate::config::ModuleConfig;
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use serde::Serialize;
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use starship_module_config_derive::ModuleConfig;
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#[derive(Clone, ModuleConfig, Serialize)]
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pub struct GitMetricsConfig<'a> {
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pub added_style: &'a str,
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pub deleted_style: &'a str,
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pub format: &'a str,
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pub disabled: bool,
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}
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impl<'a> Default for GitMetricsConfig<'a> {
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fn default() -> Self {
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GitMetricsConfig {
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added_style: "bold green",
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deleted_style: "bold red",
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format: "[+$added]($added_style) [-$deleted]($deleted_style) ",
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disabled: true,
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}
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}
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}
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@ -23,6 +23,7 @@ pub mod erlang;
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pub mod gcloud;
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pub mod git_branch;
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pub mod git_commit;
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pub mod git_metrics;
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pub mod git_state;
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pub mod git_status;
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pub mod go;
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@ -95,6 +96,7 @@ pub struct FullConfig<'a> {
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gcloud: gcloud::GcloudConfig<'a>,
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git_branch: git_branch::GitBranchConfig<'a>,
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git_commit: git_commit::GitCommitConfig<'a>,
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git_metrics: git_metrics::GitMetricsConfig<'a>,
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git_state: git_state::GitStateConfig<'a>,
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git_status: git_status::GitStatusConfig<'a>,
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golang: go::GoConfig<'a>,
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@ -164,6 +166,7 @@ impl<'a> Default for FullConfig<'a> {
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gcloud: Default::default(),
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git_branch: Default::default(),
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git_commit: Default::default(),
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git_metrics: Default::default(),
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git_state: Default::default(),
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git_status: Default::default(),
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golang: Default::default(),
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@ -26,6 +26,7 @@ pub const PROMPT_ORDER: &[&str] = &[
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"git_branch",
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"git_commit",
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"git_state",
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"git_metrics",
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"git_status",
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"hg_branch",
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"docker_context",
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@ -28,6 +28,7 @@ pub const ALL_MODULES: &[&str] = &[
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"gcloud",
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"git_branch",
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"git_commit",
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"git_metrics",
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"git_state",
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"git_status",
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"golang",
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275
src/modules/git_metrics.rs
Normal file
275
src/modules/git_metrics.rs
Normal file
@ -0,0 +1,275 @@
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use regex::Regex;
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use crate::{
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config::RootModuleConfig, configs::git_metrics::GitMetricsConfig, formatter::StringFormatter,
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module::Module,
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};
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use super::Context;
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/// Creates a module with the current added/deleted lines in the git repository at the
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/// current directory
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pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
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let mut module = context.new_module("git_metrics");
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let config: GitMetricsConfig = GitMetricsConfig::try_load(module.config);
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// As we default to disabled=true, we have to check here after loading our config module,
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// before it was only checking against whatever is in the config starship.toml
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if config.disabled {
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return None;
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};
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let repo = context.get_repo().ok()?;
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let repo_root = repo.root.as_ref()?;
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let diff = context
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.exec_cmd(
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"git",
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&[
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"-C",
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&repo_root.to_string_lossy(),
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"--no-optional-locks",
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"diff",
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"--shortstat",
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],
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)?
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.stdout;
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let stats = GitDiff::parse(&diff);
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let parsed = StringFormatter::new(config.format).and_then(|formatter| {
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formatter
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.map_style(|variable| match variable {
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"added_style" => Some(Ok(config.added_style)),
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"deleted_style" => Some(Ok(config.deleted_style)),
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_ => None,
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})
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.map(|variable| match variable {
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"added" => Some(Ok(stats.added)),
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"deleted" => Some(Ok(stats.deleted)),
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_ => None,
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})
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.parse(None)
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});
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module.set_segments(match parsed {
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Ok(segments) => segments,
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Err(error) => {
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log::warn!("Error in module `git_metrics`:\n{}", error);
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return None;
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}
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});
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Some(module)
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}
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/// Represents the parsed output from a git diff.
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struct GitDiff<'a> {
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added: &'a str,
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deleted: &'a str,
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}
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impl<'a> GitDiff<'a> {
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/// Returns the first capture group given a regular expression and a string.
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/// If it fails to get the capture group it will return "0".
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fn get_matched_str(diff: &'a str, re: &Regex) -> &'a str {
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match re.captures(diff) {
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Some(caps) => caps.get(1).unwrap().as_str(),
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_ => "0",
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}
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}
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/// Parses the result of 'git diff --shortstat' as a `GitDiff` struct.
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pub fn parse(diff: &'a str) -> Self {
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let added_re = Regex::new(r"(\d+) \w+\(\+\)").unwrap();
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let deleted_re = Regex::new(r"(\d+) \w+\(\-\)").unwrap();
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Self {
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added: GitDiff::get_matched_str(diff, &added_re),
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deleted: GitDiff::get_matched_str(diff, &deleted_re),
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use std::ffi::OsStr;
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use std::fs::OpenOptions;
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use std::io::{self, Error, ErrorKind, Write};
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use std::path::{Path, PathBuf};
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use std::process::{Command, Stdio};
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use ansi_term::Color;
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use crate::test::ModuleRenderer;
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#[test]
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fn shows_nothing_on_empty_dir() -> io::Result<()> {
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let repo_dir = tempfile::tempdir()?;
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let path = repo_dir.path();
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let actual = render_metrics(path);
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let expected = None;
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assert_eq!(expected, actual);
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repo_dir.close()
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}
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#[test]
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fn shows_added_lines() -> io::Result<()> {
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let repo_dir = create_repo_with_commit()?;
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let path = repo_dir.path();
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let the_file = path.join("the_file");
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let mut the_file = OpenOptions::new().append(true).open(&the_file)?;
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writeln!(the_file, "Added line")?;
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the_file.sync_all()?;
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let actual = render_metrics(path);
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let expected = Some(format!(
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"{} {} ",
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Color::Green.bold().paint("+1"),
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Color::Red.bold().paint("-0")
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));
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assert_eq!(expected, actual);
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repo_dir.close()
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}
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#[test]
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fn shows_deleted_lines() -> io::Result<()> {
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let repo_dir = create_repo_with_commit()?;
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let path = repo_dir.path();
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let file_path = path.join("the_file");
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write_file(file_path, "First Line\nSecond Line")?;
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let actual = render_metrics(path);
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let expected = Some(format!(
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"{} {} ",
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Color::Green.bold().paint("+0"),
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Color::Red.bold().paint("-1")
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));
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assert_eq!(expected, actual);
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repo_dir.close()
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}
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#[test]
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fn shows_all_changes() -> io::Result<()> {
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let repo_dir = create_repo_with_commit()?;
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let path = repo_dir.path();
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let file_path = path.join("the_file");
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write_file(file_path, "\nSecond Line\n\nModified\nAdded")?;
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let actual = render_metrics(path);
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let expected = Some(format!(
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"{} {} ",
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Color::Green.bold().paint("+4"),
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Color::Red.bold().paint("-2")
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));
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assert_eq!(expected, actual);
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repo_dir.close()
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}
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fn render_metrics(path: &Path) -> Option<String> {
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ModuleRenderer::new("git_metrics")
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.config(toml::toml! {
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[git_metrics]
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disabled = false
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})
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.path(path)
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.collect()
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}
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fn run_git_cmd<A, S>(args: A, dir: Option<&Path>, should_succeed: bool) -> io::Result<()>
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where
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A: IntoIterator<Item = S>,
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S: AsRef<OsStr>,
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{
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let mut command = Command::new("git");
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command
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.args(args)
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.stdout(Stdio::null())
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.stderr(Stdio::null())
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.stdin(Stdio::null());
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if let Some(dir) = dir {
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command.current_dir(dir);
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}
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let status = command.status()?;
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if should_succeed && !status.success() {
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Err(Error::from(ErrorKind::Other))
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} else {
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Ok(())
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}
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}
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fn write_file(file: PathBuf, text: &str) -> io::Result<()> {
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let mut file = OpenOptions::new()
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.write(true)
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.create(true)
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.truncate(true)
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.open(&file)?;
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writeln!(file, "{}", text)?;
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file.sync_all()
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}
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fn create_repo_with_commit() -> io::Result<tempfile::TempDir> {
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let repo_dir = tempfile::tempdir()?;
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let path = repo_dir.path();
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let file = repo_dir.path().join("the_file");
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// Initialize a new git repo
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run_git_cmd(
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&[
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"init",
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"--quiet",
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path.to_str().expect("Path was not UTF-8"),
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],
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None,
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true,
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)?;
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// Set local author info
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run_git_cmd(
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&["config", "--local", "user.email", "starship@example.com"],
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Some(path),
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true,
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)?;
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run_git_cmd(
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&["config", "--local", "user.name", "starship"],
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Some(path),
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true,
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)?;
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// Ensure on the expected branch.
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// If build environment has `init.defaultBranch` global set
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// it will default to an unknown branch, so need to make & change branch
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run_git_cmd(
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&["checkout", "-b", "master"],
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Some(path),
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// command expected to fail if already on the expected branch
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false,
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)?;
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// Write a file on master and commit it
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write_file(file, "First Line\nSecond Line\nThird Line")?;
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run_git_cmd(&["add", "the_file"], Some(path), true)?;
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run_git_cmd(
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&["commit", "--message", "Commit A", "--no-gpg-sign"],
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Some(path),
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true,
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)?;
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Ok(repo_dir)
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}
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}
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@ -337,7 +337,7 @@ mod tests {
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// Ensure on the expected branch.
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// If build environment has `init.defaultBranch` global set
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// it will default to an unknown branch, so neeed to make & change branch
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// it will default to an unknown branch, so need to make & change branch
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run_git_cmd(
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&["checkout", "-b", "master"],
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Some(path),
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@ -18,6 +18,7 @@ mod erlang;
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mod gcloud;
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mod git_branch;
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mod git_commit;
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mod git_metrics;
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mod git_state;
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mod git_status;
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mod golang;
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@ -98,6 +99,7 @@ pub fn handle<'a>(module: &str, context: &'a Context) -> Option<Module<'a>> {
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"gcloud" => gcloud::module(context),
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"git_branch" => git_branch::module(context),
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"git_commit" => git_commit::module(context),
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"git_metrics" => git_metrics::module(context),
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"git_state" => git_state::module(context),
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"git_status" => git_status::module(context),
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"golang" => golang::module(context),
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@ -180,6 +182,7 @@ pub fn description(module: &str) -> &'static str {
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"gcloud" => "The current GCP client configuration",
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"git_branch" => "The active branch of the repo in your current directory",
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"git_commit" => "The active commit (and tag if any) of the repo in your current directory",
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"git_metrics" => "The currently added/deleted lines in your repo",
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"git_state" => "The current git operation, and it's progress",
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"git_status" => "Symbol representing the state of the repo",
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"golang" => "The currently installed version of Golang",
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|
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