git_semver/
cli.rs

1use std::env;
2
3use anyhow::Result;
4use clap::Parser;
5use gix::commit::describe::SelectRef::AllTags;
6
7use crate::utils::parse_semver_tag;
8
9#[derive(Parser, Debug)]
10#[command(name = "git-semver")]
11#[command(version = env!("VERSION"))]
12#[command(about = "Parse and print semantic version info from a Git repository.")]
13pub struct Args {
14    #[arg(short('x'), long("major"), help = "Increment major version.")]
15    major: bool,
16
17    #[arg(short('y'), long("minor"), help = "Increment minor version.")]
18    minor: bool,
19
20    #[arg(short('z'), long("patch"), help = "Increment patch version.")]
21    patch: bool,
22}
23
24pub fn get_args() -> Result<Args> {
25    let args = Args::parse();
26    Ok(args)
27}
28
29pub fn run(args: Args) -> Result<()> {
30    let curdir = env::current_dir().expect("failed to fetch current directory");
31    let repo = gix::discover(curdir).expect("failed to locate git repo");
32    let mut latest_tag = repo.head_commit()?.describe().names(AllTags);
33    let mut version = parse_semver_tag(&latest_tag.format()?.to_string())?;
34
35    if args.major {
36        version = increment_major(version)
37    }
38    if args.minor {
39        version = increment_minor(version)
40    }
41    if args.patch {
42        version = increment_patch(version)
43    }
44
45    let major = version.major;
46    let minor = version.minor;
47    let patch = version.patch;
48
49    println!("v{major}.{minor}.{patch}");
50    Ok(())
51}
52
53fn increment_major(version: semver::Version) -> semver::Version {
54    let mut clone = version.clone();
55    clone.major += 1;
56    clone.minor = 0;
57    clone.patch = 0;
58    clone
59}
60
61fn increment_minor(version: semver::Version) -> semver::Version {
62    let mut clone = version.clone();
63    clone.minor += 1;
64    clone.patch = 0;
65    clone
66}
67
68fn increment_patch(version: semver::Version) -> semver::Version {
69    let mut clone = version.clone();
70    clone.patch += 1;
71    clone
72}
73
74#[cfg(test)]
75#[path = "cli_test.rs"]
76mod cli_test;