parse-changelog
Simple changelog parser, written in Rust.
Installation
CLI
From source
cargo +stable install parse-changelog
From prebuilt binaries
You can download prebuilt binaries from the Release page. Prebuilt binaries are available for macOS, Linux (gnu and musl), and Windows (static executable).
Example of script to download parse-changelog
# Get host target
host=$(rustc -Vv | grep host | sed 's/host: //')
# Download binary and install to $HOME/.cargo/bin
curl -LsSf https://github.com/taiki-e/parse-changelog/releases/latest/download/parse-changelog-$host.tar.gz | tar xzf - -C $HOME/.cargo/bin
Via Homebrew
You can install parse-changelog using Homebrew tap on macOS and Linux:
brew install taiki-e/tap/parse-changelog
Via Scoop (Windows)
You can install parse-changelog using Scoop:
scoop bucket add taiki-e https://github.com/taiki-e/scoop-bucket
scoop install parse-changelog
Via cargo-binstall
You can install parse-changelog using cargo-binstall:
cargo binstall parse-changelog
Via MPR (Debian/Ubuntu)
You can install parse-changelog from the MPR:
git clone 'https://mpr.makedeb.org/parse-changelog'
cd parse-changelog/
makedeb -si
Via Prebuilt-MPR
You can also install parse-changelog from the Prebuilt-MPR, which provides automatic upgrades directly via APT. First set up the Prebuilt-MPR on your system, and then run the following:
sudo apt install parse-changelog
Note: The MPR/Prebuilt-MPR packages are maintained by the community, not the maintainer of parse-changelog.
On GitHub Actions
You can use taiki-e/install-action to install prebuilt binaries on Linux, macOS, and Windows. This makes the installation faster and may avoid the impact of problems caused by upstream changes.
- uses: taiki-e/install-action@parse-changelog
Library
To use this crate as a library, add this to your Cargo.toml
:
[dependencies]
parse-changelog = { version = "0.4", default-features = false }
Note: When using this crate as a library, we recommend disabling the default features because the default features enable CLI-related dependencies and the library part of this crate does not use them.
Compiler support: requires rustc 1.56+
Usage (CLI)
parse-changelog
command parses changelog and returns a release note for the
specified version.
Click to show a complete list of options
$ parse-changelog --help
parse-changelog
Simple changelog parser, written in Rust.
Parses changelog and returns a release note for the specified version.
USAGE:
parse-changelog [OPTIONS] <PATH> [VERSION]
ARGS:
<PATH> Path to the changelog file (use '-' for standard input)
[VERSION] Specify version (by default, select the latest release)
OPTIONS:
-t, --title Returns title instead of notes
--json Returns JSON representation of all releases in changelog
--version-format <PATTERN> Specify version format
--prefix-format <PATTERN> Specify prefix format [aliases: prefix]
-h, --help Print help information
-V, --version Print version information
Example: Get Rust's release notes
Get the release note for version 1.46.0 from Rust's release notes:
curl -fsSL https://raw.githubusercontent.com/rust-lang/rust/master/RELEASES.md \
| parse-changelog - 1.46.0
Example: Get Cargo's changelog
In Cargo's changelog,
the title starts with "Cargo ", and the patch version is omitted. This is a
format parse-changelog
don't support by default, so use --prefix
and
--version-format
to specify a custom format. For example:
curl -fsSL https://raw.githubusercontent.com/rust-lang/cargo/master/CHANGELOG.md \
| parse-changelog --prefix 'Cargo ' --version-format '^[0-9]+\.[0-9]+$' - 1.50
--prefix
is the same as Parser::prefix_format
and --version-format
is
the same as Parser::version_format
. See documentation of those methods for
more information.
Example: Create a new GitHub release from changelog
With GitHub CLI:
tag=...
version=...
# Get notes for $version from CHANGELOG.md.
notes=$(parse-changelog CHANGELOG.md "$version")
# Create a new GitHub release with GitHub CLI.
gh release create "$tag" --title "$version" --notes "$notes"
See also create-gh-release-action.
Usage (Library)
let changelog = "\
## 0.1.2 - 2020-03-01
- Bug fixes.
## 0.1.1 - 2020-02-01
- Added `Foo`.
- Added `Bar`.
## 0.1.0 - 2020-01-01
Initial release
";
// Parse changelog.
let changelog = parse_changelog::parse(changelog).unwrap();
// Get the latest release.
assert_eq!(changelog[0].version, "0.1.2");
assert_eq!(changelog[0].title, "0.1.2 - 2020-03-01");
assert_eq!(changelog[0].notes, "- Bug fixes.");
// Get the specified release.
assert_eq!(changelog["0.1.0"].title, "0.1.0 - 2020-01-01");
assert_eq!(changelog["0.1.0"].notes, "Initial release");
assert_eq!(changelog["0.1.1"].title, "0.1.1 - 2020-02-01");
assert_eq!(
changelog["0.1.1"].notes,
"- Added `Foo`.\n\
- Added `Bar`."
);
See documentation for more information on
parse-changelog
as a library.
Supported Format
By default, this crate is intended to support markdown-based changelogs that have the title of each release starts with the version format based on Semantic Versioning. (e.g., Keep a Changelog's changelog format.)
Headings
The heading for each release must be Atx-style (1-6 #
) or
Setext-style (=
or -
in a line under text), and the heading levels
must match with other releases.
Atx-style headings:
# 0.1.0
## 0.1.0
Setext-style headings:
0.1.0
=====
0.1.0
-----
Titles
The title of each release must start with a text or a link text (text with
[
and ]
) that starts with a valid version format or
prefix format. For example:
# [0.2.0]
description...
# 0.1.0
description...
Prefixes
You can include characters before the version as prefix.
## Version 0.1.0
^^^^^^^^
By default only "v", "Version ", "Release ", and "" (no prefix) are allowed as prefixes.
To customize the prefix format, use the Parser::prefix_format
method (library) or --prefix-format
option (CLI).
Versions
## v0.1.0 -- 2020-01-01
^^^^^
The default version format is based on Semantic Versioning.
This is parsed by using the following regular expression:
^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)(-[0-9A-Za-z\.-]+)?(\+[0-9A-Za-z\.-]+)?$|^Unreleased$
Note: To get the 'Unreleased' section in the CLI, you need to explicitly specify 'Unreleased' as the version.
To customize the version format, use the Parser::version_format
method (library) or --version-format
option (CLI).
Suffixes
You can freely include characters after the version.
# 0.1.0 - 2020-01-01
^^^^^^^^^^^^^
Related Projects
- create-gh-release-action: GitHub Action for creating GitHub Releases based on changelog. (Using this crate for changelog parsing.)
License
Licensed under either of Apache License, Version 2.0 or MIT license at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.