changelog-maker 
A git log to CHANGELOG.md tool
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Eh?
changelog-maker is a formalisation of the Node.js CHANGELOG.md entry process but flexible enough to be used on other repositories.
changelog-maker will look at the git log of the current directory, pulling entries since the last tag. Commits with just a version number in the summary are removed, as are commits prior to, and including summaries that say working on <version>
(this is an io.js / Node ism).
After collecting the list of commits, any that have PR-URL: <url>
in them are looked up on GitHub and the labels of the pull request are collected, specifically looking for labels that start with semver
(the assumption is that semver-minor
, semver-major
labels are used to indicate non-patch version bumps).
Finally, the list is formatted as Markdown and printed to stdout.
Each commit will come out something like this (on one line):
* [[`20f8e7f17a`](https://github.com/nodejs/io.js/commit/20f8e7f17a)] -
**test**: remove flaky test functionality (Rod Vagg)
[#812](https://github.com/nodejs/io.js/pull/812)
Note:
- When running
changelog-maker
on the command-line, the default GitHub repo is computed from the package.json
that exists on cwd
, otherwise fallback to nodejs/node
, you can change this by supplying the user/org as the first argument and project as the second. e.g changelog-maker joyent node
.
- Commit links will go to the assumed repo (default: nodejs/node)
- If a commit summary starts with a word, followed by a
:
, this is treated as a special label and rendered in bold
- Commits that have
semver*
labels on the pull request referred to in their PR-URL
have those labels printed out at the start of the summary, in bold, upper cased.
- Pull request URLs come from the
PR-URL
data, if it matches the assumed repo (default: nodejs/node) then just a #
followed by the number, if another repo then a full user/project#number
.
When printing to a console some special behaviours are invoked:
- Commits with a summary that starts with
doc:
are rendered in grey
- Commits that have a
semver*
label on the pull request referred to in their PR-URL
are rendered in bold green
Install
npm i changelog-maker -g
Usage
changelog-maker [--plaintext|p] [--markdown|md] [--sha] [--group|-g] [--reverse] [--find-matching-prs] [--commit-url=<url/with/{ref}>] [--start-ref=<ref>] [--end-ref=<ref>] [github-user[, github-project]]
github-user
and github-project
should point to the GitHub repository that can be used to find the PR-URL
data if just an issue number is provided and will also impact how the PR-URL issue numbers are displayed
--format
: dictates what formatting the output will have. Possible options are: simple
, markdown
, plaintext
, messageonly
and sha
. The default is to print a simple
output suitable for stdout.
simple
: don't print full markdown output, good for console printing without the additional fluff.
sha
: print only the 10-character truncated commit hashes.
plaintext
: a very simple form, without commit details, implies --group
.
markdown
: a Markdown formatted from, with links and proper escaping.
messageonly
: displays the commit message only, implies --group
--sha
: same as --format=sha
.
--plaintext
: same as --format=plaintext
.
--markdown
: same as --format=markdown
.
--messageonly
: same as --format=messageonly
.
--group
: reorder commits so that they are listed in groups where the xyz:
prefix of the commit message defines the group. Commits are listed in original order within group.
--reverse
: reverse the order of commits when printed, does not work with --reverse
--commit-url
: pass in a url template which will be used to generate commit URLs for a repository not hosted in Github. {ref}
is the placeholder that will be replaced with the commit, i.e. --commit-url=https://gitlab.com/myUser/myRepo/commit/{ref}
--start-ref=<ref>
: use the given git <ref>
as a starting point rather than the last tag. The <ref>
can be anything commit-ish including a commit sha, tag, branch name. If you specify a --start-ref
argument the commit log will not be pruned so that version commits and working on <version>
commits are left in the list.
--end-ref=<ref>
: use the given git <ref>
as a end-point rather than the now. The <ref>
can be anything commit-ish including a commit sha, tag, branch name.
--filter-release
: exclude Node-style release commits from the list. e.g. "Working on v1.0.0" or "2015-10-21 Version 2.0.0" and also "npm version X" style commits containing only an x.y.z
semver designator.
--find-matching-prs
: use the GitHub API to find the pull requests that match commits that don't have the PR-URL
metadata in their message text. Without metadata, it may be necessary to also pass the org/user and repo name on the commandline (as the github-user
and github-project
arguments as demonstrated above, it may also be necessary to use --find-matching-prs=true
in this case).
--quiet
or -q
: do not print to process.stdout
--all
or -a
: process all commits since beginning, instead of last tag.
--help
or -h
: show usage and help.
Development
Tests require GitHub authentication in order to fetch pull request metadata. ghauth will generate, store and load a personal access token in your local user configuration when changelog-maker is run during normal operation. To run the tests, you will need to ensure that you have a token in place. There are two ways to do this:
-
Run node ./changelog-maker.js -a
to cause changelog-maker to fetch metadata on a commit with a PR-URL
.
-
Manually generate a personal access token with public_repo
scope. Then create a config.json file:
{
"user": "MY_GITHUB_USERNAME",
"token": "MY_SECRET_TOKEN"
}
user
is your username, and token
is the token you generated above. The location of config.json
depends on the OS, please see https://github.com/LinusU/node-application-config#config-location
License
changelog-maker is Copyright (c) 2015 Rod Vagg @rvagg and licenced under the MIT licence. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE.md file for more details.