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\documentclass{ltxguidex}
\usepackage{fontspec}
\errorcontextlines=10
\usepackage{changelog}
\usepackage{changepage}
\newcommand{\cl}{\ctan{changelog}}
\newcommand{\keepachangelog}{\https{keepachangelog.com}}
% a list of colors; use \color{colorname}
\makeatletter
\newenvironment{colorlist}
{\begin{itemize}
\let\old@item\item
\renewcommand{\item}[1]{%
\old@item[\fcolorbox{black}{##1}{\vphantom{X}\hspace{1em}}]
\texttt{##1}
}
}
{\end{itemize}}
\makeatother
\makeatletter
\renewcommand{\SX@explpreset}{
language=[LaTeX]TeX,
numbers=none,
}
\makeatother
\setmainfont{Tiempos Text}
\usepackage{FiraSans}
\usepackage{FiraMono}
\lstset{basewidth=0.6em}
\NewDocumentEnvironment{ctandescription}{}
{\NewDocumentCommand{\pkg}{m}{\item[\ctan{##1}]}
\begin{description}}
{\end{description}}
\author{Rebecca Turner\thanks{Brandeis University; \email{rebeccaturner@brandeis.edu}}}
\title{The \cl\ Package}
\date{2019/04/15 2.0.0}
\begin{document}
\maketitle
\begin{abstract}
Changelogs are important. Unfortunately, there are few facilities
for typesetting changelogs in \LaTeX. \cl\ defines a |changelog|
environment to make changelogs simple and intuitive.
For rationale, read \keepachangelog.
\end{abstract}
\begin{note}
Browse the sources, contribute, or complain at \\
\https{github.com/9999years/latex-changelog}
\end{note}
\tableofcontents
\vfill
\pagebreak
\section{I don't want to read this documentation}
Perfectly understandable. \cl\ comes in a ``simple'' flavor:
\begin{LTXexample}
\begin{changelog}[author=Rebecca Turner, simple, sectioncmd=\section*]
\begin{version}[v=1.0.0, date=2018-12-28]
\item Cool features
\item Bug fixes
\end{version}
\shortversion{v=0.1.0, date=2018-10-25, changes=Initial beta}
\end{changelog}
\end{LTXexample}
And a more organized variant based on \keepachangelog:
\begin{LTXexample}
\begin{changelog}[author=Rebecca Turner, sectioncmd=\section*]
\begin{version}[v=1.0.0, date=2018-12-28]
\added
\item Cool features
\fixed
\item Bug fixes
\end{version}
\shortversion{v=0.1.0, date=2018-10-25, changes=Initial beta}
\end{changelog}
\end{LTXexample}
\section{Intro}
\subsection{Why?}
Read \href{https://olivierlacan.com/}{Olivier Lacan}'s lovely site
\keepachangelog. To excerpt:
\begin{adjustwidth}{1in}{1in}
\subsubsection{What is a changelog?}
A changelog is a file which contains a curated, chronologically
ordered list of notable changes for each version of a project.
\subsubsection{Why keep a changelog?}
To make it easier for users and contributors to see precisely what
notable changes have been made between each release (or version) of
the project.
\subsubsection{Who needs a changelog?}
People do. Whether consumers or developers, the end users of
software are human beings who care about what's in the software.
When the software changes, people want to know why and how.
\end{adjustwidth}
\subsection{The competition}
It's always good to know the competition. Unfortunately, there isn't much
here. Know of another package with similar functionality? Drop me a line or
open a pull request!
\begin{ctandescription}
\pkg{vhistory} provides a decent-looking changelog. However, it's
designed for short changes and provides a less-than-elegant
interface. Additionally, it's based on the \ctan{ltxtable}
package, meaning it makes restrictions on the contents of
version information and writes the table to a file.
\pkg{holtxdoc} has a decent changelog feature (via
Oberdiek's |History| and |Version| environments),
but \ctan{holtxdoc} ``contains some private macros and setup
for my needs. Thus do not use it.'' In addition, Oberdiek's
changelogs don't support multiple authors.
\pkg{gitlog} is an interesting idea, but \ctan{gitlog} ``is a
proof-of-concept release to allow users an early
evaluation\dots''
Also,
\href{https://keepachangelog.com/en/1.0.0/}{friends don't
let friends dump git logs into changelogs}.
\end{ctandescription}
\section{The \texttt{changelog} environment}
\begin{desc}
|\begin{changelog}[<options>]...\end{changelog}|
\end{desc}
Wraps |description| while providing the |version| environment and the
\cs{shortversion} command. In addition to the options shown below,
\meta{options} may contain any of the options for |version| as a form of
``partial application''; this may be useful if, for example, most of your
versions have the same author.
\begin{keys}
\key{section}[\bool][true]
Insert a \cs{section} before the changelog?
\key{sectioncmd}[\m{command}][\cs{section}]
Which sectioning command to use?
\key{title}[\m{txt}][Changelog]
What to title the changelog section?
\key{label}[\m{label}][sec:changelog]
What to \cs{label} the section?
\end{keys}
\begin{desc}
|\begin{version}[<options>]...\end{version}|
\end{desc}
Gives a single version; wraps |itemize|.
If the \option{date} option is absent, the date isn't printed.
If the \option{v}/\option{version} option is absent, the date is used in its
place.
If both \option{version} and \option{date} are absent, the version is shown
as \texttt{Unreleased} and \cs{today} is used for the date. \cs{today} isn't
ideal (which is to say, not
\href{https://en.wikipedia.org/wiki/ISO_8601}{\textsc{iso} 8601} compliant)
but it's well-known and easy to redefine.\footnote{Try the \ctan{datetime2}
package or
\href{https://tex.stackexchange.com/questions/152392/date-format-yyyy-mm-dd}{any
of the other solutions here.}}
\m{options} may include:
\begin{keys}
\key{version}[\m{version string}]
The version string for this version
\key{v}[\m{version string}]
An alias for \option{version}
\key{author}[\m{author(s)}]
The author(s) of this version
\key{date}[\m{date string}]
The date of this version's release
\key{yanked}[\bool][false]
Indicates that the release was revoked due to a ``serious bug or
security issue''; prints a visible notice next to the version number
\key{simple}[\bool][false]
Indicates this version isn't split up into \cs{added}, \cs{changed},
etc.\ categories; if this option is given, a |version| environment acts
like a plain |itemize|
\key{short}[\bool][false]
Renders a short version, like |\shortversion|'s \option{changes} option;
useful if you need to put verbatim material in the changes which would
otherwise cause an error due to being used in an argument.
\end{keys}
\begin{desc}
|\shortversion{<options>}|
\end{desc}
A short, one-line version. In addition to |version|'s options, the following
options are available for \cs{shortversion}:
\begin{keys}
\key{changes}[\m{change text}] The changes to display for this version
\end{keys}
\subsection{Helper commands}
The \cl\ package defines several ``helper commands.'' These commands
introduce a \textit{set} of changes within the version. There must be at
least one \cs{item} between one of these commands and the end of the
|version| environment.
Note that these commands are \emph{only} available when not using
the \option{simple} option!
\begin{desc}|\added|\end{desc}Introduces a list of \cs{item}s that represent added
features
\begin{desc}|\changed|\end{desc}Introduces a list of \cs{item}s that represent
changed features
\begin{desc}|\deprecated|\end{desc}Introduces a list of \cs{item}s that represent
deprecated features
\begin{desc}|\removed|\end{desc}Introduces a list of \cs{item}s that represent
features which have been removed
\begin{desc}|\fixed|\end{desc}Introduces a list of \cs{item}s that represent bug
fixes
\begin{desc}|\security|\end{desc}Introduces a list of \cs{item}s that represent
security-fixes and closed security holes
\subsection{Customization}
The |changelog| environment wraps |changelogdescription| (which is
defined by default to be just the |description| environment), and the
|version| environment wraps |changelogitemize|. One could customize
these in depth with \ctan{enumitem}, as in:
\begin{latexcode}
\usepackage{enumitem}
\renewenvironment{changelogitemize}
{\begin{itemize}[label=---]}
{\end{itemize}}
\end{latexcode}
\begin{desc}
|\changelogyanked|
\end{desc}
Prints the ``revoked release'' notice:
\changelogyanked. See:
\href{https://keepachangelog.com/en/1.0.0/#yanked}{yanked releases on
\texttt{keepachangelog.com}}.
\section{Changelog}
This is this package's actual changelog --- not an example!
\begin{changelog}[author=Rebecca Turner, section=false]
\begin{version}[v=2.0.0, date=2019-04-15]
\added
\item Better error handling; more informative messages for empty
\texttt{version} or \texttt{changelog} environments.
\item \option{short} option in versions.
\removed
\item Removed \texttt{color} package option.
\fixed
\item Added dependencies for \ctan{xparse} and \ctan{xkeyval}, which had
erroneously been excluded from the package.
\end{version}
\begin{version}[v=1.0.0, date=2018-12-28]
\added
\item The ``simple'' option for changelogs which aren't split up
into sections of added, changed, removed, etc.\ features
\changed
\item Instead of commands like \cs{added} introducing an item, they
introduce a list of items; this is what \keepachangelog\
actually intended; previous implementations were incorrect to
display an ``Added'' (or whatever) marker next to each item.
\end{version}
\shortversion{v=0.2.1, date=2018-10-26, changes=Documented \option{yanked}
option}
\shortversion{v=0.2.0, date=2018-10-26, changes=First stable release}
\shortversion{v=0.1.0, date=2018-10-25, changes=Initial beta}
\end{changelog}
\end{document}
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