Difference between revisions of "Initializing Documentation Build Environment"

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(CMake: Mention ninja)
(Initializing Documentation Build Environment: Recommend out of tree build)
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==Initializing Documentation Build Environment==
 
==Initializing Documentation Build Environment==
After installing your [[Git|version control system]], cloning the repository, and installing a build tool like [[The_Make_Utility|make utility]] or [[Build Tools#Ninja|Ninja]], you should initialize the build environment.
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After installing your [[Git|version control system]] and installing a build tool like [[The_Make_Utility|make utility]] or [[Build Tools#Ninja|Ninja]], you should initialize the build environment.
  
 
;Attention: Since GnuCash 4.7 only [[CMake]]—which was introduced in GnuCash 3.0—is supported. Before the documentation supported also [[Autotools]]. See the [https://wiki.gnucash.org/wiki/index.php?title=Initializing_Documentation_Build_Environment&oldid=16246 archived version from 2020] in case you need that.
 
;Attention: Since GnuCash 4.7 only [[CMake]]—which was introduced in GnuCash 3.0—is supported. Before the documentation supported also [[Autotools]]. See the [https://wiki.gnucash.org/wiki/index.php?title=Initializing_Documentation_Build_Environment&oldid=16246 archived version from 2020] in case you need that.
 
:;Note:CMake offers the choice (<tt>-G</tt> like generator) between many [https://cmake.org/cmake/help/v3.17/manual/cmake-generators.7.html#manual:cmake-generators(7) different build tools] for the command line or [[:Category:IDE|IDE]]s. To keep it simple, we use <tt>make</tt> aka "Unix Makefiles" in the examples of this page.
 
:;Note:CMake offers the choice (<tt>-G</tt> like generator) between many [https://cmake.org/cmake/help/v3.17/manual/cmake-generators.7.html#manual:cmake-generators(7) different build tools] for the command line or [[:Category:IDE|IDE]]s. To keep it simple, we use <tt>make</tt> aka "Unix Makefiles" in the examples of this page.
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As mentioned in [[Documentation_Improvement#Initial_Steps]] we suggest starting contributors to use the following directory structure to work in:
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 +
<SyntaxHighlight lang="sh">
 +
<base>/
 +
    gnucash-docs/
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        src
 +
        build
 +
</SyntaxHighlight>
 +
 +
In this command <pre><base></pre> represents a starting directory in which you will group all your gnucash work. You're free to choose this as you see fit. The ''Documents'' directory in your user's home directory would be a good candidate, but any directory you see fit is fine. Just remember to replace <pre><base></pre> with the proper full directory path everywhere below.
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===Cloning the documentation repository===
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You'll need a local copy the source files for the documentation to work. These can be be downloaded from the internet via a tool called [[git]]. That process is commonly called '''cloning'''. You can find more background on cloning repositories in [[git]].
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 +
However of our purpose the following command will suffice to clone the documentation sources into the ''src'' directory <SyntaxHighlight lang="sh">git clone https://github.com/Gnucash/gnucash-docs <base>/gnucash-docs/src</SyntaxHighlight>
  
 
===Make a Build Directory Structure and the Makefiles===
 
===Make a Build Directory Structure and the Makefiles===
Create a ''build'' directory structure to keep the built documentation files separate from the repository directories. This page assumes the ''build'' directory is called '''build''' and is a subdirectory of the repository but that does not have to be so. It can be called whatever suits you, and even be wherever it suits you. Some people create it as a subdirectory to the source directory. Others have it in a completely different location, say to have all builds together under one directory. That is a matter of preference.
+
Create a ''build'' directory structure to keep the built documentation files separate from the repository directories. This page assumes the ''build'' directory is called '''build''' and is a sibling directory next to the repository directory but that does not have to be so. It can be called whatever suits you, and even be wherever it suits you. Some people create it as a subdirectory to the source directory. Others have it in a completely different location, say to have all builds together under one directory. That is a matter of preference.
 
<SyntaxHighlight lang="sh">
 
<SyntaxHighlight lang="sh">
cd /home/$USER/code/gnucash-docs
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cd <base>/gnucash-docs
 
mkdir build    # only needed if not previously created
 
mkdir build    # only needed if not previously created
 
cd build      # configure must be run from the "build" directory
 
cd build      # configure must be run from the "build" directory
 
</SyntaxHighlight>
 
</SyntaxHighlight>
 
====CMake====
 
====CMake====
If your build directory is a subdirectory of your repository
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If you followed our suggested directory layout
 
<SyntaxHighlight lang="sh">
 
<SyntaxHighlight lang="sh">
cmake -G"Unix Makefiles" [-DWITH_MOBI=On] ..
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cmake -G"Unix Makefiles" [-DWITH_MOBI=On] ../src
 
</SyntaxHighlight>
 
</SyntaxHighlight>
 
Otherwise (depending on where your repository is)
 
Otherwise (depending on where your repository is)
 
<SyntaxHighlight lang="sh">
 
<SyntaxHighlight lang="sh">
cmake -G"Unix Makefiles" [-DWITH_MOBI=On] /home/$USER/code/gnucash-docs
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cmake -G"Unix Makefiles" [-DWITH_MOBI=On] <path-to-your-source-repository>
 
</SyntaxHighlight> If you want to use the faster ninja replace <tt>-G"Unix Makefiles"</tt> by <tt>-GNinja</tt>. In later commands you will have to replace <tt>make</tt> then by <tt>ninja</tt>.
 
</SyntaxHighlight> If you want to use the faster ninja replace <tt>-G"Unix Makefiles"</tt> by <tt>-GNinja</tt>. In later commands you will have to replace <tt>make</tt> then by <tt>ninja</tt>.
  

Revision as of 21:02, 17 January 2022

This page describes the first setup of an build environment for the GnuCash documentation.

Initializing Documentation Build Environment

After installing your version control system and installing a build tool like make utility or Ninja, you should initialize the build environment.

Attention
Since GnuCash 4.7 only CMake—which was introduced in GnuCash 3.0—is supported. Before the documentation supported also Autotools. See the archived version from 2020 in case you need that.
Note
CMake offers the choice (-G like generator) between many different build tools for the command line or IDEs. To keep it simple, we use make aka "Unix Makefiles" in the examples of this page.

As mentioned in Documentation_Improvement#Initial_Steps we suggest starting contributors to use the following directory structure to work in:

<base>/
    gnucash-docs/
        src
        build
In this command
<base>
represents a starting directory in which you will group all your gnucash work. You're free to choose this as you see fit. The Documents directory in your user's home directory would be a good candidate, but any directory you see fit is fine. Just remember to replace
<base>
with the proper full directory path everywhere below.

Cloning the documentation repository

You'll need a local copy the source files for the documentation to work. These can be be downloaded from the internet via a tool called git. That process is commonly called cloning. You can find more background on cloning repositories in git.

However of our purpose the following command will suffice to clone the documentation sources into the src directory
git clone https://github.com/Gnucash/gnucash-docs <base>/gnucash-docs/src

Make a Build Directory Structure and the Makefiles

Create a build directory structure to keep the built documentation files separate from the repository directories. This page assumes the build directory is called build and is a sibling directory next to the repository directory but that does not have to be so. It can be called whatever suits you, and even be wherever it suits you. Some people create it as a subdirectory to the source directory. Others have it in a completely different location, say to have all builds together under one directory. That is a matter of preference.

cd <base>/gnucash-docs
mkdir build    # only needed if not previously created
cd build       # configure must be run from the "build" directory

CMake

If you followed our suggested directory layout

cmake -G"Unix Makefiles" [-DWITH_MOBI=On] ../src

Otherwise (depending on where your repository is)

cmake -G"Unix Makefiles" [-DWITH_MOBI=On] <path-to-your-source-repository>
If you want to use the faster ninja replace -G"Unix Makefiles" by -GNinja. In later commands you will have to replace make then by ninja.

The cmake command above will recreate the gnucash-docs directory structure under the current directory (build) but without the source files. It then checks whether it can find all the tools and libraries required for successfully generating the documentation and creates the required Makefiles to drive the build system. It can enable or disable certain options in the Makefiles based on its findings.

cmake can also take extra command line options that can alter what it will include in the Makefiles. They are passed in the form -D<option-name>=<option-value>. The most relevant ones for our documentation build system are:

WITH_GHELP
Enable build rules for gnome help document format (default value: ON)
WITH_HTML
Enable build rules for html document format (default value: ON)
WITH_PDF
Enable build rules for pdf document format (default value: ON)
WITH_EPUB
Enable build rules for epub document format (default value: ON)
WITH_CHM
Enable build rules for chm document format (Only available under Windows, default value: OFF)
WITH_MOBI
Enable build rules for Mobipocket document format (default value: OFF)
CMAKE_INSTALL_PREFIX
Defines the final location where the documentation will be installed (default value: /usr/local/bin).
If you intend to test invoking help from GnuCash programs, you should set this path now to save you from having to rerun cmake later. See Test Documentation in Linux.

cmake typically has to be run only once to set up your build environment. Rerunning it again later has no negative side-effect.

And you may want to rerun it to change one of the options mentioned above.
Note
cmake will emit errors if some of the build requirement are not met. You have to resolve these errors and rerun cmake before proceeding to the next step. In addition it may also issue WARNINGs, like the warning the fop is not found and that you will not be able to generate PDF files. Warnings suggest some parts are missing preventing some optional build steps from running. The pdf generation step is such an optional one. It's not required for editing the documentation, though a test build of PDFs should be performed and checked before pushing changes to code. See Other Documentation Formats section of the Documentation Release Process page for more information.