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packaging: consolidate CLI functionality into packaging.py...
packaging: consolidate CLI functionality into packaging.py Consolidating functionality for invoking code in the hgpackaging package through a single CLI entry point will make things simpler when we add more complexity to that package. For example, it will allow us to run things out of a virtualenv with third party packages. This commit consolidates functionality from the Inno and WiX build.py scripts into a new packaging.py script. That script simply creates a virtualenv and runs the CLI functionality in it. The new virtualenv is populated with jinja2 because I felt it easier to incorporate requirements file processing in this commit and we will soon use jinja2 in an upcoming commit. The unified CLI functionality will also make it easier to script other packaging workflows going forward. e.g. RPM, Debian, and macOS packaging. Differential Revision: https://phab.mercurial-scm.org/D7156
Gregory Szorc - - Load All Authors

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WiX Installer

The files in this directory are used to produce an MSI installer using the WiX Toolset (http://wixtoolset.org/).

The MSI installers require elevated (admin) privileges due to the installation of MSVC CRT libraries into the Windows system store. See the Inno Setup installers in the inno sibling directory for installers that do not have this requirement.

Requirements

Building the WiX installers requires a Windows machine. The following dependencies must be installed:

Building

The packaging.py script automates the process of producing an MSI installer. It manages fetching and configuring non-system dependencies (such as py2exe, gettext, and various Python packages).

The script requires an activated Visual C++ 2008 command prompt. A shortcut to such a prompt was installed with Microsoft Visual C++ Compiler for Python 2.7. From your Start Menu, look for Microsoft Visual C++ Compiler Package for Python 2.7 then launch either Visual C++ 2008 32-bit Command Prompt or Visual C++ 2008 64-bit Command Prompt.

From the prompt, change to the Mercurial source directory. e.g. cd c:\src\hg.

Next, invoke packaging.py to produce an MSI installer. You will need to supply the path to the Python interpreter to use.:

$ python3 contrib\packaging\packaging.py \
   wix --python c:\python27\python.exe

Note

The script validates that the Visual C++ environment is active and that the architecture of the specified Python interpreter matches the Visual C++ environment. An error is raised otherwise.

If everything runs as intended, dependencies will be fetched and configured into the build sub-directory, Mercurial will be built, and an installer placed in the dist sub-directory. The final line of output should print the name of the generated installer.

Additional options may be configured. Run packaging.py wix --help to see a list of program flags.

Relationship to TortoiseHG

TortoiseHG uses the WiX files in this directory.

The code for building TortoiseHG installers lives at https://bitbucket.org/tortoisehg/thg-winbuild and is maintained by Steve Borho (steve@borho.org).

When changing behavior of the WiX installer, be sure to notify the TortoiseHG Project of the changes so they have ample time provide feedback and react to those changes.