Move the dependencies listed in BASE_PKGS from projcts-dir.mk and topdir.mk into project.conf.
Due to various hen-and-egg problems on a minimal system, in some situations these packages can't be installed from project.conf. The same is true with BASE_PKGS, however, so remove it, at least that does away with some redundancy.
Add support for --syntax to BaseCmdPkgRelations.pkg_relations(), and default to 'semver', i.e. the current state of affairs. If that's changed to 'debian', relations declared in project.conf as
Don't prefix JW_PKG_PY_PROJECTS with time -p. A timing summary shows up in too many places unexpectedly, e.g. in the context of the target update-text-files. Add back later as more concrete demand comes up.
Make pkg-install-testbuild-deps an alias for pkg-install-release-deps. At this point, they do nearly the same thing, and the distinction between what the implementations should do are blurry at best. This commit removes redundancy but keeps the use cases distinct. Different implementations can be reinstantiated should requirements for different implementations become clearer later on.
Remove the sections pkg.requires.ubuntu|raspbian from project.conf, because their contents is present in pkg.requires.debian and is already evaluated by Ubuntu and Raspbian builds.
Remove dependency inkscape: It's needed by svg-to-pixmap.mk, but not for building jw-pkg. If anything, -devel should depend on it, but that seems a little heavy handed and can be achieved by packages which know that they include svg-to-pixmap.mk.
Add dependency cpio: Needed by pkg.sh to copy a the source file tree. Will be removed again as soon as pkg.sh goes Python.
The code below lib.distro, as left behind by the previous commit, is geared towards being directly used as a command-line API. This commit introduces the abstract base class Distro, a proxy for distribution-specific interactions. The proxy abstracts distro specifics into an API with proper method prototypes, not argparse.Namespace contents, and can thus be more easily driven by arbitrary code.
The Distro class is initialized with a member variable of type ExecContext, another new class introduced by this commit. It is designed to abstract the communication channel to the distribution instance. Currently only one specialization exists, Local, which interacts with the distribution and root file system it is running in, but is planned to be subclassed to support interaction via SSH, serial, chroot, or chains thereof.
PKG_FORMAT is now more straightforward to get with from the revised jw-pkg.py distro info --format '%{cascade}', so do that, and do it in the context where all the other variables are set from the output of that command.
To remove redundancy, get-os.sh needs to be retired in favor of pkg.py distro info. It's needed in platform.mk, but the only definiton of JW_PKG_PY is in projects.mk, so move it, along with the variables essential for the command:
include $(JWBDIR)/make/py-version.mk (defining PYTHON) JW_PKG_PY DEVELOPMENT VERSION_FILE
Currently git-get-% pulls into the master branch. Change that to pull into the branch currently checked out in the workspace, because that's the more likely use case if you want a quick update from somewhere.
"clone" in the Git sense means to copy a remote project over from scratch. pgit.sh clone has come from that, but has since evolved into something different, a mixture of clone, pull and fetch, so find a different name. "get" seems generic enough and doesn't clash with a Git meaning. Adapt variable names accordingly across the project.
git-pull-<username> doesn't use pgit.sh if username == login. pgit.sh should handle that case fine now, so remove the distinction from topdir.mk and make it in one place, i.e. pgit.sh. This has the additional advantage that pull as done by pgit.sh conveniently uses --autostash.
sudo is certainly not needed for the run package (which in itself is hardly useful at all), so move that dependency into the devel package. Same for gawk. /opt/jw-pkg/bin/get-os.sh depends on it, but I don't see where else but in a -devel context that would matter. And if it breaks something, it is going to be an easy fix without awk.
invocations. Those invocations typically happen in the context of pkg-%install, so add that target, specializing the pkg-% target.
The problem this solves is that /etc/profile is currently read only once before bootstrapping all software on a pristine system is started. This might lead to the situation that package A has installed environment variable definitions into /etc/profile.d, package B needs them for building, but never gets to read them.
To complement git-pull-maintainer with something more generic, also suitable for other SCMs, add the target pull-maintainer and make pkg-release-reinstall depend on it. Currently only visible in the context of pkg-% targets, scope might be expanded if need be.
Use pgit.sh to for the git-pull-% target. This should make git-pull-maintainer work. To limit the blast radius for now, only use it if the source user differs from the invoking user.
Multiple variables are redundantly defined both for a project and for the multiple-projects toplevel directory. Add a place to maintain them centrally, and add PGIT_SH as a first variable.
Add an init target. Use it if you want to tell the Makefile: _Just_ initalize the build machinery and nothing else, don't pull and build everything else you can. Not strictly necessary, most of the time pulling everything is what's wanted, and that does the init anyway.
The target pkg-delete-ours, invoked from the projects directory, should wipe all packages from the system which have been created and installed via jw-pkg.
Currently they are selected via url =~ janware. This is a default string which can be overridden by redefining JANWARE_PACKAGE_FILTER. This might not be the most generic name, but is kind of consistent and will be matched once all variables get renamed to a more generic naming scheme.
This currently does not get all packages: Some are not labeled with URLs matching "janware", because jw-pkg is only used as a convenient way to package other people's open source projects.
If VERSION_FILE is not found, trying to include makefile snippets triggers the attempt to regenerate it. This happened for installed Makefiles of jw-docker-images: It defines TOPDIR to /opt/jw-docker-images, projects.mk looks there, but the version file is installed under /usr/share/doc/packages/jw-docker-images/VERSION.
Allow VERSION_FILE to be overridden including code to keep that from happening.
make complains for plugins that soandso.dll has not been remade. The problem is that it tries to remake all targets of a multi-target. Split that up into two rules.
.cache-projects.mk is not installed / packaged, which makes builds against an installed jw-pkg considerably slower. Change that, at the risk of making the installed jw-pkg-devel less versatile. This commit installs a cache file cache-projects.mk, renamed from .cache-projects.mk, because there's no justification for hiding an installed makefile. At least I can't think of one.
There's pkg-manager-refresh already, so by adding pkg-manager-dup the distribution can be upgraded by distribution agnostic targets only through the Makefile. This might come in handy for CI, so add it.
--quote puts double quotation marks around the listed dependencies, protecting version requirements (>= 1.0) and parenthesis "perl(GD)" from the shell.
Retire pkg-manager.sh and replace it by the cleaner "jw-pkg.sh distro" command, essentially providing the same functionality and nearly the same command-line interface.
400 LOC more. That's what the move from a shell script to the more maintainable Python versions costs. Still a good idea, and the enhanced extensibility might pay off in terms of LOC with other shell scripts in the future.
