Package Kit: reduce identifer/base-url confusion

For historical reasons, the package kit has an "url" field that is not
actually meant to be used as an URL. Rename it in the API and user
facing output as "identifier" to make it clear what the file is used
for. This change preserves the "url" key in on-disk and online storage
(hpkr files, stored settings, etc) in an attempt to not break anything.

Fix one remaining misuse of the "url" field as an URL in
get_package_dependencies.

Add an unit test showing that BUrl does parse "tab" URIs properly (there
is just a protocol and a path segment).

Change-Id: I339ce526e5798d42d78ae650855d7e988dbb4a1a
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2542
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

HaikuDepot / PackageKit: Repositories 'Identifier' URL

Repositories are identified with a 'url' in the
remote 'repo.info' file. There is also a
'base url' which is the URL locally with which
the system is able to access the repository
data on. There is some confusion between these
two terms in the source. This change aims to
separate the two out and consistently name them.
The settings for the repository locally also was
not storing these values and that has been fixed.
Debug info about the repositories also did not
display the two urls consistently and will now
also do so. Finally, HaikuDepot now correlates
locally configured repositories with the data in
HaikuDepotServer using the identifier URL; this
makes the use of mirrors with HaikuDepot possible.

Fixes #13888
Change-Id: I66dfe589b05c24e1ab123a6945352e0f24b60bf1

Change repository directory layout

* Under the base URL there are supposed to be the repository files and a
subdirectory "packages".
* Fix the repository URL related confusion introduced earlier. The URL
in
the repository info (and thus in the repository file) is supposed to
be the base URL for the repository. It is not a (potentially)
different base URL for the package files. Package and repository
files were supposed to live in the same directory. Now, by requiring
the package files to live in a subdirectory -- which can also be a
symlink -- we gain some flexibility.
The URL in the repository config is usually the same as the in the
repository info, unless it refers to a mirror site. This allows for
mirrors to copy the original repository verbatim.
* Remove the PackageURL rule and introduce a DownloadPackage rule
instead. The URL for a package file cannot be computed in the jam
parsing phase anymore, as it contains the hash value of the package
list.
* BRepositoryConfig: Add PackagesURL() for convenience.

more work on package kit:
* rip BRepositoryHeader out of BRepositoryConfig and add support
for it to BRepositoryCache
* implement repository removal
* some minor cleanups


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40290 a95241bf-73f2-0310-859d-f6bbb57e9c96

Mostly style-related changes to package kit:
* drop 'Haiku' namespace
* rename 'Package' namespace to 'BPackageKit'
* renamed all public classes to begin with a 'B'
* renamed BPackageKit::Roster to BPackageKit::BPackageRoster to not
clash with the BRoster from the application kit.
* fix some instances of public headers including private ones

Some functional changes, too:
* JobQueue now removes and deletes dependants of failed jobs
automatically
* JobQueue supports waiting for jobs to become runnable
* added a couple of InitCheck() methods where they make sense
and invoke those in users of these classes



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40287 a95241bf-73f2-0310-859d-f6bbb57e9c96

* more work on the package kit, repositories can now be added and
refreshed


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40280 a95241bf-73f2-0310-859d-f6bbb57e9c96

* WIP-commit of the first parts of the package kit and the pkgman
(console-)tool


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40261 a95241bf-73f2-0310-859d-f6bbb57e9c96

Change repository directory layout

* Under the base URL there are supposed to be the repository files and a
subdirectory "packages".
* Fix the repository URL related confusion introduced earlier. The URL
in
the repository info (and thus in the repository file) is supposed to
be the base URL for the repository. It is not a (potentially)
different base URL for the package files. Package and repository
files were supposed to live in the same directory. Now, by requiring
the package files to live in a subdirectory -- which can also be a
symlink -- we gain some flexibility.
The URL in the repository config is usually the same as the in the
repository info, unless it refers to a mirror site. This allows for
mirrors to copy the original repository verbatim.
* Remove the PackageURL rule and introduce a DownloadPackage rule
instead. The URL for a package file cannot be computed in the jam
parsing phase anymore, as it contains the hash value of the package
list.
* BRepositoryConfig: Add PackagesURL() for convenience.

more work on package kit:
* rip BRepositoryHeader out of BRepositoryConfig and add support
for it to BRepositoryCache
* implement repository removal
* some minor cleanups


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40290 a95241bf-73f2-0310-859d-f6bbb57e9c96

Mostly style-related changes to package kit:
* drop 'Haiku' namespace
* rename 'Package' namespace to 'BPackageKit'
* renamed all public classes to begin with a 'B'
* renamed BPackageKit::Roster to BPackageKit::BPackageRoster to not
clash with the BRoster from the application kit.
* fix some instances of public headers including private ones

Some functional changes, too:
* JobQueue now removes and deletes dependants of failed jobs
automatically
* JobQueue supports waiting for jobs to become runnable
* added a couple of InitCheck() methods where they make sense
and invoke those in users of these classes



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40287 a95241bf-73f2-0310-859d-f6bbb57e9c96

* more work on the package kit, repositories can now be added and
refreshed


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40280 a95241bf-73f2-0310-859d-f6bbb57e9c96

* WIP-commit of the first parts of the package kit and the pkgman
(console-)tool


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40261 a95241bf-73f2-0310-859d-f6bbb57e9c96