PKGBUILD Git repository may need to be discovered

[mweinelt]

Example:
The Eiskalt DCPP client is a single PKGBUILD split into six subpackages.

• https://aur.archlinux.org/packages/eiskaltdcpp-qt-git/
• https://aur.archlinux.org/packages/eiskaltdcpp-gtk-git/
• https://aur.archlinux.org/packages/eiskaltdcpp-data-git/
• https://aur.archlinux.org/packages/eiskaltdcpp-daemon-git/
• https://aur.archlinux.org/packages/eiskaltdcpp-core-git/
• https://aur.archlinux.org/packages/eiskaltdcpp-cli-git/

The problem is that currently aurblobs will happily configure any of those packages and then during update it will choke because the git repository doesn't exist at the URL it thinks it does.

Traceback (most recent call last):
  File "/usr/lib/python3.5/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/var/lib/aurpkg/aurblobs/aurblobs/__main__.py", line 6, in <module>
    cli()
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/var/lib/aurpkg/aurblobs/aurblobs/cli.py", line 125, in update
    pkgcache=pkgcache
  File "/var/lib/aurpkg/aurblobs/aurblobs/package.py", line 90, in update
    head = str(pkgrepo.head.commit)
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/git/refs/symbolic.py", line 192, in _get_commit
    obj = self._get_object()
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/git/refs/symbolic.py", line 185, in _get_object
    return Object.new_from_sha(self.repo, hex_to_bin(self.dereference_recursive(self.repo, self.path)))
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/git/refs/symbolic.py", line 127, in dereference_recursive
    hexsha, ref_path = cls._get_ref_info(repo, ref_path)
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/git/refs/symbolic.py", line 176, in _get_ref_info
    return cls._get_ref_info_helper(repo, ref_path)
  File "/var/lib/aurpkg/.local/lib/python3.5/site-packages/git/refs/symbolic.py", line 159, in _get_ref_info_helper
    raise ValueError("Reference at %r does not exist" % ref_path)
ValueError: Reference at 'refs/heads/master' does not exist

The git repository uses the following name: https://aur.archlinux.org/eiskaltdcpp-git.git

Can we use one of these selectors to parse the information from the AUR package details page?

• CSS Selector: #pkginfo > tbody:nth-child(1) > tr:nth-child(1) > td:nth-child(2) > a:nth-child(1)
• CSS Path: html body div#content div#pkgdetails.box table#pkginfo tbody tr td a
• XPath: /html/body/div[2]/div[4]/table/tbody/tr[1]/td/a

Or is there a better way?

[fooker]

What about specifying the pkgbase instead of pkgname during aurblobs add. Using this one could use the git repo (https://aur.archlinux.org/${pkgbase}.git) to for checks?

[mweinelt]

We can get the pkgbase from the pkgname, and save the pkgbase (and tell the user about it). That would be my preferred way to handle this.