[Buildroot] [PATCH 0/6] core: look for package's hashes in versioned sub-directory

[Yann E. MORIN]

Hello All!

When we support two (or more) versions for a package (e.g. qt5base), and
those versions have different licensing terms but stored in the same
file (e.g. 'LICENSE'), we can't store the hashes for the license files
in the same .hash file, as all hashes for a file must match, which would
obviously not be the case here.

So, we've already started moving those hash files in a sub-directory
named after the version, but only for the license files hashes; the
hashes for the downloaded files were left in the main .hash file.

This is not so consistent; hashes for a version should be in the same
file.

This series allows that, by introducing a per-package variable that
contains the path to the license file, so that it can be used both by
the download and legal-info infras.

To be noted: for packages that already have a per-version hash file for
their licensing terms, but a common hash file for their downloads, we
have to carefully switch them over to a per-version hash file only,
while still ensuring that both download and license hashes are still
checked for at every point in the series.

If we were to move the download hashes before the download infra learns
to look into subdirs, the download hashes woudl not be checked for.
Conversely, if the download infra were to learn to look into subdirs
before the download hashes are moved to the per-version hash file, then
the download hashes would not be checked for either.

So we have to duplicate the download hashes, then teach the download
infra to look into per-version subdir, and finally remove the common
hash file.

Fortunately, only a few qt5 packages currently have both a per-version
hash file and a common hash file.

There are a few more packages for which we offer a version choice (not a
free-form), like gcc, gdb et al. For those, the licensing terms do not
change across those versions, so we do not need to have per-version hash
files. Ditto for those packages for which we offer a free-form version
option, like linux, uboot, barebox...


Regards,
Yann E. MORIN.


The following changes since commit d522be6e0bf2631e3c68298e810d5cb2eb7ebefe

  docs/website: update for 2018.08.1 (2018-10-07 11:46:29 +0200)


are available in the git repository at:

  git://git.buildroot.org/~ymorin/git/buildroot.git

for you to fetch changes up to e2b0c44702c93f2610f58c09fd8e1aeb41d594aa

  docs/manual: document location of hash files for multi-versions packages (2018-10-07 12:49:58 +0200)


----------------------------------------------------------------
Yann E. MORIN (6):
      core: add a variable that points to the package's hash file
      legal-info: use the per-package variable to get the hash file
      package/qt5: prepare for per-version hash files
      core/download: do not hard-code the path to hte package hash file
      package/qt5: drop unversioned hash files
      docs/manual: document location of hash files for multi-versions packages

 Makefile                                                 |  2 +-
 docs/manual/adding-packages-directory.txt                |  7 +++++++
 package/pkg-download.mk                                  |  2 +-
 package/pkg-generic.mk                                   |  8 +++++++-
 package/pkg-utils.mk                                     |  8 ++------
 package/qt5/qt5base/{ => 5.11.2}/qt5base.hash            |  3 ---
 package/qt5/qt5base/5.6.3/qt5base.hash                   |  3 +++
 package/qt5/qt5base/qt5base.hash                         | 16 ++--------------
 .../{ => 5.11.2}/qt5quickcontrols2.hash                  |  3 ---
 .../qt5/qt5quickcontrols2/5.6.3/qt5quickcontrols2.hash   |  3 +++
 package/qt5/qt5quickcontrols2/qt5quickcontrols2.hash     | 12 ++----------
 .../qt5/qt5virtualkeyboard/2.0/qt5virtualkeyboard.hash   |  3 +++
 .../{ => 5.11.2}/qt5virtualkeyboard.hash                 |  3 ---
 package/qt5/qt5virtualkeyboard/qt5virtualkeyboard.hash   | 14 ++------------
 14 files changed, 33 insertions(+), 54 deletions(-)
 copy package/qt5/qt5base/{ => 5.11.2}/qt5base.hash (79%)
 copy package/qt5/qt5quickcontrols2/{ => 5.11.2}/qt5quickcontrols2.hash (68%)
 copy package/qt5/qt5virtualkeyboard/{ => 5.11.2}/qt5virtualkeyboard.hash (77%)

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