[OE-core] [PATCH] base: Fix license checksum rebuild problems

[Christopher Larson]

On Mon, Jun 1, 2015 at 2:13 PM, Richard Purdie <
richard.purdie at linuxfoundation.org> wrote:

> "MACHINE=qemux86-64 bitbake init-ifupdown; MACHINE=genericx86-64 bitbake
> init-ifupdown"
> shows a rebuild when it would be expected. The reason is a
> LIC_FILES_CHKSUM which
> contains file://${WORKDIR}, an absolute path which doesn't exist in the
> first build
> but does in the second, causing a signature change and a rebuild.
>
> Fix the problem by ignoring any file:// url which resolves since TMPDIR for
> license file dependency purposes.
>
> Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
>
> diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
> index 99b512b..7093a19 100644
> --- a/meta/classes/base.bbclass
> +++ b/meta/classes/base.bbclass
> @@ -97,6 +97,7 @@ PATH_prepend = "${@extra_path_elements(d)}"
>  def get_lic_checksum_file_list(d):
>      filelist = []
>      lic_files = d.getVar("LIC_FILES_CHKSUM", True) or ''
> +    tmpdir = d.getVar("TMPDIR", True)
>
>      urls = lic_files.split()
>      for url in urls:
> @@ -105,6 +106,8 @@ def get_lic_checksum_file_list(d):
>          try:
>              path = bb.fetch.decodeurl(url)[2]
>              if path[0] == '/':
> +                if path.startswith(tmpdir):
> +                    continue
>

Hmm, this would probably never be a real issue, but this is using a string
startswith() without a path separator, meaning it’d match e.g.
/path/to/tmpfoo/ as well as /path/to/tmp/ :)
-- 
Christopher Larson
clarson at kergoth dot com
Founder - BitBake, OpenEmbedded, OpenZaurus
Maintainer - Tslib
Senior Software Engineer, Mentor Graphics
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