[PATCH 01/10] build: Generate build hash

[Gedare Bloom]

On Wed, Feb 24, 2021 at 10:55 AM Gedare Bloom <gedare at rtems.org> wrote:
>
> On Wed, Feb 24, 2021 at 6:57 AM Sebastian Huber
> <sebastian.huber at embedded-brains.de> wrote:
> >
> > Update #4265.
> > ---
> >  wscript | 27 ++++++++++++++++++++++++++-
> >  1 file changed, 26 insertions(+), 1 deletion(-)
> >
> > diff --git a/wscript b/wscript
> > index 6626fafb74..83c7c446bb 100755
> > --- a/wscript
> > +++ b/wscript
> > @@ -1359,6 +1359,30 @@ def get_compiler(conf, cp, variant):
> >      return value
> >
> >
> > +def _generate_build_hash(conf):
> > +    import hashlib
> > +    import base64
> > +
> > +    build_hash = ""
> > +    for key in sorted(conf.env):
> > +        build_hash = build_hash + key + str(conf.env[key])
> > +    for discard in [
> > +        conf.env.PREFIX,
> > +        conf.bldnode.make_node(conf.env.VARIANT).abspath(),
> > +        conf.path.abspath(),
> > +    ]:
> > +        build_hash = build_hash.replace(discard, "")
> > +    state = hashlib.sha256()
> > +    state.update(build_hash.encode("utf-8"))
> > +    conf.define(
> > +        "RTEMS_BUILD_HASH",
> > +        base64.urlsafe_b64encode(state.digest()).decode("utf-8"),
> > +    )
> > +    conf.write_config_header(
> > +        conf.env.VARIANT + "/cpukit/include/rtems/build-hash.h"
>
> Is this injecting a file in the source tree?
>

Nevermind, it generates in the build tree.

> > +    )
> > +
> > +
> >  def configure_variant(conf, cp, bsp_map, path_list, top_group, variant):
> >      conf.msg("Configure board support package (BSP)", variant, color="YELLOW")
> >
> > @@ -1391,9 +1415,10 @@ def configure_variant(conf, cp, bsp_map, path_list, top_group, variant):
> >          conf.fatal("No such base BSP: '{}'".format(variant))
> >      bsp_item.configure(conf, cic)
> >
> > -    options = set([o[0].upper() for o in cp.items(variant)])
> > +    options = set(o[0].upper() for o in cp.items(variant))
> >      for o in options.difference(cic.options):
> >          conf.msg("Unknown configuration option", o.upper(), color="RED")
> > +    _generate_build_hash(conf)
> >
> >
> >  def check_forbidden_options(ctx, opts):
> > --
> > 2.26.2
> >
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> > devel at rtems.org
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