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bitbake: bitbake-user-manual: Rewrite dependency dot file generation 

The package-depends.dot and pn-depends.dot files are inaccurate,
missing out key dependencies such those made via the [depends]
flags. As such they can be misleading to the user.

They mainly exist for historical reasons, coming from a time
before we had task based execution.

This commit removes the two dated file formats and replaces
them with a recipe-depends.dot which is a flattened version
of task-depends.dot.

The old format files are removed if present so that the user
can't get confused about why data might not match between files.

The code is also rewritten to use 'with f: f.write()' syntax as
is more commonly used now. Also update the docs to match the change.

(Bitbake rev: f82537d27f2a5bf9d576aa841593db9ec0985ea8)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark 2017-01-23 15:44:19 -08:00 committed by Richard Purdie
parent 254bfb1071
commit bcfb0da4fe
1 changed files with 10 additions and 5 deletions
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15
bitbake/doc/bitbake-user-manual/bitbake-user-manual-intro.xml
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@ -669,13 +669,18 @@
When you generate a dependency graph, BitBake writes three files
to the current working directory:
<itemizedlist>
<listitem><para><emphasis><filename>recipe-depends.dot</filename>:</emphasis>
Shows dependencies between recipes (a collapsed version of task-depends.dot).
<listitem><para>
<emphasis><filename>recipe-depends.dot</filename>:</emphasis>
Shows dependencies between recipes (i.e. a collapsed version of
<filename>task-depends.dot</filename>).
</para></listitem>
<listitem><para><emphasis><filename>task-depends.dot</filename>:</emphasis>
Shows dependencies between tasks. This matches bitbake's internal task execution list.
<listitem><para>
<emphasis><filename>task-depends.dot</filename>:</emphasis>
Shows dependencies between tasks.
These dependencies match BitBake's internal task execution list.
</para></listitem>
<listitem><para><emphasis><filename>pn-buildlist</filename>:</emphasis>
<listitem><para>
<emphasis><filename>pn-buildlist</filename>:</emphasis>
Shows a simple list of targets that are to be built.
</para></listitem>
</itemizedlist>