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From: "Chuck Wolber" <chuckwolber@gmail.com>
Date: Wed, 5 May 2021 17:41:53 -0700
Message-ID: <CAB=6tBTGiMBH+g-uy3sr1jKA-j1EkSDt0B+8DLb4_iMSaMax6Q@mail.gmail.com>
Subject: Recipe Grep'ing
To: Yocto-mailing-list <yocto@yoctoproject.org>
Content-Type: multipart/alternative; boundary="00000000000090e72405c19e9462"

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I was pondering putting some work in to a fairly large patch set aimed at
making recipes easier to grep through, and wanted to get some feedback
before I put time and effort into it.

I have often found that the following pattern cleanly describes the "what"
and the "why" when grep'ing through recipes to search for things:

FOO += "item1"
FOO += "item2"

Whereas this pattern gives us the "what", but not the "why":

FOO = "item1 \
             item2 \
            "

After discussing this with Richard Purdie on IRC, I also understand that
the latter pattern benefits some forms of build output. In addition, for
SRC_URI, the "why" is normally fairly obvious from context clues.

So, is there any interest in accepting a patch set of that nature for Yocto
and OE repositories? If so, what variables and situations should be
considered "off limits" to a change like that?

..Ch:W..


-- 
*"Perfection must be reached by degrees; she requires the slow hand of
time." - Voltaire*

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<div dir=3D"ltr"><div>I was pondering putting some work in to a fairly larg=
e patch set aimed at making recipes easier to grep through, and wanted to g=
et some feedback before I put time and effort into it.<br></div><div><br>I =
have often found that the following pattern cleanly describes the &quot;wha=
t&quot; and the &quot;why&quot; when grep&#39;ing through recipes to search=
 for things:</div><div><br></div><div>FOO +=3D &quot;item1&quot;</div><div>=
FOO +=3D &quot;item2&quot;</div><div><br></div><div>Whereas this pattern gi=
ves us the &quot;what&quot;, but not the &quot;why&quot;:</div><div><br></d=
iv><div>FOO =3D &quot;item1 \</div><div>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 item2 \</div><div>=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 &quot;</div><div><br></=
div><div>After discussing this with Richard Purdie on IRC, I also understan=
d that the latter pattern benefits some forms of build output. In addition,=
 for SRC_URI, the &quot;why&quot; is normally fairly obvious from context c=
lues.<br></div><div><br></div><div>So, is there any interest in accepting a=
 patch set of that nature for Yocto and OE repositories? If so, what variab=
les and situations should be considered &quot;off limits&quot; to a change =
like that?</div><div><br></div><div>..Ch:W..<br></div><div><br></div><br>--=
 <br><div dir=3D"ltr" class=3D"gmail_signature" data-smartmail=3D"gmail_sig=
nature"><div dir=3D"ltr"><div><b><span style=3D"font-family:monospace">&quo=
t;Perfection must be reached by degrees; she requires the slow hand of time=
.&quot; - Voltaire</span></b></div></div></div></div>

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