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From: "Duy" <duy.dang.yw@renesas.com>
To: bitbake-devel@lists.openembedded.org
Subject: Re: Custom variable value: (OVERRIDES?)
Date: Fri, 03 Apr 2020 04:37:36 -0700	[thread overview]
Message-ID: <8546.1585913856048757685@lists.openembedded.org> (raw)
In-Reply-To: <6bce089d-050d-7c57-15ac-a182b548f694@faresoftware.it>

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Hi Mauro,

I assume that you are working with poky/meta layer.
You can use conditional function from oe.utils library like this:

YOUR_VAR = "${@oe.utils.conditional("VAR_NAME", "compare_value", "value_if_true", "value_if_false", d)}"

myrecipe.bbappend:
FILE_NAME = "${@oe.utils.conditional("MY_VAR", "white", "white.txt", "default.txt", d)}"
do_install_append() {
install -m 0644 ${FILE_NAME} ${D}/etc/value
}

local.conf:
MY_VAR = "white"

Another way is using in-line python conditional statement:
FILE_NAME = "${@'white.txt' if 'white' in d.getVar('MY_VAR') else 'default.txt'}"

If you want more than two values, consider using variable flag:
https://www.yoctoproject.org/docs/latest/bitbake-user-manual/bitbake-user-manual.html#variable-flag-syntax

Regards,
DD

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  reply	other threads:[~2020-04-03 11:37 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-02 15:34 Custom variable value: (OVERRIDES?) Mauro Ziliani
2020-04-03 11:37 ` Duy [this message]
2020-04-05  7:16 ` [bitbake-devel] " Richard Purdie

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