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documentation/poky-ref-manual/ref-variables.xml: Added CONFFILES and FILES

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Added a new glossary entry fro CONFFILES and I updated the existing
description for FILES.  These two variables are inter-twined.  FILES
was a one-liner and definitely needed expansion.

Reported-by: Paul Eggleton <paul.eggleton@linux.intel.com>
(From yocto-docs rev: 6788128c459ccf04f932c2273aca1e6b88f0def0)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark
2012-02-01 11:52:47 -06:00
committed by Richard Purdie
parent 739dad2f19
commit 2e5e02a905
1 changed files with 80 additions and 1 deletions
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documentation/poky-ref-manual/ref-variables.xml
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@@ -224,6 +224,56 @@
</glossdef> </glossdef>
</glossentry> </glossentry>
<glossentry id='var-CONFFILES'><glossterm>CONFFILES</glossterm>
<glossdef>
<para>
Identifies editable or configurable files that are part of a package.
If the Package Management System (PMS) is updating packages as part of
the final image packaging, it is possible that files you want unchanged
get overwritten.
In other words, editable files might exist in the package that you do not
want reset as part of the package update process.
You can use the <filename>CONFFILES</filename> variable to list the files in the
package that wish to prevent PMS from overwriting during this update process.
The <filename>CONFFILES</filename> variable essentially tells the PMS about
files in the package that you do not want updated as part of the package
update process.
</para>
<para>
To use the <filename>CONFFILES</filename> variable, provide a package name
override that identifies the package.
Then, provide a list of space-separated files or paths that identify the
editable files you want the PMS to exclude from the update process.
Here is an example:
<literallayout class='monospaced'>
CONFFILES_${PN} += "/dir1/" "dir2/" "file1" "file2"
</literallayout>
</para>
<para>
A relationship exists between the <filename>CONFFILES</filename> and
<filename><link linkend='var-FILES'>FILES</link></filename> variables.
The files listed with <filename>CONFFILES</filename> must be a subset of
the files listed with <filename>FILES</filename>.
Because the files you provide with <filename>CONFFILES</filename> are simply
being identified so that the PMS will not overwrite them, it makes sense that
the files must already be included as part of the package through the
<filename>FILES</filename> variable.
</para>
<note>
When specifying paths as part of the <filename>CONFFILES</filename> variable,
it is good practice to use the base, architecture-dependant, and
architecture-independant variables in the pathnames
rather than hard-coding the pathnames.
You can find a list of these variables at the top of the
<filename>/meta/conf/bitbake.conf</filename> file in the Yocto Project
files directory.
</note>
</glossdef>
</glossentry>
<glossentry id='var-CONFIG_SITE'><glossterm>CONFIG_SITE</glossterm> <glossentry id='var-CONFIG_SITE'><glossterm>CONFIG_SITE</glossterm>
<glossdef> <glossdef>
<para> <para>
@@ -484,7 +534,36 @@
<glossentry id='var-FILES'><glossterm>FILES</glossterm> <glossentry id='var-FILES'><glossterm>FILES</glossterm>
<glossdef> <glossdef>
<para>The list of directories or files that are placed in packages.</para> <para>
The list of directories or files that are placed in packages.
If some of these files are editable and you know they should not be
overwritten during the package update process by the Package Management
System (PMS), you can identify these files so that the PMS will not
overwrite them.
See the <filename><link linkend='var-CONFFILES'>CONFFILES</link></filename>
variable for information on how to identify these files to the PMS.
</para>
<para>
To use the <filename>FILES</filename> variable, provide a package name
override that identifies the package.
Then, provide a list of space-separated files or paths that identify the
files you want included as part of the package.
Here is an example:
<literallayout class='monospaced'>
FILES_${PN} += "/dir1/" "dir2/" "file1" "file2"
</literallayout>
</para>
<note>
When specifying paths as part of the <filename>FILES</filename> variable,
it is good practice to use the base, architecture-dependant, and
architecture-independant variables in the pathnames
rather than hard-coding the pathnames.
You can find a list of these variables at the top of the
<filename>/meta/conf/bitbake.conf</filename> file in the Yocto Project
files directory.
</note>
</glossdef> </glossdef>
</glossentry> </glossentry>