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ref-manual: Added and updated variables to support calling functions

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Fixed [YOCTO #7632]

Looked for, updated, and added (if necessary) the following
variables:

 * ROOTFS_PREPROCESS_COMMAND
 * ROOTFS_POSTPROCESS_COMMAND
 * SDK_POSTPROCESS_COMMAND
 * POPULATE_SDK_POST_TARGET_COMMAND
 * POPULATE_SDK_POST_HOST_COMMAND,
 * IMAGE_POSTPROCESS_COMMAND
 * IMAGE_PREPROCESS_COMMAND
 * ROOTFS_POSTUNINSTALL_COMMAND
 * ROOTFS_POSTINSTALL_COMMAND

Each of these variables no longer accepts arbitrary shell commands but
rather functions.  The wordings now support that behavior.

Also, updated the migration section for going to 1.6 release to note
this change.

(From yocto-docs rev: d52256cbf08a4d8968d68423138546fb33abbad6)

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
2015-05-05 12:57:00 -07:00
committed by Richard Purdie
parent fa9b57e6f5
commit be0ea1022d
2 changed files with 245 additions and 17 deletions
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29
documentation/ref-manual/migration.xml
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@@ -1413,6 +1413,35 @@
it encounters the variable.
</para>
</section>
<section id='migration-1.6-variable-changes-variable-entry-behavior'>
<title>Preprocess and Post Process Command Variable Behavior</title>
<para>
The following variables now expect a semicolon separated
list of functions to call and not arbitrary shell commands:
<literallayout class='monospaced'>
<link linkend='var-ROOTFS_PREPROCESS_COMMAND'>ROOTFS_PREPROCESS_COMMAND</link>
<link linkend='var-ROOTFS_POSTPROCESS_COMMAND'>ROOTFS_POSTPROCESS_COMMAND</link>
<link linkend='var-SDK_POSTPROCESS_COMMAND'>SDK_POSTPROCESS_COMMAND</link>
<link linkend='var-POPULATE_SDK_POST_TARGET_COMMAND'>POPULATE_SDK_POST_TARGET_COMMAND</link>
<link linkend='var-POPULATE_SDK_POST_HOST_COMMAND'>POPULATE_SDK_POST_HOST_COMMAND</link>
<link linkend='var-IMAGE_POSTPROCESS_COMMAND'>IMAGE_POSTPROCESS_COMMAND</link>
<link linkend='var-IMAGE_PREPROCESS_COMMAND'>IMAGE_PREPROCESS_COMMAND</link>
<link linkend='var-ROOTFS_POSTUNINSTALL_COMMAND'>ROOTFS_POSTUNINSTALL_COMMAND</link>
<link linkend='var-ROOTFS_POSTINSTALL_COMMAND'>ROOTFS_POSTINSTALL_COMMAND</link>
</literallayout>
For migration purposes, you can simply wrap shell commands in
a shell function and then call the function.
Here is an example:
<literallayout class='monospaced'>
my_postprocess_function() {
echo "hello" > ${IMAGE_ROOTFS}/hello.txt
}
ROOTFS_POSTPROCESS_COMMAND += "my_postprocess_function; "
</literallayout>
</para>
</section>
</section>
<section id='migration-1.6-directory-layout-changes'>