2013-11-07 11:41:23 +01:00
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// -*- mode:doc; -*-
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// vim: set syntax=asciidoc:
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[[hooks]]
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Hooks available in the various build steps
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The generic infrastructure (and as a result also the derived autotools
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and cmake infrastructures) allow packages to specify hooks.
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These define further actions to perform after existing steps.
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Most hooks aren't really useful for generic packages, since the +.mk+
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file already has full control over the actions performed in each step
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of the package construction.
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The following hook points are available:
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* +LIBFOO_POST_DOWNLOAD_HOOKS+
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* +LIBFOO_POST_EXTRACT_HOOKS+
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* +LIBFOO_POST_RSYNC_HOOKS+
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* +LIBFOO_PRE_PATCH_HOOKS+
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* +LIBFOO_POST_PATCH_HOOKS+
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* +LIBFOO_PRE_CONFIGURE_HOOKS+
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* +LIBFOO_POST_CONFIGURE_HOOKS+
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* +LIBFOO_POST_BUILD_HOOKS+
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* +LIBFOO_POST_INSTALL_HOOKS+ (for host packages only)
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* +LIBFOO_POST_INSTALL_STAGING_HOOKS+ (for target packages only)
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* +LIBFOO_POST_INSTALL_TARGET_HOOKS+ (for target packages only)
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* +LIBFOO_POST_LEGAL_INFO_HOOKS+
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These variables are 'lists' of variable names containing actions to be
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performed at this hook point. This allows several hooks to be
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registered at a given hook point. Here is an example:
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----------------------
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define LIBFOO_POST_PATCH_FIXUP
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action1
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action2
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endef
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LIBFOO_POST_PATCH_HOOKS += LIBFOO_POST_PATCH_FIXUP
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----------------------
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2013-11-07 11:41:24 +01:00
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Using the +POST_RSYNC+ hook
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^^^^^^^^^^^^^^^^^^^^^^^^^^^
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The +POST_RSYNC+ hook is run only for packages that use a local source,
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either through the +local+ site method or the +OVERRIDE_SRCDIR+
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mechanism. In this case, package sources are copied using +rsync+ from
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the local location into the buildroot build directory. The +rsync+
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command does not copy all files from the source directory, though.
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Files belonging to a version control system, like the directories
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+.git+, +.hg+, etc. are not copied. For most packages this is
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sufficient, but a given package can perform additional actions using
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the +POST_RSYNC+ hook.
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In principle, the hook can contain any command you want. One specific
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use case, though, is the intentional copying of the version control
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directory using +rsync+. The +rsync+ command you use in the hook can, among
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others, use the following variables:
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* +$(SRCDIR)+: the path to the overridden source directory
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* +$(@D)+: the path to the build directory
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