This is a follow-up to f98e83a17f.
See <https://lists.gnu.org/archive/html/guix-devel/2020-03/msg00095.html>.
Reported there by Vagrant Cascadian <vagrant@debian.org>.

* po/doc/local.mk (DOC_COOKBOOK_PO_FILES): Use correct file name.
(doc-po-update-cookbook-%): Use correct PO file name.

* doc/local.mk (info_TEXINFOS): Add guix-cookbook.de.texi.
(TRANSLATED_INFO): Add guix-cookbook.de.texi.
* po/doc/guix-cookbook.de.po: New file.
* po/doc/local.mk (DOC_COOKBOOK_PO_FILES): Add guix-cookbook.de.po.

I believe this change breaks guix pull:

  ./guix.es.texi:20971: @samp missing closing brace

This reverts commit d156e3fbcd.

* .gitignore: Update ignore list.
* Makefile.am (assert-no-store-file-names): Exclude the cookbook.
* bootstrap: Generate po files for cookbook translations.
* doc/guix-cookbook.texi: New file.
* doc/local.mk (info_TEXINFOS): Add it; add a rule to build cookbook
translations.
* po/doc/local.mk (DOC_COOKBOOK_PO_FILES): New variable.
(EXTRA_DIST): Add cookbook pot file and po files.
(doc-po-update-cookbook-%): New target.
(doc-pot-update): Also update cookbook pot file.
(doc-po-update): Also update cookbook po files.

This reverts commit d69bbd8c70.

This reverts commit 78b0f9419f.

* doc/local.mk (info_TEXINFOS): Add guix.ru.texi.
(TRANSLATED_INFO): Add {guix,contributing}.ru.texi.
* po/doc/local.mk (DOC_PO_FILES): Add guix-manual.ru.po.
* po/doc/guix-manual.ru.po: New file.

This reverts d3619b296f for
po/doc/guix-manual.zh_CN.po, which contained duplicate node names and
other errors.

* po/doc/guix-manual.es.po: Replace "@pref" with "@pxref".

That dependency was causing a failure when building from a fresh
checkout since commit d60225d5ca because
'guix-manual.pot' was no longer around and there's no rule to make it.

This commit replaces the 'guix-manual.%.po' target by a phony target,
'doc-po-update-%', without any dependency.

* po/doc/local.mk ($(srcdir)/po/doc/guix-manual.%.po): Rename to...
(doc-po-update-%): ... this.  Remove dependencies.
Change how 'lang' is computed; compute $output and $input, and replace
occurrences of $@ and $< with those.
(doc-po-update): Adjust accordingly.

This file was inadvertently committed in commit
39764ef893.

* po/doc/guix-manual.pot: Remove.

* po/doc/local.mk (doc-pot-update, doc-pot-update): Mark as phony.

* po/doc/guix-manual.zh_CN.po: Fix wrong include name.

Refer to the right version.*.texi to prevent errors in Makefile.am.

* doc/local.mk (info_TEXINFOS): Add guix.zh_CN.texi.
(TRANSLATED_INFO): Add guix.zh_CN.texi and contributing.zh_CN.texi.
* po/doc/local.mk (DOC_PO_FILES): Add guix-manual.zh_CN.po.
* doc/contributing.zh_CN.texi, doc/guix.zh_CN.texi: New files.

* po/doc/guix-manual.zh_CN.po: Replace "@def" with "@dfn".  Translate
the "contributing.texi" message ID.

* po/doc/guix-manual.zh_CN.po: New file.

* doc/local.mk (info_TEXINFOS): Add guix.es.texi.
(TRANSLATED_INFO): Add guix.es.texi and contributing.es.texi.
* po/doc/guix-manual.es.po: New file.
* po/doc/local.mk: Add guix-manual.es.po.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* Makefile.am: dist-hook depends on doc-po-update.
* po/doc/local.mk (doc-po-update): New target.

* doc/contributing.de.texi: New file.
* doc/guix.de.texi: New file
* doc/local.mk (TRANSLATED_INFO): Add them.
(info_TEXINFOS): Add guix.de.texi.
* po/doc/guix-manual.de.po: New file.
* po/doc/local.mk (EXTRA_DIST): Add it.
* doc/guix.texi: Document the German translation.