"make check-qapi-schema" takes around 10s user + system time for me.
With -j, it takes a bit over 3s real time. We have worse tests. It's
still annoying when you work on the QAPI generator.
Some 1.4s user + system time is consumed by make figuring out what to
do, measured by making a target that does nothing. There's nothing I
can do about that right now. But let's see what we can do about the
other 8s.
Almost 7s are spent running test-qapi.py for every test case, the rest
normalizing and diffing test-qapi.py output. We have 190 test cases.
If I downgrade to python2, it's 4.5s, but python2 is a goner.
Hacking up test-qapi.py to exit(0) without doing anything makes it
only marginally faster. The problem is Python startup overhead.
Our configure puts -B into $(PYTHON). Running without -B is faster:
4.4s.
We could improve the Makefile to run test cases only when the test
case or the generator changed. But I'm after improvement in the case
where the generator changed.
test-qapi.py is designed to be the simplest possible building block
for a shell script to do the complete job (it's actually a Makefile,
not a shell script; no real difference). Python is just not meant for
that. It's for bigger blocks.
Move the post-processing and diffing into test-qapi.py, and make it
capable of testing multiple schema files. Set executable bits while
there.
Running it once per test case now takes slightly longer than 8s. But
running it once for all of them takes under 0.2s.
Messing with the Makefile to run it only on the tests that need
retesting is clearly not worth the bother.
Expected error output changes because the new normalization strips off
$(SRCDIR)/tests/qapi-schema/ instead of just $(SRCDIR)/.
The .exit files go away, because there is no exit status to test
anymore.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20191018074345.24034-5-armbru@redhat.com>
Many error messages refer to the offending definition even though
they're preceded by an "in definition" line. Rephrase them.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190927134639.4284-22-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Starting error messages with a capital letter complicates things when
text can get interpolated both at the beginning and in the middle of
an error message. The next patch will do that. Switch to lower case
to keep it simpler.
For what it's worth, the GNU Coding Standards advise the message
"should not begin with a capital letter when it follows a program name
and/or file name, because that isn’t the beginning of a sentence. (The
sentence conceptually starts at the beginning of the line.)"
While there, avoid breaking lines containing multiple arguments in the
middle of an argument.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190927134639.4284-7-armbru@redhat.com>
We take pains to include the offending expression in error messages,
e.g.
tests/qapi-schema/alternate-any.json:2: alternate 'Alt' member 'one' cannot use type 'any'
But not always:
tests/qapi-schema/enum-if-invalid.json:2: 'if' condition must be a string or a list of strings
Instead of improving them one by one, report the offending expression
whenever it is known, like this:
tests/qapi-schema/enum-if-invalid.json: In enum 'TestIfEnum':
tests/qapi-schema/enum-if-invalid.json:2: 'if' condition must be a string or a list of strings
Error messages that mention the offending expression become a bit
redundant, e.g.
tests/qapi-schema/alternate-any.json: In alternate 'Alt':
tests/qapi-schema/alternate-any.json:2: alternate 'Alt' member 'one' cannot use type 'any'
I'll take care of that later in this series.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190927134639.4284-5-armbru@redhat.com>
This reverts commit 3313b61's changes to tests/qapi-schema/, except
for tests/qapi-schema/doc-*.
We could keep some of these doc comments to serve as positive test
cases. However, they don't actually add to what we get from doc
comment use in actual schemas, as we we don't test output matches
expectations, and don't systematically cover doc comment features.
Proper positive test coverage would be nice.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-4-git-send-email-armbru@redhat.com>
As the name suggests, the qapi2texi script converts JSON QAPI
description into a texi file suitable for different target
formats (info/man/txt/pdf/html...).
It parses the following kind of blocks:
Free-form:
##
# = Section
# == Subsection
#
# Some text foo with *emphasis*
# 1. with a list
# 2. like that
#
# And some code:
# | $ echo foo
# | -> do this
# | <- get that
#
##
Symbol description:
##
# @symbol:
#
# Symbol body ditto ergo sum. Foo bar
# baz ding.
#
# @param1: the frob to frobnicate
# @param2: #optional how hard to frobnicate
#
# Returns: the frobnicated frob.
# If frob isn't frobnicatable, GenericError.
#
# Since: version
# Notes: notes, comments can have
# - itemized list
# - like this
#
# Example:
#
# -> { "execute": "quit" }
# <- { "return": {} }
#
##
That's roughly following the following EBNF grammar:
api_comment = "##\n" comment "##\n"
comment = freeform_comment | symbol_comment
freeform_comment = { "# " text "\n" | "#\n" }
symbol_comment = "# @" name ":\n" { member | tag_section | freeform_comment }
member = "# @" name ':' [ text ] "\n" freeform_comment
tag_section = "# " ( "Returns:", "Since:", "Note:", "Notes:", "Example:", "Examples:" ) [ text ] "\n" freeform_comment
text = free text with markup
Note that the grammar is ambiguous: a line "# @foo:\n" can be parsed
both as freeform_comment and as symbol_comment. The actual parser
recognizes symbol_comment.
See docs/qapi-code-gen.txt for more details.
Deficiencies and limitations:
- the generated QMP documentation includes internal types
- union type support is lacking
- type information is lacking in generated documentation
- doc comment error message positions are imprecise, they point
to the beginning of the comment.
- a few minor issues, all marked TODO/FIXME in the code
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170113144135.5150-16-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[test-qapi.py tweaked to avoid trailing empty lines in .out]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
We already documented that qapi names should match specific
patterns (such as starting with a letter unless it was an enum
value or a downstream extension). Tighten that from a suggestion
into a hard requirement, which frees up names beginning with a
single underscore for qapi internal usage.
The tighter regex doesn't forbid everything insane that a user
could provide (for example, a user could name a type 'Foo-lookup'
to collide with the generated 'Foo_lookup[]' for an enum 'Foo'),
but does a good job at protecting the most obvious uses, and
also happens to reserve single leading underscore for later use.
The handling of enum values starting with a digit is tricky:
commit 9fb081e introduced a subtle bug by using c_name() on
a munged value, which would allow an enum to include the
member 'q-int' in spite of our reservation. Furthermore,
munging with a leading '_' would fail our tighter regex. So
fix it by only munging for leading digits (which are never
ticklish in c_name()) and by using a different prefix (I
picked 'D', although any letter should do).
Add new tests, reserved-member-underscore and reserved-enum-q,
to demonstrate the tighter checking.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1447836791-369-22-git-send-email-eblake@redhat.com>
Message-Id: <1447883135-18020-1-git-send-email-eblake@redhat.com>
[Eric's fixup squashed in]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
