meson: remove tap-driver.py, use meson's TAP protocol

This includes a patch from Andrew to fix pactest's TAP output for
subtests. Original TAP support in meson was added in 0.50, but 0.51
contains a bugfix that ensures the test still work with the --verbose
flag passed to meson test, so let's depend on that.

1 files changed, 0 insertions, 296 deletions

diff --git a/build-aux/tap-driver.py b/build-aux/tap-driver.py
deleted file mode 100644
index c231caec..00000000
--- a/build-aux/tap-driver.py
+++ /dev/null
@@ -1,296 +0,0 @@
-#!/usr/bin/env python3
-# Adapted from tappy copyright (c) 2016, Matt Layman
-# MIT license
-# https://github.com/python-tap/tappy
-
-import io
-import re
-import subprocess
-import sys
-
-
-class Directive(object):
-    """A representation of a result line directive."""
-
-    skip_pattern = re.compile(
-        r"""^SKIP\S*
-            (?P<whitespace>\s*) # Optional whitespace.
-            (?P<reason>.*)      # Slurp up the rest.""",
-        re.IGNORECASE | re.VERBOSE)
-    todo_pattern = re.compile(
-        r"""^TODO\b             # The directive name
-            (?P<whitespace>\s*) # Immediately following must be whitespace.
-            (?P<reason>.*)      # Slurp up the rest.""",
-        re.IGNORECASE | re.VERBOSE)
-
-    def __init__(self, text):
-        """Initialize the directive by parsing the text.
-        The text is assumed to be everything after a '#\s*' on a result line.
-        """
-        self._text = text
-        self._skip = False
-        self._todo = False
-        self._reason = None
-
-        match = self.skip_pattern.match(text)
-        if match:
-            self._skip = True
-            self._reason = match.group('reason')
-
-        match = self.todo_pattern.match(text)
-        if match:
-            if match.group('whitespace'):
-                self._todo = True
-            else:
-                # Catch the case where the directive has no descriptive text.
-                if match.group('reason') == '':
-                    self._todo = True
-            self._reason = match.group('reason')
-
-    @property
-    def text(self):
-        """Get the entire text."""
-        return self._text
-
-    @property
-    def skip(self):
-        """Check if the directive is a SKIP type."""
-        return self._skip
-
-    @property
-    def todo(self):
-        """Check if the directive is a TODO type."""
-        return self._todo
-
-    @property
-    def reason(self):
-        """Get the reason for the directive."""
-        return self._reason
-
-
-class Parser(object):
-    """A parser for TAP files and lines."""
-
-    # ok and not ok share most of the same characteristics.
-    result_base = r"""
-        \s*                    # Optional whitespace.
-        (?P<number>\d*)        # Optional test number.
-        \s*                    # Optional whitespace.
-        (?P<description>[^#]*) # Optional description before #.
-        \#?                    # Optional directive marker.
-        \s*                    # Optional whitespace.
-        (?P<directive>.*)      # Optional directive text.
-    """
-    ok = re.compile(r'^ok' + result_base, re.VERBOSE)
-    not_ok = re.compile(r'^not\ ok' + result_base, re.VERBOSE)
-    plan = re.compile(r"""
-        ^1..(?P<expected>\d+) # Match the plan details.
-        [^#]*                 # Consume any non-hash character to confirm only
-                              # directives appear with the plan details.
-        \#?                   # Optional directive marker.
-        \s*                   # Optional whitespace.
-        (?P<directive>.*)     # Optional directive text.
-    """, re.VERBOSE)
-    diagnostic = re.compile(r'^#')
-    bail = re.compile(r"""
-        ^Bail\ out!
-        \s*            # Optional whitespace.
-        (?P<reason>.*) # Optional reason.
-    """, re.VERBOSE)
-    version = re.compile(r'^TAP version (?P<version>\d+)$')
-
-    TAP_MINIMUM_DECLARED_VERSION = 13
-
-    def parse(self, fh):
-        """Generate tap.line.Line objects, given a file-like object `fh`.
-        `fh` may be any object that implements both the iterator and
-        context management protocol (i.e. it can be used in both a
-        "with" statement and a "for...in" statement.)
-        Trailing whitespace and newline characters will be automatically
-        stripped from the input lines.
-        """
-        with fh:
-            for line in fh:
-                yield self.parse_line(line.rstrip())
-
-    def parse_line(self, text):
-        """Parse a line into whatever TAP category it belongs."""
-        match = self.ok.match(text)
-        if match:
-            return self._parse_result(True, match)
-
-        match = self.not_ok.match(text)
-        if match:
-            return self._parse_result(False, match)
-
-        if self.diagnostic.match(text):
-            return ('diagnostic', text)
-
-        match = self.plan.match(text)
-        if match:
-            return self._parse_plan(match)
-
-        match = self.bail.match(text)
-        if match:
-            return ('bail', match.group('reason'))
-
-        match = self.version.match(text)
-        if match:
-            return self._parse_version(match)
-
-        return ('unknown',)
-
-    def _parse_plan(self, match):
-        """Parse a matching plan line."""
-        expected_tests = int(match.group('expected'))
-        directive = Directive(match.group('directive'))
-
-        # Only SKIP directives are allowed in the plan.
-        if directive.text and not directive.skip:
-            return ('unknown',)
-
-        return ('plan', expected_tests, directive)
-
-    def _parse_result(self, ok, match):
-        """Parse a matching result line into a result instance."""
-        return ('result', ok, match.group('number'),
-            match.group('description').strip(),
-            Directive(match.group('directive')))
-
-    def _parse_version(self, match):
-        version = int(match.group('version'))
-        if version < self.TAP_MINIMUM_DECLARED_VERSION:
-            raise ValueError('It is an error to explicitly specify '
-                             'any version lower than 13.')
-        return ('version', version)
-
-
-class Rules(object):
-
-    def __init__(self):
-        self._lines_seen = {'plan': [], 'test': 0, 'failed': 0, 'version': []}
-        self._errors = []
-
-    def check(self, final_line_count):
-        """Check the status of all provided data and update the suite."""
-        if self._lines_seen['version']:
-            self._process_version_lines()
-        self._process_plan_lines(final_line_count)
-
-    def check_errors(self):
-        if self._lines_seen['failed'] > 0:
-            self._add_error('Tests failed.')
-        if self._errors:
-            for error in self._errors:
-                print(error)
-            return 1
-        return 0
-
-    def _process_version_lines(self):
-        """Process version line rules."""
-        if len(self._lines_seen['version']) > 1:
-            self._add_error('Multiple version lines appeared.')
-        elif self._lines_seen['version'][0] != 1:
-            self._add_error('The version must be on the first line.')
-
-    def _process_plan_lines(self, final_line_count):
-        """Process plan line rules."""
-        if not self._lines_seen['plan']:
-            self._add_error('Missing a plan.')
-            return
-
-        if len(self._lines_seen['plan']) > 1:
-            self._add_error('Only one plan line is permitted per file.')
-            return
-
-        expected_tests, at_line = self._lines_seen['plan'][0]
-        if not self._plan_on_valid_line(at_line, final_line_count):
-            self._add_error(
-                'A plan must appear at the beginning or end of the file.')
-            return
-
-        if expected_tests != self._lines_seen['test']:
-            self._add_error(
-                'Expected {expected_count} tests '
-                'but only {seen_count} ran.'.format(
-                    expected_count=expected_tests,
-                    seen_count=self._lines_seen['test']))
-
-    def _plan_on_valid_line(self, at_line, final_line_count):
-        """Check if a plan is on a valid line."""
-        # Put the common cases first.
-        if at_line == 1 or at_line == final_line_count:
-            return True
-
-        # The plan may only appear on line 2 if the version is at line 1.
-        after_version = (
-            self._lines_seen['version'] and
-            self._lines_seen['version'][0] == 1 and
-            at_line == 2)
-        if after_version:
-            return True
-
-        return False
-
-    def handle_bail(self, reason):
-        """Handle a bail line."""
-        self._add_error('Bailed: {reason}').format(reason=reason)
-
-    def handle_skipping_plan(self):
-        """Handle a plan that contains a SKIP directive."""
-        sys.exit(77)
-
-    def saw_plan(self, expected_tests, at_line):
-        """Record when a plan line was seen."""
-        self._lines_seen['plan'].append((expected_tests, at_line))
-
-    def saw_test(self, ok):
-        """Record when a test line was seen."""
-        self._lines_seen['test'] += 1
-        if not ok:
-            self._lines_seen['failed'] += 1
-
-    def saw_version_at(self, line_counter):
-        """Record when a version line was seen."""
-        self._lines_seen['version'].append(line_counter)
-
-    def _add_error(self, message):
-        self._errors += [message]
-
-
-if __name__ == '__main__':
-    parser = Parser()
-    rules = Rules()
-
-    try:
-        out = subprocess.check_output(sys.argv[1:], universal_newlines=True)
-    except subprocess.CalledProcessError as e:
-        sys.stdout.write(e.output)
-        raise e
-
-    line_generator = parser.parse(io.StringIO(out))
-    line_counter = 0
-    for line in line_generator:
-        line_counter += 1
-
-        if line[0] == 'unknown':
-            continue
-
-        if line[0] == 'result':
-            rules.saw_test(line[1])
-            print('{okay} {num} {description} {directive}'.format(
-                okay=('' if line[1] else 'not ') + 'ok', num=line[2],
-                description=line[3], directive=line[4].text))
-        elif line[0] == 'plan':
-            if line[2].skip:
-                rules.handle_skipping_plan()
-            rules.saw_plan(line[1], line_counter)
-        elif line[0] == 'bail':
-            rules.handle_bail(line[1])
-        elif line[0] == 'version':
-            rules.saw_version_at(line_counter)
-        elif line[0] == 'diagnostic':
-            print(line[1])
-
-    rules.check(line_counter)
-    sys.exit(rules.check_errors())