#
# Copyright (c) 2012 The Chromium OS Authors.
#
# SPDX-License-Identifier:	GPL-2.0+
#

import os
import shutil
import sys
import tempfile
import time
import unittest

# Bring in the patman libraries
our_path = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(our_path, '../patman'))

import board
import bsettings
import builder
import control
import command
import commit
import terminal
import toolchain

use_network = True

settings_data = '''
# Buildman settings file

[toolchain]
main: /usr/sbin

[toolchain-alias]
x86: i386 x86_64
'''

errors = [
    '''main.c: In function 'main_loop':
main.c:260:6: warning: unused variable 'joe' [-Wunused-variable]
''',
    '''main.c: In function 'main_loop2':
main.c:295:2: error: 'fred' undeclared (first use in this function)
main.c:295:2: note: each undeclared identifier is reported only once for each function it appears in
make[1]: *** [main.o] Error 1
make: *** [common/libcommon.o] Error 2
Make failed
''',
    '''main.c: In function 'main_loop3':
main.c:280:6: warning: unused variable 'mary' [-Wunused-variable]
''',
    '''powerpc-linux-ld: warning: dot moved backwards before `.bss'
powerpc-linux-ld: warning: dot moved backwards before `.bss'
powerpc-linux-ld: u-boot: section .text lma 0xfffc0000 overlaps previous sections
powerpc-linux-ld: u-boot: section .rodata lma 0xfffef3ec overlaps previous sections
powerpc-linux-ld: u-boot: section .reloc lma 0xffffa400 overlaps previous sections
powerpc-linux-ld: u-boot: section .data lma 0xffffcd38 overlaps previous sections
powerpc-linux-ld: u-boot: section .u_boot_cmd lma 0xffffeb40 overlaps previous sections
powerpc-linux-ld: u-boot: section .bootpg lma 0xfffff198 overlaps previous sections
''',
   '''In file included from %(basedir)sarch/sandbox/cpu/cpu.c:9:0:
%(basedir)sarch/sandbox/include/asm/state.h:44:0: warning: "xxxx" redefined [enabled by default]
%(basedir)sarch/sandbox/include/asm/state.h:43:0: note: this is the location of the previous definition
%(basedir)sarch/sandbox/cpu/cpu.c: In function 'do_reset':
%(basedir)sarch/sandbox/cpu/cpu.c:27:1: error: unknown type name 'blah'
%(basedir)sarch/sandbox/cpu/cpu.c:28:12: error: expected declaration specifiers or '...' before numeric constant
make[2]: *** [arch/sandbox/cpu/cpu.o] Error 1
make[1]: *** [arch/sandbox/cpu] Error 2
make[1]: *** Waiting for unfinished jobs....
In file included from %(basedir)scommon/board_f.c:55:0:
%(basedir)sarch/sandbox/include/asm/state.h:44:0: warning: "xxxx" redefined [enabled by default]
%(basedir)sarch/sandbox/include/asm/state.h:43:0: note: this is the location of the previous definition
make: *** [sub-make] Error 2
'''
]


# hash, subject, return code, list of errors/warnings
commits = [
    ['1234', 'upstream/master, ok', 0, []],
    ['5678', 'Second commit, a warning', 0, errors[0:1]],
    ['9012', 'Third commit, error', 1, errors[0:2]],
    ['3456', 'Fourth commit, warning', 0, [errors[0], errors[2]]],
    ['7890', 'Fifth commit, link errors', 1, [errors[0], errors[3]]],
    ['abcd', 'Sixth commit, fixes all errors', 0, []],
    ['ef01', 'Seventh commit, check directory suppression', 1, [errors[4]]],
]

boards = [
    ['Active', 'arm', 'armv7', '', 'Tester', 'ARM Board 1', 'board0',  ''],
    ['Active', 'arm', 'armv7', '', 'Tester', 'ARM Board 2', 'board1', ''],
    ['Active', 'powerpc', 'powerpc', '', 'Tester', 'PowerPC board 1', 'board2', ''],
    ['Active', 'sandbox', 'sandbox', '', 'Tester', 'Sandbox board', 'board4', ''],
]

BASE_DIR = 'base'

class Options:
    """Class that holds build options"""
    pass

class TestBuild(unittest.TestCase):
    """Test buildman

    TODO: Write tests for the rest of the functionality
    """
    def setUp(self):
        # Set up commits to build
        self.commits = []
        sequence = 0
        for commit_info in commits:
            comm = commit.Commit(commit_info[0])
            comm.subject = commit_info[1]
            comm.return_code = commit_info[2]
            comm.error_list = commit_info[3]
            comm.sequence = sequence
            sequence += 1
            self.commits.append(comm)

        # Set up boards to build
        self.boards = board.Boards()
        for brd in boards:
            self.boards.AddBoard(board.Board(*brd))
        self.boards.SelectBoards([])

        # Add some test settings
        bsettings.Setup(None)
        bsettings.AddFile(settings_data)

        # Set up the toolchains
        self.toolchains = toolchain.Toolchains()
        self.toolchains.Add('arm-linux-gcc', test=False)
        self.toolchains.Add('sparc-linux-gcc', test=False)
        self.toolchains.Add('powerpc-linux-gcc', test=False)
        self.toolchains.Add('gcc', test=False)

        # Avoid sending any output
        terminal.SetPrintTestMode()
        self._col = terminal.Color()

    def Make(self, commit, brd, stage, *args, **kwargs):
        global base_dir

        result = command.CommandResult()
        boardnum = int(brd.target[-1])
        result.return_code = 0
        result.stderr = ''
        result.stdout = ('This is the test output for board %s, commit %s' %
                (brd.target, commit.hash))
        if ((boardnum >= 1 and boardnum >= commit.sequence) or
                boardnum == 4 and commit.sequence == 6):
            result.return_code = commit.return_code
            result.stderr = (''.join(commit.error_list)
                % {'basedir' : base_dir + '/.bm-work/00/'})
        if stage == 'build':
            target_dir = None
            for arg in args:
                if arg.startswith('O='):
                    target_dir = arg[2:]

            if not os.path.isdir(target_dir):
                os.mkdir(target_dir)

        result.combined = result.stdout + result.stderr
        return result

    def assertSummary(self, text, arch, plus, boards, ok=False):
        col = self._col
        expected_colour = col.GREEN if ok else col.RED
        expect = '%10s: ' % arch
        # TODO(sjg@chromium.org): If plus is '', we shouldn't need this
        expect += ' ' + col.Color(expected_colour, plus)
        expect += '  '
        for board in boards:
            expect += col.Color(expected_colour, ' %s' % board)
        self.assertEqual(text, expect)

    def testOutput(self):
        """Test basic builder operation and output

        This does a line-by-line verification of the summary output.
        """
        global base_dir

        base_dir = tempfile.mkdtemp()
        if not os.path.isdir(base_dir):
            os.mkdir(base_dir)
        build = builder.Builder(self.toolchains, base_dir, None, 1, 2,
                                checkout=False, show_unknown=False)
        build.do_make = self.Make
        board_selected = self.boards.GetSelectedDict()

        build.BuildBoards(self.commits, board_selected, keep_outputs=False,
                          verbose=False)
        lines = terminal.GetPrintTestLines()
        count = 0
        for line in lines:
            if line.text.strip():
                count += 1

        # We should get two starting messages, then an update for every commit
        # built.
        self.assertEqual(count, len(commits) * len(boards) + 2)
        build.SetDisplayOptions(show_errors=True);
        build.ShowSummary(self.commits, board_selected)
        #terminal.EchoPrintTestLines()
        lines = terminal.GetPrintTestLines()
        self.assertEqual(lines[0].text, '01: %s' % commits[0][1])
        self.assertEqual(lines[1].text, '02: %s' % commits[1][1])

        # We expect all archs to fail
        col = terminal.Color()
        self.assertSummary(lines[2].text, 'sandbox', '+', ['board4'])
        self.assertSummary(lines[3].text, 'arm', '+', ['board1'])
        self.assertSummary(lines[4].text, 'powerpc', '+', ['board2', 'board3'])

        # Now we should have the compiler warning
        self.assertEqual(lines[5].text, 'w+%s' %
                errors[0].rstrip().replace('\n', '\nw+'))
        self.assertEqual(lines[5].colour, col.MAGENTA)

        self.assertEqual(lines[6].text, '03: %s' % commits[2][1])
        self.assertSummary(lines[7].text, 'sandbox', '+', ['board4'])
        self.assertSummary(lines[8].text, 'arm', '', ['board1'], ok=True)
        self.assertSummary(lines[9].text, 'powerpc', '+', ['board2', 'board3'])

        # Compiler error
        self.assertEqual(lines[10].text, '+%s' %
                errors[1].rstrip().replace('\n', '\n+'))

        self.assertEqual(lines[11].text, '04: %s' % commits[3][1])
        self.assertSummary(lines[12].text, 'sandbox', '', ['board4'], ok=True)
        self.assertSummary(lines[13].text, 'powerpc', '', ['board2', 'board3'],
                ok=True)

        # Compile error fixed
        self.assertEqual(lines[14].text, '-%s' %
                errors[1].rstrip().replace('\n', '\n-'))
        self.assertEqual(lines[14].colour, col.GREEN)

        self.assertEqual(lines[15].text, 'w+%s' %
                errors[2].rstrip().replace('\n', '\nw+'))
        self.assertEqual(lines[15].colour, col.MAGENTA)

        self.assertEqual(lines[16].text, '05: %s' % commits[4][1])
        self.assertSummary(lines[17].text, 'sandbox', '+', ['board4'])
        self.assertSummary(lines[18].text, 'powerpc', '', ['board3'], ok=True)

        # The second line of errors[3] is a duplicate, so buildman will drop it
        expect = errors[3].rstrip().split('\n')
        expect = [expect[0]] + expect[2:]
        self.assertEqual(lines[19].text, '+%s' %
                '\n'.join(expect).replace('\n', '\n+'))

        self.assertEqual(lines[20].text, 'w-%s' %
                errors[2].rstrip().replace('\n', '\nw-'))

        self.assertEqual(lines[21].text, '06: %s' % commits[5][1])
        self.assertSummary(lines[22].text, 'sandbox', '', ['board4'], ok=True)

        # The second line of errors[3] is a duplicate, so buildman will drop it
        expect = errors[3].rstrip().split('\n')
        expect = [expect[0]] + expect[2:]
        self.assertEqual(lines[23].text, '-%s' %
                '\n'.join(expect).replace('\n', '\n-'))

        self.assertEqual(lines[24].text, 'w-%s' %
                errors[0].rstrip().replace('\n', '\nw-'))

        self.assertEqual(lines[25].text, '07: %s' % commits[6][1])
        self.assertSummary(lines[26].text, 'sandbox', '+', ['board4'])

        # Pick out the correct error lines
        expect_str = errors[4].rstrip().replace('%(basedir)s', '').split('\n')
        expect = expect_str[3:8] + [expect_str[-1]]
        self.assertEqual(lines[27].text, '+%s' %
                '\n'.join(expect).replace('\n', '\n+'))

        # Now the warnings lines
        expect = [expect_str[0]] + expect_str[10:12] + [expect_str[9]]
        self.assertEqual(lines[28].text, 'w+%s' %
                '\n'.join(expect).replace('\n', '\nw+'))

        self.assertEqual(len(lines), 29)
        shutil.rmtree(base_dir)

    def _testGit(self):
        """Test basic builder operation by building a branch"""
        base_dir = tempfile.mkdtemp()
        if not os.path.isdir(base_dir):
            os.mkdir(base_dir)
        options = Options()
        options.git = os.getcwd()
        options.summary = False
        options.jobs = None
        options.dry_run = False
        #options.git = os.path.join(base_dir, 'repo')
        options.branch = 'test-buildman'
        options.force_build = False
        options.list_tool_chains = False
        options.count = -1
        options.git_dir = None
        options.threads = None
        options.show_unknown = False
        options.quick = False
        options.show_errors = False
        options.keep_outputs = False
        args = ['tegra20']
        control.DoBuildman(options, args)
        shutil.rmtree(base_dir)

    def testBoardSingle(self):
        """Test single board selection"""
        self.assertEqual(self.boards.SelectBoards(['sandbox']),
                         {'all': 1, 'sandbox': 1})

    def testBoardArch(self):
        """Test single board selection"""
        self.assertEqual(self.boards.SelectBoards(['arm']),
                         {'all': 2, 'arm': 2})

    def testBoardArchSingle(self):
        """Test single board selection"""
        self.assertEqual(self.boards.SelectBoards(['arm sandbox']),
                         {'all': 3, 'arm': 2, 'sandbox' : 1})

    def testBoardArchSingleMultiWord(self):
        """Test single board selection"""
        self.assertEqual(self.boards.SelectBoards(['arm', 'sandbox']),
                         {'all': 3, 'arm': 2, 'sandbox' : 1})

    def testBoardSingleAnd(self):
        """Test single board selection"""
        self.assertEqual(self.boards.SelectBoards(['Tester & arm']),
                         {'all': 2, 'Tester&arm': 2})

    def testBoardTwoAnd(self):
        """Test single board selection"""
        self.assertEqual(self.boards.SelectBoards(['Tester', '&', 'arm',
                                                   'Tester' '&', 'powerpc',
                                                   'sandbox']),
                         {'all': 5, 'Tester&powerpc': 2, 'Tester&arm': 2,
                          'sandbox' : 1})

    def testBoardAll(self):
        """Test single board selection"""
        self.assertEqual(self.boards.SelectBoards([]), {'all': 5})

    def testBoardRegularExpression(self):
        """Test single board selection"""
        self.assertEqual(self.boards.SelectBoards(['T.*r&^Po']),
                         {'T.*r&^Po': 2, 'all': 2})

    def testBoardDuplicate(self):
        """Test single board selection"""
        self.assertEqual(self.boards.SelectBoards(['sandbox sandbox',
                                                   'sandbox']),
                         {'all': 1, 'sandbox': 1})
    def CheckDirs(self, build, dirname):
        self.assertEqual('base%s' % dirname, build._GetOutputDir(1))
        self.assertEqual('base%s/fred' % dirname,
                         build.GetBuildDir(1, 'fred'))
        self.assertEqual('base%s/fred/done' % dirname,
                         build.GetDoneFile(1, 'fred'))
        self.assertEqual('base%s/fred/u-boot.sizes' % dirname,
                         build.GetFuncSizesFile(1, 'fred', 'u-boot'))
        self.assertEqual('base%s/fred/u-boot.objdump' % dirname,
                         build.GetObjdumpFile(1, 'fred', 'u-boot'))
        self.assertEqual('base%s/fred/err' % dirname,
                         build.GetErrFile(1, 'fred'))

    def testOutputDir(self):
        build = builder.Builder(self.toolchains, BASE_DIR, None, 1, 2,
                                checkout=False, show_unknown=False)
        build.commits = self.commits
        build.commit_count = len(self.commits)
        subject = self.commits[1].subject.translate(builder.trans_valid_chars)
        dirname ='/%02d_of_%02d_g%s_%s' % (2, build.commit_count, commits[1][0],
                                           subject[:20])
        self.CheckDirs(build, dirname)

    def testOutputDirCurrent(self):
        build = builder.Builder(self.toolchains, BASE_DIR, None, 1, 2,
                                checkout=False, show_unknown=False)
        build.commits = None
        build.commit_count = 0
        self.CheckDirs(build, '/current')

    def testOutputDirNoSubdirs(self):
        build = builder.Builder(self.toolchains, BASE_DIR, None, 1, 2,
                                checkout=False, show_unknown=False,
                                no_subdirs=True)
        build.commits = None
        build.commit_count = 0
        self.CheckDirs(build, '')

    def testToolchainAliases(self):
        self.assertTrue(self.toolchains.Select('arm') != None)
        with self.assertRaises(ValueError):
            self.toolchains.Select('no-arch')
        with self.assertRaises(ValueError):
            self.toolchains.Select('x86')

        self.toolchains = toolchain.Toolchains()
        self.toolchains.Add('x86_64-linux-gcc', test=False)
        self.assertTrue(self.toolchains.Select('x86') != None)

        self.toolchains = toolchain.Toolchains()
        self.toolchains.Add('i386-linux-gcc', test=False)
        self.assertTrue(self.toolchains.Select('x86') != None)

    def testToolchainDownload(self):
        """Test that we can download toolchains"""
        if use_network:
            self.assertEqual('https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.9.0/x86_64-gcc-4.9.0-nolibc_arm-unknown-linux-gnueabi.tar.xz',
                self.toolchains.LocateArchUrl('arm'))


if __name__ == "__main__":
    unittest.main()