1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
  153
  154
  155
  156
  157
  158
  159
  160
  161
  162
  163
  164
  165
  166
  167
  168
  169
  170
  171
  172
  173
  174
  175
  176
  177
  178
  179
  180
  181
  182
  183
  184
  185
  186
  187
  188
  189
  190
  191
  192
  193
  194
  195
  196
  197
  198
  199
  200
  201
  202
  203
  204
  205
  206
  207
  208
  209
  210
  211
  212
  213

build / win / gn_meta_sln.py [blame]

# Copyright 2017 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# gn_meta_sln.py
#   Helper utility to combine GN-generated Visual Studio projects into
#   a single meta-solution.


import os
import glob
import re
import sys
from shutil import copyfile

# Helpers
def EnsureExists(path):
    try:
        os.makedirs(path)
    except OSError:
        pass

def WriteLinesToFile(lines, file_name):
    EnsureExists(os.path.dirname(file_name))
    with open(file_name, "w") as f:
        f.writelines(lines)

def ExtractIdg(proj_file_name):
    result = []
    with open(proj_file_name) as proj_file:
        lines = iter(proj_file)
        for p_line in lines:
            if "<ItemDefinitionGroup" in p_line:
                while not "</ItemDefinitionGroup" in p_line:
                    result.append(p_line)
                    p_line = lines.next()
                result.append(p_line)
                return result

# [ (name, solution_name, vs_version), ... ]
configs = []

def GetVSVersion(solution_file):
    with open(solution_file) as f:
        f.readline()
        comment = f.readline().strip()
        return comment[-4:]

# Find all directories that can be used as configs (and record if they have VS
# files present)
for root, dirs, files in os.walk("out"):
    for out_dir in dirs:
        gn_file = os.path.join("out", out_dir, "build.ninja.d")
        if os.path.exists(gn_file):
            solutions = glob.glob(os.path.join("out", out_dir, "*.sln"))
            for solution in solutions:
                vs_version = GetVSVersion(solution)
                configs.append((out_dir, os.path.basename(solution),
                                vs_version))
    break

# Every project has a GUID that encodes the type. We only care about C++.
cpp_type_guid = "8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942"

# Work around MSBuild limitations by always using a fixed arch.
hard_coded_arch = "x64"

# name -> [ (config, pathToProject, GUID, arch), ... ]
all_projects = {}
project_pattern = (r'Project\("\{' + cpp_type_guid +
                   r'\}"\) = "([^"]*)", "([^"]*)", "\{([^\}]*)\}"')

# We need something to work with. Typically, this will fail if no GN folders
# have IDE files
if len(configs) == 0:
    print("ERROR: At least one GN directory must have been built with --ide=vs")
    sys.exit()

# Filter out configs which don't match the name and vs version of the first.
name = configs[0][1]
vs_version = configs[0][2]

for config in configs:
    if config[1] != name or config[2] != vs_version:
        continue

    sln_lines = iter(open(os.path.join("out", config[0], config[1])))
    for sln_line in sln_lines:
        match_obj = re.match(project_pattern, sln_line)
        if match_obj:
            proj_name = match_obj.group(1)
            if proj_name not in all_projects:
                all_projects[proj_name] = []
            all_projects[proj_name].append((config[0], match_obj.group(2),
                                            match_obj.group(3)))

# We need something to work with. Typically, this will fail if no GN folders
# have IDE files
if len(all_projects) == 0:
    print("ERROR: At least one GN directory must have been built with --ide=vs")
    sys.exit()

# Create a new solution. We arbitrarily use the first config as the GUID source
# (but we need to match that behavior later, when we copy/generate the project
# files).
new_sln_lines = []
new_sln_lines.append(
    'Microsoft Visual Studio Solution File, Format Version 12.00\n')
new_sln_lines.append('# Visual Studio ' + vs_version + '\n')
for proj_name, proj_configs in all_projects.items():
    new_sln_lines.append('Project("{' + cpp_type_guid + '}") = "' + proj_name +
                         '", "' + proj_configs[0][1] + '", "{' +
                         proj_configs[0][2] + '}"\n')
    new_sln_lines.append('EndProject\n')

new_sln_lines.append('Global\n')
new_sln_lines.append(
    '\tGlobalSection(SolutionConfigurationPlatforms) = preSolution\n')
for config in configs:
    match = config[0] + '|' + hard_coded_arch
    new_sln_lines.append('\t\t' + match + ' = ' + match + '\n')
new_sln_lines.append('\tEndGlobalSection\n')
new_sln_lines.append(
    '\tGlobalSection(ProjectConfigurationPlatforms) = postSolution\n')
for proj_name, proj_configs in all_projects.items():
    proj_guid = proj_configs[0][2]
    for config in configs:
        match = config[0] + '|' + hard_coded_arch
        new_sln_lines.append('\t\t{' + proj_guid + '}.' + match +
                           '.ActiveCfg = ' + match + '\n')
        new_sln_lines.append('\t\t{' + proj_guid + '}.' + match +
                           '.Build.0 = ' + match + '\n')
new_sln_lines.append('\tEndGlobalSection\n')
new_sln_lines.append('\tGlobalSection(SolutionProperties) = preSolution\n')
new_sln_lines.append('\t\tHideSolutionNode = FALSE\n')
new_sln_lines.append('\tEndGlobalSection\n')
new_sln_lines.append('\tGlobalSection(NestedProjects) = preSolution\n')
new_sln_lines.append('\tEndGlobalSection\n')
new_sln_lines.append('EndGlobal\n')

# Write solution file
WriteLinesToFile(new_sln_lines, 'out/sln/' + name)

idg_hdr = "<ItemDefinitionGroup Condition=\"'$(Configuration)|$(Platform)'=='"

configuration_template = """    <ProjectConfiguration Include="{config}|{arch}">
      <Configuration>{config}</Configuration>
      <Platform>{arch}</Platform>
    </ProjectConfiguration>
"""

def FormatProjectConfig(config):
    return configuration_template.format(
        config = config[0], arch = hard_coded_arch)

# Now, bring over the project files
for proj_name, proj_configs in all_projects.items():
    # Paths to project and filter file in src and dst locations
    src_proj_path = os.path.join("out", proj_configs[0][0], proj_configs[0][1])
    dst_proj_path = os.path.join("out", "sln", proj_configs[0][1])
    src_filter_path = src_proj_path + ".filters"
    dst_filter_path = dst_proj_path + ".filters"

    # Copy the filter file unmodified
    EnsureExists(os.path.dirname(dst_proj_path))
    copyfile(src_filter_path, dst_filter_path)

    preferred_tool_arch = None
    config_arch = {}

    # Bring over the project file, modified with extra configs
    with open(src_proj_path) as src_proj_file:
        proj_lines = iter(src_proj_file)
        new_proj_lines = []
        for line in proj_lines:
            if "<ItemDefinitionGroup" in line:
                # This is a large group that contains many settings. We need to
                # replicate it, with conditions so it varies per configuration.
                idg_lines = []
                while not "</ItemDefinitionGroup" in line:
                    idg_lines.append(line)
                    line = proj_lines.next()
                idg_lines.append(line)
                for proj_config in proj_configs:
                    config_idg_lines = ExtractIdg(os.path.join("out",
                                                             proj_config[0],
                                                             proj_config[1]))
                    match = proj_config[0] + '|' + hard_coded_arch
                    new_proj_lines.append(idg_hdr + match + "'\">\n")
                    for idg_line in config_idg_lines[1:]:
                        new_proj_lines.append(idg_line)
            elif "ProjectConfigurations" in line:
                new_proj_lines.append(line)
                proj_lines.next()
                proj_lines.next()
                proj_lines.next()
                proj_lines.next()
                for config in configs:
                    new_proj_lines.append(FormatProjectConfig(config))

            elif "<OutDir" in line:
                new_proj_lines.append(line.replace(proj_configs[0][0],
                                                 "$(Configuration)"))
            elif "<PreferredToolArchitecture" in line:
                new_proj_lines.append("    <PreferredToolArchitecture>" +
                                      hard_coded_arch +
                                      "</PreferredToolArchitecture>\n")
            else:
                new_proj_lines.append(line)
        with open(dst_proj_path, "w") as new_proj:
            new_proj.writelines(new_proj_lines)

print('Wrote meta solution to out/sln/' + name)