Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 186 insertions, 0 deletions

diff --git a/meson/mesonbuild/minit.py b/meson/mesonbuild/minit.py
new file mode 100644
index 000000000..124e6c671
--- /dev/null
+++ b/meson/mesonbuild/minit.py
@@ -0,0 +1,186 @@
+# Copyright 2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Code that creates simple startup projects."""
+
+from pathlib import Path
+from enum import Enum
+import subprocess
+import shutil
+import sys
+import os
+import re
+from glob import glob
+from mesonbuild import mesonlib
+from mesonbuild.environment import detect_ninja
+from mesonbuild.templates.samplefactory import sameple_generator
+import typing as T
+
+if T.TYPE_CHECKING:
+    import argparse
+
+'''
+we currently have one meson template at this time.
+'''
+from mesonbuild.templates.mesontemplates import create_meson_build
+
+FORTRAN_SUFFIXES = {'.f', '.for', '.F', '.f90', '.F90'}
+LANG_SUFFIXES = {'.c', '.cc', '.cpp', '.cs', '.cu', '.d', '.m', '.mm', '.rs', '.java'} | FORTRAN_SUFFIXES
+LANG_SUPPORTED = {'c', 'cpp', 'cs', 'cuda', 'd', 'fortran', 'java', 'rust', 'objc', 'objcpp'}
+
+DEFAULT_PROJECT = 'executable'
+DEFAULT_VERSION = '0.1'
+class DEFAULT_TYPES(Enum):
+    EXE = 'executable'
+    LIB = 'library'
+
+INFO_MESSAGE = '''Sample project created. To build it run the
+following commands:
+
+meson setup builddir
+meson compile -C builddir
+'''
+
+
+def create_sample(options: 'argparse.Namespace') -> None:
+    '''
+    Based on what arguments are passed we check for a match in language
+    then check for project type and create new Meson samples project.
+    '''
+    sample_gen = sameple_generator(options)
+    if options.type == DEFAULT_TYPES['EXE'].value:
+        sample_gen.create_executable()
+    elif options.type == DEFAULT_TYPES['LIB'].value:
+        sample_gen.create_library()
+    else:
+        raise RuntimeError('Unreachable code')
+    print(INFO_MESSAGE)
+
+def autodetect_options(options: 'argparse.Namespace', sample: bool = False) -> None:
+    '''
+    Here we autodetect options for args not passed in so don't have to
+    think about it.
+    '''
+    if not options.name:
+        options.name = Path().resolve().stem
+        if not re.match('[a-zA-Z_][a-zA-Z0-9]*', options.name) and sample:
+            raise SystemExit('Name of current directory "{}" is not usable as a sample project name.\n'
+                             'Specify a project name with --name.'.format(options.name))
+        print('Using "{}" (name of current directory) as project name.'
+              .format(options.name))
+    if not options.executable:
+        options.executable = options.name
+        print('Using "{}" (project name) as name of executable to build.'
+              .format(options.executable))
+    if sample:
+        # The rest of the autodetection is not applicable to generating sample projects.
+        return
+    if not options.srcfiles:
+        srcfiles = []
+        for f in (f for f in Path().iterdir() if f.is_file()):
+            if f.suffix in LANG_SUFFIXES:
+                srcfiles.append(f)
+        if not srcfiles:
+            raise SystemExit('No recognizable source files found.\n'
+                             'Run meson init in an empty directory to create a sample project.')
+        options.srcfiles = srcfiles
+        print("Detected source files: " + ' '.join(map(str, srcfiles)))
+    options.srcfiles = [Path(f) for f in options.srcfiles]
+    if not options.language:
+        for f in options.srcfiles:
+            if f.suffix == '.c':
+                options.language = 'c'
+                break
+            if f.suffix in ('.cc', '.cpp'):
+                options.language = 'cpp'
+                break
+            if f.suffix == '.cs':
+                options.language = 'cs'
+                break
+            if f.suffix == '.cu':
+                options.language = 'cuda'
+                break
+            if f.suffix == '.d':
+                options.language = 'd'
+                break
+            if f.suffix in FORTRAN_SUFFIXES:
+                options.language = 'fortran'
+                break
+            if f.suffix == '.rs':
+                options.language = 'rust'
+                break
+            if f.suffix == '.m':
+                options.language = 'objc'
+                break
+            if f.suffix == '.mm':
+                options.language = 'objcpp'
+                break
+            if f.suffix == '.java':
+                options.language = 'java'
+                break
+        if not options.language:
+            raise SystemExit("Can't autodetect language, please specify it with -l.")
+        print("Detected language: " + options.language)
+
+def add_arguments(parser: 'argparse.ArgumentParser') -> None:
+    '''
+    Here we add args for that the user can passed when making a new
+    Meson project.
+    '''
+    parser.add_argument("srcfiles", metavar="sourcefile", nargs="*", help="source files. default: all recognized files in current directory")
+    parser.add_argument('-C', dest='wd', action=mesonlib.RealPathAction,
+                        help='directory to cd into before running')
+    parser.add_argument("-n", "--name", help="project name. default: name of current directory")
+    parser.add_argument("-e", "--executable", help="executable name. default: project name")
+    parser.add_argument("-d", "--deps", help="dependencies, comma-separated")
+    parser.add_argument("-l", "--language", choices=sorted(LANG_SUPPORTED), help="project language. default: autodetected based on source files")
+    parser.add_argument("-b", "--build", action='store_true', help="build after generation")
+    parser.add_argument("--builddir", default='build', help="directory for build")
+    parser.add_argument("-f", "--force", action="store_true", help="force overwrite of existing files and directories.")
+    parser.add_argument('--type', default=DEFAULT_PROJECT, choices=('executable', 'library'), help=f"project type. default: {DEFAULT_PROJECT} based project")
+    parser.add_argument('--version', default=DEFAULT_VERSION, help=f"project version. default: {DEFAULT_VERSION}")
+
+def run(options: 'argparse.Namespace') -> int:
+    '''
+    Here we generate the new Meson sample project.
+    '''
+    if not Path(options.wd).exists():
+        sys.exit('Project source root directory not found. Run this command in source directory root.')
+    os.chdir(options.wd)
+
+    if not glob('*'):
+        autodetect_options(options, sample=True)
+        if not options.language:
+            print('Defaulting to generating a C language project.')
+            options.language = 'c'
+        create_sample(options)
+    else:
+        autodetect_options(options)
+        if Path('meson.build').is_file() and not options.force:
+            raise SystemExit('meson.build already exists. Use --force to overwrite.')
+        create_meson_build(options)
+    if options.build:
+        if Path(options.builddir).is_dir() and options.force:
+            print('Build directory already exists, deleting it.')
+            shutil.rmtree(options.builddir)
+        print('Building...')
+        cmd = mesonlib.get_meson_command() + [options.builddir]
+        ret = subprocess.run(cmd)
+        if ret.returncode:
+            raise SystemExit
+        cmd = detect_ninja() + ['-C', options.builddir]
+        ret = subprocess.run(cmd)
+        if ret.returncode:
+            raise SystemExit
+    return 0