diff options
Diffstat (limited to 'mesonbuild/wrap')
| -rw-r--r-- | mesonbuild/wrap/__init__.py | 31 | ||||
| -rw-r--r-- | mesonbuild/wrap/wrap.py | 10 |
2 files changed, 40 insertions, 1 deletions
diff --git a/mesonbuild/wrap/__init__.py b/mesonbuild/wrap/__init__.py index e69de29..019634c 100644 --- a/mesonbuild/wrap/__init__.py +++ b/mesonbuild/wrap/__init__.py @@ -0,0 +1,31 @@ +from enum import Enum + +# Used for the --wrap-mode command-line argument +# +# Special wrap modes: +# nofallback: Don't download wraps for dependency() fallbacks +# nodownload: Don't download wraps for all subproject() calls +# +# subprojects are used for two purposes: +# 1. To download and build dependencies by using .wrap +# files if they are not provided by the system. This is +# usually expressed via dependency(..., fallback: ...). +# 2. To download and build 'copylibs' which are meant to be +# used by copying into your project. This is always done +# with an explicit subproject() call. +# +# --wrap-mode=nofallback will never do (1) +# --wrap-mode=nodownload will do neither (1) nor (2) +# +# If you are building from a release tarball, you should be +# able to safely use 'nodownload' since upstream is +# expected to ship all required sources with the tarball. +# +# If you are building from a git repository, you will want +# to use 'nofallback' so that any 'copylib' wraps will be +# download as subprojects. +# +# Note that these options do not affect subprojects that +# are git submodules since those are only usable in git +# repositories, and you almost always want to download them. +WrapMode = Enum('WrapMode', 'default nofallback nodownload') diff --git a/mesonbuild/wrap/wrap.py b/mesonbuild/wrap/wrap.py index ad2e3e4..fcacc16 100644 --- a/mesonbuild/wrap/wrap.py +++ b/mesonbuild/wrap/wrap.py @@ -18,6 +18,7 @@ import urllib.request, os, hashlib, shutil import subprocess import sys from pathlib import Path +from . import WrapMode try: import ssl @@ -94,7 +95,8 @@ class PackageDefinition: return 'patch_url' in self.values class Resolver: - def __init__(self, subdir_root): + def __init__(self, subdir_root, wrap_mode=WrapMode(1)): + self.wrap_mode = wrap_mode self.subdir_root = subdir_root self.cachedir = os.path.join(self.subdir_root, 'packagecache') @@ -120,6 +122,12 @@ class Resolver: if self.resolve_git_submodule(dirname): return packagename + # Don't download subproject data based on wrap file if requested. + # Git submodules are ok (see above)! + if self.wrap_mode is WrapMode.nodownload: + m = 'Automatic wrap-based subproject downloading is disabled' + raise RuntimeError(m) + # Check if there's a .wrap file for this subproject fname = os.path.join(self.subdir_root, packagename + '.wrap') if not os.path.isfile(fname): |