Add a script to copy shared assets to GStreamer modules

And add getpluginsdir here as it is shared by many modules

tests/check/getpluginsdir

+#!/usr/bin/env python3
+
+import os
+import sys
+import subprocess
+
+builddir = os.environ['MESON_BUILD_ROOT']
+
+res = ''
+args = sys.argv[1:]
+for i in range(0, len(args), 2):
+    project = args[i]
+    pkg_name = args[i + 1]
+    path = os.path.join(builddir, 'subprojects', project)
+    if os.path.exists(path):
+        res += ':' + path
+    else:
+        try:
+            res += ':' + subprocess.check_output(['pkg-config',
+                                                  '--variable=pluginsdir',
+                                                  pkg_name]).decode()
+        except subprocess.CalledProcessError:
+            exit(1)
+
+print(res.strip(":"))

update_gst_modules_assets.py

+#!/usr/bin/env python3
+
+import os
+import shutil
+import sys
+import argparse
+import subprocess
+
+parser = argparse.ArgumentParser(prog="update-gstreamer-common-files",
+                                 description="Copy files that are common to several repository"
+                                 " to the right places in those.")
+parser.add_argument("-m", "--commit-message",
+                    help="git add modified files and commit the changes with this message.")
+parser.add_argument('rootdir', metavar='rootdir', nargs=1,
+                    help='The directory where to find GStreamer modules repoos.')
+
+
+SCRIPTDIR = os.path.dirname(__file__)
+FILES_TO_COPY = ['hooks/pre-commit.hook']
+GETPLUGINSDIR = 'tests/check/getpluginsdir'
+
+FILES_TO_COPY_PER_MODULE = {
+    'gstreamer': [],
+    'gst-plugins-base': [GETPLUGINSDIR],
+    'gst-plugins-good': [GETPLUGINSDIR],
+    'gst-plugins-ugly': [GETPLUGINSDIR],
+    'gst-plugins-bad': [],
+    'gst-libav': [],
+    'gst-editing-services': [GETPLUGINSDIR],
+    'gst-devtools': [(GETPLUGINSDIR, "validate/tests/")],
+    'gst-python': [],
+}
+
+if __name__ == "__main__":
+    options = parser.parse_args()
+    rootpath = options.rootdir[0]
+    if not os.path.exists(rootpath):
+        print("Please path the root directory where to find GStreamer modules repos"
+              " %s does not exists", rootpath)
+        exit(1)
+
+    summary = ""
+    for module, files in FILES_TO_COPY_PER_MODULE.items():
+        files += FILES_TO_COPY
+
+        repodir = os.path.abspath(os.path.join(rootpath, module))
+        if not os.path.exists(repodir):
+            print("Repo %s does not exists" % repodir)
+            exit(1)
+
+        if options.commit_message:
+            dirty = False
+            try:
+                dirty = subprocess.check_output('git status --porcelain --untracked-files=no'.split(' '),
+                                cwd=repodir)
+            except Exception as e:
+                dirty = True
+
+            if dirty:
+                print("Can not commit %s as the repository is dirty." %
+                        (repodir))
+                exit(1)
+
+        for f in files:
+            if isinstance(f, tuple):
+                destdir = os.path.join(repodir, f[1])
+                f = f[0]
+            else:
+                dirname = os.path.dirname(f)
+                destdir = os.path.join(repodir, dirname)
+
+            if destdir and not os.path.exists(destdir):
+                print("Making dir %s" % destdir)
+                os.makedirs(destdir, exist_ok=True)
+
+            dest = os.path.join(destdir, os.path.basename(f))
+            print("Copying %s to %s" %(f, dest))
+            shutil.copy(os.path.join(SCRIPTDIR, f), dest)
+            if options.commit_message:
+                subprocess.check_call(['git', 'add', os.path.abspath(dest)],
+                                      cwd=repodir)
+
+        if options.commit_message:
+            if subprocess.call('git diff-index --quiet --cached HEAD'.split(' '), cwd=repodir) != 0:
+                subprocess.call(['git', 'commit', '-m', options.commit_message], cwd=repodir)
+                if not summary:
+                    summary = "Commited:\n"
+                summary += repodir + '\n'
+
+    print(summary)