[NaCl SDK] Add naclports README and LICENSE file.

NOTRY=true
BUG=222128

Review URL: https://chromiumcodereview.appspot.com/12656007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@190758 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 40 insertions, 8 deletions

diff --git a/native_client_sdk/src/README.naclports b/native_client_sdk/src/README.naclports
new file mode 100644
index 0000000..ed6fa76
--- /dev/null
+++ b/native_client_sdk/src/README.naclports
@@ -0,0 +1,14 @@
+NaCl Ports
+==========
+
+This folder contains headers and pre-built libraries for several
+of the more commonly used open source third-party libraries.
+
+These libraries were built from the naclports project.  For access
+to the full sources, or to rebuild or modify these libraries please
+follow the instructions on naclports:
+
+  https://code.google.com/p/naclports/
+
+Please note that each of libraries libraries is licensed under its
+own specific license.   See NOTICE for full list of license terms.
diff --git a/native_client_sdk/src/build_tools/build_sdk.py b/native_client_sdk/src/build_tools/build_sdk.py
index 4f0fbfb..7804ae8 100755
--- a/native_client_sdk/src/build_tools/build_sdk.py
+++ b/native_client_sdk/src/build_tools/build_sdk.py
@@ -780,20 +780,24 @@ def BuildStepBuildLibraries(pepperdir, platform, directory, clean=True):
       clean=clean, config='Release')
 
 
-def BuildStepGenerateNotice(pepperdir):
+def GenerateNotice(fileroot, output_filename='NOTICE', extra_files=None):
   # Look for LICENSE files
-  license_filenames_re = re.compile('LICENSE|COPYING')
+  license_filenames_re = re.compile('LICENSE|COPYING|COPYRIGHT')
 
   license_files = []
-  for root, _, files in os.walk(pepperdir):
+  for root, _, files in os.walk(fileroot):
     for filename in files:
       if license_filenames_re.match(filename):
         path = os.path.join(root, filename)
         license_files.append(path)
+
+  if extra_files:
+    license_files += [os.path.join(fileroot, f) for f in extra_files]
   print '\n'.join(license_files)
 
-  notice_filename = os.path.join(pepperdir, 'NOTICE')
-  generate_notice.Generate(notice_filename, pepperdir, license_files)
+  if not os.path.isabs(output_filename):
+    output_filename = os.path.join(fileroot, output_filename)
+  generate_notice.Generate(output_filename, fileroot, license_files)
 
 
 def BuildStepTarBundle(pepper_ver, tarfile):
@@ -905,6 +909,18 @@ def BuildStepBuildNaClPorts(pepper_ver, pepperdir):
   buildbot_common.Run([build_script], env=env, cwd=NACLPORTS_DIR)
 
   out_dir = os.path.join(bundle_dir, 'pepper_XX')
+
+  # Some naclports do not include a standalone LICENSE/COPYING file
+  # so we explicitly list those here for inclusion.
+  extra_licenses = ('tinyxml/readme.txt',
+                    'jpeg-8d/README',
+                    'zlib-1.2.3/README')
+  src_root = os.path.join(NACLPORTS_DIR, 'out', 'repository-i686')
+  output_license = os.path.join(out_dir, 'LICENSE')
+  GenerateNotice(src_root , output_license, extra_licenses)
+  readme = os.path.join(out_dir, 'README')
+  oshelpers.Copy(['-v', 'README.naclports', readme])
+
   out_dir_final = os.path.join(bundle_dir, 'pepper_%s' % pepper_ver)
   buildbot_common.Move(out_dir, out_dir_final)
 
@@ -1009,7 +1025,7 @@ def main(args):
 
   # Ship with libraries prebuilt, so run that first.
   BuildStepBuildLibraries(pepperdir, platform, 'src')
-  BuildStepGenerateNotice(pepperdir)
+  GenerateNotice(pepperdir)
 
   if not options.skip_tar:
     BuildStepTarBundle(pepper_ver, tarfile)
diff --git a/native_client_sdk/src/build_tools/generate_notice.py b/native_client_sdk/src/build_tools/generate_notice.py
index ffc376b..c7d81d2 100755
--- a/native_client_sdk/src/build_tools/generate_notice.py
+++ b/native_client_sdk/src/build_tools/generate_notice.py
@@ -34,6 +34,7 @@ def CreateLicenseDict(files):
   license_dict = {}
   for filename in files:
     license_text = open(filename).read()
+    license_text = license_text.replace('\r\n', '\n')
     license_dict.setdefault(license_text, []).append(filename)
 
   # Flip the dictionary (map tuple of filenames -> license text).
@@ -53,15 +54,16 @@ def WriteLicense(output_file, root, license_text, license_filenames):
     output_file.write('  (Cf. %s):\n' % (filename,))
   output_file.write('=' * 70 + '\n')
   output_file.write(license_text)
-  output_file.write('\n\n\n')
 
 
 def Generate(output_filename, root, files):
   found_files = FindFiles(files)
   license_dict = CreateLicenseDict(found_files)
   with open(output_filename, 'w') as output_file:
-    for license_filenames in sorted(license_dict.iterkeys()):
+    for i, license_filenames in enumerate(sorted(license_dict.iterkeys())):
       license_text = license_dict[license_filenames]
+      if i:
+        output_file.write('\n\n\n')
       WriteLicense(output_file, root, license_text, license_filenames)