[ARVADOS] created: e289b9ad5959a76795681ca95d310bad2288656a

Git user git at public.curoverse.com
Thu Apr 27 16:16:44 EDT 2017


        at  e289b9ad5959a76795681ca95d310bad2288656a (commit)


commit e289b9ad5959a76795681ca95d310bad2288656a
Author: Lucas Di Pentima <lucas at curoverse.com>
Date:   Thu Apr 27 17:15:53 2017 -0300

    11579: Explicitly following links on test.

diff --git a/sdk/python/tests/test_arv_put.py b/sdk/python/tests/test_arv_put.py
index ac8f00c..547cfc2 100644
--- a/sdk/python/tests/test_arv_put.py
+++ b/sdk/python/tests/test_arv_put.py
@@ -287,7 +287,8 @@ class ArvPutUploadJobTest(run_test_server.TestCaseWithServers,
         cwriter.destroy_cache()
 
     def test_symlinks_are_followed_only_once(self):
-        cwriter = arv_put.ArvPutUploadJob([self.tempdir_with_symlink])
+        cwriter = arv_put.ArvPutUploadJob([self.tempdir_with_symlink],
+                                          follow_links=True)
         cwriter.start(save_collection=False)
         self.assertIn('linkeddir1', cwriter.manifest_text())
         self.assertNotIn('linkeddir2', cwriter.manifest_text())

commit 3843210bdf340751795b8ce9903cf712661b94e7
Author: Lucas Di Pentima <lucas at curoverse.com>
Date:   Thu Apr 27 17:12:56 2017 -0300

    11579: Tests added.

diff --git a/sdk/python/arvados/commands/put.py b/sdk/python/arvados/commands/put.py
index ff2e403..d616f30 100644
--- a/sdk/python/arvados/commands/put.py
+++ b/sdk/python/arvados/commands/put.py
@@ -433,7 +433,7 @@ class ArvPutUploadJob(object):
             else:
                 self._traversed_links.add(real_dirpath)
         return dirs
-        
+
     def start(self, save_collection):
         """
         Start supporting thread & file uploading
diff --git a/sdk/python/tests/test_arv_put.py b/sdk/python/tests/test_arv_put.py
index 096f86a..ac8f00c 100644
--- a/sdk/python/tests/test_arv_put.py
+++ b/sdk/python/tests/test_arv_put.py
@@ -270,7 +270,8 @@ class ArvPutUploadJobTest(run_test_server.TestCaseWithServers,
         self.arvfile_write = getattr(arvados.arvfile.ArvadosFileWriter, 'write')
         # Temp dir to hold a symlink to other temp dir
         self.tempdir_with_symlink = tempfile.mkdtemp()
-        os.symlink(self.tempdir, os.path.join(self.tempdir_with_symlink, 'linkeddir'))
+        os.symlink(self.tempdir, os.path.join(self.tempdir_with_symlink, 'linkeddir1'))
+        os.symlink(self.tempdir, os.path.join(self.tempdir_with_symlink, 'linkeddir2'))
 
     def tearDown(self):
         super(ArvPutUploadJobTest, self).tearDown()
@@ -282,7 +283,22 @@ class ArvPutUploadJobTest(run_test_server.TestCaseWithServers,
     def test_symlinks_are_followed_by_default(self):
         cwriter = arv_put.ArvPutUploadJob([self.tempdir_with_symlink])
         cwriter.start(save_collection=False)
-        self.assertIn('linkeddir', cwriter.manifest_text())
+        self.assertIn('linkeddir1', cwriter.manifest_text())
+        cwriter.destroy_cache()
+
+    def test_symlinks_are_followed_only_once(self):
+        cwriter = arv_put.ArvPutUploadJob([self.tempdir_with_symlink])
+        cwriter.start(save_collection=False)
+        self.assertIn('linkeddir1', cwriter.manifest_text())
+        self.assertNotIn('linkeddir2', cwriter.manifest_text())
+        cwriter.destroy_cache()
+
+    def test_symlinks_are_not_followed_when_requested(self):
+        cwriter = arv_put.ArvPutUploadJob([self.tempdir_with_symlink],
+                                          follow_links=False)
+        cwriter.start(save_collection=False)
+        self.assertNotIn('linkeddir1', cwriter.manifest_text())
+        self.assertNotIn('linkeddir2', cwriter.manifest_text())
         cwriter.destroy_cache()
 
     def test_writer_works_without_cache(self):

commit b92089c1674dcc99184a36b7094ac72ffc787922
Author: Lucas Di Pentima <lucas at curoverse.com>
Date:   Thu Apr 27 16:51:31 2017 -0300

    11579: Added symlinked dir traversal as the default behavior.
    Added flag to disable this and ignore symlinked dirs: --no-follow-links.

diff --git a/sdk/python/arvados/commands/put.py b/sdk/python/arvados/commands/put.py
index 4251075..ff2e403 100644
--- a/sdk/python/arvados/commands/put.py
+++ b/sdk/python/arvados/commands/put.py
@@ -186,6 +186,17 @@ Do not continue interrupted uploads from cached state.
 """)
 
 _group = run_opts.add_mutually_exclusive_group()
+_group.add_argument('--follow-links', action='store_true', default=True,
+                    dest='follow_links', help="""
+Traverse directory symlinks (default).
+Multiple symlinks pointing to the same directory will only be followed once.
+""")
+_group.add_argument('--no-follow-links', action='store_false', dest='follow_links',
+                    help="""
+Do not traverse directory symlinks.
+""")
+
+_group = run_opts.add_mutually_exclusive_group()
 _group.add_argument('--cache', action='store_true', dest='use_cache', default=True,
                     help="""
 Save upload state in a cache file for resuming (default).
@@ -361,7 +372,8 @@ class ArvPutUploadJob(object):
                  ensure_unique_name=False, num_retries=None,
                  put_threads=None, replication_desired=None,
                  filename=None, update_time=60.0, update_collection=None,
-                 logger=logging.getLogger('arvados.arv_put'), dry_run=False):
+                 logger=logging.getLogger('arvados.arv_put'), dry_run=False,
+                 follow_links=True):
         self.paths = paths
         self.resume = resume
         self.use_cache = use_cache
@@ -394,6 +406,8 @@ class ArvPutUploadJob(object):
         self.logger = logger
         self.dry_run = dry_run
         self._checkpoint_before_quit = True
+        self.follow_links = follow_links
+        self._traversed_links = set()
 
         if not self.use_cache and self.resume:
             raise ArvPutArgumentConflict('resume cannot be True when use_cache is False')
@@ -405,6 +419,21 @@ class ArvPutUploadJob(object):
         # Load cached data if any and if needed
         self._setup_state(update_collection)
 
+    def _check_traversed_dir_links(self, root, dirs):
+        """
+        Remove from the 'dirs' list the already traversed directory symlinks,
+        register the new dir symlinks as traversed.
+        """
+        for d in [d for d in dirs if os.path.isdir(os.path.join(root, d)) and
+                  os.path.islink(os.path.join(root, d))]:
+            real_dirpath = os.path.realpath(os.path.join(root, d))
+            if real_dirpath in self._traversed_links:
+                dirs.remove(d)
+                self.logger.warning("Skipping '{}' symlink to directory '{}' because it was already uploaded".format(os.path.join(root, d), real_dirpath))
+            else:
+                self._traversed_links.add(real_dirpath)
+        return dirs
+        
     def start(self, save_collection):
         """
         Start supporting thread & file uploading
@@ -424,7 +453,12 @@ class ArvPutUploadJob(object):
                     prefixdir = path = os.path.abspath(path)
                     if prefixdir != '/':
                         prefixdir += '/'
-                    for root, dirs, files in os.walk(path):
+                    # If following symlinks, avoid recursive traversals
+                    if self.follow_links and os.path.islink(path):
+                        self._traversed_links.add(os.path.realpath(path))
+                    for root, dirs, files in os.walk(path, followlinks=self.follow_links):
+                        if self.follow_links:
+                            dirs = self._check_traversed_dir_links(root, dirs)
                         # Make os.walk()'s dir traversing order deterministic
                         dirs.sort()
                         files.sort()
@@ -798,14 +832,27 @@ class ArvPutUploadJob(object):
         return datablocks
 
 
-def expected_bytes_for(pathlist):
+def expected_bytes_for(pathlist, follow_links=True):
     # Walk the given directory trees and stat files, adding up file sizes,
     # so we can display progress as percent
+    linked_dirs = set()
     bytesum = 0
     for path in pathlist:
         if os.path.isdir(path):
-            for filename in arvados.util.listdir_recursive(path):
-                bytesum += os.path.getsize(os.path.join(path, filename))
+            for root, dirs, files in os.walk(path, followlinks=follow_links):
+                if follow_links:
+                    # Skip those linked dirs that were visited more than once.
+                    for d in [x for x in dirs if os.path.islink(os.path.join(root, x))]:
+                        d_realpath = os.path.realpath(os.path.join(root, d))
+                        if d_realpath in linked_dirs:
+                            # Linked dir already visited, skip it.
+                            dirs.remove(d)
+                        else:
+                            # Will only visit this dir once
+                            linked_dirs.add(d_realpath)
+                # Sum file sizes
+                for f in files:
+                    bytesum += os.path.getsize(os.path.join(root, f))
         elif not os.path.isfile(path):
             return None
         else:
@@ -893,7 +940,7 @@ def main(arguments=None, stdout=sys.stdout, stderr=sys.stderr):
     # uploaded, the expected bytes calculation can take a moment.
     if args.progress and any([os.path.isdir(f) for f in args.paths]):
         logger.info("Calculating upload size, this could take some time...")
-    bytes_expected = expected_bytes_for(args.paths)
+    bytes_expected = expected_bytes_for(args.paths, follow_links=args.follow_links)
 
     try:
         writer = ArvPutUploadJob(paths = args.paths,
@@ -910,7 +957,8 @@ def main(arguments=None, stdout=sys.stdout, stderr=sys.stderr):
                                  ensure_unique_name = True,
                                  update_collection = args.update_collection,
                                  logger=logger,
-                                 dry_run=args.dry_run)
+                                 dry_run=args.dry_run,
+                                 follow_links=args.follow_links)
     except ResumeCacheConflict:
         logger.error("\n".join([
             "arv-put: Another process is already uploading this data.",

commit f517c9897428fd3c50a269b494b6b912cae291df
Author: Lucas Di Pentima <lucas at curoverse.com>
Date:   Thu Apr 27 13:54:32 2017 -0300

    11579: Test proving the bug: arv-put does not follow symlinks.

diff --git a/sdk/python/tests/test_arv_put.py b/sdk/python/tests/test_arv_put.py
index 286a22e..096f86a 100644
--- a/sdk/python/tests/test_arv_put.py
+++ b/sdk/python/tests/test_arv_put.py
@@ -268,12 +268,22 @@ class ArvPutUploadJobTest(run_test_server.TestCaseWithServers,
             with open(os.path.join(self.small_files_dir, str(i)), 'w') as f:
                 f.write(data + str(i))
         self.arvfile_write = getattr(arvados.arvfile.ArvadosFileWriter, 'write')
+        # Temp dir to hold a symlink to other temp dir
+        self.tempdir_with_symlink = tempfile.mkdtemp()
+        os.symlink(self.tempdir, os.path.join(self.tempdir_with_symlink, 'linkeddir'))
 
     def tearDown(self):
         super(ArvPutUploadJobTest, self).tearDown()
         shutil.rmtree(self.tempdir)
         os.unlink(self.large_file_name)
         shutil.rmtree(self.small_files_dir)
+        shutil.rmtree(self.tempdir_with_symlink)
+
+    def test_symlinks_are_followed_by_default(self):
+        cwriter = arv_put.ArvPutUploadJob([self.tempdir_with_symlink])
+        cwriter.start(save_collection=False)
+        self.assertIn('linkeddir', cwriter.manifest_text())
+        cwriter.destroy_cache()
 
     def test_writer_works_without_cache(self):
         cwriter = arv_put.ArvPutUploadJob(['/dev/null'], resume=False)

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