add missing update example snippet

Author: psifertex

__init__.py

@@ -58,9 +58,8 @@
     src_examples = os.path.join(os.path.dirname(os.path.realpath(__file__)), "update_example_snippets.py")
     if not os.path.exists(dst_examples):
         shutil.copy(src_examples, dst_examples)
-
 except IOError:
-    log_error("Unable to create %s or unable to add example updater" % snippetPath)
+    log_error("Unable to create %s or unable to add example updater, please report this bug" % snippetPath)
 
 
 def includeWalk(dir, includeExt):

update_example_snippets.py

@@ -0,0 +1,56 @@
+# Update or download example snippets
+#
+# Automatically download and update a collection of snippets to your local snippet folder
+
+from zipfile import ZipFile
+from tempfile import TemporaryFile
+import os
+
+#TODO: Merge remote with local description or hotkey changes (AKA: if filename matches, skip the first two lines, truncate, re-write the rest)
+
+domain = b'https://gist.github.com'
+path = b'/psifertex/6fbc7532f536775194edd26290892ef7'	# Feel free to adapt to your own setup
+subfolder = 'examples'									# Change to save the snippets to a different sub-folder
+tab2space = False
+width = 4
+
+def download(url):
+	provider = next(iter(DownloadProvider)).create_instance()
+	code, data = provider.get_response(url)
+	if code == 0:
+		return data
+	else:
+		raise ConnectionError("Unsuccessful download of %s" % url)
+
+def update_snippets():
+	if not interaction.show_message_box('Warning', "Use at your own risk. Do you want to automatically overwrite local snippets from gist?", buttons=MessageBoxButtonSet.YesNoButtonSet):
+		return
+	snippetPath = os.path.realpath(os.path.join(user_plugin_path(), '..', 'snippets', subfolder))
+	if not os.path.isdir(snippetPath):
+		os.makedirs(snippetPath)
+	url = domain + path
+	log_info("Downloading from: %s" % url)
+	source = download(url)
+	zipPath = [s for s in source.split(b'\"') if s.endswith(b'.zip')]
+	if len(zipPath) != 1:
+		log_error("Update failed.")
+		return
+	url = domain + zipPath[0]
+
+	log_info("Downloading from: %s" % url)
+	zip = download(url)
+	with TemporaryFile() as f:
+		f.write(zip)
+		with ZipFile(f, 'r') as zip:
+			for item in zip.infolist():
+				if item.filename[-1] == '/':
+					continue
+				basename = os.path.basename(item.filename)
+				with open(os.path.join(snippetPath, basename), 'wb') as f:
+					if tab2space:
+						f.write(zip.read(item).replace(b'\t', b' ' * width))
+					else:
+						f.write(zip.read(item))
+					log_info("Extracting %s" % item.filename)
+
+update_snippets()