Retrieval of information by release channel

tools/release/releases.py

Index: tools/release/releases.py
diff --git a/tools/release/releases.py b/tools/release/releases.py
index 5084aa6d0c6bc31a5b1a9a8160814d3249387d5c..a92af331046a168a1ec928ab101051d5050ffe98 100755
--- a/tools/release/releases.py
+++ b/tools/release/releases.py
@@ -444,6 +444,10 @@ class WriteOutput(Step):
   MESSAGE = "Print output."
 
   def Run(self):
+
+    output = {'releases':self['releases'],
+              'chrome_releases':self['chrome_releases']}
+
     if self._options.csv:
       with open(self._options.csv, "w") as f:
         writer = csv.DictWriter(f,
@@ -455,9 +459,9 @@ class WriteOutput(Step):
           writer.writerow(release)
     if self._options.json:
       with open(self._options.json, "w") as f:
-        f.write(json.dumps(self["releases"]))
+        f.write(json.dumps(output))
     if not self._options.csv and not self._options.json:
-      print self["releases"]  # pragma: no cover
+      print output  # pragma: no cover
 
 
 class Releases(ScriptsBase):
@@ -486,16 +490,44 @@ class Releases(ScriptsBase):
     }
 
   def _Steps(self):
+
     return [
       Preparation,
       RetrieveV8Releases,
       UpdateChromiumCheckout,
       RetrieveChromiumV8Releases,
       RietrieveChromiumBranches,
+      RetrieveInformationOnCanary,
       CleanUp,
-      WriteOutput,
+      WriteOutput
     ]
 
 
+class RetrieveInformationOnCanary(Step):
+  MESSAGE = 'Retrieves relevant information on the latest Chrome Canary'
+
+  def Run(self):
+
+    params = None
+    resultRaw = self.ReadURL('http://omahaproxy.appspot.com/all.json', params, wait_plan=[5, 20])
+    recentReleases = json.loads(resultRaw)
+    print recentReleases
+
+    allCanaries = []
+
+    for currentOS in recentReleases:
+      for currentVersion in currentOS['versions']:
+        currentCandidate = {'version':currentVersion['version'],
+                           'os':currentVersion['os'],
+                           'release_date': currentVersion['current_reldate'],
+                           'v8_version':currentVersion['v8_version']}
+
+        if currentVersion['channel'] == 'canary':
+          allCanaries.append(currentCandidate)
+
+    chromeReleases = {'canaries':allCanaries}
+    self['chrome_releases'] = chromeReleases
+
+
 if __name__ == "__main__":  # pragma: no cover
   sys.exit(Releases().Run())