changed algorithm for sleuthkit branches

setupSleuthkitBranch.py

@@ -9,13 +9,38 @@ import xml.etree.ElementTree as ET
 TSK_HOME=os.getenv("TSK_HOME",False)
 passed = 1
 
+def getSleuthkitBranchList():
+    # Returns the list of sleuthkit branches
+    cmd = ['git','branch','-a']
+    retdir = os.getcwd()
+    os.chdir(TSK_HOME)
+    output = subprocess.check_output(cmd)
+    branches = []
+    for branch in output.strip().split():
+        if branch.startswith('remotes/origin'):
+            branches.append(branch.split('/')[2])
+    os.chdir(retdir)
+    return branches
+
 def gitSleuthkitCheckout(branch):
+    '''
+        Checksout sleuthkit branch
+        Args:
+            branch: String, which branch to checkout
+    '''
+    # passed is a global variable that gets set to non-zero integer
+    # When an error occurs
     global passed
     cmd = ['git','checkout',branch]
     passed = subprocess.call(cmd,stdout=sys.stdout,cwd=TSK_HOME)
 
 def parseXML(xmlFile):
-    tree = ET.parse('TSKVersion.xml')
+    '''
+        parses the TSKVersion.xml file for sleuthkit version
+        Args:
+            xmlFile: String, xml file to parse
+    '''
+    tree = ET.parse(xmlFile)
     root = tree.getroot()
     for child in root:
         if child.attrib['name']=='TSK_VERSION':
@@ -39,13 +64,13 @@ def main():
         cmd=['git','rev-parse','--abbrev-ref','HEAD']
         output = subprocess.check_output(cmd)
         CURRENT_BRANCH=output.strip()
-
-    if CURRENT_BRANCH.startswith('custom-'):
-        gitSleuthkitCheckout(CURRENT_BRANCH)
-    else:
+    #check if sleuthkit has release branch
+    if CURRENT_BRANCH.startswith('release'):
         version = parseXML('TSKVersion.xml')
         RELEASE_BRANCH = "release-"+version
         gitSleuthkitCheckout(RELEASE_BRANCH)
+    elif CURRENT_BRANCH in getSleuthkitBranchList(): # check sleuthkit has same branch as autopsy
+        gitSleuthkitCheckout(CURRENT_BRANCH)
 
     if passed != 0:
         gitSleuthkitCheckout('develop')