Added arguments to importer script

Repository and json file will be mandotory inputs to script file.
As part of this change we do not need to clone/remove CMSIS repository

Author: deepikabhavnani

tools/importer/importer.py

@@ -1,9 +1,8 @@
-import os, json, stat, sys, shutil, errno, subprocess
+import os, json, stat, sys, shutil, errno, subprocess, logging
 from os.path import dirname, abspath, basename, join
+import argparse
 
 ROOT = abspath(join(dirname(__file__), "../.."))
-CMSIS_REPO = "CMSIS_Repo"
-CMSIS_PATH = abspath(join(dirname(__file__), CMSIS_REPO))
 RTOS_UPDATE_BRANCH = "rtos_update"
 
 def del_file(name):
@@ -30,36 +29,36 @@ def rmtree(top):
 def copy_file(file, path):
     try:
         shutil.copy(file, path)
-    except IOError as e:        
+    except IOError as e:
         if e.errno != errno.ENOENT:
             raise
         ## Create directories
         os.makedirs(os.path.dirname(path))
         shutil.copy(file, path)
     print os.path.relpath(path, ROOT)
-    
-def copy_folder(folder, path):    
-    files = os.listdir(folder)    
+
+def copy_folder(folder, path):
+    files = os.listdir(folder)
     for file in files:
         abs_src_file = os.path.join(folder, file)
         if os.path.isfile(abs_src_file):
             abs_dst_file = os.path.join(path, file)
             copy_file(abs_src_file, abs_dst_file)
-    
+
 def run_cmd(command, exit_on_failure=False):
-    """ Passes a command to the system and returns a True/False result once the 
+    """ Passes a command to the system and returns a True/False result once the
         command has been executed, indicating success/failure. Commands are passed
-        as a list of tokens. 
+        as a list of tokens.
         E.g. The command 'git remote -v' would be passed in as ['git', 'remote', '-v']
     """
     return_code = subprocess.call(command, shell=True)
-    
+
     if return_code:
         print("The command %s failed with return code: %s"
                         %(' '.join(command), return_code))
         if exit_on_failure:
             sys.exit(1)
-    
+
     return return_code
 
 def remove_repo(folder):
@@ -76,47 +75,71 @@ def get_repo(repo, branch, folder):
     remove_repo(folder)
     clone_cmd = ['git', 'clone', repo, "-b", branch, "--depth", '1', folder]
     run_cmd(clone_cmd, exit_on_failure=True)
-  
+
 if __name__ == "__main__":
-    
+
+    parser = argparse.ArgumentParser(description=__doc__,
+                                     formatter_class=argparse.RawDescriptionHelpFormatter)
+    parser.add_argument('-l', '--log-level',
+                        help="Level for providing logging output",
+                        default='INFO')
+    parser.add_argument('-r',   '--repo-path',
+                        help="Git Repository to be imported",
+                        default=None)
+    parser.add_argument('-c', '--config-file',
+                        help="Configuration file",
+                        default=None)
+    args = parser.parse_args()
+
+    default = getattr(logging, 'INFO')
+    level = getattr(logging, args.log_level.upper(), default)
+
+    # Set logging level
+    logging.basicConfig(level=level)
+    rel_log = logging.getLogger("Importer")
+
+    if (args.repo_path is None) or (args.config_file is None) :
+        rel_log.error("Repository path and config file required as input. Use \"--help\" for more info.")
+        exit(1)
+
+    repo = os.path.abspath(args.repo_path)
+    if not os.path.exists(repo):
+        rel_log.error("%s not found.", args.repo_path)
+        exit(1)
+
+    json_file = os.path.abspath(args.config_file)
+    if not os.path.isfile(json_file):
+        rel_log.error("%s not found." , args.config_file)
+        exit(1)
+
     # Read configuration data
-    with open(os.path.join(os.path.dirname(__file__), "cmsis_importer.json"), 'r') as config:        
+    with open(json_file, 'r') as config:
         json_data = json.load(config)
-    config = json_data["config"]
-    cmsis_repo = config['cmsis_repo']
-    cmsis_branch = config['cmsis_branch']    
     data_files = json_data["files"]
     data_folders = json_data["folders"]
-    
-    print "Fetching git repo"
-    get_repo(cmsis_repo, cmsis_branch, CMSIS_REPO)
-    
+
     ## Remove all files listed in .json from mbed-os repo to avoid duplications
     print "Cleaning up:"
     for file in data_files:
         cmsis_file =  file['cmsis_file']
         del_file(os.path.basename(cmsis_file))
-    
+
     for folder in data_folders:
-        cmsis_folder =  os.path.join(CMSIS_PATH, folder['cmsis_folder'])
-        files = os.listdir(cmsis_folder)        
-        for file in files:            
+        files = os.listdir(repo_path)
+        for file in files:
             del_file(os.path.basename(file))
 
-    ## Copy all the CMSIS files listed in json file to mbed-os    
-    print "Files Copied:"    
-    for file in data_files:        
-        cmsis_file =  os.path.join(CMSIS_PATH, file['cmsis_file'])
+    ## Copy all the CMSIS files listed in json file to mbed-os
+    print "Files Copied:"
+    for file in data_files:
+        repo_file =  os.path.join(repo_path, file['cmsis_file'])
         mbed_path =  os.path.join(ROOT, file['mbed_file'])
-        copy_file(cmsis_file, mbed_path)
+        copy_file(repo_file, mbed_path)
 
     for folder in data_folders:
-        cmsis_folder =  os.path.join(CMSIS_PATH, folder['cmsis_folder'])
-        mbed_path =  os.path.join(ROOT, folder['mbed_folder'])        
-        copy_folder(cmsis_folder, mbed_path)
-
-    #Remove CMSIS Repo
-    remove_repo(CMSIS_REPO)
+        repo_folder =  os.path.join(repo_path, folder['cmsis_folder'])
+        mbed_path =  os.path.join(ROOT, folder['mbed_folder'])
+        copy_folder(repo_folder, mbed_path)
 
     ## Create new branch with all changes
     create_branch = ['git', 'checkout', '-b', RTOS_UPDATE_BRANCH]
@@ -127,17 +150,10 @@ def get_repo(repo, branch, folder):
 
     commit_branch = ['git', 'commit', '-m', "CMSIS/RTX: Update CMSIS/RTX"]
     run_cmd(commit_branch, exit_on_failure=True)
-      
+
     ## Apply commits specific to mbed-os changes
     mbed_sha = json_data["Mbed_sha"]
 
     for sha in mbed_sha:
         cherry_pick_sha = ['git', 'cherry-pick', sha]
         run_cmd(cherry_pick_sha, exit_on_failure=True)
-        
-
-    
-    
-
-    
-