always call git from invoke

Author: minrk

nbviewer/utils.py

@@ -201,9 +201,9 @@ def parse_header_links(value):
     return links
 
 
-def git_info(path):
+def git_info(path, force_git=False):
     """Return some git info"""
-    if os.path.exists(GIT_INFO_JSON):
+    if os.path.exists(GIT_INFO_JSON) and not force_git:
         with open(GIT_INFO_JSON, 'r') as f:
             return json.load(f)
     command = ['git', 'log', '-1', '--format=%H\n%s\n%cD']

tasks.py

@@ -157,7 +157,7 @@ def git_info(ctx):
     sys.path.insert(0, os.path.join(APP_ROOT, "nbviewer"))
     from utils import git_info, GIT_INFO_JSON
     try:
-        info = git_info(APP_ROOT)
+        info = git_info(APP_ROOT, force_git=True)
     except Exception as e:
         print("Failed to get git info", e)
         return