Merge pull request #198 from jakub-nt/ENT-11437

ENT-11437: `cfbs init` no longer displays a traceback when `git` is not found

cfbs/commands.py

@@ -53,6 +53,7 @@
 )
 from cfbs.index import _VERSION_INDEX, Index
 from cfbs.git import (
+    git_exists,
     is_git_repo,
     git_commit,
     git_get_config,
@@ -178,6 +179,10 @@ def init_command(index=None, masterfiles=None, non_interactive=False) -> int:
         do_git = True if do_git == "yes" else False
 
     if do_git is True:
+        if not git_exists():
+            print("Command 'git' was not found")
+            return 1
+
         user_name = get_args().git_user_name
         if not user_name:
             user_name = git_get_config("user.name")

cfbs/git.py

@@ -18,6 +18,14 @@ class CFBSGitError(Exception):
     pass
 
 
+def git_exists():
+    try:
+        check_call(["git", "--version"], stdout=DEVNULL)
+        return True
+    except FileNotFoundError:
+        return False
+
+
 def ls_remote(remote, branch):
     """Returns the hash of the commit that the current HEAD of a given branch
     on a given remote is pointing to.