René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"No error returned if patching is aborted due to existing .orig file","articleBody":"Given the following `a.txt` file:\r\n\r\n```\r\n1\r\n2\r\n3\r\n\r\n```\r\n\r\nand the following `working.patch`:\r\n\r\n```\r\n--- a.txt\t2019-03-28 17:02:04.832004033 -0700\r\n+++ b.txt\t2019-03-28 17:02:34.999576803 -0700\r\n@@ -1,4 +1,4 @@\r\n-1\r\n+0\r\n 2\r\n 3\r\n\r\n```\r\n\r\nPatching will fail if `a.txt.orig` already exists:\r\n\r\n```\r\n$ touch a.txt.orig\r\n$ ./patch.py --debug working.patch \u0026\u0026 echo Success!\r\n   DEBUG reading working.patch\r\n   DEBUG crlf: 0  lf: 5  cr: 0\t - file: b.txt hunk: 1\r\n   DEBUG -  1 hunks for a.txt\r\n   DEBUG total files: 1  total hunks: 1\r\n   DEBUG normalize filenames\r\n   DEBUG     patch type = plain\r\n   DEBUG     source = a.txt\r\n   DEBUG     target = b.txt\r\n   DEBUG processing 1/1:\t a.txt\r\n   DEBUG  hunk no.1 for file a.txt  -- is ready to be patched\r\n WARNING can't backup original file to a.txt.orig - aborting\r\nSuccess!\r\n\r\n$ cat a.txt\r\n1\r\n2\r\n3\r\n\r\n```\r\n\r\nbut the program will exit successfully instead of returning an error.","author":{"url":"https://github.com/fmarier","@type":"Person","name":"fmarier"},"datePublished":"2019-04-18T00:32:37.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/60/python-patch/issues/60"}