René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"If `diff.external` is set, diffing via API fails silently as external tool isn't understood","articleBody":"GitPython version: 3.1.42.\r\n\r\n```python\r\nfrom git import Repo\r\n\r\nrepo = Repo(\".\")\r\nprint(repo.index.diff(\"HEAD\"))\r\nprint(repo.index.diff(\"HEAD\", create_patch=True))\r\n\r\nprint(repo.index.diff(None))\r\nprint(repo.index.diff(None, create_patch=True))\r\n```\r\n\r\nprints\r\n\r\n```python\r\n[\u003cgit.diff.Diff object at 0x10cbb08b0\u003e]\r\n[]\r\n[\u003cgit.diff.Diff object at 0x103d49d30\u003e]\r\n[]\r\n```\r\n\r\n`R=True` workaround mentioned in #852 does not help either:\r\n\r\n```python\r\nprint(repo.index.diff(\"HEAD\", create_patch=True, R=True))\r\n# []\r\n```\r\n\r\nThis also happens when I try to diff tree against index or working tree\r\n\r\n```python\r\nprint(repo.head.commit.diff(None, create_patch=True))\r\nprint(repo.head.commit.diff(None))\r\n\r\nprint(repo.head.commit.diff())\r\nprint(repo.head.commit.diff(create_patch=True))\r\n\r\n```\r\n\r\nreturns\r\n\r\n```python\r\n[]\r\n[\u003cgit.diff.Diff object at 0x103d69670\u003e, \u003cgit.diff.Diff object at 0x103d699d0\u003e]\r\n[]\r\n[\u003cgit.diff.Diff object at 0x103d69700\u003e]\r\n```\r\n\r\nIt looks like using `create_patch=True` when comparison includes index or working tree always returns empty list. So right now only way to reliably use `create_patch=True` is to diff tree against tree.\r\n\r\n_Originally posted by @can-taslicukur in https://github.com/gitpython-developers/GitPython/issues/852#issuecomment-1951424734_\r\n            ","author":{"url":"https://github.com/can-taslicukur","@type":"Person","name":"can-taslicukur"},"datePublished":"2024-02-18T20:18:32.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":17},"url":"https://github.com/1828/GitPython/issues/1828"}