René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Fetching a remote without a configured refspec raises ValueError","articleBody":"I found this easiest to reproduce by creating a bare clone of another repository.\n\nSet up like this:\n\n```\nben@earwig:~/test $ git init foo\nInitialized empty Git repository in /Users/ben/test/foo/.git/\nben@earwig:~/test $ cd foo\nben@earwig:~/test/foo [master] $ echo \"test\" \u003e test \u0026\u0026 git add test \u0026\u0026 git commit -m \"test\"\n[master (root-commit) 269c498] test\n 1 file changed, 1 insertion(+)\n create mode 100644 test\nben@earwig:~/test/foo [master] $ cd ..\nben@earwig:~/test $ git clone --bare foo bar\nCloning into bare repository 'bar'...\ndone.\n```\n\nNote the structure of the `config` file and that an ordinary `git fetch origin` works.\n\n```\nben@earwig:~/test $ cd bar\nben@earwig:~/test/bar [BARE:master] $ cat config\n[core]\n    repositoryformatversion = 0\n    filemode = true\n    bare = true\n    ignorecase = true\n    precomposeunicode = true\n[remote \"origin\"]\n    url = /Users/ben/test/foo\nben@earwig:~/test/bar [BARE:master] $ git fetch origin\nFrom /Users/ben/test/foo\n * branch            HEAD       -\u003e FETCH_HEAD\n```\n\nNow, here's the bug:\n\n```\nben@earwig:~/test/bar [BARE:master] $ python\nPython 2.7.10 (default, May 29 2015, 21:05:23)\n[GCC 4.2.1 Compatible Apple LLVM 6.1.0 (clang-602.0.53)] on darwin\nType \"help\", \"copyright\", \"credits\" or \"license\" for more information.\n\u003e\u003e\u003e import git\n\u003e\u003e\u003e git.Repo().remotes.origin.fetch()\nTraceback (most recent call last):\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\n  File \"/usr/local/lib/python2.7/site-packages/git/remote.py\", line 651, in fetch\n    res = self._get_fetch_info_from_stderr(proc, progress or RemoteProgress())\n  File \"/usr/local/lib/python2.7/site-packages/git/remote.py\", line 588, in _get_fetch_info_from_stderr\n    for err_line, fetch_line in zip(fetch_info_lines, fetch_head_info))\n  File \"/usr/local/lib/python2.7/site-packages/git/remote.py\", line 588, in \u003cgenexpr\u003e\n    for err_line, fetch_line in zip(fetch_info_lines, fetch_head_info))\n  File \"/usr/local/lib/python2.7/site-packages/git/remote.py\", line 249, in _from_line\n    raise ValueError(\"Failed to parse FETCH_HEAD line: %r\" % fetch_line)\nValueError: Failed to parse FETCH_HEAD line: u'269c498e56feb93e408ed4558c8138d750de8893\\t\\t/Users/ben/test/foo\\n'\n\u003e\u003e\u003e\n```\n\nIf I add a valid refspec to the config, it works:\n\n```\nben@earwig:~/test/bar [BARE:master] $ git config --add remote.origin.fetch +refs/heads/*:refs/heads/*\nben@earwig:~/test/bar [BARE:master] $ python\nPython 2.7.10 (default, May 29 2015, 21:05:23)\n[GCC 4.2.1 Compatible Apple LLVM 6.1.0 (clang-602.0.53)] on darwin\nType \"help\", \"copyright\", \"credits\" or \"license\" for more information.\n\u003e\u003e\u003e import git\n\u003e\u003e\u003e git.Repo().remotes.origin.fetch()\n[\u003cgit.remote.FetchInfo object at 0x11094a0a8\u003e]\n\u003e\u003e\u003e\n```\n","author":{"url":"https://github.com/earwig","@type":"Person","name":"earwig"},"datePublished":"2015-06-06T00:33:41.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/296/GitPython/issues/296"}