"Mike Mueller via GitGitGadget" <gitgitgadget@xxxxxxxxx> writes: > From: Mike Mueller <mike.mueller@xxxxxxxxxx> > > git p4 unshelve was failing with these errors: > > fatal: Not a valid object name HEAD0 > Command failed: git cat-file commit HEAD^0 > > (git version 2.21.0.windows.1, python 2.7.16) > > The pOpen call used by git-p4 to invoke the git command can take either a > string or an array as a first argument. The array form is preferred > because platform-specific escaping of special characters will be > handled automatically.(https://docs.python.org/2/library/subprocess.html) > The extractLogMessageFromGitCommit method was, however, using the string > form and so the caret (^) character in the HEAD^0 argument was not being > escaped on Windows. The caret happens to be the escape character, which > is why the git command was receiving HEAD0. In the output from git grep 'read_pipe_lines("' together with a few hits to harmless constant command line, we find this line diff = read_pipe_lines("git diff-tree -r %s \"%s^\" \"%s\"" % (self.diffOpts, id, id)) Would the caret we see there cause a similar problem? It would end up running something like $ git diff-tree -r -M "HEAD^" "HEAD"
