| commit | ce9b8aab5d9a40a84b4868fa890654900ab2d4cc | [log] [tgz] |
|---|---|---|
| author | Johannes Schindelin <johannes.schindelin@gmx.de> | Mon Mar 13 21:10:42 2017 +0100 |
| committer | Junio C Hamano <gitster@pobox.com> | Tue Mar 14 14:24:16 2017 -0700 |
| tree | 32efa4a4d030ab0d31a5d69aee9436b3a1874320 | |
| parent | df380d58ece2a745e4283ef4de8dfeea560546bb [diff] |
setup_git_directory_1(): avoid changing global state For historical reasons, Git searches for the .git/ directory (or the .git file) by changing the working directory successively to the parent directory of the current directory, until either anything was found or until a ceiling or a mount point is hit. Further global state may be changed in case a .git/ directory was found. We do have a use case, though, where we would like to find the .git/ directory without having any global state touched, though: when we read the early config e.g. for the pager or for alias expansion. Let's just move all of code that changes any global state out of the function `setup_git_directory_gently_1()` into `setup_git_directory_gently()`. In subsequent patches, we will use the _1() function in a new `discover_git_directory()` function that we will then use for the early config code. Note: the new loop is a *little* tricky, as we have to handle the root directory specially: we cannot simply strip away the last component including the slash, as the root directory only has that slash. To remedy that, we introduce the `min_offset` variable that holds the minimal length of an absolute path, and using that to special-case the root directory, including an early exit before trying to find the parent of the root directory. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.
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