diff options
| -rw-r--r-- | Documentation/git.txt | 6 | ||||
| -rw-r--r-- | setup.c | 25 |
2 files changed, 31 insertions, 0 deletions
diff --git a/Documentation/git.txt b/Documentation/git.txt index 4e00b315ff..bf1b45eef1 100644 --- a/Documentation/git.txt +++ b/Documentation/git.txt @@ -530,6 +530,12 @@ git so take care if using Cogito etc. a GIT_DIR set on the command line or in the environment. (Useful for excluding slow-loading network directories.) +'GIT_ONE_FILESYSTEM':: + If set to a true value ("true" or a non-zero integer), stop at + filesystem boundaries when looking for a repository directory. + Like 'GIT_CEILING_DIRECTORIES', it will not affect an explicit + respository directory set via 'GIT_DIR' or on the command line. + git Commits ~~~~~~~~~~~ 'GIT_AUTHOR_NAME':: @@ -323,6 +323,8 @@ const char *setup_git_directory_gently(int *nongit_ok) const char *gitdirenv; const char *gitfile_dir; int len, offset, ceil_offset, root_len; + int current_device = 0, one_filesystem = 0; + struct stat buf; /* * Let's assume that we are in a git repository. @@ -390,6 +392,12 @@ const char *setup_git_directory_gently(int *nongit_ok) * etc. */ offset = len = strlen(cwd); + one_filesystem = git_env_bool("GIT_ONE_FILESYSTEM", 0); + if (one_filesystem) { + if (stat(".", &buf)) + die_errno("failed to stat '.'"); + current_device = buf.st_dev; + } for (;;) { gitfile_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT); if (gitfile_dir) { @@ -422,6 +430,23 @@ const char *setup_git_directory_gently(int *nongit_ok) } die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT); } + if (one_filesystem) { + if (stat("..", &buf)) { + cwd[offset] = '\0'; + die_errno("failed to stat '%s/..'", cwd); + } + if (buf.st_dev != current_device) { + if (nongit_ok) { + if (chdir(cwd)) + die_errno("Cannot come back to cwd"); + *nongit_ok = 1; + return NULL; + } + cwd[offset] = '\0'; + die("Not a git repository (or any parent up to mount parent %s)\n" + "Stopping at filesystem boundary since GIT_ONE_FILESYSTEM is set.", cwd); + } + } if (chdir("..")) { cwd[offset] = '\0'; die_errno("Cannot change to '%s/..'", cwd); |