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author | Lars R. Damerow <lars@pixar.com> | 2010-03-17 12:55:53 -0700 |
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committer | Junio C Hamano <gitster@pobox.com> | 2010-03-28 09:43:20 -0700 |
commit | 8030e44215fe8f34edd57d711a35f2f0f97a0423 (patch) | |
tree | a50714bf8e3bb9879707c97c86d9f43bb3d636f7 /setup.c | |
parent | 502ffe3491bb6a3aff3f93e7eea19c01cf30c337 (diff) | |
download | git-8030e44215fe8f34edd57d711a35f2f0f97a0423.tar.gz |
Add support for GIT_ONE_FILESYSTEM
This patch makes git pay attention to the GIT_ONE_FILESYSTEM environment
variable. When that variable is set, git will stop searching for a
GIT_DIR when it attempts to cross a filesystem boundary.
When working in an environment with too many automount points to make
maintaining a GIT_CEILING_DIRECTORIES list enjoyable, GIT_ONE_FILESYSTEM
gives the option of turning all such attempts off with one setting.
Signed-off-by: Lars R. Damerow <lars@pixar.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'setup.c')
-rw-r--r-- | setup.c | 25 |
1 files changed, 25 insertions, 0 deletions
@@ -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); |