When an explicit '--git-dir' option points to a directory inside
the work tree, git treats it as if it were any other directory.
In particular, 'git status' lists it as untracked, while 'git add -A'
stages the metadata directory entirely
Add GIT_DIR to the list of excludes in setup_standard_excludes(),
while checking that GIT_DIR is not just '.git', in which case it
would be ignored by default, and that GIT_DIR is inside GIT_WORK_TREE
Although an analogous comparison of any given path against '.git'
is done in treat_path(), this does not seem to be the right place
to compare against GIT_DIR. Instead, the excludes provide an
effective mechanism of ignoring a file/directory, and adding GIT_DIR
as an exclude is equivalent of putting it into '.gitignore'. Function
setup_standard_excludes() was chosen because that is the place where
the excludes are initialized by the commands that are concerned about
excludes
Signed-off-by: Pasha Bolokhov <pasha.bolokhov@xxxxxxxxx>
---
Add a test and change the documentation which now reflects the
fact that 'setup_standard_excludes()' has to be called for
the setup purposes
Documentation/technical/api-directory-listing.txt | 4 +-
dir.c | 20 ++++++++
t/t2205-add-gitdir.sh | 61 +++++++++++++++++++++++
3 files changed, 83 insertions(+), 2 deletions(-)
create mode 100755 t/t2205-add-gitdir.sh
diff --git a/Documentation/technical/api-directory-listing.txt b/Documentation/technical/api-directory-listing.txt
index 7f8e78d..fd4a178 100644
--- a/Documentation/technical/api-directory-listing.txt
+++ b/Documentation/technical/api-directory-listing.txt
@@ -90,8 +90,8 @@ marked. If you to exclude files, make sure you have loaded index first.
`add_exclude()`.
* To add patterns from a file (e.g. `.git/info/exclude`), call
- `add_excludes_from_file()` , and/or set `dir.exclude_per_dir`. A
- short-hand function `setup_standard_excludes()` can be used to set
+ `add_excludes_from_file()` , and/or set `dir.exclude_per_dir`. The
+ short-hand function `setup_standard_excludes()` must be used to set
up the standard set of exclude settings.
* Set options described in the Data Structure section above.
diff --git a/dir.c b/dir.c
index 98bb50f..07e36f3 100644
--- a/dir.c
+++ b/dir.c
@@ -1588,6 +1588,26 @@ void setup_standard_excludes(struct dir_struct *dir)
{
const char *path;
char *xdg_path;
+ const char *gitdir = get_git_dir();
+
+ /* Add git directory to the ignores first */
+ if (strcmp(gitdir, ".git") != 0) { /* "--git-dir" has been given */
+ char ngit[PATH_MAX + 1];
+
+ /*
+ * See if GIT_DIR is inside the work tree; need to normalize
+ * 'gitdir' but 'get_git_work_tree()' always appears absolute
+ * and normalized
+ */
+ normalize_path_copy(ngit, real_path(absolute_path(gitdir)));
+
+ if (dir_inside_of(ngit, get_git_work_tree()) >= 0) {
+ struct exclude_list *el = add_exclude_list(dir, EXC_CMDL,
+ "--git-dir option");
+
+ add_exclude(gitdir, "", 0, el, 0);
+ }
+ }
dir->exclude_per_dir = ".gitignore";
path = git_path("info/exclude");
diff --git a/t/t2205-add-gitdir.sh b/t/t2205-add-gitdir.sh
new file mode 100755
index 0000000..3c6b853
--- /dev/null
+++ b/t/t2205-add-gitdir.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+#
+# Copyright (c) 2014 Pasha Bolokhov
+#
+
+test_description='alternative repository path specified by --git-dir is ignored by add and status'
+
+. ./test-lib.sh
+
+test_expect_success "setup" '
+ git --git-dir=meta init &&
+ for f in a b c d
+ do
+ echo "DATA" > "$f" || exit 1
+ done &&
+ mkdir subdir1 &&
+ for f in e f g h
+ do
+ echo "MORE DATA" > "subdir1/$f" || exit 1
+ done &&
+ mkdir subdir1/meta &&
+ echo "EVEN more Data" > subdir1/meta/aa &&
+ mkdir subdir1/ssubdir subdir1/ssubdir/meta &&
+ echo "So much more data" > subdir1/ssubdir/meta/aaa
+'
+
+test_expect_success "'git status' ignores the repository directory" '
+ git --git-dir=meta --work-tree=. status > status.out &&
+ test_might_fail grep meta status.out > out &&
+ ! test -s out
+'
+
+test_expect_success "'git add -A' ignores the repository directory" '
+ git --git-dir=meta --work-tree=. add -A &&
+ git --git-dir=meta --work-tree=. status --porcelain > status1.out &&
+ test_might_fail grep meta status1.out > out1 &&
+ ! test -s out1
+'
+
+test_expect_success "'git status' acknowledges files 'meta' if repository is not within work tree" '
+ test_might_fail rm -rf meta/ &&
+ (
+ cd subdir1 &&
+ git --git-dir=../meta init
+ git --git-dir=../meta --work-tree=. status --porcelain > status2.out &&
+ test_might_fail grep meta status2.out > out2 &&
+ test -s out2
+ )
+'
+
+test_expect_success "'git add -A' adds 'meta' if the repository is outside the work tree" '
+ (
+ cd subdir1 &&
+ git --git-dir=../meta --work-tree=. add -A &&
+ git --git-dir=../meta --work-tree=. status --porcelain > status3.out &&
+ test_might_fail grep meta status3.out > out3 &&
+ test -s out3
+ )
+'
+
+test_done
--
1.9.1
--
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