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git-common-dir: make "modules/" per-working-directory directory

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Each working directory of main repository has its own working directory
of submodule, and in most cases they should be checked out to different
revisions. So they should be separated.

It looks logical to make submodule instances in different working
directories to reuse the submodule directory in the common dir of
the main repository, and probably this is how "checkout --to" should
initialize them called on the main repository, but they also should work
fine being completely separated clones.

Testfile t7410-submodule-checkout-to.sh demostrates the behavior.

Signed-off-by: Max Kirillov <max@max630.net>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Max Kirillov 2014-11-30 15:24:59 +07:00 committed by Junio C Hamano
parent ee4fb8435e
commit df56607dff
3 changed files with 52 additions and 4 deletions
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4
Documentation/gitrepository-layout.txt
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@ -248,9 +248,7 @@ commondir::
incomplete without the repository pointed by "commondir".
modules::
Contains the git-repositories of the submodules. This
directory is ignored if $GIT_COMMON_DIR is set and
"$GIT_COMMON_DIR/modules" will be used instead.
Contains the git-repositories of the submodules.
worktrees::
Contains worktree specific information of linked

2
path.c
View File

@ -92,7 +92,7 @@ static void replace_dir(struct strbuf *buf, int len, const char *newdir)
}
static const char *common_list[] = {
"/branches", "/hooks", "/info", "!/logs", "/lost-found", "/modules",
"/branches", "/hooks", "/info", "!/logs", "/lost-found",
"/objects", "/refs", "/remotes", "/worktrees", "/rr-cache", "/svn",
"config", "!gc.pid", "packed-refs", "shallow",
NULL

50
t/t7410-submodule-checkout-to.sh Executable file
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@ -0,0 +1,50 @@
#!/bin/sh
test_description='Combination of submodules and multiple workdirs'
. ./test-lib.sh
base_path=$(pwd -P)
test_expect_success 'setup: make origin' \
'mkdir -p origin/sub && ( cd origin/sub && git init &&
echo file1 >file1 &&
git add file1 &&
git commit -m file1 ) &&
mkdir -p origin/main && ( cd origin/main && git init &&
git submodule add ../sub &&
git commit -m "add sub" ) &&
( cd origin/sub &&
echo file1updated >file1 &&
git add file1 &&
git commit -m "file1 updated" ) &&
( cd origin/main/sub && git pull ) &&
( cd origin/main &&
git add sub &&
git commit -m "sub updated" )'
test_expect_success 'setup: clone' \
'mkdir clone && ( cd clone &&
git clone --recursive "$base_path/origin/main")'
rev1_hash_main=$(git --git-dir=origin/main/.git show --pretty=format:%h -q "HEAD~1")
rev1_hash_sub=$(git --git-dir=origin/sub/.git show --pretty=format:%h -q "HEAD~1")
test_expect_success 'checkout main' \
'mkdir default_checkout &&
(cd clone/main &&
git checkout --to "$base_path/default_checkout/main" "$rev1_hash_main")'
test_expect_failure 'can see submodule diffs just after checkout' \
'(cd default_checkout/main && git diff --submodule master"^!" | grep "file1 updated")'
test_expect_success 'checkout main and initialize independed clones' \
'mkdir fully_cloned_submodule &&
(cd clone/main &&
git checkout --to "$base_path/fully_cloned_submodule/main" "$rev1_hash_main") &&
(cd fully_cloned_submodule/main && git submodule update)'
test_expect_success 'can see submodule diffs after independed cloning' \
'(cd fully_cloned_submodule/main && git diff --submodule master"^!" | grep "file1 updated")'
test_done