对Git子模块进行非子模块化，将所有代码带回核心存储库的最佳实践是什么?
当前回答
我已经创建了一个脚本，将子模块转换到一个简单的目录，同时保留所有的文件历史。它不会像其他解决方案那样受到git log——follow <file>问题的困扰。它也是一个非常简单的单行调用，可以为您完成所有工作。G 'luck。
它建立在Lucas Jenß的出色工作之上，在他的博客文章“将子模块集成到父存储库中”中描述了这一点，但是它自动化了整个过程，并清理了一些其他的极端情况。
最新的代码将在github上的https://github.com/jeremysears/scripts/blob/master/bin/git-submodule-rewrite上进行错误修复，但为了适当的stackoverflow回答协议，我在下面包含了完整的解决方案。
用法:
$ git-submodule-rewrite <submodule-name>
git-submodule-rewrite:
#!/usr/bin/env bash
# This script builds on the excellent work by Lucas Jenß, described in his blog
# post "Integrating a submodule into the parent repository", but automates the
# entire process and cleans up a few other corner cases.
# https://x3ro.de/2013/09/01/Integrating-a-submodule-into-the-parent-repository.html
function usage() {
echo "Merge a submodule into a repo, retaining file history."
echo "Usage: $0 <submodule-name>"
echo ""
echo "options:"
echo " -h, --help Print this message"
echo " -v, --verbose Display verbose output"
}
function abort {
echo "$(tput setaf 1)$1$(tput sgr0)"
exit 1
}
function request_confirmation {
read -p "$(tput setaf 4)$1 (y/n) $(tput sgr0)"
[ "$REPLY" == "y" ] || abort "Aborted!"
}
function warn() {
cat << EOF
This script will convert your "${sub}" git submodule into
a simple subdirectory in the parent repository while retaining all
contents and file history.
The script will:
* delete the ${sub} submodule configuration from .gitmodules and
.git/config and commit it.
* rewrite the entire history of the ${sub} submodule so that all
paths are prefixed by ${path}.
This ensures that git log will correctly follow the original file
history.
* merge the submodule into its parent repository and commit it.
NOTE: This script might completely garble your repository, so PLEASE apply
this only to a fresh clone of the repository where it does not matter if
the repo is destroyed. It would be wise to keep a backup clone of your
repository, so that you can reconstitute it if need be. You have been
warned. Use at your own risk.
EOF
request_confirmation "Do you want to proceed?"
}
function git_version_lte() {
OP_VERSION=$(printf "%03d%03d%03d%03d" $(echo "$1" | tr '.' '\n' | head -n 4))
GIT_VERSION=$(git version)
GIT_VERSION=$(printf "%03d%03d%03d%03d" $(echo "${GIT_VERSION#git version}" | tr '.' '\n' | head -n 4))
echo -e "${GIT_VERSION}\n${OP_VERSION}" | sort | head -n1
[ ${OP_VERSION} -le ${GIT_VERSION} ]
}
function main() {
warn
if [ "${verbose}" == "true" ]; then
set -x
fi
# Remove submodule and commit
git config -f .gitmodules --remove-section "submodule.${sub}"
if git config -f .git/config --get "submodule.${sub}.url"; then
git config -f .git/config --remove-section "submodule.${sub}"
fi
rm -rf "${path}"
git add -A .
git commit -m "Remove submodule ${sub}"
rm -rf ".git/modules/${sub}"
# Rewrite submodule history
local tmpdir="$(mktemp -d -t submodule-rewrite-XXXXXX)"
git clone "${url}" "${tmpdir}"
pushd "${tmpdir}"
local tab="$(printf '\t')"
local filter="git ls-files -s | sed \"s/${tab}/${tab}${path}\//\" | GIT_INDEX_FILE=\${GIT_INDEX_FILE}.new git update-index --index-info && mv \${GIT_INDEX_FILE}.new \${GIT_INDEX_FILE}"
git filter-branch --index-filter "${filter}" HEAD
popd
# Merge in rewritten submodule history
git remote add "${sub}" "${tmpdir}"
git fetch "${sub}"
if git_version_lte 2.8.4
then
# Previous to git 2.9.0 the parameter would yield an error
ALLOW_UNRELATED_HISTORIES=""
else
# From git 2.9.0 this parameter is required
ALLOW_UNRELATED_HISTORIES="--allow-unrelated-histories"
fi
git merge -s ours --no-commit ${ALLOW_UNRELATED_HISTORIES} "${sub}/master"
rm -rf tmpdir
# Add submodule content
git clone "${url}" "${path}"
rm -rf "${path}/.git"
git add "${path}"
git commit -m "Merge submodule contents for ${sub}"
git config -f .git/config --remove-section "remote.${sub}"
set +x
echo "$(tput setaf 2)Submodule merge complete. Push changes after review.$(tput sgr0)"
}
set -euo pipefail
declare verbose=false
while [ $# -gt 0 ]; do
case "$1" in
(-h|--help)
usage
exit 0
;;
(-v|--verbose)
verbose=true
;;
(*)
break
;;
esac
shift
done
declare sub="${1:-}"
if [ -z "${sub}" ]; then
>&2 echo "Error: No submodule specified"
usage
exit 1
fi
shift
if [ -n "${1:-}" ]; then
>&2 echo "Error: Unknown option: ${1:-}"
usage
exit 1
fi
if ! [ -d ".git" ]; then
>&2 echo "Error: No git repository found. Must be run from the root of a git repository"
usage
exit 1
fi
declare path="$(git config -f .gitmodules --get "submodule.${sub}.path")"
declare url="$(git config -f .gitmodules --get "submodule.${sub}.url")"
if [ -z "${path}" ]; then
>&2 echo "Error: Submodule not found: ${sub}"
usage
exit 1
fi
if ! [ -d "${path}" ]; then
>&2 echo "Error: Submodule path not found: ${path}"
usage
exit 1
fi
main
其他回答
Git rm——缓存了the_submodule_path 从.gitmodules文件中删除子模块部分，或者如果它是唯一的子模块，则删除该文件。 执行一个提交"removed submodule xyz" Git添加了_submodule_path 另一次提交“添加xyz的代码库”
我还没找到更简单的方法。你可以通过git commit -a把3-5压缩到一个步骤中——这取决于你的喜好。
从git 1.8.5(2013年11月)开始(没有保留子模块的历史):
mv yoursubmodule yoursubmodule_tmp
git submodule deinit yourSubmodule
git rm yourSubmodule
mv yoursubmodule_tmp yoursubmodule
git add yoursubmodule
将:
注销和卸载(即删除子模块的内容)(deinit，因此mv先)， 清理你的。gitmodules (rm)， 并删除父repo (rm)索引中表示子模块SHA1的特殊条目。
一旦子模块的删除完成(deinit和git rm)，您可以重命名文件夹为原来的名称，并将其作为常规文件夹添加到git repo中。
注意:如果子模块是由旧Git(< 1.8)创建的，您可能需要删除子模块本身中嵌套的.git文件夹，正如Simon East所评论的那样
如果你需要保留子模块的历史，请参阅jsears的答案，它使用git filter-branch。
我已经创建了一个脚本，将子模块转换到一个简单的目录，同时保留所有的文件历史。它不会像其他解决方案那样受到git log——follow <file>问题的困扰。它也是一个非常简单的单行调用，可以为您完成所有工作。G 'luck。
它建立在Lucas Jenß的出色工作之上，在他的博客文章“将子模块集成到父存储库中”中描述了这一点，但是它自动化了整个过程，并清理了一些其他的极端情况。
最新的代码将在github上的https://github.com/jeremysears/scripts/blob/master/bin/git-submodule-rewrite上进行错误修复，但为了适当的stackoverflow回答协议，我在下面包含了完整的解决方案。
用法:
$ git-submodule-rewrite <submodule-name>
git-submodule-rewrite:
#!/usr/bin/env bash
# This script builds on the excellent work by Lucas Jenß, described in his blog
# post "Integrating a submodule into the parent repository", but automates the
# entire process and cleans up a few other corner cases.
# https://x3ro.de/2013/09/01/Integrating-a-submodule-into-the-parent-repository.html
function usage() {
echo "Merge a submodule into a repo, retaining file history."
echo "Usage: $0 <submodule-name>"
echo ""
echo "options:"
echo " -h, --help Print this message"
echo " -v, --verbose Display verbose output"
}
function abort {
echo "$(tput setaf 1)$1$(tput sgr0)"
exit 1
}
function request_confirmation {
read -p "$(tput setaf 4)$1 (y/n) $(tput sgr0)"
[ "$REPLY" == "y" ] || abort "Aborted!"
}
function warn() {
cat << EOF
This script will convert your "${sub}" git submodule into
a simple subdirectory in the parent repository while retaining all
contents and file history.
The script will:
* delete the ${sub} submodule configuration from .gitmodules and
.git/config and commit it.
* rewrite the entire history of the ${sub} submodule so that all
paths are prefixed by ${path}.
This ensures that git log will correctly follow the original file
history.
* merge the submodule into its parent repository and commit it.
NOTE: This script might completely garble your repository, so PLEASE apply
this only to a fresh clone of the repository where it does not matter if
the repo is destroyed. It would be wise to keep a backup clone of your
repository, so that you can reconstitute it if need be. You have been
warned. Use at your own risk.
EOF
request_confirmation "Do you want to proceed?"
}
function git_version_lte() {
OP_VERSION=$(printf "%03d%03d%03d%03d" $(echo "$1" | tr '.' '\n' | head -n 4))
GIT_VERSION=$(git version)
GIT_VERSION=$(printf "%03d%03d%03d%03d" $(echo "${GIT_VERSION#git version}" | tr '.' '\n' | head -n 4))
echo -e "${GIT_VERSION}\n${OP_VERSION}" | sort | head -n1
[ ${OP_VERSION} -le ${GIT_VERSION} ]
}
function main() {
warn
if [ "${verbose}" == "true" ]; then
set -x
fi
# Remove submodule and commit
git config -f .gitmodules --remove-section "submodule.${sub}"
if git config -f .git/config --get "submodule.${sub}.url"; then
git config -f .git/config --remove-section "submodule.${sub}"
fi
rm -rf "${path}"
git add -A .
git commit -m "Remove submodule ${sub}"
rm -rf ".git/modules/${sub}"
# Rewrite submodule history
local tmpdir="$(mktemp -d -t submodule-rewrite-XXXXXX)"
git clone "${url}" "${tmpdir}"
pushd "${tmpdir}"
local tab="$(printf '\t')"
local filter="git ls-files -s | sed \"s/${tab}/${tab}${path}\//\" | GIT_INDEX_FILE=\${GIT_INDEX_FILE}.new git update-index --index-info && mv \${GIT_INDEX_FILE}.new \${GIT_INDEX_FILE}"
git filter-branch --index-filter "${filter}" HEAD
popd
# Merge in rewritten submodule history
git remote add "${sub}" "${tmpdir}"
git fetch "${sub}"
if git_version_lte 2.8.4
then
# Previous to git 2.9.0 the parameter would yield an error
ALLOW_UNRELATED_HISTORIES=""
else
# From git 2.9.0 this parameter is required
ALLOW_UNRELATED_HISTORIES="--allow-unrelated-histories"
fi
git merge -s ours --no-commit ${ALLOW_UNRELATED_HISTORIES} "${sub}/master"
rm -rf tmpdir
# Add submodule content
git clone "${url}" "${path}"
rm -rf "${path}/.git"
git add "${path}"
git commit -m "Merge submodule contents for ${sub}"
git config -f .git/config --remove-section "remote.${sub}"
set +x
echo "$(tput setaf 2)Submodule merge complete. Push changes after review.$(tput sgr0)"
}
set -euo pipefail
declare verbose=false
while [ $# -gt 0 ]; do
case "$1" in
(-h|--help)
usage
exit 0
;;
(-v|--verbose)
verbose=true
;;
(*)
break
;;
esac
shift
done
declare sub="${1:-}"
if [ -z "${sub}" ]; then
>&2 echo "Error: No submodule specified"
usage
exit 1
fi
shift
if [ -n "${1:-}" ]; then
>&2 echo "Error: Unknown option: ${1:-}"
usage
exit 1
fi
if ! [ -d ".git" ]; then
>&2 echo "Error: No git repository found. Must be run from the root of a git repository"
usage
exit 1
fi
declare path="$(git config -f .gitmodules --get "submodule.${sub}.path")"
declare url="$(git config -f .gitmodules --get "submodule.${sub}.url")"
if [ -z "${path}" ]; then
>&2 echo "Error: Submodule not found: ${sub}"
usage
exit 1
fi
if ! [ -d "${path}" ]; then
>&2 echo "Error: Submodule path not found: ${path}"
usage
exit 1
fi
main
下面是@gyim的回答的一个稍微改进的版本(IMHO)。他在主工作副本中做了很多危险的改变，我认为在独立的克隆上操作，然后在最后将它们合并在一起要容易得多。
在一个单独的目录中(使错误更容易清理并再次尝试)检出顶部回购和子回购。
git clone ../main_repo main.tmp
git clone ../main_repo/sub_repo sub.tmp
首先编辑subrepo以将所有文件移动到所需的子目录中
cd sub.tmp
mkdir sub_repo_path
git mv `ls | grep -v sub_repo_path` sub_repo_path/
git commit -m "Moved entire subrepo into sub_repo_path"
注意头部
SUBREPO_HEAD=`git reflog | awk '{ print $1; exit; }'`
现在从主回购中删除子回购
cd ../main.tmp
rmdir sub_repo_path
vi .gitmodules # remove config for submodule
git add -A
git commit -m "Removed submodule sub_repo_path in preparation for merge"
最后，合并它们
git fetch ../sub.tmp
# remove --allow-unrelated-histories if using git older than 2.9.0
git merge --allow-unrelated-histories $SUBREPO_HEAD
并完成了!安全而且没有任何魔法。
这里有很多答案，但它们似乎都过于复杂，可能不能达到你想要的效果。我相信大多数人都想保留他们的历史。
在这个例子中，主repo将是git@site.com:main/main.git，子模块repo将是git@site.com:main/child.git。这假设子模块位于父repo的根目录中。根据需要调整说明书。
首先克隆父repo并删除旧的子模块。
git clone git@site.com:main/main.git
git submodule deinit child
git rm child
git add --all
git commit -m "remove child submodule"
现在我们将把子回购添加到主回购的上游。
git remote add upstream git@site.com:main/child.git
git fetch upstream
git checkout -b merge-prep upstream/master
下一步假设您希望将merge-prep分支上的文件移动到与上面的子模块相同的位置，尽管您可以通过更改文件路径轻松更改位置。
mkdir child
将除.git文件夹外的所有文件夹和文件移动到子文件夹中。
git add --all
git commit -m "merge prep"
现在您可以简单地将文件合并回主分支。
git checkout master
git merge merge-prep # --allow-unrelated-histories merge-prep flag may be required
在运行git push之前，环顾四周，确保一切看起来都很好
你现在必须记住的一件事是，git日志默认情况下不会跟踪移动的文件，但是通过运行git log——follow filename，你可以看到你文件的完整历史。
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