为什么 reposync 没有签出我在清单文件中指定的分支？

假设我有以下清单文件repo https://source.android.com/setup/develop/repo tool (MCVE https://stackoverflow.com/help/minimal-reproducible-example%20MCVE脚本包含在本文末尾）：

<?xml version="1.0" encoding="UTF-8"?>
<manifest>
  <remote name="repo1" fetch="/tmp/standalone_repo_expt/git.repos" />
  <remote name="repo2" fetch="/tmp/standalone_repo_expt/git.repos" />
  <default remote="repo1" revision="master" />
  <project name="repo1" path="repo1" />
  <project name="repo2" path="repo2"  />
</manifest>

我能跑repo init ...其次是repo sync成为一个品牌 新目录（即没有任何先前内容）。但是当我进入 所结果的repo1子目录（例如，/tmp/standalone_repo_expt/work_area/myproject/repo1/），并做一个git status我看到这个：

$ git status
Not currently on any branch.
nothing to commit, working tree clean

然后显示我看到的可用分支：

$ git branch -a
* (no branch)
  remotes/m/master -> repo1/master
  remotes/repo1/master

Why did repo sync不签出到默认分支（master） 我 中已指定default清单文件中的标记？

类似问题

这类似于为什么 git repo 不签出指定的分支？ https://stackoverflow.com/q/60921066/257924但是 不完全相同的问题。我的问题是没有分支机构已检查 出来，这似乎是错误的。我不应该做任何其他事情 除了repo sync，我不应该跑git checkout master在该清单文件管理的所有存储库中。

这似乎也类似于https://stackoverflow.com/a/66264612/257924 https://stackoverflow.com/a/66264612/257924但使用repo init -b master也不做我想做的事（没有 未签出存储库对这个问题的影响 指定的分支）。

https://stackoverflow.com/a/16917618/257924 https://stackoverflow.com/a/16917618/257924接近回答 这个问题，但没有解释为什么git branch -a才不是 包含master紧随其后的分支repo sync.

回购工具版本

The repo https://source.android.com/setup/develop/repo该工具于 2021 年 11 月 15 日通过以下方式直接从源中提取：

curl https://storage.googleapis.com/git-repo-downloads/repo https://storage.googleapis.com/git-repo-downloads/repo> /tmp/standalone_repo_expt/bin/repo

并将 PATH 设置为包括/tmp/standalone_repo_expt/bin.

MCVE https://stackoverflow.com/help/minimal-reproducible-example script

#!/bin/bash

function generate_repo {
  local repo_num="$1"
  mkdir -p /tmp/standalone_repo_expt/git.repos/repo$repo_num.git
  cd /tmp/standalone_repo_expt/git.repos/repo$repo_num.git
  git init --bare

  mkdir -p /tmp/standalone_repo_expt/work_area
  git clone /tmp/standalone_repo_expt/git.repos/repo$repo_num.git || {
    echo ERROR: git clone /tmp/standalone_repo_expt/git.repos/repo$repo_num.git
    exit 1
  }

  (
    cd repo$repo_num
    touch repo$repo_num.README
    git add repo$repo_num.README
    git commit -m "Add repo$repo_num.README"
    git push origin
  )

  (
    mkdir -p /tmp/standalone_repo_expt/work_area/repo$repo_num.test_clone
    cd /tmp/standalone_repo_expt/work_area/repo$repo_num.test_clone
    git clone /tmp/standalone_repo_expt/git.repos/repo$repo_num.git
    ls -ld repo$repo_num/*
    cd repo$repo_num
    git status
  )
}

# Remove the entire set of git repos for reproducable execution:
rm -rf /tmp/standalone_repo_expt

# Generate the git repositories, that we wish to combine into one
# larger directory, using the repo tool:
generate_repo 1
generate_repo 2

# Install the repo tool from source, not using any package managers:
mkdir -p /tmp/standalone_repo_expt/bin
curl https://storage.googleapis.com/git-repo-downloads/repo > /tmp/standalone_repo_expt/bin/repo 
test -s /tmp/standalone_repo_expt/bin/repo || {
  echo "ERROR: Failed to download repo tool into /tmp/standalone_repo_expt/bin/repo"
  exit 1
}
chmod a+rx /tmp/standalone_repo_expt/bin/repo
PATH="/tmp/standalone_repo_expt/bin:${PATH}"
which repo >& /dev/null || {
  echo "ASSERTION FAILED: Failed to install the repo tool."
  exit 1
}

# Create the git repository that houses the manifest that are needed
# by the repo tool that reference the git repositories generated
# above:
mkdir -p /tmp/standalone_repo_expt/git.repos/manifests.git
cd /tmp/standalone_repo_expt/git.repos/manifests.git
git init --bare

# Clone the manifest bare repo so we can add the manifest file, and
# push it back:
cd /tmp/standalone_repo_expt/work_area
git clone /tmp/standalone_repo_expt/git.repos/manifests.git || {
  echo ERROR: git clone /tmp/standalone_repo_expt/git.repos/manifests.git failed
  exit 1
}
cd manifests
cat > default.xml <<EOF.manifest
<?xml version="1.0" encoding="UTF-8"?>
<manifest>
  <remote name="repo1" fetch="/tmp/standalone_repo_expt/git.repos" />
  <remote name="repo2" fetch="/tmp/standalone_repo_expt/git.repos" />
  <default remote="repo1" revision="master" />
  <project name="repo1" path="repo1" />
  <project name="repo2" path="repo2"  />
</manifest>
EOF.manifest

cat default.xml

git add default.xml
git commit -m "Manifest file used by the repo tool"
git push origin || {
  echo ERROR: git push origin failed
  exit 1
}

set -x
mkdir -p /tmp/standalone_repo_expt/work_area/myproject
cd /tmp/standalone_repo_expt/work_area/myproject
repo init /tmp/standalone_repo_expt/git.repos/manifests.git
repo sync

cd repo1
pwd
ls -l
git status

repo不会为您创建本地分支。当您签出远程分支时，您最终会得到一个分离的头（因为无论如何您都无法在远程分支上进行提交）。

https://groups.google.com/g/repo-discuss/c/yPoPazTRgMA https://groups.google.com/g/repo-discuss/c/yPoPazTRgMA