bash GIT 致命：模棱两可的参数“HEAD”：未知的修订版或路径不在 Travis 的工作树中
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GIT fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree in Travis
提问by vcernomschi
I have the following configuration:
git version 1.8.5.6
GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu)
我有以下配置：
git version 1.8.5.6
GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu)
I called zgit_info_updateand also tried to make commit. But I am still encountering with issue when run git diff --name-only devfrom bash in Travis (https://github.com/travis-ci/travis-ci/issues/6069).
我打电话zgit_info_update并尝试提交。但是git diff --name-only dev在 Travis ( https://github.com/travis-ci/travis-ci/issues/6069) 中从 bash运行时，我仍然遇到问题。
Can somebody assist to get this working?
有人可以协助完成这项工作吗？
Here the output:
这里的输出：
git version 1.8.5.6
GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
* (detached from FETCH_HEAD)
master
remotes/origin/HEAD -> origin/master
remotes/origin/master
[detached HEAD 72afa70] Add package.json
1 file changed, 37 insertions(+)
create mode 100644 package.json
fatal: ambiguous argument 'dev': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
回答by vcernomschi
The issue was fixed by using commands below:
该问题已通过使用以下命令修复：
if [ "$TRAVIS" == "true" ]; then
#resolving `detached HEAD` by attaching HEAD to the `TRAVIS_FROM_BRANCH` branch
TRAVIS_FROM_BRANCH="travis_from_branch"
git branch $TRAVIS_FROM_BRANCH
git checkout $TRAVIS_FROM_BRANCH
#fetching `TRAVIS_BRANCH` branch
git fetch origin $TRAVIS_BRANCH
git checkout -qf FETCH_HEAD
git branch $TRAVIS_BRANCH
git checkout $TRAVIS_BRANCH
#switch to `TRAVIS_FROM_BRANCH`
git checkout $TRAVIS_FROM_BRANCH
fi
