我是GitHub的新手.今天我在尝试将代码推送到GitHub时遇到了一些问题.
Pushing to git@github.com:519ebayproject/519ebayproject.git
To git@github.com:519ebayproject/519ebayproject.git
! [rejected] master -> master (non-fast-forward)
error: failed to push some refs to 'git@github.com:519ebayproject/519ebayproject.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Merge the remote changes (e.g. 'git pull')
hint: before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.
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我还没有在存储库中推送任何东西,为什么我需要拉东西呢?
我对bundler及其生成的文件有点新意.我有一个来自GitHub的git repo的副本,这是由很多人贡献的,所以我很惊讶地发现bundler创建了一个在repo中不存在但不在.gitignore列表中的文件.
因为我已经分叉它,我知道将它添加到repo不会破坏主回购的任何东西,但是如果我做一个pull请求,它会导致问题吗?
应该Gemfile.lock包含在存储库中吗?
有时,每当我在Linux中编写程序并因某种错误而崩溃时,它将成为一个不间断的过程并继续运行,直到我重新启动计算机(即使我退出).我的问题是:
我在这里尝试做的是获取给定URL的标题,以便我可以确定MIME类型.我希望能够看到是否http://somedomain/foo/会返回HTML文档或JPEG图像.因此,我需要弄清楚如何发送HEAD请求,以便我可以读取MIME类型而无需下载内容.有谁知道这样做的简单方法?
Git是快照的DAG,图上的每个节点都代表一个提交.每个提交都可以有'n'个父提交.
鉴于任何两个提交,是否有一种简洁的方法来识别DAG中这两者的"顺序". git rev-list似乎是最有希望的,但我似乎无法找到正确的咒语.
理想情况下,我会有以下内容
$ git related hash1 hash2
hash1 is ancestor of hash2
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要么
hash2 is ancestor of hash1
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要么
hash1 unrelated to hash2
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要么
hash1 is equal to hash2
Run Code Online (Sandbox Code Playgroud) 编辑:准确地完成所做的事情
我需要SSH本地主机没有密码,通常的方式(使用公钥)不起作用.
user@PC:~$ rm -rf .ssh/*
user@PC:~$ ssh-keygen -t rsa > /dev/null
Enter file in which to save the key (/home/user/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
user@PC:~$ ls .ssh/
id_rsa id_rsa.pub
user@PC:~$ ssh-copy-id -i localhost
The authenticity of host 'localhost (::1)' can't be established.
RSA key fingerprint is f7:87:b5:4e:31:a1:72:11:8e:5f:d2:61:bd:b3:40:1a.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'localhost' (RSA) to the list of known hosts.
user@localhost's password:
Now try logging …Run Code Online (Sandbox Code Playgroud) 最近的NTFS和Windows实现了符号链接:
linkd或junction工具.mklink工具以来,NTFS符号链接也可用作符号链接(用于文件和目录).但是在Cygwin 1.7(安装在Windows 7上)上,ln -s创建了一个文本文件.
在Cygwin上:
$ ln -s -v target mylink
`mylink' -> `target'
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在MinGW(或你最喜欢的编辑):
$ cat mylink
!<symlink>ÿþt a r g e t
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是否有可能告诉Cygwing使用NTFS交接点或NTFS符号链接?
其他问题:MinGW上有这个吗?
我在Ubuntu Desktop 16.04上使用Selenium WebDriver,我无法打开浏览器.Firefox更新后出现以下错误(在此之前,一切正常):
Traceback (most recent call last):
File "test.py", line 6, in <module>
driver = webdriver.Firefox()
File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/firefox/webdriver.py", line 81, in __init__
self.binary, timeout)
File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/firefox/extension_connection.py", line 51, in __init__
self.binary.launch_browser(self.profile, timeout=timeout)
File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/firefox/firefox_binary.py", line 68, in launch_browser
self._wait_until_connectable(timeout=timeout)
File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/firefox/firefox_binary.py", line 98, in _wait_until_connectable
raise WebDriverException("The browser appears to have exited "
selenium.common.exceptions.WebDriverException: Message: The browser appears to have exited before we could connect. If you specified a log_file in the FirefoxBinary constructor, check it for details.
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