Using cygwin ssh-agent is running but git is still prompting for passphrase

问题

I'm using cygwin as my terminal on Windows 7. I have found several suggestions to run ssh-agent in cygwin so I don't have to enter my password every time I run a git fetch/pull/push. I added the following to my .bash_profile and restarted my cygwin session:

SSH_ENV="$HOME/.ssh/environment"

function start_agent {
    echo "Initialising new SSH agent..."
    /usr/bin/ssh-agent -s | sed 's/^echo/#echo/' > "${SSH_ENV}"
    echo succeeded
    chmod 600 "${SSH_ENV}"
    . "${SSH_ENV}" > /dev/null
    /usr/bin/ssh-add;
}

# Source SSH settings, if applicable

if [ -f "${SSH_ENV}" ]; then
    . "${SSH_ENV}" > /dev/null
    #ps ${SSH_AGENT_PID} doesn't work under cywgin
    ps -ef | grep ${SSH_AGENT_PID} | grep ssh-agent$ > /dev/null || {
        start_agent;
    }
else
    start_agent;
fi

It looks as if the ssh-agent and ssh-add are run successfully, but I am still prompted for my password.

Initialising new SSH agent...
succeeded
Enter passphrase for /cygdrive/c/Users/<username>/.ssh/id_rsa:
Identity added: /cygdrive/c/Users/<username>/.ssh/id_rsa (/cygdrive/c/Users/<username>/.ssh/id_rsa)

$ ssh-add -l
2048 <fingerprint> /cygdrive/c/Users/<username>/.ssh/id_rsa (RSA)

$ git fetch --all
Fetching origin
Enter passphrase for key '/c/Users/<username>/.ssh/id_rsa':

I am in fact using SSH and not HTTPS for my git connection (redacted private info):

$ git remote -v
origin  ssh://git@XXX/XXX.git (fetch)
origin  ssh://git@XXX/XXX.git (push)

The closest problem I've found for this issue is the following question:

ssh-agent doesn't work / save me from typing passphrase for git

However, I didn't rename my ssh under /git/bin.

Any suggestions on how to diagnose this issue? Thanks!

回答1:

The problem is still remain. Seems it is related to the different paths and hasn't been fixed yet. You may consider to use expect as an alternatif to ssh-agent for login with passphrase interaction.

In Linux it use to be installed like this:

$ sudo apt-get update
$ apt-get install --assume-yes --no-install-recommends apt-utils expect

In cygwin you may find it under Tcl:

Here is a simple step on how to use it.

Create a file, lets locate it and name ~/.expect_push

#!/usr/bin/expect -f
spawn git push origin master
expect "Username for 'https://github.com':"
send "<username>\n";
expect "Password for 'https://<username>@github.com':"
send "<password>\n";
interact

Change the above <username> and <password> to your login id with following notes:

Modify the contents follow precisely to your git login interaction.
If your <password> contain the char $ put it as \$ otherwise the authentication will be failed.
For example if your password mypa$$word then put <password> as mypa\$\$word.

Create another file ~/.git_push

#!/usr/bin/bash
git remote set-url origin git@github.com:<username>/<repo>.git
git add .
git commit -m "my test commit using expect"
expect ~/.ssh/.expect_push

Make them executable and create symlink in /bin

$ chmod +x ~/.expect_push
$ chmod +x ~/.git_push
$ cd /bin
$ ln -s ~/.git_push push

Then you can push to the remote without need to fill in username and password or passphrase

$ cd /path/to/your/git/folder
$ push

来源：https://stackoverflow.com/questions/40226053/using-cygwin-ssh-agent-is-running-but-git-is-still-prompting-for-passphrase

标签

windows

git

ssh

cygwin

ssh-agent