Python面料：如何處理任意遠程shell提示輸入？

Question

這裏和這個question有關，但是稍微有點扭曲：不是隻傳遞'yes'或'no'，我需要Fabric將任意字符串傳遞給遠程shell。

例如，如果遠程shell提示'你的名字是什麼？'那麼我需要給它「首先，最後」。

說明：我知道我說的是任意輸入，但我確實是trying to use it for the SSH key passwd prompt when I try to do a git pull。

更新＃1：得到了傑夫Forcier響應@bitprophet

• that’s like the #1 wart right now :(Either tunnelling to send a key agent out-of-band, or remote prompting, is needed.

• I meant adding support for those things in Fabric, is what we need to do to get network-borne git ops working

• Adding an easy way to kick off an OOB ssh agent-friendly tunnel is going to be easier/faster, most likely. Soon probably

Answer 1

Fabric 1.0最終支持與遠程服務器的交互。詳情請參閱this page。

Answer 2

也許考慮pexpect

Answer 3

我建立了一個名爲project_name/.git的git源代碼庫。

ssh to the server, (entering ssh passwords or passphrases as I go) 
    mkdir project_name 
    cd project_name 
    git init 
    touch fabfile.py 
    git add fabfile.py 
    git commit -a -m "almost empty" 
    git checkout -b web 

我離開分支網站簽出。回到本地機器。

我從服務器通過克隆拉，並添加了我的項目目錄在本地回購分公司主分支。儘管這些步驟也可以自動化，但我並不想使用結構，只是設置了一些東西，而且沒有一個需要另一個SSH密碼。

cd /path/to/project_name/.. 
    git clone ssh://joe@some_server.com/var/web/project_name/.git 
    cd project_name 
    gvim fabfile.py 
    git add fabfile.py 
    git commit -a -m "fabfile edits" 

現在我開始使用fabric。下面是我的fabfile摘錄管理Git標籤 和分支：

#Usage: fab committag brpush | fab committag push | fab push | fab tag 
def committag(): 
    """commit chgs, tag new commit, push tags to server.""" 
    prompt('commit descr: ', 'COM_MSG', default='new stuff') 
    prompt('commit name: ', 'COM_NAME', default='0.0.1') 
    local('git commit -a -m "%(COM_MSG)s"' % env) 
    local('sleep 1') 
    local('git tag -u "John Griessen" -m "%(COM_MSG)s" %(COM_NAME)s' % env) 
    local('sleep 1') 
    local('git push origin --tags') #pushes local tags 

def brpush(): 
    """create a new branch, default COM_NAME, then push to server.""" 
    prompt('new branch name: ', 'BR_NAME', default= '%(COM_NAME)s' % env) 
    local('git checkout -b %(BR_NAME)s' % env) 
    local('sleep 2') 
    local('git checkout master') 
    local('git push origin --tags') #pushes local tags 
    local('git push --all origin') #pushes local master and branches 

def push(): 
    """Push existing tags and changes to server.""" 
    local('git push origin --tags') #pushes local tags 
    local('git push --all origin') #pushes local master and branches 


def tag(): #Call this from committag() 
    """create a gpg signed tag on the local git repo tag from prompted name .""" 
    prompt('tag descr: ', 'TAG_MSG', default='0.0.1') 
    prompt('tag name: ', 'TAG_NAME', default='0.0.1') 
    local('git tag -u "John Griessen" -m "%(TAG_MSG)s" %(TAG_NAME)s' % env) 

使用上述fabfile DEFS，我只是做一些改變我的項目目錄， 想着它們的apporpriate消息，並做：

$fab committag 

我在服務器上標記和更新了更改。或者：

$fab committag brpush 

我創建了一個新分支並更新了服務器。

Answer 4

跳過主機驗證提示的一種方法是：

run('ssh-keyscan github.com > ~/.ssh/known_hosts') 

而且，我使用​​安裝deploy keys:

run('ssh-keygen -q -t rsa -f /home/%(user)s/.ssh/id_rsa -N ""' % env) 
key = run('cat /home/%(user)s/.ssh/id_rsa.pub' % env) 
gh.repos.addDeployKey(repo, env.host, key) 

Answer 5

我已經提出了這個功能的API面料郵件列表， ，最後寫了一些東西：

from fexpect import expect, expecting, run 

prompts = [] 
prompts += expect('What is your name?','John') 
prompts += expect('Where do you live?','New York') 

with expecting(prompts): 
    run('command') 

查看我的博文對expecting prompts in fabric with fexpect