blocks|key|4387895|text|通常，当我调用一个函数并想要一个错误消息以防它失败时，我会这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387896|presubmit+%7C%7C+{+echo+'presubmit+failed'+;+exit+1;+}|offset|length|style|CODE|4387897|通过添加%7C%7C标志，它将确定哪个表达式为真。|4387898|希望这能有所帮助:)|4387899|entityMap^0|0|0|1E|0|4|2|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@$D|S|E|T|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|M|$]]

Usually when I call a function and want an error message incase it fails I do this: 

<code>presubmit || { echo 'presubmit failed' ; exit 1; }</code>

By adding the <code>||</code> flag, it will determine whether which expression is TRUE.

Hope this helps :)

blocks|key|4387916|text|您可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387917|#+declare+a+wrapper+function+for+gradle
gradle()+{
+++command+gradle+"$@"+%7C%7C+exit+1
}

presubmit()+{
++gradle+test+android
++gradle+test+ios
++gradle+test+server
++git+push+origin+master
}

declare+-xf+presubmit+gradle|code-block|syntax|javascript|4387918|调用子subshell中的函数，如下所示：|4387919|(+presubmit+)|4387920|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can do this:

<pre><code># declare a wrapper function for gradle
gradle() {
 command gradle "$@" || exit 1
}

presubmit() {
 gradle test android
 gradle test ios
 gradle test server
 git push origin master
}

declare -xf presubmit gradle
</code></pre>

Call the function in a subshell as:

<pre><code>( presubmit )
</code></pre>

blocks|key|4387945|text|我会让脚本更细粒度：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387946|#!/bin/bash

function+test()+{
++gradle+test+android
++gradle+test+ios
++gradle+test+server
}
function+push()+{
++git+push+origin+master
}
#+this+subshell+runs+similar+to+try/catch
(
++#+this+flag+will+make+to+exit+from+current+subshell+on+any+error+inside+test+or+push
++set+-e
++test
++push
)
#+you+catch+errors+with+this+if
if+[+$?+-ne+0+];+then
++echo+"We+have+error"
++exit+$?
fi|code-block|syntax|javascript|4387947|我们只在测试和推送中跟踪错误。您可以在测试和推送运行的subshell之外添加更多操作。您还可以通过这种方式为错误添加不同的作用域(让我们将其视为try/catch)|4387948|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I would make script more granulated:

<pre><code>#!/bin/bash

function test() {
 gradle test android
 gradle test ios
 gradle test server
}
function push() {
 git push origin master
}
# this subshell runs similar to try/catch
(
 # this flag will make to exit from current subshell on any error inside test or push
 set -e
 test
 push
)
# you catch errors with this if
if [ $? -ne 0 ]; then
 echo "We have error"
 exit $?
fi
</code></pre>

We track error only inside test and push. You can add more actions outside of subshell where test and push run. You can also this way add different scope for errors (let consider it as try/catch)

blocks|key|4387986|text|我这样做的方法是在函数中的每个命令后添加&&+\+(除了最后一个命令)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4387987|function+presubmit()+{
++++gradle+test+android+&&+\
++++gradle+test+ios+&&+\
++++gradle+test+server+&&+\
++++git+push+origin+master
}|code-block|syntax|javascript|4387988|entityMap^0|K|4|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

The way I do it is to add <code>&amp;&amp; \</code> after every command in the function (except the last one). 

<pre class="lang-sh prettyprint-override"><code>function presubmit() {
 gradle test android &amp;&amp; \
 gradle test ios &amp;&amp; \
 gradle test server &amp;&amp; \
 git push origin master
}
</code></pre>

I am making a presubmit script. It looks like this:

<pre><code>function presubmit() {
 gradle test android
 gradle test ios
 gradle test server
 git push origin master
}
</code></pre>

I want the function to exit, if any of the tests fail so it won't push a bug to git. How?

How to exit bash function if error?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在制作一个预提交脚本。它看起来是这样的：function presubmit() {  gradle test android  gradle test ios  gradle test server  git push origin master}如果任何测试失败，我希望函数退出，这样它就不会将bug推到git上...

问如果出现错误，如何退出bash函数？
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问如果出现错误，如何退出bash函数？EN