blocks|key|984260|text|你所做的几乎是可行的:你应该引用$CHANGED，如果它是空的，那么-z测试为空，这意味着没有变化。你的意思是：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|984261|if+[+-n+"$CHANGED"+];+then
++++VN="$VN-mod"
fi|code-block|syntax|javascript|984262|引用自Git的GIT-VERSION-GEN|984263|git+update-index+-q+--refresh
test+-z+"$(git+diff-index+--name-only+HEAD+--)"+%7C%7C
VN="$VN-dirty"|984264|看起来你是在抄袭，但你只是忘记了引用的细节。|984265|当然，您也可以这样做：|984266|if+git+diff-index+--quiet+HEAD+--;+then
++++#+No+changes
else
++++#+Changes
fi|984267|或者，如果你只关心“某些东西已经改变”的情况：|984268|if+!+git+diff-index+--quiet+HEAD+--;+then
++++VN="$VN-mod"
fi|984269|使用--quiet的好处是它可以在遇到单个差异时立即停止处理，因此它可能不必检查整个工作树。|984270|entityMap^0|G|8|Y|2|0|0|7|F|0|0|0|0|0|0|0|2|7|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|1B|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1C|8|@]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1D|8|@]|D|@]|E|$]]|$1|S|3|T|5|H|7|1E|8|@]|D|@]|E|$I|J]]|$1|U|3|V|5|6|7|1F|8|@]|D|@]|E|$]]|$1|W|3|X|5|H|7|1G|8|@]|D|@]|E|$I|J]]|$1|Y|3|Z|5|6|7|1H|8|@$9|1I|A|1J|B|C]]|D|@]|E|$]]|$1|10|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|11|$]]

What you're doing will almost work: you should quote <code>$CHANGED</code> in case it's empty, and <code>-z</code> tests for empty, which means no changes. What you meant was:

<pre><code>if [ -n "$CHANGED" ]; then
 VN="$VN-mod"
fi
</code></pre>

A quote from Git's <code>GIT-VERSION-GEN</code>:

<pre><code>git update-index -q --refresh
test -z "$(git diff-index --name-only HEAD --)" ||
VN="$VN-dirty"
</code></pre>

It looks like you were copying that, but you just forgot that detail of quoting.

Of course, you could also just do this:

<pre><code>if git diff-index --quiet HEAD --; then
 # No changes
else
 # Changes
fi
</code></pre>

Or if you only care about the "something has changed" case:

<pre><code>if ! git diff-index --quiet HEAD --; then
 VN="$VN-mod"
fi
</code></pre>

Using <code>--quiet</code> has the benefit that Git can stop processing as soon as it encounters a single diff, so it may not have to check your entire work tree.

blocks|key|769251|text|我也有类似的问题，但我还必须检查是否有添加的文件。因此，我做了以下工作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|769252|cd+/local/repo
RUN=0
git+diff+--no-ext-diff+--quiet+--exit-code+%7C%7C+RUN=1
if+[+$RUN+=+0+];+then
++++RUN=`git+ls-files+--exclude-standard+--others%7C+wc+-l`
fi

if+[+$RUN+=+0+];+then
++++exit+0
fi|code-block|syntax|javascript|769253|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I had a similar problem, but I had to check for added files also. So I did the following:

<pre><code>cd /local/repo
RUN=0
git diff --no-ext-diff --quiet --exit-code || RUN=1
if [ $RUN = 0 ]; then
 RUN=`git ls-files --exclude-standard --others| wc -l`
fi

if [ $RUN = 0 ]; then
 exit 0
fi
</code></pre>

blocks|key|769319|text|我是这么做的.|type|unstyled|depth|inlineStyleRanges|entityRanges|data|769320|CHANGES=`git+status+%7C+grep+"working+directory+clean"`
if+[+!+CHANGES+-eq+""+]+then
++++#+do+stuff+here
else
++++echo+"You+have+uncommitted+changes..."
fi|code-block|syntax|javascript|769321|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here's how I do it...

<pre><code>CHANGES=`git status | grep "working directory clean"`
if [ ! CHANGES -eq "" ] then
 # do stuff here
else
 echo "You have uncommitted changes..."
fi
</code></pre>

blocks|key|769326|text|使用git+status|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|769327|cd+/git/directory
if+[[+`git+status+--porcelain`+]];+then
++#+Changes
else
++#+No+changes
fi|code-block|syntax|javascript|769328|entityMap^0|2|A|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|$]]

Using <code>git status</code>:

<pre><code>cd /git/directory
if [[ `git status --porcelain` ]]; then
 # Changes
else
 # No changes
fi
</code></pre>

blocks|key|769392|text|这很好用。它还将列出受影响的文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|769393|if+git+diff-index+--name-status+--exit-code+HEAD;
then
++++echo+Git+working+copy+is+clean...;
else
++++echo+;
++++echo+ERROR:+Git+working+copy+is+dirty!;
++++echo+Commit+your+changes+and+try+again.;
fi;|code-block|syntax|javascript|769394|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This works nicely. It will also list the files affected:

<pre><code>if git diff-index --name-status --exit-code HEAD;
then
 echo Git working copy is clean...;
else
 echo ;
 echo ERROR: Git working copy is dirty!;
 echo Commit your changes and try again.;
fi;
</code></pre>

blocks|key|769424|text|这里有一组很好的Bash脚本函数，用于检查是否存在差异，将其打印给用户，并提示用户是否要在部署之前提交更改。它是为Heroku和Python应用程序构建的，但对于任何其他应用程序，它只需要很少的更改。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|769425|commit(){
++++echo+"Please+enter+a+commit+message..."
++++read+msg
++++git+add+.+--all
++++git+commit+-am+$msg
}

check_commit(){
++++echo+==========+CHECKING+FOR+CHANGES+========
++++changes=$(git+diff)
++++if+[+-n+"$changes"+];+then
++++++++echo+""
++++++++echo+"***+CHANGES+FOUND+***"
++++++++echo+"$changes"
++++++++echo+""
++++++++echo+"You+have+uncomitted+changes."
++++++++echo+"Would+you+like+to+commit+them+(y/n)?"
++++++++read+n
++++++++case+$n+in
++++++++++++"y")+commit;;
++++++++++++"n")+echo+"Changes+will+not+be+included...";;
++++++++++++*)+echo+"invalid+option";;
++++++++esac
++++else
++++++++echo+"...+No+changes+found"
++++fi
}

deploy(){
++++check_commit
++++echo+==========+DEPLOYING+TO+HEROKU+========
++++git+push+heroku+master
++++heroku+run+python+manage.py+syncdb
}|code-block|syntax|javascript|769426|你可以从Gists上复制：https://gist.github.com/sshadmand/f33afe7c9071bb725105|offset|length|769427|entityMap|0|LINK|mutability|MUTABLE|url|https://gist.github.com/sshadmand/f33afe7c9071bb725105^0|0|0|D|1I|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

Here is a nice set of Bash script functions that check if there is a diff, prints it to the user and prompts the user if they would like to commit changes before deployment. It is built for a Heroku and Python application, but it needs little change for any other application.

<pre><code>commit(){
 echo "Please enter a commit message..."
 read msg
 git add . --all
 git commit -am $msg
}

check_commit(){
 echo ========== CHECKING FOR CHANGES ========
 changes=$(git diff)
 if [ -n "$changes" ]; then
 echo ""
 echo "*** CHANGES FOUND ***"
 echo "$changes"
 echo ""
 echo "You have uncomitted changes."
 echo "Would you like to commit them (y/n)?"
 read n
 case $n in
 "y") commit;;
 "n") echo "Changes will not be included...";;
 *) echo "invalid option";;
 esac
 else
 echo "... No changes found"
 fi
}

deploy(){
 check_commit
 echo ========== DEPLOYING TO HEROKU ========
 git push heroku master
 heroku run python manage.py syncdb
}
</code></pre>

You can copy from Gists on: <a href="https://gist.github.com/sshadmand/f33afe7c9071bb725105" rel="nofollow noreferrer">https://gist.github.com/sshadmand/f33afe7c9071bb725105</a>

blocks|key|769457|text|nano+checker_git.sh|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|769458|粘贴此内容|unstyled|769459|#!/bin/bash

echo+"First+arg:+$1"

cd+$1

bob="Already+up-to-date."
echo+$bob

echo+$(git+pull)+>+s.txt
cat+s.txt
if+[+"$(cat+s.txt)"+==+"$bob"+]
then
echo+"up"
else
echo+"not+up"

fi
rm+-rf+st.txt|769460|769461|运行sh+checker_git.sh+gitpath|offset|length|style|CODE|769462|entityMap^0|0|0|0|0|2|P|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|T|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|U|8|@]|9|@]|A|$]]|$1|J|3|K|5|F|7|V|8|@$L|W|M|X|N|O]]|9|@]|A|$]]|$1|P|3|-4|5|F|7|Y|8|@]|9|@]|A|$]]]|Q|$]]

<pre><code>nano checker_git.sh
</code></pre>
paste this
<pre><code>#!/bin/bash

echo &quot;First arg: $1&quot;

cd $1

bob=&quot;Already up-to-date.&quot;
echo $bob

echo $(git pull) &gt; s.txt
cat s.txt
if [ &quot;$(cat s.txt)&quot; == &quot;$bob&quot; ]
then
echo &quot;up&quot;
else
echo &quot;not up&quot;

fi
rm -rf st.txt
</code></pre>
<hr />
<h1>run <code>sh checker_git.sh gitpath</code></h1>

blocks|key|769519|text|根据对@RyanMoon的回答(link)的@storm_m2138评论，我在Powershell中使用了以下内容。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|769520|function+hasChanges($dir="."){+$null+-ne+(iex+"git+-C+$dir+status+--porcelain+--untracked-files=no")+}

gci+-Directory+%7C+?{+hasChanges+$_+}+%7C+%25{+Write-Host+"$_+has+changes"+}
gci+-Directory+%7C+?{+hasChanges+$_+}+%7C+%25{+iex+"git+-C+$_+add+-u";+iex+"git+-C+$_+commit+-m"Somemthing"+}|code-block|syntax|javascript|769521|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/25149786/509614^0|13|A|G|4|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Based on @storm_m2138 comment to @RyanMoon's answer (<a href="https://stackoverflow.com/a/25149786/509614">link</a>) I am using the following in <code>Powershell</code>.

<pre class="lang-bsh prettyprint-override"><code>function hasChanges($dir="."){ $null -ne (iex "git -C $dir status --porcelain --untracked-files=no") }

gci -Directory | ?{ hasChanges $_ } | %{ Write-Host "$_ has changes" }
gci -Directory | ?{ hasChanges $_ } | %{ iex "git -C $_ add -u"; iex "git -C $_ commit -m"Somemthing" }
</code></pre>

blocks|key|769535|text|这也行得通：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|769536|if+[+$(git+status+--porcelain+%7C+wc+-l)+-eq+"0"+];+then
++echo+"+++Git+repo+is+clean."
else
++echo+"+++Git+repo+dirty.+Quit."
++exit+1
fi|code-block|syntax|javascript|769537|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This works too:

<pre><code>if [ $(git status --porcelain | wc -l) -eq "0" ]; then
 echo " Git repo is clean."
else
 echo " Git repo dirty. Quit."
 exit 1
fi
</code></pre>

blocks|key|984566|text|我的2点看法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|984567|git+status+--porcelain+%7C+head+-1|code-block|syntax|javascript|984568|只返回一行，而不是长列表|984569|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|$]]

my 2 cents:
<pre><code>git status --porcelain | head -1
</code></pre>
returns only one line instead of a long list

blocks|key|984621|text|Ansible的解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|984622|-+name:+Bootstrap+checks
++block:
++-+shell:+"git+status+--porcelain"
++++register:+git_status
++-+fail:
++++++msg:+"Please+clean+git+status:+{{+git_status.stdout+}}"
++++when:+git_status.stdout+!=+""|code-block|syntax|javascript|984623|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The solution with Ansible:
<pre><code>- name: Bootstrap checks
 block:
 - shell: &quot;git status --porcelain&quot;
 register: git_status
 - fail:
 msg: &quot;Please clean git status: {{ git_status.stdout }}&quot;
 when: git_status.stdout != &quot;&quot;
</code></pre>

There are some scripts that do not work correctly if they check for changes.

I tried it like this:

<pre><code>VN=$(git describe --abbrev=7 HEAD 2&gt;/dev/null)

git update-index -q --refresh
CHANGED=$(git diff-index --name-only HEAD --)
if [ ! -z $CHANGED ];
 then VN="$VN-mod"
fi
</code></pre>

Is there some kind of boolean check if there has been changes since the last commit, or how can I really test if there are new changes to my local repository?

I'm doing all this for a version creation script (that I found somewhere here).

How can I check in a Bash script if my local Git repository has changes?

Python

有一些脚本在检查更改时不能正常工作。我是这样尝试的：VN=$(git describe --abbrev=7 HEAD 2>/dev/null)git update-index -q --refreshCHANGED=$(git diff-index --name-only HEAD --)if [ ! -z $CHA...

问如果我的本地Git存储库发生了更改，我如何签入Bash脚本？
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