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问题:
Previously I used below command to take the version in pom.xml and increment it from one. Before increment snapshot version is, 0.0.1
#!/bin/bash
version=$(grep -ri "<version>" pom.xml |head -n 1 | sed -e 's/^[ \t]*
<version>\([^<]*\)<.*$/\1/' | sed 's/[-SNAPSHOT]//g')
var1=$(echo $version | cut -c1)
var2=$(echo $version | cut -c2)
var3=$(echo $version | cut -c3)
var4=$(echo $version | cut -c4)
var5=$(echo $version | cut -c5)
var5=$((var5+1))
incrementVer=$var1$var2$var3$var4$var5
echo $incrementVer
output is 0.0.2
But I want to push this output into pom file and update as, <version>0.0.2</version>
Can I use sed command to update pom file?
My pom file looks like this,
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mss.inven</groupId>
<artifactId>INVEN</artifactId>
<version>0.0.1-SNAPSHOT</version>
回答1:
Yes you can use sed to modify the version in pom.xml file.
Simply add, at the end of your given bash script, those two lines:
LN=$(grep -n "<version>" pom.xml | head -1 | awk -F ":" '{print $1}')
sed -i "$LN s/$version/$incrementVer/" pom.xml
Explanation:
- The first line recover the line number of the project version (in LN
var)
- The second modify in place (-i parameter of sed) the pom file with
new version value.
回答2:
The simple solution to set the version to a particular value via versions-maven-plugin
mvn versions:set -DnewVersions=0.0.1
If you like to increment it. This could be achieved by using by build-helper-maven-pugin like the following:
mvn build-helper:parse-version versions:set \
-DnewVersion=\${parsedVersion.nextMajorVersion}.0.0 \
versions:commit
or if you like to increment the minor version:
mvn build-helper:parse-version versions:set \
-DnewVersion=\${parsedVersion.majorVersion}.\${parsedVersion.nextMinorVersion}.0 \
versions:commit
or if you like to increment the patch version:
mvn build-helper:parse-version versions:set \
-DnewVersion=\${parsedVersion.majorVersion}.\${parsedVersion.minorVersion}.\${parsedVersion.nextIncrementalVersion} \
versions:commit
You need to pay attention to quoting which is needed on Windows/Linux.
or you can use maven-release-plugin which will increment the current version to the next one by just calling:
mvn -B release:update-versions
Or you you the maven-release-plugin via the usual release process by mvn release:prepare release:perform which by default increments the version also.
回答3:
Use an XML-aware tool. For example, in xsh you can write
open pom.xml ;
register-namespace m http://maven.apache.org/POM/4.0.0 ;
for //m:version
set . xsh:subst(., '(?<=\.)([0-9]+)$', '$1+1', 'e') ;
save :b ;
Which changes "0.0.1" to "0.0.2".
To also increment the version if -SNAPSHOT is present, the regular expression becomes a bit more complex:
xsh:subst(., '(?<=\.)([0-9]+)(?=$|-SNAPSHOT$)', '$1+1', 'e') ;
^ ^ ^ ^ ^
| | | | |
| | Followed by | Evaluate replacement
Preceded | end of string | as code
by a dot At least or -SNAPSHOT plus |
one digit end of string Add one
to the 1st
capture group
回答4:
I can use maven plugin to do above increment. But the thing is my mentor has been instructed me to get it by using shell commands for practice shell scripting. I highly appreciate your support. Somehow I solved my question using below commands.
#!/bin/bash
cd Project/
version=$(grep -ri "<version>" pom.xml |head -n 1 | sed -e 's/^[ \t]*<version>\
([^<]*\)<.*$/\1/')
major=$(echo $version | cut -c1)
var2=$(echo $version | cut -c2)
miner=$(echo $version | cut -c3)
var4=$(echo $version | cut -c4)
bug=$(echo $version | cut -c5)
bug=$((bug+1))
str="-SNAPSHOT"
incrementVer=$major$var2$miner$var4$bug$str
echo $incrementVer
pomChange=$(grep -ri "<version>" pom.xml | head -n 1 | sed -i "s/\(<version>\)[^<]*\
(<\/version>\)/\1$incrementVer\2/" pom.xml)
echo $pomChange
Output looks like,
[INFO] -------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ---------------------------------------------------------------------
[INFO] Total time: 4.087s
[INFO] Finished at: Wed Oct 31 00:25:40 IST 2018
[INFO] Final Memory: 6M/17M
[INFO] --------------------------------------------------------------------
0.0.2-SNAPSHOT
Finished: SUCCESS
回答5:
Looks like you want to edit the pom.xml in the backend. Try the Perl one-liner.
Check this out.
> cat pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mss.inven</groupId>
<artifactId>INVEN</artifactId>
<version>0.0.1-SNAPSHOT</version>
> perl -ne ' { s/(.*)\.(\d+)(-SNAPSHOT.*)/printf("%s.%d%s",$1,$2+1,$3)/ge and $_=~s/.$//g if /<version>/; print } ' pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mss.inven</groupId>
<artifactId>INVEN</artifactId>
<version>0.0.2-SNAPSHOT</version>
>
回答6:
In here I mention fully working command. Thank you for your support.
#!/bin/bash
version=$(grep -ri "<version>" pom.xml |head -n 1 | sed -e 's/^[ \t]*<version>\
([^<]*\)<.*$/\1/')
major=$(echo $version | cut -c1)
var2=$(echo $version | cut -c2)
miner=$(echo $version | cut -c3)
var4=$(echo $version | cut -c4)
bug=$(echo $version | cut -c5)
bug=$((bug+1))
str="-SNAPSHOT"
incrementVer=$major$var2$miner$var4$bug$str
echo $incrementVer
LN=$(grep -n "<version>" pom.xml | head -1 | awk -F ":" '{print $1}')
sed -i "$LN s/$version/$incrementVer/" pom.xml
