Git 合并/拉取后使用 Maven 进行部分全新安装

Question

使用终端，是否可以清理和安装 POM 项目中在 a 之后发生更改的项目，git merge/pull换句话说，自上次全新安装以来的更改？

编辑

感谢 VonC 的回答，我已经完成了一个可以满足我要求的脚本。有关详细信息，请参阅下面的答案。

Answer 1

由于您可以检测到pom.xml两次提交之间的更改列表：git&nbsp;diff&nbsp;--name-status&nbsp;<commit1>&nbsp;<commit2>（另见“&nbsp;Git pull 后的细节变化”），您可以制作一个脚本，该脚本将为每个模块执行一个mvn clean install.

Answer 2

我已经完成了一个可以满足我要求的脚本。该项目是一个 POM 项目，其中包含包含应用程序主要项目的子 POM 项目。我通过让当前工作分支调用来实现了预期的结果git diff --name-status HEAD@{1} <current_branch>。这得到了项目中已更改文件的列表，然后我将其拆分为一个数组。不幸的是，我无法让拆分正常工作，因此数组被组织为更改类型，后跟文件路径。然后我检查了字符串大小，跳过了单个字符串。下一步是将字符串拆分为一个数组，由 . 分隔/。如果根路径检查它是否存在于数组中，如果不存在则添加。最后，遍历根路径数组并执行 maven 调用。################################################################################## License:.....GNU General Public License v3.0# Author:......CodeMonkey# Date:........14 November 2018# Title:.......GitMavenCleanInstall.sh# Description: This script is designed to cd to a set Maven POM Project,#&nbsp; &nbsp;perform a git remote update and pull, and clean install the changed#&nbsp; &nbsp;files projects.# Notice:......The project structure this script was originally set to target#&nbsp; &nbsp;is structured as a Maven POM Project that contains several sub-POM Projects.#&nbsp; &nbsp;The sub-POM Projects contain Maven Java Application projects. The targets#&nbsp; &nbsp;should be easy to change, and allow for others to target other structures.################################################################################### Change History: N/A##################################################################################!/bin/bash#Function to check if array has elementcontainsElement () {&nbsp; &nbsp; local e match="$1"&nbsp; &nbsp; shift&nbsp; &nbsp; for e; do [[ "$e" == "$match" ]] && return 0; done&nbsp; &nbsp; return 1}#Navigate to the POM Projectcd PATH/TO/POM/PROJECT#Remote updategit remote update -p#Pullgit pull#Get the current working branchCURRENT_BRANCH="$(git branch | sed -n -e 's/^\* \(.*\)/\1/p')"#Get the output of the command git diffGIT_DIFF_OUTPUT="$(git diff --name-status HEAD@{1} ${CURRENT_BRANCH})"#Split the diff output into an arrayread =a GIT_DIFF_OUTPUT_ARY <<< $GIT_DIF_OUTPUT#Declare empty array for root pathdeclare -a GIT_DIFF_OUTPUT_ARY_ROOT_PATH=()FORWARD='/'#Loop diff output arrayfor i in "$GIT_DIFF_OUTPUT_ARY[@]}"do&nbsp; &nbsp; #Check that the string is not 1 Character&nbsp; &nbsp; if [[ "$(echo -n $1 | wc -m)" != 1 ]]&nbsp; &nbsp; then&nbsp; &nbsp; &nbsp; &nbsp; #Split the file path by /&nbsp; &nbsp; &nbsp; &nbsp; IFS='/' read -ra SPLIT <<< $i&nbsp; &nbsp; &nbsp; &nbsp; #Concatenate first path + / + second path&nbsp; &nbsp; &nbsp; &nbsp; path=${SPLIT[0]}$FORWARD${SPLIT[1]}&nbsp; &nbsp; &nbsp; &nbsp; #Call function to see if it already exists in the root path array&nbsp; &nbsp; &nbsp; &nbsp; containsElement "$path" "${GIT_DIFF_OUTPUT_ARY_ROOT_PATH[@]}"&nbsp; &nbsp; &nbsp; &nbsp; if [[ $? != 0 ]]&nbsp; &nbsp; &nbsp; &nbsp; then&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; #Add the path since it was not found&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; GIT_DIFF_OUTPUT_ARY_ROOT_PATH+=($path)&nbsp; &nbsp; &nbsp; &nbsp; fi&nbsp; &nbsp; fidone#Loop root path arrayfor val in ${GIT_DIFF_OUTPUT_ARY_ROOT_PATH[@]}do&nbsp; &nbsp; #CD into root path&nbsp; &nbsp; cd $val&nbsp; &nbsp; #Maven call to clean install&nbsp; &nbsp; mvn -DskipTests=true --errors -T 8 -e clean install&nbsp; &nbsp; #CD back up before next project&nbsp; &nbsp; cd ../../done