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Type: Bug
Resolution: Unresolved
Priority: Minor
Component/s: workflow-scm-step-plugin
Labels:
None
Environment:

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Jenkins 2.121.1
Jenkins 2.138.2

Plugins installed:
  "git": "3.9.1",
  "git-client": "2.7.3",
  "git-server": "1.7",
  "github": "1.29.2",
  "github-api": "1.92",
  and many more

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Jenkins 2.121.1 Jenkins 2.138.2 Plugins installed:   "git": "3.9.1",   "git-client": "2.7.3",   "git-server": "1.7",   "github": "1.29.2",   "github-api": "1.92",   and many more

On our jenkins master runs on a linux host and we've configured two git tools to be used on our slaves on the

http://<hostname>/jenkins/webapp/configureTools/

page

Default - Linux git binary
1. /usr/bin/git
gitwin - Windows git binary
1. C:\Program Files\Git\bin\git

Every Linux/Windows slaves in our infrastructure has git installed in the above location. On each slave configuration page, we don't override the 'Tools locations' and instead depend on inheriting the tools configured on the master.

For a Pipeline job with the Jenkinsfile stored in the jobs' config.xml - a job scheduled on a windows node correctly picked up the configured git tool

pipeline {
    agent {  label '(build) && win2k8' }
    tools { git "gitwin" }
    stages {
        stage('Compile') {
               stage('Windows') {
                    steps {
                        echo "Compiling code...."
                        sleep 10
                    }
               }
        }
    }
}

For a Pipeline job with the Jenkinsfile (same Jenkinsfile as listed above) stored in SCM - a job scheduled on a windows node does not correctly pick up the git tool configured. Instead it defaults to the first configured tool, which happens to be a linux path and hence fails on windows. The following blog post documents this issue and suggests using the checkout pipeline step to override the gitTool. I tried this and it didn't work either.

pipeline {
    agent {  label '(build) && win2k8' }
    tools { git "gitwin" }
    stages {
        stage('Compile') {
               stage('Windows') {
                    steps {
                            checkout([
							$class: 'GitSCM', branches: [[name: '*/master']], gitTool: 'gitwin',
							userRemoteConfigs: [[ credentialsId: null, url: 'http://<internally-hosted-git-url>.git' ]]
							])
                        echo "Compiling code...."
                        sleep 10
                    }
               }
        }
    }
}

Job log with error that highlights the slave trying to use the Default git tool rather than the overridden 'gitwin' tool configured in the Jenkinsfile

[Pipeline] node
Running on VMWASXXXXX in C:\workspace\msde-jenkinsfile-sample-windows
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Declarative: Checkout SCM)
[Pipeline] checkout
Cloning the remote Git repository
Cloning repository http://<internally-hosted-git-url>.git
 > /usr/bin/git init C:\workspace\msde-jenkinsfile-sample-windows # timeout=10
ERROR: Error cloning remote repo 'origin'
hudson.plugins.git.GitException: Could not init C:\workspace\msde-jenkinsfile-sample-windows
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$5.execute(CliGitAPIImpl.java:787)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$2.execute(CliGitAPIImpl.java:579)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:153)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:146)
	at hudson.remoting.UserRequest.perform(UserRequest.java:212)
	at hudson.remoting.UserRequest.perform(UserRequest.java:54)
	at hudson.remoting.Request$2.run(Request.java:369)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:93)
	at java.lang.Thread.run(Thread.java:748)
	Suppressed: hudson.remoting.Channel$CallSiteStackTrace: Remote call to JNLP4-connect connection from <internal-IP-address>/<internal-IP-address>:<internal-port>
		at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1741)
		at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:357)
		at hudson.remoting.Channel.call(Channel.java:955)
		at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.execute(RemoteGitImpl.java:146)
		at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
		at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
		at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
		at java.lang.reflect.Method.invoke(Method.java:498)
		at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.invoke(RemoteGitImpl.java:132)
		at com.sun.proxy.$Proxy99.execute(Unknown Source)
		at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1146)
		at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1186)
		at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:120)
		at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:90)
		at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:77)
		at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution$1$1.call(SynchronousNonBlockingStepExecution.java:50)
		at hudson.security.ACL.impersonate(ACL.java:290)
		at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution$1.run(SynchronousNonBlockingStepExecution.java:47)
		at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
		at java.util.concurrent.FutureTask.run(FutureTask.java:266)
		at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
		at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
		... 1 more
Caused by: hudson.plugins.git.GitException: Error performing command: /usr/bin/git init C:\workspace\msde-jenkinsfile-sample-windows
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2023)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1984)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1980)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommand(CliGitAPIImpl.java:1612)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$5.execute(CliGitAPIImpl.java:785)
	... 12 more
Caused by: java.io.IOException: Cannot run program "/usr/bin/git" (in directory "C:\workspace\msde-jenkinsfile-sample-windows"): CreateProcess error=2, The system cannot find the file specified
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
	at hudson.Proc$LocalProc.<init>(Proc.java:249)
	at hudson.Proc$LocalProc.<init>(Proc.java:218)
	at hudson.Launcher$LocalLauncher.launch(Launcher.java:935)
	at hudson.Launcher$ProcStarter.start(Launcher.java:454)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2012)
	... 16 more
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
	at java.lang.ProcessImpl.create(Native Method)
	at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)
	at java.lang.ProcessImpl.start(ProcessImpl.java:137)
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
	... 21 more
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
ERROR: Error cloning remote repo 'origin'
Finished: FAILURE

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