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  1. Jenkins
  2. JENKINS-55771

Assign variable from shell output using declarative pipeline

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      Currently, we can capture the output of a shell step inside of a script block, but have no way to do that in clean declarative pipeline syntax. For example, this post on StackOverflow must instead be:

      // Git committer email
script {
  GIT_COMMIT_EMAIL = sh (
    script: 'git --no-pager show -s --format=\'%ae\'',
    returnStdout: true
  ).trim()
}
echo "Git committer email: ${GIT_COMMIT_EMAIL}"

      It also doesn't work to wrap it in a declarative environment block, though that may perhaps be a reasonable place to extend the syntax.

          [JENKINS-55771] Assign variable from shell output using declarative pipeline

          Bryce Schober created issue -
          Bryce Schober made changes -
          Description New: Currently, we can capture the output of a shell step inside of a {{script{}}} block, but have no way to do that in clean declarative pipeline syntax. For example, [this post on StackOverflow|https://stackoverflow.com/a/38783622] must instead
          Bryce Schober made changes -
          Component/s New: workflow-durable-task-step-plugin [ 21715 ]
          Component/s Original: pipeline-build-step-plugin [ 21707 ]
          Component/s Original: pipeline-stage-step-plugin [ 21709 ]
          Bryce Schober made changes -
          Description Original: Currently, we can capture the output of a shell step inside of a {{script{}}} block, but have no way to do that in clean declarative pipeline syntax. For example, [this post on StackOverflow|https://stackoverflow.com/a/38783622] must instead New: Currently, we can capture the output of a shell step inside of a {{script{}}} block, but have no way to do that in clean declarative pipeline syntax. For example, [this post on StackOverflow|https://stackoverflow.com/a/38783622] must instead be:

          {code:groovy}
          // Git committer email
          script {
            GIT_COMMIT_EMAIL = sh (
              script: 'git --no-pager show -s --format=\'%ae\'',
              returnStdout: true
            ).trim()
          }
          echo "Git committer email: ${GIT_COMMIT_EMAIL}"
          {code}
          Bryce Schober made changes -
          Component/s New: pipeline [ 21692 ]
          Bryce Schober made changes -
          Description Original: Currently, we can capture the output of a shell step inside of a {{script{}}} block, but have no way to do that in clean declarative pipeline syntax. For example, [this post on StackOverflow|https://stackoverflow.com/a/38783622] must instead be:

          {code:groovy}
          // Git committer email
          script {
            GIT_COMMIT_EMAIL = sh (
              script: 'git --no-pager show -s --format=\'%ae\'',
              returnStdout: true
            ).trim()
          }
          echo "Git committer email: ${GIT_COMMIT_EMAIL}"
          {code}
          		 New: Currently, we can capture the output of a shell step inside of a {{script}} block, but have no way to do that in clean declarative pipeline syntax. For example, [this post on StackOverflow|https://stackoverflow.com/a/38783622] must instead be:

          {code:groovy}
          // Git committer email
          script {
            GIT_COMMIT_EMAIL = sh (
              script: 'git --no-pager show -s --format=\'%ae\'',
              returnStdout: true
            ).trim()
          }
          echo "Git committer email: ${GIT_COMMIT_EMAIL}"
          {code}

          It also doesn't work to wrap it in a declarative {{environment}} block, though that may perhaps be a reasonable place to extend the syntax.
          Bryce Schober made changes -
          Assignee New: Devin Nusbaum [ dnusbaum ]
          Devin Nusbaum made changes -
          Component/s New: pipeline-model-definition-plugin [ 21706 ]
          Component/s Original: pipeline [ 21692 ]
          Component/s Original: workflow-durable-task-step-plugin [ 21715 ]
          Devin Nusbaum made changes -
          Labels New: pipeline
          Devin Nusbaum made changes -
          Assignee Original: Devin Nusbaum [ dnusbaum ]
          Andrew Bayer made changes -
          Link New: This issue duplicates JENKINS-44376 [ JENKINS-44376 ]
          Andrew Bayer made changes -
          Resolution New: Duplicate [ 3 ]
          Status Original: Open [ 1 ] New: Resolved [ 5 ]

            Unassigned Unassigned
            bryceman Bryce Schober
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              Created:
              Updated:
              Resolved: