First try with Jenkinsfile, hope for the best

Jenkinsfile

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+pipeline {
+    agent linux {
+        stages {
+            stage('Build') {
+                steps {
+                    echo 'Starting build step...'
+                    sh './scripts/build.sh'
+                }
+            }
+
+            // Testing latex isn't really a thing, but we could do basic sanity checks in the future?
+
+            stage('Deploy') {
+                echo 'Starting deploy step...'
+            }
+        }
+    }
+}

scripts/build.sh

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+#!/bin/bash
+
+# Check if necessary packages are installed
+necessary_packages=("pdflatex")
+
+for package in ${necessary_packages}; do
+    if ! [dpkg -l ${package} > /dev/null]; then
+        echo "Error: ${package} is not installed."
+        exit 1
+    fi
+done
+
+# Build all directories
+subdirectory_file_name=main
+
+for D in *; do
+    if [ -d "${D}" ]; then
+        echo "Building ${D}..."
+        cd ${D}
+        pdflatex -interaction=nonstopmode -halt-on-error ${subdirectory_file_name}.tex
+        cd ..
+    fi
+done
+
+# Build main PDF
+main_file_name=main_text
+
+echo "Building main PDF..."
+pdflatex -interaction=nonstopmode -halt-on-error ${main_file_name}.tex
+
+# Clean up
+rm -rf *.aux *.log *.out *.toc