Claude
b4b43b94bf
Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Gth99spB1CzQmBFofXmU4Z
53 lines
4.3 KiB
Bash
Executable File
53 lines
4.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Regenerates output/. Needs JDK 17 on JAVA_HOME (the legacy app targets 17), Maven 3.9, network access to Maven Central.
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# Work happens in $WORK (default /tmp/or-work) OUTSIDE this git checkout, because OpenRewrite honours .gitignore
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# and ignores files git ignores (see output/00-gotcha-gitignore.txt).
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set -uo pipefail
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cd "$(dirname "$0")/.."
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WORK=${WORK:-/tmp/or-work}; OUT=$PWD/output; mkdir -p "$OUT"
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R1=org.openrewrite.java.spring.boot3.UpgradeSpringBoot_3_5
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R2=org.openrewrite.java.spring.boot4.UpgradeSpringBoot_4_0
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tests() { (cd "$1" && mvn -B test 2>&1 | grep -E "Tests run:.*Fail|BUILD|ERROR" | grep -v "Time elapsed" | head -${2:-8}); }
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difff() { diff -ru -x target "$1" "$2" | sed -E 's/\t20[0-9-]+ [0-9:.]+ \+0000$//; s#'"$WORK"'/##g'; }
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{ echo "# 01-baseline: legacy app, Spring Boot 2.7.18, JDK 17"; tests legacy-app; } > "$OUT/01-baseline.txt"
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s=$(date +%s); ./scripts/rewrite.sh legacy-app "$WORK/step1" $R1 >/dev/null 2>&1; e=$(date +%s)
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{ echo "# 02-step1-diff: recipe $R1 on the legacy app ($((e-s)) s)"; difff legacy-app "$WORK/step1"; diff -rq legacy-app "$WORK/step1" -x target | grep '^Only in' | sed "s#$WORK/##"; } > "$OUT/02-step1-diff.txt"
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{ echo "# 03-step1-build: after step 1, JDK 17"; tests "$WORK/step1"; } > "$OUT/03-step1-build.txt"
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s=$(date +%s); ./scripts/rewrite.sh "$WORK/step1" "$WORK/step2" $R2 >/dev/null 2>&1; e=$(date +%s)
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{ echo "# 04-step2-diff: recipe $R2 applied on top of step 1 ($((e-s)) s)"; difff "$WORK/step1" "$WORK/step2"; } > "$OUT/04-step2-diff.txt"
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{ echo "# 05-step2-build: after step 2, JDK 17"; tests "$WORK/step2"; } > "$OUT/05-step2-build.txt"
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{
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echo "# 06-what-it-left-behind (in $WORK/step2, after both recipes)"
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echo "--- leftover 'javax.' string literals or keys in source and resources:"
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grep -rn 'javax\.' "$WORK/step2/src" | sed "s#$WORK/step2/##" || true
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echo "--- META-INF files:"; (cd "$WORK/step2/src/main/resources/META-INF" && find . -type f | sort)
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echo "--- explicit jakarta.servlet-api dependency added to the pom:"; grep -c '<artifactId>jakarta.servlet-api</artifactId>' "$WORK/step2/pom.xml"
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echo "--- RestTemplate usages (recipe does not touch them):"; grep -rn 'RestTemplate' "$WORK/step2/src" | sed "s#$WORK/step2/##"
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echo "--- Spring Boot version the recipe stopped at:"; grep -A1 '<artifactId>spring-boot-starter-parent' "$WORK/step2/pom.xml" | grep version
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} > "$OUT/06-what-it-left-behind.txt"
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rm -rf "$WORK/step3"; cp -r "$WORK/step2" "$WORK/step3"; rm -rf "$WORK/step3/target"
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sed -i 's#<version>4.0.[0-9]*</version>#<version>4.1.1</version>#' "$WORK/step3/pom.xml"
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{ echo "# 07-step3-boot-4.1.1: parent bumped by hand from the recipe's 4.0.x to 4.1.1, JDK 17"; grep -A1 '<artifactId>spring-boot-starter-parent' "$WORK/step3/pom.xml" | grep version; tests "$WORK/step3"; } > "$OUT/07-step3-boot-4.1.1.txt"
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# CI gate: dryRun with failOnDryRunResults. Fails on the legacy app, passes once migrated.
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gate() { (cd "$1" && rm -rf target && mvn -B -q org.openrewrite.maven:rewrite-maven-plugin:6.46.1:dryRun \
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-Drewrite.recipeArtifactCoordinates=org.openrewrite.recipe:rewrite-spring:6.37.1,org.openrewrite.recipe:rewrite-migrate-java:3.42.1 \
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-Drewrite.activeRecipes="$2" -D"$3"=true >/dev/null 2>&1; echo "exit code $?"); }
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rm -rf "$WORK/g1" "$WORK/g2"; cp -r legacy-app "$WORK/g1"; cp -r "$WORK/step2" "$WORK/g2"
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{ echo "# 08-ci-gate (mvn rewrite:dryRun, exit code decides the CI job)"
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echo "legacy app, -Drewrite.failOnDryRunResults=true (the name you would guess): $(gate "$WORK/g1" $R1 rewrite.failOnDryRunResults)"
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echo "legacy app, -DfailOnDryRunResults=true (the real user property): $(gate "$WORK/g1" $R1 failOnDryRunResults)"
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echo "migrated app, -DfailOnDryRunResults=true: $(gate "$WORK/g2" $R1 failOnDryRunResults)"; } > "$OUT/08-ci-gate.txt"
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{ echo "# 00-gotcha-gitignore: same recipe, same project, sources under a .gitignore'd directory"
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rm -rf "$WORK/ign"; mkdir -p "$WORK/ign"; (cd "$WORK/ign" && git init -q && echo 'legacy/' > .gitignore && cp -r "$OLDPWD/legacy-app" legacy && cd legacy \
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&& mvn -B org.openrewrite.maven:rewrite-maven-plugin:6.46.1:dryRun -Drewrite.recipeArtifactCoordinates=org.openrewrite.recipe:rewrite-spring:6.37.1,org.openrewrite.recipe:rewrite-migrate-java:3.42.1 -Drewrite.activeRecipes=$R1 2>&1 | grep -E "Applying recipes|Parsing|patch file" )
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} > "$OUT/00-gotcha-gitignore.txt"
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ls -1 "$OUT"
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