Build dispatch

buildObjHelper.groovy is the central switch from the build_tool parameter (set in the service Jenkinsfile) to the stage class that actually runs. vars/buildPipeline.groovy:12 calls buildObjHelper.run(param.build_tool) and assigns the return to buildObj; everything from then on flows through that object.

The switch (buildObjHelper.groovy:5-30)

`build_tool` value	Stage class	Source
`maven`	`buildMaven`	`src/com/meesho/stages/buildMaven.groovy`
`maven-*` (e.g. `maven-3.3-jdk-17`)	`buildMaven`	same
`docker`	`buildDocker`	`src/com/meesho/stages/buildDocker.groovy`
`python-*` (e.g. `python-3.10`)	`buildPython`	`src/com/meesho/stages/buildPython.groovy`
`node-*` (e.g. `node-16`)	`buildNode`	`src/com/meesho/stages/buildNode.groovy`
`go*` (e.g. `go1.21`)	`buildGo`	`src/com/meesho/stages/buildGo.groovy`
`gradle`	`buildGradle`	`src/com/meesho/stages/buildGradle.groovy`
`php`	`buildPhp`	`src/com/meesho/stages/buildPhp.groovy`
any other value	`defaultBuild` (silent no-op)	(default case at line 28)

There is no sbt case and no rust case, despite what older docs may have implied (both have been reconciled out — see review-learnings.md for the audit trail).

Per-language quirks worth knowing

`buildMaven`

CAC validation runs before build (buildMaven.groovy:186-201).
Sonar scan triggered with withSonarQubeEnv (line 245) against sonarqube-prd via constructParam.groovy:172.
Quality-gate timeout: 600s on prd, 360s elsewhere (lines 286-296).
JFrog push gated on branch ∈ {master, main} OR push_to_jfrog=true (lines 377, 410). S3 push gated on branch ∈ {master, main, gcp-main, gcp-master} OR push_to_s3=true (lines 462, 497).

`buildGo`

sonar_scan() (lines 212-270) downloads the Go binary AND the sonar-scanner zip via curl inside the build stage itself (lines 227, 236) — there is no fileExists check on sonar-project.properties before the scan (line 220).
Go test failures are caught and logged but do not propagate as pipeline failure (lines 232-235): echo "Go tests failed, but the pipeline will continue.".
env.hot_fix = true (set by hotFix.groovy:11) skips Sonar AND the quality gate (lines 25-28).
Multi-module builds run in parallel { } (lines 161-179).
Docker push wrapped by retryDockerPush (5 attempts, 3s sleep) — see 05-cross-cutting.

`buildNode`

getNpmRc (lines 63-68) fetches MEESHO_NPMRC_SECRET from AWS Secrets Manager or Vault and writes it to .npmrc in the workspace.
Inline .env writes for GITHUB_TOKEN and SONAR credentials (lines 283-312) — note: there is no truncate -s 0 .env cleanup pattern; that was a historical PR concern that has been resolved.
DOCKER_BUILDKIT=0 is set explicitly (lines 387, 392, 400, 405) — BuildKit is disabled, not enabled. The BUILDKIT acronym entry in docs/acronyms.md was reconciled accordingly.
Docker push via retryDockerPush (line 389).

`buildPython`

Docker build with module support (lines 89-210) — no Sonar scan (unlike Maven / Go / Node).
Duplicate-key bug in docker_bindings map at lines 75 and 78 — second assignment overwrites the first. Flagged in BUGS report.

`buildGradle`

branch_name = 'repo' hard-coded at lines 252 and 285 — the subsequent comparison against 'master'/'main' therefore never matches the real branch. Flagged in BUGS report; do not assume branch_name is dynamic there.
Uses xq to query build.gradle (lines 255-256, 260, 288-289, 293) — xq is an XML query tool and Gradle files are Groovy/Kotlin DSL, not XML. Flagged.

Adding a new build_tool

Create src/com/meesho/stages/build<Lang>.groovy with a run(Map param) method.
Add a case in buildObjHelper.groovy — either a literal (case 'rust') or a regex (case ~/^rust-.*/) for versioned variants.
Add resources/com/meesho/<lang>-Dockerfile, <lang>-values.yaml, <lang>-deployment.yaml.
There is no unit test to add — push the branch and validate via @Library('devops-lib@<branch>') in a sandbox service Jenkinsfile.

6.3 KiB Raw Blame History

Build dispatch

The switch (buildObjHelper.groovy:5-30)

Per-language quirks worth knowing

buildMaven

buildGo

buildNode

buildPython

buildGradle