percy
diff --git a/‎packages/env/README.md‎
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diff --git a/‎packages/env/src/environment.js‎
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diff --git a/‎packages/env/test/argo-workflows.test.js‎
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diff --git a/‎packages/env/test/aws-codebuild.test.js‎
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@@ -5,22 +5,86 @@ into a common interface for consumption by `@percy/client`.
 
 ## Supported Environments
 
+Auto-detected based on environment variables that the CI provider sets during a build.
+
 - [AppVeyor](https://www.browserstack.com/docs/percy/ci-cd/appveyor)
+- [Atlassian Bamboo](#supported-environments) (needs doc)
+- [AWS CodeBuild](#supported-environments) (needs doc)
 - [Azure Pipelines](https://www.browserstack.com/docs/percy/ci-cd/azure-pipelines)
 - [Bitbucket Pipelines](https://www.browserstack.com/docs/percy/ci-cd/bitbucket-pipeline)
+- [Bitrise](#supported-environments) (needs doc)
 - [Buildkite](https://www.browserstack.com/docs/percy/ci-cd/buildkite)
 - [CircleCI](https://www.browserstack.com/docs/percy/ci-cd/circleci)
+- [Cloudflare Pages](#supported-environments) (needs doc)
+- [Codemagic](#supported-environments) (needs doc)
 - [Codeship](https://www.browserstack.com/docs/percy/ci-cd/codeship)
 - [Drone CI](https://docs.percy.io/docs/drone)
 - [GitHub Actions](https://www.browserstack.com/docs/percy/ci-cd/github-actions)
 - [GitLab CI](https://www.browserstack.com/docs/percy/ci-cd/gitlab)
+- [GoCD](#supported-environments) (needs doc)
+- [Google Cloud Build](#supported-environments) (needs doc)
+- [Harness CI](#supported-environments) (needs doc)
 - [Heroku CI](#supported-environments) (needs doc)
 - [Jenkins](https://www.browserstack.com/docs/percy/ci-cd/jenkins)
 - [Jenkins PRB](https://www.browserstack.com/docs/percy/ci-cd/jenkins)
 - [Netlify](https://www.browserstack.com/docs/percy/ci-cd/netlify)
 - [Probo.CI](#supported-environments) (needs doc)
 - [Semaphore](https://www.browserstack.com/docs/percy/ci-cd/semaphore)
+- [TeamCity](#supported-environments) (needs doc)
 - [Travis CI](https://www.browserstack.com/docs/percy/ci-cd/travis-ci)
+- [Vercel](#vercel) — see note below
+- [Woodpecker CI](#supported-environments) (needs doc)
+
+## Opt-in Environments
+
+Kubernetes-native pipelines do not inject provider-identifying environment variables
+into step containers by default. To enable Percy detection on these systems, expose
+the following variables via template substitution in your pipeline definition.
+
+### Tekton Pipelines
+
+```yaml
+steps:
+  - name: percy
+    image: node:20
+    env:
+      - name: TEKTON_PIPELINE_RUN          # required — triggers detection
+        value: "$(context.pipelineRun.name)"
+      - name: TEKTON_COMMIT_SHA
+        value: "$(params.commit-sha)"
+      - name: TEKTON_BRANCH
+        value: "$(params.branch)"
+      - name: TEKTON_PULL_REQUEST          # optional
+        value: "$(params.pr-number)"
+```
+
+### Argo Workflows
+
+```yaml
+- name: percy
+  container:
+    image: node:20
+    env:
+      - name: ARGO_WORKFLOW_NAME           # required — triggers detection
+        value: "{{workflow.name}}"
+      - name: ARGO_WORKFLOW_UID            # recommended — used as parallel nonce
+        value: "{{workflow.uid}}"
+      - name: ARGO_COMMIT_SHA
+        value: "{{workflow.parameters.commit-sha}}"
+      - name: ARGO_BRANCH
+        value: "{{workflow.parameters.branch}}"
+      - name: ARGO_PULL_REQUEST            # optional
+        value: "{{workflow.parameters.pr-number}}"
+```
+
+### Vercel
+
+Vercel exposes its `VERCEL_*` system environment variables to the build step only
+when **Automatically expose System Environment Variables** is enabled on the project
+(Settings → Environment Variables). Percy also needs `PERCY_PARALLEL_TOTAL=-1`
+set in the project environment for the parallel nonce to populate from
+`VERCEL_DEPLOYMENT_ID` — otherwise reruns of the same deploy will create separate
+Percy builds instead of deduping.
 
 ## Percy Environment Variables
 
 
@@ -23,6 +23,8 @@ export class PercyEnv {
       return 'circle';
     } else if (this.vars.CI_NAME === 'codeship') {
       return 'codeship';
+    } else if (this.vars.CI_SYSTEM_NAME === 'woodpecker' || this.vars.CI === 'woodpecker') {
+      return 'woodpecker';
     } else if (this.vars.DRONE === 'true') {
       return 'drone';
     } else if (this.vars.SEMAPHORE === 'true') {
@@ -47,6 +49,28 @@ export class PercyEnv {
       return 'netlify';
     } else if (this.vars.HARNESS_PROJECT_ID) {
       return 'harness';
+    } else if (this.vars.TEAMCITY_VERSION) {
+      return 'teamcity';
+    } else if (this.vars.CODEBUILD_BUILD_ID) {
+      return 'aws-codebuild';
+    } else if (this.vars.bamboo_buildKey) {
+      return 'bamboo';
+    } else if (this.vars.BITRISE_IO === 'true') {
+      return 'bitrise';
+    } else if (this.vars.CM_BUILD_ID) {
+      return 'codemagic';
+    } else if (this.vars.VERCEL === '1') {
+      return 'vercel';
+    } else if (this.vars.CF_PAGES === '1') {
+      return 'cloudflare-pages';
+    } else if (this.vars.GO_PIPELINE_NAME && this.vars.GO_SERVER_URL) {
+      return 'gocd';
+    } else if (this.vars.BUILD_ID && this.vars.PROJECT_ID && !this.vars.JENKINS_URL) {
+      return 'gcb';
+    } else if (this.vars.TEKTON_PIPELINE_RUN) {
+      return 'tekton';
+    } else if (this.vars.ARGO_WORKFLOW_NAME) {
+      return 'argo-workflows';
     } else if (this.vars.CI) {
       return 'CI/unknown';
     } else {
@@ -109,6 +133,30 @@ export class PercyEnv {
           return github(this.vars).pull_request?.head.sha || this.vars.GITHUB_SHA;
         case 'harness':
           return this.vars.DRONE_COMMIT_SHA;
+        case 'woodpecker':
+          return this.vars.CI_COMMIT_SHA;
+        case 'teamcity':
+          return this.vars.BUILD_VCS_NUMBER;
+        case 'aws-codebuild':
+          return this.vars.CODEBUILD_RESOLVED_SOURCE_VERSION;
+        case 'bamboo':
+          return this.vars.bamboo_planRepository_revision;
+        case 'bitrise':
+          return this.vars.BITRISE_GIT_COMMIT;
+        case 'codemagic':
+          return this.vars.CM_COMMIT;
+        case 'vercel':
+          return this.vars.VERCEL_GIT_COMMIT_SHA;
+        case 'cloudflare-pages':
+          return this.vars.CF_PAGES_COMMIT_SHA;
+        case 'gocd':
+          return this.vars.GO_REVISION;
+        case 'gcb':
+          return this.vars.COMMIT_SHA;
+        case 'tekton':
+          return this.vars.TEKTON_COMMIT_SHA;
+        case 'argo-workflows':
+          return this.vars.ARGO_COMMIT_SHA;
       }
     })();
 
@@ -157,6 +205,26 @@ export class PercyEnv {
           return this.vars.HEAD;
         case 'harness':
           return this.vars.DRONE_SOURCE_BRANCH || this.vars.DRONE_COMMIT_BRANCH;
+        case 'woodpecker':
+          return this.vars.CI_COMMIT_BRANCH;
+        case 'aws-codebuild':
+          return this.vars.CODEBUILD_WEBHOOK_HEAD_REF;
+        case 'bamboo':
+          return this.vars.bamboo_planRepository_branchName;
+        case 'bitrise':
+          return this.vars.BITRISE_GIT_BRANCH;
+        case 'codemagic':
+          return this.vars.CM_BRANCH;
+        case 'vercel':
+          return this.vars.VERCEL_GIT_COMMIT_REF;
+        case 'cloudflare-pages':
+          return this.vars.CF_PAGES_BRANCH;
+        case 'gcb':
+          return this.vars.BRANCH_NAME;
+        case 'tekton':
+          return this.vars.TEKTON_BRANCH;
+        case 'argo-workflows':
+          return this.vars.ARGO_BRANCH;
       }
     })();
 
@@ -203,6 +271,24 @@ export class PercyEnv {
           return github(this.vars).pull_request?.number;
         case 'harness':
           return this.vars.DRONE_BUILD_EVENT === 'pull_request' && this.vars.DRONE_COMMIT_LINK?.split('/').slice(-1)[0];
+        case 'woodpecker':
+          return this.vars.CI_PIPELINE_EVENT === 'pull_request' && this.vars.CI_COMMIT_PULL_REQUEST;
+        case 'aws-codebuild':
+          return this.vars.CODEBUILD_WEBHOOK_TRIGGER?.match(/^pr\/(\d+)$/)?.[1];
+        case 'bamboo':
+          return this.vars.bamboo_repository_pr_key;
+        case 'bitrise':
+          return this.vars.BITRISE_PULL_REQUEST;
+        case 'codemagic':
+          return this.vars.CM_PULL_REQUEST === 'true' && this.vars.CM_PULL_REQUEST_NUMBER;
+        case 'vercel':
+          return this.vars.VERCEL_GIT_PULL_REQUEST_ID;
+        case 'gcb':
+          return this.vars._PR_NUMBER;
+        case 'tekton':
+          return this.vars.TEKTON_PULL_REQUEST;
+        case 'argo-workflows':
+          return this.vars.ARGO_PULL_REQUEST;
       }
     })();
 
@@ -261,6 +347,32 @@ export class PercyEnv {
           return this.vars.GITHUB_RUN_ID;
         case 'harness':
           return this.vars.HARNESS_BUILD_ID;
+        case 'woodpecker':
+          return this.vars.CI_PIPELINE_NUMBER;
+        case 'teamcity':
+          return this.vars.BUILD_NUMBER;
+        case 'aws-codebuild':
+          return this.vars.CODEBUILD_BUILD_ID;
+        case 'bamboo':
+          return this.vars.bamboo_buildResultKey;
+        case 'bitrise':
+          return this.vars.BITRISE_BUILD_NUMBER;
+        case 'codemagic':
+          return this.vars.CM_BUILD_ID;
+        case 'vercel':
+          return this.vars.VERCEL_DEPLOYMENT_ID;
+        case 'cloudflare-pages':
+          return this.vars.CF_PAGES_COMMIT_SHA || null;
+        case 'gocd':
+          return this.vars.GO_PIPELINE_COUNTER && this.vars.GO_STAGE_COUNTER
+            ? `${this.vars.GO_PIPELINE_COUNTER}.${this.vars.GO_STAGE_COUNTER}`
+            : this.vars.GO_PIPELINE_COUNTER;
+        case 'gcb':
+          return this.vars.BUILD_ID;
+        case 'tekton':
+          return this.vars.TEKTON_PIPELINE_RUN;
+        case 'argo-workflows':
+          return this.vars.ARGO_WORKFLOW_UID || this.vars.ARGO_WORKFLOW_NAME;
       }
     })();
 
 
@@ -0,0 +1,54 @@
+import PercyEnv from '@percy/env';
+
+describe('Argo Workflows', () => {
+  let env;
+
+  beforeEach(() => {
+    env = new PercyEnv({
+      PERCY_PARALLEL_TOTAL: '-1',
+      ARGO_WORKFLOW_NAME: 'my-workflow-42',
+      ARGO_WORKFLOW_UID: 'argo-uid-xyz',
+      ARGO_COMMIT_SHA: 'argo-commit-sha',
+      ARGO_BRANCH: 'argo-branch'
+    });
+  });
+
+  it('has the correct properties', () => {
+    expect(env).toHaveProperty('ci', 'argo-workflows');
+    expect(env).toHaveProperty('commit', 'argo-commit-sha');
+    expect(env).toHaveProperty('branch', 'argo-branch');
+    expect(env).toHaveProperty('pullRequest', null);
+    expect(env).toHaveProperty('parallel.nonce', 'argo-uid-xyz');
+    expect(env).toHaveProperty('parallel.total', -1);
+  });
+
+  it('has the correct properties for PR triggers', () => {
+    env = new PercyEnv({ ...env.vars, ARGO_PULL_REQUEST: '42' });
+    expect(env).toHaveProperty('pullRequest', '42');
+  });
+
+  it('falls back to workflow name when UID is absent', () => {
+    env = new PercyEnv({ ...env.vars, ARGO_WORKFLOW_UID: undefined });
+    expect(env).toHaveProperty('parallel.nonce', 'my-workflow-42');
+  });
+
+  it('is not detected when ARGO_WORKFLOW_NAME is unset (opt-in)', () => {
+    env = new PercyEnv({
+      ARGO_WORKFLOW_UID: 'argo-uid-xyz',
+      ARGO_COMMIT_SHA: 'argo-commit-sha'
+    });
+    expect(env).toHaveProperty('ci', null);
+  });
+
+  it('respects PERCY_* overrides', () => {
+    env = new PercyEnv({
+      ...env.vars,
+      PERCY_COMMIT: 'override-commit',
+      PERCY_BRANCH: 'override-branch',
+      PERCY_PULL_REQUEST: '999'
+    });
+    expect(env).toHaveProperty('commit', 'override-commit');
+    expect(env).toHaveProperty('branch', 'override-branch');
+    expect(env).toHaveProperty('pullRequest', '999');
+  });
+});
@@ -0,0 +1,64 @@
+import PercyEnv from '@percy/env';
+
+describe('AWS CodeBuild', () => {
+  let env;
+
+  beforeEach(() => {
+    env = new PercyEnv({
+      PERCY_PARALLEL_TOTAL: '-1',
+      CODEBUILD_BUILD_ID: 'codebuild:build-id',
+      CODEBUILD_RESOLVED_SOURCE_VERSION: 'codebuild-commit-sha',
+      CODEBUILD_WEBHOOK_HEAD_REF: 'refs/heads/codebuild-branch',
+      CODEBUILD_WEBHOOK_TRIGGER: 'branch/codebuild-branch'
+    });
+  });
+
+  it('has the correct properties', () => {
+    expect(env).toHaveProperty('ci', 'aws-codebuild');
+    expect(env).toHaveProperty('commit', 'codebuild-commit-sha');
+    expect(env).toHaveProperty('branch', 'codebuild-branch');
+    expect(env).toHaveProperty('pullRequest', null);
+    expect(env).toHaveProperty('parallel.nonce', 'codebuild:build-id');
+    expect(env).toHaveProperty('parallel.total', -1);
+  });
+
+  it('parses pull-request number from CODEBUILD_WEBHOOK_TRIGGER', () => {
+    env = new PercyEnv({
+      ...env.vars,
+      CODEBUILD_WEBHOOK_TRIGGER: 'pr/42'
+    });
+    expect(env).toHaveProperty('pullRequest', '42');
+  });
+
+  it('does not misattribute tag triggers as pull requests', () => {
+    env = new PercyEnv({
+      ...env.vars,
+      CODEBUILD_WEBHOOK_TRIGGER: 'tag/v1.0.0'
+    });
+    expect(env).toHaveProperty('pullRequest', null);
+  });
+
+  it('returns null for branch and PR on manual or EventBridge triggers (no webhook vars)', () => {
+    env = new PercyEnv({
+      PERCY_PARALLEL_TOTAL: '-1',
+      CODEBUILD_BUILD_ID: 'codebuild:build-id',
+      CODEBUILD_RESOLVED_SOURCE_VERSION: 'codebuild-commit-sha'
+    });
+    expect(env).toHaveProperty('ci', 'aws-codebuild');
+    expect(env).toHaveProperty('commit', 'codebuild-commit-sha');
+    expect(env).toHaveProperty('branch', null);
+    expect(env).toHaveProperty('pullRequest', null);
+  });
+
+  it('respects PERCY_* overrides', () => {
+    env = new PercyEnv({
+      ...env.vars,
+      PERCY_COMMIT: 'override-commit',
+      PERCY_BRANCH: 'override-branch',
+      PERCY_PULL_REQUEST: '999'
+    });
+    expect(env).toHaveProperty('commit', 'override-commit');
+    expect(env).toHaveProperty('branch', 'override-branch');
+    expect(env).toHaveProperty('pullRequest', '999');
+  });
+});