DevOps sur Android : from one git push to a Play Store release

Slides in English.

Talk given à Devoxx Belgium and Droidcon Vienna

Transcript

1. DevOps on Android
   From one git push to a Play Store release
   @JeremMartinez
   www.jeremie-martinez.com
   

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4. Processes
   depend on context
   

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5. DevOps
   n.pr [dɛvops]
   Promotes a release process which bring together through communication
   and collaboration both development and operational teams.
   Play Store
   

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6. Continuous integration
   Automated build
   Fail fast
   Constantly tested
   Constant packaging
   Easier release
   

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7. Source of a
   solid process
   

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8. Packaging
   Quality
   Tests
   Build
   Push
   

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9. Push
   dev
   master
   v21 v22
   

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10. Push
    feature
    dev
    master
    v21 v22
    

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11. Push
    feature
    dev
    master
    v21 v22
    

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12. Merge request mandatory
    At least one reviewer
    Merge always by the reviewer
    Branch must always be rebased
    Push
    

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13. Build
    Push Packaging
    Quality
    Tests
    

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14. Build
    2 builds: debug and release
    

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15. Build
    

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16. Build
    Isolated builds
    Different architectures possible
    Empower developers
    

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17. Packaging
    Quality
    Tests
    Build
    Push
    

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18. Tests
    Yes, even on Android
    

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19. JUnit4
    public final class LordOfTheRingsTest {

    

    @Before

    public void setup() { … }

    

    @Test

    public void shouldBringThePrecious() { … }
    @After

    public void tearDown() { … }
    }
    Unit tests
    

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20. Robolectric
    public final class LordOfTheRingsTest {

    

    @Before

    public void setup() { … }

    

    @Test

    public void shouldBringThePrecious() { … }
    @After

    public void tearDown() { … }
    }
    Unit tests
    

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21. @RunWith(RobolectricTestRunner.class)

    @Config(manifest = Config.NONE)
    Unit tests
    Robolectric
    public final class LordOfTheRingsTest {

    

    @Before

    public void setup() { … }

    

    @Test

    public void shouldBringThePrecious() { … }
    @After

    public void tearDown() { … }
    }
    

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22. Integration tests
    Espresso or Robotium
    

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23. Integration tests
    Espresso or Robotium
    

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24. Integration tests
    Only test
    main user-flows
    

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25. Integration tests
    Search Cart Payment Tickets
    Example for Captain Train
    

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26. Tests
    

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27. Quality
    Tests
    Build
    Push Packaging
    

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28. Quality
    

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29. Quality
    Lint
    

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30. Quality
    Lint
    Custom
    

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31. Quality
    public class AttrPrefixDetector extends ResourceXmlDetector {

    

    public static final Issue ISSUE = Issue.create("AttrNotPrefixed", //

    "You must prefix your custom attr by `ct`", //

    "We prefix all our attrs to avoid clashes.", //

    Category.TYPOGRAPHY, //

    5, // Priority

    Severity.WARNING, //

    new Implementation(AttrPrefixDetector.class, //
    Scope.RESOURCE_FILE_SCOPE) //
    );
    

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32. Quality
    // Only XML files

    @Override

    public boolean appliesTo(@NonNull Context context,

    @NonNull File file) {

    return LintUtils.isXmlFile(file);

    }
    

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33. Quality
    // Only values folder

    @Override

    public boolean appliesTo(ResourceFolderType folderType) {

    return ResourceFolderType.VALUES == folderType;

    }
    

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34. Quality
    // Only attr tag

    @Override

    public Collection getApplicableElements() {

    return Collections.singletonList(TAG_ATTR);

    }
    

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35. Quality
    // Only name attribute

    @Override

    public Collection getApplicableAttributes() {

    return Collections.singletonList(ATTR_NAME);

    }
    

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36. Quality
    @Override

    public void visitElement(XmlContext context, Element element) {

    final Attr attributeNode = element.getAttributeNode(ATTR_NAME);

    if (attributeNode != null) {

    final String val = attributeNode.getValue();

    if (!val.startsWith("android:") && !val.startsWith("ct")) {

    context.report(ISSUE,

    attributeNode,

    context.getLocation(attributeNode),

    "You must prefix your custom attr by `ct`");

    }

    }

    }
    

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37. Quality
    public final class CaptainRegistry extends IssueRegistry {

    @Override

    public List getIssues() {

    return Collections.singletonList(AttrPrefixDetector.ISSUE);

    }

    }
    

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38. Quality
    

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39. Quality
    Do not underestimate
    Lint rules
    

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40. Packaging
    Quality
    Tests
    Build
    Push
    

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41. Packaging
    Filter your resources
    Proguard
    Assemble
    Sign your APK
    Zipalign your APK
    zipalign -z 4 in.apk out.apk
    

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42. Packaging
    Quality
    Tests
    Build
    Push
    Continuous integration
    

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43. Packaging
    Quality
    Tests
    Build
    Push
    Continuous integration
    

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44. Continuous integration
    

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45. Automate releases in order to deliver quickly, easily and
    reliably
    Continuous integration Continuous delivery
    

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46. Continuous deployment
    

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47. « Too many
    updates »
    

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48. Not enough
    content
    

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49. Can ≠ Want
    

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50. But …
    What is a release ?
    

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51. Beta
    Rollout
    5%
    Rollout
    50%
    Release
    100%
    1 week 1 week
    

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52. Beta
    Rollout
    5%
    Rollout
    50%
    Release
    100%
    Every 6 weeks
    On Tuesday
    

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53. Continuous integration Continuous delivery
    dev
    master
    v21
    

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54. Publish
    Screenshots
    Continuous delivery
    

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55. Screenshots
    Don’t neglect
    screenshots
    

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56. Screenshots
    Automate
    screenshots
    

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57. Home-made with UiAutomator
    Spoon by Square
    Screengrab by Fastlane
    Screenshots
    

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58. Publish
    Continuous delivery
    Screenshots
    

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59. Avoid bad surprises
    Publish
    

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60. Check your
    permissions
    Publish
    

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61. private static final String[] EXPECTED_PERMISSIONS = { … }
    @Test

    public void shouldMatchPermissions() throws Exception {

    final AndroidManifest androidManifest = new AndroidManifest( //

    Fs.fileFromPath("build/intermediates/manifests/full/debug/AndroidManifest.xml"), //

    null, //

    null //

    );

    final Set requestedPermissions = new HashSet<>(androidManifest.getUsedPermissions());

    

    assertThat(requestedPermissions).containsOnly(EXPECTED_PERMISSIONS);

    }
    Publish
    

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62. Tests database
    upgrades
    Publish
    

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63. testCompile 'org.xerial:sqlite-jdbc:3.8.10.1'

    Publish
    

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64. @Test

    public void upgradeShouldBeTheSameAsCreate() throws Exception {

    DbOpenHelper helper = new DbOpenHelper(RuntimeEnvironment.application);

    

    helper.onCreate(newDatabase());

    helper.onUpgrade(originDatabase(), 1, CURRENT_VERSION);

    

    Set newSchema = extractSchema(newFile.getAbsolutePath());

    Set upgradedSchema = extractSchema(upgradedFile.getAbsolutePath());

    

    assertThat(upgradedSchema).isEqualTo(newSchema);

    }
    Publish
    

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65. connection = DriverManager.getConnection(JDBC_SQLITE + url);

    

    tables = connection.getMetaData().getTables(null, null, null, null);

    while (tables.next()) {

    

    final String tableType = tables.getString("TABLE_TYPE");

    final String tableName = tables.getString("TABLE_NAME");

    schema.add(tableType + " " + tableName);

    Publish
    

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66. columns = connection.getMetaData().getColumns(null, null, tableName, null);

    while (columns.next()) {

    

    final String columnName = columns.getString("COLUMN_NAME");

    final String columnType = columns.getString("TYPE_NAME");

    final String columnNullable = columns.getString("IS_NULLABLE");

    final String columnDefault = columns.getString("COLUMN_DF");

    schema.add("TABLE " + tableName +

    " COLUMN " + columnName + " " + columnType +

    " NULLABLE=" + columnNullable +

    " DEFAULT=" + columnDefault);

    }
    Publish
    

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67. Tables / Views
    Columns
    Primary Keys
    Cross-references
    Indexes
    Publish
    

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68. Publish
    

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69. Publish
    

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70. Publish
    

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71. Publish
    

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72. Publish
    

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73. Publish
    

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74. Choose your
    client
    HTTP - Java - Ruby - Python
    Publish
    

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75. compile 'com.google.apis:google-api-services-androidpublisher:v2-rev20-1.21.0'

    Publish
    

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76. http = GoogleNetHttpTransport.newTrustedTransport();

    json = JacksonFactory.getDefaultInstance();

    

    GoogleCredential credential = new GoogleCredential.Builder().

    setTransport(http).

    setJsonFactory(json).

    setServiceAccountPrivateKeyId(KEY_ID).

    setServiceAccountId(SERVICE_ACCOUNT_EMAIL).

    setServiceAccountScopes(AndroidPublisherScopes.ANDROIDPUBLISHER).

    setServiceAccountPrivateKeyFromPemFile(secretFile).

    build();

    

    publisher = new AndroidPublisher.Builder(http, json, credential).

    setApplicationName(PACKAGE).

    build();
    Publish
    

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77. AndroidPublisher.Edits edits = publisher.edits();

    

    AppEdit edit = edits.insert(PACKAGE, null).execute();

    String id = edit.getId();
    Publish
    

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78. Listings listings = edits.listings();
    Listing listing = new Listing().

    setFullDescription(description).

    setShortDescription(shortDescription).

    setTitle(title);

    

    listings.update(PACKAGE, id, "en_US", listing).execute();
    Publish
    

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79. Images images = edits.images();

    

    FileContent content = new FileContent(PNG_MIME_TYPE, file);

    

    images.upload(PACKAGE, id, "en_US", "phone5", content).execute();
    Publish
    "tablet7"
    "tablet9"

    "wear"
    

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80. 

    Apks apks = edits.apks();
    

    FileContent apkContent = new FileContent(APK_MIME_TYPE, apkFile);

    Apk apk = apks.upload(PACKAGE, id, apkContent).execute();
    

    int version = apk.getVersionCode();

    Publish
    

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81. 

    // Assign APK to Track

    Tracks tracks = edits.tracks();
    

    Track track = new Track().setVersionCodes(version);
    

    tracks.update(PACKAGE, id, "production", track).execute();
    Publish
    "rollout"
    "beta"
    "alpha"
    

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82. 

    // Update APK listing

    Apklistings apklistings = edits.apklistings();
    

    ApkListing whatsnew = new ApkListing().setRecentChanges(changes);
    

    apklistings.update(PACKAGE, id, version, "en_US", whatsnew).execute();
    Publish
    

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83. edits.validate(PACKAGE, id).execute();
    

    edits.commit(PACKAGE, id).execute();
    Publish
    

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84. Listings
    Screenshots
    APK
    What’s new
    Track
    Publish
    

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85. Home-made
    Gradle plugin
    Jenkins plugin
    Publish
    

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86. Screenshots
    Continuous delivery
    Publish
    

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87. Publish
    Screenshots
    Continuous delivery
    Packaging
    Quality
    Tests
    Build
    Push
    Continuous integration
    

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88. Questions ?
    @JeremMartinez
    www.jeremie-martinez.com
    

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