feat: Incremental Build - #1267

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feat/incremental-build-4

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Commits on May 27, 2026

refactor(project): Rename watch handler events
RandomByte
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cb24b3d
refactor: Fix linting issues

matz3
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RandomByte
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06265a6
test(fs): Adjust getIntegrity tests

matz3
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af1dea5
refactor: Integrity handling

matz3
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2b00295
test(fs): Adjust getIntegrity tests again

matz3
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d37a099
refactor: Consider npm-shrinkwrap.json

matz3
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db65bc8
refactor: Rename Tracker => MonitoredReader
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86ac03d
refactor(project): Use workspace version in stage name
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871c323
refactor(project): Fix stage writer order
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fcef958
refactor(fs): Add Switch reader
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35daf57
refactor(project): Cleanup WatchHandler debounce
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0bbae4c
refactor(project): Fix outdated API call
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7e6207a
refactor(project): Fix build signature calculation
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10abde8
refactor(fs): Pass integrity to cloned resource
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d8ed11b
refactor(project): Fix pattern matching and resource comparison
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16a1307
refactor(project): Import/overwrite stages from cache after saving
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589a414
test(builder): Sort files/folders

matz3
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d5fedd6
refactor(builder): Prevent duplicate entries on app build from cache

matz3
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557b93d
refactor(fs): Refactor MonitorReader API
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6825875
refactor(fs): Always calculate integrity on clone
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bb1f93a
refactor(fs): Add getter to WriterCollection
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e3fc555
refactor(builder): Remove cache handling from tasks
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4a9f88d
refactor(builder): Add env variable for disabling workers
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69cbcd4
refactor(project): Track resource changes using hash trees
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2b11afb
refactor(project): Compress cache using gzip
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586f2db
refactor(fs): Ensure writer collection uses unique readers
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cc78b34
refactor(fs): Remove write tracking from MonitoredReaderWriter
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0a22161
refactor(project): Identify written resources using stage writer
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4397625
refactor(project): Add basic differential update functionality
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da20690
refactor(builder): Re-add cache handling in tasks
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0a5f64b
refactor(project): Cleanup HashTree implementation
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62da565
refactor(project): Make WatchHandler wait for build to finish before triggering again
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0d8c360
refactor(project): Use cleanup hooks in update builds
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a4521d2
refactor(logger): Log skipped projects/tasks info in grey color
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d5a6542
refactor(project): Fix cache update mechanism
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a2b538c
refactor(project): WatchHandler emit error event
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d8010a4
refactor(server): Exit process on rebuild error
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b49c3f4
refactor(project): Fix delta indices
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ef36ddb
refactor(logger): Support differential update task logging
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f3aa487
refactor(project): Provide differential update flag to logger
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7cecf1b
refactor(server): Log error stack on build error
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5721765
refactor(project): Add chokidar
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40da0a4
refactor(project): Limit build signature to project name and config
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b9cbce3
refactor(project): Improve ResourceRequestGraph handling
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aa1a17d
refactor(server): Remove obsolete code from serveResources middleware

matz3
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0158aec
refactor(project): Add env variable to skip cache update
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b496fae
refactor(project): Fix hash tree updates
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a8a7b8a
refactor(project): Remove unused 'cacheDir' param

matz3
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6611d9a
fix(project): Prevent projects from being always invalidated

matz3
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8cd318e
fix(project): Prevent exception when not building in watch mode

matz3
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e4671d2
refactor(project): Only store new or modified cache entries
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a90aa2f
refactor(project): Refactor project cache validation
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dd1300a
refactor(project): Extract project build into own method

matz3
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1e21a99
fix(project): Clear cleanup task queue

matz3
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4b2438a
test(project): Add ProjectBuilder integration test

matz3
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b75953d
test(project): Add failing ProjectBuilder test case

matz3
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ba88f19
test(project): Enhance ProjectBuilder test assertions

matz3
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22334cb
test(project): Add library test case for ProjectBuilder

matz3
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bc64da0
test(project): Build dependencies in application test of ProjectBuilder

matz3
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99753af
test(project): Refactor ProjectBuilder test code

matz3
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17fa719
refactor(project): Refactor task resource request tracking
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e84ae46
test(project): Add theme-library test and update assertions for fixed behavior

matz3
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95bb2e8
test(project): Use graph.build for ProjectBuilder test

matz3
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4f0f748
test(project): Add custom task to ProjectBuilder test

matz3
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e87ede6
fix(project): Fix custom task execution

matz3
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da1b82e
fix(project): Prevent writing cache when project build was skipped

matz3
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84a42d4
refactor(project): Create dedicated SharedHashTree class
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bca9c45
refactor(project): Re-implement differential task build
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e739d85
refactor(project): Fix HashTree tests
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b7f3f99
refactor(project): Fix handling cache handling of removed resources
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59843e4
test(project): Add cases for theme.library.e with seperate less files

maxreichmann
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48f883f
refactor(project): Update graph traversal
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3150fb2
refactor(project): Add BuildServer and BuildReader
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33ba705
refactor(project): Refactor project result cache
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9ba2753
refactor(server): Integrate BuildServer
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a239157
refactor(project): Small build task cache restructuring, cleanup
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9a5662b
refactor(project): JSDoc cleanup
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b9fad46
refactor(project): ProjectBuilder cleanup
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d29beab
refactor(builder): Small stringReplacer cleanup
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64c5fed
revert(fs): Add Switch reader
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3344eef
refactor(project): Add perf logging, cleanups
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33fbae0
refactor(project): Add cache write perf logging
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445656a
refactor(project): Improve stage change handling
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3e48e97
refactor(project): Implement queue system in BuildServer

matz3
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0ffdd90
refactor(server): Add error callback and handle in CLI
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a8eb3e4
refactor(project): ProjectBuilder to provide callback on project built
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09db83d
refactor(project): Do not always include root project in build
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436151b
refactor(project): Refactor BuildServer init, add tests
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35d6788
refactor(project): Minor ProjectBuildCache and ProjectBuildContext refactoring
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7c954ee
refactor(project): Handle abort signal in ProjectBuilder et al
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574a917
refactor(project): Refactor BuildServer queue
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9b611ee
refactor(project): Fix cache invalidation tracking
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9766d2b
refactor(project): Fix stage restore
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fb01c69
refactor(project): Add cache support for custom tasks
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e2b9e53
test(project): Add file deletion case for theme.library.e

maxreichmann
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9769c76
fix(builder): Filter out non-JS resources in minify task

matz3
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7fc40bb
test(project): Add test case for minify task fix

matz3
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425c79c
test(project): Add ResourceRequestManager tests
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8b65488
refactor(project): Fix derived trees unexpected upsert in parents
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9733b30
test(project): Adjust test cases for .library changes

matz3
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8aaf30b
fix: Ensure dot-file matching with micromatch

matz3
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e2416e6
test(project): Add test case for ui5.yaml changes

matz3
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bc8f5ed
fix(project): Handle BuildServer race condition when changing files

matz3
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e7a4b8f
test(project): Remove test.serial.only

matz3
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2868a40
deps: Fix depcheck issues

matz3
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7d433cd
test(project): Update ProjectBuildCache and TaskBuildCache tests
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e858a41
test(project): Update ProjectBuilder tests and JSDoc
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f5beb16
test(project): Update TaskRunner tests
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c6c5b80
test(project): Update various tests
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b39d4fc
test(project): Add missing comma

matz3
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bd6f826
refactor(project): Improve abort signal handling
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493651c
refactor(project): Fix additional tests
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5e173f2
refactor(project): Move dependency indice init into PBC
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e261c5f
fix(project): Improve BuildServer stability on resource changes

matz3
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bfb57fc
test(project): Add case for BuildServer which requests application and library resources

maxreichmann
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80930f9
test(project): Add cases

maxreichmann
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ee1aa28
test(project): Add cases for project type "module" (ProjectBuilder)

maxreichmann
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5d5cb2d
refactor(project): ProjectBuildCache state handling
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7a9d1c9
test(project): Update node_modules deps to be aligned with actual fixtures folders

maxreichmann
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ad5e35c
test(project): Add "library" dependencies to "module" fixture

maxreichmann
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b6c80da
test(project): Update ProjectBuildContext tests

matz3
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46e2731
Revert "test(project): Update node_modules deps to be aligned with actual fixtures folders"

maxreichmann
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384edc2
refactor(project): Rename task param 'supportsDifferentialUpdates' => 'supportsDifferentialBuilds'
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fd57bd3
test(project): Extend FixtureTester (ProjectBuilder) for non-task project types (e.g. modules)

maxreichmann
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ba13474
test(project): Add cases for ui5.yaml path mapping (Modules)

maxreichmann
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9e3aee0
test(project): Add race condition test
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5730669
test(project): Add modify file case for modules

maxreichmann
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149c3b1
test(project): Add case for multiple custom tasks (tag handling)

maxreichmann
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7f299a9
fix(project): Fix build manifest access

matz3
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7f23e09
test(project): Fix multiple-task tests (Address review)

maxreichmann
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a930066
test(project): Re-Add eslint rule (removed by accident)

maxreichmann
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83a2b2c
refactor(fs): Add MonitoredResourceTagCollection
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7326cb2
refactor(project): Add basic handling for resource tags
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47ceda7
test(project): Add another multiple-task / tag handling case

maxreichmann
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45ed1d9
test(project): Add case for dependency content changes

maxreichmann
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cef7b6c
test(project): Clean-up temporary comments

maxreichmann
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868779a
test(project): Add case for JSDoc builds (Standard Tasks)

maxreichmann
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b622eaa
test(project): Address review of @RandomByte

maxreichmann
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6efcd3b
refactor(project): Enhance build cache logging for signatures
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ba484f7
test(project): Add basic library build test for BuildServer
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f29a488
test(project): Add cases for custom preload configs (for application, component & library)

maxreichmann
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e270bf7
refactor(project): Adapt tests after refactoring of resource tag handling
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ecc27cb
refactor(fs): Fix resource integrity for resources without content
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f8c96c7
test(logger): Fix tests
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96f48f3
test(project): Add case for self-contained builds (Standard Tasks)

maxreichmann
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2e7a026
refactor(project): Fix incorrect stage signature when using delta stage cache
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9344ef7
test(project): Add cases for custom bundling builds

maxreichmann
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d891958
test(project): Add cases for file deletion (TC4)

d3xter666
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bd2917a
test(project): Refactor "custom tasks 2" case

maxreichmann
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8a3daf0
test(project): Add tests for various dependency relations

maxreichmann
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be209df
test(project): Add cases for race condition (add/remove file)

d3xter666
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8e66262
refactor(project): Cleanup cache state handling
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888818f
feat(project): Incorporate resource tags into hash tree leaf node hashes
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1f8f02e
refactor(fs): Add ResourceTagCollection#getAllTagsForResource method
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a8e80db
refactor(project): Add test for cross-project resource tag handling
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b30e39a
refactor(fs): Expose getTags method on resource
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653db47
refactor(project): Fix tag handling, align test
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35d0193
refactor(project): Improve build abort handling, ease race-condition test
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6d33de6
refactor(project): Cleanup comment
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03b1be2
test(project): Add case for --include-dependency (Cover build with only some dependencies, not all)

maxreichmann
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b2783d4
test(project): Check if sap-ui-version.json contains correct content

d3xter666
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8c3b6bf
test(project): Add case for removing a dependency

maxreichmann
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0c9633f
refactor(project): Validate source files after build finishes
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65d0123
refactor(project): Store source files in CAS
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da37c8c
refactor(project): Use stored source files in ProjectResources
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6297f67
test(project): Add tests for cross project source file modifications
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5219071
perf(project): Parallelize I/O in HashTree.upsertResources and TreeRegistry.flush
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a528fb1
perf(project): Parallelize I/O in ResourceRequestManager
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627ee8e
perf(project): Skip redundant metadata checks for shared tree nodes
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faa8ec3
perf(project): Prefetch stage cache lookups for next task
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79a81ab
perf(project): Add performance instrumentation to build cache
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84ff8c9
perf(project): Add orchestration-level timing instrumentation
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716c67b
perf(project): Parallelize source index initialization across projects
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4f4f6ec
perf(project): Defer cacache I/O in cached stage proxy readers
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2130b2a
perf(project): Skip redundant dependency index updates for tasks without requests
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146d824
docs: Add skills
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8cdee30
perf(project): Skip redundant CAS lookups for unchanged resources during cache writes
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5a8254d
perf(project): Suppress redundant change propagation on initial stage import
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b8be120
perf(project): Skip dependency index refresh when no changes were propagated
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61a863b
perf(project): Add instrumentation for allTasksCompleted, recordTaskResult, and source freeze
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0b574ed
perf(project): Pre-populate known CAS integrities from cached source stage metadata
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c3fc17a
perf(project): Reuse previous frozen source metadata for unchanged files
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15e1293
refactor(server): Skip bundling by default
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e917d9f
test(project): Add tests for dependency index refresh skip optimization
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883c3f7
docs(fs): Add skill for @ui5/fs package
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f94fce4
perf(project): Replace cacache with custom CAS for faster dist writes
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f6704a1
docs(project): Update incremental build skill
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ace983b
perf(fs): Add CAS-aware fast path in FileSystem._write()
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1f23ab1
test(project): Add tests for delta cacheInfo path in recordTaskResult
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d51f350
perf(project): Replace file-based metadata cache with SQLite storage
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4a1113d
perf(project): Replace file-based CAS with SQLite BLOB storage
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c4ecba4
perf(project): Add batch transaction support to MetadataStorage
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1f3512f
refactor(project): Merge CAS and metadata into unified BuildCacheStorage
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cbbe910
perf(project): Compress metadata blobs in BuildCacheStorage
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dd7c628
perf(project): Add batch signature existence check for cache lookups
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52e02ad
perf(project): Tune SQLite PRAGMA settings for build cache
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536dad6
perf(project): Use shallow hash recomputation for ancestor directory rehashing
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8ff5819
test(project): Add shallow recomputation safety tests and remove dead code
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48d9554
refactor: Fix eslint problem
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b02de50
perf(project): Optimize writeStageResources compression and add batch existence check
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b76f749
perf(project): Move compression outside transaction and parallelize via async gzip
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0bcb02e
perf(fs): Use buffer factory for integrity computation to avoid double I/O
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1c33a27
perf(project): Skip compression for tiny resources in build cache
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f9f13b8
refactor(fs): Fix missing import
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8c4121c
test(cli): Fix build and serve tests for incremental build changes
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274c417
test(server): Fix tests for incremental build server changes

Claude
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0a61694
refactor(server): Destroy build server on close to prevent process hang
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5512653
test(builder): Isolate build cache data directory in tests
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d7cb4e4
refactor(project): Set busy_timeout before WAL mode to prevent lock errors
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06debde
test(builder): Expect undefined for unchanged resources in processors
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76b95b4
test(project): Use correct event stubs in build server assertions
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4d56205
refactor(project): Apply style transforms to frozen source reader
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5028c87
refactor(fs): Replace deprecated getStatInfo() calls with isDirectory()
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4b02bed
refactor(project): Correct stage reader priority for ThemeLibrary and Module
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8c567f4
refactor(project): Recognize build manifest version 1.0 and apply cached tags
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3a1ce99
test(logger): Cover isDifferentialBuild branch in Console writer
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b2362dc
test(fs): Improve code coverage to meet thresholds
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67a25fb
test(project): Improve code coverage to meet configured thresholds
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7ef1afc
refactor(project): Add reference counting to CacheManager singleton
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3f22c22
refactor(project): Handle source changes during build as retriable in BuildServer
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0ce06c3
refactor(cli): Resolve esmock race condition in serve tests on Node 22
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94a7c21
refactor(project): Resolve EBUSY errors on Windows from leaked SQLite handles
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50b51da
test(server): Improve code coverage to meet configured thresholds
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a3e718d
refactor(project): Normalize path separators in getVirtualPath on Windows
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8eaaa9b
refactor(project): Prevent state corruption when source changes arrive during index re-init
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2eca9e4
refactor(builder): Fix Windows test timeouts caused by leaked handles and missing error handler
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1dca90c
refactor(fs): Handle legacy streams lacking Symbol.asyncIterator in Resource.setStream
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20e6642
test(project): Update skip reason for dependency content changes test
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000f20c
refactor(project): Remove unused ssri dependency
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a7cb9f5
refactor(project): Resolve JSDoc type expression parse errors in jsdoc-generate
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37b56c6
refactor: Support of referencing legacy middlewares in UI5 CLI middleware configuration (#1367)

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1e5ba40
refactor(project): Verify size to detect mtime-preserved content changes
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98a1e5f
refactor(project): Detect file replacement via inode in cache check
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4696d87
refactor(project): Rename matchResourceMetadataStrict to isResourceUnchanged
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ef82eac
refactor(project): Cleanup build cache utils
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7043174
refactor(fs): Stop fabricating inode 0 for in-memory resources
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95a90df
refactor(project): Add ui5DataDir build option for cache isolation
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ba3aef7
docs: Reflect documentation review comments (#1393)

d3xter666
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7754784
feat: Offer --cache option to control cache mode (Incremental Build) (#1368)

maxreichmann
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f64a0bd
refactor(project): Improve cacheMode: Off handling
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a67c83d
test(project): Fix renamed SnapshotCache enum test
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46e116a

Commits on May 29, 2026