facebook / metro
File Age

File age measurements show the distribution of file ages (days since the first commit) and the recency of file updates (days since the latest commit).

Summary
  • Number of files: 241
  • Daily file updates (only one update per file and date counted): 1743
  • First update: 2015-02-07
  • Latest update: 2022-03-29
  • Days between first and latest update: 2607 (372 weeks, estimated 1860 working days)
  • Active days (at least one file change): 1314
  • Data:
File Change History Overall
File Age Distribution Overall
Days since first update
  • There are 241 files with 22,831 lines of code in files.
    • 235 files that are 366+ days old (22,609 lines of code)
    • 3 files that are 181-365 days old (73 lines of code)
    • 2 files that are 91-180 days old (130 lines of code)
    • 1 files that are 31-90 days old (19 lines of code)
    • 0 files that are 1-30 days old (0 lines of code)
99% | <1% | <1% | <1% | 0%
Legend:
366+
181-365
91-180
31-90
1-30

explore: zoomable circles
Latest Change Distribution Overall
Days since last update
  • There are 241 files with 22,831 lines of code in files.
    • 1 files have been last changed 366+ days ago (70 lines of code)
    • 0 files have been last changed 181-365 days ago (0 lines of code)
    • 211 files have been last changed 91-180 days ago (16,199 lines of code)
    • 22 files have been last changed 31-90 days ago (4,452 lines of code)
    • 7 files have been last changed 1-30 days ago (2,110 lines of code)
<1% | 0% | 70% | 19% | 9%
Legend:
366+
181-365
91-180
31-90
1-30

explore: zoomable circles
File Change History per File Extension
js, json, md, npmignore, snap, yml, svg, gitignore, css, scss, watchmanconfig, txt, eslintignore, ts
File Age Distribution per Extension
Days since first update
366+
181-365
91-180
31-90
1-30
js99% | <1% | <1% | 0% | 0%
yml100% | 0% | 0% | 0% | 0%
css100% | 0% | 0% | 0% | 0%
ts100% | 0% | 0% | 0% | 0%
scss0% | 0% | 0% | 100% | 0%
Latest Change Distribution per Extension
Days since last update
366+
181-365
91-180
31-90
1-30
yml100% | 0% | 0% | 0% | 0%
js0% | 0% | 71% | 19% | 9%
css0% | 0% | 100% | 0% | 0%
ts0% | 0% | 100% | 0% | 0%
scss0% | 0% | 0% | 100% | 0%
File Change History per Logical Decomposition
primary
primary (file age distribution)
Days since first update
366+
181-365
91-180
31-90
1-30
packages/metro98% | <1% | 1% | 0% | 0%
packages/metro-source-map100% | 0% | 0% | 0% | 0%
packages/metro-memory-fs100% | 0% | 0% | 0% | 0%
packages/metro-symbolicate100% | 0% | 0% | 0% | 0%
packages/metro-transform-plugins100% | 0% | 0% | 0% | 0%
packages/metro-runtime99% | <1% | 0% | 0% | 0%
packages/metro-inspector-proxy100% | 0% | 0% | 0% | 0%
packages/metro-transform-worker100% | 0% | 0% | 0% | 0%
packages/metro-config100% | 0% | 0% | 0% | 0%
packages/metro-resolver100% | 0% | 0% | 0% | 0%
scripts100% | 0% | 0% | 0% | 0%
packages/metro-cache100% | 0% | 0% | 0% | 0%
packages/buck-worker-tool100% | 0% | 0% | 0% | 0%
packages/metro-react-native-babel-preset100% | 0% | 0% | 0% | 0%
packages/metro-core100% | 0% | 0% | 0% | 0%
website/src92% | 0% | 0% | 7% | 0%
packages/metro-react-native-babel-transformer100% | 0% | 0% | 0% | 0%
packages/metro-hermes-compiler100% | 0% | 0% | 0% | 0%
website100% | 0% | 0% | 0% | 0%
eslint-rules100% | 0% | 0% | 0% | 0%
ROOT100% | 0% | 0% | 0% | 0%
packages/ob1100% | 0% | 0% | 0% | 0%
packages/metro-babel-transformer100% | 0% | 0% | 0% | 0%
packages/metro-babel-register79% | 20% | 0% | 0% | 0%
packages/metro-minify-uglify100% | 0% | 0% | 0% | 0%
packages/metro-minify-terser100% | 0% | 0% | 0% | 0%
packages/metro-cache-key100% | 0% | 0% | 0% | 0%
primary (latest change distribution)
Days since last update
366+
181-365
91-180
31-90
1-30
ROOT69% | 0% | 30% | 0% | 0%
packages/metro0% | 0% | 85% | <1% | 13%
packages/metro-source-map0% | 0% | 100% | 0% | 0%
packages/metro-symbolicate0% | 0% | 100% | 0% | 0%
packages/metro-runtime0% | 0% | 100% | 0% | 0%
packages/metro-config0% | 0% | 100% | 0% | 0%
packages/metro-transform-plugins0% | 0% | 54% | 0% | 45%
scripts0% | 0% | 81% | 18% | 0%
packages/metro-cache0% | 0% | 83% | 16% | 0%
packages/metro-core0% | 0% | 100% | 0% | 0%
packages/metro-react-native-babel-transformer0% | 0% | 100% | 0% | 0%
packages/metro-inspector-proxy0% | 0% | 21% | 78% | 0%
eslint-rules0% | 0% | 100% | 0% | 0%
packages/metro-babel-register0% | 0% | 100% | 0% | 0%
packages/ob10% | 0% | 100% | 0% | 0%
packages/metro-resolver0% | 0% | 11% | 88% | 0%
packages/buck-worker-tool0% | 0% | 18% | 81% | 0%
packages/metro-transform-worker0% | 0% | 6% | 93% | 0%
website/src0% | 0% | 9% | 90% | 0%
packages/metro-react-native-babel-preset0% | 0% | 6% | 27% | 65%
packages/metro-cache-key0% | 0% | 100% | 0% | 0%
packages/metro-minify-uglify0% | 0% | 6% | 93% | 0%
packages/metro-minify-terser0% | 0% | 6% | 93% | 0%
packages/metro-memory-fs0% | 0% | 0% | 100% | 0%
packages/metro-hermes-compiler0% | 0% | 0% | 100% | 0%
website0% | 0% | 0% | 100% | 0%
packages/metro-babel-transformer0% | 0% | 0% | 100% | 0%
Oldest Files (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes# contributors
setupJest.js
in scripts
 2 - 109 1830 14 9
build.js
in scripts
 94 5 59 1789 18 15
mapCoverage.js
in scripts
 18 - 109 1789 9 7
_getPackages.js
in scripts
 9 - 109 1789 5 5
circle.yml
in root
 70 - 533 1774 18 9
index.js
in packages/metro/src
 401 3 109 1598 86 36
DependencyGraph.js
in packages/metro/src/node-haste
 231 6 100 1598 72 28
types.flow.js
in packages/metro/src/ModuleGraph
 170 - 109 1598 53 18
ModuleCache.js
in packages/metro/src/node-haste
 97 2 109 1598 15 11
Module.js
in packages/metro/src/node-haste
 21 1 109 1598 21 13
traverseDependencies.js
in packages/metro/src/DeltaBundler
 408 13 109 1597 39 21
TerminalReporter.js
in packages/metro/src/lib
 353 1 109 1597 32 20
ModuleResolution.js
in packages/metro/src/node-haste/DependencyGraph
 288 6 100 1597 45 21
util.js
in packages/metro/src/ModuleGraph/output
 263 9 109 1597 32 21
util.js
in packages/metro/src/Bundler
 189 5 109 1597 29 20
DeltaCalculator.js
in packages/metro/src/DeltaBundler
 166 2 109 1597 27 16
node-haste.js
in packages/metro/src/ModuleGraph/node-haste
 155 5 109 1597 35 19
reporting.js
in packages/metro/src/lib
 143 2 109 1597 20 15
indexed-ram-bundle.js
in packages/metro/src/ModuleGraph/output
 129 3 109 1597 19 15
Package.js
in packages/metro/src/node-haste
 114 3 109 1597 15 14
types.flow.js
in packages/metro/src/shared
 113 1 109 1597 50 21
JsFileWrapping.js
in packages/metro/src/ModuleGraph/worker
 101 8 109 1597 29 15
formatBundlingError.js
in packages/metro/src/lib
 97 1 109 1597 20 16
BatchProcessor.js
in packages/metro/src/lib
 94 - 109 1597 11 10
Package.js
in packages/metro/src/ModuleGraph/node-haste
 87 3 109 1597 10 9
multiple-files-ram-bundle.js
in packages/metro/src/ModuleGraph/output
 81 2 109 1597 19 14
build.js
in packages/metro/src/commands
 77 1 109 1597 26 18
HasteFS.js
in packages/metro/src/ModuleGraph/node-haste
 76 4 109 1597 12 10
bundle.js
in packages/metro/src/shared/output
 67 3 109 1597 13 9
serve.js
in packages/metro/src/commands
 66 2 109 1597 28 20
test-helpers.js
in packages/metro/src/ModuleGraph
 62 3 109 1597 11 8
MultipartResponse.js
in packages/metro/src/Server
 60 7 109 1597 8 6
AssetPaths.js
in packages/metro/src/node-haste/lib
 55 3 109 1597 9 9
ModuleCache.js
in packages/metro/src/ModuleGraph/node-haste
 52 - 109 1597 8 7
meta.js
in packages/metro/src/shared/output
 51 3 109 1597 17 12
node-haste.flow.js
in packages/metro/src/ModuleGraph/node-haste
 50 - 109 1597 12 10
plain-bundle.js
in packages/metro/src/ModuleGraph/output
 43 1 109 1597 16 12
Module.js
in packages/metro/src/ModuleGraph/node-haste
 29 1 109 1597 7 6
parsePlatformFilePath.js
in packages/metro/src/node-haste/lib
 28 1 109 1597 6 6
generate.js
in packages/metro/src/ModuleGraph/worker
 26 1 109 1597 14 10
cli-utils.js
in packages/metro/src
 22 - 109 1597 13 12
relativizeSourceMap.js
in packages/metro/src/lib
 18 1 109 1597 11 8
JsonReporter.js
in packages/metro/src/lib
 18 1 109 1597 10 9
module.js
in packages/metro/src/ModuleGraph
 15 - 109 1597 10 8
createModuleIdFactory.js
in packages/metro/src/lib
 14 1 109 1597 6 6
cli.js
in packages/metro/src
 13 - 109 1597 13 12
writeFile.js
in packages/metro/src/shared/output
 11 - 109 1597 5 4
getMaxWorkers.js
in packages/metro/src/lib
 8 - 109 1597 7 7
TestBundle.js
in packages/metro/src/integration_tests/basic_bundle
 6 - 60 1597 8 8
AssetRegistry.js
in packages/metro/src/integration_tests/basic_bundle
 6 - 109 1597 6 6
Files Not Recently Changed (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes# contributors
circle.yml
in root
 70 - 533 1774 18 9
empty-module.js
in packages/metro-runtime/src/modules
 1 - 109 239 2 2
unbundle.js
in packages/metro/src/shared/output
 2 - 109 1465 5 5
magic-number.js
in packages/metro/src/shared/output/RamBundle
 2 - 109 1365 5 4
TestPolyfill.js
in packages/metro/src/integration_tests/basic_bundle
 2 - 109 1322 3 3
polyfill.js
in packages/metro/src/integration_tests/basic_bundle
 2 - 109 1322 3 3
setupJest.js
in scripts
 2 - 109 1830 14 9
index.js
in packages/metro-minify-uglify/src
 3 - 109 1520 6 6
index.js
in packages/metro-source-map/src/Consumer
 3 - 109 1017 2 2
Bar.js
in packages/metro/src/integration_tests/basic_bundle
 3 - 109 1597 6 6
Foo.js
in packages/metro/src/integration_tests/basic_bundle
 3 - 109 1597 6 6
export-6.js
in packages/metro/src/integration_tests/basic_bundle/import-export
 3 - 109 1253 2 2
export-null.js
in packages/metro/src/integration_tests/basic_bundle/import-export
 3 - 109 1302 2 2
export-primitive-default.js
in packages/metro/src/integration_tests/basic_bundle/import-export
 3 - 109 1302 2 2
Platforms.js
in packages/metro/src/ModuleGraph/worker
 3 - 109 1597 5 5
index.js
in packages/metro-minify-terser/src
 3 - 109 1299 3 3
export-5.js
in packages/metro/src/integration_tests/basic_bundle/import-export
 4 - 109 1253 2 2
countLines.js
in packages/metro/src/lib
 5 - 109 991 3 3
silent-console.js
in packages/metro/src/ModuleGraph
 5 - 109 1597 10 9
asyncRequire.js
in packages/metro-runtime/src/modules
 5 1 109 610 3 3
passthrough-syntax-plugins.js
in packages/metro-react-native-babel-preset/src
 6 - 109 784 2 2
hmr.js
in packages/metro-react-native-babel-preset/src/configs
 6 1 109 1375 7 6
getInlineSourceMappingURL.js
in packages/metro/src/DeltaBundler/Serializers/helpers
 6 1 109 1264 2 2
AssetRegistry.js
in packages/metro/src/integration_tests/basic_bundle
 6 - 109 1597 6 6
TypeScript.ts
in packages/metro/src/integration_tests/basic_bundle
 6 - 109 1352 5 4
export-2.js
in packages/metro/src/integration_tests/basic_bundle/import-export
 6 1 109 1302 3 3
export-3.js
in packages/metro/src/integration_tests/basic_bundle/import-export
 6 1 109 1302 3 3
export-4.js
in packages/metro/src/integration_tests/basic_bundle/import-export
 6 1 109 1302 3 3
export-1.js
in packages/metro/src/integration_tests/basic_bundle/import-export
 6 1 109 1302 3 3
types.flow.js
in packages/metro-cache/src
 6 - 109 1512 7 6
index.js
in packages/metro-react-native-babel-preset/src
 7 1 109 1375 7 7
errors.js
in packages/metro-core/src
 7 - 109 1465 4 4
execBundle.js
in packages/metro/src/integration_tests
 7 - 109 1322 6 5
ErrorBundle.js
in packages/metro/src/integration_tests/basic_bundle
 7 - 109 1347 5 5
7 - 109 1264 10 8
getMaxWorkers.js
in packages/metro/src/lib
 8 - 109 1597 7 7
index.js
in packages/metro-config/src
 9 - 109 1366 7 6
ResourceNotFoundError.js
in packages/metro/src/IncrementalBundler
 9 1 109 1276 2 2
HttpError.js
in packages/metro-cache/src/stores
 9 1 109 1387 5 5
NetworkError.js
in packages/metro-cache/src/stores
 9 1 109 1381 4 4
_getPackages.js
in scripts
 9 - 109 1789 5 5
GraphNotFoundError.js
in packages/metro/src/IncrementalBundler
 10 1 109 1276 2 2
RevisionNotFoundError.js
in packages/metro/src/IncrementalBundler
 10 1 109 1276 2 2
CommandFailedError.js
in packages/buck-worker-tool/src
 10 1 109 1449 4 4
index.js
in packages/metro-core/src
 11 - 109 1582 9 7
writeFile.js
in packages/metro/src/shared/output
 11 - 109 1597 5 4
preinstall.js
in scripts
 11 - 109 1233 2 2
index.js
in packages/metro-cache-key/src
 12 1 109 613 2 2
index.js
in packages/metro-symbolicate/src
 12 - 109 555 2 2
addParamsToDefineCall.js
in packages/metro-transform-plugins/src
 12 1 109 724 2 2
Most Recently Created Files (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes# contributors
custom.scss
in website/src/css
 19 - 42 42 1 1
types.js
in packages/metro/src/node-haste/DependencyGraph
 68 - 98 100 2 1
createHasteMap.js
in packages/metro/src/node-haste/DependencyGraph
 62 3 100 100 1 1
babel-plugin-metro-replace-ts-require-assignment.js
in packages/metro-babel-register/src/plugins
 20 1 109 199 2 2
empty-module.js
in packages/metro-runtime/src/modules
 1 - 109 239 2 2
createWebsocketServer.js
in packages/metro/src/lib
 52 - 109 254 3 3
ChromeHeapSnapshot.js
in packages/metro-symbolicate/src
 423 8 109 442 5 4
258 3 109 522 4 3
33 2 109 522 4 3
86 4 109 549 4 3
index.js
in packages/metro-symbolicate/src
 12 - 109 555 2 2
require.js
in packages/metro-runtime/src/polyfills
 735 18 109 610 4 4
HMRClient.js
in packages/metro-runtime/src/modules
 160 5 109 610 5 5
types.flow.js
in packages/metro-runtime/src/modules
 88 - 109 610 3 3
asyncRequire.js
in packages/metro-runtime/src/modules
 5 1 109 610 3 3
index.js
in packages/metro-cache-key/src
 12 1 109 613 2 2
profiling.js
in packages/buck-worker-tool/src
 44 4 109 669 2 2
HttpGetStore.js
in packages/metro-cache/src/stores
 41 3 109 671 3 3
strictly-null.js
in eslint-rules
 102 11 109 686 3 3
exclusionList.js
in packages/metro-config/src/defaults
 22 1 109 688 6 5
baseBytecodeBundle.js
in packages/metro/src/DeltaBundler/Serializers
 85 2 17 717 5 4
bytecode.js
in packages/metro/src/DeltaBundler/Serializers/helpers
 69 3 109 717 4 3
bundleToBytecode.js
in packages/metro/src/lib
 52 3 109 717 6 4
processBytecodeModules.js
in packages/metro/src/DeltaBundler/Serializers/helpers
 30 1 109 717 3 3
index.js
in packages/metro-hermes-compiler/src
 154 4 32 721 6 5
addParamsToDefineCall.js
in packages/metro-transform-plugins/src
 12 1 109 724 2 2
index.js
in packages/metro-transform-worker/src
 627 15 32 728 26 13
assetTransformer.js
in packages/metro-transform-worker/src/utils
 32 1 109 728 4 4
getMinifier.js
in packages/metro-transform-worker/src/utils
 15 1 109 728 2 2
import-export-plugin.js
in packages/metro-transform-plugins/src
 456 18 24 729 16 10
constant-folding-plugin.js
in packages/metro-transform-plugins/src
 147 5 109 729 10 7
inline-plugin.js
in packages/metro-transform-plugins/src
 145 3 109 729 10 6
createInlinePlatformChecks.js
in packages/metro-transform-plugins/src/utils
 130 1 109 729 6 4
normalizePseudoGlobals.js
in packages/metro-transform-plugins/src
 84 3 109 729 9 5
index.js
in packages/metro-transform-plugins/src
 38 5 109 729 10 4
getTransformCacheKey.js
in packages/metro/src/DeltaBundler
 34 1 109 731 7 4
index.js
in website/src/pages
 119 - 55 765 5 5
106 - 42 765 9 8
index.js
in website/src/pages/help
 94 - 42 765 6 6
styles.module.css
in website/src/pages
 23 - 109 765 2 2
passthrough-syntax-plugins.js
in packages/metro-react-native-babel-preset/src
 6 - 109 784 2 2
bundleToString.js
in packages/metro/src/lib
 31 1 109 956 4 3
symbolicate.js
in packages/metro/src/Server
 163 7 109 991 7 5
getExplodedSourceMap.js
in packages/metro/src/DeltaBundler/Serializers
 35 1 109 991 3 3
countLines.js
in packages/metro/src/lib
 5 - 109 991 3 3
logToConsole.js
in packages/metro/src/lib
 55 - 109 996 7 6
MappingsConsumer.js
in packages/metro-source-map/src/Consumer
 182 1 109 1017 4 3
composeSourceMaps.js
in packages/metro-source-map/src
 102 2 109 1017 10 8
SectionsConsumer.js
in packages/metro-source-map/src/Consumer
 101 3 109 1017 5 3
DelegatingConsumer.js
in packages/metro-source-map/src/Consumer
 50 1 109 1017 6 5
Most Recently Changed Files (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes# contributors
Server.js
in packages/metro/src
 1096 31 17 1465 96 38
getAppendScripts.js
in packages/metro/src/lib
 131 3 17 1488 21 12
types.flow.js
in packages/metro/src/DeltaBundler
 90 - 17 1434 23 12
baseBytecodeBundle.js
in packages/metro/src/DeltaBundler/Serializers
 85 2 17 717 5 4
baseJSBundle.js
in packages/metro/src/DeltaBundler/Serializers
 67 1 17 1249 11 6
import-export-plugin.js
in packages/metro-transform-plugins/src
 456 18 24 729 16 10
main.js
in packages/metro-react-native-babel-preset/src/configs
 185 2 29 1375 53 24
index.js
in packages/metro-transform-worker/src
 627 15 32 728 26 13
index.js
in packages/metro-hermes-compiler/src
 154 4 32 721 6 5
index.js
in packages/metro-babel-transformer/src
 81 1 32 1220 21 15
index.js
in packages/metro-resolver/src
 23 - 38 1514 10 6
Device.js
in packages/metro-inspector-proxy/src
 373 6 42 1151 23 13
106 - 42 765 9 8
index.js
in website/src/pages/help
 94 - 42 765 6 6
custom.scss
in website/src/css
 19 - 42 42 1 1
worker-tool.js
in packages/buck-worker-tool/src
 237 9 46 1449 15 12
lazy-imports.js
in packages/metro-react-native-babel-preset/src/configs
 79 - 53 1129 16 9
index.js
in website/src/pages
 119 - 55 765 5 5
index.js
in packages/metro-memory-fs/src
 1575 24 59 1508 37 23
build.js
in scripts
 94 5 59 1789 18 15
as-assets.js
in packages/metro/src/shared/output/RamBundle
 88 5 59 1365 8 6
FileStore.js
in packages/metro-cache/src/stores
 76 7 59 1486 13 10
TestBundle.js
in packages/metro/src/integration_tests/basic_bundle
 6 - 60 1597 8 8
InspectorProxy.js
in packages/metro-inspector-proxy/src
 161 3 65 1151 17 12
resolve.js
in packages/metro-resolver/src
 368 15 74 1514 28 15
types.js
in packages/metro-resolver/src
 72 - 74 1514 19 10
formatFileCandidates.js
in packages/metro-resolver/src
 13 1 74 1514 6 6
minifier.js
in packages/metro-minify-terser/src
 43 2 85 1299 12 10
minifier.js
in packages/metro-minify-uglify/src
 44 2 88 1520 17 15
stableHash.js
in packages/metro-cache/src
 12 1 95 1512 12 10
types.js
in packages/metro/src/node-haste/DependencyGraph
 68 - 98 100 2 1
generateFunctionMap.js
in packages/metro-source-map/src
 380 18 100 1113 15 8
ModuleResolution.js
in packages/metro/src/node-haste/DependencyGraph
 288 6 100 1597 45 21
DependencyGraph.js
in packages/metro/src/node-haste
 231 6 100 1598 72 28
createHasteMap.js
in packages/metro/src/node-haste/DependencyGraph
 62 3 100 100 1 1
Bundler.js
in packages/metro/src
 53 5 100 1465 30 17
require.js
in packages/metro-runtime/src/polyfills
 735 18 109 610 4 4
Symbolication.js
in packages/metro-symbolicate/src
 727 14 109 1142 25 10
collectDependencies.js
in packages/metro/src/ModuleGraph/worker
 491 26 109 1591 51 17
ChromeHeapSnapshot.js
in packages/metro-symbolicate/src
 423 8 109 442 5 4
traverseDependencies.js
in packages/metro/src/DeltaBundler
 408 13 109 1597 39 21
index.js
in packages/metro/src
 401 3 109 1598 86 36
TerminalReporter.js
in packages/metro/src/lib
 353 1 109 1597 32 20
HmrServer.js
in packages/metro/src
 285 6 109 1465 43 21
IncrementalBundler.js
in packages/metro/src
 284 12 109 1276 21 14
util.js
in packages/metro/src/ModuleGraph/output
 263 9 109 1597 32 21
258 3 109 522 4 3
source-map.js
in packages/metro-source-map/src
 247 9 109 1590 32 16
Assets.js
in packages/metro/src
 246 9 109 1465 16 13
loadConfig.js
in packages/metro-config/src
 222 8 109 1366 32 19