facebookincubator / electron
Source Code Overview

Analysis scope, overview of main, test, generated, deployment, build, and other code.

Source Code Analysis Scope
Files includes and excluded from analyses
patch
gni
gn
txt
plist
gyp
gitattributes
dockerignore
clang-format
coffee
  • 30 extensions are included in analyses: h, cc, js, md, html, ts, patch, json, mm, py, yml, gni, gn, gitignore, css, sh, txt, plist, cpp, gyp, gitattributes, dockerignore, ps1, xib, bat, xml, clang-format, json5, svg, coffee
  • 3 criteria are used to exclude files from analysis:
    • exclude files with path like ".*/[.][a-zA-Z0-9_]+.*" (Hidden files and folders) (26 files).
    • exclude files with path like ".*\.d\.ts" (Typescript definition files) (3 files).
    • exclude files with path like ".*/docs/.*" (Documentation) (338 files).
Overview of Analyzed Files
Basic stats on analyzed files
Intro
For analysis purposes we separate files in scope into several categories: main, test, generated, deployment and build, and other.

  • The main category contains all manually created source code files that are being used in the production.
  • Files in the main category are used as input for other analyses: logical decomposition, concerns, duplication, file size, unit size, and conditional complexity.
  • Test source code files are used only for testing of the product. These files are normally not deployed to production.
  • Build and deployment source code files are used to configure or support build and deployment process.
  • Generated source code files are automatically generated files that have not been manually changed after generation.
  • While a source code folder may contain a number of files, we are primarily interested in the source code files that are being written and maintained by developers.
  • Files containing binaries, documentation, or third-party libraries, for instance, are excluded from analysis. The exception are third-party libraries that have been changed by developers.

main136885 LOC (87%) 1404 files
test319 LOC (<1%) 3 files
generated0 LOC (0%) 0 files
build and deployment420 LOC (<1%) 13 files
other19413 LOC (12%) 255 files
Main Code
All manually created or maintained source code that defines logic of the product that is run in a production environment.
gni
gn
gyp
coffee
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  • The following criteria are used to filter files:
    • files with paths like ".*".
  • 1404 files match defined criteria (136,885 lines of code, 100.0% vs. main code):
    • 342 *.cc files (56,571 lines of code)
    • 165 *.ts files (33,187 lines of code)
    • 360 *.h files (18,156 lines of code)
    • 219 *.js files (10,526 lines of code)
    • 55 *.mm files (8,832 lines of code)
    • 44 *.py files (2,665 lines of code)
    • 174 *.html files (2,231 lines of code)
    • 14 *.gni files (1,923 lines of code)
    • 12 *.gn files (1,889 lines of code)
    • 7 *.yml files (547 lines of code)
    • 4 *.css files (138 lines of code)
    • 1 *.xml files (138 lines of code)
    • 2 *.cpp files (37 lines of code)
    • 2 *.gyp files (23 lines of code)
    • 1 *.json5 files (11 lines of code)
    • 1 *.ps1 files (10 lines of code)
    • 1 *.coffee files (1 lines of code)
  • " *.cc" is biggest, containing 41.33% of code.
  • " *.coffee" is smallest, containing 0% of code.


*.cc56571 LOC (41%) 342 files
*.ts33187 LOC (24%) 165 files
*.h18156 LOC (13%) 360 files
*.js10526 LOC (7%) 219 files
*.mm8832 LOC (6%) 55 files
*.py2665 LOC (1%) 44 files
*.html2231 LOC (1%) 174 files
*.gni1923 LOC (1%) 14 files
*.gn1889 LOC (1%) 12 files
*.yml547 LOC (<1%) 7 files
*.css138 LOC (<1%) 4 files
*.xml138 LOC (<1%) 1 files
*.cpp37 LOC (<1%) 2 files
*.gyp23 LOC (<1%) 2 files
*.json511 LOC (<1%) 1 files
*.ps110 LOC (<1%) 1 files
*.coffee1 LOC (<1%) 1 files
Test Code
Used only for testing of the product. Normally not deployed in a production environment.
gn
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  • The following criteria are used to filter files:
    • files with paths like ".*/test_.*".
    • files with paths like ".*_tests[.].*".
    • files with paths like ".*[-]test[-].*".
  • 3 files match defined criteria (319 lines of code, 0.2% vs. main code):
    • 1 *.py files (219 lines of code)
    • 1 *.yml files (94 lines of code)
    • 1 *.gn files (6 lines of code)
  • " *.py" is biggest, containing 68.65% of code.
  • " *.gn" is smallest, containing 1.88% of code.


*.py219 LOC (68%) 1 files
*.yml94 LOC (29%) 1 files
*.gn6 LOC (1%) 1 files
Build and Deployment Code
Source code used to configure or support build and deployment process.
gni
gitattributes
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  • The following criteria are used to filter files:
    • files with paths like ".*[.]git[a-z]+".
    • files with paths like ".*/[.]gitignore".
    • files with paths like ".*/package[.]json".
    • files with paths like ".*[.]sh".
    • files with paths like ".*/docker[-]compose[.]yml".
    • files with paths like ".*[.]bat".
    • files with paths like ".*/[.]gitattributes".
    • files with paths like ".*([.]|/)webpack([.]|/).*".
  • 13 files match defined criteria (420 lines of code, 0.3% vs. main code):
    • 7 *.js files (184 lines of code)
    • 3 *.sh files (129 lines of code)
    • 1 *.bat files (68 lines of code)
    • 1 *.gni files (37 lines of code)
    • 1 *.gitattributes files (2 lines of code)
  • " *.js" is biggest, containing 43.81% of code.
  • " *.gitattributes" is smallest, containing 0.48% of code.


*.js184 LOC (43%) 7 files
*.sh129 LOC (30%) 3 files
*.bat68 LOC (16%) 1 files
*.gni37 LOC (8%) 1 files
*.gitattributes2 LOC (<1%) 1 files
Other Code
patch
txt
plist
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  • The following criteria are used to filter files:
    • files with paths like ".*/[.]gitignore".
    • files with paths like ".*[.]md".
    • files with paths like ".*[.]json".
    • files with paths like ".*[.]plist".
    • files with paths like ".*[.]xib".
    • files with paths like ".*[.]patch".
    • files with paths like ".*/README[.][a-z0-9]+".
    • files with paths like ".*[.]txt".
    • files with paths like ".*[.]svg".
    • files with paths like ".*/[.]dockerignore".
  • 255 files match defined criteria (19,413 lines of code, 14.2% vs. main code):
    • 164 *.patch files (16,768 lines of code)
    • 76 *.json files (1,648 lines of code)
    • 7 *.md files (343 lines of code)
    • 3 *.txt files (328 lines of code)
    • 1 *.xib files (213 lines of code)
    • 4 *.plist files (113 lines of code)
  • " *.patch" is biggest, containing 86.38% of code.
  • " *.plist" is smallest, containing 0.58% of code.


*.patch16768 LOC (86%) 164 files
*.json1648 LOC (8%) 76 files
*.md343 LOC (1%) 7 files
*.txt328 LOC (1%) 3 files
*.xib213 LOC (1%) 1 files
*.plist113 LOC (<1%) 4 files
Analyzers
Info about analyzers used for source code examinations.
  • *.cc files are analyzed with CppAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • Advanced heuristic dependency analysis
  • *.ts files are analyzed with TypeScriptAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • No dependency analysis
  • *.h files are analyzed with CppAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • Advanced heuristic dependency analysis
  • *.js files are analyzed with JavaScriptAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • No dependency analysis
  • *.mm files are analyzed with CppAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • Advanced heuristic dependency analysis
  • *.py files are analyzed with PythonAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • Basic heuristic dependency analysis
  • *.html files are analyzed with HtmlAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • Advanced heuristic dependency analysis
  • *.gni files are analyzed with DefaultLanguageAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)
    • No unit size analysis
    • No conditional complexity analysis
    • No dependency analysis
  • *.gn files are analyzed with PythonAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • Basic heuristic dependency analysis
  • *.yml files are analyzed with YamlAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • No unit size analysis
    • No conditional complexity analysis
    • No dependency analysis
  • *.css files are analyzed with CssAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • No unit size analysis
    • No conditional complexity analysis
    • No dependency analysis
  • *.xml files are analyzed with XmlAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • No unit size analysis
    • No conditional complexity analysis
    • No dependency analysis
  • *.cpp files are analyzed with CppAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • Advanced heuristic dependency analysis
  • *.gyp files are analyzed with PythonAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • Unit size analysis
    • Conditional complexity analysis
    • Basic heuristic dependency analysis
  • *.json5 files are analyzed with JsonAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)
    • No unit size analysis
    • No conditional complexity analysis
    • No dependency analysis
  • *.ps1 files are analyzed with DefaultLanguageAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)
    • No unit size analysis
    • No conditional complexity analysis
    • No dependency analysis
  • *.coffee files are analyzed with DefaultLanguageAnalyzer:
    • All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)
    • Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)
    • No unit size analysis
    • No conditional complexity analysis
    • No dependency analysis


2022-04-15 05:10