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heimashi/kotlin_tips

[DEPRECATED] 用Kotlin去提高生产力:汇总Kotlin相对于Java的优势，以及怎么用Kotlin去简洁、务实、高效、安全开发的Tips

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Kotlin
★ 1,425
commit 12b187fb4c0e
scored 2026-11-14
scoring prov-5+qual-2+sec-2

AI provenance

none-detected

Confidence: 54%
Coverage: 100%

Estimated share of AI-generated code. Explicit attribution is a lower bound.

Code quality

70/100

adequate

Confidence: 90%
Coverage: 100%

Complexity, duplication, lint density, tests, CI, docs and review process.

Security

76/100

adequate

Confidence: 85%
Coverage: 100%

Secrets, static analysis, vulnerable dependencies, CI and supply-chain posture.

Dispute or request a re-score Full report JSON

AI provenance

0% none-detected

No AI attribution or AI-consistent velocity signals detected.

How the score is built

Explicitly attributed share0%
Unattributed share in AI-pace bursts0%
Estimated AI-generated share0%
AI tool configuration files0
Work sessions at AI pace0
Releases at AI pacenot measured
Coding-style index (1.0+ means possible)0.00

Lines added per month all AI-attributed share

2017-121,328 · 0% AI
2018-010 · 0% AI
2018-0274 · 0% AI
2018-037 · 0% AI
2018-040 · 0% AI
2018-1078 · 0% AI

Evidence by analyzer

Explicit AI attributionok

attributed_commit_share: 0.0%
attributed_commits: 0
attributed_loc: 0
attributed_loc_share: 0.0%
commits: 56
effective_loc: 1,487
tools_detected: 0

AI tool configurationok

artifacts: 0
tools_configured: 0
workflow_agents: 0

Commit velocityok

excluded_import_loc: 0
flagged_loc: 0
flagged_loc_share: 0.0%
flagged_units: 0
max_loc_per_hour: 93.47
measured_loc: 1,487
median_loc_per_hour: 30.56
pr_timed_units: 0
pre_ai_era_burst_loc: 0
pre_ai_era_bursts: 0
pre_ai_era_measured_loc: 1,487
work_units: 22

Release velocityskipped

Coding styleok

count:assistant_voice: 0
count:emoji_in_code: 0
count:narrated_steps: 0
count:placeholder: 0
files:assistant_voice: 0
files:emoji_in_code: 0
files:narrated_steps: 0
files:placeholder: 0
index: 0
lines_scanned: 1,334
per_kloc:assistant_voice: 0
per_kloc:emoji_in_code: 0
per_kloc:narrated_steps: 0
per_kloc:placeholder: 0

Code quality

70 adequate

Code quality is adequate: test-to-source ratio 0.06, no CI test run detected; 0% of function code in complex or long functions; 3% duplicated lines. Weakest area: testing.

How the score is built

Complexity100
Duplication82
Lint and smells100
Tests and CI33
Documentation40
Type safetynot measured
Review processnot measured

Evidence by analyzer

Complexity (lizard)ok

complex_functions: 0
function_nloc: 612
functions: 105
long_functions: 0
many_param_functions: 0
mean_ccn: 1.50
p90_ccn: 3
risky_nloc_share: 0.0%

Duplication (jscpd)ok1 item

6+ duplicated lines: app/src/main/java/com/sw/kotlin/tip3/KotlinTip3.kt:16 and app/src/main/java/com/sw/kotlin/tip3/KotlinTip3.kt:40

compared_lines: 735
duplicated_lines: 24
duplicated_share: 3.3%
files: 29

Lintok

findings: 0
scanned_lines: 1,334
weighted_findings: 0

Tests and CIok

check:ci_present: no
check:ci_runs_lint: no
check:ci_runs_tests: no
check:has_tests: yes
check:test_ratio: no
check:tests_cochange: yes
ci_files: 0
cochange_commits: 30
cochange_share: 36.7%
source_lines: 1,334
test_lines: 80
test_ratio: 0.06

Documentationok1 item

README.md README.md

check:changelog: no
check:contributing: no
check:license: no
check:readme: yes
readme_lines: 1,486

Type safetyskipped

Security

76 adequate

Security posture is adequate: no high-impact findings. Weakest area: posture.

How the score is built

Secrets100
Static analysis (SAST)85
Vulnerable dependenciesnot measured
CI workflowsnot measured
Security posture0
OpenSSF Scorecardnot measured

Evidence by analyzer

OpenSSF Scorecardskipped

no published OpenSSF Scorecard result for this repo

Package registriesskipped

no registry dependencies declared

Secrets (gitleaks)ok

secrets_current: 0
secrets_history: 0
secrets_low_confidence: 0
secrets_nonprod: 0

Static analysis (opengrep)ok

findings: 1
findings_high: 0
findings_low: 0
findings_medium: 1
parse_errors: 0
scanned_lines: 1,334
weighted_findings: 0.60

Dependencies (osv-scanner)skipped

CI workflows (zizmor)skipped

Security postureok

check:dependency_updates: no
check:lockfiles: yes
check:security_policy: no
check:signed_commits: no
signed_commit_share: 21.4%
unpinned_manifests: 0

Release downloadsok

binary_assets: 0
signals: 0
suspicious: 0

Findings

1 medium

Severity	Rule	Location	Message	Tool
medium	`opengrep/java.android.security.exported_activity`	app/src/main/AndroidManifest.xml:12	The application exports an activity. Any application on the device can launch the exported activity which may compromise the integrity of your application or its data. Ensure that any exported activities do not have privileged access...	Static analysis (opengrep)

Tools and coverage

Every analyzer that ran on this commit. A failed or skipped tool is a coverage gap: its share of the score is left out and the coverage figure drops.

Analyzer	Pillar	Status	Version	Findings	Note
AI tool configuration	AI provenance	ok	`signatures-v1`	0
Explicit AI attribution	AI provenance	ok	`signatures-v1`	0
Release velocity	AI provenance	skipped	`—`	0
Coding style	AI provenance	ok	`—`	0
Commit velocity	AI provenance	ok	`prov-4`	0
Complexity (lizard)	Code quality	ok	`lizard 1.25.1`	0
Documentation	Code quality	ok	`—`	0
Duplication (jscpd)	Code quality	ok	`repotrust-dup-w6`	0
Lint	Code quality	ok	`opengrep 1.33.1; rules f1d2b562b414`	0
Tests and CI	Code quality	ok	`—`	0
Type safety	Code quality	skipped	`—`	0
CI workflows (zizmor)	Security	skipped	`—`	0
Dependencies (osv-scanner)	Security	skipped	`—`	0
Release downloads	Security	ok	`—`	0
Security posture	Security	ok	`—`	0
Package registries	Security	skipped	`—`	0	no registry dependencies declared
Static analysis (opengrep)	Security	ok	`opengrep 1.33.1; rules f1d2b562b414`	1
OpenSSF Scorecard	Security	skipped	`—`	0	no published OpenSSF Scorecard result for this repo
Secrets (gitleaks)	Security	ok	`gitleaks 8.30.1`	0

Score history

Scores from different scoring versions aren't directly comparable.

Scored	Commit	Scoring	AI provenance	Quality	Security
2026-11-14	`12b187fb4c0e`	`prov-5+qual-2+sec-2`	0%	70	76
2026-11-14	`12b187fb4c0e`	`prov-4+qual-2+sec-2`	0%	70	76

Embed a badge

Maintainers can show these in a README. Badges update when the repository is re-scored.

[![RepoTrust ai](https://repotrust.synapticcyber.com/badge/github.com/heimashi/kotlin_tips/ai.svg)](https://repotrust.synapticcyber.com/r/github.com/heimashi/kotlin_tips/)

[![RepoTrust quality](https://repotrust.synapticcyber.com/badge/github.com/heimashi/kotlin_tips/quality.svg)](https://repotrust.synapticcyber.com/r/github.com/heimashi/kotlin_tips/)

[![RepoTrust security](https://repotrust.synapticcyber.com/badge/github.com/heimashi/kotlin_tips/security.svg)](https://repotrust.synapticcyber.com/r/github.com/heimashi/kotlin_tips/)

Full text report

Repository: https://github.com/heimashi/kotlin_tips
Commit: 12b187fb4c0ee1d7f8a0bc217d5df3aaf63f515e
Generated: 2026-11-14T14:52:05+00:00
Scorer 0.1.0, scoring prov-5+qual-2+sec-2, report schema v2

Scores

Pillar	Score	Signal	Confidence	Coverage
AI provenance (estimated AI-generated share)	0	none-detected	54%	100%
Code quality	70	adequate	90%	100%
Security	76	adequate	85%	100%

AI provenance

No AI attribution or AI-consistent velocity signals detected.

Explicitly attributed share (lower bound): 0.0%
Unattributed share in AI-consistent velocity bursts: 0.0%
Estimated AI-generated share: 0.0%

Month	Lines added	Attributed to AI
2017-12	1,328	0%
2018-02	74	0%
2018-03	7	0%
2018-10	78	0%

AI provenance describes how code was produced; it is not a quality judgment. Unless attribution is explicit, these are signals consistent with AI generation, not proof. Squash/rebase workflows, imported code, and rewritten history reduce accuracy.

Code quality

Code quality is adequate: test-to-source ratio 0.06, no CI test run detected; 0% of function code in complex or long functions; 3% duplicated lines. Weakest area: testing.

Area	Score
Complexity (lizard)	100
Duplication	82
Code smells (Opengrep)	100
Tests and CI	33
Documentation	40
Type safety	n/a
Process (Scorecard review/maintenance)	n/a

Functions: 105; mean complexity 1.5, 90th percentile 3; 0 complex and 0 long functions
Duplicated lines: 3.3% of 735 compared
Tests: 80 test lines for 1,334 source lines (ratio 0.06); CI test commands: none detected; 37% of recent source commits also change tests
Docs missing or thin: license, contributing, changelog

Security

Security posture is adequate: no high-impact findings. Weakest area: posture.

Area	Score
Secrets (gitleaks, tree + history)	100
Static analysis (Opengrep)	85
Vulnerable dependencies (OSV)	n/a
CI workflows (zizmor)	n/a
Posture (policy, updates, signing, lockfiles)	0
OpenSSF Scorecard	n/a

Posture checks passed: lockfiles; missing: security policy, dependency updates, signed commits

Top findings

Severity	Finding	Location
medium	`opengrep/java.android.security.exported_activity`: The application exports an activity. Any application on the device can launch the exported activity which may compromise the integrity of your application or its data. Ensure that any exported activities do not have privileged access to your application's control plane. [confidence medium]	app/src/main/AndroidManifest.xml:12

Static signals only: the scorer never runs the project's code. Secret findings are pattern matches that were not verified, and secret values are never stored.

Repository profile

Source lines: 1,334; test lines: 80

Language	Lines
Kotlin	1,126
Java	288