guardian/hackday-gcloud-example-applications
File Churn
File change frequency (churn) shows the distribution of file updates (days with at least one commit).
Overview
File Change Frequency Overall
  • There are 3 files with 99 lines of code.
    • 0 files changed more than 100 times (0 lines of code)
    • 0 files changed 51-100 times (0 lines of code)
    • 0 files changed 21-50 times (0 lines of code)
    • 0 files changed 6-20 times (0 lines of code)
    • 3 files changed 1-5 times (99 lines of code)
0% | 0% | 0% | 0% | 100%
Legend:
101+
51-100
21-50
6-20
1-5

explore: grouped by folders | grouped by update frequency | data
Contributors Count Frequency Overall
  • There are 3 files with 99 lines of code.
    • 0 files changed by more than 25 contributors (0 lines of code)
    • 0 files changed by 11-25 contributors (0 lines of code)
    • 0 files changed by 6-10 contributors (0 lines of code)
    • 0 files changed by 2-5 contributors (0 lines of code)
    • 3 files changed by 1 contributor (99 lines of code)
0% | 0% | 0% | 0% | 100%
Legend:
26+
11-25
6-10
2-5
1

explore: grouped by folders | grouped by contributors count | data
File Change Frequency per File Extension
gitignore, txt, md, sbt, sh, json, scala, js, xml, properties
File Change Frequency per Extension
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
scala0% | 0% | 0% | 0% | 100%
js0% | 0% | 0% | 0% | 100%
xml0% | 0% | 0% | 0% | 100%
File Change Frequency per Logical Decomposition
primary
primary (file change frequency)
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
scala-app0% | 0% | 0% | 0% | 100%
node-app0% | 0% | 0% | 0% | 100%
Most Frequently Changed Files (Top 3)

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsline
churn		first
contributor		latest
contributor
index.js
in node-app/src
 23 - 2025-03-13 2025-05-06 4 1 +41 / -5 adam.fisher adam.fisher
Hello.scala
in scala-app/src/main/scala/example
 65 1 2025-03-13 2025-05-06 4 1 +130 / -27 adam.fisher adam.fisher
logback.xml
in scala-app/src/main/resources
 11 - 2025-03-13 2025-03-13 1 1 +11 / -0 adam.fisher adam.fisher
Files With Most Churn (Top 3)
Based on the number of lines added and deleted across all commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsline
churn		first
contributor		latest
contributor
Hello.scala
in scala-app/src/main/scala/example
 65 1 2025-03-13 2025-05-06 4 1 +130 / -27 adam.fisher adam.fisher
index.js
in node-app/src
 23 - 2025-03-13 2025-05-06 4 1 +41 / -5 adam.fisher adam.fisher
logback.xml
in scala-app/src/main/resources
 11 - 2025-03-13 2025-03-13 1 1 +11 / -0 adam.fisher adam.fisher
Files With Most Contributors (Top 3)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsline
churn		first
contributor		latest
contributor
index.js
in node-app/src
 23 - 2025-03-13 2025-05-06 4 1 +41 / -5 adam.fisher adam.fisher
Hello.scala
in scala-app/src/main/scala/example
 65 1 2025-03-13 2025-05-06 4 1 +130 / -27 adam.fisher adam.fisher
logback.xml
in scala-app/src/main/resources
 11 - 2025-03-13 2025-03-13 1 1 +11 / -0 adam.fisher adam.fisher
Files With Least Contributors (Top 3)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsline
churn		first
contributor		latest
contributor
Hello.scala
in scala-app/src/main/scala/example
 65 1 2025-03-13 2025-05-06 4 1 +130 / -27 adam.fisher adam.fisher
index.js
in node-app/src
 23 - 2025-03-13 2025-05-06 4 1 +41 / -5 adam.fisher adam.fisher
logback.xml
in scala-app/src/main/resources
 11 - 2025-03-13 2025-03-13 1 1 +11 / -0 adam.fisher adam.fisher
Correlations

File Size vs. Number of Changes: 3 points

node-app/src/index.js x: 23 lines of code y: 4 # changes scala-app/src/main/scala/example/Hello.scala x: 65 lines of code y: 4 # changes scala-app/src/main/resources/logback.xml x: 11 lines of code y: 1 # changes
4.0
# changes
  min: 1.0
  average: 3.0
  25th percentile: 1.0
  median: 4.0
  75th percentile: 4.0
  max: 4.0
0 65.0
lines of code
min: 11.0 | average: 33.0 | 25th percentile: 11.0 | median: 23.0 | 75th percentile: 65.0 | max: 65.0

Number of Contributors vs. Number of Changes: 3 points

node-app/src/index.js x: 1 # contributors y: 4 # changes scala-app/src/main/resources/logback.xml x: 1 # contributors y: 1 # changes
4.0
# changes
  min: 1.0
  average: 3.0
  25th percentile: 1.0
  median: 4.0
  75th percentile: 4.0
  max: 4.0
0 1.0
# contributors
min: 1.0 | average: 1.0 | 25th percentile: 1.0 | median: 1.0 | 75th percentile: 1.0 | max: 1.0

Number of Contributors vs. File Size: 3 points

node-app/src/index.js x: 1 # contributors y: 23 lines of code scala-app/src/main/scala/example/Hello.scala x: 1 # contributors y: 65 lines of code scala-app/src/main/resources/logback.xml x: 1 # contributors y: 11 lines of code
65.0
lines of code
  min: 11.0
  average: 33.0
  25th percentile: 11.0
  median: 23.0
  75th percentile: 65.0
  max: 65.0
0 1.0
# contributors
min: 1.0 | average: 1.0 | 25th percentile: 1.0 | median: 1.0 | 75th percentile: 1.0 | max: 1.0

Number of Changes vs. Line Churn: 25 points

node-app/README.md x: 3 # changes y: 158 line churn node-app/scripts/deploy.sh x: 4 # changes y: 197 line churn node-app/src/index.js x: 4 # changes y: 46 line churn scala-app/README.md x: 4 # changes y: 175 line churn scala-app/build.sbt x: 4 # changes y: 95 line churn scala-app/scripts/deploy.sh x: 3 # changes y: 199 line churn scala-app/src/main/scala/example/Hello.scala x: 4 # changes y: 157 line churn README.md x: 4 # changes y: 240 line churn node-app/scripts/deploy-v2.sh x: 2 # changes y: 186 line churn node-app/APPLICATION_NAME x: 1 # changes y: 2 line churn node-app/package.json x: 3 # changes y: 22 line churn node-app/package-lock.json x: 1 # changes y: 1679 line churn .gitignore x: 2 # changes y: 67 line churn node-app/.gitignore x: 2 # changes y: 51 line churn node-app/Dockerfile x: 1 # changes y: 20 line churn scala-app/.gitignore x: 1 # changes y: 8 line churn
1679.0
line churn
  min: 1.0
  average: 133.2
  25th percentile: 2.0
  median: 22.0
  75th percentile: 166.5
  max: 1679.0
0 4.0
# changes
min: 1.0 | average: 2.08 | 25th percentile: 1.0 | median: 1.0 | 75th percentile: 3.5 | max: 4.0

Number of Contributors vs. Line Churn: 3 points

node-app/src/index.js x: 1 # contributors y: 46 line churn scala-app/src/main/scala/example/Hello.scala x: 1 # contributors y: 157 line churn scala-app/src/main/resources/logback.xml x: 1 # contributors y: 11 line churn
157.0
line churn
  min: 11.0
  average: 71.33
  25th percentile: 11.0
  median: 46.0
  75th percentile: 157.0
  max: 157.0
0 1.0
# contributors
min: 1.0 | average: 1.0 | 25th percentile: 1.0 | median: 1.0 | 75th percentile: 1.0 | max: 1.0

File Size vs. Line Churn: 3 points

node-app/src/index.js x: 23 lines of code y: 46 line churn scala-app/src/main/scala/example/Hello.scala x: 65 lines of code y: 157 line churn scala-app/src/main/resources/logback.xml x: 11 lines of code y: 11 line churn
157.0
line churn
  min: 11.0
  average: 71.33
  25th percentile: 11.0
  median: 46.0
  75th percentile: 157.0
  max: 157.0
0 65.0
lines of code
min: 11.0 | average: 33.0 | 25th percentile: 11.0 | median: 23.0 | 75th percentile: 65.0 | max: 65.0