octocov

README

octocov

octocov is a tool for collecting code metrics (code coverage, code to test ratio and test execution time).

Key features of octocov are:

• Support multiple coverage report formats.
• Support multiple code metrics.
• Support for even generating coverage report badge.
• Have a mechanism to aggregate reports from multiple repositories.

Getting Started

On GitHub Actions

:octocat: GitHub Actions for octocov is here !!

First, run test with coverage report output.

For example, in case of Go language, add -coverprofile=coverage.out option as follows

$ go test ./... -coverprofile=coverage.out

Add .octocov.yml ( or octocov.yml ) file to your repository.

# .octocov.yml
coverage:
  path: coverage.out
codeToTestRatio:
  code:
    - '**/*.go'
    - '!**/*_test.go'
  test:
    - '**/*_test.go'
comment:
  enable: true

And set up a workflow file as follows and run octocov on GitHub Actions.

# .github/workflows/ci.yml
name: Test

on:
  pull_request:

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      -
        uses: actions/checkout@v2
      -
        uses: actions/setup-go@v2
        with:
          go-version: 1.17
      -
        name: Run tests with coverage report output
        run: go test ./... -coverprofile=coverage.out
      -
        uses: k1LoW/octocov-action@v0

Then, octocov comment the report of the code metrics to the pull request.

On Terminal

octocov acts as a code metrics viewer on the terminal.

For example, in case of Go language, add -coverprofile=coverage.out option as follows

$ go test ./... -coverprofile=coverage.out

And run octocov ls-files , octocov view [FILE...] and octocov diff [REPORT_A] [REPORT_B]

Usage example

Comment report to pull request

By setting comment:, comment the reports to pull request.

# .octocov.yml
comment:
  enable: true
  hideFooterLink: false # hide octocov link

octocov checks for "Code Coverage" by default. If it is running on GitHub Actions, it will also measure "Test Execution Time".

If you want to measure "Code to Test Ratio", set codeToTestRatio:.

comment:
  enable: true
codeToTestRatio:
  code:
    - '**/*.go'
    - '!**/*_test.go'
  test:
    - '**/*_test.go'

By setting diff: ( diff.path: or diff.datastores ) additionally, it is possible to show differences from previous reports as well.

comment:
  enable: true
diff:
  datastores:
    - s3://bucket/reports

Check for acceptable score

By setting coverage.acceptable:, the minimum acceptable coverage is specified.

If it is less than that value, the command will exit with exit status 1.

# .octocov.yml
coverage:
  acceptable: 60%

$ octocov
Error: code coverage is 54.9%, which is below the accepted 60.0%

By setting codeToTestRatio.acceptable:, the minimum acceptable "Code to Test Ratio" is specified.

If it is less than that value, the command will exit with exit status 1.

# .octocov.yml
codeToTestRatio:
  acceptable: 1:1.2
  code:
    - '**/*.go'
    - '!**/*_test.go'
  test:
    - '**/*_test.go'

$ octocov
Error: code to test ratio is 1:1.1, which is below the accepted 1:1.2

By setting testExecutionTime.acceptable:, the maximum acceptable "Test Execution Time" is specified (on GitHub Actions only) .

If it is greater than that value, the command will exit with exit status 1.

# .octocov.yml
testExecutionTime:
  acceptable: 1 min

$ octocov
Error: test execution time is 1m15s, which is below the accepted 1m

Generate report badges self.

By setting *.badge.path:, generate badges self.

# .octocov.yml
coverage:
  badge:
    path: docs/coverage.svg

# .octocov.yml
codeToTestRatio:
  badge:
    path: docs/ratio.svg

# .octocov.yml
testExecutionTime:
  badge:
    path: docs/time.svg

You can display the coverage badge without external communication by setting a link to this badge image in README.md, etc.

# mytool

![coverage](docs/coverage.svg)

Push report badges self.

By setting push.enable:, git push report badges self.

# .octocov.yml
coverage:
  badge:
    path: docs/coverage.svg
push:
  enable: true

Store report to datastores

By setting report:, store the reports to datastores and local path.

# .octocov.yml
report:
  datastores:
    - github://owner/coverages/reports
    - s3://bucket/reports

# .octocov.yml
report:
  path: path/to/report.json

Supported datastores

• GitHub repository
• S3
• GCS
• BigQuery
• Local

Central mode

By enabling central:, octocov acts as a central repository for collecting reports ( example ).

# .octocov.yml for central mode
central:
  enable: true
  root:                    .             # root directory or index file path of collected coverage reports pages. default: .
  reports:
    - bq://my-project/my-dataset/reports # datastore paths (URLs) where reports are stored. default: local://reports
  badges: badges                         # directory where badges are generated. default: badges
  push:
    enable: true                         # enable self git push

Supported datastores

• GitHub repository
• S3
• GCS
• BigQuery
• Local

View code coverage report of file

octocov ls-files command can be used to list files logged in code coverage report.

octocov view (alias: octocov cat) command can be used to view the file coverage report.

Configuration

coverage:

Configuration for code coverage.

coverage.path:

The path to the coverage report file.

If no path is specified, the default path for each coverage format will be scanned.

coverage:
  path: tests/coverage.xml

coverage.acceptable:

The minimum acceptable coverage.

coverage:
  acceptable: 60%

coverage.badge:

Set this if want to generate the badge self.

coverage.badge.path:

The path to the badge.

coverage:
  badge:
    path: docs/coverage.svg

codeToTestRatio:

Configuration for code to test ratio.

codeToTestRatio.code: codeToTestRatio.test:

Files to count.

codeToTestRatio:
  code:                  # files to count as "Code"
    - '**/*.go'
    - '!**/*_test.go'
  test:                  # files to count as "Test"
    - '**/*_test.go'

codeToTestRatio.acceptable:

The minimum acceptable ratio.

codeToTestRatio:
  acceptable: 1:1.2

codeToTestRatio.badge:

Set this if want to generate the badge self.

codeToTestRatio.badge.path:

The path to the badge.

codeToTestRatio:
  badge:
    path: docs/ratio.svg

testExecutionTime:

Configuration for test execution time.

testExecutionTime.acceptable

The minimum acceptable time.

testExecutionTime:
  acceptable: 1min

testExecutionTime.badge

Set this if want to generate the badge self.

testExecutionTime.badge.path

The path to the badge.

testExecutionTime:
  badge:
    path: docs/time.svg

push:

Configuration for git push badges self.

push.enable:

Enable git push

push:
  enable: true

comment:

Set this if want to comment report to pull request

comment.enable:

Enable comment.

comment:
  enable: true

comment.hideFooterLink:

Hide footer octocov link.

comment:
  hideFooterLink: true

diff:

Configuration for comparing reports.

diff.path:

Path of the report to compare.

diff:
  path: path/to/coverage.yml

diff:
  path: .octocov/owner/repo/report.json

diff.datastores:

Datastores where the report to be compared is stored.

diff:
  datastores:
    - local://.octocov       # Use .octocov/owner/repo/report.json
    - s3://my-bucket/reports # Use s3://my-bucket/reports/owner/repo/report.json

report:

Configuration for reporting to datastores.

report.path:

Path to save the report.

report:
  path: path/to/report.json

report.datastores:

Datastores where the reports are saved.

report:
  datastores:
    - github://owner/coverages/reports
    - s3://bucket/reports

GitHub repository

Use github:// scheme.

github://[owner]/[repo]@[branch]/[prefix]

Required environment variables:

• GITHUB_TOKEN or OCTOCOV_GITHUB_TOKEN
• GITHUB_REPOSITORY or OCTOCOV_GITHUB_REPOSITORY
• GITHUB_API_URL or OCTOCOV_GITHUB_API_URL (optional)

S3

Use s3:// scheme.

s3://[bucket]/[prefix]

Required permission:

• s3:PutObject

Required environment variables:

• AWS_ACCESS_KEY_ID or OCTOCOV_AWS_ACCESS_KEY_ID
• AWS_SECRET_ACCESS_KEY or OCTOCOV_AWS_SECRET_ACCESS_KEY
• AWS_SESSION_TOKEN or OCTOCOV_AWS_SESSION_TOKEN (optional)

GCS

Use gs:// scheme.

gs://[bucket]/[prefix]

Required permission:

• storage.objects.create
• storage.objects.delete

Required environment variables:

• GOOGLE_APPLICATION_CREDENTIALS or GOOGLE_APPLICATION_CREDENTIALS_JSON or OCTOCOV_GOOGLE_APPLICATION_CREDENTIALS or OCTOCOV_GOOGLE_APPLICATION_CREDENTIALS_JSON

BigQuery

Use bq:// scheme.

bq://[project ID]/[dataset ID]/[table]

Required permission:

• bigquery.datasets.get
• bigquery.tables.get
• bigquery.tables.updateData

Required environment variables:

• GOOGLE_APPLICATION_CREDENTIALS or GOOGLE_APPLICATION_CREDENTIALS_JSON or OCTOCOV_GOOGLE_APPLICATION_CREDENTIALS or OCTOCOV_GOOGLE_APPLICATION_CREDENTIALS_JSON

Datastore schema:

Datastore schema

If you want to create a table, execute the following command ( require bigquery.datasets.create ).

$ octocov --create-bq-table

Local

Use local:// or file:// scheme.

local://[path]

Example:

If the absolute path of .octocov.yml is /path/to/.octocov.yml

• local://reports ... /path/to/reports directory
• local://.reports ... /path/to/reports directory
• local://../reports ... /path/reports directory
• local:///reports ... /reports directory.

report.if:

Conditions for saving a report.

# .octocov.yml
report:
  if: env.GITHUB_REF == 'refs/heads/main'
  datastores:
    - github://owner/coverages/reports

The variables available in the if section are as follows

Variable name	Type	Description
year	int	Year of current time (UTC)
month	int	Month of current time (UTC)
day	int	Day of current time (UTC)
hour	int	Hour of current time (UTC)
weekday	int	Weekday of current time (UTC) (Sunday = 0, ...)
github.event_name	string	Event name of GitHub Actions ( ex. issues, pull_request )
github.event	object	Detailed data for each event of GitHub Actions (ex. github.event.action, github.event.label.name )
env.<env_name>	string	The value of a specific environment variable

central:

central.enable:

Enable central mode.

central:
  enable: true

:NOTICE: When central mode is enabled, other functions are automatically turned off.

central.root:

The root directory or index file ( index file example ) path of collected coverage reports pages. default: .

central:
  root: path/to

central.reports:

central.reports.datastores:

Datastore paths (URLs) where reports are stored. default: local://reports

central:
  reports:
    datastores:
      - local://reports
      - gs://my-gcs-bucket/reports

Use GitHub repository as datastore

When using the central repository as a datastore, perform badge generation via on.push.

# .octocov.yml
report:
  datastores:
    - github://owner/central-repo/reports

# .octocov.yml for central repo
central:
  enable: true
  reports:
    datastores:
      - local://reports
  push:
    enable: true

Use S3 bucket as datastore

When using the S3 bucket as a datastore, perform badge generation via on.schedule.

# .octocov.yml
report:
  datastores:
    - s3://my-s3-bucket/reports

# .octocov.yml for central repo
central:
  enable: true
  reports:
    datastores:
      - s3://my-s3-bucket/reports
  push:
    enable: true

Required permission (Central Repo):

• s3:GetObject
• s3:ListObject

Required environment variables (Central Repo):

• AWS_ACCESS_KEY_ID or OCTOCOV_AWS_ACCESS_KEY_ID
• AWS_SECRET_ACCESS_KEY or OCTOCOV_AWS_SECRET_ACCESS_KEY
• AWS_SESSION_TOKEN or OCTOCOV_AWS_SESSION_TOKEN (optional)

Use GCS bucket as datastore

When using the GCS bucket as a datastore, perform badge generation via on.schedule.

# .octocov.yml
report:
  datastores:
    - gs://my-gcs-bucket/reports

# .octocov.yml for central repo
central:
  enable: true
  reports:
    datastores:
      - gs://my-gcs-bucket/reports
  push:
    enable: true

Required permission (Central Repo):

• storage.objects.get
• storage.objects.list
• storage.buckets.get

Required environment variables (Central Repo):

• GOOGLE_APPLICATION_CREDENTIALS or GOOGLE_APPLICATION_CREDENTIALS_JSON or OCTOCOV_GOOGLE_APPLICATION_CREDENTIALS or OCTOCOV_GOOGLE_APPLICATION_CREDENTIALS_JSON

Use BigQuery table as datastore

When using the BigQuery table as a datastore, perform badge generation via on.schedule.

# .octocov.yml
report:
  datastores:
    - bq://my-project/my-dataset/reports

# .octocov.yml for central repo
central:
  enable: true
  reports:
    datastores:
      - bq://my-project/my-dataset/reports
  push:
    enable: true

Required permission (Central Repo):

• bigquery.jobs.create
• bigquery.tables.getData

Required environment variables (Central Repo):

• GOOGLE_APPLICATION_CREDENTIALS or GOOGLE_APPLICATION_CREDENTIALS_JSON or OCTOCOV_GOOGLE_APPLICATION_CREDENTIALS or OCTOCOV_GOOGLE_APPLICATION_CREDENTIALS_JSON

central.badges:

Directory where badges are generated. default: badges

central:
  badges: badges

Support local only.

central.push:

Configuration for git push index file and badges self.

central.push.enable:

Enable git push

push:
  enable: true

Supported coverage report formats

octocov supports multiple coverage report formats.

And octocov searches for the default path for each format.

If you want to specify the path of the report file, set coverage.path

coverage:
  path: /path/to/coverage.txt

Go coverage

Default path: coverage.out

LCOV

Default path: coverage/lcov.info

Support SF DA only

SimpleCov

Default path: coverage/.resultset.json

Clover

Default path: coverage.xml

Cobertura

Default path: coverage.xml

Supported code metrics

• Code Coverage
• Code to Test Ratio
• Test Execution Time (on GitHub Actions only)

Install

deb:

Use dpkg-i-from-url

$ export OCTOCOV_VERSION=X.X.X
$ curl -L https://git.io/dpkg-i-from-url | bash -s -- https://github.com/k1LoW/octocov/releases/download/v$OCTOCOV_VERSION/octocov_$OCTOCOV_VERSION-1_amd64.deb

RPM:

$ export OCTOCOV_VERSION=X.X.X
$ yum install https://github.com/k1LoW/octocov/releases/download/v$OCTOCOV_VERSION/octocov_$OCTOCOV_VERSION-1_amd64.rpm

apk:

Use apk-add-from-url

$ export OCTOCOV_VERSION=X.X.X
$ curl -L https://git.io/apk-add-from-url | sh -s -- https://github.com/k1LoW/octocov/releases/download/v$OCTOCOV_VERSION/octocov_$OCTOCOV_VERSION-1_amd64.apk

homebrew tap:

$ brew install k1LoW/tap/octocov

manually:

Download binary from releases page

go get:

$ go get github.com/k1LoW/octocov

docker:

$ docker pull ghcr.io/k1low/octocov:latest

Documentation

Overview

Copyright © 2021 Ken'ichiro Oyama <k1lowxb@gmail.com>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.