vearutop / sccdiff

A tool to show a number of changed lines

sccdiff

A tool to show the stats of code changes grouped by language, based on scc.

Blog post.

Usage

Usage of sccdiff:
  -all
        Include unmodified records in report.
  -basedir string
        Base directory.
  -baseref string
        Base reference. (default "HEAD")
  -groupdirs string
        Group files from directories, can be used to combine vendor, can have multiple comma separated values.
  -version
        Show app version and exit.

If there are no flags provided, sccdiff will try to check the code changes against git HEAD revision.

Result is an ASCII formatted table, suitable for Markdown.

| Language  | Files  |   Lines    |    Code    | Comments |  Blanks  | Complexity |    Bytes     |
|-----------|--------|------------|------------|----------|----------|------------|--------------|
| Go        | 2 (+2) | 385 (+385) | 298 (+298) | 1 (+1)   | 86 (+86) | 51 (+51)   | 7.4K (+7.4K) |
| Go (test) | 2 (+1) | 78 (+75)   | 58 (+56)   | 0        | 20 (+19) | 1 (+1)     | 1.8K (+1.7K) |
| License   | 1      | 21         | 17         | 0        | 4        | 0          | 1.1K (+13B)  |
| Makefile  | 1      | 40 (+1)    | 29 (+1)    | 4        | 7        | 2          | 1.2K (+42B)  |
| Markdown  | 1      | 30 (+13)   | 24 (+12)   | 0        | 6 (+1)   | 0          | 1.7K (+759B) |
| Shell     | 0 (-1) | 0 (-22)    | 0 (-15)    | 0 (-2)   | 0 (-5)   | 0          | 0B (-764B)   |
| YAML      | 5      | 308 (+3)   | 267 (+3)   | 25       | 16       | 0          | 9.8K (+49B)  |

GitHub Action

This is an example configuration to report code stats changes as pull request comment.

name: cloc
on:
  pull_request:

# Cancel the workflow in progress in newer build is about to start.
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  cloc:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        with:
          path: pr
      - name: Checkout base code
        uses: actions/checkout@v2
        with:
          ref: ${{ github.event.pull_request.base.sha }}
          path: base
      - name: Count Lines Of Code
        id: loc
        run: |
          curl -sLO https://github.com/vearutop/sccdiff/releases/download/v1.0.3/linux_amd64.tar.gz && tar xf linux_amd64.tar.gz
          sccdiff_hash=$(git hash-object ./sccdiff)
          [ "$sccdiff_hash" == "ae8a07b687bd3dba60861584efe724351aa7ff63" ] || (echo "::error::unexpected hash for sccdiff, possible tampering: $sccdiff_hash" && exit 1)
          OUTPUT=$(cd pr && ../sccdiff -basedir ../base)
          echo "${OUTPUT}"
          OUTPUT="${OUTPUT//$'\n'/%0A}"
          echo "::set-output name=diff::$OUTPUT"

      - name: Comment Code Lines
        continue-on-error: true
        uses: marocchino/sticky-pull-request-comment@v2
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          header: LOC
          message: |
            ### Lines Of Code

            ${{ steps.loc.outputs.diff }}

Example output: #2.