1+ name : " Change Log Entry Verifier and Milestone Setter"
2+ run-name : Change log entry verifier and milestone setter
3+ on :
4+ - pull_request_target
5+
6+ env :
7+ GH_TOKEN : ${{ secrets.GITHUB_TOKEN }}
8+ ISSUE : ${{ github.event.issue.html_url }}
9+ SKIP_CHANGELOG_CHECK_LABEL : ${{ '"skip-changelog-check"' }}
10+ CHANGE_LOG_FILE : ${{ 'lucene/CHANGES.txt' }}
11+
12+ jobs :
13+ changelog-verifier-and-milestone-setter :
14+ name : Verify Change Log Entry and Set Milestone
15+ runs-on : ubuntu-latest
16+
17+ steps :
18+ - name : Checkout repository
19+ uses : actions/checkout@v4
20+ with :
21+ fetch-depth : 2
22+
23+ - name : ChangeLog Entry Verifier and Milestone Setter
24+ run : |
25+ echo "################## STEP 1 ##################"
26+ echo "Get all labels from the PR"
27+ mapfile -t labels < <(gh pr view ${{ github.event.number }} --json labels -q '.labels[].name')
28+ IFS=','; echo "${labels[*]}"
29+ for label in "${labels[@]}"; do
30+ if [[ $label == ${{ env.SKIP_CHANGELOG_CHECK_LABEL }} ]]; then
31+ echo "Skipping github action workflow as label: ${SKIP_CHANGELOG_CHECK_LABEL} is found in the PR."
32+ exit 0
33+ fi
34+ done
35+ echo "${{ env.SKIP_CHANGELOG_CHECK_LABEL }} not found in the PR. Proceeding with next steps."
36+
37+ echo -e "\n"
38+ echo "################## STEP 2 ##################"
39+ echo "Checking for change log entry in ${{ env.CHANGE_LOG_FILE }}"
40+ git log --pretty=oneline | tail -n 2 | cat
41+ echo "merge base sha: ${{ github.event.pull_request.base.sha }}, merge head sha: ${{ github.event.pull_request.head.sha }}"
42+ if ! git diff ${{ github.event.pull_request.base.sha }} --name-only | grep -q "${{ env.CHANGE_LOG_FILE }}"; then
43+ echo "Change log file:${{ env.CHANGE_LOG_FILE }} does not contains an entry corresponding to changes introduced in PR. Please add a changelog entry."
44+ exit 0
45+ else
46+ echo "${{ env.CHANGE_LOG_FILE }} contains change log entry. Proceeding with next steps."
47+ fi
48+
49+
50+ echo -e "\n"
51+ echo "################## STEP 3 ##################"
52+ echo "Extracting Lucene version from change log entry"
53+ # git diff header pattern -> "@@ -15,0 +16,4 @@"
54+ # try to extract the line number at which new entry is added, here it's line number 16
55+ diff=$(git diff ${{ github.event.pull_request.base.sha }} --unified=0 -- ${{ env.CHANGE_LOG_FILE }})
56+ lucene_version=""
57+ diff_header_pattern="@@ -[0-9]+,?[0-9]* \+([0-9]*),?[0-9]* @@"
58+ if [[ $diff =~ $diff_header_pattern ]]; then
59+ echo "Match found: ${BASH_REMATCH[0]}"
60+ new_entry_line_number=$((BASH_REMATCH[1]))
61+ echo "Found introduced change log entry at line number:${new_entry_line_number}"
62+ lucene_version_regex="=+ ?Lucene ?([0-9.]*) ?=+"
63+ current_line_number=0
64+ while IFS="" read -r line; do
65+ current_line_number=$((current_line_number+1))
66+ if [[ $line =~ $lucene_version_regex ]]; then
67+ lucene_version="${BASH_REMATCH[1]}"
68+ fi
69+ if [[ $current_line_number -ge $new_entry_line_number ]]; then
70+ echo "Reached the line number at which new entry is added in ${{ env.CHANGE_LOG_FILE }}"
71+ break
72+ fi
73+ done < ${{ env.CHANGE_LOG_FILE }}
74+ if [[ -z $lucene_version ]]; then
75+ echo "Could not find Lucene version in the change log entry. Please add the Lucene version in the change log entry."
76+ exit 0
77+ fi
78+ echo "Found corresponding Lucene version: ${lucene_version} based on change log entry. Proceeding with next steps."
79+ else
80+ echo "Could not find the line number at which new entry is added in ${{ env.CHANGE_LOG_FILE }}"
81+ exit 0
82+ fi
83+
84+
85+ echo -e "\n"
86+ echo "################## STEP 4 ##################"
87+ echo "Adding/Updating milestone for the PR"
88+ mapfile -t milestones < <(gh repo view --json milestones -q '.milestones[].title')
89+ IFS=','; echo "${milestones[*]}"
90+ milestone_exists=false
91+ for milestone in "${milestones[@]}"; do
92+ if [[ $milestone == "$lucene_version" ]]; then
93+ milestone_exists=true
94+ break
95+ fi
96+ done
97+ if [[ $milestone_exists == false ]]; then
98+ echo "Milestone:${lucene_version} does not exist. Please create the milestone and run the workflow again."
99+ exit 0
100+ fi
101+ # Will uncomment this line after we ensure it runs perfectly in production.
102+ # gh pr edit ${{ github.event.number }} --milestone "${lucene_version}"
103+ echo "Adding/Updating milestone for the PR to:${lucene_version}"
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