@@ -36,7 +36,7 @@ set -o pipefail
3636# VARIABLES #
3737
3838# Get the pull request number:
39- pr_number=" $1 "
39+ pr_number=" ${1} "
4040
4141# GitHub API base URL:
4242GITHUB_API_URL=" https://api.github.com"
@@ -56,93 +56,105 @@ COMMENT_IDENTIFIER="<!-- PR_COMMIT_MESSAGE -->"
5656# FUNCTIONS #
5757
5858# Error handler.
59+ #
60+ # $1 - error message
5961on_error () {
60- echo " ERROR: $1 " >&2
61- exit $ERROR
62+ echo " ERROR: ${1} " >&2
63+ exit ${ ERROR}
6264}
6365
6466# Makes GitHub API requests.
67+ #
68+ # $1 - HTTP method
69+ # $2 - API endpoint
70+ # $3 - request data (optional)
6571github_api () {
66- local method=" $1 "
67- local endpoint=" $2 "
68- local data=" $3 "
69-
70- # Initialize an array to hold curl headers:
71- local headers=()
72-
73- # If GITHUB_TOKEN is set, add the Authorization header:
74- if [ -n " $GITHUB_TOKEN " ; then
75- headers+=(" -H" " Authorization: token $GITHUB_TOKEN "
76- fi
77-
78- # Determine the HTTP method and construct the curl command accordingly:
79- case " $method " in
80- GET)
81- curl -s " ${headers[@]} " " $GITHUB_API_URL$ endpoint "
82- ;;
83- POST)
84- # For POST requests, always set the Content-Type header:
85- headers+=(" -H" " Content-Type: application/json"
86-
87- # If data is provided, include it in the request:
88- if [ -n " $data " ; then
89- curl -s -X POST " ${headers[@]} " " $data " " $GITHUB_API_URL$ endpoint "
90- else
91- # Handle cases where POST data is required but not provided:
92- echo " POST request requires data."
93- on_error " POST request requires data"
94- fi
95- ;;
96- * )
97- on_error " Invalid HTTP method: $method "
98- ;;
99- esac
72+ local method=" ${1} "
73+ local endpoint=" ${2} "
74+ local data=" ${3} "
75+
76+ # Initialize an array to hold curl headers:
77+ local headers=()
78+
79+ # If GITHUB_TOKEN is set, add the Authorization header:
80+ if [ -n " ${ GITHUB_TOKEN} " ; then
81+ headers+=(" -H" " Authorization: token ${ GITHUB_TOKEN} "
82+ fi
83+
84+ # Determine the HTTP method and construct the curl command accordingly:
85+ case " ${ method} " in
86+ GET)
87+ curl -s " ${headers[@]} " " ${ GITHUB_API_URL}${ endpoint} "
88+ ;;
89+ POST)
90+ # For POST requests, always set the Content-Type header:
91+ headers+=(" -H" " Content-Type: application/json"
92+
93+ # If data is provided, include it in the request:
94+ if [ -n " ${ data} " ; then
95+ curl -s -X POST " ${headers[@]} " " ${ data} " " ${ GITHUB_API_URL}${ endpoint} "
96+ else
97+ # Handle cases where POST data is required but not provided:
98+ echo " POST request requires data."
99+ on_error " POST request requires data"
100+ fi
101+ ;;
102+ * )
103+ on_error " Invalid HTTP method: ${ method} "
104+ ;;
105+ esac
100106}
101107
102108# Main execution sequence.
103109main () {
104- # Check if PR number is provided:
105- if [ -z " $pr_number " ; then
106- on_error " PR number is required"
107- fi
108-
109- # Fetch PR comments to look for commit message comment:
110- comments=$( github_api " GET" " /repos/$REPO_OWNER /$REPO_NAME /issues/$pr_number /comments" )
111-
112- # Look for the PR commit message comment with the identifier:
113- commit_message_comment=$( echo " $comments " | jq -r --arg id " $COMMENT_IDENTIFIER " ' .[] | select(.body | contains($id)) | .body' )
114-
115- if [ -z " $commit_message_comment " ; then
116- on_error " No PR commit message comment found for PR #$pr_number "
117- fi
118-
119- # Extract commit message from the Markdown code block in the comment:
120- commit_message=$( echo " $commit_message_comment " | awk ' /```text/{flag=1;next}/```/{flag=0}flag' )
121-
122- if [ -z " $commit_message " ; then
123- on_error " Couldn't extract commit message from PR comment"
124- fi
125-
126- # Extract subject (first line) and body (everything after the first line):
127- commit_subject=$( echo " $commit_message " | head -n 1)
128- commit_body=$( echo " $commit_message " | tail -n +2)
129- commit_body=$( echo " $commit_body " | awk ' NF {p=1} p' ) # Trim leading empty lines
130-
131- if [ -z " $commit_subject " ; then
132- on_error " Couldn't extract commit subject from PR commit message"
133- fi
134- if [ -z " $commit_body " ; then
135- on_error " Couldn't extract commit body from PR commit message"
136- fi
137-
138- # Squash and merge the PR with the extracted subject and body:
139- if ! gh pr merge " $pr_number " " $commit_subject " " $commit_body " ; then
140- on_error " Failed to merge PR #$pr_number "
141- fi
142-
143- echo " Successfully merged PR #$pr_number "
144- exit $SUCCESS
110+ local commit_message_comment
111+ local commit_message
112+ local commit_subject
113+ local commit_body
114+ local comments
115+
116+ # Check if PR number is provided:
117+ if [ -z " ${pr_number} " ; then
118+ on_error " PR number is required"
119+ fi
120+
121+ # Fetch PR comments to look for commit message comment:
122+ comments=$( github_api " GET" " /repos/${REPO_OWNER} /${REPO_NAME} /issues/${pr_number} /comments" )
123+
124+ # Look for the PR commit message comment with the identifier:
125+ commit_message_comment=$( echo " ${comments} " | jq -r --arg id " ${COMMENT_IDENTIFIER} " ' .[] | select(.body | contains($id)) | .body' )
126+
127+ if [ -z " ${commit_message_comment} " ; then
128+ on_error " No PR commit message comment found for PR #${pr_number} "
129+ fi
130+
131+ # Extract commit message from the Markdown code block in the comment:
132+ commit_message=$( echo " ${commit_message_comment} " | awk ' /```text/{flag=1;next}/```/{flag=0}flag' )
133+
134+ if [ -z " ${commit_message} " ; then
135+ on_error " Couldn't extract commit message from PR comment"
136+ fi
137+
138+ # Extract subject (first line) and body (everything after the first line):
139+ commit_subject=$( echo " ${commit_message} " | head -n 1)
140+ commit_body=$( echo " ${commit_message} " | tail -n +2)
141+ commit_body=$( echo " ${commit_body} " | awk ' NF {p=1} p' ) # Trim leading empty lines
142+
143+ if [ -z " ${commit_subject} " ; then
144+ on_error " Couldn't extract commit subject from PR commit message"
145+ fi
146+ if [ -z " ${commit_body} " ; then
147+ on_error " Couldn't extract commit body from PR commit message"
148+ fi
149+
150+ # Squash and merge the PR with the extracted subject and body:
151+ if ! gh pr merge " ${pr_number} " " ${commit_subject} " " ${commit_body} " ; then
152+ on_error " Failed to merge PR #${pr_number} "
153+ fi
154+
155+ echo " Successfully merged PR #${pr_number} "
156+ exit ${SUCCESS}
145157}
146158
147159# Call main with all command-line arguments:
148- main " $@ "
160+ main " ${ @ } "
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