include/gitlab: Add functions for interacting with merge requests

To implement a bot that merges merge requests by majority decision,
functions are necessary to get details about merge requests.
This commit adds functions that allow the user to get the number of
members in a project, get details about the votes that have been cast
on a merge requests, add comments to merge requests, and merge merge
requests.

diff --git a/include/gitlab.sh b/include/gitlab.sh
index a4cbb7dc8a4fd2a194ea6d34e85a5209475c6868..035d71c6b917825c241139aa90de96e06f1d34fb 100755 (executable)
--- a/include/gitlab.sh
+++ b/include/gitlab.sh
@@ -55,6 +55,18 @@ _gitlab_post() {
         return 0
 }
 
+_gitlab_put() {
+       local token="$1"
+       local url="$2"
+
+       if ! curl --silent --location -X PUT \
+                 --header "Private-Token: $token" "$url"; then
+               return 1
+       fi
+
+       return 0
+}
+
 gitlab_import_status() {
        local host
         local token
@@ -302,6 +314,30 @@ gitlab_project_get_branches() {
        return 0
 }
 
+gitlab_project_get_members() {
+       local host="$1"
+       local token="$2"
+       local project="$3"
+
+       local project_id
+       local url
+       local resp
+
+       if ! project_id=$(gitlab_get_project_id "$host"  \
+                                               "$token" \
+                                               "$project"); then
+               return 1
+       fi
+
+       url="$host/api/v4/projects/$project_id/members/all"
+       if ! resp=$(_gitlab_get "$token" "$url"); then
+               return 1
+       fi
+
+       echo "$resp"
+       return 0
+}
+
 gitlab_project_get_merge_requests() {
        local host="$1"
        local token="$2"
@@ -321,6 +357,54 @@ gitlab_project_get_merge_requests() {
        return 0
 }
 
+gitlab_project_mergerequest_get_votes() {
+       local host="$1"
+       local token="$2"
+       local project="$3"
+       local mergerequest="$4"
+
+       local project_id
+       local url
+       local resp
+
+       if ! project_id=$(gitlab_get_project_id "$host" "$token" "$project"); then
+               return 1
+       fi
+
+       url="$host/api/v4/projects/$project_id/merge_requests/$mergerequest/award_emoji"
+       if ! resp=$(_gitlab_get "$token" "$url"); then
+               return 1
+       fi
+
+       echo "$resp"
+       return 0
+}
+
+gitlab_project_mergerequest_comment() {
+       local host="$1"
+       local token="$2"
+       local project="$3"
+       local mergerequest="$4"
+       local comment="$5"
+
+       local project_id
+       local url
+       local data
+
+       if ! project_id=$(gitlab_get_project_id "$host" "$token" "$project"); then
+               return 1
+       fi
+
+       url="$host/api/v4/projects/$project_id/merge_requests/$mergerequest/notes"
+       data=$(json_object "body" "$comment")
+
+       if ! resp=$(_gitlab_post "$token" "$url" "$data"); then
+               return 1
+       fi
+
+       return 0
+}
+
 gitlab_list_merge_requests() {
        local host="$1"
        local token="$2"
@@ -343,6 +427,32 @@ gitlab_list_merge_requests() {
        return 0
 }
 
+gitlab_project_merge_merge_request() {
+       local host="$1"
+       local token="$2"
+       local project="$3"
+       local mergerequest="$4"
+
+       local project_id
+       local url
+       local resp
+
+       if [[ "$project" =~ ^[0-9]+$ ]]; then
+               project_id="$project"
+       elif ! project_id=$(gitlab_get_project_id "$host" "$token" "$project"); then
+               return 1
+       fi
+
+       url="$host/api/v4/projects/$project_id/merge_requests/$mergerequest/merge"
+
+       if ! resp=$(_gitlab_put "$token" "$url"); then
+               return 1
+       fi
+
+       echo "$resp"
+       return 0
+}
+
 gitlab_get_project_id() {
        local host
        local token