From a7dbebef76d3b9e2593d6f2868605517609585f4 Mon Sep 17 00:00:00 2001
From: Matthieu Bernardin <mbernard@redhat.com>
Date: Mon, 29 Jul 2024 17:15:32 +0200
Subject: [PATCH] feat(task): Add capability to the slack task to dump file
 content and submodule git log

---
 task/slack-webhook-notification/0.1/README.md |   3 +-
 .../0.1/slack-webhook-notification.yaml       | 123 +++++++++++++++++-
 2 files changed, 123 insertions(+), 3 deletions(-)

diff --git a/task/slack-webhook-notification/0.1/README.md b/task/slack-webhook-notification/0.1/README.md
index 0aefc20ce9..779ee2a03a 100644
--- a/task/slack-webhook-notification/0.1/README.md
+++ b/task/slack-webhook-notification/0.1/README.md
@@ -8,4 +8,5 @@ Sends message to slack using incoming webhook
 |message|Message to be sent||true|
 |secret-name|Secret with least one key where value is webhook URL for slack. eg. oc create secret generic my-secret --from-literal team1=https://hooks.slack.com/services/XXX/XXXXXX --from-literal team2=https://hooks.slack.com/services/YYY/YYYYYY |slack-webhook-notification-secret|false|
 |key-name|Key in the key in secret which contains webhook URL for slack.||true|
-
+|files|List of file to dump. The content will be added to the message.|[]|false|
+|submodules|List of submodules name to dump. Git log since previous submodule commit will be added to the message.|[]|false|
diff --git a/task/slack-webhook-notification/0.1/slack-webhook-notification.yaml b/task/slack-webhook-notification/0.1/slack-webhook-notification.yaml
index 7abe41bc55..34dded50ef 100644
--- a/task/slack-webhook-notification/0.1/slack-webhook-notification.yaml
+++ b/task/slack-webhook-notification/0.1/slack-webhook-notification.yaml
@@ -20,6 +20,14 @@ spec:
       default: slack-webhook-notification-secret
     - name: key-name
       description: Key in the key in secret which contains webhook URL for slack.
+    - name: submodules
+      type: array
+      description: List of submodules name to dump. Git log since previous submodule commit will be added to the message.
+      default: []
+    - name: files
+      type: array
+      description: List of file to dump. The content will be added to the message.
+      default: []
   volumes:
     - name: webhook-secret
       secret:
@@ -27,7 +35,7 @@ spec:
         optional: true
   steps:
     - name: send-message
-      image: registry.access.redhat.com/ubi9/ubi-minimal:9.4-1194@sha256:73f7dcacb460dad137a58f24668470a5a2e47378838a0190eef0ab532c6e8998
+      image: registry.access.redhat.com/ubi9/toolbox@sha256:131d7386c8f3520cab8d6359884f8f45bf2d0acab0f2e1a9a531d37cf0a3f324
       # per https://kubernetes.io/docs/concepts/containers/images/#imagepullpolicy-defaulting
       # the cluster will set imagePullPolicy to IfNotPresent
       volumeMounts:
@@ -43,10 +51,121 @@ spec:
           value: $(params.message)
       script: |
         #!/usr/bin/env bash
+
+        # ##########
+        #  HELPERS  
+        # ##########
+        function escapeDoubleQuote { echo "${1//\"/\\\"}"; }
+
+        # ##########
+        #  DUMPERS  
+        # ##########
+        function dumpSeparator {
+          echo "-----------------------------------------"
+        }
+
+        function dumpFile {
+          filePath=$1
+
+          read -r -d '' ret << EOM
+        *${filePath}:*
+        \`\`\`
+        $(cat "${filePath}")
+        \`\`\`
+        EOM
+          
+          echo "${ret}"
+        }
+
+        function dumpSubmodule {
+          name=$1
+
+          path=$(git config -f .gitmodules --get submodule."${name}".path)
+          url=$(git config -f .gitmodules --get submodule."${name}".url)
+
+          current_commit=$(git -C "${path}" rev-parse HEAD)
+          previous_commit=$(git diff HEAD~1 "${path}" | grep commit | head -n 1 | awk '{print $3;}')
+          if [ "${previous_commit}" = "" ]; then
+            previous_commit=${current_commit}
+          fi
+
+          commits=None
+          if [ "${previous_commit}" != "${current_commit}" ]; then
+            commits=$(git -C "${path}" log --pretty=format:'%h %<(27,trunc)%an %s' --abbrev-commit "${previous_commit}".."${current_commit}")
+          fi
+
+          read -r -d '' ret << EOM
+        *Submodule ${name} (<${url}/commits/${current_commit}|commits>):*
+        \`\`\`
+        ${commits}
+        \`\`\`
+        EOM
+          
+          echo "${ret}"
+        }
+
+        # ###############
+        #  ARGS PARSING 
+        # ###############
+        FILES=""
+        SUBMODULES=""
+
+        while [[ $# -gt 0 ]]; do
+          case $1 in
+          --files)
+            shift
+            while [[ $# -gt 0 ]] && ! [[ "$1" =~ --.* ]]; do
+              FILES+=" $1"
+              shift
+            done
+            ;;
+          --submodules)
+            shift
+            while [[ $# -gt 0 ]] && ! [[ "$1" =~ --.* ]]; do
+              SUBMODULES+=" $1"
+              shift
+            done
+            ;;
+          esac
+        done
+
+        # ####################
+        #  PARAMS VALIDATION 
+        # ####################
         if [ -f "/etc/secrets/$KEY_NAME" ]; then
           WEBHOOK_URL=$(cat "/etc/secrets/$KEY_NAME")
         else
           echo "Secret not defined properly"
           exit 1
         fi
-        curl -X POST -H 'Content-type: application/json' --data "{\"text\":\"$MESSAGE\"}" $WEBHOOK_URL
+
+        # #######
+        #  DUMP  
+        # #######
+        slack_message=${MESSAGE}
+
+        if [ "$FILES" != "" ]; then
+          slack_message+="\n$(dumpSeparator)"
+        fi
+        
+        for file in ${FILES}; do
+          content=$(dumpFile "${file}")
+          slack_message+="\n${content}"
+        done
+
+        if [ "$SUBMODULES" != "" ]; then
+          slack_message+="\n$(dumpSeparator)"
+        fi
+        
+        for submodule in ${SUBMODULES}; do
+          content=$(dumpSubmodule "${submodule}")
+          slack_message+="\n${content}"
+        done
+
+        escaped_slack_message=$(escapeDoubleQuote "${slack_message}")
+
+        curl -X POST -H 'Content-type: application/json' --data "{\"text\":\"${escaped_slack_message}\"}" "$WEBHOOK_URL"
+      workingDir: $(workspaces.source.path)/source
+  workspaces:
+    - name: source
+      description: Workspace containing the source code to build.