From 8d7437a34b402fc8f7623d27a977e8960012e65e Mon Sep 17 00:00:00 2001
From: Vladimir Komissarov <v.komissarov@zarplata.ru>
Date: Wed, 30 Jan 2019 17:53:52 +0700
Subject: [PATCH] add ability to push sources

---
 README.md  | 18 ++++++++++------
 assets/out | 61 +++++++++++++++++++++++++++++++++++++++++++++++++-----
 2 files changed, 68 insertions(+), 11 deletions(-)

diff --git a/README.md b/README.md
index c516553..3ee26db 100644
--- a/README.md
+++ b/README.md
@@ -96,15 +96,21 @@ commit on the branch.
 All `params` and `source` configuration of the original resource will be
 respected.
 
-### `out`: Update build task status.
+### `out`: Update the PR.
  
-This updates the build status of the pull request commit.
+Behavior depends on the value of parameter `action`, where is the values are:
 
-#### Parameters
+* `change-build-status`: Change the commit build status.
 
-* Parameters except the `name` will be respected the [Bitbucket documentation](https://developer.atlassian.com/server/bitbucket/how-tos/updating-build-status-for-commits/).
-* `name`: `Deprecated`. Parameter is deprecated and has been left only for backward compatibility.
-* `repository`: `Optional`. The path of the source repository for pushing or changing build status.
+    * `action`: `Required`. For this behavior should be `change-build-status`.
+    * Parameters except the `name` will be respected the [Bitbucket documentation](https://developer.atlassian.com/server/bitbucket/how-tos/updating-build-status-for-commits/).
+    * `name`: `Deprecated`. Parameter is deprecated and has been left only for backward compatibility.
+    * `repository`: `Optional`. The path of the source repository for changing build status.
+
+* `push`: Push the commit to pull request branch.
+
+    * `action`: `Required`. For this behavior should be `push`.
+    * `repository`: `Optional`. The path of the source repository for pushing.
 
 ## Troubleshooting
 
diff --git a/assets/out b/assets/out
index ae24f87..6bd506b 100755
--- a/assets/out
+++ b/assets/out
@@ -18,12 +18,12 @@ username=$(jq -r '.source.username // ""' < "${payload}")
 password=$(jq -r '.source.password // ""' < "${payload}")
 project=$(jq -r '.source.project // ""' < "${payload}")
 repository=$(jq -r '.source.repository // ""' < "${payload}")
-dir=$(jq -r '.params.repository // .source.dir // .source.repository // ""' < "${payload}")
+path=$(jq -r '.params.repository // .source.dir // .source.repository // ""' < "${payload}")
 params=$(jq -rc '.params' < "${payload}")
+action=$(jq -rc '.action // ""' <<< "${params}")
 
-cd "${dir}"
-
-pr=$(cat pull-request-info)
+path="$(realpath "${PWD}"/"${path}")/"
+pr=$(cat "${path}pull-request-info")
 
 eval_param() {
     eval echo "$(jq -r "${1}" <<< "${params}")"
@@ -79,4 +79,55 @@ change_build_status() {
     }' >&3
 }
 
-change_build_status
+push() {
+    git=$(jq -r '.source.git // ""' < "${payload}")
+
+    git_payload=$(jq -nc \
+        --argjson git "${git}" \
+        --argjson pr "${pr}" \
+        --arg repository "${path}" '
+        {
+            source: (
+                $git * {
+                    branch: $pr.feature_branch
+                }
+            ),
+            params: {
+                repository: $repository 
+            }
+        }
+    ')
+
+    git_payload_out=$(/opt/git-resource/out "${1}" <<< "${git_payload}")
+ 
+    jq -n --argjson pr "${pr}" --argjson git "${git_payload_out}" \
+        '{
+            version: {
+                id: $pr.id|tostring,
+                branch: $pr.feature_branch,
+                commit: $git.version.ref
+            },
+            metadata: $git.metadata
+        }' >&3
+}
+
+case "${action}" in
+    # case for backward compatibility
+    "")
+        echo "warning: please setup the \`action\` parameter"
+        change_build_status
+    ;;
+
+    "change-build-status")
+        change_build_status
+    ;;
+
+    "push")
+        push "${@%/}"
+    ;;
+
+    *)
+        echo "error: incorrect params.action (${action})"
+        exit 1
+    ;;
+esac