From 4bedfc30b73f8459b571f9329fb88a74eb5cee4e Mon Sep 17 00:00:00 2001
From: Leandro Costa <contato@leandrocosta.pro.br>
Date: Thu, 16 Oct 2025 08:50:47 -0300
Subject: [PATCH] feat: input context

---
 .vscode/settings.json |  2 +-
 README.md             | 23 ++++++++++++++++++++---
 action.yml            | 31 ++++++++++++++++++++++++++-----
 3 files changed, 47 insertions(+), 9 deletions(-)

diff --git a/.vscode/settings.json b/.vscode/settings.json
index c60674c..1e4dccc 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,3 @@
 {
-  "cSpell.words": ["elif", "kaniko"]
+  "cSpell.words": ["elif", "esac", "kaniko"]
 }
diff --git a/README.md b/README.md
index c3a7b04..176dc2d 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Build OCI images using Kaniko.
 
 ### Example: Basic Usage, all options.
 
-```yaml
+````yaml
 jobs:
   cowsay:
     runs-on: docker
@@ -20,7 +20,24 @@ jobs:
           registry: docker.example.org
           username: ${{ secrets.REGISTRY_USERNAME }}
           password: ${{ secrets.REGISTRY_PASSWORD }}
-```
+
+### Example: Custom build context
+
+```yaml
+jobs:
+  build:
+    runs-on: docker
+    steps:
+      - uses: actions/checkout@v4
+      - uses: https://github.com/leandro-costa-oliveira/forgejo-kaniko-action@v3
+        with:
+          context: ./subdir
+          image: my-user/test-image:latest
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+````
+
+````
 
 ### Example: Multiple Tags, Default registry
 
@@ -34,7 +51,7 @@ jobs:
           image: my-user/test-image:latest,my-user/test-image:${{ github.sha }}
           username: ${{ secrets.REGISTRY_USERNAME }}
           password: ${{ secrets.REGISTRY_PASSWORD }}
-```
+````
 
 ### Credits
 
diff --git a/action.yml b/action.yml
index 6856f9f..880b52e 100644
--- a/action.yml
+++ b/action.yml
@@ -8,6 +8,9 @@ inputs:
   dockerfile:
     description: The Dockerfile to pass to Kaniko
     required: false
+  context:
+    description: Build context directory (absolute or relative to GITHUB_WORKSPACE)
+    required: false
   image:
     description: Name and tag under which to upload the image
     required: true
@@ -31,13 +34,31 @@ runs:
       mkdir -p /kaniko/.docker
       echo '{"auths":{"${{ inputs.registry }}":{"auth":"'$(printf "%s:%s" "${{ inputs.username }}" "${{ inputs.password }}" | base64 | tr -d '\n')'"}}}' > /kaniko/.docker/config.json
 
+      # Resolve build context
+      if [ -n "${{ inputs.context }}" ]; then
+        case "${{ inputs.context }}" in
+          /*)
+            CONTEXT="${{ inputs.context }}"
+            ;;
+          *)
+            CONTEXT="$GITHUB_WORKSPACE/${{ inputs.context }}"
+            ;;
+        esac
+      else
+        CONTEXT="$GITHUB_WORKSPACE"
+      fi
+
+      echo "Using context: $CONTEXT"
+
+      # Ensure Dockerfile exists within the resolved context
       if [ -n "${{ inputs.dockerfile }}" ]; then
         echo "Using Dockerfile from input"
-        echo "${{ inputs.dockerfile }}" > Dockerfile
-      elif [ -f "./Dockerfile" ]; then
-        echo "Using existing ./Dockerfile from workspace"
+        mkdir -p "$CONTEXT"
+        echo "${{ inputs.dockerfile }}" > "$CONTEXT/Dockerfile"
+      elif [ -f "$CONTEXT/Dockerfile" ]; then
+        echo "Using existing Dockerfile at $CONTEXT/Dockerfile"
       else
-        echo "ERROR: No Dockerfile provided and no ./Dockerfile found in workspace"
+        echo "ERROR: No Dockerfile provided and no Dockerfile found at $CONTEXT/Dockerfile"
         exit 1
       fi
 
@@ -48,4 +69,4 @@ runs:
 
       echo "Destinations: $dest_flags"
 
-      /kaniko/executor --dockerfile Dockerfile --context $GITHUB_WORKSPACE $dest_flags
+      /kaniko/executor --dockerfile Dockerfile --context "$CONTEXT" $dest_flags