Merge pull request #131 from stefanzweifel/git-fetch-depth

Set --depth on git-fetch and make call to git-fetch optional

README.md

@@ -64,7 +64,10 @@ This is a more extended example with all possible options.
     push_options: '--force'
 
     # Optional: Disable dirty check and always try to create a commit and push
-    skip_dirty_check: true
+    skip_dirty_check: true    
+
+    # Optional: Skip internal call to `git fetch`
+    skip_fetch: true
 ```
 
 ## Example

action.yml

@@ -48,6 +48,10 @@ inputs:
     description: Skip the check if the git repository is dirty and always try to create a commit.
     required: false
     default: false
+  skip_fetch:
+    description: Skip the call to git-fetch.
+    required: false
+    default: false
 
 outputs:
   changes_detected:

entrypoint.sh

@@ -41,7 +41,12 @@ _switch_to_branch() {
     echo "INPUT_BRANCH value: $INPUT_BRANCH";
 
     # Fetch remote to make sure that repo can be switched to the right branch.
-    git fetch;
+
+    if "$INPUT_SKIP_FETCH"; then
+        echo "::debug::git-fetch has not been executed";
+    else
+        git fetch --depth=1;
+    fi
 
     # Switch to branch from current Workflow run
     # shellcheck disable=SC2086

tests/git-auto-commit.bats

@@ -21,6 +21,7 @@ setup() {
     export INPUT_TAGGING_MESSAGE=""
     export INPUT_PUSH_OPTIONS=""
     export INPUT_SKIP_DIRTY_CHECK=false
+    export INPUT_SKIP_FETCH=false
 
     # Configure Git
     if [[ -z $(git config user.name) ]]; then
@@ -297,3 +298,16 @@ git_auto_commit() {
     run git ls-remote --tags --refs
     assert_output --partial refs/tags/v2.0.0
 }
+
+@test "If SKIP_FETCH is true git-fetch will not be called" {
+
+    touch "${FAKE_LOCAL_REPOSITORY}"/new-file-{1,2,3}.txt
+
+    INPUT_SKIP_FETCH=true
+
+    run git_auto_commit
+
+    assert_success
+
+    assert_line "::debug::git-fetch has not been executed"
+}