feat: Add __GIT_WORKING_DIR__ to terraform_checkov (antonbabenko#399)

README.md

@@ -310,6 +310,14 @@ For deprecated hook you need to specify each argument separately:
   ]
 ```
 
+2. When you have multiple directories and want to run `terraform_checkov` in all of them and share a single config file - use the `__GIT_WORKING_DIR__` placeholder. It will be replaced by `terraform_checkov` hooks with Git working directory (repo root) at run time. For example:
+
+    ```yaml
+    - id: terraform_checkov
+      args:
+        - --args=--config-file __GIT_WORKING_DIR__/.checkov.yml
+    ```
+
 ### infracost_breakdown
 
 `infracost_breakdown` executes `infracost breakdown` command and compare the estimated costs with those specified in the hook-config. `infracost breakdown` parses Terraform HCL code, and calls Infracost Cloud Pricing API (remote version or [self-hosted version](https://www.infracost.io/docs/cloud_pricing_api/self_hosted)).

hooks/terraform_checkov.sh

@@ -14,8 +14,11 @@ function main {
   common::initialize "$SCRIPT_DIR"
   common::parse_cmdline "$@"
   common::parse_and_export_env_vars
-  # shellcheck disable=SC2153 # False positive
-  common::per_dir_hook "${ARGS[*]}" "$HOOK_ID" "${FILES[@]}"
+  # Support for setting PATH to repo root.
+  # shellcheck disable=SC2178 # It's the simplest syntax for that case
+  ARGS=${ARGS[*]/__GIT_WORKING_DIR__/$(pwd)\/}
+  # shellcheck disable=SC2128 # It's the simplest syntax for that case
+  common::per_dir_hook "$ARGS" "$HOOK_ID" "${FILES[@]}"
 }
 
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