From c920368fb2485e0dde8cd9956adb2cf9fa230da0 Mon Sep 17 00:00:00 2001
From: Maksym Vlasov <MaxymVlasov@users.noreply.github.com>
Date: Fri, 10 Sep 2021 22:33:03 +0300
Subject: [PATCH] feat: Add mixed line ending check to prevent possible errors
 (#221)

---
 .pre-commit-config.yaml |  2 ++
 Dockerfile              | 16 ++++++++--------
 README.md               | 24 +++++++++++-------------
 3 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 354e538dc..020f65f4c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -19,6 +19,8 @@ repos:
 
     # Cross platform
     - id: check-case-conflict
+    - id: mixed-line-ending
+      args: [--fix=lf]
 
     # Security
     - id: detect-aws-credentials
diff --git a/Dockerfile b/Dockerfile
index 239994448..5fa7552ac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -76,9 +76,9 @@ RUN . /.env && \
     if [ "$TERRAFORM_DOCS_VERSION" != "false" ]; then \
     ( \
         TERRAFORM_DOCS_RELEASES="https://api.github.com/repos/terraform-docs/terraform-docs/releases" && \
-        [ "$TERRAFORM_DOCS_VERSION" = "latest" ] && curl -L "$(curl -s ${TERRAFORM_DOCS_RELEASES}/latest | grep -o -E "https://.+?-linux-amd64.tar.gz")" > terraform-docs.tgz \
+        [ "$TERRAFORM_DOCS_VERSION" = "latest" ] && curl -L "$(curl -s ${TERRAFORM_DOCS_RELEASES}/latest | grep -o -E -m 1 "https://.+?-linux-amd64.tar.gz")" > terraform-docs.tgz \
         || curl -L "$(curl -s ${TERRAFORM_DOCS_RELEASES} | grep -o -E "https://.+?v${TERRAFORM_DOCS_VERSION}-linux-amd64.tar.gz")" > terraform-docs.tgz \
-    ) && tar -xzf terraform-docs.tgz terraform-docs && chmod +x terraform-docs \
+    ) && tar -xzf terraform-docs.tgz terraform-docs && rm terraform-docs.tgz && chmod +x terraform-docs \
     ; fi
 
 # Terragrunt
@@ -86,8 +86,8 @@ RUN . /.env \
     && if [ "$TERRAGRUNT_VERSION" != "false" ]; then \
     ( \
         TERRAGRUNT_RELEASES="https://api.github.com/repos/gruntwork-io/terragrunt/releases" && \
-        [ "$TERRAGRUNT_VERSION" = "latest" ] && curl -L "$(curl -s ${TERRAGRUNT_RELEASES}/latest | grep -o -E "https://.+?/terragrunt_linux_amd64" | head -n 1)" > terragrunt \
-        || curl -L "$(curl -s ${TERRAGRUNT_RELEASES} | grep -o -E "https://.+?v${TERRAGRUNT_VERSION}/terragrunt_linux_amd64" | head -n 1)" > terragrunt \
+        [ "$TERRAGRUNT_VERSION" = "latest" ] && curl -L "$(curl -s ${TERRAGRUNT_RELEASES}/latest | grep -o -E -m 1 "https://.+?/terragrunt_linux_amd64")" > terragrunt \
+        || curl -L "$(curl -s ${TERRAGRUNT_RELEASES} | grep -o -E -m 1 "https://.+?v${TERRAGRUNT_VERSION}/terragrunt_linux_amd64")" > terragrunt \
     ) && chmod +x terragrunt \
     ; fi
 
@@ -97,7 +97,7 @@ RUN . /.env && \
     if [ "$TERRASCAN_VERSION" != "false" ]; then \
     ( \
         TERRASCAN_RELEASES="https://api.github.com/repos/accurics/terrascan/releases" && \
-        [ "$TERRASCAN_VERSION" = "latest" ] && curl -L "$(curl -s ${TERRASCAN_RELEASES}/latest | grep -o -E "https://.+?_Linux_x86_64.tar.gz")" > terrascan.tar.gz \
+        [ "$TERRASCAN_VERSION" = "latest" ] && curl -L "$(curl -s ${TERRASCAN_RELEASES}/latest | grep -o -E -m 1 "https://.+?_Linux_x86_64.tar.gz")" > terrascan.tar.gz \
         || curl -L "$(curl -s ${TERRASCAN_RELEASES} | grep -o -E "https://.+?${TERRASCAN_VERSION}_Linux_x86_64.tar.gz")" > terrascan.tar.gz \
     ) && tar -xzf terrascan.tar.gz terrascan && rm terrascan.tar.gz && \
     ./terrascan init \
@@ -108,7 +108,7 @@ RUN . /.env && \
     if [ "$TFLINT_VERSION" != "false" ]; then \
     ( \
         TFLINT_RELEASES="https://api.github.com/repos/terraform-linters/tflint/releases" && \
-        [ "$TFLINT_VERSION" = "latest" ] && curl -L "$(curl -s ${TFLINT_RELEASES}/latest | grep -o -E "https://.+?_linux_amd64.zip")" > tflint.zip \
+        [ "$TFLINT_VERSION" = "latest" ] && curl -L "$(curl -s ${TFLINT_RELEASES}/latest | grep -o -E -m 1 "https://.+?_linux_amd64.zip")" > tflint.zip \
         || curl -L "$(curl -s ${TFLINT_RELEASES} | grep -o -E "https://.+?/v${TFLINT_VERSION}/tflint_linux_amd64.zip")" > tflint.zip \
     ) && unzip tflint.zip && rm tflint.zip \
     ; fi
@@ -118,8 +118,8 @@ RUN . /.env && \
     if [ "$TFSEC_VERSION" != "false" ]; then \
     ( \
         TFSEC_RELEASES="https://api.github.com/repos/aquasecurity/tfsec/releases" && \
-        [ "$TFSEC_VERSION" = "latest" ] && curl -L "$(curl -s ${TFSEC_RELEASES}/latest | grep -o -E "https://.+?/tfsec-linux-amd64" | head -n 1)" > tfsec \
-        || curl -L "$(curl -s ${TFSEC_RELEASES} | grep -o -E "https://.+?v${TFSEC_VERSION}/tfsec-linux-amd64" | head -n 1)" > tfsec \
+        [ "$TFSEC_VERSION" = "latest" ] && curl -L "$(curl -s ${TFSEC_RELEASES}/latest | grep -o -E -m 1 "https://.+?/tfsec-linux-amd64")" > tfsec \
+        || curl -L "$(curl -s ${TFSEC_RELEASES} | grep -o -E -m 1 "https://.+?v${TFSEC_VERSION}/tfsec-linux-amd64")" > tfsec \
     ) && chmod +x tfsec \
     ; fi
 
diff --git a/README.md b/README.md
index 19901f3d9..aeeb9668c 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ To disable pre-commit color output set `-e PRE_COMMIT_COLOR=never`.
 [`coreutils`](https://formulae.brew.sh/formula/coreutils) required for `terraform_validate` hook on macOS (due to use of `realpath`).
 
 ```bash
-brew install pre-commit gawk terraform-docs tflint tfsec coreutils checkov terrascan
+brew install pre-commit terraform-docs tflint tfsec coreutils checkov terrascan
 terrascan init
 ```
 
@@ -88,17 +88,16 @@ terrascan init
 
 ```bash
 sudo apt update
-sudo apt install -y gawk unzip software-properties-common
+sudo apt install -y unzip software-properties-common
 sudo add-apt-repository ppa:deadsnakes/ppa
 sudo apt install -y python3.7 python3-pip
 python3 -m pip install --upgrade pip
 pip3 install --no-cache-dir pre-commit
 python3.7 -m pip install -U checkov
-curl -L "$(curl -s https://api.github.com/repos/terraform-docs/terraform-docs/releases/latest | grep -o -E "https://.+?-linux-amd64.tar.gz")" > terraform-docs.tgz && tar xzf terraform-docs.tgz && chmod +x terraform-docs && sudo mv terraform-docs /usr/bin/
-curl -L "$(curl -s https://api.github.com/repos/terraform-linters/tflint/releases/latest | grep -o -E "https://.+?_linux_amd64.zip")" > tflint.zip && unzip tflint.zip && rm tflint.zip && sudo mv tflint /usr/bin/
-curl -L "$(curl -s https://api.github.com/repos/aquasecurity/tfsec/releases/latest | grep -o -E "https://.+?tfsec-linux-amd64" | head -n 1)" > tfsec && chmod +x tfsec && sudo mv tfsec /usr/bin/
-curl -L "$(curl -s https://api.github.com/repos/accurics/terrascan/releases/latest | grep -o -E "https://.+?_Linux_x86_64.tar.gz")" > terrascan.tar.gz && tar -xf terrascan.tar.gz terrascan && rm terrascan.tar.gz && sudo mv terrascan /usr/bin/
-terrascan init
+curl -L "$(curl -s https://api.github.com/repos/terraform-docs/terraform-docs/releases/latest | grep -o -E -m 1 "https://.+?-linux-amd64.tar.gz")" > terraform-docs.tgz && tar -xzf terraform-docs.tgz && rm terraform-docs.tgz && chmod +x terraform-docs && sudo mv terraform-docs /usr/bin/
+curl -L "$(curl -s https://api.github.com/repos/terraform-linters/tflint/releases/latest | grep -o -E -m 1 "https://.+?_linux_amd64.zip")" > tflint.zip && unzip tflint.zip && rm tflint.zip && sudo mv tflint /usr/bin/
+curl -L "$(curl -s https://api.github.com/repos/aquasecurity/tfsec/releases/latest | grep -o -E -m 1 "https://.+?tfsec-linux-amd64")" > tfsec && chmod +x tfsec && sudo mv tfsec /usr/bin/
+curl -L "$(curl -s https://api.github.com/repos/accurics/terrascan/releases/latest | grep -o -E -m 1"https://.+?_Linux_x86_64.tar.gz")" > terrascan.tar.gz && tar -xzf terrascan.tar.gz terrascan && rm terrascan.tar.gz && sudo mv terrascan /usr/bin/ && terrascan init
 ```
 
 </details>
@@ -108,15 +107,14 @@ terrascan init
 
 ```bash
 sudo apt update
-sudo apt install -y gawk unzip software-properties-common python3 python3-pip
+sudo apt install -y unzip software-properties-common python3 python3-pip
 python3 -m pip install --upgrade pip
 pip3 install --no-cache-dir pre-commit
 pip3 install --no-cache-dir checkov
-curl -L "$(curl -s https://api.github.com/repos/terraform-docs/terraform-docs/releases/latest | grep -o -E "https://.+?-linux-amd64.tar.gz")" > terraform-docs.tgz && tar -xzf terraform-docs.tgz terraform-docs && chmod +x terraform-docs && sudo mv terraform-docs /usr/bin/
-curl -L "$(curl -s https://api.github.com/repos/accurics/terrascan/releases/latest | grep -o -E "https://.+?_Linux_x86_64.tar.gz")" > terrascan.tar.gz && tar -xf terrascan.tar.gz terrascan && rm terrascan.tar.gz && sudo mv terrascan /usr/bin/
-terrascan init
-curl -L "$(curl -s https://api.github.com/repos/terraform-linters/tflint/releases/latest | grep -o -E "https://.+?_linux_amd64.zip")" > tflint.zip && unzip tflint.zip && rm tflint.zip && sudo mv tflint /usr/bin/
-curl -L "$(curl -s https://api.github.com/repos/aquasecurity/tfsec/releases/latest | grep -o -E "https://.+?tfsec-linux-amd64" | head -n 1)" > tfsec && chmod +x tfsec && sudo mv tfsec /usr/bin/
+curl -L "$(curl -s https://api.github.com/repos/terraform-docs/terraform-docs/releases/latest | grep -o -E -m 1 "https://.+?-linux-amd64.tar.gz")" > terraform-docs.tgz && tar -xzf terraform-docs.tgz terraform-docs && rm terraform-docs.tgz && chmod +x terraform-docs && sudo mv terraform-docs /usr/bin/
+curl -L "$(curl -s https://api.github.com/repos/accurics/terrascan/releases/latest | grep -o -E -m 1"https://.+?_Linux_x86_64.tar.gz")" > terrascan.tar.gz && tar -xzf terrascan.tar.gz terrascan && rm terrascan.tar.gz && sudo mv terrascan /usr/bin/ && terrascan init
+curl -L "$(curl -s https://api.github.com/repos/terraform-linters/tflint/releases/latest | grep -o -E -m 1 "https://.+?_linux_amd64.zip")" > tflint.zip && unzip tflint.zip && rm tflint.zip && sudo mv tflint /usr/bin/
+curl -L "$(curl -s https://api.github.com/repos/aquasecurity/tfsec/releases/latest | grep -o -E -m 1 "https://.+?tfsec-linux-amd64")" > tfsec && chmod +x tfsec && sudo mv tfsec /usr/bin/
 ```
 
 </details>