From 04769a174f026dca2dc4c40df5ef14b1f0650b30 Mon Sep 17 00:00:00 2001
From: Otthorn <otthorn@crans.org>
Date: Fri, 19 Feb 2021 01:02:25 +0100
Subject: [PATCH 1/8] Add ShellCheck linter

---
 .drone.yml | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 .drone.yml

diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000..cd7ffcc
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,10 @@
+---
+kind: pipeline
+type: docker
+name: lint
+
+steps:
+  - name: ShellCheck
+    image: koalaman/shellcheck-alpine:0.7.1
+    commands: shellcheck pdf-optimize
+...

From 3cce1bd1ac8b7d5ddbec61f47bfddf0449dbef74 Mon Sep 17 00:00:00 2001
From: Otthorn <otthorn@crans.org>
Date: Fri, 19 Feb 2021 01:04:21 +0100
Subject: [PATCH 2/8] Add linter badge

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 97e72f5..8f7754a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 # pdf-optimize
+[![Build Status](https://drone.auro.re/api/badges/otthorn/pdf-optimize/status.svg)](https://drone.auro.re/otthorn/pdf-optimize)
 
 pdf-optimize is a simple script to optimize pdf using ghostscript.
 You need to have ghoscript installed on your machine.

From 915ccd5a0a5da35a435bab0dafe3a26f54f26d7d Mon Sep 17 00:00:00 2001
From: Otthorn <otthorn@crans.org>
Date: Fri, 19 Feb 2021 01:06:02 +0100
Subject: [PATCH 3/8] fix drone

---
 .drone.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.drone.yml b/.drone.yml
index cd7ffcc..8f38e53 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -6,5 +6,6 @@ name: lint
 steps:
   - name: ShellCheck
     image: koalaman/shellcheck-alpine:0.7.1
-    commands: shellcheck pdf-optimize
+    commands:
+      - shellcheck pdf-optimize
 ...

From 8630959003553c46ad1eb1cfd6f418667b0598b4 Mon Sep 17 00:00:00 2001
From: Otthorn <otthorn@crans.org>
Date: Fri, 19 Feb 2021 01:07:31 +0100
Subject: [PATCH 4/8] Correct the version number

---
 .drone.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.drone.yml b/.drone.yml
index 8f38e53..797c3d2 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -5,7 +5,7 @@ name: lint
 
 steps:
   - name: ShellCheck
-    image: koalaman/shellcheck-alpine:0.7.1
+    image: koalaman/shellcheck-alpine:v0.7.1
     commands:
       - shellcheck pdf-optimize
 ...

From 9a33c847a0e81058530fa4f1c4b93c6c4de662cb Mon Sep 17 00:00:00 2001
From: Otthorn <otthorn@crans.org>
Date: Fri, 19 Feb 2021 01:10:45 +0100
Subject: [PATCH 5/8] [lint] FIX SC162: use read -r

---
 pdf-optimize | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pdf-optimize b/pdf-optimize
index d2bd9b5..ad9df3b 100755
--- a/pdf-optimize
+++ b/pdf-optimize
@@ -78,7 +78,7 @@ function arg_parse
 
 function yes_or_no
 {
-	read -p "$* [y/N]: " ans
+	read -pr "$* [y/N]: " ans
 	case "$ans" in
 		[yY] | [yY]es )     return 0;;
 		* )                 echo "Aborting"; return 1;;

From e6f5a587e472615a57fd7d8efeffee5aecfba4c0 Mon Sep 17 00:00:00 2001
From: Otthorn <otthorn@crans.org>
Date: Fri, 19 Feb 2021 01:11:48 +0100
Subject: [PATCH 6/8] [lint] FIX SC2006: use

---
 pdf-optimize | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/pdf-optimize b/pdf-optimize
index ad9df3b..0d72042 100755
--- a/pdf-optimize
+++ b/pdf-optimize
@@ -136,11 +136,11 @@ ${bold}$output_path${normal}."
 
 function compute_compression
 {
-	input_size=`du "$input_path" | cut -f1`
-	output_size=`du "$output_path" | cut -f1`
-	percentage=`echo "scale=1;$output_size / $input_size * 100" | bc -l`
-	input_size_h=`du -h "$input_path" | cut -f1`
-	output_size_h=`du -h "$output_path" | cut -f1`
+	input_size=$(du "$input_path" | cut -f1)
+	output_size=$(du "$output_path" | cut -f1)
+	percentage=$(echo "scale=1;$output_size / $input_size * 100" | bc -l)
+	input_size_h=$(du -h "$input_path" | cut -f1)
+	output_size_h=$(du -h "$output_path" | cut -f1)
 
 	echo "Size reduced from ${bold}$input_size_h${normal} to \
 ${bold}$output_size_h${normal} [$percentage %]"

From f6bc246ff288c1c5243920d4f27c4ff84118e12d Mon Sep 17 00:00:00 2001
From: Otthorn <otthorn@crans.org>
Date: Fri, 19 Feb 2021 01:13:20 +0100
Subject: [PATCH 7/8] [lint] FIX SC2086: use double quotes on vars

---
 pdf-optimize | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pdf-optimize b/pdf-optimize
index 0d72042..ee94899 100755
--- a/pdf-optimize
+++ b/pdf-optimize
@@ -103,8 +103,8 @@ ${bold}$output_path${normal}."
 		   -dNOPAUSE \
 		   -dQUIET \
 		   -dBATCH \
-		   -sOutputFile=$output_path \
-		   $input_path
+		   -sOutputFile="$output_path" \
+		   "$input_path"
 	else
 		echo "input_path=$input_path";
 		echo "output_path=$output_path";
@@ -117,8 +117,8 @@ ${bold}$output_path${normal}."
 		   -dPDFSETTINGS=/prepress \
 		   -dNOPAUSE \
 		   -dBATCH \
-		   -sOutputFile=$output_path \
-		   $input_path 
+		   -sOutputFile="$output_path" \
+		   "$input_path" 
 	fi
 	
 	# catching errors

From f5b6f44f798a1e829d0ebffffb6e55a87d2d3f11 Mon Sep 17 00:00:00 2001
From: Otthorn <otthorn@crans.org>
Date: Fri, 19 Feb 2021 01:19:26 +0100
Subject: [PATCH 8/8] [lint] skip error SC2181

---
 .drone.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.drone.yml b/.drone.yml
index 797c3d2..d95d49d 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -7,5 +7,5 @@ steps:
   - name: ShellCheck
     image: koalaman/shellcheck-alpine:v0.7.1
     commands:
-      - shellcheck pdf-optimize
+      - shellcheck -e SC2181 pdf-optimize
 ...