Merge pull request #8 from cytopia/release-0.5

terraform-docs 0.12 parsing

Author: cytopia

README.md

@@ -25,10 +25,11 @@ View **[Dockerfile](https://github.com/cytopia/docker-terraform-docs/blob/master
 Tiny Alpine-based multistage-build dockerized version of [terraform-docs](https://github.com/segmentio/terraform-docs)<sup>[1]</sup>,
 which additionally implements `terraform-docs-replace` allowing you to automatically and safely
 replace the `terraform-docs` generated output infile.
-Furthermore this implementation is also **Terraform >= 0.12 ready**. See [Generic Usage](#generic) for more details.
+Furthermore this implementation is also **Terraform >= 0.12 ready**<sup>[2]</sup>. See [Generic Usage](#generic) for more details.
 The image is built nightly against multiple stable versions and pushed to Dockerhub.
 
-<sub>[1] Official project: https://github.com/segmentio/terraform-docs</sub>
+* <sub>[1] Official project: https://github.com/segmentio/terraform-docs</sub>
+* <sub>[2] Based on an awk script by [cloudposse/build-harness](https://github.com/cloudposse/build-harness/blob/master/bin/terraform-docs.awk)</sub>
 
 
 ## Available Docker image versions

data/docker-entrypoint.sh

@@ -144,7 +144,7 @@ if [ "${#}" -ge "1" ]; then
 	###
 	elif [ "${1}" = "terraform-docs-012" ]; then
 		mkdir -p /tmp-012
-		awk -f /usr/bin/terraform-docs.awk *.tf > "/tmp-012/tmp.tf"
+		awk -f /terraform-docs.awk *.tf > "/tmp-012/tmp.tf"
 
 		# Remove last argument (path)
 		args="$(trim_last_arg "${@}")"	# get all the args except the last arg

data/terraform-docs.awk

@@ -10,33 +10,49 @@
     braceCnt++
   }
 
-  if ( /\}/ ) {
+   if ( /\}/ ) {
     braceCnt--
   }
 
+  # [START] variable or output block started
   if ($0 ~ /(variable|output) "(.*?)"/) {
+    # [CLOSE] "default" block
+    if (blockDefCnt > 0) {
+      blockDefCnt = 0
+    }
     blockCnt++
     print $0
   }
 
+  # [START] multiline default statement started
   if (blockCnt > 0) {
-    if ($1 == "description") {
+    if ($1 == "default") {
       print $0
+      if ($NF ~ /[\[\(\{]/) {
+        blockDefCnt++
+        blockDefStart=1
+      }
     }
   }
 
-  if (blockCnt > 0) {
-    if ($1 == "default") {
-      if (braceCnt > 1) {
-        print "  default = {}"
-      } else {
-        print $0
+  # [PRINT] single line "description"
+  if (blockDefCnt == 0) {
+    if ($1 == "description") {
+      # [CLOSE] "default" block
+      if (blockDefCnt > 0) {
+        blockDefCnt = 0
       }
+      print $0
     }
   }
 
+  # [PRINT] single line "type"
   if (blockCnt > 0) {
     if ($1 == "type" ) {
+      # [CLOSE] "default" block
+      if (blockDefCnt > 0) {
+        blockDefCnt = 0
+      }
       type=$3
       if (type ~ "object") {
         print "  type = \"object\""
@@ -46,10 +62,20 @@
     }
   }
 
+  # [CLOSE] variable/output block
   if (blockCnt > 0) {
     if (braceCnt == 0 && blockCnt > 0) {
       blockCnt--
       print $0
     }
   }
+
+  # [PRINT] Multiline "default" statement
+  if (blockCnt > 0 && blockDefCnt > 0) {
+    if (blockDefStart == 1) {
+      blockDefStart = 0
+    } else {
+      print $0
+    }
+  }
 }