progress

scripts/ReadYaml.sh

@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+# shellcheck disable=SC1003
+
+# Based on https://gist.github.com/pkuczynski/8665367
+
+parse_yaml() {
+    local yaml_file=$1
+    local prefix=$2
+    local s
+    local w
+    local fs
+
+    s='[[:space:]]*'
+    w='[a-zA-Z0-9_.-]*'
+    fs="$(echo @|tr @ '\034')"
+
+    (
+        sed -e '/- [^\“]'"[^\']"'.*: /s|\([ ]*\)- \([[:space:]]*\)|\1-\'$'\n''  \1\2|g' |
+
+        sed -ne '/^--/s|--||g; s|\"|\\\"|g; s/[[:space:]]*$//g;' \
+            -e "/#.*[\"\']/!s| #.*||g; /^#/s|#.*||g;" \
+            -e "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \
+            -e "s|^\($s\)\($w\)${s}[:-]$s\(.*\)$s\$|\1$fs\2$fs\3|p" |
+
+        awk -F"$fs" '{
+            indent = length($1)/2;
+            if (length($2) == 0) { conj[indent]="+";} else {conj[indent]="";}
+            vname[indent] = $2;
+            for (i in vname) {if (i > indent) {delete vname[i]}}
+                if (length($3) > 0) {
+                    vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
+                    printf("%s%s%s%s=(\"%s\")\n", "'"$prefix"'",vn, $2, conj[indent-1],$3);
+                }
+            }' |
+
+        sed -e 's/_=/+=/g' |
+
+        awk 'BEGIN {
+                FS="=";
+                OFS="="
+            }
+            /(-|\.).*=/ {
+                gsub("-|\\.", "_", $1)
+            }
+            { print }'
+    ) < "$yaml_file"
+}
+
+create_variables() {
+    local yaml_file="$1"
+    local prefix="$2"
+    eval "$(parse_yaml "$yaml_file" "$prefix")"
+}
+
+parse_yaml rules.yaml
+exit 0
+
+yaml() {
+    python3 -c "import yaml;print(yaml.load(open('$1'))$2)"
+}
+
+yaml rules.yaml
+exit 0
+
+VALUE=$(yaml ~/my_yaml_file.yaml "['a_key']")
+function parse_yaml {
+   local prefix=$2
+   local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
+   sed -ne "s|^\($s\):|\1|" \
+        -e "s|^\($s\)\($w\)$s:$s[\"']\(.*\)[\"']$s\$|\1$fs\2$fs\3|p" \
+        -e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p"  $1 |
+   awk -F$fs '{
+      indent = length($1)/2;
+      vname[indent] = $2;
+      for (i in vname) {if (i > indent) {delete vname[i]}}
+      if (length($3) > 0) {
+         vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
+         printf("%s%s%s=\"%s\"\n", "'$prefix'",vn, $2, $3);
+      }
+   }'
+}
+
+parse_yaml rules.yaml