jim0409 · May 27, 2020 09:30 · Jan 19, 2016 · Jan 28, 2014
diff --git a/test.sh b/test.sh
@@ -4,7 +4,7 @@
 . parse_yaml.sh
 
 # read yaml file
-eval $(parse_yaml config.yml "config_")
+eval $(parse_yaml zconfig.yml "config_")
 
 # access yaml content
 echo $config_development_database
diff --git a/config.yml → zconfig.yml b/config.yml → zconfig.yml
diff --git a/config.yml b/config.yml
@@ -0,0 +1,6 @@
+development:
+  adapter: mysql2
+  encoding: utf8
+  database: my_database
+  username: root
+  password:
diff --git a/parse_yaml.sh b/parse_yaml.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+parse_yaml() {
+   local prefix=$2
+   local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
+   sed -ne "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);
+      }
+   }'
+}
diff --git a/test.sh b/test.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# include parse_yaml function
+. parse_yaml.sh
+
+# read yaml file
+eval $(parse_yaml config.yml "config_")
+
+# access yaml content
+echo $config_development_database