{"id":909,"date":"2013-09-19T21:07:08","date_gmt":"2013-09-19T19:07:08","guid":{"rendered":"https:\/\/www.npcglib.org\/~stathis\/blog\/?p=909"},"modified":"2013-09-19T21:07:08","modified_gmt":"2013-09-19T19:07:08","slug":"windows-task-configuration-files-batch-scripts","status":"publish","type":"post","link":"https:\/\/www.npcglib.org\/~stathis\/blog\/2013\/09\/19\/windows-task-configuration-files-batch-scripts\/","title":{"rendered":"windows task: Configuration files for batch scripts"},"content":{"rendered":"

As my build scripts keep getting more complicated, I am now in need of a configuration file for each. Furthermore, I have several machines and I need to sometimes change paths around. In other words, I need a local configuration file for each script and for each host I build on.<\/p>\n

I will use myScript.bat<\/code> as the main executable batch, which contains:<\/p>\n

\r\n@echo off\r\nSETLOCAL EnableExtensions EnableDelayedExpansion\r\nrem ####################################################################################\r\nrem ## Default Configuration\r\nrem ####################################################################################\r\n\r\nSET EXTERNAL_VARIABLE_A=This is the default variable A\r\nSET EXTERNAL_VARIABLE_B=This is the default variable B\r\n\r\nrem ####################################################################################\r\nrem ## PLEASE DO NOT EDIT BELOW THIS LINE\r\nrem ####################################################################################\r\n\r\nrem We load the config file first\r\ncall :loadconfig \"%~dpn0\"\r\n\r\nrem we then carry on execution\r\ncall :execScript\r\n\r\n@exit \/B 0\r\n\r\nrem ####################################################################################\r\nrem ## Pseudo-function to load config\r\nrem ####################################################################################\r\n:loadconfig\r\nrem set the variable HOSTNAME by executing the command (that's the computer's name)\r\nFOR \/F \"delims=\" %%a IN ('hostname') DO @set HOSTNAME=%%a\r\n\r\nrem strip double quotes\r\nset scriptFile=%1\r\nset scriptFile=%scriptFile:\"=%\r\n\r\nrem We use two files: myScript.conf and myScript.\r\nrem myScript. overrides myScript.conf\r\nrem %~dpn0 is the full file minus the extension.\r\nFOR %%c IN (\r\n\t\"!scriptFile!.conf\"\r\n\t\"!scriptFile!.!HOSTNAME!\"\r\n) DO (\r\n\tIF EXIST \"%%c\" (\r\n\t\techo Loading local configuration from: %%c\r\n\t\tFOR \/F \"usebackq delims=\" %%v IN (%%c) DO (set %%v)\r\n\t)\r\n)\r\n\r\nGOTO :eof\r\n\r\nrem ####################################################################################\r\n\r\nrem Use this pseudo-function to write the code of your main script\r\n:execScript\r\n\r\necho !EXTERNAL_VARIABLE_A!\r\necho !EXTERNAL_VARIABLE_B!\r\n\r\nENDLOCAL\r\n<\/pre>\n
Then for the configuration file, I will use on my host baux<\/code>, I will create a file called myScript.baux<\/code>, which will contain the variables I want to configure externally. Note there is no SET command infront of the variables in the configuration file!<\/strong> The file may look like this:<\/p>\n
\r\nEXTERNAL_VARIABLE_A=Mary had a little lamb\r\nEXTERNAL_VARIABLE_B=Johny had a little pump\r\n<\/pre>\n
Acknowledgements<\/h2>\n
Joey, over at StackOverflow, provided the central idea to solving this<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
As my build scripts keep getting more complicated, I am now in need of a configuration file for each. Furthermore, I have several machines and I need to sometimes change paths around. In other words, I need a local configuration file for each script and for each host I build on. I will use myScript.bat […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[21,40,9,64,65],"yoast_head":"\n\n\n\n\n\t\n\t\n\t\n