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Haskell Shell Python
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SYNOPSIS taskl //<task> <arg>* < <taskl.yaml> taskl (-v | --version) taskl (-h | --help) DESCRIPTION Task/L compiles a system configuration, described in YAML, to a Bash script which can be used to instantiate the configuartion. The YAML files describes tasks which have a body and dependencies on other tasks. Tasks can accept arguments, which are templated in to the commands that make up the body and can be passed on to the dependen- cies. The body of a Task/L task is a list commands, where each command is an array of strings (without any of the usual shell escaping headaches). If the headword of the command is an HTTP or HTTPS URL, then the target of the URL will be downloaded, marked executable and run with the given arguments at run time. DEPENDENCIES Scripts generated by taskl rely on bash and curl. APPLICATION taskl //nginx < example/servers.yaml | ssh firstname.lastname@example.org sudo bash The generated scripts can be given arguments to run specific task bod- ies (for debugging), to show the plan and to show the subtasks that were compiled in. taskl //nginx < example/servers.yaml > nginx.bash chmod ug+x nginx.bash # Show help for installer script. ./nginx.bash -h USAGE: ./nginx.bash (-0)? ./nginx.bash show (-0)? ./nginx.bash //<task> <arg>* ./nginx.bash list ... ./nginx.bash show * //nginx * //apt -y install nginx-extras * //apt.ppa nginx/stable * //apt.ppa.setup * //apt.up # Null separated variant of the above. ./nginx.bash show -0 ./nginx.bash list //apt //apt.ppa //apt.ppa.setup //apt.up //nginx # Perform installation, displaying success (or failure) of each task as it # is completed. ./nginx.bash * //nginx * //apt -y install nginx-extras * //apt.ppa nginx/stable * //apt.ppa.setup + //apt.ppa.setup + //apt.ppa nginx/stable * //apt.up + //apt.up + //apt -y install nginx-extras + //nginx