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Editing whitespace-separated config files with cfengine
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# Sets the RHS of configuration items in the file of the form | |
# LHS RHS | |
# If the line is commented out with #, it gets uncommented first. | |
# Adds a new line if none exists. | |
# The argument is an associative array containing v[LHS]="rhs" | |
# Based on set_variable_values from cfengine_stdlib.cf, modified | |
# by Diego Zamboni to use whitespace as separator, and to handle | |
# commented-out lines. | |
bundle edit_line set_config_values(v) | |
{ | |
vars: | |
"index" slist => getindices("$(v)"); | |
# Be careful if the index string contains funny chars | |
"cindex[$(index)]" string => canonify("$(index)"); | |
field_edits: | |
# If the line is there, but commented out, first uncomment it | |
"#+$(index)\s+.*" | |
edit_field => col("\s+","1","$(index)","set"); | |
# match a line starting like the key something | |
"$(index)\s+.*" | |
edit_field => col("\s+","2","$($(v)[$(index)])","set"), | |
classes => if_ok("not_$(cindex[$(index)])"); | |
insert_lines: | |
"$(index) $($(v)[$(index)])", | |
ifvarclass => "!not_$(cindex[$(index)])"; | |
} |
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