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Contents
module Sprinkle
module Verifiers
# = Executable Verifier
#
# Contains a verifier to check the existance of an executable
# script on your server.
#
# == Example Usage
#
# First, absolute path to an executable:
#
# verify { has_executable '/usr/special/secret/bin/scipt' }
#
# Second, a global executable which would be available anywhere on the
# command line:
#
# verify { has_executable 'grep' }
module Executable
Sprinkle::Verify.register(Sprinkle::Verifiers::Executable)
# Checks if <tt>path</tt> is an executable script using which
# - accepts both absolute paths and binary names with no path
def has_executable(path)
@commands << "which #{path}"
end
# Same as has_executable but with checking for e certain version number.
# Last option is the parameter to append for getting the version (which
# defaults to "-v").
def has_executable_with_version(path, version, get_version = '-v')
if path.include?('/')
@commands << "[ -x #{path} -a -n \"`#{path} #{get_version} 2>&1 | egrep -e \\\"#{version}\\\"`\" ]"
else
@commands << "[ -n \"`echo \\`which #{path}\\``\" -a -n \"`\\`which #{path}\\` #{get_version} 2>&1 | egrep -e \\\"#{version}\\\"`\" ]"
end
end
# Same as has_executable but checking output of a certain command
# with grep.
def has_version_in_grep(cmd, version)
@commands << "[ -n \"`#{cmd} 2> /dev/null | egrep -e \\\"#{version}\\\"`\" ]"
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems