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opt-jobs-no-action.mk revision 1.1 
      1 # $NetBSD: opt-jobs-no-action.mk,v 1.1 2020/12/09 00:25:00 rillig Exp $
      2 #
      3 # Tests for the combination of the options -j and -n, which prints the
      4 # commands instead of actually running them.
      5 #
      6 # The format of the output differs from the output of only the -n option,
      7 # without the -j.  This is because all this code is implemented twice, once
      8 # in compat.c and once in job.c.
      9 
     10 .MAKEFLAGS: -j1 -n
     11 
     12 # Change the templates for running the commands in jobs mode, to make it
     13 # easier to see what actually happens.
     14 #
     15 # The shell attributes are handled by Job_ParseShell.
     16 # The shell attributes 'quiet' and 'echo' don't need a trailing newline,
     17 # this is handled by the [0] != '\0' checks in Job_ParseShell.
     18 # The '\#' is handled by ParseGetLine.
     19 # The '\n' is handled by Str_Words in Job_ParseShell.
     20 # The '$$' is handled by Var_Subst in ParseDependency.
     21 .SHELL: \
     22 	name=sh \
     23 	path=${.SHELL} \
     24 	quiet="\# .echoOff" \
     25 	echo="\# .echoOn" \
     26 	filter="\# .noPrint\n" \
     27 	check="\# .errOnOrEcho\n""echo \"%s\"\n" \
     28 	ignore="\# .errOffOrExecIgnore\n""%s\n" \
     29 	errout="\# .errExit\n""{ %s \n} || exit $$?\n"
     30 
     31 all:
     32 	# The following command is regular, it is printed twice:
     33 	# - first using the template shell.errOnOrEcho,
     34 	# - then using the template shell.errExit.
     35 	false regular
     36 
     37 	# The following command is silent, it is printed once, using the
     38 	# template shell.errExit.
     39 	@: silent
     40 
     41 	# The following command ignores errors, it is printed once, using
     42 	# the default template for cmdTemplate, which is "%s\n".
     43 	# XXX: Why is it not printed using shell.errOnOrEcho as well?
     44 	# XXX: The '-' should not influence the echoing of the command.
     45 	-false ignore-errors
     46 
     47 	# The following command ignores the -n command line option, it is
     48 	# not handled by the Job module but by the Compat module, see the
     49 	# '!silent' in Compat_RunCommand.
     50 	+echo run despite the -n option
     51 
     52 	# TODO: test all 8 combinations of '-', '+', '@'.
     53 	# TODO: for each of the above test, test '-true' and '-false'.
     54 	# The code with its many branches feels like a big mess.
     55 	# See opt-jobs.mk for the corresponding tests without the -n option.
     56