https://perl5.git.perl.org / metaconfig.git / blame
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|---|---|---|
| 7a0f2bf4 AD |
1 | ?RCS: $Id: Whoa.U,v 3.0.1.2 1997/02/28 15:21:21 ram Exp $ |
| 2 | ?RCS: | |
| 3 | ?RCS: Copyright (c) 1991-1993, Raphael Manfredi | |
| 65a32477 MBT |
4 | ?RCS: |
| 5 | ?RCS: You may redistribute only under the terms of the Artistic License, | |
| 7a0f2bf4 AD |
6 | ?RCS: as specified in the README file that comes with the distribution. |
| 7 | ?RCS: You may reuse parts of this distribution only within the terms of | |
| 65a32477 | 8 | ?RCS: that same Artistic License; a copy of which may be found at the root |
| 7a0f2bf4 AD |
9 | ?RCS: of the source tree for dist 3.0. |
| 10 | ?RCS: | |
| 11 | ?RCS: $Log: Whoa.U,v $ | |
| 12 | ?RCS: Revision 3.0.1.2 1997/02/28 15:21:21 ram | |
| 13 | ?RCS: patch61: whoa script now starts with leading "startsh" | |
| 14 | ?RCS: | |
| 15 | ?RCS: Revision 3.0.1.1 1994/10/29 16:02:01 ram | |
| 16 | ?RCS: patch36: added ?F: line for metalint file checking | |
| 17 | ?RCS: | |
| 18 | ?RCS: Revision 3.0 1993/08/18 12:05:19 ram | |
| 19 | ?RCS: Baseline for dist 3.0 netwide release. | |
| 20 | ?RCS: | |
| 21 | ?X: | |
| 22 | ?X: This unit produces a bit of shell code that must be dotted in in order | |
| 23 | ?X: to warn the user in case a change into a variable is noticed. | |
| 24 | ?X: | |
| 25 | ?X: To use this unit, $was must hold the old value that has changed. Upon | |
| 26 | ?X: exit, the two variables $td and $tu are set to the correct value for | |
| 27 | ?X: respectively defining or undefining a variable. For instance, if $vas was | |
| 28 | ?X: $undef, but now $var is $define, after calling . whoa, you should use | |
| 29 | ?X: eval "$var=\$tu" to finally set $var to the correct value. See unit Inlibc. | |
| 30 | ?X: | |
| 31 | ?MAKE:Whoa: Myread startsh hint | |
| 32 | ?MAKE: -pick add $@ %< | |
| 33 | ?F:./whoa | |
| 34 | ?T:var was td tu hintfile | |
| 35 | : set up the script used to warn in case of inconsistency | |
| 36 | cat <<EOS >whoa | |
| 37 | $startsh | |
| 38 | EOS | |
| 39 | cat <<'EOSC' >>whoa | |
| 40 | dflt=y | |
| 41 | case "$hint" in | |
| 42 | recommended) | |
| 43 | case "$hintfile" in | |
| 44 | '') echo "The $hint value for \$$var on this machine was \"$was\"!" >&4 | |
| 45 | ;; | |
| 46 | *) echo "Hmm. Based on the hints in hints/$hintfile.sh, " >&4 | |
| 47 | echo "the $hint value for \$$var on this machine was \"$was\"!" >&4 | |
| 48 | ;; | |
| 49 | esac | |
| 50 | ;; | |
| 51 | *) echo " " | |
| 52 | echo "*** WHOA THERE!!! ***" >&4 | |
| 53 | echo " The $hint value for \$$var on this machine was \"$was\"!" >&4 | |
| 54 | ;; | |
| 55 | esac | |
| 56 | rp=" Keep the $hint value?" | |
| 57 | . ./myread | |
| 58 | case "$ans" in | |
| 59 | y) td=$was; tu=$was;; | |
| 60 | esac | |
| 61 | EOSC | |
| 62 |