Re: debootstrap 0.1.15.5, urgent for woody, needs testing

[Tommi Virtanen <tv@debian.org>]

Herbert Xu <herbert@gondor.apana.org.au> writes:

> > As I understood it, it allowed it to be called like "smallyes ''".
> Which could've been achieved by simply replacing
> 
> YES="${1:-y}"
> 
> with
> 
> YES="${1-y}"

	Oh, that still fails the second part of the bug report (#115581)
        -- smallyes foo bar echoes "foo\nfoo\n..", not "foo bar\nfoo bar\n.."

        Fortunately, that isn't triggered by anything (yet). Do you want to
        rely on that?

        In fact, no combination of 1,*,@ and :-, - manages to work perfectly
        for all of bash, ash and zsh ;) Assuming install will use ash or bash,
        either *-y or @-y seems like a good pick.

        In the following, "y::foo bar:" is the expected result.

[tv@tv ~]$ for shell in ash bash zsh; do export shell; $shell -c 'smallyes_xu() { YES="${1:-y}"; while true ; do echo "$YES" ; done; }; ( echo $shell; smallyes_xu |head -1; smallyes_xu ""|head -1; smallyes_xu foo bar|head -1 )|tr "\012" ":"'; echo; done  ;echo
ash:y:y:foo:
bash:y:y:foo:
zsh:y:y:foo:

[tv@tv ~]$ for shell in ash bash zsh; do export shell; $shell -c 'smallyes_xu() { YES="${1-y}"; while true ; do echo "$YES" ; done; }; ( echo $shell; smallyes_xu |head -1; smallyes_xu ""|head -1; smallyes_xu foo bar|head -1 )|tr "\012" ":"'; echo; done  ;echo 
ash:y::foo:
bash:y::foo:
zsh:y::foo:

[tv@tv ~]$ for shell in ash bash zsh; do export shell; $shell -c 'smallyes_xu() { YES="${@:-y}"; while true ; do echo "$YES" ; done; }; ( echo $shell; smallyes_xu |head -1; smallyes_xu ""|head -1; smallyes_xu foo bar|head -1 )|tr "\012" ":"'; echo; done  ;echo
ash:y:y:foo bar:
bash:y::foo bar:
zsh:y::foo bar:

[tv@tv ~]$ for shell in ash bash zsh; do export shell; $shell -c 'smallyes_xu() { YES="${@-y}"; while true ; do echo "$YES" ; done; }; ( echo $shell; smallyes_xu |head -1; smallyes_xu ""|head -1; smallyes_xu foo bar|head -1 )|tr "\012" ":"'; echo; done  ;echo 
ash:y::foo bar:
bash:y::foo bar:
zsh:::foo bar:

[tv@tv ~]$ for shell in ash bash zsh; do export shell; $shell -c 'smallyes_xu() { YES="${*:-y}"; while true ; do echo "$YES" ; done; }; ( echo $shell; smallyes_xu |head -1; smallyes_xu ""|head -1; smallyes_xu foo bar|head -1 )|tr "\012" ":"'; echo; done  ;echo
ash:y:y:foo bar:
bash:y::foo bar:
zsh:y:y:foo bar:

[tv@tv ~]$ for shell in ash bash zsh; do export shell; $shell -c 'smallyes_xu() { YES="${*-y}"; while true ; do echo "$YES" ; done; }; ( echo $shell; smallyes_xu |head -1; smallyes_xu ""|head -1; smallyes_xu foo bar|head -1 )|tr "\012" ":"'; echo; done  ;echo 
ash:y::foo bar:
bash:y::foo bar:
zsh:::foo bar:

[tv@tv ~]$ 

	Of course, my version works perfectly ;-)

[tv@tv ~]$ for shell in ash bash zsh; do export shell; $shell -c 'smallyes_tv() { if [ "$#" = "0" ]; then YES=y; else YES="$*"; fi; while true; do echo "$YES"; done; }; ( echo $shell; smallyes_tv |head -1; smallyes_tv ""|head -1; smallyes_tv foo bar|head -1 )|tr "\012" ":"'; echo; done  ;echo
ash:y::foo bar:
bash:y::foo bar:
zsh:y::foo bar:

-- 
tv@{{hq.yok.utu,havoc,gaeshido}.fi,{debian,wanderer}.org,stonesoft.com}
double a,b=4,c;main(){for(;++a<2e6;c-=(b=-b)/a++);printf("%f\n",c);}