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build system: rm unused variable declarations from Mamfiles

Now that the Make Abstract Machine files are maintained manually
and not generated automatically, unused variables are an annoying
distraction -- and there are many.

But the language/format is very simple and very parseable using
shell, awk, etc. -- so this was easy to automate. All variables are
declared with 'setv' and they are used if an expansion of the form
${varname} exists (the braces are mandatory in Mamfiles).

bin/Mamfile_rm_unused_vars:
- Added for reference and future use.

src/*/*/Mamfile:
- Remove all unused 'setv' variable declarations.
This commit is contained in:
Martijn Dekker 2021-02-05 15:39:31 +00:00
parent 7b59fb805c
commit 43dfe3c8fa
8 changed files with 30 additions and 201 deletions

30
bin/Mamfile_rm_unused_vars Executable file
View file

@ -0,0 +1,30 @@
#!/usr/bin/env sh
IFS=''; set -fCu # safe mode: no split/glob = no quoting headaches
CCn='
' # newline
let() { return $((!($1))); }
# Remove unused variable definitions from a Mamfile.
# Usage: Mamfile_rm_unused_vars <Mamfile >Mamfile.new
#
# Should work on all current POSIX compliant shells.
# By Martijn Dekker <martijn@inlv.org>, 2021. Public domain.
#
# All variables are declared with 'setv' and they are used if an expansion
# of the form ${varname} exists (the braces are mandatory in Mamfiles).
mamfile=$(let $# && cat "$1" || cat)
vars=$(printf '%s\n' $mamfile | awk '$1 == "setv" { print $2; }')
rm_unused_ere=
IFS=$CCn; for varname in $vars; do IFS=
case $mamfile in
*"\${$varname}"* )
;;
* ) # add with '|' separator for Extended Regular Expression
rm_unused_ere="${rm_unused_ere:+$rm_unused_ere|}setv[[:blank:]]+$varname([[:blank:]]|$)" ;;
esac
done
case $rm_unused_ere in
'') printf '%s\n' $mamfile ;;
*) printf '%s\n' $mamfile | grep -vE $rm_unused_ere ;;
esac

View file

@ -10,38 +10,13 @@ note * http://web.archive.org/web/20041227143022/http://www2.research.att.com/~g
note *
setv INSTALLROOT ../../..
setv PACKAGEROOT ../../../../..
setv AR ${mam_cc_AR} ${mam_cc_AR_ARFLAGS}
setv ARFLAGS rc
setv AS as
setv ASFLAGS
setv CC cc
setv mam_cc_FLAGS
setv KSH_RELFLAGS
setv CCFLAGS ${-debug-symbols?1?${mam_cc_DEBUG} -D_BLD_DEBUG?${mam_cc_OPTIMIZE}?}
setv CCLDFLAGS ${-strip-symbols?1?${mam_cc_LD_STRIP}??}
setv COTEMP $$
setv CPIO cpio
setv CPIOFLAGS
setv CPP "${CC} -E"
setv F77 f77
setv HOSTCC ${CC}
setv IGNORE
setv LD ld
setv LDFLAGS
setv LEX lex
setv LEXFLAGS
setv LPR lpr
setv LPRFLAGS
setv M4FLAGS
setv NMAKE nmake
setv NMAKEFLAGS
setv PR pr
setv PRFLAGS
setv SHELL /bin/sh
setv SILENT
setv TAR tar
setv YACC yacc
setv YACCFLAGS -d
make ${PACKAGEROOT}/lib/package/ast.lic
done ${PACKAGEROOT}/lib/package/ast.lic
make install
@ -50,7 +25,6 @@ make install
done hurl.sh
meta hurl %.sh>% hurl.sh hurl
prev hurl.sh
setv LICENSE -DLICENSE="since=2003,author=gsf"
exec - case static,port:$OPTIND:$RANDOM in
exec - ?*:*:*|*::*|*:*:$RANDOM)
exec - ;;
@ -88,7 +62,6 @@ make install
done iffe.sh
meta iffe %.sh>% iffe.sh iffe
prev iffe.sh
setv LICENSE -DLICENSE="since=1994,author=gsf+kpv"
exec - case static,port:$OPTIND:$RANDOM in
exec - ?*:*:*|*::*|*:*:$RANDOM)
exec - ;;
@ -126,7 +99,6 @@ make install
done mktest.sh
meta mktest %.sh>% mktest.sh mktest
prev mktest.sh
setv LICENSE -DLICENSE="since=2005,author=gsf"
exec - case static,port:$OPTIND:$RANDOM in
exec - ?*:*:*|*::*|*:*:$RANDOM)
exec - ;;
@ -201,7 +173,6 @@ make install
done regress.sh
meta regress %.sh>% regress.sh regress
prev regress.sh
setv LICENSE -DLICENSE="since=1995,author=gsf"
exec - case static,port:$OPTIND:$RANDOM in
exec - ?*:*:*|*::*|*:*:$RANDOM)
exec - ;;
@ -239,7 +210,6 @@ make install
done rt.sh
meta rt %.sh>% rt.sh rt
prev rt.sh
setv LICENSE -DLICENSE="since=2005,author=gsf"
exec - case static,port:$OPTIND:$RANDOM in
exec - ?*:*:*|*::*|*:*:$RANDOM)
exec - ;;
@ -314,7 +284,6 @@ make install
done ditto.sh
meta ditto %.sh>% ditto.sh ditto
prev ditto.sh
setv LICENSE -DLICENSE="since=2001,author=gsf+ek"
exec - case static,port:$OPTIND:$RANDOM in
exec - ?*:*:*|*::*|*:*:$RANDOM)
exec - ;;
@ -352,7 +321,6 @@ make install
done execrate.sh
meta execrate %.sh>% execrate.sh execrate
prev execrate.sh
setv LICENSE -DLICENSE="since=2002,author=gsf"
exec - case static,port:$OPTIND:$RANDOM in
exec - ?*:*:*|*::*|*:*:$RANDOM)
exec - ;;

View file

@ -10,44 +10,15 @@ note * http://web.archive.org/web/20041227143022/http://www2.research.att.com/~g
note *
setv INSTALLROOT ../../..
setv PACKAGE_ast_INCLUDE ${INSTALLROOT}/include/ast
setv PACKAGE_ast_LIB ${INSTALLROOT}/lib
setv PACKAGE_cmd ${INSTALLROOT}
setv PACKAGE_cmd_INCLUDE ${PACKAGE_cmd}/include
setv PACKAGE_cmd_LIB ${PACKAGE_cmd}/lib
setv PACKAGEROOT ../../../../..
setv AR ${mam_cc_AR} ${mam_cc_AR_ARFLAGS}
setv ARFLAGS rc
setv AS as
setv ASFLAGS
setv CC cc
setv mam_cc_FLAGS
setv KSH_RELFLAGS
setv CCFLAGS ${-debug-symbols?1?${mam_cc_DEBUG} -D_BLD_DEBUG?${mam_cc_OPTIMIZE}?}
setv CCLDFLAGS ${-strip-symbols?1?${mam_cc_LD_STRIP}??}
setv COTEMP $$
setv CPIO cpio
setv CPIOFLAGS
setv CPP "${CC} -E"
setv F77 f77
setv HOSTCC ${CC}
setv IFFEFLAGS
setv IGNORE
setv LD ld
setv LDFLAGS
setv LEX lex
setv LEXFLAGS
setv LPR lpr
setv LPRFLAGS
setv M4FLAGS
setv NMAKE nmake
setv NMAKEFLAGS
setv PR pr
setv PRFLAGS
setv SHELL /bin/sh
setv SILENT
setv TAR tar
setv YACC yacc
setv YACCFLAGS -d
make ${PACKAGEROOT}/lib/package/ast.lic
done ${PACKAGEROOT}/lib/package/ast.lic
make .INIT
@ -81,12 +52,9 @@ make install
done pty.c
meta pty.o %.c>%.o pty.c pty
prev pty.c
setv CMD_STANDALONE -DCMD_STANDALONE="b_pty"
setv LICENSE -DLICENSE="since=2001,author=gsf+dgk"
exec - ${CC} ${mam_cc_FLAGS} ${KSH_RELFLAGS} ${CCFLAGS} -I. -I${PACKAGE_ast_INCLUDE} -DERROR_CATALOG=\""builtin"\" -D_PACKAGE_ast -DCMD_STANDALONE=b_pty -c pty.c
done pty.o generated
bind -lutil dontcare
setv CMD_STANDALONE -DCMD_STANDALONE="b_pty"
exec - ${CC} ${CCLDFLAGS} ${mam_cc_FLAGS} ${KSH_RELFLAGS} ${CCFLAGS} ${LDFLAGS} -lm ${mam_cc_L+-L.} ${mam_cc_L+-L${INSTALLROOT}/lib} -o pty pty.o ${mam_libutil} ${mam_libast} ${mam_libcmd}
done pty generated
make ${INSTALLROOT}/bin

View file

@ -10,12 +10,8 @@ note * http://web.archive.org/web/20041227143022/http://www2.research.att.com/~g
note *
setv INSTALLROOT ../../..
setv PACKAGE_ast_INCLUDE ${INSTALLROOT}/include/ast
setv PACKAGE_ast_LIB ${INSTALLROOT}/lib
setv PACKAGEROOT ../../../../..
setv AR ${mam_cc_AR} ${mam_cc_AR_ARFLAGS}
setv ARFLAGS rc
setv AS as
setv ASFLAGS
setv CC cc
setv mam_cc_FLAGS
setv KSH_RELFLAGS
@ -23,30 +19,9 @@ setv KSH_SHOPTFLAGS
setv CCFLAGS ${-debug-symbols?1?${mam_cc_DEBUG} -D_BLD_DEBUG?${mam_cc_OPTIMIZE}?}
setv CCLDFLAGS ${-strip-symbols?1?${mam_cc_LD_STRIP}??}
setv COTEMP $$
setv CPIO cpio
setv CPIOFLAGS
setv CPP "${CC} -E"
setv F77 f77
setv HOSTCC ${CC}
setv IFFEFLAGS
setv IGNORE
setv LD ld
setv LDFLAGS
setv LEX lex
setv LEXFLAGS
setv LPR lpr
setv LPRFLAGS
setv M4FLAGS
setv NMAKE nmake
setv NMAKEFLAGS
setv PR pr
setv PRFLAGS
setv SH_DICT \"libshell\"
setv SHELL /bin/sh
setv SILENT
setv TAR tar
setv YACC yacc
setv YACCFLAGS -d
make ${PACKAGEROOT}/lib/package/ast.lic
done ${PACKAGEROOT}/lib/package/ast.lic
make install
@ -1412,9 +1387,6 @@ make install
meta shcomp.o %.c>%.o sh/shcomp.c shcomp
prev sh/shcomp.c
prev SHOPT.sh
setv CC.DLL -UCC.DLL
setv _BLD_shell -U_BLD_shell
setv _BLD_DLL -U_BLD_DLL
exec - ${CC} ${mam_cc_FLAGS} ${KSH_RELFLAGS} ${KSH_SHOPTFLAGS} ${CCFLAGS} -I. -Iinclude -I${PACKAGE_ast_INCLUDE} -DSH_DICT=${SH_DICT} -D_API_ast=20100309 -D_PACKAGE_ast -DERROR_CONTEXT_T=Error_context_t -c sh/shcomp.c
done shcomp.o generated
prev libshell.a archive
@ -1422,7 +1394,6 @@ make install
prev +li
prev ${mam_libsocket}
prev ${mam_libsecdb}
setv CC.DLL -UCC.DLL
exec - ${CC} ${CCLDFLAGS} ${mam_cc_FLAGS} ${KSH_RELFLAGS} ${KSH_SHOPTFLAGS} ${CCFLAGS} ${LDFLAGS} ${mam_cc_L+-L.} ${mam_cc_L+-L${INSTALLROOT}/lib} -o shcomp shcomp.o ${mam_libshell} ${mam_libnsl} ${mam_libast}
done shcomp generated
make suid_exec
@ -1438,15 +1409,12 @@ make install
meta suid_exec.o %.c>%.o sh/suid_exec.c suid_exec
prev sh/suid_exec.c
prev SHOPT.sh
setv CC.DLL -UCC.DLL
setv _BLD_shell -U_BLD_shell
exec - ${CC} ${mam_cc_FLAGS} ${KSH_RELFLAGS} ${KSH_SHOPTFLAGS} ${CCFLAGS} -I. -Iinclude -I${PACKAGE_ast_INCLUDE} -DERROR_CONTEXT_T=Error_context_t -D_API_ast=20100309 -D_PACKAGE_ast -c sh/suid_exec.c
done suid_exec.o generated
prev +ljobs
prev +li
prev ${mam_libsocket}
prev ${mam_libsecdb}
setv CC.DLL -UCC.DLL
exec - ${CC} ${CCLDFLAGS} ${mam_cc_FLAGS} ${KSH_RELFLAGS} ${KSH_SHOPTFLAGS} ${CCFLAGS} ${LDFLAGS} -lm ${mam_cc_L+-L.} ${mam_cc_L+-L${INSTALLROOT}/lib} -o suid_exec suid_exec.o ${mam_libast} ${mam_libnsl} ${mam_libast}
done suid_exec generated
make shell
@ -1558,19 +1526,16 @@ make install
prev ${INSTALLROOT}/fun
make fun/dirs
done fun/dirs
setv mode -Dmode="+x"
exec - test '' = 'fun/dirs' || ${STDCMP} 2>/dev/null -s fun/dirs ${INSTALLROOT}/fun/dirs || { ${STDMV} ${INSTALLROOT}/fun/dirs ${INSTALLROOT}/fun/dirs.old 2>/dev/null || true; ${STDCP} fun/dirs ${INSTALLROOT}/fun/dirs && chmod ugo+x ${INSTALLROOT}/fun/dirs ;}
done ${INSTALLROOT}/fun/dirs generated
make ${INSTALLROOT}/fun/popd
make fun/popd
done fun/popd
setv mode -Dmode="+x"
exec - test '' = 'fun/popd' || ${STDCMP} 2>/dev/null -s fun/popd ${INSTALLROOT}/fun/popd || { ${STDMV} ${INSTALLROOT}/fun/popd ${INSTALLROOT}/fun/popd.old 2>/dev/null || true; ${STDCP} fun/popd ${INSTALLROOT}/fun/popd && chmod ugo+x ${INSTALLROOT}/fun/popd ;}
done ${INSTALLROOT}/fun/popd generated
make ${INSTALLROOT}/fun/pushd
make fun/pushd
done fun/pushd
setv mode -Dmode="+x"
exec - test '' = 'fun/pushd' || ${STDCMP} 2>/dev/null -s fun/pushd ${INSTALLROOT}/fun/pushd || { ${STDMV} ${INSTALLROOT}/fun/pushd ${INSTALLROOT}/fun/pushd.old 2>/dev/null || true; ${STDCP} fun/pushd ${INSTALLROOT}/fun/pushd && chmod ugo+x ${INSTALLROOT}/fun/pushd ;}
done ${INSTALLROOT}/fun/pushd generated
done install virtual

View file

@ -11,38 +11,14 @@ note *
setv INSTALLROOT ../../..
setv PACKAGEROOT ../../../../..
setv AR ${mam_cc_AR} ${mam_cc_AR_ARFLAGS}
setv ARFLAGS rc
setv AS as
setv ASFLAGS
setv CC cc
setv mam_cc_FLAGS ${mam_cc_DLL} -D_BLD_ast
setv KSH_RELFLAGS
setv CCFLAGS ${-debug-symbols?1?${mam_cc_DEBUG} -D_BLD_DEBUG?${mam_cc_OPTIMIZE}?}
setv CCLDFLAGS ${-strip-symbols?1?${mam_cc_LD_STRIP}??}
setv COTEMP $$
setv CPIO cpio
setv CPIOFLAGS
setv CPP "${CC} -E"
setv F77 f77
setv HOSTCC ${CC}
setv IFFEFLAGS
setv IGNORE
setv LD ld
setv LDFLAGS
setv LEX lex
setv LEXFLAGS
setv LPR lpr
setv LPRFLAGS
setv M4FLAGS
setv NMAKE nmake
setv NMAKEFLAGS
setv PR pr
setv PRFLAGS
setv SHELL /bin/sh
setv SILENT
setv TAR tar
setv YACC yacc
setv YACCFLAGS -d
make ${PACKAGEROOT}/lib/package/ast.lic
done ${PACKAGEROOT}/lib/package/ast.lic
make install

View file

@ -10,41 +10,15 @@ note * http://web.archive.org/web/20041227143022/http://www2.research.att.com/~g
note *
setv INSTALLROOT ../../..
setv PACKAGE_ast_INCLUDE ${INSTALLROOT}/include/ast
setv PACKAGE_ast_LIB ${INSTALLROOT}/lib
setv PACKAGEROOT ../../../../..
setv AR ${mam_cc_AR} ${mam_cc_AR_ARFLAGS}
setv ARFLAGS rc
setv AS as
setv ASFLAGS
setv CC cc
setv mam_cc_FLAGS ${mam_cc_DLL}
setv KSH_RELFLAGS
setv CCFLAGS ${-debug-symbols?1?${mam_cc_DEBUG} -D_BLD_DEBUG?${mam_cc_OPTIMIZE}?}
setv CCLDFLAGS ${-strip-symbols?1?${mam_cc_LD_STRIP}??}
setv COTEMP $$
setv CPIO cpio
setv CPIOFLAGS
setv CPP "${CC} -E"
setv F77 f77
setv HOSTCC ${CC}
setv IFFEFLAGS
setv IGNORE
setv LD ld
setv LDFLAGS ""
setv LEX lex
setv LEXFLAGS
setv LPR lpr
setv LPRFLAGS
setv M4FLAGS
setv NMAKE nmake
setv NMAKEFLAGS
setv PR pr
setv PRFLAGS
setv SHELL /bin/sh
setv SILENT
setv TAR tar
setv YACC yacc
setv YACCFLAGS -d
make ${PACKAGEROOT}/lib/package/ast.lic
done ${PACKAGEROOT}/lib/package/ast.lic
make install

View file

@ -10,41 +10,15 @@ note * http://web.archive.org/web/20041227143022/http://www2.research.att.com/~g
note *
setv INSTALLROOT ../../..
setv PACKAGE_ast_INCLUDE ${INSTALLROOT}/include/ast
setv PACKAGE_ast_LIB ${INSTALLROOT}/lib
setv PACKAGEROOT ../../../../..
setv AR ${mam_cc_AR} ${mam_cc_AR_ARFLAGS}
setv ARFLAGS rc
setv AS as
setv ASFLAGS
setv CC cc
setv mam_cc_FLAGS ${mam_cc_DLL}
setv KSH_RELFLAGS
setv CCFLAGS ${-debug-symbols?1?${mam_cc_DEBUG} -D_BLD_DEBUG?${mam_cc_OPTIMIZE}?}
setv CCLDFLAGS ${-strip-symbols?1?${mam_cc_LD_STRIP}??}
setv COTEMP $$
setv CPIO cpio
setv CPIOFLAGS
setv CPP "${CC} -E"
setv F77 f77
setv HOSTCC ${CC}
setv IFFEFLAGS
setv IGNORE
setv LD ld
setv LDFLAGS
setv LEX lex
setv LEXFLAGS
setv LPR lpr
setv LPRFLAGS
setv M4FLAGS
setv NMAKE nmake
setv NMAKEFLAGS
setv PR pr
setv PRFLAGS
setv SHELL /bin/sh
setv SILENT
setv TAR tar
setv YACC yacc
setv YACCFLAGS -d
make ${PACKAGEROOT}/lib/package/ast.lic
done ${PACKAGEROOT}/lib/package/ast.lic
make install

View file

@ -10,41 +10,15 @@ note * http://web.archive.org/web/20041227143022/http://www2.research.att.com/~g
note *
setv INSTALLROOT ../../..
setv PACKAGE_ast_INCLUDE ${INSTALLROOT}/include/ast
setv PACKAGE_ast_LIB ${INSTALLROOT}/lib
setv PACKAGEROOT ../../../../..
setv AR ${mam_cc_AR} ${mam_cc_AR_ARFLAGS}
setv ARFLAGS rc
setv AS as
setv ASFLAGS
setv CC cc
setv mam_cc_FLAGS ${mam_cc_PIC}
setv KSH_RELFLAGS
setv CCFLAGS ${-debug-symbols?1?${mam_cc_DEBUG} -D_BLD_DEBUG?${mam_cc_OPTIMIZE}?}
setv CCLDFLAGS ${-strip-symbols?1?${mam_cc_LD_STRIP}??}
setv COTEMP $$
setv CPIO cpio
setv CPIOFLAGS
setv CPP "${CC} -E"
setv F77 f77
setv HOSTCC ${CC}
setv IFFEFLAGS
setv IGNORE
setv LD ld
setv LDFLAGS
setv LEX lex
setv LEXFLAGS
setv LPR lpr
setv LPRFLAGS
setv M4FLAGS
setv NMAKE nmake
setv NMAKEFLAGS
setv PR pr
setv PRFLAGS
setv SHELL /bin/sh
setv SILENT
setv TAR tar
setv YACC yacc
setv YACCFLAGS -d
make ${PACKAGEROOT}/lib/package/ast.lic
done ${PACKAGEROOT}/lib/package/ast.lic
make install