/* REXX BACKUP Make a safety copy of a library via PDS2SEQ Use '(routine name) ?' for HELP-text. Written by Frank Clarke rexxhead@yahoo.com 20230426 Impact Analysis . SYSEXEC PDS2SEQ . SYSEXEC RUNDATA . SYSEXEC TRAPOUT Modification History 20230503 fxc made it work for any specified input; adjust HELP; 20230613 fxc use topmost DSN in SYSEXEC as default 20230724 fxc use hhmm in subid; NOLOG for PDS2SEQ; 20230810 fxc set msglim based on screen width; 20230912 fxc enable TERSE; 20240109 fxc correctly set input dsn when none specified; 20240305 fxc use RUNDATA to collect MODE; 20240308 fxc chg dollar-sign to @ everywhere; 20240408 fxc add LOG option; 20240414 fxc DUMP_QUEUE quiet; 20250916 fxc SPACEOUT; new BACKEND; */ arg argline address TSO /* REXXSKEL ver.20230401 */ arg parms "((" opts signal on syntax signal on novalue call TOOLKIT_INIT /* conventional start-up -*/ rc = Trace( "O" ); rc = Trace( tv ) info = parms /* to enable parsing */ call A_INIT /* -*/ call C_CRE_BACKUP /* -*/ if \sw.0nested then call DUMP_QUEUE 'quiet' /* -*/ exit /*@ BACKUP */ /* Initialization . ----------------------------------------------------------------- */ A_INIT: /*@ */ if branch then call BRANCH address TSO "NEWSTACK" "RUNDATA READ TBLKEY" exec_name do queued() pull tag tagval if tag = "" then do say tag tagval iterate end /* */ tagval = Strip( tagval ) @z@ = Value( tag,tagval ) /* tag <-- tagval */ end /* queued */ "DELSTACK" info = info mode /* splice MODE to INFO */ sw.0Terse = SWITCH( "TERSE" ) parse var info input info if input = '' then call AI_INDS /* -*/ if monitor then say, "Using" input "as input." if Left( input,1 ) = "'" then, input = Strip( input,,"'" ) /* unquoted */ else, input = Userid()"."input /* fully-qualified */ pt = LastPos( '.', input ) parse var input front =(pt) back /* 'back' has a leading dot */ msglim = SYSVAR( "SYSWTERM" ) - 12 parse value "0 0 0 0 0" with, log# log. . parse value Date( "S" ) Time( "S" ) Time( "N" ) with, yyyymmdd sssss hhmmss . hhmmss = Space( Translate( hhmmss,' ',':' ) ,0 ) parse var yyyymmdd 4 yrdigit 5 mm 7 dd /* 9 12 14 maybe */ if Pos( yrdigit,"13579" ) > 0 then mm = mm + 12 /* mm=24 */ logtag = Substr( "ABCDEFGHIJKLMNOPQRSTUVWX",mm,1 ) /* logtag=X */ subid = logtag""dd""Left( hhmmss,4 ) /* X141743 ? */ output = front'.'subid''back if monitor then say, "Output is" output"." return /*@ A_INIT */ /* No input dataset was specified. Select the topmost DSN in SYSEXEC. . ----------------------------------------------------------------- */ AI_INDS: /*@ */ if branch then call BRANCH address TSO "NEWSTACK" "LA SYSEXEC (( STACK LIST " pull ddn inds dslist /* fully-qualified unquoted */ "DELSTACK" input = "'"inds"'" if monitor then say, input "used as a default input." return /*@ AI_INDS */ /* Use PDS2SEQ to create a backup file with stats. The caller will be placed into VIEW on the output dtatset. . ----------------------------------------------------------------- */ C_CRE_BACKUP: /*@ */ if branch then call BRANCH address TSO if sw.0Terse then terse = 'TERSE' else terse = '' "PDS2SEQ '"input"' OUTPUT '"output"' STATS" logopt terse return /*@ C_CRE_BACKUP */ /* . ----------------------------------------------------------------- */ LOCAL_PREINIT: /*@ customize opts */ address TSO sw.0Log = SWITCH( 'LOG' ) if sw.0Log then logopt = '' else logopt = 'NOLOG' return /*@ LOCAL_PREINIT */ /* subroutines below LOCAL_PREINIT are not selected by SHOWFLOW */ /* . ----------------------------------------------------------------- */ HELP: /*@ */ address TSO;"CLEAR" if helpmsg <> "" then say helpmsg ex_nam = Left(exec_name,8) /* predictable size */ say " " say " "ex_nam" Makes a backup copy of the specified or implied input " say " dataset via PDS2SEQ with STATS. The output dataset will " say " be " say " . (front).(timestamp).(llq) " say " . 'front' replicates all the input dataset nodes except the " say " last, " say " . 'timestamp' is lddhhmm, 'l' being a surrogate for the " say " month, 'dd' being the day number, and 'hhmm' being the " say " time in 24-hour format. " say " . 'llq' is the last input dataset node. " say " " say " Syntax: "ex_nam" inputds (Defaults)" say " TERSE " say " " say " inputds is a TSO-format (quoted if fully-qualified) " say " partitioned dataset to be copied to backup. If not " say " specified, the topmost DSN in SYSEXEC will be used. " say " " say " TERSE is passed to PDS2SEQ. " say " " "NEWSTACK"; pull ; "CLEAR" ; "DELSTACK" say " Debugging tools provided include: " say " " say " MONITOR: displays key information throughout processing. " say " " say " BRANCH: show all paragraph entries. " say " " say " TRACE tv: will use value following TRACE to place the execution " say " into REXX TRACE Mode. " say " " say " " say " Debugging tools can be accessed in the following manner: " say " " say " TSO "ex_nam" parameters (( debug-options " say " " say " For example: " say " " say " TSO "ex_nam" (( BRANCH TRACE ?R " if sysvar( "SYSISPF" ) = "ACTIVE" then, address ISPEXEC "CONTROL DISPLAY REFRESH" exit /*@ HELP */ /* . ----------------------------------------------------------------- */ BRANCH: Procedure expose, /*@ */ sigl exec_name rc = trace( "O" ) /* we do not want to see this */ arg brparm . origin = sigl /* where was I called from ? */ do currln = origin to 1 by -1 /* inch backward to label */ if Right( Word( Sourceline( currln ),1 ),1 ) = ":" then do parse value sourceline( currln ) with pgfname ":" /* Label */ leave ; end /* name */ end /* currln */ select when brparm = "NAME" then return( pgfname ) /* full name */ when brparm = "ID" then do /* wants the prefix */ parse var pgfname pgfpref "_" . /* get the prefix */ return( pgfpref ) end /* brparm = "ID" */ otherwise say left( sigl,6 ) left( pgfname,40 ) , exec_name "Time:" time( "L" ) end /* select */ return /*@ BRANCH */ /* . ----------------------------------------------------------------- */ DUMP_QUEUE: /*@ Take whatever is in stack */ rc = trace( "O" ) /* and write to the screen */ address TSO arg mode . "QSTACK" /* how many stacks? */ stk2dump = rc - tk_init_stacks /* remaining stacks */ if stk2dump = 0 & queued() = 0 then return if mode <> "QUIET" then, say "Total Stacks" rc , /* rc = #of stacks */ " Begin Stacks" tk_init_stacks , /* Stacks present at start */ " Excess Stacks to dump" stk2dump do dd = rc to tk_init_stacks by -1 /* empty each one. */ if mode <> "QUIET" then, say "Processing Stack #" dd " Total Lines:" queued() do queued();parse pull line;say line;end /* pump to the screen */ "DELSTACK" /* remove stack */ end /* dd = 1 to rc */ return /*@ DUMP_QUEUE */ /* Handle CLIST-form keywords added 20020513 . ----------------------------------------------------------------- */ CLKWD: Procedure expose info /*@ hide all except info */ arg kw kw = kw"(" /* form is 'KEY(DATA)' */ kw_pos = Pos( kw,info ) /* find where it is, maybe */ if kw_pos = 0 then return "" /* send back a null, not found*/ rtpt = Pos( '5d40'x,info" ",kw_pos ) /* locate end-paren */ slug = Substr( info,kw_pos,rtpt-kw_pos+1 ) /* isolate */ info = Delstr( info,kw_pos,rtpt-kw_pos+1 ) /* excise */ parse var slug (kw) slug /* drop kw */ slug = Reverse( Substr( Reverse( Strip( slug ) ),2 ) ) return slug /*@CLKWD */ /* Handle multi-word keys 20020513 . ----------------------------------------------------------------- */ KEYWD: Procedure expose info /*@ hide all vars, except info*/ arg kw kw_pos = wordpos( kw,info ) /* find where it is, maybe */ if kw_pos = 0 then return "" /* send back a null, not found*/ kw_val = word( info,kw_pos+Words( kw ) ) /* get the next word */ info = Delword( info,kw_pos,2 ) /* remove both */ return kw_val /*@ KEYWD */ /* . ----------------------------------------------------------------- */ KEYPHRS: Procedure expose, /*@ */ info helpmsg exec_name /* except these three */ arg kp wp = wordpos( kp,info ) /* where is it? */ if wp = 0 then return "" /* not found */ front = subword( info,1,wp-1 ) /* everything before kp */ back = subword( info,wp+1 ) /* everything after kp */ parse var back dlm back /* 1st token must be 2 bytes */ if length( dlm ) <> 2 then /* Must be two bytes */ helpmsg = helpmsg, "Invalid length for delimiter( "dlm" ) with KEYPHRS( "kp" )", info if wordpos( dlm,back ) = 0 then /* search for ending delimiter*/ helpmsg = helpmsg, "No matching second delimiter( "dlm" ) with KEYPHRS( "kp" )", info if helpmsg <> "" then call HELP /* Something is wrong */ parse var back kpval (dlm) back /* get everything b/w delim */ info = front back /* restore remainder */ return Strip( kpval ) /*@ KEYPHRS */ /* . ----------------------------------------------------------------- */ NOVALUE: /*@ */ say exec_name "raised NOVALUE at line" sigl say " " say "The referenced variable is" condition( "D" ) say " " zsigl = sigl signal SHOW_SOURCE /*@ NOVALUE */ /* . ----------------------------------------------------------------- */ SHOW_SOURCE: /*@ */ call DUMP_QUEUE /* Spill contents of stacks -*/ if sourceline() <> "0" then /* to screen */ say sourceline( zsigl ) rc = trace( "?R" ) nop exit /*@ SHOW_SOURCE */ /* . ----------------------------------------------------------------- */ SS: Procedure /*@ Show Source */ arg ssbeg ssend . if ssend = "" then ssend = 10 if \datatype( ssbeg,"W" ) | \datatype( ssend,"W" ) then return ssend = ssbeg + ssend do ssii = ssbeg to ssend ; say Strip( sourceline( ssii ),'T' ) end return /*@ SS */ /* . ----------------------------------------------------------------- */ SWITCH: Procedure expose info /*@ */ arg kw sw_val = Wordpos( kw,info ) > 0 /* exists = 1; not found = 0 */ if sw_val then /* exists */ info = Delword( info,Wordpos( kw,info ),1 ) /* remove it */ return sw_val /*@ SWITCH */ /* . ----------------------------------------------------------------- */ SYNTAX: /*@ */ errormsg = exec_name "encountered REXX error" rc "in line" sigl":", errortext( rc ) say errormsg zsigl = sigl signal SHOW_SOURCE /*@ SYNTAX */ /* Can call TRAPOUT. . ----------------------------------------------------------------- */ TOOLKIT_INIT: /*@ */ address TSO info = Strip( opts,'T','5d'x ) /* clip trailing paren */ parse source sys_id how_invokt exec_name DD_nm DS_nm, as_invokt cmd_env addr_spc usr_tokn parse value "" with tv helpmsg . parse value 0 "ISR00000 YES" "Error-Press PF1" with, sw. zerrhm zerralrm zerrsm if SWITCH( "TRAPOUT" ) then do "TRAPOUT" exec_name parms "(( TRACE R" info exit end /* trapout */ sw.0nested = sysvar( "SYSNEST" ) = "YES" sw.0batch = sysvar( "SYSENV" ) = "BACK" sw.0inispf = sysvar( "SYSISPF" ) = "ACTIVE" parse value KEYWD( "TRACE" ) "N" with tv . if Word( parms,1 ) = "?" then call HELP /* I won't be back */ "QSTACK" ; tk_init_stacks = rc /* How many stacks? */ parse value SWITCH( "BRANCH" ) , SWITCH( "MONITOR" ) , SWITCH( "NOUPDT" ) with, branch monitor noupdt . parse value mvsvar( "SYSNAME" ) sysvar( "SYSNODE" ) with, #tk_cpu node . tk_globalvars = "exec_name tv helpmsg sw. zerrhm zerralrm ", "zerrsm zerrlm tk_init_stacks branch monitor ", "noupdt" call LOCAL_PREINIT /* for more opts -*/ return /*@ TOOLKIT_INIT */