/* 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; */ 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; say "" ex_nam = Left(exec_name,8) /* predictable size */ 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) /* Return 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(") ",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",")") /* 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" 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 . parse value KEYWD("TRACE") "N" with tv . 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 */