pldnotify.awk

   1 #!/bin/awk -f
   2 # $Revision$, $Date$
   3 # TODO: "SourceXDownload" support (use given URLs if present instead of cut-down SourceX URLs)
   4
   5 function fixedsub(s1,s2,t,      ind) {
   6 # substitutes fixed strings (not regexps)
   7         if (ind = index(t,s1)) {
   8                 t = substr(t, 1, ind-1) s2 substr(t, ind+length(s1))
   9         }
  10         return t
  11 }
  12
  13 function ispre(s) {
  14         if ((s~"pre")||(s~"PRE")||(s~"beta")||(s~"BETA")||(s~"alpha")||(s~"ALPHA")||(s~"rc")||(s~"RC")) {
  15                 if (DEBUG) print "pre-version"
  16                 return 1
  17         } else {
  18                 return 0
  19         }
  20 }
  21
  22 function compare_ver(v1,v2) {
  23 # compares version numbers
  24         while (match(v1,/[a-zA-Z][0-9]|[0-9][a-zA-Z]/))
  25                 v1=(substr(v1,1,RSTART) "." substr(v1,RSTART+RLENGTH-1))
  26         while (match(v2,/[a-zA-Z][0-9]|[0-9][a-zA-Z]/))
  27                 v2=(substr(v2,1,RSTART) "." substr(v2,RSTART+RLENGTH-1))
  28         sub("^0*","",v1)
  29         sub("^0*","",v2)
  30         gsub("\.0*",".",v1)
  31         gsub("\.0*",".",v2)
  32         if (DEBUG) print "v1 == " v1
  33         if (DEBUG) print "v2 == " v2
  34         count=split(v1,v1a,"\.")
  35         count2=split(v2,v2a,"\.")
  36
  37         if (count<count2) mincount=count
  38         else mincount=count2
  39
  40         for (i=1; i<=mincount; i++) {
  41                 if (v1a[i]=="") v1a[i]=0
  42                 if (v2a[i]=="") v2a[i]=0
  43                 if (DEBUG) print "i == " i
  44                 if (DEBUG) print "v1[i] == " v1a[i]
  45                 if (DEBUG) print "v2[i] == " v2a[i]
  46                 if ((v1a[i]~/[0-9]/)&&(v2a[i]~/[0-9]/)) {
  47                         if (length(v2a[i])>length(v1a[i]))
  48                                 return 1
  49                         else if (v2a[i]>v1a[i])
  50                                 return 1
  51                         else if (length(v1a[i])>length(v2a[i]))
  52                                 return 0
  53                         else if (v1a[i]>v2a[i])
  54                                 return 0
  55                 } else if ((v1a[i]~/[A-Za-z]/)&&(v2a[i]~/[A-Za-z]/)) {
  56                         if (v2a[i]>v1a[i])
  57                                 return 1
  58                         else if (v1a[i]>v2a[i])
  59                                 return 0
  60                 } else if (ispre(v1a[i]) == 1)
  61                         return 1
  62                 else
  63                         return 0
  64         }
  65         if ((count2==mincount)&&(count!=count2)) {
  66                 for (i=count2+1; i<=count; i++)
  67                         if (ispre(v1a[i]) == 1)
  68                                 return 1
  69                 return 0
  70         } else if (count!=count2) {
  71                 for (i=count+1; i<=count2; i++)
  72                         if (ispre(v2a[i]) == 1)
  73                                 return 0
  74                 return 1
  75         }
  76         return 0
  77 }
  78
  79 function compare_ver_dec(v1,v2) {
  80 # compares version numbers as decimal floats
  81         while (match(v1,/[0-9][a-zA-Z]/))
  82                 v1=(substr(v1,1,RSTART) "." substr(v1,RSTART+RLENGTH-1))
  83         while (match(v2,/[0-9][a-zA-Z]/))
  84                 v2=(substr(v2,1,RSTART) "." substr(v2,RSTART+RLENGTH-1))
  85         sub("^0*","",v1)
  86         sub("^0*","",v2)
  87         if (DEBUG) print "v1 == " v1
  88         if (DEBUG) print "v2 == " v2
  89         count=split(v1,v1a,"\.")
  90         count2=split(v2,v2a,"\.")
  91
  92         if (count<count2) mincount=count
  93         else mincount=count2
  94
  95         for (i=1; i<=mincount; i++) {
  96                 if (v1a[i]=="") v1a[i]=0
  97                 if (v2a[i]=="") v2a[i]=0
  98                 if (DEBUG) print "i == " i
  99                 if (DEBUG) print "v1[i] == " v1a[i]
 100                 if (DEBUG) print "v2[i] == " v2a[i]
 101                 if ((v1a[i]~/[0-9]/)&&(v2a[i]~/[0-9]/)) {
 102                         if (i==2) {
 103                                 if (0+("." v2a[i])>0+("." v1a[i]))
 104                                         return 1
 105                                 else if (0+("." v1a[i])>0+("." v2a[i]))
 106                                         return 0
 107                         } else {
 108                                 if (length(v2a[i])>length(v1a[i]))
 109                                         return 1
 110                                 else if (v2a[i]>v1a[i])
 111                                         return 1
 112                                 else if (length(v1a[i])>length(v2a[i]))
 113                                         return 0
 114                                 else if (v1a[i]>v2a[i])
 115                                         return 0
 116                         }
 117                 } else if ((v1a[i]~/[A-Za-z]/)&&(v2a[i]~/[A-Za-z]/)) {
 118                         if (v2a[i]>v1a[i])
 119                                 return 1
 120                         else if (v1a[i]>v2a[i])
 121                                 return 0
 122                 } else if (ispre(v1a[i]) == 1)
 123                         return 1
 124                 else
 125                         return 0
 126         }
 127         if ((count2==mincount)&&(count!=count2)) {
 128                 for (i=count2+1; i<=count; i++)
 129                         if (ispre(v1a[i]) == 1)
 130                                 return 1
 131                 return 0
 132         } else if (count!=count2) {
 133                 for (i=count+1; i<=count2; i++)
 134                         if (ispre(v2a[i]) == 1)
 135                                 return 0
 136                 return 1
 137         }
 138         return 0
 139 }
 140
 141 function get_links(url, errno,link,oneline,retval,odp,tmpfile) {
 142 # get all <A HREF=..> tags from specified URL
 143         "mktemp /tmp/XXXXXX" | getline tmpfile
 144         close("mktemp /tmp/XXXXXX")
 145
 146         if (DEBUG) print "Retrieving: " url
 147         errno=system("wget -O - \"" url "\" -t 3 -T 300 --passive-ftp > " tmpfile " 2>/dev/null" )
 148
 149         if (errno==0) {
 150                 while (getline oneline < tmpfile)
 151                         odp=(odp " " oneline)
 152                 if ( DEBUG ) print "Odpowiedz: " odp
 153         }
 154
 155         close(tmpfile)
 156         system("rm -f " tmpfile)
 157         urldir=url;
 158         sub(/[^\/]+$/,"",urldir)
 159         if ( errno==0) {
 160                 while ((tolower(odp) ~ /<frame[ \t]/)||(tolower(odp) ~ /href=/)) {
 161                         if (tolower(odp) ~ /<frame[ \t]/) {
 162                                 match(tolower(odp),/<frame[ \t][^>]*>/)
 163                                 ramka=substr(odp,RSTART,RLENGTH)
 164                                 odp=substr(odp,1,RSTART) substr(odp,RSTART+RLENGTH)
 165                                 sub(/[sS][rR][cC]=[ \t]*/,"src=",ramka);
 166                                 match(ramka,/src="[^"]+"/)
 167                                 newurl=substr(ramka,RSTART+5,RLENGTH-6)
 168                                 if (DEBUG) print "Ramka: " newurl
 169                                 if (newurl !~ /\//) {
 170                                         newurl=(urldir newurl)
 171                                         if (DEBUG) print "Ramka->: " newurl
 172                                 }
 173                                 retval=(retval " " get_links(newurl))
 174                         } else if (tolower(odp) ~ /href=[ \t]*"[^"]*"/) {
 175                                 sub(/[hH][rR][eE][fF]=[ \t]*"/,"href=\"",odp)
 176                                 match(odp,/href="[^"]*"/)
 177                                 link=substr(odp,RSTART,RLENGTH)
 178                                 odp=substr(odp,1,RSTART) substr(odp,RSTART+RLENGTH)
 179                                 link=substr(link,7,length(link)-7)
 180                                 retval=(retval " " link)
 181                                 if (DEBUG) print "href(\"\"): " link
 182                         } else if (tolower(odp) ~ /href=[ \t]*'[^']*'/) {
 183                                 sub(/[hH][rR][eE][fF]=[ \t]*'/,"href='",odp)
 184                                 match(odp,/href='[^']*'/)
 185                                 link=substr(odp,RSTART,RLENGTH)
 186                                 odp=substr(odp,1,RSTART) substr(odp,RSTART+RLENGTH)
 187                                 link=substr(link,7,length(link)-7)
 188                                 retval=(retval " " link)
 189                                 if (DEBUG) print "href(''): " link
 190                         } else if (tolower(odp) ~ /href=[ \t]*[^ \t>]*/) {
 191                                 sub(/[hH][rR][eE][fF]=[ \t]*/,"href=",odp)
 192                                 match(odp,/href=[^ \t>]*/)
 193                                 link=substr(odp,RSTART,RLENGTH)
 194                                 odp=substr(odp,1,RSTART) substr(odp,RSTART+RLENGTH)
 195                                 link=substr(link,6,length(link)-5)
 196                                 retval=(retval " " link)
 197                                 if (DEBUG) print "href(): " link
 198                         } else {
 199                                 retval=(retval " INTERNAL_ERROR")
 200                                 break
 201                         }
 202                 }
 203         } else {
 204                 retval=("WGET ERROR: " errno)
 205         }
 206
 207
 208         if (DEBUG) print "Zwracane: " retval
 209         return retval
 210 }
 211
 212 function subst_defines(var,defs) {
 213 # substitute all possible RPM macros
 214         while ((var ~ /%{.*}/) || (var ~ /%[A-Za-z0-9_]+/)) {
 215                 oldvar=var
 216                 for (j in defs) {
 217                         gsub("%{" j "}", defs[j], var)
 218                         gsub("%" j , defs[j], var)
 219                 }
 220                 if (var==oldvar) {
 221                         if ( DEBUG ) for (i in defs) print i " == " defs[i]
 222                         return var
 223                 }
 224         }
 225         return var
 226 }
 227
 228 function find_mirror(url) {
 229
 230         while (succ = (getline line < "mirrors")) {
 231             if (succ==-1) { return url }
 232                 nf=split(line,fields,"|")
 233                 if (nf>1){
 234                         origin=fields[1]
 235                         mirror=fields[2]
 236                         mname=fields[3]
 237                         prefix=substr(url,1,length(origin))
 238                         if (prefix==origin){
 239                                 if ( DEBUG ) print "Mirror znaleziony na " mname
 240                                 close("mirrors")
 241                                 return mirror substr(url,length(origin)+1)
 242                         }
 243                 }
 244         }
 245
 246         return url
 247 }
 248
 249 function process_source(number,lurl,name,version) {
 250 # fetches file list, and compares version numbers
 251         if ( DEBUG ) print "Przetwarzam " lurl
 252
 253         if ( index(lurl,version)==0 ) {
 254                 if (DEBUG) print "Nie ma numeru wersji."
 255                 return 0
 256         }
 257
 258         sub("://",":",lurl)
 259         sub("/",":/",lurl)
 260         gsub("[^/]*$",":&",lurl)
 261         split(lurl,url,":")
 262         acc=url[1]
 263         host=url[2]
 264         dir=url[3]
 265         filename=url[4]
 266
 267         if (index(dir,version)) {
 268                 dir=substr(dir,1,index(dir,version)-1)
 269                 sub("[^/]*$","",dir)
 270                 sub("(\.tar\.(bz|bz2|gz)|zip)$","",filename)
 271                 if ( DEBUG ) print "Sprawdze katalog: " dir
 272                 if ( DEBUG ) print "i plik: " filename
 273         }
 274
 275         filenameexp=filename
 276         gsub("\+","\\+",filenameexp)
 277         sub(version,"[A-Za-z0-9.]+",filenameexp)
 278         gsub("\.","\\.",filenameexp)
 279         if ( DEBUG ) print "Wzorzec: " filenameexp
 280         match(filename,version)
 281         prever=substr(filename,1,RSTART-1)
 282         postver=substr(filename,RSTART+RLENGTH)
 283         if ( DEBUG ) print "Przed numerkiem: " prever
 284         if ( DEBUG ) print "i po: " postver
 285         newurl=find_mirror(acc "://" host dir)
 286         #print acc "://" host dir
 287         #newurl=url[1]"://"url[2]url[3]url[4]
 288         #newurl=acc "://" host dir filename
 289         if ( DEBUG ) print "Zagl±dam na " newurl
 290
 291         references=0
 292         finished=0
 293         oldversion=version
 294         odp=get_links(newurl)
 295         if( odp ~ "ERROR: ") {
 296                 print name "(" number ") " odp
 297         } else {
 298                 if (DEBUG) print "Sciagnieta strona"
 299                 c=split(odp,linki)
 300                 for (nr=1; nr<=c; nr++) {
 301                         addr=linki[nr]
 302                         if (DEBUG) print "Znaleziony link: " addr
 303                         if ((addr ~ filenameexp) && !(addr ~ "[-_.0-9A-Za-z~]" filenameexp)) {
 304                                 match(addr,filenameexp)
 305                                 newfilename=substr(addr,RSTART,RLENGTH)
 306                                 if (DEBUG) print "Hipotetyczny nowy: " newfilename
 307                                 newfilename=fixedsub(prever,"",newfilename)
 308                                 newfilename=fixedsub(postver,"",newfilename)
 309                                 if (DEBUG) print "Wersja: " newfilename
 310                                 if (newfilename ~ /\.(pkg|bin|binary|built)$/) continue
 311                                 if (NUMERIC) {
 312                                         if ( compare_ver_dec(version, newfilename)==1 ) {
 313                                                 if (DEBUG) print "Tak, jest nowa"
 314                                                 version=newfilename
 315                                                 finished=1
 316                                         }
 317                                 } else if ( compare_ver(version, newfilename)==1 ) {
 318                                         if (DEBUG) print "Tak, jest nowa"
 319                                         version=newfilename
 320                                         finished=1
 321                                 }
 322                         }
 323                 }
 324                 if (finished==0)
 325                         print name "(" number ") seems ok: " oldversion
 326                 else
 327                         print name "(" number ") [OLD] " oldversion " [NEW] " version
 328         }
 329 }
 330
 331 function process_data(name,ver,rel,src) {
 332 # this function checks if substitutions were valid, and if true:
 333 # processes each URL and tries to get current file list
 334         for (i in src) {
 335                 if ( src[i] !~ /%{.*}/ && src[i] !~ /%[A-Za-z0-9_]/ )  {
 336                         if ( DEBUG ) print "Zrodlo: " src[i]
 337                         process_source(i,src[i],name,ver)
 338                 } else {
 339                         print FNAME ":" i ": niemozliwe podstawienie: " src[i]
 340                 }
 341         }
 342 }
 343
 344 BEGIN {
 345         # if U want to use DEBUG, run script with "-v DEBUG=1"
 346         # or uncomment the line below
 347         # DEBUG = 1
 348
 349         errno=system("wget --help > /dev/null 2>&1")
 350         if (errno) {
 351                 print "No wget installed!"
 352                 exit 1
 353         }
 354         if (ARGC>=3 && ARGV[2]=="-n") {
 355                 NUMERIC=1
 356                 for (i=3; i<ARGC; i++) ARGV[i-1]=ARGV[i]
 357                 ARGC=ARGC-1
 358         }
 359 }
 360
 361 FNR==1 {
 362         if ( ARGIND != 1 ) {
 363                 process_data(NAME,VER,REL,SRC)
 364                 NAME="" ; VER="" ; REL=""
 365                 for (i in DEFS) delete DEFS[i]
 366                 for (i in SRC) delete SRC[i]
 367         }
 368         FNAME=FILENAME
 369 }
 370
 371 /^[Uu][Rr][Ll]:/&&(URL=="") { URL=subst_defines($2,DEFS) ; DEFS["url"]=URL }
 372 /^[Nn]ame:/&&(NAME=="") { NAME=subst_defines($2,DEFS) ; DEFS["name"]=NAME }
 373 /^[Vv]ersion:/&&(VER=="") { VER=subst_defines($2,DEFS) ; DEFS["version"]=VER }
 374 /^[Rr]elease:/&&(REL=="") { REL=subst_defines($2,DEFS) ; DEFS["release"]=REL }
 375 /^[Ss]ource[0-9]*:/ { if (/(ftp|http):\/\//) SRC[FNR]=subst_defines($2,DEFS) }
 376 /%define/ { DEFS[$2]=subst_defines($3,DEFS) }
 377
 378 END {
 379         process_data(NAME,VER,REL,SRC)
 380 }