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|
#!/bin/sh
mirror=ftp://cpan.pair.com
path=/modules/02packages.details.txt.gz
curl --silent $mirror$path | gzip -dc | awk '
NR < 10 { next }
{
file = a[split($3, a, "/")]
len = split(file, a, ".")
if (!match(a[1], /[-_][vV]?[0-9]+$/)) {
print "error: failed to grok " $3 | "cat 1>&2"
next
}
ver = substr(file, RSTART+1, RLENGTH-1)
dist = substr(file, 1, RSTART-1)
for (i=2; i<=len; i++) {
if (a[i] !~ /^[0-9]/) break
ver = ver "." a[i]
}
sub(/^[vV]/, "", ver)
if (lessthan(dists[dist], ver)) {
dists[dist] = ver
paths[dist] = $3
}
}
END {
for (dist in dists) print dist, dists[dist], paths[dist] | "sort"
}
function lessthan (l, r)
{
return decver(l) < decver(r)
}
function decver (vs)
{
pcnt = gsub(/[.]/, ".", vs)
if (pcnt < 2) return vs
len = split(vs, vc, ".")
dec = vc[1]
for (i=2; i<=len; i++) dec += (10 ^ (-i * 3)) * vc[i]
return dec
}
'
|
