76 lines
1.9 KiB
Awk
Executable File
76 lines
1.9 KiB
Awk
Executable File
#!/bin/awk -f
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function _printhelp() {
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print "Usage: hsync [-vr=1] SOURCE TARGET\n"
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print "Filesystem Hierarchy synchronizer."
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print "Move files in TARGET identical to files in SOURCE such that they follow the same hierarchy."
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print "Symlinks are ignored."
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print "Set 'r' to 1 to actually run the process."
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}
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BEGIN {
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if (ARGC != 3)
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{
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_printhelp()
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exit
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}
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## Array subindices
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dup=1
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print "==> Scanning " ARGV[1] "..."
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while ( ("cd " ARGV[1] " && find * -type f -exec md5sum {} +" | getline ) > 0)
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{
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## We need to remove sum from line since filename may contain spaces.
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sum=$1
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sub(/[^ ]+ /, "")
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if (source[sum])
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{
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print ":: Skipping duplicate: " $0
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source[sum, dup]=1
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continue
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}
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source[sum]=$0
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}
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print "\n==> Scanning " ARGV[2] "..."
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while ( ("cd " ARGV[2] " && find * -type f -exec md5sum {} +" | getline ) > 0)
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{
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sum=$1
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if (source[sum, dup] || ! source[sum])
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continue
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sub(/[^ ]+ /, "")
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if (target[sum])
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{
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print ":: Skipping duplicate: " $0
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target[sum, dup]=1
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continue
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}
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target[sum]=$0
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}
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print "\n==> Syncing hierarchy from " ARGV[1] " to " ARGV[2]
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for (i in target)
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{
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split(i, subi, SUBSEP)
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if (subi[2] != dup && ! target[subi[1],dup] && source[subi[1]] != target[subi[1]])
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{
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dirname=source[subi[1]]
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sub(/[^/]+$/, "", dirname)
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## Target -> Source
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change="'" ARGV[2] "/" target[subi[1]] "' '" ARGV[2] "/" source[subi[1]] "'"
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## We only create a new folder if necessary.
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cmd="[ ! -d '" dirname "' ] && mkdir -p \"" ARGV[2] "/" dirname "\" && mv -n " change
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## TODO: sort preview.
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print change
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if (r)
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system(cmd)
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}
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}
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}
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