From 3f1ea48182ef0972e3df162a446cbcbbfc1e2a4e Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Sat, 1 Jul 2017 22:15:02 -0400
Subject: Synthesize directory listings when necessary

Now we need to base the git contents off of dat/pools/snaps/
---
 bin/poolify | 43 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/bin/poolify b/bin/poolify
index e33821b..48dc828 100755
--- a/bin/poolify
+++ b/bin/poolify
@@ -23,6 +23,47 @@ main() {
 		ln -sr "$filedir/$filepart" "$snapdir"
 	done < "$1"
 
+	echo '# Pass 1.5'
+	# Looking at the data, there are 3 revisions that we DON'T
+	# have directory listings for.  So we need to synthesize
+	# those.
+	#
+	# I created the list of listings to synthesize by not
+	# synthesizing anything, then looking for files ending in
+	# ".1".  They are created during pass 2 if we have a file with
+	# no matching listing.
+	while read -r datetime dirpart newfiles; do
+		# We need to figure out which files to put in the
+		# directory listing.  We're going to do that by
+		# mimicking the previous listing with that dirpart.
+		prevsnap=''
+		for isnap in dat/pools/snaps/*-"${dirpart//\//_}"; do
+			isnap=${isnap##*/}
+			if [[ "${isnap%%-*}" -lt "${datetime}00" ]]; then
+				prevsnap=$isnap
+			fi
+		done
+		if [[ -z "$prevsnap" ]]; then
+			>& printf 'Could not find listing of %s before %s\n' "$dirpart" "$datetime"
+			false
+		fi
+		# Ok, now copy that snapshot
+		snapdir=dat/pools/snaps/"${datetime}00-${dirpart//\//_}"
+		cp -aT dat/pools/snaps/"$prevsnap" "$snapdir"
+		# And touch file files we need to change
+		for filepart in $newfiles; do
+			name="$dirpart/$filepart"
+			filedir=dat/pools/files/"${datetime}-${name//\//_}"
+			mkdir -p -- "$filedir"
+			rm -- "$snapdir/$filepart"
+			ln -sr "$filedir/$filepart" "$snapdir"
+		done
+	done < <(printf '%s\n' \
+			'200303310700 PROGRAMS/CVTUTF     ConvertUTF.c ConvertUTF.h harness.c' \
+			'200307291500 ALPHA/CVTUTF-1-1    ExpectedOutput.txt readme.txt' \
+			'200412210100 PROGRAMS/CVTUTF.OLD CVTUTF7.C CVTUTF7.H' \
+		)
+
 	echo '# Pass 2'
 	while read -r time url; do
 		name="${url##*/Public/}"
@@ -44,7 +85,7 @@ main() {
 			fi
 		done
 		if [[ -z "$mypool" ]]; then
-			>&2 printf 'Could not find pool for %s %s' "$time" "$url"
+			>&2 printf 'Could not find pool for %s %s\n' "$time" "$url"
 			false
 		fi
 
-- 
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