From 6af424ea20392be0487ec204591c93b0c65d4cb2 Mon Sep 17 00:00:00 2001
From: "Luke T. Shumaker" <lukeshu@lukeshu.com>
Date: Sat, 14 Oct 2023 18:41:45 -0600
Subject: poolify: Improve readability

---
 bin/poolify | 48 ++++++++++++++++++++++++++++++------------------
 1 file changed, 30 insertions(+), 18 deletions(-)

diff --git a/bin/poolify b/bin/poolify
index e256157..649b71b 100755
--- a/bin/poolify
+++ b/bin/poolify
@@ -13,14 +13,27 @@ main() {
 	set -euE -o pipefail
 	shopt -s nullglob
 
-	echo '# Pass 1'
-	declare -A rewrite
-	rewrite[200109261739]=200303310700
-	while read -r snap name date time size; do
+	arg_metadata_txt=$1
+	arg_index_txt=$2
+
+	# Overrides ############################################################
+
+	declare -A override_datetime
+	override_datetime[200109261739]=200303310700
+
+	override_synthetic_listings=(
+		#YYYYMMDDHHMM branch_name         newfiles
+		'200307291500 ALPHA/CVTUTF-1-1    ExpectedOutput.txt readme.txt'
+	)
+
+	# Main #################################################################
+
+	echo '# Pass 1 (initialize snapshots from $arg_metadata_txt)'
+	while read -r snap name date time; do
 		dirpart="${name%/*}"
 		filepart="${name##*/}"
 		datetime="${date//-/}${time//:/}"
-		datetime="${rewrite[$datetime]:-$datetime}"
+		datetime="${override_datetime[$datetime]:-$datetime}"
 		filedir=dat/pools/files/"${datetime}-${name//\//_}"
 		snapdir=dat/pools/snaps/"${snap}-${dirpart//\//_}"
 		if [[ -d "${filedir/.OLD/}" ]]; then
@@ -28,9 +41,9 @@ main() {
 		fi
 		mkdir -p -- "$filedir" "$snapdir"
 		ln -sr "$filedir/$filepart" "$snapdir"
-	done < "$1"
+	done < "$arg_metadata_txt"
 
-	echo '# Pass 1.5'
+	echo '# Pass 1.5 (initialize synthetic snapshots)'
 	# Looking at the data, there are 3 revisions that we DON'T
 	# have directory listings for.  So we need to synthesize
 	# those.
@@ -39,7 +52,8 @@ main() {
 	# 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
+	for line in "${override_synthetic_listings[@]}"; do
+		read -r datetime dirpart newfiles <<<"$line"
 		# 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.
@@ -65,12 +79,14 @@ main() {
 			rm -- "$snapdir/$filepart"
 			ln -sr "$filedir/$filepart" "$snapdir"
 		done
-	done < <(printf '%s\n' \
-			'200307291500 ALPHA/CVTUTF-1-1    ExpectedOutput.txt readme.txt' \
-		)
+	done
 
-	echo '# Pass 2'
+	echo '# Pass 2 (resolve files)'
 	while read -r time url; do
+		if [[ "$url" == */ ]]; then
+			# Skip directories
+			continue
+		fi
 		if [[ "$url" == */2.0-Update/* ]]; then
 			# Gross hack
 			continue
@@ -79,10 +95,6 @@ main() {
 		dirpart="${name%/*}"
 		filepart="${name##*/}"
 
-		if [[ -z "$filepart" ]]; then
-			continue
-		fi
-
 		pools=(dat/pools/files/*-"${name//\//_}")
 		if [[ "$name" = *.OLD* ]]; then
 			pname="${name//\//_}"
@@ -119,9 +131,9 @@ main() {
 			fi
 			i+=1
 		done
-	done < "$2"
+	done < "$arg_index_txt"
 
-	echo '# Pass 3'
+	echo '# Pass 3 (resolve missing files)'
 	while read -r missing; do
 		if [[ -f "${missing/.OLD}/${missing##*_}" ]]; then
 			ln -sr "${missing/.OLD}/${missing##*_}" "$missing"
-- 
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