src/symlinks: Add working version

2 files changed, 46 insertions, 0 deletions

diff --git a/deps.mk b/deps.mk
index 73c8e1b..49c90a3 100644
--- a/deps.mk
+++ b/deps.mk
@@ -12,4 +12,5 @@ libexec.sh = \
 	src/links \
 	src/snippets \
 	src/sortdata \
+	src/symlinks \
 
diff --git a/src/symlinks b/src/symlinks
new file mode 100755
index 0000000..4796c9c
--- /dev/null
+++ b/src/symlinks
@@ -0,0 +1,45 @@
+#!/bin/sh
+set -euo pipefail
+
+
+usage() {
+	echo 'Usage: symlinks FILENAME.txt'
+}
+
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME.txt')"
+
+
+
+filter() {
+	awk '$1 != "" && $2 != "" && $3 == "" && $1 != "#"'
+}
+
+getdirs() {
+	awk '
+	n = split($1, seg, "/") {
+		dir = substr($1, 1, length($1) - length(seg[n]))
+		print dir
+	}' | grep . | sort | uniq | sed 's/^/mkdir -p /'
+}
+
+gencommands() {
+	awk '
+	n = split($1, seg, "/") {
+		printf "ln -fs "
+		for (i = 0; i < n - 1; i++) {
+			printf "../"
+		}
+		printf "%s %s\n", $2, $1
+	}'
+}
+
+asignorelist() {
+	cut -f1 | sort | uniq | sed 's|^|/|'
+}
+
+
+
+cat -- "$FILENAME" | filter | getdirs     | tee /dev/stderr | sh
+cat -- "$FILENAME" | filter | gencommands | tee /dev/stderr | sh
+cat -- "$FILENAME" | filter | asignorelist