Ensure unique file names

docs/assets/fractals/abstract/_info.yaml

@@ -1,20 +1,20 @@
 fractals:
-- file: abstract2
+- file: ominous-bubbles
   name: Ominous Bubbles
   year: 2021
   tags: [D1, Colour, New]
-- file: abstract3
+- file: branching-balls
   name: Branching Balls
   year: 2021
   tags: [Z1, Colour, New]
-- file: abstract4
+- file: angel
   name: Angel
   year: 2021
   tags: [Z1, B&W, New]
-- file: abstract6
+- file: herd
   name: Fractal Herd
   tags: [D1, Monochrome, New]
-- file: cross
+- file: minkowski-cross
   name: Cross
   tags: [Z4, Colour, Variation]
   links:

docs/assets/fractals/curves/_info.yaml

@@ -1,5 +1,5 @@
 fractals:
-- file: koch
+- file: koch-curve
   name: Koch Curve
   year: 2021
   dimension: log(4) / log(3)
@@ -24,15 +24,15 @@ fractals:
     url: https://en.wikipedia.org/wiki/Dragon_curve#Heighway_dragon
   - name: Larry Scott > Heighway Dragon
     url: https://larryriddle.agnesscott.org/ifs/heighway/heighway.htm
-- file: golden
+- file: golden-dragon
   name: Golden Dragon Curve
   year: 2021
   dimension: phi
   tags: [Z1, B&W, Known]
   links:
   - name: Larry Riddle > Golden Dragon
     url: https://larryriddle.agnesscott.org/ifs/heighway/goldenDragon.htm
-- file: golden2
+- file: golden
   name: Golden
   tags: [Z1, Monochrome, Variation]
 - file: twindragon

docs/assets/fractals/hexagons/_info.yaml

@@ -1,5 +1,5 @@
 fractals:
-- file: sierpinski
+- file: sierpinski-hexagon
   name: Sierpiński Hexagon
   dimension: log(6) / log(3)
   tags: [D6, B&W, Known, Tile]
@@ -19,7 +19,7 @@ fractals:
 - file: sierpinski-rotated-shaded
   name: Rotated Shaded Sierpinski Hexagon
   tags: [D6, Monochrome, Variation, Tile]
-- file: koch
+- file: koch-snowflake
   name: Koch Snowflake
   year: 2021
   dimension: 2

docs/assets/fractals/linear/_info.yaml

@@ -12,8 +12,8 @@ fractals:
 - file: powerlines
   name: Power Lines
   tags: [Z1, Colour, New]
-- file: dots
-  name: Dots
+- file: ruler
+  name: Ruler
   tags: [D2, Grey, New]
 - file: circles
   name: Circles

docs/assets/fractals/pentagons/_info.yaml

@@ -8,7 +8,7 @@ fractals:
     url: https://en.wikipedia.org/wiki/N-flake#Pentaflake
   - name: Larry Riddle > Durer's Pentagons
     url: https://larryriddle.agnesscott.org/ifs/pentagon/Durer.htm
-- file: sierpinski
+- file: sierpinski-pentagon
   name: Sierpiński Pentagon
   year: 2021
   dimension: log(5) / log(1 + phi)
@@ -21,7 +21,7 @@ fractals:
 - file: rotated-pentaflake
   name: Rotated Pentaflake
   tags: [D5, B&W, Known]
-- file: rotated-sierpinski
+- file: rotated-pentagons
   name: Rotated Sierpiński Pentagon
   dimension: log(5) / log(1 + phi)
   tags: [D5, B&W, Known]

docs/assets/fractals/spirals/_info.yaml

@@ -12,7 +12,7 @@ fractals:
 - file: fire
   name: Fire Spiral
   tags: [Z3, Colour, Inspired]
-- file: golden
+- file: golden-spiral
   name: Golden Spiral
   tags: [Z1, Colour, Inspired]
 - file: blossom

docs/assets/fractals/squares/_info.yaml

@@ -1,5 +1,5 @@
 fractals:
-- file: sierpinski
+- file: sierpinski-carpet
   name: Sierpiński Carpet
   year: 2021
   description: >-
@@ -72,7 +72,7 @@ fractals:
   name: Fractal Castle
   dimension: log(8) / log(3)
   tags: [D1, B&W, Variation]
-- file: cross
+- file: jerusalem-cross
   name: Jerusalem Cross
   dimension: log((sqrt(2) - 1) / 2) / log(sqrt(2) - 1)
   tags: [D4, Monochrome, Known, Tile]
@@ -90,7 +90,7 @@ fractals:
 - file: distorted
   name: Distorted Carpet
   tags: [D2, Monochrome, Variation]
-- file: dots
+- file: coloured-dots
   name: Dots
   tags: [D2, Colour, Inspired, Tile]
 - file: window

docs/assets/fractals/triangles/_info.yaml

@@ -1,6 +1,6 @@
 fractals:
-- file: sierpinski
-  name: Sierpiński Triangle
+- file: sierpinski-gasket
+  name: Sierpiński Gasket
   year: 2021
   description: >-
     The classic Sierpiński Gasket (triangle)
@@ -26,7 +26,7 @@ fractals:
 - file: rgb
   name: Colour shaded Sierpiński Triangle
   tags: [Z1, Colour, Variation, Tile]
-- file: circles
+- file: circle-triangle
   name: Sierpiński Triangle made of circles
   tags: [D3, Grey, Variation]
 - file: cmy
@@ -56,8 +56,8 @@ fractals:
   name: Alternating Sierpinski Triangle
   dimension: 2
   tags: [D3, B&W, Inspired, Tile]
-- file: rotated-sierpinski
-  name: Rotated Sierpiński
+- file: rotated-triangles
+  name: Rotated Sierpiński Triangle
   tags: [D3, Grey, Inspired]
 - file: triflake
   name: Triflake

scripts/tasks.clj

@@ -221,7 +221,13 @@
                   :tag-groups
                   (mapcat :tags)
                   (map :name)
-                  frequencies)]
+                  frequencies)
+        files (->> info
+                   :fractals
+                   (map #(select-keys % [:file :category :name]))
+                   (group-by :file)
+                   (filter #(> (count (val %)) 1))
+                   seq)]
     (when (> nils 1)
       (throw (ex-info "There should only be one unnamed tag group" {:num nils})))
     (when-let [dup-tags (->> tags
@@ -232,7 +238,9 @@
             :let [bad-tags (seq (remove tags (:tags frac)))]
             :when bad-tags]
       (throw (ex-info "Fractal has unknown tags" (assoc (select-keys frac [:name :file :category :tags])
-                                                        :bad-tags bad-tags)))))
+                                                        :bad-tags bad-tags))))
+    (when files
+      (throw (ex-info "Duplicate filenames" {:files files}))))
   info)
 
 (defn read-info