From 1b503c72b417fcbdbed3888a6a2367417500584e Mon Sep 17 00:00:00 2001
From: Lars Windolf <lars.windolf@gmx.de>
Date: Thu, 7 Sep 2023 00:03:17 +0200
Subject: [PATCH] Add df notebook

---
 frontend/notebooks/{arp.md => arp.nb}         |   0
 frontend/notebooks/{default.md => default.nb} |   0
 frontend/notebooks/df.nb                      | 331 ++++++++++++++++++
 frontend/notebooks/{systemd.md => systemd.nb} |   0
 4 files changed, 331 insertions(+)
 rename frontend/notebooks/{arp.md => arp.nb} (100%)
 rename frontend/notebooks/{default.md => default.nb} (100%)
 create mode 100644 frontend/notebooks/df.nb
 rename frontend/notebooks/{systemd.md => systemd.nb} (100%)

diff --git a/frontend/notebooks/arp.md b/frontend/notebooks/arp.nb
similarity index 100%
rename from frontend/notebooks/arp.md
rename to frontend/notebooks/arp.nb
diff --git a/frontend/notebooks/default.md b/frontend/notebooks/default.nb
similarity index 100%
rename from frontend/notebooks/default.md
rename to frontend/notebooks/default.nb
diff --git a/frontend/notebooks/df.nb b/frontend/notebooks/df.nb
new file mode 100644
index 0000000..992ff3f
--- /dev/null
+++ b/frontend/notebooks/df.nb
@@ -0,0 +1,331 @@
+# %% [markdown]
+## Disk Usage Debugging
+# %% [markdown]
+### Directory Usage Overview
+
+The following command lists directory sorted by size. You might want to modify the `-maxdepth 2` parameter for different details. **Note that this command can run for quite some time!**
+# %%--- [shell]
+# properties:
+#   bottom_hidden: true
+# ---%%
+cd /usr/share; (find . -maxdepth 3 -type d ! -name "." -print0 | xargs -0 -n1 du -sm | sort -nr ) 2>/dev/null
+# %%--- [html]
+# properties:
+#   run_on_load: true
+#   top_hidden: true
+# ---%%
+Visualize: 
+<button onclick="createRadialGraph(2 /* 3rd cell as input */, 'graph')">Radial Graph</button>
+<button onclick="createTreeMap(2 /* 3rd cell as input */, 'graph')">Tree Map</button>
+<div id='graph'/>
+# %%--- [esm]
+# properties:
+#   run_on_load: true
+# ---%%
+import * as d3 from "https://cdn.jsdelivr.net/npm/d3@7/+esm";
+
+function createTreeMap(nr, id) {
+  const data = getData(nr);
+  
+  // Specify the chart’s dimensions.
+  const width = 928;
+  const height = 924;
+
+  // This custom tiling function adapts the built-in binary tiling function
+  // for the appropriate aspect ratio when the treemap is zoomed-in.
+  function tile(node, x0, y0, x1, y1) {
+    d3.treemapBinary(node, 0, 0, width, height);
+    for (const child of node.children) {
+      child.x0 = x0 + child.x0 / width * (x1 - x0);
+      child.x1 = x0 + child.x1 / width * (x1 - x0);
+      child.y0 = y0 + child.y0 / height * (y1 - y0);
+      child.y1 = y0 + child.y1 / height * (y1 - y0);
+    }
+  }
+
+  // Compute the layout.
+  const hierarchy = d3.hierarchy(data)
+    .sum(d => d.value)
+    .sort((a, b) => b.value - a.value);
+  const root = d3.treemap().tile(tile)(hierarchy);
+
+  // Create the scales.
+  const x = d3.scaleLinear().rangeRound([0, width]);
+  const y = d3.scaleLinear().rangeRound([0, height]);
+
+  // Formatting utilities.
+  const format = d3.format(",d");
+  const name = d => d.ancestors().reverse().map(d => d.data.name).join("/");
+
+  // Create the SVG container.
+  const svg = d3.create("svg")
+      .attr("viewBox", [0.5, -30.5, width, height + 30])
+      .attr("width", width)
+      .attr("height", height + 30)
+      .attr("style", "max-width: 100%; height: auto;")
+      .style("font", "10px sans-serif");
+
+  // Display the root.
+  let group = svg.append("g")
+      .call(render, root);
+
+  function render(group, root) {
+    const node = group
+      .selectAll("g")
+      .data(root.children.concat(root))
+      .join("g");
+
+    node.filter(d => d === root ? d.parent : d.children)
+        .attr("cursor", "pointer")
+        .on("click", (event, d) => d === root ? zoomout(root) : zoomin(d));
+
+    node.append("title")
+        .text(d => `${name(d)}\n${format(d.value)}`);
+
+    node.append("rect")
+        .attr("id", d => (d.leafUid = uid("leaf")).id)
+        .attr("fill", d => d === root ? "#fff" : d.children ? "#ccc" : "#ddd")
+        .attr("stroke", "#fff");
+
+    node.append("clipPath")
+        .attr("id", d => (d.clipUid = uid("clip")).id)
+      .append("use")
+        .attr("xlink:href", d => d.leafUid.href);
+
+    node.append("text")
+        .attr("clip-path", d => d.clipUid)
+        .attr("font-weight", d => d === root ? "bold" : null)
+      .selectAll("tspan")
+      .data(d => (d === root ? name(d) : d.data.name).split(/(?=[A-Z][^A-Z])/g).concat(format(d.value)))
+      .join("tspan")
+        .attr("x", 3)
+        .attr("y", (d, i, nodes) => `${(i === nodes.length - 1) * 0.3 + 1.1 + i * 0.9}em`)
+        .attr("fill-opacity", (d, i, nodes) => i === nodes.length - 1 ? 0.7 : null)
+        .attr("font-weight", (d, i, nodes) => i === nodes.length - 1 ? "normal" : null)
+        .text(d => d);
+
+    group.call(position, root);
+  }
+
+  function position(group, root) {
+    group.selectAll("g")
+        .attr("transform", d => d === root ? `translate(0,-30)` : `translate(${x(d.x0)},${y(d.y0)})`)
+      .select("rect")
+        .attr("width", d => d === root ? width : x(d.x1) - x(d.x0))
+        .attr("height", d => d === root ? 30 : y(d.y1) - y(d.y0));
+  }
+
+  // When zooming in, draw the new nodes on top, and fade them in.
+  function zoomin(d) {
+    const group0 = group.attr("pointer-events", "none");
+    const group1 = group = svg.append("g").call(render, d);
+
+    x.domain([d.x0, d.x1]);
+    y.domain([d.y0, d.y1]);
+
+    svg.transition()
+        .duration(750)
+        .call(t => group0.transition(t).remove()
+          .call(position, d.parent))
+        .call(t => group1.transition(t)
+          .attrTween("opacity", () => d3.interpolate(0, 1))
+          .call(position, d));
+  }
+
+  // When zooming out, draw the old nodes on top, and fade them out.
+  function zoomout(d) {
+    const group0 = group.attr("pointer-events", "none");
+    const group1 = group = svg.insert("g", "*").call(render, d.parent);
+
+    x.domain([d.parent.x0, d.parent.x1]);
+    y.domain([d.parent.y0, d.parent.y1]);
+
+    svg.transition()
+        .duration(750)
+        .call(t => group0.transition(t).remove()
+          .attrTween("opacity", () => d3.interpolate(1, 0))
+          .call(position, d))
+        .call(t => group1.transition(t)
+          .call(position, d.parent));
+  }
+
+  document.getElementById(id).replaceChildren(svg.node());
+}
+
+function createRadialGraph(nr, id) {
+  const data = getData(nr);
+
+  // Specify the chart’s dimensions.
+  const width = 928;
+  const height = width;
+  const radius = width / 6;
+
+  // Create the color scale.
+  const color = d3.scaleOrdinal(d3.quantize(d3.interpolateRainbow, data.children.length + 1));
+
+  // Compute the layout.
+  const hierarchy = d3.hierarchy(data)
+      .sum(d => d.value)
+      .sort((a, b) => b.value - a.value);
+  const root = d3.partition()
+      .size([2 * Math.PI, hierarchy.height + 1])
+    (hierarchy);
+  root.each(d => d.current = d);
+
+  // Create the arc generator.
+  const arc = d3.arc()
+      .startAngle(d => d.x0)
+      .endAngle(d => d.x1)
+      .padAngle(d => Math.min((d.x1 - d.x0) / 2, 0.005))
+      .padRadius(radius * 1.5)
+      .innerRadius(d => d.y0 * radius)
+      .outerRadius(d => Math.max(d.y0 * radius, d.y1 * radius - 1))
+
+  // Create the SVG container.
+  const svg = d3.create("svg")
+      .attr("viewBox", [-width / 2, -height / 2, width, width])
+      .style("font", "10px sans-serif");
+
+  // Append the arcs.
+  const path = svg.append("g")
+    .selectAll("path")
+    .data(root.descendants().slice(1))
+    .join("path")
+      .attr("fill", d => { while (d.depth > 1) d = d.parent; return color(d.data.name); })
+      .attr("fill-opacity", d => arcVisible(d.current) ? (d.children ? 0.6 : 0.4) : 0)
+      .attr("pointer-events", d => arcVisible(d.current) ? "auto" : "none")
+
+      .attr("d", d => arc(d.current));
+
+  // Make them clickable if they have children.
+  path.filter(d => d.children)
+      .style("cursor", "pointer")
+      .on("click", clicked);
+
+  const format = d3.format(",d");
+  path.append("title")
+      .text(d => `${d.ancestors().map(d => d.data.name).reverse().join("/")}\n${format(d.value)}`);
+
+  const label = svg.append("g")
+      .attr("pointer-events", "none")
+      .attr("text-anchor", "middle")
+      .style("user-select", "none")
+    .selectAll("text")
+    .data(root.descendants().slice(1))
+    .join("text")
+      .attr("dy", "0.35em")
+      .attr("fill-opacity", d => +labelVisible(d.current))
+      .attr("transform", d => labelTransform(d.current))
+      .text(d => d.data.name);
+
+  const parent = svg.append("circle")
+      .datum(root)
+      .attr("r", radius)
+      .attr("fill", "none")
+      .attr("pointer-events", "all")
+      .on("click", clicked);
+
+  // Handle zoom on click.
+  function clicked(event, p) {
+    parent.datum(p.parent || root);
+
+    root.each(d => d.target = {
+      x0: Math.max(0, Math.min(1, (d.x0 - p.x0) / (p.x1 - p.x0))) * 2 * Math.PI,
+      x1: Math.max(0, Math.min(1, (d.x1 - p.x0) / (p.x1 - p.x0))) * 2 * Math.PI,
+      y0: Math.max(0, d.y0 - p.depth),
+      y1: Math.max(0, d.y1 - p.depth)
+    });
+
+    const t = svg.transition().duration(750);
+
+    // Transition the data on all arcs, even the ones that aren’t visible,
+    // so that if this transition is interrupted, entering arcs will start
+    // the next transition from the desired position.
+    path.transition(t)
+        .tween("data", d => {
+          const i = d3.interpolate(d.current, d.target);
+          return t => d.current = i(t);
+        })
+      .filter(function(d) {
+        return +this.getAttribute("fill-opacity") || arcVisible(d.target);
+      })
+        .attr("fill-opacity", d => arcVisible(d.target) ? (d.children ? 0.6 : 0.4) : 0)
+        .attr("pointer-events", d => arcVisible(d.target) ? "auto" : "none") 
+
+        .attrTween("d", d => () => arc(d.current));
+
+    label.filter(function(d) {
+        return +this.getAttribute("fill-opacity") || labelVisible(d.target);
+      }).transition(t)
+        .attr("fill-opacity", d => +labelVisible(d.target))
+        .attrTween("transform", d => () => labelTransform(d.current));
+  }
+  
+  function arcVisible(d) {
+    return d.y1 <= 3 && d.y0 >= 1 && d.x1 > d.x0;
+  }
+
+  function labelVisible(d) {
+    return d.y1 <= 3 && d.y0 >= 1 && (d.y1 - d.y0) * (d.x1 - d.x0) > 0.03;
+  }
+
+  function labelTransform(d) {
+    const x = (d.x0 + d.x1) / 2 * 180 / Math.PI;
+    const y = (d.y0 + d.y1) / 2 * radius;
+    return `rotate(${x - 90}) translate(${y},0) rotate(${x < 180 ? 0 : 180})`;
+  }
+
+  document.getElementById(id).replaceChildren(svg.node());
+};
+
+function uid(prefix) {
+  return { id: prefix + Date.now().toString(36) + Math.random().toString(36).substring(2) };
+}
+
+function getData(nr) {
+  // input data will be lines of "<path> <size in MB>"
+  let data = {name: ".", children: []};
+  let pathByName = {};	// lookup hash for insertion
+  getCellOutput(nr).split(/\n/).forEach((line) => {
+    function createParents(dir) {   
+      let d, name;
+      
+      if(pathByName[dir])
+          return pathByName[dir];
+      
+      if(-1 == dir.indexOf('/')) {
+        d = data;
+        name = dir;
+      } else {
+        let m, parentDir;
+        [m, parentDir, name] = dir.match(/(.+)\/([^\/]+)/);
+        d = createParents(parentDir);
+      }
+      
+      return pathByName[dir] = d.children[d.children.push({name: name, children: []}) - 1];
+    }
+
+    try {
+      let path = line.split(/\s+/, 2)[1];
+      if("" !== path) {
+      	let d, name, m = path.match(/\.\/(.+)\/([^\/]+)/);
+        if(m) {
+            d = createParents(m[1]);
+            name = m[2];
+        } else {
+          	d = data;
+        	name = path.splice(2, path.length);   // FIXME: broken
+      	}
+        
+        d.children.push({ name: name, value: line.split(/\s+/, 2)[0]});
+      }
+    } catch(e) {
+      console.error(`Invalid line: ${line} (${e})`);
+    };
+  });
+
+  return data;
+}
+
+window.createRadialGraph = createRadialGraph;
+window.createTreeMap = createTreeMap;
\ No newline at end of file
diff --git a/frontend/notebooks/systemd.md b/frontend/notebooks/systemd.nb
similarity index 100%
rename from frontend/notebooks/systemd.md
rename to frontend/notebooks/systemd.nb