refactor(tools): move clone.sh into tools and drop the hardcoded path

The raw directory came from a literal /home/boris path, so the pool couldonly be harvested on one machine. It now takes the directory as anargument or from CALIB_RAW.Repositories stay unpinned on purpose: builds are reproducible from thecommitted pool, not from these clones, and fresher upstream code isbetter material. What was missing was the record, so clone-manifest.tsvnow carries the commit, its date and the licence for each repository.

clone.sh

@@ -1,41 +0,0 @@
-#!/usr/bin/env bash
-# Shallow-clone permissively licensed source repos for the calibration corpus.
-RAW=/home/boris/.cache/calib-build/raw
-mkdir -p "$RAW"
-
-# name|url  (licenses verified post-clone from each repo's LICENSE file)
-REPOS="
-three.js|https://github.com/mrdoob/three.js
-drei|https://github.com/pmndrs/drei
-react-three-fiber|https://github.com/pmndrs/react-three-fiber
-gl-matrix|https://github.com/toji/gl-matrix
-webgpu-samples|https://github.com/webgpu/webgpu-samples
-webgl-fundamentals|https://github.com/gfxfundamentals/webgl-fundamentals
-thebookofshaders|https://github.com/patriciogonzalezvivo/thebookofshaders
-webgl-noise|https://github.com/stegu/webgl-noise
-pixijs|https://github.com/pixijs/pixijs
-tween.js|https://github.com/tweenjs/tween.js
-glTF-Sample-Viewer|https://github.com/KhronosGroup/glTF-Sample-Viewer
-ripgrep|https://github.com/BurntSushi/ripgrep
-serde|https://github.com/serde-rs/serde
-fmt|https://github.com/fmtlib/fmt
-json-cpp|https://github.com/nlohmann/json
-requests|https://github.com/psf/requests
-flask|https://github.com/pallets/flask
-vite|https://github.com/vitejs/vite
-"
-
-echo "$REPOS" | grep -v '^$' | while IFS='|' read -r name url; do
-  echo "$name $url"
-done | xargs -P 6 -n 2 bash -c '
-  RAW=/home/boris/.cache/calib-build/raw
-  if [ -d "$RAW/$0/.git" ]; then echo "SKIP $0"; exit 0; fi
-  rm -rf "$RAW/$0"
-  if git clone --depth 1 --single-branch --quiet "$1" "$RAW/$0" 2>/dev/null; then
-    echo "OK   $0  $(du -sh "$RAW/$0" | cut -f1)"
-  else
-    echo "FAIL $0  $1"
-  fi
-'
-echo "=== DONE ==="
-du -sh "$RAW"

tools/clone.sh

@@ -0,0 +1,127 @@
+#!/usr/bin/env bash
+# Shallow-clone the repositories the calibration pool is harvested from.
+#
+#   bash tools/clone.sh                  # into $CALIB_RAW, or ./raw
+#   bash tools/clone.sh /path/to/raw
+#   JOBS=12 bash tools/clone.sh /mnt/big/raw
+#
+# Nothing is pinned. Repositories move forward and that is wanted: fresher
+# upstream code is better calibration material. Builds are already reproducible
+# from the committed pool, not from these clones, so freezing them would buy
+# nothing and cost freshness.
+#
+# What does matter is knowing what you got. clone-manifest.tsv records the
+# commit and its date for every repository, and harvest.py copies that into the
+# provenance of each unit it creates.
+
+set -u
+
+RAW="${1:-${CALIB_RAW:-$PWD/raw}}"
+JOBS="${JOBS:-6}"
+
+# name | url | licence
+#
+# The licence column is not decoration. harvest.py reads this manifest and
+# refuses to put anything into the pool whose licence is not permissive.
+# thebookofshaders is all-rights-reserved: it is cloned so its structure can be
+# inspected, and it must never reach pool/.
+REPOS="
+three.js|https://github.com/mrdoob/three.js|MIT
+drei|https://github.com/pmndrs/drei|MIT
+react-three-fiber|https://github.com/pmndrs/react-three-fiber|MIT
+gl-matrix|https://github.com/toji/gl-matrix|MIT
+webgpu-samples|https://github.com/webgpu/webgpu-samples|BSD-3-Clause
+webgl-fundamentals|https://github.com/gfxfundamentals/webgl-fundamentals|BSD-3-Clause
+thebookofshaders|https://github.com/patriciogonzalezvivo/thebookofshaders|ALL-RIGHTS-RESERVED
+webgl-noise|https://github.com/stegu/webgl-noise|MIT
+pixijs|https://github.com/pixijs/pixijs|MIT
+tween.js|https://github.com/tweenjs/tween.js|MIT
+glTF-Sample-Viewer|https://github.com/KhronosGroup/glTF-Sample-Viewer|Apache-2.0
+ripgrep|https://github.com/BurntSushi/ripgrep|MIT
+serde|https://github.com/serde-rs/serde|MIT
+fmt|https://github.com/fmtlib/fmt|MIT
+json-cpp|https://github.com/nlohmann/json|MIT
+requests|https://github.com/psf/requests|Apache-2.0
+flask|https://github.com/pallets/flask|BSD-3-Clause
+vite|https://github.com/vitejs/vite|MIT
+"
+
+TOTAL=$(echo "$REPOS" | grep -c '|')
+PARTS="$RAW/.manifest.d"
+
+echo "target    : $RAW"
+echo "repos     : $TOTAL"
+echo "parallel  : $JOBS"
+echo
+
+mkdir -p "$PARTS" || { echo "cannot write to $RAW"; exit 1; }
+rm -f "$PARTS"/*.tsv
+
+export RAW PARTS
+
+# One repository. Clones it if absent, fast-forwards it if present, then writes
+# a single manifest line. Each worker writes its own file, so parallel runs
+# cannot interleave inside a line.
+clone_one() {
+    name=$1
+    url=$2
+    lic=$3
+    dst="$RAW/$name"
+
+    if [ -d "$dst/.git" ]; then
+        if git -C "$dst" fetch --depth 1 -q origin 2>/dev/null \
+        && git -C "$dst" reset -q --hard FETCH_HEAD 2>/dev/null; then
+            state=updated
+        else
+            state=STALE
+        fi
+    else
+        rm -rf "$dst"
+        if git clone --depth 1 --single-branch -q "$url" "$dst" 2>/dev/null; then
+            state=cloned
+        else
+            state=FAILED
+        fi
+    fi
+
+    if [ "$state" = "FAILED" ]; then
+        printf '%-22s %-9s %s\n' "$name" "$state" "$url"
+        return
+    fi
+
+    sha=$(git -C "$dst" rev-parse HEAD 2>/dev/null)
+    when=$(git -C "$dst" log -1 --format=%cs 2>/dev/null)
+    size=$(du -sh "$dst" 2>/dev/null | cut -f1)
+
+    printf '%s\t%s\t%s\t%s\t%s\n' "$name" "$url" "$lic" "${sha:0:12}" "$when" \
+        > "$PARTS/$name.tsv"
+    printf '%-22s %-9s %-14s %-12s %s\n' "$name" "$state" "${sha:0:12}" "$when" "$size"
+}
+export -f clone_one
+
+printf '%-22s %-9s %-14s %-12s %s\n' repo state commit date size
+printf '%-22s %-9s %-14s %-12s %s\n' ---- ----- ------ ---- ----
+
+echo "$REPOS" | grep '|' | tr '|' '\n' \
+    | xargs -P "$JOBS" -n 3 bash -c 'clone_one "$0" "$1" "$2"'
+
+{
+    printf '# repo\turl\tlicence\tcommit\tcommit_date\n'
+    printf '# cloned %s\n' "$(date -u +%Y-%m-%dT%H:%M:%SZ)"
+    cat "$PARTS"/*.tsv 2>/dev/null | sort
+} > "$RAW/clone-manifest.tsv"
+rm -rf "$PARTS"
+
+GOT=$(grep -vc '^#' "$RAW/clone-manifest.tsv")
+echo
+echo "$GOT of $TOTAL repositories on disk, $(du -sh "$RAW" 2>/dev/null | cut -f1)"
+echo "manifest: $RAW/clone-manifest.tsv"
+
+if [ "$GOT" -lt "$TOTAL" ]; then
+    echo
+    echo "Some repositories are missing. Rerun this script: the ones already"
+    echo "here are fast-forwarded rather than recloned, so a retry is cheap."
+fi
+
+echo
+echo "next:  python tools/harvest.py --raw $RAW --wiki <wiki-dir>"