114 lines
3.9 KiB
Bash
Executable file
114 lines
3.9 KiB
Bash
Executable file
#!/bin/sh
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# 20260228 ChatGPT
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# $Header$
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#
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# This script creates links from the staging directory to
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# the glbs sibling directory. The staging directory is where the glbs are staged for rendering.
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# The glbs sibling directory is where the PNG & webP batch renderer expects to find the glbs. The files names
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# are sanitized to be filesystem safe and to avoid collisions by adding the path components
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# delimited by double underscores.
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# If a collision is detected, a numeric suffix is added to disambiguate.
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# Consequently, the name of the link is not the same as the original glb, but contains the original path
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# components in a sanitized form. This allows the batch renderer to process all the glbs without worrying
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# about name collisions, while still retaining some traceability to the original files.
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#
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# For example, if the staging directory contains:
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# /home/jlpoole/work/Voron/test1/Klicky-Probe/Printers/Voron/v1.8_v2.4_Legacy_Trident/v1.8_v2.4_Legacy_Trident_STL/Dock_mount_fixed_v2.glb
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# then this script will create the very long file name:
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# glbs/Klicky-Probe__Printers__Voron__...__Dock_mount_fixed_v2.stl.glb
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#
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# Note: the brackets in a file name, e.g. "[a]" are preserved.
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# Another example, if the staging directory contains:
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# /home/jlpoole/work/Voron/test1/Voron/Skirts/[a]_belt_guard_a_x2.stl.glb
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# then this script will create the file name:
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# 'Voron-2__STLs__Skirts__[a]_belt_guard_a_x2.stl.glb'
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#
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# Copy/paste:
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# cd ~/work/Voron/renderlab/web/batch_glb_png
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# chmod +x link_glbs.sh
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# ./link_glbs.sh /home/jlpoole/work/Voron/test1
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#
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# This creates symlinks under ./glbs/ pointing to every *.glb under the staging directory.
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set -eu
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ROOT="${1:-}"
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[ -n "$ROOT" ] || { echo "Usage: $0 /path/to/root" >&2; exit 2; }
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[ -d "$ROOT" ] || { echo "ERROR: not a directory: $ROOT" >&2; exit 2; }
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OUTDIR="./glbs"
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mkdir -p "$OUTDIR"
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ts="$(date +%Y%m%d_%H%M%S)"
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log="link_glbs_${ts}.log"
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# Make ROOT absolute and strip any trailing slash for consistent relpath math.
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ROOT_ABS="$(cd "$ROOT" && pwd)"
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ROOT_ABS="${ROOT_ABS%/}"
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echo "ROOT: $ROOT_ABS" | tee "$log"
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echo "OUTDIR: $(cd "$OUTDIR" && pwd)" | tee -a "$log"
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echo "LOG: $log" | tee -a "$log"
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echo "" | tee -a "$log"
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# Sanitize: turn a path into a filesystem-safe basename.
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# Example:
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# Klicky-Probe/Printers/Voron/.../Dock_mount_fixed_v2.stl.glb
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# becomes:
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# Klicky-Probe__Printers__Voron__...__Dock_mount_fixed_v2.stl.glb
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sanitize() {
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# shellcheck disable=SC2001
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echo "$1" \
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| sed 's|^/||' \
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| sed 's|/|__|g'
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#| sed 's|/|__|g' \
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#| sed 's|[^A-Za-z0-9._-]|_|g'
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}
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count=0
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skipped=0
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collisions=0
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# Use -print0 to handle spaces safely.
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find "$ROOT_ABS" -type f -name '*.glb' -print0 \
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| while IFS= read -r -d '' f; do
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# Compute relative path under ROOT_ABS
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rel="${f#$ROOT_ABS/}"
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name="$(sanitize "$rel")"
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linkpath="$OUTDIR/$name"
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# If the link exists and points to the same target, skip quietly.
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if [ -L "$linkpath" ]; then
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target="$(readlink "$linkpath" || true)"
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if [ "$target" = "$f" ]; then
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echo "SKIP (already linked): $linkpath -> $f" >> "$log"
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skipped=$((skipped+1))
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continue
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fi
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fi
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# If the name already exists but points elsewhere, disambiguate.
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if [ -e "$linkpath" ]; then
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i=1
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base="$linkpath"
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while [ -e "$linkpath" ]; do
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linkpath="${base%.glb}_$i.glb"
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i=$((i+1))
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done
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collisions=$((collisions+1))
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fi
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ln -s "$f" "$linkpath"
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echo "LINK: $linkpath -> $f" >> "$log"
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count=$((count+1))
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done
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# The while loop runs in a subshell in many /bin/sh implementations,
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# so counters above may not update. Summarize by counting log lines instead.
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linked_lines="$(grep -c '^LINK: ' "$log" 2>/dev/null || echo 0)"
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skipped_lines="$(grep -c '^SKIP ' "$log" 2>/dev/null || echo 0)"
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echo "" | tee -a "$log"
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echo "DONE. linked=$linked_lines skipped=$skipped_lines (details in $log)" | tee -a "$log"
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