Merge branch 'cirrus-20240904' into 'main'

[mirror_linux-firmware.git] / copy-firmware.sh

diff --git a/copy-firmware.sh b/copy-firmware.sh
index 7b276e271cfafcc58a75077d693764cd3cd27907..6757c6ce03a3086816ce95b0085c281a9afaaf26 100755 (executable)
--- a/copy-firmware.sh
+++ b/copy-firmware.sh
@@ -5,26 +5,144 @@
 #
 
 verbose=:
-if [ x"$1" = x"-v" ]; then
-    verbose=echo
-    shift
+prune=no
+# shellcheck disable=SC2209
+compress=cat
+compext=
+skip_dedup=0
+
+while test $# -gt 0; do
+    case $1 in
+        -v | --verbose)
+            # shellcheck disable=SC2209
+            verbose=echo
+            shift
+            ;;
+
+        -P | --prune)
+            prune=yes
+            shift
+            ;;
+
+        --xz)
+            if test "$compext" = ".zst"; then
+                echo "ERROR: cannot mix XZ and ZSTD compression"
+                exit 1
+            fi
+            compress="xz --compress --quiet --stdout --check=crc32"
+            compext=".xz"
+            shift
+            ;;
+
+        --zstd)
+            if test "$compext" = ".xz"; then
+                echo "ERROR: cannot mix XZ and ZSTD compression"
+                exit 1
+            fi
+            # shellcheck disable=SC2209
+            compress="zstd --compress --quiet --stdout"
+            compext=".zst"
+            shift
+            ;;
+
+        --ignore-duplicates)
+            skip_dedup=1
+            shift
+            ;;
+
+        -*)
+            if test "$compress" = "cat"; then
+                echo "ERROR: unknown command-line option: $1"
+                exit 1
+            fi
+            compress="$compress $1"
+            shift
+            ;;
+        *)
+            if test "x$destdir" != "x"; then
+                echo "ERROR: unknown command-line options: $*"
+                exit 1
+            fi
+
+            destdir="$1"
+            shift
+            ;;
+    esac
+done
+
+if [ -z "$destdir" ]; then
+       echo "ERROR: destination directory was not specified"
+       exit 1
 fi
 
-destdir="$1"
+if ! command -v rdfind >/dev/null; then
+       if [ "$skip_dedup" != 1 ]; then
+               echo "ERROR: rdfind is not installed.  Pass --ignore-duplicates to skip deduplication"
+               exit 1
+       fi
+fi
 
-grep '^File:' WHENCE | sed -e's/^File: *//g' -e's/"//g' | while read f; do
+# shellcheck disable=SC2162 # file/folder name can include escaped symbols
+grep -E '^(RawFile|File):' WHENCE | sed -E -e 's/^(RawFile|File): */\1 /;s/"//g' | while read k f; do
     test -f "$f" || continue
-    $verbose "copying file $f"
-    mkdir -p $destdir/$(dirname "$f")
-    cp -d "$f" $destdir/"$f"
+    install -d "$destdir/$(dirname "$f")"
+    $verbose "copying/compressing file $f$compext"
+    if test "$compress" != "cat" && test "$k" = "RawFile"; then
+        $verbose "compression will be skipped for file $f"
+        cat "$f" > "$destdir/$f"
+    else
+        $compress "$f" > "$destdir/$f$compext"
+    fi
 done
 
-grep -E '^Link:' WHENCE | sed -e's/^Link: *//g' -e's/-> //g' | while read f d; do
-    test -L "$f" || continue
-    test -f "$destdir/$f" && continue
-    $verbose "copying link $f"
-    mkdir -p $destdir/$(dirname "$f")
-    cp -d "$f" $destdir/"$f"
+if [ "$skip_dedup" != 1 ] ; then
+       $verbose "Finding duplicate files"
+       rdfind -makesymlinks true -makeresultsfile false "$destdir" >/dev/null
+       find "$destdir" -type l | while read -r l; do
+               target="$(realpath "$l")"
+               $verbose "Correcting path for $l"
+               ln -fs "$(realpath --relative-to="$(dirname "$(realpath -s "$l")")" "$target")" "$l"
+       done
+fi
+
+# shellcheck disable=SC2162 # file/folder name can include escaped symbols
+grep -E '^Link:' WHENCE | sed -e 's/^Link: *//g;s/-> //g' | while read f d; do
+    if test -L "$f$compext"; then
+        test -f "$destdir/$f$compext" && continue
+        $verbose "copying link $f$compext"
+        install -d "$destdir/$(dirname "$f")"
+        cp -d "$f$compext" "$destdir/$f$compext"
+
+        if test "x$d" != "x"; then
+            target="$(readlink "$f")"
+
+            if test "x$target" != "x$d"; then
+                $verbose "WARNING: inconsistent symlink target: $target != $d"
+            else
+                if test "x$prune" != "xyes"; then
+                    $verbose "WARNING: unneeded symlink detected: $f"
+                else
+                    $verbose "WARNING: pruning unneeded symlink $f"
+                    rm -f "$f$compext"
+                fi
+            fi
+        else
+            $verbose "WARNING: missing target for symlink $f"
+        fi
+    else
+        directory="$destdir/$(dirname "$f")"
+        install -d "$directory"
+        target="$(cd "$directory" && realpath -m -s "$d")"
+        if test -d "$target"; then
+            $verbose "creating link $f -> $d"
+            ln -s "$d" "$destdir/$f"
+        else
+            $verbose "creating link $f$compext -> $d$compext"
+            ln -s "$d$compext" "$destdir/$f$compext"
+        fi
+    fi
 done
 
 exit 0
+
+# vim: et sw=4 sts=4 ts=4