tenseleyflow/ndotfiles / 280bdf6

+## Hardlink every regular file from SRC to DST (non-recursive; includes dotfiles, skips dirs)

+#

+function hardlink_all --description "Hardlink every file from SRC to DST (includes dotfiles, skips dirs)"

+    set -l USAGE "Usage: hardlink_all SRC DST\n\nLinks: regular files only (top-level). Includes dotfiles. Creates DST if missing.\nNote: Hardlinks must be on the same filesystem."

+

+    if test (count $argv) -lt 1 -o "$argv[1]" = "-h" -o "$argv[1]" = "--help"

+        echo -e $USAGE

+        return 0

+    end

+

+    if test (count $argv) -ne 2

+        echo -e $USAGE >&2

+        return 1

+    end

+

+    set -l src "$argv[1]"

+    set -l dst "$argv[2]"

+

+    if not test -d "$src"

+        echo "hardlink_all: SRC is not a directory: $src" >&2

+        return 1

+    end

+

+    # Ensure destination directory exists

+    mkdir -p "$dst" ^/dev/null

+    if not test -d "$dst"

+        echo "hardlink_all: failed to create DST: $dst" >&2

+        return 1

+    end

+

+    # Best-effort filesystem check (hardlinks can't cross filesystems)

+    set -l srcfs (df -P "$src" | tail -1 | awk '{print $1}')

+    set -l dstfs (df -P "$dst" | tail -1 | awk '{print $1}')

+    if test -n "$srcfs" -a -n "$dstfs" -a "$srcfs" != "$dstfs"

+        echo "hardlink_all: SRC and DST are on different filesystems ($srcfs ≠ $dstfs); hardlinks will fail." >&2

+        return 1

+    end

+

+    set -l count 0

+    set -l fail 0

+

+    # Top-level files, including dotfiles; exclude '.' and '..'

+    set -l files  $src/*

+    set -l dot1   $src/.[!.]*

+    set -l dot2   $src/..?*

+

+    for f in $files $dot1 $dot2

+        if test -f "$f"

+            ln -f "$f" "$dst/"; or begin

+                echo "hardlink_all: failed to link: $f" >&2

+                set fail 1

+            end

+            set count (math $count + 1)

+        end

+    end

+

+    if test $count -eq 0

+        echo "hardlink_all: nothing to link (no regular files found in $src)."

+    else

+        echo "hardlink_all: linked $count file(s) from $src → $dst"

+    end

+

+    return $fail

+end