27 lines
850 B
Plaintext
Executable File
27 lines
850 B
Plaintext
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell -i bash
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set -e
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cpto="$1"
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cpfrom="$2"
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cpOverwrite() {
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# -f flag in case the destination perms were set to 000
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# --no-dereference in case the destination already exists as a symlink
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# however, "no-dereference" has the edge case of copying `cpfrom` to `cpto`
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# when `cpto` already exists as a symlink to `cpfom`:
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# "cp: <cpto> and <cpfrom> are the same file"
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# use `--remove-destination` for that
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cp --no-dereference -f "$cpfrom" "$cpto" \
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|| cp --no-dereference --remove-destination "$cpfrom" "$cpto"
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}
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cpNoOverwrite() {
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# --no-dereference in case the destination already exists as a symlink.
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# it will still follow directory-level intermediate symlinks: just not a leaf symlink
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cp --no-clobber --no-dereference "$cpfrom" "$cpto" || test -f "$cpto"
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}
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cpNoOverwrite
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