diff options
Diffstat (limited to 'pkgs/build-support/setup-hooks/make-symlinks-relative.sh')
-rw-r--r-- | pkgs/build-support/setup-hooks/make-symlinks-relative.sh | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/pkgs/build-support/setup-hooks/make-symlinks-relative.sh b/pkgs/build-support/setup-hooks/make-symlinks-relative.sh new file mode 100644 index 000000000000..0608d3ca81c4 --- /dev/null +++ b/pkgs/build-support/setup-hooks/make-symlinks-relative.sh @@ -0,0 +1,28 @@ +fixupOutputHooks+=(_makeSymlinksRelative) + +# For every symlink in $output that refers to another file in $output +# ensure that the symlink is relative. This removes references to the output +# has from the resulting store paths and thus the NAR files. +_makeSymlinksRelative() { + local symlinkTarget + + if [ -n "${dontRewriteSymlinks-}" ]; then + return 0 + fi + + while IFS= read -r -d $'\0' f; do + symlinkTarget=$(readlink "$f") + if [[ "$symlinkTarget"/ != "$prefix"/* ]]; then + # skip this symlink as it doesn't point to $prefix + continue + fi + + if [ ! -e "$symlinkTarget" ]; then + echo "the symlink $f is broken, it points to $symlinkTarget (which is missing)" + fi + + echo "rewriting symlink $f to be relative to $prefix" + ln -snrf "$symlinkTarget" "$f" + + done < <(find $prefix -type l -print0) +} |