| | 1 | count_chunks() { |
| | 2 | elements="${1//[^\/]}" |
| | 3 | echo $(( "${#elements}" )) |
| | 4 | } |
| | 5 | |
| | 6 | oldout=$out |
| | 7 | prefix_chunks=$(count_chunks $NIX_STORE) |
| | 8 | |
| | 9 | : ${storepath_length=${#NIX_STORE}} |
| | 10 | : ${storepath_chunks=$prefix_chunks} |
| | 11 | |
| | 12 | if [ "$storepath_chunks" -lt $prefix_chunks ]; then |
| | 13 | echo "Need to have at least as much path elements as the initial prefix" |
| | 14 | exit 1 |
| | 15 | fi |
| | 16 | |
| | 17 | min_length=$(( ${#NIX_STORE} + 2 * $storepath_chunks - 2 * $prefix_chunks )) |
| | 18 | if [ "$storepath_length" -lt "$min_length" ]; then |
| | 19 | echo "The storepath length needs to be at least the length of the prefix" |
| | 20 | exit 1 |
| | 21 | fi |
| | 22 | |
| | 23 | if [ "$storepath_chunks" -eq "$prefix_chunks" -a "$storepath_length" -gt "$min_length" ]; then |
| | 24 | echo "You need at least one more chunk for a non-standard path length" |
| | 25 | exit 1 |
| | 26 | fi |
| | 27 | |
| | 28 | appendOut() { |
| | 29 | chunk_prefix=$(for (( c=$prefix_chunks ; c < $storepath_chunks ; c++ )); do echo -n "/x"; done) |
| | 30 | length_prefix=$(for (( c=$(( ${#NIX_STORE} + ${#chunk_prefix} )) ; c < $storepath_length ; c++ )); do echo -n "x"; done) |
| | 31 | out="$out$chunk_prefix$length_prefix" |
| | 32 | if [ -n $chunk_prefix -o -n $length_prefix ]; then |
| | 33 | mkdir -p $(dirname $out) |
| | 34 | fi |
| | 35 | |
| | 36 | : ${libc_path=} |
| | 37 | : ${configureFlags=} |
| | 38 | configureFlags="${configureFlags//$oldout/$out}" |
| | 39 | if [ -n "$libc_path" ]; then |
| | 40 | libc_oldpath=$libc_path/lib |
| | 41 | libc_newpath=$(cat $libc_path/nix-support/new-out)/lib |
| | 42 | configureFlags="${configureFlags//$libc_oldpath/$libc_newpath}" |
| | 43 | fi |
| | 44 | } |
| | 45 | |
| | 46 | addNixSupport() { |
| | 47 | if [ ! -d $out ]; then |
| | 48 | return |
| | 49 | fi |
| | 50 | mkdir -p $out/nix-support |
| | 51 | echo $out > $out/nix-support/new-out |
| | 52 | } |
| | 53 | |
| | 54 | overridePlaceholder() { |
| | 55 | function _callImplicitHook { |
| | 56 | local def="$1" |
| | 57 | local hookName="$2" |
| | 58 | if declare -F "$hookName" > /dev/null; then |
| | 59 | "$hookName" |
| | 60 | elif type -p "$hookName" > /dev/null; then |
| | 61 | source "$hookName" |
| | 62 | elif [ -n "${!hookName:-}" ]; then |
| | 63 | content="${!hookName}" |
| | 64 | eval "${content//$oldout/$out}" |
| | 65 | else |
| | 66 | return "$def" |
| | 67 | fi |
| | 68 | } |
| | 69 | } |
| | 70 | |
| | 71 | preHooks+=(appendOut overridePlaceholder) |
| | 72 | |
| | 73 | restoreSingleFile() { |
| | 74 | if [ "$out" != "$oldout" -a -f $out ]; then |
| | 75 | cp -a $out ./file |
| | 76 | rm -rf $oldout |
| | 77 | cp -a ./file $oldout |
| | 78 | fi |
| | 79 | } |
| | 80 | |
| | 81 | addSymlinks() { |
| | 82 | if [ "$out" != "$oldout" -a -d $out ]; then |
| | 83 | ln -s $out/* $oldout/ |
| | 84 | fi |
| | 85 | } |
| | 86 | |
| | 87 | rename_generic_build() { |
| | 88 | eval "$(echo "orig_genericBuild()"; declare -f genericBuild | tail -n +2)" |
| | 89 | function genericBuild { |
| | 90 | orig_genericBuild "$@" |
| | 91 | restoreSingleFile |
| | 92 | addSymlinks |
| | 93 | addNixSupport |
| | 94 | } |
| | 95 | } |
| | 96 | |
| | 97 | exitHooks+=(restoreSingleFile addSymlinks addNixSupport) |
| | 98 | postHooks+=(rename_generic_build) |
projects / perso / Immae / Config / Nixies.git / blame_incremental