diff options
Diffstat (limited to 'nixpkgs/pkgs/development/tools/ocaml/opam/opam-shebangs.patch')
| -rw-r--r-- | nixpkgs/pkgs/development/tools/ocaml/opam/opam-shebangs.patch | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/tools/ocaml/opam/opam-shebangs.patch b/nixpkgs/pkgs/development/tools/ocaml/opam/opam-shebangs.patch new file mode 100644 index 000000000000..13aa7a895708 --- /dev/null +++ b/nixpkgs/pkgs/development/tools/ocaml/opam/opam-shebangs.patch @@ -0,0 +1,128 @@ +diff --git a/src/client/opamInitDefaults.ml b/src/client/opamInitDefaults.ml +index eca13a7c..1fd66f43 100644 +--- a/src/client/opamInitDefaults.ml ++++ b/src/client/opamInitDefaults.ml +@@ -35,11 +35,15 @@ let eval_variables = [ + let os_filter os = + FOp (FIdent ([], OpamVariable.of_string "os", None), `Eq, FString os) + ++let os_distribution_filter distro = ++ FOp (FIdent ([], OpamVariable.of_string "os-distribution", None), `Eq, FString distro) ++ + let linux_filter = os_filter "linux" + let macos_filter = os_filter "macos" + let openbsd_filter = os_filter "openbsd" + let freebsd_filter = os_filter "freebsd" + let sandbox_filter = FOr (linux_filter, macos_filter) ++let nixos_filter = os_distribution_filter "nixos" + + let gpatch_filter = FOr (openbsd_filter, freebsd_filter) + let patch_filter = FNot gpatch_filter +@@ -50,6 +54,11 @@ let wrappers ~sandboxing () = + CString t, None; + ] in + let w = OpamFile.Wrappers.empty in ++ let w = { w with ++ OpamFile.Wrappers. ++ pre_build = [[CString "%{hooks}%/shebangs.sh", None], Some nixos_filter]; ++ } ++ in + if sandboxing then + { w with + OpamFile.Wrappers. +@@ -113,6 +122,7 @@ let required_tools ~sandboxing () = + let init_scripts () = [ + ("sandbox.sh", OpamScript.bwrap), Some bwrap_filter; + ("sandbox.sh", OpamScript.sandbox_exec), Some macos_filter; ++ ("shebangs.sh", OpamScript.patch_shebangs), Some nixos_filter; + ] + + module I = OpamFile.InitConfig +diff --git a/src/state/opamScript.mli b/src/state/opamScript.mli +index 03449970..83de0b53 100644 +--- a/src/state/opamScript.mli ++++ b/src/state/opamScript.mli +@@ -20,3 +20,4 @@ val env_hook : string + val env_hook_zsh : string + val env_hook_csh : string + val env_hook_fish : string ++val patch_shebangs : string +diff --git a/src/state/shellscripts/patch_shebangs.sh b/src/state/shellscripts/patch_shebangs.sh +new file mode 100755 +index 00000000..3ea84e2d +--- /dev/null ++++ b/src/state/shellscripts/patch_shebangs.sh +@@ -0,0 +1,73 @@ ++#!/usr/bin/env bash ++# This setup hook causes the fixup phase to rewrite all script ++# interpreter file names (`#! /path') to paths found in $PATH. E.g., ++# /bin/sh will be rewritten to /nix/store/<hash>-some-bash/bin/sh. ++# /usr/bin/env gets special treatment so that ".../bin/env python" is ++# rewritten to /nix/store/<hash>/bin/python. Interpreters that are ++# already in the store are left untouched. ++ ++header() { echo "$1"; } ++stopNest() { true; } ++ ++fixupOutputHooks+=('if [ -z "${dontPatchShebangs-}" -a -e "$prefix" ]; then patchShebangs "$prefix"; fi') ++ ++patchShebangs() { ++ local dir="$1" ++ header "patching script interpreter paths in $dir" ++ local f ++ local oldPath ++ local newPath ++ local arg0 ++ local args ++ local oldInterpreterLine ++ local newInterpreterLine ++ ++ find "$dir" -type f -perm -0100 | while read f; do ++ if [ "$(head -1 "$f" | head -c+2)" != '#!' ]; then ++ # missing shebang => not a script ++ continue ++ fi ++ ++ oldInterpreterLine=$(head -1 "$f" | tail -c+3) ++ read -r oldPath arg0 args <<< "$oldInterpreterLine" ++ ++ if $(echo "$oldPath" | grep -q "/bin/env$"); then ++ # Check for unsupported 'env' functionality: ++ # - options: something starting with a '-' ++ # - environment variables: foo=bar ++ if $(echo "$arg0" | grep -q -- "^-.*\|.*=.*"); then ++ echo "unsupported interpreter directive \"$oldInterpreterLine\" (set dontPatchShebangs=1 and handle shebang patching yourself)" ++ exit 1 ++ fi ++ newPath="$(command -v "$arg0" || true)" ++ else ++ if [ "$oldPath" = "" ]; then ++ # If no interpreter is specified linux will use /bin/sh. Set ++ # oldpath="/bin/sh" so that we get /nix/store/.../sh. ++ oldPath="/bin/sh" ++ fi ++ newPath="$(command -v "$(basename "$oldPath")" || true)" ++ args="$arg0 $args" ++ fi ++ ++ # Strip trailing whitespace introduced when no arguments are present ++ newInterpreterLine="$(echo "$newPath $args" | sed 's/[[:space:]]*$//')" ++ ++ if [ -n "$oldPath" -a "${oldPath:0:${#NIX_STORE}}" != "$NIX_STORE" ]; then ++ if [ -n "$newPath" -a "$newPath" != "$oldPath" ]; then ++ echo "$f: interpreter directive changed from \"$oldInterpreterLine\" to \"$newInterpreterLine\"" ++ # escape the escape chars so that sed doesn't interpret them ++ escapedInterpreterLine=$(echo "$newInterpreterLine" | sed 's|\\|\\\\|g') ++ # Preserve times, see: https://github.com/NixOS/nixpkgs/pull/33281 ++ touch -r "$f" "$f.timestamp" ++ sed -i -e "1 s|.*|#\!$escapedInterpreterLine|" "$f" ++ touch -r "$f.timestamp" "$f" ++ rm "$f.timestamp" ++ fi ++ fi ++ done ++ ++ stopNest ++} ++ ++patchShebangs . |