2 files changed, 41 insertions, 9 deletions

diff --git a/pkgs/build-support/fetchpatch/default.nix b/pkgs/build-support/fetchpatch/default.nix
index 89d72f512f7..2fb32b2324f 100644
--- a/pkgs/build-support/fetchpatch/default.nix
+++ b/pkgs/build-support/fetchpatch/default.nix
@@ -5,6 +5,10 @@
 # stripLen acts as the -p parameter when applying a patch.
 
 { lib, fetchurl, buildPackages }:
+let
+  # 0.3.4 would change hashes: https://github.com/NixOS/nixpkgs/issues/25154
+  patchutils = buildPackages.patchutils_0_3_3;
+in
 { stripLen ? 0, extraPrefix ? null, excludes ? [], includes ? [], revert ? false, ... }@args:
 
 fetchurl ({
@@ -14,10 +18,10 @@ fetchurl ({
       echo "error: Fetched patch file '$out' is empty!" 1>&2
       exit 1
     fi
-    "${buildPackages.patchutils}/bin/lsdiff" "$out" \
+    "${patchutils}/bin/lsdiff" "$out" \
       | sort -u | sed -e 's/[*?]/\\&/g' \
       | xargs -I{} \
-        "${buildPackages.patchutils}/bin/filterdiff" \
+        "${patchutils}/bin/filterdiff" \
         --include={} \
         --strip=${toString stripLen} \
         ${lib.optionalString (extraPrefix != null) ''
@@ -32,7 +36,7 @@ fetchurl ({
       cat "$out" 1>&2
       exit 1
     fi
-    ${buildPackages.patchutils}/bin/filterdiff \
+    ${patchutils}/bin/filterdiff \
       -p1 \
       ${builtins.toString (builtins.map (x: "-x ${lib.escapeShellArg x}") excludes)} \
       ${builtins.toString (builtins.map (x: "-i ${lib.escapeShellArg x}") includes)} \
@@ -46,7 +50,7 @@ fetchurl ({
       exit 1
     fi
   '' + lib.optionalString revert ''
-    ${buildPackages.patchutils}/bin/interdiff "$out" /dev/null > "$tmpfile"
+    ${patchutils}/bin/interdiff "$out" /dev/null > "$tmpfile"
     mv "$tmpfile" "$out"
   '' + (args.postFetch or "");
   meta.broken = excludes != [] && includes != [];
diff --git a/pkgs/build-support/trivial-builders.nix b/pkgs/build-support/trivial-builders.nix
index e498417adf0..f56ce7bb87d 100644
--- a/pkgs/build-support/trivial-builders.nix
+++ b/pkgs/build-support/trivial-builders.nix
@@ -79,7 +79,6 @@ rec {
         (test -n "$executable" && chmod +x "$n") || true
       '';
 
-
   /*
    * Writes a text file to nix store with no optional parameters available.
    *
@@ -92,6 +91,7 @@ rec {
    *
   */
   writeText = name: text: writeTextFile {inherit name text;};
+
   /*
    * Writes a text file to nix store in a specific directory with no
    * optional parameters available. Name passed is the destination.
@@ -105,6 +105,7 @@ rec {
    *
   */
   writeTextDir = name: text: writeTextFile {inherit name text; destination = "/${name}";};
+
   /*
    * Writes a text file to /nix/store/<store path> and marks the file as executable.
    *
@@ -117,13 +118,14 @@ rec {
    *
   */
   writeScript = name: text: writeTextFile {inherit name text; executable = true;};
+
   /*
    * Writes a text file to /nix/store/<store path>/bin/<name> and
    * marks the file as executable.
    *
    * Example:
    * # Writes my-file to /nix/store/<store path>/bin/my-file and makes executable.
-   * writeScript "my-file"
+   * writeScriptBin "my-file"
    *   ''
    *   Contents of File
    *   '';
@@ -132,12 +134,38 @@ rec {
   writeScriptBin = name: text: writeTextFile {inherit name text; executable = true; destination = "/bin/${name}";};
 
   /*
-   * Writes a Shell script and check its syntax. Automatically includes interpreter
-   * above the contents passed.
+   * Similar to writeScript. Writes a Shell script and checks its syntax.
+   * Automatically includes interpreter above the contents passed.
+   *
+   * Example:
+   * # Writes my-file to /nix/store/<store path>/my-file and makes executable.
+   * writeShellScript "my-file"
+   *   ''
+   *   Contents of File
+   *   '';
+   *
+  */
+  writeShellScript = name: text:
+    writeTextFile {
+      inherit name;
+      executable = true;
+      text = ''
+        #!${runtimeShell}
+        ${text}
+        '';
+      checkPhase = ''
+        ${stdenv.shell} -n $out
+      '';
+    };
+
+  /*
+   * Similar to writeShellScript and writeScriptBin.
+   * Writes an executable Shell script to /nix/store/<store path>/bin/<name> and checks its syntax.
+   * Automatically includes interpreter above the contents passed.
    *
    * Example:
    * # Writes my-file to /nix/store/<store path>/bin/my-file and makes executable.
-   * writeScript "my-file"
+   * writeShellScriptBin "my-file"
    *   ''
    *   Contents of File
    *   '';