From 988e5ee5e60acb88b1a8ee9beb6dc76dcadcf4e3 Mon Sep 17 00:00:00 2001
From: Oliver Davies <oliver@oliverdavies.uk>
Date: Fri, 15 Aug 2025 16:20:55 +0100
Subject: [PATCH] Run `composer2nix`

---
 nix/composer2nix/.gitignore       |   1 +
 nix/composer2nix/composer-env.nix | 244 ++++++++++++++++++++++++++++++
 nix/composer2nix/default.nix      |  14 ++
 nix/composer2nix/notes.txt        |   0
 nix/composer2nix/php-packages.nix | 105 +++++++++++++
 5 files changed, 364 insertions(+)
 create mode 100644 nix/composer2nix/composer-env.nix
 create mode 100644 nix/composer2nix/default.nix
 create mode 100644 nix/composer2nix/notes.txt
 create mode 100644 nix/composer2nix/php-packages.nix

diff --git a/nix/composer2nix/.gitignore b/nix/composer2nix/.gitignore
index 57872d0..ab1ab4b 100644
--- a/nix/composer2nix/.gitignore
+++ b/nix/composer2nix/.gitignore
@@ -1 +1,2 @@
+/result
 /vendor/
diff --git a/nix/composer2nix/composer-env.nix b/nix/composer2nix/composer-env.nix
new file mode 100644
index 0000000..71714b7
--- /dev/null
+++ b/nix/composer2nix/composer-env.nix
@@ -0,0 +1,244 @@
+# This file originates from composer2nix
+
+{ stdenv, lib, writeTextFile, fetchurl, php, unzip, phpPackages }:
+
+let
+  inherit (phpPackages) composer;
+
+  filterSrc = src:
+    builtins.filterSource (path: type: type != "directory" || (baseNameOf path != ".git" && baseNameOf path != ".git" && baseNameOf path != ".svn")) src;
+
+  buildZipPackage = { name, src }:
+    stdenv.mkDerivation {
+      inherit name src;
+      nativeBuildInputs = [ unzip ];
+      buildCommand = ''
+        shopt -s dotglob
+        unzip $src
+        baseDir=$(find . -type d -mindepth 1 -maxdepth 1)
+        cd $baseDir
+        mkdir -p $out
+        mv * $out
+      '';
+    };
+
+  buildPackage =
+    { name
+    , src
+    , packages ? {}
+    , devPackages ? {}
+    , buildInputs ? []
+    , symlinkDependencies ? false
+    , executable ? false
+    , removeComposerArtifacts ? false
+    , postInstall ? ""
+    , noDev ? false
+    , composerExtraArgs ? ""
+    , unpackPhase ? "true"
+    , buildPhase ? "true"
+    , ...}@args:
+
+    let
+      reconstructInstalled = writeTextFile {
+        name = "reconstructinstalled.php";
+        executable = true;
+        text = ''
+          #! ${php}/bin/php
+          <?php
+          if(file_exists($argv[1]))
+          {
+              $composerLockStr = file_get_contents($argv[1]);
+
+              if($composerLockStr === false)
+              {
+                  fwrite(STDERR, "Cannot open composer.lock contents\n");
+                  exit(1);
+              }
+              else
+              {
+                  $config = json_decode($composerLockStr, true);
+
+                  if(array_key_exists("packages", $config))
+                      $allPackages = $config["packages"];
+                  else
+                      $allPackages = array();
+
+                  ${lib.optionalString (!noDev) ''
+                    if(array_key_exists("packages-dev", $config))
+                        $allPackages = array_merge($allPackages, $config["packages-dev"]);
+                  ''}
+
+                  $packagesStr = json_encode($allPackages, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
+                  print($packagesStr);
+              }
+          }
+          else
+              print("[]");
+          ?>
+        '';
+      };
+
+      constructBin = writeTextFile {
+        name = "constructbin.php";
+        executable = true;
+        text = ''
+          #! ${php}/bin/php
+          <?php
+          $composerJSONStr = file_get_contents($argv[1]);
+
+          if($composerJSONStr === false)
+          {
+              fwrite(STDERR, "Cannot open composer.json contents\n");
+              exit(1);
+          }
+          else
+          {
+              $config = json_decode($composerJSONStr, true);
+
+              if(array_key_exists("bin-dir", $config))
+                  $binDir = $config["bin-dir"];
+              else
+                  $binDir = "bin";
+
+              if(array_key_exists("bin", $config))
+              {
+                  if(!file_exists("vendor/".$binDir))
+                      mkdir("vendor/".$binDir);
+
+                  foreach($config["bin"] as $bin)
+                      symlink("../../".$bin, "vendor/".$binDir."/".basename($bin));
+              }
+          }
+          ?>
+        '';
+      };
+
+      bundleDependencies = dependencies:
+        lib.concatMapStrings (dependencyName:
+          let
+            dependency = dependencies.${dependencyName};
+          in
+          ''
+            ${if dependency.targetDir == "" then ''
+              vendorDir="$(dirname ${dependencyName})"
+              mkdir -p "$vendorDir"
+              ${if symlinkDependencies then
+                ''ln -s "${dependency.src}" "$vendorDir/$(basename "${dependencyName}")"''
+                else
+                ''cp -av "${dependency.src}" "$vendorDir/$(basename "${dependencyName}")"''
+              }
+            '' else ''
+              namespaceDir="${dependencyName}/$(dirname "${dependency.targetDir}")"
+              mkdir -p "$namespaceDir"
+              ${if symlinkDependencies then
+                ''ln -s "${dependency.src}" "$namespaceDir/$(basename "${dependency.targetDir}")"''
+              else
+                ''cp -av "${dependency.src}" "$namespaceDir/$(basename "${dependency.targetDir}")"''
+              }
+            ''}
+          '') (builtins.attrNames dependencies);
+
+      extraArgs = removeAttrs args [ "packages" "devPackages" "buildInputs" ];
+    in
+    stdenv.mkDerivation ({
+      buildInputs = [ php composer ] ++ buildInputs;
+
+      inherit unpackPhase buildPhase;
+
+      installPhase = ''
+        ${if executable then ''
+          mkdir -p $out/share/php
+          cp -av $src $out/share/php/$name
+          chmod -R u+w $out/share/php/$name
+          cd $out/share/php/$name
+        '' else ''
+          cp -av $src $out
+          chmod -R u+w $out
+          cd $out
+        ''}
+
+        # Remove unwanted files
+        rm -f *.nix
+
+        export HOME=$TMPDIR
+
+        # Remove the provided vendor folder if it exists
+        rm -Rf vendor
+
+        # If there is no composer.lock file, compose a dummy file.
+        # Otherwise, composer attempts to download the package.json file from
+        # the registry which we do not want.
+        if [ ! -f composer.lock ]
+        then
+            cat > composer.lock <<EOF
+        {
+            "packages": []
+        }
+        EOF
+        fi
+
+        # Reconstruct the installed.json file from the lock file
+        mkdir -p vendor/composer
+        ${php}/bin/php ${reconstructInstalled} composer.lock > vendor/composer/installed.json
+
+        # Copy or symlink the provided dependencies
+        cd vendor
+        ${bundleDependencies packages}
+        ${lib.optionalString (!noDev) (bundleDependencies devPackages)}
+        cd ..
+
+        # Reconstruct autoload scripts
+        # We use the optimize feature because Nix packages cannot change after they have been built
+        # Using the dynamic loader for a Nix package is useless since there is nothing to dynamically reload.
+        composer dump-autoload --optimize ${lib.optionalString noDev "--no-dev"} ${composerExtraArgs}
+
+        # Run the install step as a validation to confirm that everything works out as expected
+        composer install --optimize-autoloader ${lib.optionalString noDev "--no-dev"} ${composerExtraArgs}
+
+        ${lib.optionalString executable ''
+          # Reconstruct the bin/ folder if we deploy an executable project
+          ${php}/bin/php ${constructBin} composer.json
+          ln -s $(pwd)/vendor/bin $out/bin
+        ''}
+
+        ${lib.optionalString (!symlinkDependencies) ''
+          # Patch the shebangs if possible
+          if [ -d $(pwd)/vendor/bin ]
+          then
+              # Look for all executables in bin/
+              for i in $(pwd)/vendor/bin/*
+              do
+                  # Look for their location
+                  realFile=$(readlink -f "$i")
+
+                  # Restore write permissions
+                  chmod u+wx "$(dirname "$realFile")"
+                  chmod u+w "$realFile"
+
+                  # Patch shebang
+                  sed -e "s|#!/usr/bin/php|#!${php}/bin/php|" \
+                      -e "s|#!/usr/bin/env php|#!${php}/bin/php|" \
+                      "$realFile" > tmp
+                  mv tmp "$realFile"
+                  chmod u+x "$realFile"
+              done
+          fi
+        ''}
+
+        if [ "$removeComposerArtifacts" = "1" ]
+        then
+            # Remove composer stuff
+            rm -f composer.json composer.lock
+        fi
+
+        # Execute post install hook
+        runHook postInstall
+    '';
+  } // extraArgs);
+in
+{
+  inherit filterSrc;
+  composer = lib.makeOverridable composer;
+  buildZipPackage = lib.makeOverridable buildZipPackage;
+  buildPackage = lib.makeOverridable buildPackage;
+}
diff --git a/nix/composer2nix/default.nix b/nix/composer2nix/default.nix
new file mode 100644
index 0000000..2519bd8
--- /dev/null
+++ b/nix/composer2nix/default.nix
@@ -0,0 +1,14 @@
+{pkgs ? import <nixpkgs> {
+    inherit system;
+  }, system ? builtins.currentSystem, noDev ? false, php ? pkgs.php, phpPackages ? pkgs.phpPackages}:
+
+let
+  composerEnv = import ./composer-env.nix {
+    inherit (pkgs) stdenv lib writeTextFile fetchurl unzip;
+    inherit php phpPackages;
+  };
+in
+import ./php-packages.nix {
+  inherit composerEnv noDev;
+  inherit (pkgs) fetchurl fetchgit fetchhg fetchsvn;
+}
diff --git a/nix/composer2nix/notes.txt b/nix/composer2nix/notes.txt
new file mode 100644
index 0000000..e69de29
diff --git a/nix/composer2nix/php-packages.nix b/nix/composer2nix/php-packages.nix
new file mode 100644
index 0000000..f534a3d
--- /dev/null
+++ b/nix/composer2nix/php-packages.nix
@@ -0,0 +1,105 @@
+{composerEnv, fetchurl, fetchgit ? null, fetchhg ? null, fetchsvn ? null, noDev ? false}:
+
+let
+  packages = {
+    "psr/container" = {
+      targetDir = "";
+      src = composerEnv.buildZipPackage {
+        name = "psr-container-c71ecc56dfe541dbd90c5360474fbc405f8d5963";
+        src = fetchurl {
+          url = "https://api.github.com/repos/php-fig/container/zipball/c71ecc56dfe541dbd90c5360474fbc405f8d5963";
+          sha256 = "1mvan38yb65hwk68hl0p7jymwzr4zfnaxmwjbw7nj3rsknvga49i";
+        };
+      };
+    };
+    "symfony/console" = {
+      targetDir = "";
+      src = composerEnv.buildZipPackage {
+        name = "symfony-console-5f360ebc65c55265a74d23d7fe27f957870158a1";
+        src = fetchurl {
+          url = "https://api.github.com/repos/symfony/console/zipball/5f360ebc65c55265a74d23d7fe27f957870158a1";
+          sha256 = "0y4lq8hd71pg2jwfkrmzhcy85z2rpc05wk43x9sq20pdw312fg0d";
+        };
+      };
+    };
+    "symfony/deprecation-contracts" = {
+      targetDir = "";
+      src = composerEnv.buildZipPackage {
+        name = "symfony-deprecation-contracts-63afe740e99a13ba87ec199bb07bbdee937a5b62";
+        src = fetchurl {
+          url = "https://api.github.com/repos/symfony/deprecation-contracts/zipball/63afe740e99a13ba87ec199bb07bbdee937a5b62";
+          sha256 = "1blzjsmk38b36l15khbx2qs3c6xqmfp32l9xxq3305ifshw7ldby";
+        };
+      };
+    };
+    "symfony/polyfill-ctype" = {
+      targetDir = "";
+      src = composerEnv.buildZipPackage {
+        name = "symfony-polyfill-ctype-a3cc8b044a6ea513310cbd48ef7333b384945638";
+        src = fetchurl {
+          url = "https://api.github.com/repos/symfony/polyfill-ctype/zipball/a3cc8b044a6ea513310cbd48ef7333b384945638";
+          sha256 = "1gwalz2r31bfqldkqhw8cbxybmc1pkg74kvg07binkhk531gjqdn";
+        };
+      };
+    };
+    "symfony/polyfill-intl-grapheme" = {
+      targetDir = "";
+      src = composerEnv.buildZipPackage {
+        name = "symfony-polyfill-intl-grapheme-b9123926e3b7bc2f98c02ad54f6a4b02b91a8abe";
+        src = fetchurl {
+          url = "https://api.github.com/repos/symfony/polyfill-intl-grapheme/zipball/b9123926e3b7bc2f98c02ad54f6a4b02b91a8abe";
+          sha256 = "06kbz2rqp0kyxpry055pciv02ihl7vgygigqhdqqy6q7aphg9i9a";
+        };
+      };
+    };
+    "symfony/polyfill-intl-normalizer" = {
+      targetDir = "";
+      src = composerEnv.buildZipPackage {
+        name = "symfony-polyfill-intl-normalizer-3833d7255cc303546435cb650316bff708a1c75c";
+        src = fetchurl {
+          url = "https://api.github.com/repos/symfony/polyfill-intl-normalizer/zipball/3833d7255cc303546435cb650316bff708a1c75c";
+          sha256 = "0qrq26nw97xfcl0p8x4ria46lk47k73vjjyqiklpw8w5cbibsfxj";
+        };
+      };
+    };
+    "symfony/polyfill-mbstring" = {
+      targetDir = "";
+      src = composerEnv.buildZipPackage {
+        name = "symfony-polyfill-mbstring-6d857f4d76bd4b343eac26d6b539585d2bc56493";
+        src = fetchurl {
+          url = "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/6d857f4d76bd4b343eac26d6b539585d2bc56493";
+          sha256 = "0g9a4jdc0gf7vilvz1yfyzj83bisaqa6j4sz0j9arwjzlc1p2708";
+        };
+      };
+    };
+    "symfony/service-contracts" = {
+      targetDir = "";
+      src = composerEnv.buildZipPackage {
+        name = "symfony-service-contracts-f021b05a130d35510bd6b25fe9053c2a8a15d5d4";
+        src = fetchurl {
+          url = "https://api.github.com/repos/symfony/service-contracts/zipball/f021b05a130d35510bd6b25fe9053c2a8a15d5d4";
+          sha256 = "0gg6vg2x75gn5krzm99bkmk2xpc3n2i2xsi45gf3crgdyrh7mb37";
+        };
+      };
+    };
+    "symfony/string" = {
+      targetDir = "";
+      src = composerEnv.buildZipPackage {
+        name = "symfony-string-42f505aff654e62ac7ac2ce21033818297ca89ca";
+        src = fetchurl {
+          url = "https://api.github.com/repos/symfony/string/zipball/42f505aff654e62ac7ac2ce21033818297ca89ca";
+          sha256 = "02cji47gy7rhrhvmbsg2gvis4875di6d2w89kbz8n2g8w8v2yhay";
+        };
+      };
+    };
+  };
+  devPackages = {};
+in
+composerEnv.buildPackage {
+  inherit packages devPackages noDev;
+  name = "composer2nix-example";
+  src = composerEnv.filterSrc ./.;
+  executable = false;
+  symlinkDependencies = false;
+  meta = {};
+}