Fix nfpm script path issue by copying scripts to working directory

- Copy postinst/postrm scripts to working directory before building
- Update nfpm configuration to use relative paths for scripts
- Clean up copied scripts after package build completes
- This ensures nfpm can find the scripts when running from working directory

Author: edavidaja

package/src/linux/installer.ts

@@ -71,14 +71,16 @@ async function createNfpmConfig(
       },
     ],
 
-    scripts: {
-      postinstall: join(configuration.directoryInfo.pkg, "scripts", "linux", format, "postinst"),
-      postremove: join(configuration.directoryInfo.pkg, "scripts", "linux", format, "postrm"),
-    },
 
     overrides: {},
   };
 
+  // Use relative paths for scripts (relative to working directory where nfpm runs)
+  config.scripts = {
+    postinstall: `./postinst`,
+    postremove: `./postrm`,
+  };
+
   // Format-specific configuration
   if (format === 'deb') {
     config.overrides.deb = {
@@ -139,6 +141,18 @@ async function buildPackageWithNfpm(
     overwrite: true,
   });
 
+  // Copy scripts to working directory for nfpm to find them
+  const scriptSourceDir = join(configuration.directoryInfo.pkg, "scripts", "linux", format);
+  const postinstScript = join(scriptSourceDir, "postinst");
+  const postrmScript = join(scriptSourceDir, "postrm");
+
+  if (existsSync(postinstScript)) {
+    copySync(postinstScript, join(workingDir, "postinst"));
+  }
+  if (existsSync(postrmScript)) {
+    copySync(postrmScript, join(workingDir, "postrm"));
+  }
+
   // Create nfpm configuration
   const nfpmConfig = await createNfpmConfig(configuration, format, workingDir);
   const configPath = join(workingDir, "nfpm.yaml");
@@ -165,8 +179,16 @@ async function buildPackageWithNfpm(
 
   info(`Package created: ${outputPath}`);
 
-  // Clean up - config file is now in the working directory
+  // Clean up - config file and scripts are in the working directory
   Deno.removeSync(join(workingDir, "nfpm.yaml"));
+  const postinstPath = join(workingDir, "postinst");
+  const postrmPath = join(workingDir, "postrm");
+  if (existsSync(postinstPath)) {
+    Deno.removeSync(postinstPath);
+  }
+  if (existsSync(postrmPath)) {
+    Deno.removeSync(postrmPath);
+  }
   // Optionally remove working directory
   // Deno.removeSync(workingDir, { recursive: true });
 }