Rollup merge of rust-lang#72569 - ChrisDenton:remove-innosetup, r=nikomatsakis

Remove legacy InnoSetup GUI installer

On Windows the InnoSetup `.exe` installer was superseded by the MSI installer long ago. It's no longer needed.

The `.exe` installer hasn't been linked from the [other installation methods](https://forge.rust-lang.org/infra/other-installation-methods.html#standalone) page in many years. As far as I can tell the intent was always to remove this installer once the MSI proved itself. Though admittedly both installers feel very "legacy" at this point.

Removing this would mean we only maintain one Windows GUI installer and would speed up the distribution phase.

As a result of removing InnoSetup, this closes rust-lang#24397

Author: Manishearth

Diff for: .github/workflows/ci.yml

@@ -90,9 +90,6 @@ jobs:
       - name: install WIX
         run: src/ci/scripts/install-wix.sh
         if: success() && !env.SKIP_JOB
-      - name: install InnoSetup
-        run: src/ci/scripts/install-innosetup.sh
-        if: success() && !env.SKIP_JOB
       - name: ensure the build happens on a partition with enough space
         run: src/ci/scripts/symlink-build-dir.sh
         if: success() && !env.SKIP_JOB
@@ -193,9 +190,6 @@ jobs:
       - name: install WIX
         run: src/ci/scripts/install-wix.sh
         if: success() && !env.SKIP_JOB
-      - name: install InnoSetup
-        run: src/ci/scripts/install-innosetup.sh
-        if: success() && !env.SKIP_JOB
       - name: ensure the build happens on a partition with enough space
         run: src/ci/scripts/symlink-build-dir.sh
         if: success() && !env.SKIP_JOB
@@ -537,9 +531,6 @@ jobs:
       - name: install WIX
         run: src/ci/scripts/install-wix.sh
         if: success() && !env.SKIP_JOB
-      - name: install InnoSetup
-        run: src/ci/scripts/install-innosetup.sh
-        if: success() && !env.SKIP_JOB
       - name: ensure the build happens on a partition with enough space
         run: src/ci/scripts/symlink-build-dir.sh
         if: success() && !env.SKIP_JOB

Diff for: src/bootstrap/dist.rs

@@ -1875,28 +1875,7 @@ impl Step for Extended {
                 prepare("rust-mingw");
             }
 
-            builder.install(&xform(&etc.join("exe/rust.iss")), &exe, 0o644);
-            builder.install(&etc.join("exe/modpath.iss"), &exe, 0o644);
-            builder.install(&etc.join("exe/upgrade.iss"), &exe, 0o644);
             builder.install(&etc.join("gfx/rust-logo.ico"), &exe, 0o644);
-            builder.create(&exe.join("LICENSE.txt"), &license);
-
-            // Generate exe installer
-            builder.info("building `exe` installer with `iscc`");
-            let mut cmd = Command::new("iscc");
-            cmd.arg("rust.iss").arg("/Q").current_dir(&exe);
-            if target.contains("windows-gnu") {
-                cmd.arg("/dMINGW");
-            }
-            add_env(builder, &mut cmd, target);
-            let time = timeit(builder);
-            builder.run(&mut cmd);
-            drop(time);
-            builder.install(
-                &exe.join(format!("{}-{}.exe", pkgname(builder, "rust"), target)),
-                &distdir(builder),
-                0o755,
-            );
 
             // Generate msi installer
             let wix = PathBuf::from(env::var_os("WIX").unwrap());

Diff for: src/ci/azure-pipelines/steps/run.yml

@@ -66,10 +66,6 @@ steps:
   displayName: Install wix
   condition: and(succeeded(), not(variables.SKIP_JOB))
 
-- bash: src/ci/scripts/install-innosetup.sh
-  displayName: Install InnoSetup
-  condition: and(succeeded(), not(variables.SKIP_JOB))
-
 - bash: src/ci/scripts/symlink-build-dir.sh
   displayName: Ensure the build happens on a partition with enough space
   condition: and(succeeded(), not(variables.SKIP_JOB))

Diff for: src/ci/github-actions/ci.yml

@@ -131,10 +131,6 @@ x--expand-yaml-anchors--remove:
         run: src/ci/scripts/install-wix.sh
         <<: *step
 
-      - name: install InnoSetup
-        run: src/ci/scripts/install-innosetup.sh
-        <<: *step
-
       - name: ensure the build happens on a partition with enough space
         run: src/ci/scripts/symlink-build-dir.sh
         <<: *step