mkosi: Update to latest

With the latest mkosi, mkosi takes care of making sure it is
available within mkosi sandbox so we get rid of all the --preserve-env=
options when we invoke mkosi sandbox with sudo as these are not
required anymore. It also doesn't matter anymore if mkosi is installed
in /usr on the host so we get rid of the documentation around that as
well.

.github/workflows/coverage.yml

@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
-      - uses: systemd/mkosi@00db6f1a12fb04ed9f837b40ff34f82fab4d4a03
+      - uses: systemd/mkosi@0df7ef3f404b211fbc8d856214929de10311ee22
 
       # Freeing up disk space with rm -rf can take multiple minutes. Since we don't need the extra free space
       # immediately, we remove the files in the background. However, we first move them to a different location
@@ -83,25 +83,23 @@ jobs:
         run: mkosi summary
 
       - name: Build tools tree
-        run: sudo --preserve-env mkosi -f sandbox true
+        run: sudo mkosi -f sandbox true
 
       - name: Configure meson
         run: |
-          sudo --preserve-env --preserve-env=PATH \
-            mkosi sandbox \
+          sudo mkosi sandbox \
             meson setup \
             --buildtype=debugoptimized \
             -Dintegration-tests=true \
             build
 
       - name: Build image
-        run: sudo --preserve-env mkosi sandbox meson compile -C build mkosi
+        run: sudo mkosi sandbox meson compile -C build mkosi
 
       - name: Initial coverage report
         run: |
-          sudo --preserve-env mkdir -p build/test/coverage
-          sudo --preserve-env \
-            mkosi sandbox \
+          sudo mkdir -p build/test/coverage
+          sudo mkosi sandbox \
             lcov \
             --directory build/mkosi.builddir/arch~rolling~x86-64 \
             --capture \
@@ -115,8 +113,7 @@ jobs:
 
       - name: Run integration tests
         run: |
-          sudo --preserve-env \
-            mkosi sandbox \
+          sudo mkosi sandbox \
             meson test \
             -C build \
             --no-rebuild \
@@ -145,7 +142,7 @@ jobs:
               lcov_args+=(--add-tracefile "${file}")
           done < <(find build/test/coverage -name "TEST-*.coverage-info")
 
-          sudo --preserve-env mkosi sandbox lcov --ignore-errors inconsistent,inconsistent "${lcov_args[@]}" --output-file build/test/coverage/everything.coverage-info
+          sudo mkosi sandbox lcov --ignore-errors inconsistent,inconsistent "${lcov_args[@]}" --output-file build/test/coverage/everything.coverage-info
 
       - name: List coverage report
         run: sudo mkosi sandbox lcov --ignore-errors inconsistent,inconsistent --list build/test/coverage/everything.coverage-info

.github/workflows/mkosi.yml

@@ -120,7 +120,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
-      - uses: systemd/mkosi@00db6f1a12fb04ed9f837b40ff34f82fab4d4a03
+      - uses: systemd/mkosi@0df7ef3f404b211fbc8d856214929de10311ee22
 
       # Freeing up disk space with rm -rf can take multiple minutes. Since we don't need the extra free space
       # immediately, we remove the files in the background. However, we first move them to a different location
@@ -188,19 +188,18 @@ jobs:
         run: mkosi summary
 
       - name: Build tools tree
-        run: sudo --preserve-env mkosi -f sandbox true
+        run: sudo mkosi -f sandbox true
 
       - name: Configure meson
         run: |
-          sudo --preserve-env --preserve-env=PATH \
-            mkosi sandbox \
+          sudo mkosi sandbox \
             meson setup \
             --buildtype=debugoptimized \
             -Dintegration-tests=true \
             build
 
       - name: Build image
-        run: sudo --preserve-env mkosi sandbox meson compile -C build mkosi
+        run: sudo mkosi sandbox meson compile -C build mkosi
 
       - name: Run integration tests
         run: |
@@ -210,8 +209,7 @@ jobs:
               MAX_LINES=()
           fi
 
-          sudo --preserve-env \
-            mkosi sandbox \
+          sudo mkosi sandbox \
             env \
             TEST_PREFER_QEMU=${{ matrix.vm }} \
             TEST_SKIP=${{ matrix.skip }} \

docs/HACKING.md

@@ -31,11 +31,10 @@ and allows building and booting an OS image with the latest systemd installed
 for testing purposes.
 
 First, install `mkosi` from the
-[GitHub repository](https://github.com/systemd/mkosi#running-mkosi-from-the-repository).
-Note that it's not possible to use your distribution's packaged version of mkosi
-as mkosi has to be installed outside of `/usr` for the following steps to work. When
-installing mkosi from the github repository, make sure to symlink it to `~/.local/bin`
-instead of `/usr/local/bin` if you want to add it to your `$PATH`.
+[GitHub repository](https://github.com/systemd/mkosi#running-mkosi-from-the-repository)
+or via your distribution's package manager. Note that systemd regularly adopts
+newer mkosi features that are not in an official release yet so there's a good
+chance that your distribution's packaged version of mkosi will be too old.
 
 Then, you can build and run systemd executables as follows: