ci: 给「每条规则都为本宿主编译过」这条判据补它自己的分母

这个夹具断言的是「**每一条**规则都编译过」,而「每一条」是它自己carry的一张清单 ——
于是给这个包加第七个成员时,一条名字说它已经被覆盖的步骤会继续绿。

所以在构建之前先把那张清单与包自己的 `[features]` 比一次,两者必须相等。

实测两条腿:相等时通过;从夹具里删掉 `rules-hip` 当场变红。

Author: Sunrisepeak

.github/workflows/ci.yml

@@ -201,9 +201,24 @@ jobs:
       # every rule returns before looking for a payload and nothing is
       # downloaded; what it asserts is that all six modules compile here.
       - name: every rule module compiles for this host
-        working-directory: tests/all-rules-compile
         run: |
           set -e
+          # THE FIXTURE'S OWN DENOMINATOR. It asserts "every rule compiles
+          # here", and "every" is a list it carries -- so a seventh member
+          # added to this package would be covered by a step whose name says it
+          # already is. The list is therefore compared against the package's
+          # own `[features]` before the build, and the two must be equal.
+          feats=$(sed -n '/^\[features\]/,/^# /p' mcpp.toml \
+                  | grep -oE '^[a-z-]+ +=' | sed 's/ *=//' | grep -v '^default$' | sort)
+          used=$(sed -n '/features = \[/,/\], host-module/p' tests/all-rules-compile/mcpp.toml \
+                 | grep -oE '"[a-z-]+"' | tr -d '"' | sort)
+          [ -n "$feats" ] || { echo "FAIL: read no features out of mcpp.toml"; exit 1; }
+          [ "$feats" = "$used" ] || {
+            echo "FAIL: the fixture does not name every published feature"
+            echo "  package: $(echo $feats)"
+            echo "  fixture: $(echo $used)"
+            exit 1; }
+          cd tests/all-rules-compile
           "$MCPP" build
           "$MCPP" run | tee run.log
           grep -q '^all-rules-compile ok' run.log
@@ -470,9 +485,24 @@ jobs:
       # `no member named 'popen' in the global namespace`, reported against a
       # consumer that had nothing to do with it.
       - name: every rule module compiles for this host
-        working-directory: tests/all-rules-compile
         run: |
           set -e
+          # THE FIXTURE'S OWN DENOMINATOR. It asserts "every rule compiles
+          # here", and "every" is a list it carries -- so a seventh member
+          # added to this package would be covered by a step whose name says it
+          # already is. The list is therefore compared against the package's
+          # own `[features]` before the build, and the two must be equal.
+          feats=$(sed -n '/^\[features\]/,/^# /p' mcpp.toml \
+                  | grep -oE '^[a-z-]+ +=' | sed 's/ *=//' | grep -v '^default$' | sort)
+          used=$(sed -n '/features = \[/,/\], host-module/p' tests/all-rules-compile/mcpp.toml \
+                 | grep -oE '"[a-z-]+"' | tr -d '"' | sort)
+          [ -n "$feats" ] || { echo "FAIL: read no features out of mcpp.toml"; exit 1; }
+          [ "$feats" = "$used" ] || {
+            echo "FAIL: the fixture does not name every published feature"
+            echo "  package: $(echo $feats)"
+            echo "  fixture: $(echo $used)"
+            exit 1; }
+          cd tests/all-rules-compile
           "$MCPP" build
           "$MCPP" run | tee run.log
           grep -q '^all-rules-compile ok' run.log