new: vscode settings (#296)

.vscode/settings.json

@@ -0,0 +1,9 @@
+{
+    "rust-analyzer.rustfmt.extraArgs": [
+        "+nightly"
+    ],
+    "coverage-gutters.coverageBaseDir": "target",
+    "coverage-gutters.coverageFileNames": [
+        "lcov.info"
+    ],
+}

Makefile

@@ -7,6 +7,9 @@ SCREENSHOT_SAMPLE = prometheus.log
 # Exported variables
 export RUST_BACKTRACE=1
 
+# The list of files that are intentionally ignored while being tracked
+ignored-tracked-files = .vscode/settings.json
+
 ## Print help
 help:
 	@echo "$$(tput setaf 2)Usage$$(tput sgr0)";sed -ne"/^## /{h;s/.*//;:d" -e"H;n;s/^## /---/;td" -e"s/:.*//;G;s/\\n## /===/;s/\\n//g;p;}" ${MAKEFILE_LIST}|awk -F === -v n=$$(tput cols) -v i=4 -v a="$$(tput setaf 6)" -v z="$$(tput sgr0)" '{printf"  '$$(tput setaf 2)make$$(tput sgr0)' %s%s%s\t",a,$$1,z;m=split($$2,w,"---");l=n-i;for(j=1;j<=m;j++){l-=length(w[j])+1;if(l<= 0){l=n-i-length(w[j])-1;}printf"%*s%s\n",-i," ",w[j];}}' | column -ts $$'\t'
@@ -97,6 +100,16 @@ coverage:
 	@build/ci/coverage.sh
 .PHONY: coverage
 
+## Skip ignored tracked files
+skip-ignored:
+	@git update-index --skip-worktree $(ignored-tracked-files)
+.PHONY: skip-ignored
+
+## Undo skip-ignored
+no-skip-ignored:
+	@git update-index --no-skip-worktree $(ignored-tracked-files)
+.PHONY: no-skip-ignored
+
 contrib-build:
 	@contrib/bin/setup.sh build
 .PHONY: contrib-build