.golangci.yml: unified config w/ per-project extensions

This commit creates a .golangci.yml in the git topdir. Subprojects then
extend this config. Helps to avoid duplication wherever relevant.

Signed-off-by: Lokesh Mandvekar <[email protected]>

Author: lsm5

.golangci.yml

@@ -0,0 +1,21 @@
+version: "2"
+
+formatters:
+  enable:
+    - gofumpt
+
+linters:
+  settings:
+    staticcheck:
+      checks:
+        - all
+        - -QF1008 # https://staticcheck.dev/docs/checks/#QF1008 Omit embedded fields from selector expression.
+  exclusions:
+    presets:
+      - comments
+      - common-false-positives
+      - std-error-handling
+
+issues:
+  max-issues-per-linter: 0
+  max-same-issues: 0

common/.golangci.yml

@@ -1,5 +1,8 @@
 version: "2"
 
+# Extend the root configuration
+extends: ../.golangci.yml
+
 run:
   timeout: 5m
   build-tags:
@@ -11,10 +14,6 @@ run:
     - containers_image_openpgp
     - cni
 
-formatters:
-  enable:
-    - gofumpt
-
 linters:
   enable:
     - asasalint
@@ -87,7 +86,3 @@ linters:
           - contextcheck
         path: libimage
         text: LookupImage
-
-issues:
-  max-issues-per-linter: 0
-  max-same-issues: 0

image/.golangci.yml

@@ -1,8 +1,7 @@
 version: "2"
 
-formatters:
-  enable:
-    - gofumpt
+# Extend the root configuration
+extends: ../.golangci.yml
 
 linters:
   enable:
@@ -21,7 +20,3 @@ linters:
       - comments
       - common-false-positives
       - std-error-handling
-
-issues:
-  max-issues-per-linter: 0
-  max-same-issues: 0

storage/.golangci.yml

@@ -1,24 +1,20 @@
 version: "2"
 
-formatters:
-  enable:
-    - gofumpt
+# Extend the root configuration
+extends: ../.golangci.yml
 
 linters:
   enable:
     - nolintlint
     - unconvert
-  exclusions:
-    presets:
-      - comments
-      - std-error-handling
   settings:
     staticcheck:
       checks:
         - all
         - -ST1003 # https://staticcheck.dev/docs/checks/#ST1003 Poorly chosen identifier.
         - -QF1008 # https://staticcheck.dev/docs/checks/#QF1008 Omit embedded fields from selector expression.
-
-issues:
-  max-issues-per-linter: 0
-  max-same-issues: 0
+  exclusions:
+    presets:
+      - comments
+      - common-false-positives
+      - std-error-handling