yq: allow any filename in srcs (#496)

* yq: allow any filename in srcs

* yq: add test cases for free-form file extensions in input

* run buildifier

---------

Co-authored-by: Alex Eagle <alex@aspect.dev>

lib/private/yq.bzl

@@ -4,7 +4,7 @@ load("//lib:stamping.bzl", "STAMP_ATTRS", "maybe_stamp")
 
 _yq_attrs = dict({
     "srcs": attr.label_list(
-        allow_files = [".yaml", ".json", ".xml"],
+        allow_files = True,
         mandatory = True,
         allow_empty = True,
     ),

lib/tests/yq/BUILD.bazel

@@ -1,6 +1,7 @@
 load("//lib/private:diff_test.bzl", "diff_test")
 load("//lib:yq.bzl", "yq")
 load("//lib:testing.bzl", "assert_contains")
+load("//lib:copy_file.bzl", "copy_file")
 
 exports_files(
     [
@@ -9,6 +10,18 @@ exports_files(
     visibility = ["//visibility:public"],
 )
 
+copy_file(
+    name = "yaml_otherextension",
+    src = "a.yaml",
+    out = "a.whatever",
+)
+
+copy_file(
+    name = "json_otherextension",
+    src = "//lib/tests/jq:a_pretty.json",
+    out = "a.dealerschoice",
+)
+
 # Identity (dot) expression produces identical yaml
 yq(
     name = "case_dot_expression",
@@ -22,6 +35,18 @@ diff_test(
     file2 = ":case_dot_expression",
 )
 
+yq(
+    name = "case_dot_expression_otherextension",
+    srcs = ["a.whatever"],
+    expression = ".",
+)
+
+diff_test(
+    name = "case_dot_expression_otherextension_test",
+    file1 = "a.whatever",
+    file2 = ":case_dot_expression_otherextension",
+)
+
 # No expression same as dot expression
 yq(
     name = "case_no_expression",
@@ -34,6 +59,17 @@ diff_test(
     file2 = ":case_no_expression",
 )
 
+yq(
+    name = "case_no_expression_otherextension",
+    srcs = ["a.whatever"],
+)
+
+diff_test(
+    name = "case_no_expression_otherextension_test",
+    file1 = "a.whatever",
+    file2 = ":case_no_expression",
+)
+
 # Output json, no out declared
 yq(
     name = "case_json_output_no_out",
@@ -48,6 +84,19 @@ diff_test(
     file2 = "case_json_output_no_out.json",
 )
 
+yq(
+    name = "case_json_output_no_out_otherextension",
+    srcs = ["a.whatever"],
+    args = ["-o=json"],
+    expression = ".",
+)
+
+diff_test(
+    name = "case_json_output_no_out_otherextension_test",
+    file1 = "//lib/tests/jq:a_pretty.json",
+    file2 = "case_json_output_no_out.json",
+)
+
 # Output json, outs has ".json" extension but "-o=json" not set
 yq(
     name = "case_json_output_no_arg",
@@ -77,6 +126,19 @@ diff_test(
     file2 = ":case_convert_json_to_yaml",
 )
 
+yq(
+    name = "case_convert_json_to_yaml_otherextension",
+    srcs = ["a.dealerschoice"],
+    args = ["-P"],
+    expression = ".",
+)
+
+diff_test(
+    name = "case_convert_json_to_yaml_otherextension_test",
+    file1 = "a.yaml",
+    file2 = ":case_convert_json_to_yaml",
+)
+
 # No srcs, output is a generated expression
 yq(
     name = "case_generate_from_expression",