fix: support non-json input files in jq

docs/jq.md

@@ -68,6 +68,23 @@ jq(
     args = ["--slurp"],
     out = "foobar.json",
 )
+
+# Convert genquery output to json
+genquery(
+    name = "deps",
+    expression = "deps(//some:target)",
+    scope = ["//some:target"],
+)
+
+jq(
+    name = "deps_json",
+    srcs = [":deps"],
+    args = [
+        "--raw-input",
+        "--slurp",
+    ],
+    filter = "{ deps: split("\n") | map(select(. | length > 0)) }",
+)
 ```
 
 
@@ -77,7 +94,7 @@ jq(
 | Name  | Description | Default Value |
 | :------------- | :------------- | :------------- |
 | <a id="jq-name"></a>name |  Name of the rule   |  none |
-| <a id="jq-srcs"></a>srcs |  List of input json files   |  none |
+| <a id="jq-srcs"></a>srcs |  List of input files   |  none |
 | <a id="jq-filter"></a>filter |  Filter expression (https://stedolan.github.io/jq/manual/#Basicfilters)   |  <code>None</code> |
 | <a id="jq-filter_file"></a>filter_file |  File containing filter expression (alternative to <code>filter</code>)   |  <code>None</code> |
 | <a id="jq-args"></a>args |  Additional args to pass to jq   |  <code>[]</code> |

lib/jq.bzl

@@ -67,11 +67,28 @@ def jq(name, srcs, filter = None, filter_file = None, args = [], out = None, **k
         args = ["--slurp"],
         out = "foobar.json",
     )
+
+    # Convert genquery output to json
+    genquery(
+        name = "deps",
+        expression = "deps(//some:target)",
+        scope = ["//some:target"],
+    )
+
+    jq(
+        name = "deps_json",
+        srcs = [":deps"],
+        args = [
+            "--raw-input",
+            "--slurp",
+        ],
+        filter = "{ deps: split(\"\\n\") | map(select(. | length > 0)) }",
+    )
     ```
 
     Args:
         name: Name of the rule
-        srcs: List of input json files
+        srcs: List of input files
         filter: Filter expression (https://stedolan.github.io/jq/manual/#Basicfilters)
         filter_file: File containing filter expression (alternative to `filter`)
         args: Additional args to pass to jq

lib/private/jq.bzl

@@ -2,7 +2,7 @@
 
 _jq_attrs = {
     "srcs": attr.label_list(
-        allow_files = [".json"],
+        allow_files = True,
         mandatory = True,
         allow_empty = True,
     ),

lib/tests/jq/BUILD.bazel

@@ -109,3 +109,20 @@ diff_test(
     file1 = "genrule_output.json",
     file2 = "a_pretty.json",
 )
+
+# Raw input (--raw-input / -R)
+jq(
+    name = "case_raw_input",
+    srcs = ["raw.txt"],
+    args = [
+        "--raw-input",
+        "--slurp",
+    ],
+    filter = "split(\"\\n\")",
+)
+
+diff_test(
+    name = "case_raw_input_test",
+    file1 = ":case_raw_input",
+    file2 = "raw_expected.json",
+)

lib/tests/jq/raw.txt

@@ -0,0 +1,4 @@
+foo
+bar
+moo
+cow

lib/tests/jq/raw_expected.json

@@ -0,0 +1,6 @@
+[
+  "foo",
+  "bar",
+  "moo",
+  "cow"
+]