fix(task): resolve deno configuration file first from specified --cwd arg (#15257)

cli/args/config_file.rs

@@ -2,6 +2,8 @@
 
 use crate::args::ConfigFlag;
 use crate::args::Flags;
+use crate::args::TaskFlags;
+use crate::fs_util;
 use crate::fs_util::canonicalize_path;
 use crate::fs_util::specifier_parent;
 use crate::fs_util::specifier_to_file_path;
@@ -449,6 +451,18 @@ impl ConfigFile {
               return Ok(Some(cf));
             }
           }
+          // attempt to resolve the config file from the task subcommand's
+          // `--cwd` when specified
+          if let crate::args::DenoSubcommand::Task(TaskFlags {
+            cwd: Some(path),
+            ..
+          }) = &flags.subcommand
+          {
+            let task_cwd = fs_util::canonicalize_path(&PathBuf::from(path))?;
+            if let Some(path) = Self::discover_from(&task_cwd, &mut checked)? {
+              return Ok(Some(path));
+            }
+          };
           // From CWD walk up to root looking for deno.json or deno.jsonc
           let cwd = std::env::current_dir()?;
           Self::discover_from(&cwd, &mut checked)

cli/tests/integration/task_tests.rs

@@ -19,6 +19,13 @@ itest!(task_cwd {
   exit_code: 0,
 });
 
+itest!(task_cwd_resolves_config_from_specified_dir {
+  args: "task -q --cwd task",
+  output: "task/task_no_args.out",
+  envs: vec![("NO_COLOR".to_string(), "1".to_string())],
+  exit_code: 1,
+});
+
 itest!(task_non_existent {
   args: "task --config task/deno.json non_existent",
   output: "task/task_non_existent.out",