Merge branch 'es/chain-lint-in-subshell'

Look for broken "&&" chains that are hidden in subshell, many of
which have been found and corrected.

* es/chain-lint-in-subshell:
  t/chainlint.sed: drop extra spaces from regex character class
  t/chainlint: add chainlint "specialized" test cases
  t/chainlint: add chainlint "complex" test cases
  t/chainlint: add chainlint "cuddled" test cases
  t/chainlint: add chainlint "loop" and "conditional" test cases
  t/chainlint: add chainlint "nested subshell" test cases
  t/chainlint: add chainlint "one-liner" test cases
  t/chainlint: add chainlint "whitespace" test cases
  t/chainlint: add chainlint "basic" test cases
  t/Makefile: add machinery to check correctness of chainlint.sed
  t/test-lib: teach --chain-lint to detect broken &&-chains in subshells

1 files changed, 31 insertions, 0 deletions

diff --git a/t/chainlint/nested-cuddled-subshell.test b/t/chainlint/nested-cuddled-subshell.test
new file mode 100644
index 0000000000..8fd656c7b5
--- /dev/null
+++ b/t/chainlint/nested-cuddled-subshell.test
@@ -0,0 +1,31 @@
+(
+# LINT: opening "(" cuddled with first nested subshell statement
+	(cd foo &&
+		bar
+	) &&
+
+# LINT: same but "&&" missing
+	(cd foo &&
+		bar
+	)
+
+# LINT: closing ")" cuddled with final nested subshell statement
+	(
+		cd foo &&
+		bar) &&
+
+# LINT: same but "&&" missing
+	(
+		cd foo &&
+		bar)
+
+# LINT: "(" and ")" cuddled with first and final subshell statements
+	(cd foo &&
+		bar) &&
+
+# LINT: same but "&&" missing
+	(cd foo &&
+		bar)
+
+	foobar
+)