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-rw-r--r--t/.gitignore1
-rw-r--r--t/Makefile25
-rw-r--r--t/chainlint.sed346
-rw-r--r--t/chainlint/arithmetic-expansion.expect9
-rw-r--r--t/chainlint/arithmetic-expansion.test11
-rw-r--r--t/chainlint/bash-array.expect10
-rw-r--r--t/chainlint/bash-array.test12
-rw-r--r--t/chainlint/blank-line.expect4
-rw-r--r--t/chainlint/blank-line.test10
-rw-r--r--t/chainlint/block.expect12
-rw-r--r--t/chainlint/block.test15
-rw-r--r--t/chainlint/broken-chain.expect6
-rw-r--r--t/chainlint/broken-chain.test8
-rw-r--r--t/chainlint/case.expect19
-rw-r--r--t/chainlint/case.test23
-rw-r--r--t/chainlint/close-nested-and-parent-together.expect4
-rw-r--r--t/chainlint/close-nested-and-parent-together.test3
-rw-r--r--t/chainlint/close-subshell.expect25
-rw-r--r--t/chainlint/close-subshell.test27
-rw-r--r--t/chainlint/command-substitution.expect9
-rw-r--r--t/chainlint/command-substitution.test11
-rw-r--r--t/chainlint/comment.expect4
-rw-r--r--t/chainlint/comment.test11
-rw-r--r--t/chainlint/complex-if-in-cuddled-loop.expect10
-rw-r--r--t/chainlint/complex-if-in-cuddled-loop.test11
-rw-r--r--t/chainlint/cuddled-if-then-else.expect7
-rw-r--r--t/chainlint/cuddled-if-then-else.test7
-rw-r--r--t/chainlint/cuddled-loop.expect5
-rw-r--r--t/chainlint/cuddled-loop.test7
-rw-r--r--t/chainlint/cuddled.expect21
-rw-r--r--t/chainlint/cuddled.test23
-rw-r--r--t/chainlint/exit-loop.expect24
-rw-r--r--t/chainlint/exit-loop.test27
-rw-r--r--t/chainlint/exit-subshell.expect5
-rw-r--r--t/chainlint/exit-subshell.test6
-rw-r--r--t/chainlint/for-loop.expect11
-rw-r--r--t/chainlint/for-loop.test19
-rw-r--r--t/chainlint/here-doc.expect3
-rw-r--r--t/chainlint/here-doc.test16
-rw-r--r--t/chainlint/if-in-loop.expect12
-rw-r--r--t/chainlint/if-in-loop.test15
-rw-r--r--t/chainlint/if-then-else.expect19
-rw-r--r--t/chainlint/if-then-else.test28
-rw-r--r--t/chainlint/incomplete-line.expect4
-rw-r--r--t/chainlint/incomplete-line.test12
-rw-r--r--t/chainlint/inline-comment.expect9
-rw-r--r--t/chainlint/inline-comment.test12
-rw-r--r--t/chainlint/loop-in-if.expect12
-rw-r--r--t/chainlint/loop-in-if.test15
-rw-r--r--t/chainlint/multi-line-nested-command-substitution.expect9
-rw-r--r--t/chainlint/multi-line-nested-command-substitution.test9
-rw-r--r--t/chainlint/multi-line-string.expect9
-rw-r--r--t/chainlint/multi-line-string.test15
-rw-r--r--t/chainlint/negated-one-liner.expect5
-rw-r--r--t/chainlint/negated-one-liner.test7
-rw-r--r--t/chainlint/nested-cuddled-subshell.expect19
-rw-r--r--t/chainlint/nested-cuddled-subshell.test31
-rw-r--r--t/chainlint/nested-here-doc.expect5
-rw-r--r--t/chainlint/nested-here-doc.test23
-rw-r--r--t/chainlint/nested-subshell-comment.expect11
-rw-r--r--t/chainlint/nested-subshell-comment.test13
-rw-r--r--t/chainlint/nested-subshell.expect12
-rw-r--r--t/chainlint/nested-subshell.test14
-rw-r--r--t/chainlint/one-liner.expect9
-rw-r--r--t/chainlint/one-liner.test12
-rw-r--r--t/chainlint/p4-filespec.expect4
-rw-r--r--t/chainlint/p4-filespec.test5
-rw-r--r--t/chainlint/pipe.expect8
-rw-r--r--t/chainlint/pipe.test12
-rw-r--r--t/chainlint/semicolon.expect20
-rw-r--r--t/chainlint/semicolon.test25
-rw-r--r--t/chainlint/subshell-here-doc.expect5
-rw-r--r--t/chainlint/subshell-here-doc.test23
-rw-r--r--t/chainlint/subshell-one-liner.expect14
-rw-r--r--t/chainlint/subshell-one-liner.test24
-rw-r--r--t/chainlint/while-loop.expect11
-rw-r--r--t/chainlint/while-loop.test19
-rw-r--r--t/test-lib.sh3
78 files changed, 1316 insertions, 5 deletions
diff --git a/t/.gitignore b/t/.gitignore
index 4e731dc1e3..348715f0e4 100644
--- a/t/.gitignore
+++ b/t/.gitignore
@@ -1,3 +1,4 @@
/trash directory*
/test-results
/.prove
+/chainlinttmp
diff --git a/t/Makefile b/t/Makefile
index 96317a35f4..c83fd18861 100644
--- a/t/Makefile
+++ b/t/Makefile
@@ -18,8 +18,10 @@ TEST_LINT ?= test-lint
ifdef TEST_OUTPUT_DIRECTORY
TEST_RESULTS_DIRECTORY = $(TEST_OUTPUT_DIRECTORY)/test-results
+CHAINLINTTMP = $(TEST_OUTPUT_DIRECTORY)/chainlinttmp
else
TEST_RESULTS_DIRECTORY = test-results
+CHAINLINTTMP = chainlinttmp
endif
# Shell quote;
@@ -27,14 +29,17 @@ SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
TEST_SHELL_PATH_SQ = $(subst ','\'',$(TEST_SHELL_PATH))
PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))
TEST_RESULTS_DIRECTORY_SQ = $(subst ','\'',$(TEST_RESULTS_DIRECTORY))
+CHAINLINTTMP_SQ = $(subst ','\'',$(CHAINLINTTMP))
T = $(sort $(wildcard t[0-9][0-9][0-9][0-9]-*.sh))
TGITWEB = $(sort $(wildcard t95[0-9][0-9]-*.sh))
THELPERS = $(sort $(filter-out $(T),$(wildcard *.sh)))
+CHAINLINTTESTS = $(sort $(patsubst chainlint/%.test,%,$(wildcard chainlint/*.test)))
+CHAINLINT = sed -f chainlint.sed
all: $(DEFAULT_TEST_TARGET)
-test: pre-clean $(TEST_LINT)
+test: pre-clean check-chainlint $(TEST_LINT)
$(MAKE) aggregate-results-and-cleanup
failed:
@@ -43,7 +48,7 @@ failed:
sed -n 's/\.counts$$/.sh/p') && \
test -z "$$failed" || $(MAKE) $$failed
-prove: pre-clean $(TEST_LINT)
+prove: pre-clean check-chainlint $(TEST_LINT)
@echo "*** prove ***"; $(PROVE) --exec '$(TEST_SHELL_PATH_SQ)' $(GIT_PROVE_OPTS) $(T) :: $(GIT_TEST_OPTS)
$(MAKE) clean-except-prove-cache
@@ -53,13 +58,25 @@ $(T):
pre-clean:
$(RM) -r '$(TEST_RESULTS_DIRECTORY_SQ)'
-clean-except-prove-cache:
+clean-except-prove-cache: clean-chainlint
$(RM) -r 'trash directory'.* '$(TEST_RESULTS_DIRECTORY_SQ)'
$(RM) -r valgrind/bin
clean: clean-except-prove-cache
$(RM) .prove
+clean-chainlint:
+ $(RM) -r '$(CHAINLINTTMP_SQ)'
+
+check-chainlint:
+ @mkdir -p '$(CHAINLINTTMP_SQ)' && \
+ err=0 && \
+ for i in $(CHAINLINTTESTS); do \
+ $(CHAINLINT) <chainlint/$$i.test | \
+ sed -e '/^# LINT: /d' >'$(CHAINLINTTMP_SQ)'/$$i.actual && \
+ diff -u chainlint/$$i.expect '$(CHAINLINTTMP_SQ)'/$$i.actual || err=1; \
+ done && exit $$err
+
test-lint: test-lint-duplicates test-lint-executable test-lint-shell-syntax \
test-lint-filenames
@@ -102,4 +119,4 @@ valgrind:
perf:
$(MAKE) -C perf/ all
-.PHONY: pre-clean $(T) aggregate-results clean valgrind perf
+.PHONY: pre-clean $(T) aggregate-results clean valgrind perf check-chainlint clean-chainlint
diff --git a/t/chainlint.sed b/t/chainlint.sed
new file mode 100644
index 0000000000..5f0882cb38
--- /dev/null
+++ b/t/chainlint.sed
@@ -0,0 +1,346 @@
+#------------------------------------------------------------------------------
+# Detect broken &&-chains in tests.
+#
+# At present, only &&-chains in subshells are examined by this linter;
+# top-level &&-chains are instead checked directly by the test framework. Like
+# the top-level &&-chain linter, the subshell linter (intentionally) does not
+# check &&-chains within {...} blocks.
+#
+# Checking for &&-chain breakage is done line-by-line by pure textual
+# inspection.
+#
+# Incomplete lines (those ending with "\") are stitched together with following
+# lines to simplify processing, particularly of "one-liner" statements.
+# Top-level here-docs are swallowed to avoid false positives within the
+# here-doc body, although the statement to which the here-doc is attached is
+# retained.
+#
+# Heuristics are used to detect end-of-subshell when the closing ")" is cuddled
+# with the final subshell statement on the same line:
+#
+# (cd foo &&
+# bar)
+#
+# in order to avoid misinterpreting the ")" in constructs such as "x=$(...)"
+# and "case $x in *)" as ending the subshell.
+#
+# Lines missing a final "&&" are flagged with "?!AMP?!", and lines which chain
+# commands with ";" internally rather than "&&" are flagged "?!SEMI?!". A line
+# may be flagged for both violations.
+#
+# Detection of a missing &&-link in a multi-line subshell is complicated by the
+# fact that the last statement before the closing ")" must not end with "&&".
+# Since processing is line-by-line, it is not known whether a missing "&&" is
+# legitimate or not until the _next_ line is seen. To accommodate this, within
+# multi-line subshells, each line is stored in sed's "hold" area until after
+# the next line is seen and processed. If the next line is a stand-alone ")",
+# then a missing "&&" on the previous line is legitimate; otherwise a missing
+# "&&" is a break in the &&-chain.
+#
+# (
+# cd foo &&
+# bar
+# )
+#
+# In practical terms, when "bar" is encountered, it is flagged with "?!AMP?!",
+# but when the stand-alone ")" line is seen which closes the subshell, the
+# "?!AMP?!" violation is removed from the "bar" line (retrieved from the "hold"
+# area) since the final statement of a subshell must not end with "&&". The
+# final line of a subshell may still break the &&-chain by using ";" internally
+# to chain commands together rather than "&&", so "?!SEMI?!" is never removed
+# from a line (even though "?!AMP?!" might be).
+#
+# Care is taken to recognize the last _statement_ of a multi-line subshell, not
+# necessarily the last textual _line_ within the subshell, since &&-chaining
+# applies to statements, not to lines. Consequently, blank lines, comment
+# lines, and here-docs are swallowed (but not the command to which the here-doc
+# is attached), leaving the last statement in the "hold" area, not the last
+# line, thus simplifying &&-link checking.
+#
+# The final statement before "done" in for- and while-loops, and before "elif",
+# "else", and "fi" in if-then-else likewise must not end with "&&", thus
+# receives similar treatment.
+#
+# To facilitate regression testing (and manual debugging), a ">" annotation is
+# applied to the line containing ")" which closes a subshell, ">>" to a line
+# closing a nested subshell, and ">>>" to a line closing both at once. This
+# makes it easy to detect whether the heuristics correctly identify
+# end-of-subshell.
+#------------------------------------------------------------------------------
+
+# incomplete line -- slurp up next line
+:squash
+/\\$/ {
+ N
+ s/\\\n//
+ bsquash
+}
+
+# here-doc -- swallow it to avoid false hits within its body (but keep the
+# command to which it was attached)
+/<<[ ]*[-\\]*EOF[ ]*/ {
+ s/[ ]*<<[ ]*[-\\]*EOF//
+ h
+ :hereslurp
+ N
+ s/.*\n//
+ /^[ ]*EOF[ ]*$/!bhereslurp
+ x
+}
+
+# one-liner "(...) &&"
+/^[ ]*!*[ ]*(..*)[ ]*&&[ ]*$/boneline
+
+# same as above but without trailing "&&"
+/^[ ]*!*[ ]*(..*)[ ]*$/boneline
+
+# one-liner "(...) >x" (or "2>x" or "<x" or "|x" or "&"
+/^[ ]*!*[ ]*(..*)[ ]*[0-9]*[<>|&]/boneline
+
+# multi-line "(...\n...)"
+/^[ ]*(/bsubshell
+
+# innocuous line -- print it and advance to next line
+b
+
+# found one-liner "(...)" -- mark suspect if it uses ";" internally rather than
+# "&&" (but not ";" in a string)
+:oneline
+/;/{
+ /"[^"]*;[^"]*"/!s/^/?!SEMI?!/
+}
+b
+
+:subshell
+# bare "(" line?
+/^[ ]*([ ]*$/ {
+ # stash for later printing
+ h
+ bnextline
+}
+# "(..." line -- split off and stash "(", then process "..." as its own line
+x
+s/.*/(/
+x
+s/(//
+bslurp
+
+:nextline
+N
+s/.*\n//
+
+:slurp
+# incomplete line "...\"
+/\\$/bincomplete
+# multi-line quoted string "...\n..."
+/^[^"]*"[^"]*$/bdqstring
+# multi-line quoted string '...\n...' (but not contraction in string "it's so")
+/^[^']*'[^']*$/{
+ /"[^'"]*'[^'"]*"/!bsqstring
+}
+# here-doc -- swallow it
+/<<[ ]*[-\\]*EOF/bheredoc
+/<<[ ]*[-\\]*EOT/bheredoc
+/<<[ ]*[-\\]*INPUT_END/bheredoc
+# comment or empty line -- discard since final non-comment, non-empty line
+# before closing ")", "done", "elsif", "else", or "fi" will need to be
+# re-visited to drop "suspect" marking since final line of those constructs
+# legitimately lacks "&&", so "suspect" mark must be removed
+/^[ ]*#/bnextline
+/^[ ]*$/bnextline
+# in-line comment -- strip it (but not "#" in a string, Bash ${#...} array
+# length, or Perforce "//depot/path#42" revision in filespec)
+/[ ]#/{
+ /"[^"]*#[^"]*"/!s/[ ]#.*$//
+}
+# one-liner "case ... esac"
+/^[ ]*case[ ]*..*esac/bcheckchain
+# multi-line "case ... esac"
+/^[ ]*case[ ]..*[ ]in/bcase
+# multi-line "for ... done" or "while ... done"
+/^[ ]*for[ ]..*[ ]in/bcontinue
+/^[ ]*while[ ]/bcontinue
+/^[ ]*do[ ]/bcontinue
+/^[ ]*do[ ]*$/bcontinue
+/;[ ]*do/bcontinue
+/^[ ]*done[ ]*&&[ ]*$/bdone
+/^[ ]*done[ ]*$/bdone
+/^[ ]*done[ ]*[<>|]/bdone
+/^[ ]*done[ ]*)/bdone
+/||[ ]*exit[ ]/bcontinue
+/||[ ]*exit[ ]*$/bcontinue
+# multi-line "if...elsif...else...fi"
+/^[ ]*if[ ]/bcontinue
+/^[ ]*then[ ]/bcontinue
+/^[ ]*then[ ]*$/bcontinue
+/;[ ]*then/bcontinue
+/^[ ]*elif[ ]/belse
+/^[ ]*elif[ ]*$/belse
+/^[ ]*else[ ]/belse
+/^[ ]*else[ ]*$/belse
+/^[ ]*fi[ ]*&&[ ]*$/bdone
+/^[ ]*fi[ ]*$/bdone
+/^[ ]*fi[ ]*[<>|]/bdone
+/^[ ]*fi[ ]*)/bdone
+# nested one-liner "(...) &&"
+/^[ ]*(.*)[ ]*&&[ ]*$/bcheckchain
+# nested one-liner "(...)"
+/^[ ]*(.*)[ ]*$/bcheckchain
+# nested one-liner "(...) >x" (or "2>x" or "<x" or "|x")
+/^[ ]*(.*)[ ]*[0-9]*[<>|]/bcheckchain
+# nested multi-line "(...\n...)"
+/^[ ]*(/bnest
+# multi-line "{...\n...}"
+/^[ ]*{/bblock
+# closing ")" on own line -- exit subshell
+/^[ ]*)/bclosesolo
+# "$((...))" -- arithmetic expansion; not closing ")"
+/\$(([^)][^)]*))[^)]*$/bcheckchain
+# "$(...)" -- command substitution; not closing ")"
+/\$([^)][^)]*)[^)]*$/bcheckchain
+# multi-line "$(...\n...)" -- command substitution; treat as nested subshell
+/\$([ ]*$/bnest
+# "=(...)" -- Bash array assignment; not closing ")"
+/=(/bcheckchain
+# closing "...) &&"
+/)[ ]*&&[ ]*$/bclose
+# closing "...)"
+/)[ ]*$/bclose
+# closing "...) >x" (or "2>x" or "<x" or "|x")
+/)[ ]*[<>|]/bclose
+:checkchain
+# mark suspect if line uses ";" internally rather than "&&" (but not ";" in a
+# string and not ";;" in one-liner "case...esac")
+/;/{
+ /;;/!{
+ /"[^"]*;[^"]*"/!s/^/?!SEMI?!/
+ }
+}
+# line ends with pipe "...|" -- valid; not missing "&&"
+/|[ ]*$/bcontinue
+# missing end-of-line "&&" -- mark suspect
+/&&[ ]*$/!s/^/?!AMP?!/
+:continue
+# retrieve and print previous line
+x
+n
+bslurp
+
+# found incomplete line "...\" -- slurp up next line
+:incomplete
+N
+s/\\\n//
+bslurp
+
+# found multi-line double-quoted string "...\n..." -- slurp until end of string
+:dqstring
+s/"//g
+N
+s/\n//
+/"/!bdqstring
+bcheckchain
+
+# found multi-line single-quoted string '...\n...' -- slurp until end of string
+:sqstring
+s/'//g
+N
+s/\n//
+/'/!bsqstring
+bcheckchain
+
+# found here-doc -- swallow it to avoid false hits within its body (but keep
+# the command to which it was attached); take care to handle here-docs nested
+# within here-docs by only recognizing closing tag matching outer here-doc
+# opening tag
+:heredoc
+/EOF/{ s/[ ]*<<[ ]*[-\\]*EOF//; s/^/EOF/; }
+/EOT/{ s/[ ]*<<[ ]*[-\\]*EOT//; s/^/EOT/; }
+/INPUT_END/{ s/[ ]*<<[ ]*[-\\]*INPUT_END//; s/^/INPUT_END/; }
+:hereslurpsub
+N
+/^EOF.*\n[ ]*EOF[ ]*$/bhereclose
+/^EOT.*\n[ ]*EOT[ ]*$/bhereclose
+/^INPUT_END.*\n[ ]*INPUT_END[ ]*$/bhereclose
+bhereslurpsub
+:hereclose
+s/^EOF//
+s/^EOT//
+s/^INPUT_END//
+s/\n.*$//
+bcheckchain
+
+# found "case ... in" -- pass through untouched
+:case
+x
+n
+/^[ ]*esac/bslurp
+bcase
+
+# found "else" or "elif" -- drop "suspect" from final line before "else" since
+# that line legitimately lacks "&&"
+:else
+x
+s/?!AMP?!//
+x
+bcontinue
+
+# found "done" closing for-loop or while-loop, or "fi" closing if-then -- drop
+# "suspect" from final contained line since that line legitimately lacks "&&"
+:done
+x
+s/?!AMP?!//
+x
+# is 'done' or 'fi' cuddled with ")" to close subshell?
+/done.*)/bclose
+/fi.*)/bclose
+bcheckchain
+
+# found nested multi-line "(...\n...)" -- pass through untouched
+:nest
+x
+:nestslurp
+n
+# closing ")" on own line -- stop nested slurp
+/^[ ]*)/bnestclose
+# comment -- not closing ")" if in comment
+/^[ ]*#/bnestcontinue
+# "$((...))" -- arithmetic expansion; not closing ")"
+/\$(([^)][^)]*))[^)]*$/bnestcontinue
+# "$(...)" -- command substitution; not closing ")"
+/\$([^)][^)]*)[^)]*$/bnestcontinue
+# closing "...)" -- stop nested slurp
+/)/bnestclose
+:nestcontinue
+x
+bnestslurp
+:nestclose
+s/^/>>/
+# is it "))" which closes nested and parent subshells?
+/)[ ]*)/bslurp
+bcheckchain
+
+# found multi-line "{...\n...}" block -- pass through untouched
+:block
+x
+n
+# closing "}" -- stop block slurp
+/}/bcheckchain
+bblock
+
+# found closing ")" on own line -- drop "suspect" from final line of subshell
+# since that line legitimately lacks "&&" and exit subshell loop
+:closesolo
+x
+s/?!AMP?!//
+p
+x
+s/^/>/
+b
+
+# found closing "...)" -- exit subshell loop
+:close
+x
+p
+x
+s/^/>/
+b
diff --git a/t/chainlint/arithmetic-expansion.expect b/t/chainlint/arithmetic-expansion.expect
new file mode 100644
index 0000000000..09457d3196
--- /dev/null
+++ b/t/chainlint/arithmetic-expansion.expect
@@ -0,0 +1,9 @@
+(
+ foo &&
+ bar=$((42 + 1)) &&
+ baz
+>) &&
+(
+?!AMP?! bar=$((42 + 1))
+ baz
+>)
diff --git a/t/chainlint/arithmetic-expansion.test b/t/chainlint/arithmetic-expansion.test
new file mode 100644
index 0000000000..16206960d8
--- /dev/null
+++ b/t/chainlint/arithmetic-expansion.test
@@ -0,0 +1,11 @@
+(
+ foo &&
+# LINT: closing ")" of $((...)) not misinterpreted as subshell-closing ")"
+ bar=$((42 + 1)) &&
+ baz
+) &&
+(
+# LINT: missing "&&" on $((...))
+ bar=$((42 + 1))
+ baz
+)
diff --git a/t/chainlint/bash-array.expect b/t/chainlint/bash-array.expect
new file mode 100644
index 0000000000..c4a830d1c1
--- /dev/null
+++ b/t/chainlint/bash-array.expect
@@ -0,0 +1,10 @@
+(
+ foo &&
+ bar=(gumbo stumbo wumbo) &&
+ baz
+>) &&
+(
+ foo &&
+ bar=${#bar[@]} &&
+ baz
+>)
diff --git a/t/chainlint/bash-array.test b/t/chainlint/bash-array.test
new file mode 100644
index 0000000000..92bbb777b8
--- /dev/null
+++ b/t/chainlint/bash-array.test
@@ -0,0 +1,12 @@
+(
+ foo &&
+# LINT: ")" in Bash array assignment not misinterpreted as subshell-closing ")"
+ bar=(gumbo stumbo wumbo) &&
+ baz
+) &&
+(
+ foo &&
+# LINT: Bash array length operator not misinterpreted as comment
+ bar=${#bar[@]} &&
+ baz
+)
diff --git a/t/chainlint/blank-line.expect b/t/chainlint/blank-line.expect
new file mode 100644
index 0000000000..3be939ed38
--- /dev/null
+++ b/t/chainlint/blank-line.expect
@@ -0,0 +1,4 @@
+(
+ nothing &&
+ something
+>)
diff --git a/t/chainlint/blank-line.test b/t/chainlint/blank-line.test
new file mode 100644
index 0000000000..f6dd14302b
--- /dev/null
+++ b/t/chainlint/blank-line.test
@@ -0,0 +1,10 @@
+(
+
+ nothing &&
+
+ something
+# LINT: swallow blank lines since final _statement_ before subshell end is
+# LINT: significant to "&&"-check, not final _line_ (which might be blank)
+
+
+)
diff --git a/t/chainlint/block.expect b/t/chainlint/block.expect
new file mode 100644
index 0000000000..fed7e89ae8
--- /dev/null
+++ b/t/chainlint/block.expect
@@ -0,0 +1,12 @@
+(
+ foo &&
+ {
+ echo a
+ echo b
+ } &&
+ bar &&
+ {
+ echo c
+?!AMP?! }
+ baz
+>)
diff --git a/t/chainlint/block.test b/t/chainlint/block.test
new file mode 100644
index 0000000000..d859151af1
--- /dev/null
+++ b/t/chainlint/block.test
@@ -0,0 +1,15 @@
+(
+# LINT: missing "&&" in block not currently detected (for consistency with
+# LINT: --chain-lint at top level and to provide escape hatch if needed)
+ foo &&
+ {
+ echo a
+ echo b
+ } &&
+ bar &&
+# LINT: missing "&&" at closing "}"
+ {
+ echo c
+ }
+ baz
+)
diff --git a/t/chainlint/broken-chain.expect b/t/chainlint/broken-chain.expect
new file mode 100644
index 0000000000..55b0f42a53
--- /dev/null
+++ b/t/chainlint/broken-chain.expect
@@ -0,0 +1,6 @@
+(
+ foo &&
+?!AMP?! bar
+ baz &&
+ wop
+>)
diff --git a/t/chainlint/broken-chain.test b/t/chainlint/broken-chain.test
new file mode 100644
index 0000000000..3cc67b65d0
--- /dev/null
+++ b/t/chainlint/broken-chain.test
@@ -0,0 +1,8 @@
+(
+ foo &&
+# LINT: missing "&&" from 'bar'
+ bar
+ baz &&
+# LINT: final statement before closing ")" legitimately lacks "&&"
+ wop
+)
diff --git a/t/chainlint/case.expect b/t/chainlint/case.expect
new file mode 100644
index 0000000000..41f121fbbf
--- /dev/null
+++ b/t/chainlint/case.expect
@@ -0,0 +1,19 @@
+(
+ case "$x" in
+ x) foo ;;
+ *) bar ;;
+ esac &&
+ foobar
+>) &&
+(
+ case "$x" in
+ x) foo ;;
+ *) bar ;;
+?!AMP?! esac
+ foobar
+>) &&
+(
+ case "$x" in 1) true;; esac &&
+?!AMP?! case "$y" in 2) false;; esac
+ foobar
+>)
diff --git a/t/chainlint/case.test b/t/chainlint/case.test
new file mode 100644
index 0000000000..5ef6ff7db5
--- /dev/null
+++ b/t/chainlint/case.test
@@ -0,0 +1,23 @@
+(
+# LINT: "...)" arms in 'case' not misinterpreted as subshell-closing ")"
+ case "$x" in
+ x) foo ;;
+ *) bar ;;
+ esac &&
+ foobar
+) &&
+(
+# LINT: missing "&&" on 'esac'
+ case "$x" in
+ x) foo ;;
+ *) bar ;;
+ esac
+ foobar
+) &&
+(
+# LINT: "...)" arm in one-liner 'case' not misinterpreted as closing ")"
+ case "$x" in 1) true;; esac &&
+# LINT: same but missing "&&"
+ case "$y" in 2) false;; esac
+ foobar
+)
diff --git a/t/chainlint/close-nested-and-parent-together.expect b/t/chainlint/close-nested-and-parent-together.expect
new file mode 100644
index 0000000000..2a910f9d66
--- /dev/null
+++ b/t/chainlint/close-nested-and-parent-together.expect
@@ -0,0 +1,4 @@
+(
+cd foo &&
+ (bar &&
+>>> baz))
diff --git a/t/chainlint/close-nested-and-parent-together.test b/t/chainlint/close-nested-and-parent-together.test
new file mode 100644
index 0000000000..72d482f76d
--- /dev/null
+++ b/t/chainlint/close-nested-and-parent-together.test
@@ -0,0 +1,3 @@
+(cd foo &&
+ (bar &&
+ baz))
diff --git a/t/chainlint/close-subshell.expect b/t/chainlint/close-subshell.expect
new file mode 100644
index 0000000000..184688718a
--- /dev/null
+++ b/t/chainlint/close-subshell.expect
@@ -0,0 +1,25 @@
+(
+ foo
+>) &&
+(
+ bar
+>) >out &&
+(
+ baz
+>) 2>err &&
+(
+ boo
+>) <input &&
+(
+ bip
+>) | wuzzle &&
+(
+ bop
+>) | fazz fozz &&
+(
+ bup
+>) |
+fuzzle &&
+(
+ yop
+>)
diff --git a/t/chainlint/close-subshell.test b/t/chainlint/close-subshell.test
new file mode 100644
index 0000000000..508ca447fd
--- /dev/null
+++ b/t/chainlint/close-subshell.test
@@ -0,0 +1,27 @@
+# LINT: closing ")" with various decorations ("&&", ">", "|", etc.)
+(
+ foo
+) &&
+(
+ bar
+) >out &&
+(
+ baz
+) 2>err &&
+(
+ boo
+) <input &&
+(
+ bip
+) | wuzzle &&
+(
+ bop
+) | fazz \
+ fozz &&
+(
+ bup
+) |
+fuzzle &&
+(
+ yop
+)
diff --git a/t/chainlint/command-substitution.expect b/t/chainlint/command-substitution.expect
new file mode 100644
index 0000000000..ad4118e537
--- /dev/null
+++ b/t/chainlint/command-substitution.expect
@@ -0,0 +1,9 @@
+(
+ foo &&
+ bar=$(gobble) &&
+ baz
+>) &&
+(
+?!AMP?! bar=$(gobble blocks)
+ baz
+>)
diff --git a/t/chainlint/command-substitution.test b/t/chainlint/command-substitution.test
new file mode 100644
index 0000000000..3bbb002a4c
--- /dev/null
+++ b/t/chainlint/command-substitution.test
@@ -0,0 +1,11 @@
+(
+ foo &&
+# LINT: closing ")" of $(...) not misinterpreted as subshell-closing ")"
+ bar=$(gobble) &&
+ baz
+) &&
+(
+# LINT: missing "&&" on $(...)
+ bar=$(gobble blocks)
+ baz
+)
diff --git a/t/chainlint/comment.expect b/t/chainlint/comment.expect
new file mode 100644
index 0000000000..3be939ed38
--- /dev/null
+++ b/t/chainlint/comment.expect
@@ -0,0 +1,4 @@
+(
+ nothing &&
+ something
+>)
diff --git a/t/chainlint/comment.test b/t/chainlint/comment.test
new file mode 100644
index 0000000000..113c0c466f
--- /dev/null
+++ b/t/chainlint/comment.test
@@ -0,0 +1,11 @@
+(
+# LINT: swallow comment lines
+ # comment 1
+ nothing &&
+ # comment 2
+ something
+# LINT: swallow comment lines since final _statement_ before subshell end is
+# LINT: significant to "&&"-check, not final _line_ (which might be comment)
+ # comment 3
+ # comment 4
+)
diff --git a/t/chainlint/complex-if-in-cuddled-loop.expect b/t/chainlint/complex-if-in-cuddled-loop.expect
new file mode 100644
index 0000000000..9674b88cf2
--- /dev/null
+++ b/t/chainlint/complex-if-in-cuddled-loop.expect
@@ -0,0 +1,10 @@
+(
+for i in a b c; do
+ if test "$(echo $(waffle bat))" = "eleventeen" &&
+ test "$x" = "$y"; then
+ :
+ else
+ echo >file
+ fi
+> done) &&
+test ! -f file
diff --git a/t/chainlint/complex-if-in-cuddled-loop.test b/t/chainlint/complex-if-in-cuddled-loop.test
new file mode 100644
index 0000000000..571bbd85cd
--- /dev/null
+++ b/t/chainlint/complex-if-in-cuddled-loop.test
@@ -0,0 +1,11 @@
+# LINT: 'for' loop cuddled with "(" and ")" and nested 'if' with complex
+# LINT: multi-line condition; indented with spaces, not tabs
+(for i in a b c; do
+ if test "$(echo $(waffle bat))" = "eleventeen" &&
+ test "$x" = "$y"; then
+ :
+ else
+ echo >file
+ fi
+ done) &&
+test ! -f file
diff --git a/t/chainlint/cuddled-if-then-else.expect b/t/chainlint/cuddled-if-then-else.expect
new file mode 100644
index 0000000000..ab2a026fbc
--- /dev/null
+++ b/t/chainlint/cuddled-if-then-else.expect
@@ -0,0 +1,7 @@
+(
+if test -z ""; then
+ echo empty
+ else
+ echo bizzy
+> fi) &&
+echo foobar
diff --git a/t/chainlint/cuddled-if-then-else.test b/t/chainlint/cuddled-if-then-else.test
new file mode 100644
index 0000000000..eed774a9d6
--- /dev/null
+++ b/t/chainlint/cuddled-if-then-else.test
@@ -0,0 +1,7 @@
+# LINT: 'if' cuddled with "(" and ")"; indented with spaces, not tabs
+(if test -z ""; then
+ echo empty
+ else
+ echo bizzy
+ fi) &&
+echo foobar
diff --git a/t/chainlint/cuddled-loop.expect b/t/chainlint/cuddled-loop.expect
new file mode 100644
index 0000000000..8c0260d7f1
--- /dev/null
+++ b/t/chainlint/cuddled-loop.expect
@@ -0,0 +1,5 @@
+(
+ while read x
+ do foobar bop || exit 1
+> done <file ) &&
+outside subshell
diff --git a/t/chainlint/cuddled-loop.test b/t/chainlint/cuddled-loop.test
new file mode 100644
index 0000000000..a841d781f0
--- /dev/null
+++ b/t/chainlint/cuddled-loop.test
@@ -0,0 +1,7 @@
+# LINT: 'while' loop cuddled with "(" and ")", with embedded (allowed)
+# LINT: "|| exit {n}" to exit loop early, and using redirection "<" to feed
+# LINT: loop; indented with spaces, not tabs
+( while read x
+ do foobar bop || exit 1
+ done <file ) &&
+outside subshell
diff --git a/t/chainlint/cuddled.expect b/t/chainlint/cuddled.expect
new file mode 100644
index 0000000000..b506d46221
--- /dev/null
+++ b/t/chainlint/cuddled.expect
@@ -0,0 +1,21 @@
+(
+cd foo &&
+ bar
+>) &&
+
+(
+?!AMP?!cd foo
+ bar
+>) &&
+
+(
+ cd foo &&
+> bar) &&
+
+(
+cd foo &&
+> bar) &&
+
+(
+?!AMP?!cd foo
+> bar)
diff --git a/t/chainlint/cuddled.test b/t/chainlint/cuddled.test
new file mode 100644
index 0000000000..0499fa4180
--- /dev/null
+++ b/t/chainlint/cuddled.test
@@ -0,0 +1,23 @@
+# LINT: first subshell statement cuddled with opening "("; for implementation
+# LINT: simplicity, "(..." is split into two lines, "(" and "..."
+(cd foo &&
+ bar
+) &&
+
+# LINT: same with missing "&&"
+(cd foo
+ bar
+) &&
+
+# LINT: closing ")" cuddled with final subshell statement
+(
+ cd foo &&
+ bar) &&
+
+# LINT: "(" and ")" cuddled with first and final subshell statements
+(cd foo &&
+ bar) &&
+
+# LINT: same with missing "&&"
+(cd foo
+ bar)
diff --git a/t/chainlint/exit-loop.expect b/t/chainlint/exit-loop.expect
new file mode 100644
index 0000000000..84d8bdebc0
--- /dev/null
+++ b/t/chainlint/exit-loop.expect
@@ -0,0 +1,24 @@
+(
+ for i in a b c
+ do
+ foo || exit 1
+ bar &&
+ baz
+ done
+>) &&
+(
+ while true
+ do
+ foo || exit 1
+ bar &&
+ baz
+ done
+>) &&
+(
+ i=0 &&
+ while test $i -lt 10
+ do
+ echo $i || exit
+ i=$(($i + 1))
+ done
+>)
diff --git a/t/chainlint/exit-loop.test b/t/chainlint/exit-loop.test
new file mode 100644
index 0000000000..2f038207e1
--- /dev/null
+++ b/t/chainlint/exit-loop.test
@@ -0,0 +1,27 @@
+(
+ for i in a b c
+ do
+# LINT: "|| exit {n}" valid for-loop escape in subshell; no "&&" needed
+ foo || exit 1
+ bar &&
+ baz
+ done
+) &&
+(
+ while true
+ do
+# LINT: "|| exit {n}" valid while-loop escape in subshell; no "&&" needed
+ foo || exit 1
+ bar &&
+ baz
+ done
+) &&
+(
+ i=0 &&
+ while test $i -lt 10
+ do
+# LINT: "|| exit" (sans exit code) valid escape in subshell; no "&&" needed
+ echo $i || exit
+ i=$(($i + 1))
+ done
+)
diff --git a/t/chainlint/exit-subshell.expect b/t/chainlint/exit-subshell.expect
new file mode 100644
index 0000000000..bf78454f74
--- /dev/null
+++ b/t/chainlint/exit-subshell.expect
@@ -0,0 +1,5 @@
+(
+ foo || exit 1
+ bar &&
+ baz
+>)
diff --git a/t/chainlint/exit-subshell.test b/t/chainlint/exit-subshell.test
new file mode 100644
index 0000000000..4e6ab69b88
--- /dev/null
+++ b/t/chainlint/exit-subshell.test
@@ -0,0 +1,6 @@
+(
+# LINT: "|| exit {n}" valid subshell escape without hurting &&-chain
+ foo || exit 1
+ bar &&
+ baz
+)
diff --git a/t/chainlint/for-loop.expect b/t/chainlint/for-loop.expect
new file mode 100644
index 0000000000..c33cf56ee7
--- /dev/null
+++ b/t/chainlint/for-loop.expect
@@ -0,0 +1,11 @@
+(
+ for i in a b c
+ do
+?!AMP?! echo $i
+ cat
+?!AMP?! done
+ for i in a b c; do
+ echo $i &&
+ cat $i
+ done
+>)
diff --git a/t/chainlint/for-loop.test b/t/chainlint/for-loop.test
new file mode 100644
index 0000000000..7db76262bc
--- /dev/null
+++ b/t/chainlint/for-loop.test
@@ -0,0 +1,19 @@
+(
+# LINT: 'for', 'do', 'done' do not need "&&"
+ for i in a b c
+ do
+# LINT: missing "&&" on 'echo'
+ echo $i
+# LINT: last statement of while does not need "&&"
+ cat <<-\EOF
+ bar
+ EOF
+# LINT: missing "&&" on 'done'
+ done
+
+# LINT: 'do' on same line as 'for'
+ for i in a b c; do
+ echo $i &&
+ cat $i
+ done
+)
diff --git a/t/chainlint/here-doc.expect b/t/chainlint/here-doc.expect
new file mode 100644
index 0000000000..2328fe7753
--- /dev/null
+++ b/t/chainlint/here-doc.expect
@@ -0,0 +1,3 @@
+boodle wobba gorgo snoot wafta snurb &&
+
+horticulture
diff --git a/t/chainlint/here-doc.test b/t/chainlint/here-doc.test
new file mode 100644
index 0000000000..bd36f6e1d3
--- /dev/null
+++ b/t/chainlint/here-doc.test
@@ -0,0 +1,16 @@
+# LINT: stitch together incomplete \-ending lines
+# LINT: swallow here-doc to avoid false positives in content
+boodle wobba \
+ gorgo snoot \
+ wafta snurb <<EOF &&
+quoth the raven,
+nevermore...
+EOF
+
+# LINT: swallow here-doc (EOF is last line of test)
+horticulture <<\EOF
+gomez
+morticia
+wednesday
+pugsly
+EOF
diff --git a/t/chainlint/if-in-loop.expect b/t/chainlint/if-in-loop.expect
new file mode 100644
index 0000000000..03d3ceb22d
--- /dev/null
+++ b/t/chainlint/if-in-loop.expect
@@ -0,0 +1,12 @@
+(
+ for i in a b c
+ do
+ if false
+ then
+?!AMP?! echo "err"
+ exit 1
+?!AMP?! fi
+ foo
+?!AMP?! done
+ bar
+>)
diff --git a/t/chainlint/if-in-loop.test b/t/chainlint/if-in-loop.test
new file mode 100644
index 0000000000..daf22da164
--- /dev/null
+++ b/t/chainlint/if-in-loop.test
@@ -0,0 +1,15 @@
+(
+ for i in a b c
+ do
+ if false
+ then
+# LINT: missing "&&" on 'echo'
+ echo "err"
+ exit 1
+# LINT: missing "&&" on 'fi'
+ fi
+ foo
+# LINT: missing "&&" on 'done'
+ done
+ bar
+)
diff --git a/t/chainlint/if-then-else.expect b/t/chainlint/if-then-else.expect
new file mode 100644
index 0000000000..5953c7bfbc
--- /dev/null
+++ b/t/chainlint/if-then-else.expect
@@ -0,0 +1,19 @@
+(
+ if test -n ""
+ then
+?!AMP?! echo very
+ echo empty
+ elif test -z ""
+ echo foo
+ else
+ echo foo &&
+ cat
+?!AMP?! fi
+ echo poodle
+>) &&
+(
+ if test -n ""; then
+ echo very &&
+?!AMP?! echo empty
+ if
+>)
diff --git a/t/chainlint/if-then-else.test b/t/chainlint/if-then-else.test
new file mode 100644
index 0000000000..9bd8e9a4c6
--- /dev/null
+++ b/t/chainlint/if-then-else.test
@@ -0,0 +1,28 @@
+(
+# LINT: 'if', 'then', 'elif', 'else', 'fi' do not need "&&"
+ if test -n ""
+ then
+# LINT: missing "&&" on 'echo'
+ echo very
+# LINT: last statement before 'elif' does not need "&&"
+ echo empty
+ elif test -z ""
+# LINT: last statement before 'else' does not need "&&"
+ echo foo
+ else
+ echo foo &&
+# LINT: last statement before 'fi' does not need "&&"
+ cat <<-\EOF
+ bar
+ EOF
+# LINT: missing "&&" on 'fi'
+ fi
+ echo poodle
+) &&
+(
+# LINT: 'then' on same line as 'if'
+ if test -n ""; then
+ echo very &&
+ echo empty
+ if
+)
diff --git a/t/chainlint/incomplete-line.expect b/t/chainlint/incomplete-line.expect
new file mode 100644
index 0000000000..2f3ebabdc2
--- /dev/null
+++ b/t/chainlint/incomplete-line.expect
@@ -0,0 +1,4 @@
+line 1 line 2 line 3 line 4 &&
+(
+ line 5 line 6 line 7 line 8
+>)
diff --git a/t/chainlint/incomplete-line.test b/t/chainlint/incomplete-line.test
new file mode 100644
index 0000000000..d856658083
--- /dev/null
+++ b/t/chainlint/incomplete-line.test
@@ -0,0 +1,12 @@
+# LINT: stitch together all incomplete \-ending lines
+line 1 \
+line 2 \
+line 3 \
+line 4 &&
+(
+# LINT: stitch together all incomplete \-ending lines (subshell)
+ line 5 \
+ line 6 \
+ line 7 \
+ line 8
+)
diff --git a/t/chainlint/inline-comment.expect b/t/chainlint/inline-comment.expect
new file mode 100644
index 0000000000..fc9f250ac4
--- /dev/null
+++ b/t/chainlint/inline-comment.expect
@@ -0,0 +1,9 @@
+(
+ foobar &&
+?!AMP?! barfoo
+ flibble "not a # comment"
+>) &&
+
+(
+cd foo &&
+> flibble "not a # comment")
diff --git a/t/chainlint/inline-comment.test b/t/chainlint/inline-comment.test
new file mode 100644
index 0000000000..8f26856e77
--- /dev/null
+++ b/t/chainlint/inline-comment.test
@@ -0,0 +1,12 @@
+(
+# LINT: swallow inline comment (leaving command intact)
+ foobar && # comment 1
+# LINT: mispositioned "&&" (correctly) swallowed with comment
+ barfoo # wrong position for &&
+# LINT: "#" in string not misinterpreted as comment
+ flibble "not a # comment"
+) &&
+
+# LINT: "#" in string in cuddled subshell not misinterpreted as comment
+(cd foo &&
+ flibble "not a # comment")
diff --git a/t/chainlint/loop-in-if.expect b/t/chainlint/loop-in-if.expect
new file mode 100644
index 0000000000..088e622c31
--- /dev/null
+++ b/t/chainlint/loop-in-if.expect
@@ -0,0 +1,12 @@
+(
+ if true
+ then
+ while true
+ do
+?!AMP?! echo "pop"
+ echo "glup"
+?!AMP?! done
+ foo
+?!AMP?! fi
+ bar
+>)
diff --git a/t/chainlint/loop-in-if.test b/t/chainlint/loop-in-if.test
new file mode 100644
index 0000000000..93e8ba8e4d
--- /dev/null
+++ b/t/chainlint/loop-in-if.test
@@ -0,0 +1,15 @@
+(
+ if true
+ then
+ while true
+ do
+# LINT: missing "&&" on 'echo'
+ echo "pop"
+ echo "glup"
+# LINT: missing "&&" on 'done'
+ done
+ foo
+# LINT: missing "&&" on 'fi'
+ fi
+ bar
+)
diff --git a/t/chainlint/multi-line-nested-command-substitution.expect b/t/chainlint/multi-line-nested-command-substitution.expect
new file mode 100644
index 0000000000..19c023b1c8
--- /dev/null
+++ b/t/chainlint/multi-line-nested-command-substitution.expect
@@ -0,0 +1,9 @@
+(
+ foo &&
+ x=$(
+ echo bar |
+ cat
+>> ) &&
+ echo ok
+>) |
+sort
diff --git a/t/chainlint/multi-line-nested-command-substitution.test b/t/chainlint/multi-line-nested-command-substitution.test
new file mode 100644
index 0000000000..ca0620ab6b
--- /dev/null
+++ b/t/chainlint/multi-line-nested-command-substitution.test
@@ -0,0 +1,9 @@
+(
+ foo &&
+ x=$(
+ echo bar |
+ cat
+ ) &&
+ echo ok
+) |
+sort
diff --git a/t/chainlint/multi-line-string.expect b/t/chainlint/multi-line-string.expect
new file mode 100644
index 0000000000..8334c4cc8e
--- /dev/null
+++ b/t/chainlint/multi-line-string.expect
@@ -0,0 +1,9 @@
+(
+ x=line 1 line 2 line 3" &&
+?!AMP?! y=line 1 line2'
+ foobar
+>) &&
+(
+ echo "there's nothing to see here" &&
+ exit
+>)
diff --git a/t/chainlint/multi-line-string.test b/t/chainlint/multi-line-string.test
new file mode 100644
index 0000000000..14cb44d51c
--- /dev/null
+++ b/t/chainlint/multi-line-string.test
@@ -0,0 +1,15 @@
+(
+ x="line 1
+ line 2
+ line 3" &&
+# LINT: missing "&&" on assignment
+ y='line 1
+ line2'
+ foobar
+) &&
+(
+# LINT: apostrophe (in a contraction) within string not misinterpreted as
+# LINT: starting multi-line single-quoted string
+ echo "there's nothing to see here" &&
+ exit
+)
diff --git a/t/chainlint/negated-one-liner.expect b/t/chainlint/negated-one-liner.expect
new file mode 100644
index 0000000000..cf18429d03
--- /dev/null
+++ b/t/chainlint/negated-one-liner.expect
@@ -0,0 +1,5 @@
+! (foo && bar) &&
+! (foo && bar) >baz &&
+
+?!SEMI?!! (foo; bar) &&
+?!SEMI?!! (foo; bar) >baz
diff --git a/t/chainlint/negated-one-liner.test b/t/chainlint/negated-one-liner.test
new file mode 100644
index 0000000000..c9598e9153
--- /dev/null
+++ b/t/chainlint/negated-one-liner.test
@@ -0,0 +1,7 @@
+# LINT: top-level one-liner subshell
+! (foo && bar) &&
+! (foo && bar) >baz &&
+
+# LINT: top-level one-liner subshell missing internal "&&"
+! (foo; bar) &&
+! (foo; bar) >baz
diff --git a/t/chainlint/nested-cuddled-subshell.expect b/t/chainlint/nested-cuddled-subshell.expect
new file mode 100644
index 0000000000..c2a59ffc33
--- /dev/null
+++ b/t/chainlint/nested-cuddled-subshell.expect
@@ -0,0 +1,19 @@
+(
+ (cd foo &&
+ bar
+>> ) &&
+ (cd foo &&
+ bar
+?!AMP?!>> )
+ (
+ cd foo &&
+>> bar) &&
+ (
+ cd foo &&
+?!AMP?!>> bar)
+ (cd foo &&
+>> bar) &&
+ (cd foo &&
+?!AMP?!>> bar)
+ foobar
+>)
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
+)
diff --git a/t/chainlint/nested-here-doc.expect b/t/chainlint/nested-here-doc.expect
new file mode 100644
index 0000000000..559301e005
--- /dev/null
+++ b/t/chainlint/nested-here-doc.expect
@@ -0,0 +1,5 @@
+(
+ cat &&
+?!AMP?! cat
+ foobar
+>)
diff --git a/t/chainlint/nested-here-doc.test b/t/chainlint/nested-here-doc.test
new file mode 100644
index 0000000000..027e0bb3ff
--- /dev/null
+++ b/t/chainlint/nested-here-doc.test
@@ -0,0 +1,23 @@
+(
+# LINT: inner "EOF" not misintrepreted as closing INPUT_END here-doc
+ cat <<-\INPUT_END &&
+ fish are mice
+ but geese go slow
+ data <<EOF
+ perl is lerp
+ and nothing else
+ EOF
+ toink
+ INPUT_END
+
+# LINT: same but missing "&&"
+ cat <<-\EOT
+ text goes here
+ data <<EOF
+ data goes here
+ EOF
+ more test here
+ EOT
+
+ foobar
+)
diff --git a/t/chainlint/nested-subshell-comment.expect b/t/chainlint/nested-subshell-comment.expect
new file mode 100644
index 0000000000..15b68d4373
--- /dev/null
+++ b/t/chainlint/nested-subshell-comment.expect
@@ -0,0 +1,11 @@
+(
+ foo &&
+ (
+ bar &&
+ # bottles wobble while fiddles gobble
+ # minor numbers of cows (or do they?)
+ baz &&
+ snaff
+?!AMP?!>> )
+ fuzzy
+>)
diff --git a/t/chainlint/nested-subshell-comment.test b/t/chainlint/nested-subshell-comment.test
new file mode 100644
index 0000000000..0ff136ab3c
--- /dev/null
+++ b/t/chainlint/nested-subshell-comment.test
@@ -0,0 +1,13 @@
+(
+ foo &&
+ (
+ bar &&
+# LINT: ")" in comment in nested subshell not misinterpreted as closing ")"
+ # bottles wobble while fiddles gobble
+ # minor numbers of cows (or do they?)
+ baz &&
+ snaff
+# LINT: missing "&&" on ')'
+ )
+ fuzzy
+)
diff --git a/t/chainlint/nested-subshell.expect b/t/chainlint/nested-subshell.expect
new file mode 100644
index 0000000000..c8165ad19e
--- /dev/null
+++ b/t/chainlint/nested-subshell.expect
@@ -0,0 +1,12 @@
+(
+ cd foo &&
+ (
+ echo a &&
+ echo b
+>> ) >file &&
+ cd foo &&
+ (
+ echo a
+ echo b
+>> ) >file
+>)
diff --git a/t/chainlint/nested-subshell.test b/t/chainlint/nested-subshell.test
new file mode 100644
index 0000000000..998b05a47d
--- /dev/null
+++ b/t/chainlint/nested-subshell.test
@@ -0,0 +1,14 @@
+(
+ cd foo &&
+ (
+ echo a &&
+ echo b
+ ) >file &&
+
+ cd foo &&
+ (
+# LINT: nested multi-line subshell not presently checked for missing "&&"
+ echo a
+ echo b
+ ) >file
+)
diff --git a/t/chainlint/one-liner.expect b/t/chainlint/one-liner.expect
new file mode 100644
index 0000000000..237f227349
--- /dev/null
+++ b/t/chainlint/one-liner.expect
@@ -0,0 +1,9 @@
+(foo && bar) &&
+(foo && bar) |
+(foo && bar) >baz &&
+
+?!SEMI?!(foo; bar) &&
+?!SEMI?!(foo; bar) |
+?!SEMI?!(foo; bar) >baz
+
+(foo "bar; baz")
diff --git a/t/chainlint/one-liner.test b/t/chainlint/one-liner.test
new file mode 100644
index 0000000000..ec9acb9825
--- /dev/null
+++ b/t/chainlint/one-liner.test
@@ -0,0 +1,12 @@
+# LINT: top-level one-liner subshell
+(foo && bar) &&
+(foo && bar) |
+(foo && bar) >baz &&
+
+# LINT: top-level one-liner subshell missing internal "&&"
+(foo; bar) &&
+(foo; bar) |
+(foo; bar) >baz
+
+# LINT: ";" in string not misinterpreted as broken &&-chain
+(foo "bar; baz")
diff --git a/t/chainlint/p4-filespec.expect b/t/chainlint/p4-filespec.expect
new file mode 100644
index 0000000000..98b3d881fd
--- /dev/null
+++ b/t/chainlint/p4-filespec.expect
@@ -0,0 +1,4 @@
+(
+ p4 print -1 //depot/fiddle#42 >file &&
+ foobar
+>)
diff --git a/t/chainlint/p4-filespec.test b/t/chainlint/p4-filespec.test
new file mode 100644
index 0000000000..4fd2d6e2b8
--- /dev/null
+++ b/t/chainlint/p4-filespec.test
@@ -0,0 +1,5 @@
+(
+# LINT: Perforce revspec in filespec not misinterpreted as in-line comment
+ p4 print -1 //depot/fiddle#42 >file &&
+ foobar
+)
diff --git a/t/chainlint/pipe.expect b/t/chainlint/pipe.expect
new file mode 100644
index 0000000000..211b901dbc
--- /dev/null
+++ b/t/chainlint/pipe.expect
@@ -0,0 +1,8 @@
+(
+ foo |
+ bar |
+ baz &&
+ fish |
+?!AMP?! cow
+ sunder
+>)
diff --git a/t/chainlint/pipe.test b/t/chainlint/pipe.test
new file mode 100644
index 0000000000..e6af4de916
--- /dev/null
+++ b/t/chainlint/pipe.test
@@ -0,0 +1,12 @@
+(
+# LINT: no "&&" needed on line ending with "|"
+ foo |
+ bar |
+ baz &&
+
+# LINT: final line of pipe sequence ('cow') lacking "&&"
+ fish |
+ cow
+
+ sunder
+)
diff --git a/t/chainlint/semicolon.expect b/t/chainlint/semicolon.expect
new file mode 100644
index 0000000000..1d79384606
--- /dev/null
+++ b/t/chainlint/semicolon.expect
@@ -0,0 +1,20 @@
+(
+?!AMP?!?!SEMI?! cat foo ; echo bar
+?!SEMI?! cat foo ; echo bar
+>) &&
+(
+?!SEMI?! cat foo ; echo bar &&
+?!SEMI?! cat foo ; echo bar
+>) &&
+(
+ echo "foo; bar" &&
+?!SEMI?! cat foo; echo bar
+>) &&
+(
+?!SEMI?! foo;
+>) &&
+(
+cd foo &&
+ for i in a b c; do
+?!SEMI?! echo;
+> done)
diff --git a/t/chainlint/semicolon.test b/t/chainlint/semicolon.test
new file mode 100644
index 0000000000..d82c8ebbc0
--- /dev/null
+++ b/t/chainlint/semicolon.test
@@ -0,0 +1,25 @@
+(
+# LINT: missing internal "&&" and ending "&&"
+ cat foo ; echo bar
+# LINT: final statement before ")" only missing internal "&&"
+ cat foo ; echo bar
+) &&
+(
+# LINT: missing internal "&&"
+ cat foo ; echo bar &&
+ cat foo ; echo bar
+) &&
+(
+# LINT: not fooled by semicolon in string
+ echo "foo; bar" &&
+ cat foo; echo bar
+) &&
+(
+# LINT: unnecessary terminating semicolon
+ foo;
+) &&
+(cd foo &&
+ for i in a b c; do
+# LINT: unnecessary terminating semicolon
+ echo;
+ done)
diff --git a/t/chainlint/subshell-here-doc.expect b/t/chainlint/subshell-here-doc.expect
new file mode 100644
index 0000000000..19d5aff233
--- /dev/null
+++ b/t/chainlint/subshell-here-doc.expect
@@ -0,0 +1,5 @@
+(
+ echo wobba gorgo snoot wafta snurb &&
+?!AMP?! cat >bip
+ echo >bop
+>)
diff --git a/t/chainlint/subshell-here-doc.test b/t/chainlint/subshell-here-doc.test
new file mode 100644
index 0000000000..9c3564c247
--- /dev/null
+++ b/t/chainlint/subshell-here-doc.test
@@ -0,0 +1,23 @@
+(
+# LINT: stitch together incomplete \-ending lines
+# LINT: swallow here-doc to avoid false positives in content
+ echo wobba \
+ gorgo snoot \
+ wafta snurb <<-EOF &&
+ quoth the raven,
+ nevermore...
+ EOF
+
+# LINT: missing "&&" on 'cat'
+ cat <<EOF >bip
+ fish fly high
+ EOF
+
+# LINT: swallow here-doc (EOF is last line of subshell)
+ echo <<-\EOF >bop
+ gomez
+ morticia
+ wednesday
+ pugsly
+ EOF
+)
diff --git a/t/chainlint/subshell-one-liner.expect b/t/chainlint/subshell-one-liner.expect
new file mode 100644
index 0000000000..51162821d7
--- /dev/null
+++ b/t/chainlint/subshell-one-liner.expect
@@ -0,0 +1,14 @@
+(
+ (foo && bar) &&
+ (foo && bar) |
+ (foo && bar) >baz &&
+?!SEMI?! (foo; bar) &&
+?!SEMI?! (foo; bar) |
+?!SEMI?! (foo; bar) >baz &&
+ (foo || exit 1) &&
+ (foo || exit 1) |
+ (foo || exit 1) >baz &&
+?!AMP?! (foo && bar)
+?!AMP?!?!SEMI?! (foo && bar; baz)
+ foobar
+>)
diff --git a/t/chainlint/subshell-one-liner.test b/t/chainlint/subshell-one-liner.test
new file mode 100644
index 0000000000..37fa643c20
--- /dev/null
+++ b/t/chainlint/subshell-one-liner.test
@@ -0,0 +1,24 @@
+(
+# LINT: nested one-liner subshell
+ (foo && bar) &&
+ (foo && bar) |
+ (foo && bar) >baz &&
+
+# LINT: nested one-liner subshell missing internal "&&"
+ (foo; bar) &&
+ (foo; bar) |
+ (foo; bar) >baz &&
+
+# LINT: nested one-liner subshell with "|| exit"
+ (foo || exit 1) &&
+ (foo || exit 1) |
+ (foo || exit 1) >baz &&
+
+# LINT: nested one-liner subshell lacking ending "&&"
+ (foo && bar)
+
+# LINT: nested one-liner subshell missing internal "&&" and lacking ending "&&"
+ (foo && bar; baz)
+
+ foobar
+)
diff --git a/t/chainlint/while-loop.expect b/t/chainlint/while-loop.expect
new file mode 100644
index 0000000000..13cff2c0a5
--- /dev/null
+++ b/t/chainlint/while-loop.expect
@@ -0,0 +1,11 @@
+(
+ while true
+ do
+?!AMP?! echo foo
+ cat
+?!AMP?! done
+ while true; do
+ echo foo &&
+ cat bar
+ done
+>)
diff --git a/t/chainlint/while-loop.test b/t/chainlint/while-loop.test
new file mode 100644
index 0000000000..f1df085bf0
--- /dev/null
+++ b/t/chainlint/while-loop.test
@@ -0,0 +1,19 @@
+(
+# LINT: 'while, 'do', 'done' do not need "&&"
+ while true
+ do
+# LINT: missing "&&" on 'echo'
+ echo foo
+# LINT: last statement of while does not need "&&"
+ cat <<-\EOF
+ bar
+ EOF
+# LINT: missing "&&" on 'done'
+ done
+
+# LINT: 'do' on same line as 'while'
+ while true; do
+ echo foo &&
+ cat bar
+ done
+)
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 28315706be..78f7097746 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -675,7 +675,8 @@ test_run_ () {
trace=
# 117 is magic because it is unlikely to match the exit
# code of other programs
- if test "OK-117" != "$(test_eval_ "(exit 117) && $1${LF}${LF}echo OK-\$?" 3>&1)"
+ if $(printf '%s\n' "$1" | sed -f "$GIT_BUILD_DIR/t/chainlint.sed" | grep -q '?![A-Z][A-Z]*?!') ||
+ test "OK-117" != "$(test_eval_ "(exit 117) && $1${LF}${LF}echo OK-\$?" 3>&1)"
then
error "bug in the test script: broken &&-chain or run-away HERE-DOC: $1"
fi