Merge branch 'ep/avoid-test-a-o'

Update tests and scripts to avoid "test ... -a ...", which is often
more error-prone than "test ... && test ...".

Squashed misconversion fix-up into git-submodule.sh updates.

* ep/avoid-test-a-o:
  git-submodule.sh: avoid "echo" path-like values
  git-submodule.sh: avoid "test <cond> -a/-o <cond>"
  t/test-lib-functions.sh: avoid "test <cond> -a/-o <cond>"
  t/t9814-git-p4-rename.sh: avoid "test <cond> -a/-o <cond>"
  t/t5538-push-shallow.sh: avoid "test <cond> -a/-o <cond>"
  t/t5403-post-checkout-hook.sh: avoid "test <cond> -a/-o <cond>"
  t/t5000-tar-tree.sh: avoid "test <cond> -a/-o <cond>"
  t/t4102-apply-rename.sh: avoid "test <cond> -a/-o <cond>"
  t/t0026-eol-config.sh: avoid "test <cond> -a/-o <cond>"
  t/t0025-crlf-auto.sh: avoid "test <cond> -a/-o <cond>"
  t/lib-httpd.sh: avoid "test <cond> -a/-o <cond>"
  git-rebase--interactive.sh: avoid "test <cond> -a/-o <cond>"
  git-mergetool.sh: avoid "test <cond> -a/-o <cond>"
  git-bisect.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-resolve.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-repack.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-merge.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-commit.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-clone.sh: avoid "test <cond> -a/-o <cond>"
  check_bindir: avoid "test <cond> -a/-o <cond>"

Author: gitster

Diff for: check_bindir

@@ -2,7 +2,7 @@
 bindir="$1"
 gitexecdir="$2"
 gitcmd="$3"
-if test "$bindir" != "$gitexecdir" -a -x "$gitcmd"
+if test "$bindir" != "$gitexecdir" && test -x "$gitcmd"
 then
 	echo
 	echo "!! You have installed git-* commands to new gitexecdir."

Diff for: contrib/examples/git-clone.sh

@@ -516,7 +516,7 @@ then
 
 	case "$no_checkout" in
 	'')
-		test "z$quiet" = z -a "z$no_progress" = z && v=-v || v=
+		test "z$quiet" = z && test "z$no_progress" = z && v=-v || v=
 		git read-tree -m -u $v HEAD HEAD
 	esac
 fi

Diff for: contrib/examples/git-commit.sh

@@ -51,7 +51,7 @@ run_status () {
 		export GIT_INDEX_FILE
 	fi
 
-	if test "$status_only" = "t" -o "$use_status_color" = "t"; then
+	if test "$status_only" = "t" || test "$use_status_color" = "t"; then
 		color=
 	else
 		color=--nocolor
@@ -296,7 +296,7 @@ t,,,[1-9]*)
 	die "No paths with -i does not make sense." ;;
 esac
 
-if test ! -z "$templatefile" -a -z "$log_given"
+if test ! -z "$templatefile" && test -z "$log_given"
 then
 	if test ! -f "$templatefile"
 	then

Diff for: contrib/examples/git-merge.sh

@@ -161,7 +161,7 @@ merge_name () {
 			return
 		fi
 	fi
-	if test "$remote" = "FETCH_HEAD" -a -r "$GIT_DIR/FETCH_HEAD"
+	if test "$remote" = "FETCH_HEAD" && test -r "$GIT_DIR/FETCH_HEAD"
 	then
 		sed -e 's/	not-for-merge	/		/' -e 1q \
 			"$GIT_DIR/FETCH_HEAD"
@@ -527,7 +527,7 @@ do
 		git diff-files --name-only
 		git ls-files --unmerged
 	    } | wc -l`
-	    if test $best_cnt -le 0 -o $cnt -le $best_cnt
+	    if test $best_cnt -le 0 || test $cnt -le $best_cnt
 	    then
 		best_strategy=$strategy
 		best_cnt=$cnt

Diff for: contrib/examples/git-repack.sh

@@ -76,8 +76,8 @@ case ",$all_into_one," in
 				existing="$existing $e"
 			fi
 		done
-		if test -n "$existing" -a -n "$unpack_unreachable" -a \
-			-n "$remove_redundant"
+		if test -n "$existing" && test -n "$unpack_unreachable" && \
+			test -n "$remove_redundant"
 		then
 			# This may have arbitrary user arguments, so we
 			# have to protect it against whitespace splitting

Diff for: contrib/examples/git-resolve.sh

@@ -76,7 +76,7 @@ case "$common" in
 			2>/dev/null || continue
 		# Count the paths that are unmerged.
 		cnt=$(GIT_INDEX_FILE=$G git ls-files --unmerged | wc -l)
-		if test $best_cnt -le 0 -o $cnt -le $best_cnt
+		if test $best_cnt -le 0 || test $cnt -le $best_cnt
 		then
 			best=$c
 			best_cnt=$cnt

Diff for: git-bisect.sh

@@ -408,7 +408,7 @@ bisect_replay () {
 	bisect_reset
 	while read git bisect command rev
 	do
-		test "$git $bisect" = "git bisect" -o "$git" = "git-bisect" || continue
+		test "$git $bisect" = "git bisect" || test "$git" = "git-bisect" || continue
 		if test "$git" = "git-bisect"
 		then
 			rev="$command"

Diff for: git-mergetool.sh

@@ -205,7 +205,7 @@ checkout_staged_file () {
 		"$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
 		: '\([^	]*\)	')
 
-	if test $? -eq 0 -a -n "$tmpfile"
+	if test $? -eq 0 && test -n "$tmpfile"
 	then
 		mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
 	else
@@ -256,7 +256,7 @@ merge_file () {
 	checkout_staged_file 2 "$MERGED" "$LOCAL"
 	checkout_staged_file 3 "$MERGED" "$REMOTE"
 
-	if test -z "$local_mode" -o -z "$remote_mode"
+	if test -z "$local_mode" || test -z "$remote_mode"
 	then
 		echo "Deleted merge conflict for '$MERGED':"
 		describe_file "$local_mode" "local" "$LOCAL"

Diff for: git-rebase--interactive.sh

@@ -1013,7 +1013,7 @@ then
 	git rev-list $revisions |
 	while read rev
 	do
-		if test -f "$rewritten"/$rev -a "$(sane_grep "$rev" "$state_dir"/not-cherry-picks)" = ""
+		if test -f "$rewritten"/$rev && test "$(sane_grep "$rev" "$state_dir"/not-cherry-picks)" = ""
 		then
 			# Use -f2 because if rev-list is telling us this commit is
 			# not worthwhile, we don't want to track its multiple heads,

Diff for: git-submodule.sh

@@ -235,7 +235,7 @@ module_name()
 		sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
 	test -z "$name" &&
 	die "$(eval_gettext "No submodule mapping found in .gitmodules for path '\$sm_path'")"
-	echo "$name"
+	printf '%s\n' "$name"
 }
 
 #
@@ -305,10 +305,10 @@ module_clone()
 	b=${b%/}
 
 	# Turn each leading "*/" component into "../"
-	rel=$(echo $b | sed -e 's|[^/][^/]*|..|g')
-	echo "gitdir: $rel/$a" >"$sm_path/.git"
+	rel=$(printf '%s\n' "$b" | sed -e 's|[^/][^/]*|..|g')
+	printf '%s\n' "gitdir: $rel/$a" >"$sm_path/.git"
 
-	rel=$(echo $a | sed -e 's|[^/][^/]*|..|g')
+	rel=$(printf '%s\n' "$a" | sed -e 's|[^/][^/]*|..|g')
 	(clear_local_git_env; cd "$sm_path" && GIT_WORK_TREE=. git config core.worktree "$rel/$b")
 }
 
@@ -389,11 +389,11 @@ cmd_add()
 	sm_path=$2
 
 	if test -z "$sm_path"; then
-		sm_path=$(echo "$repo" |
+		sm_path=$(printf '%s\n' "$repo" |
 			sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
 	fi
 
-	if test -z "$repo" -o -z "$sm_path"; then
+	if test -z "$repo" || test -z "$sm_path"; then
 		usage
 	fi
 
@@ -450,7 +450,7 @@ Use -f if you really want to add it." >&2
 	# perhaps the path exists and is already a git repo, else clone it
 	if test -e "$sm_path"
 	then
-		if test -d "$sm_path"/.git -o -f "$sm_path"/.git
+		if test -d "$sm_path"/.git || test -f "$sm_path"/.git
 		then
 			eval_gettextln "Adding existing repo at '\$sm_path' to the index"
 		else
@@ -832,7 +832,7 @@ Maybe you want to use 'update --init'?")"
 			continue
 		fi
 
-		if ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
+		if ! test -d "$sm_path"/.git && ! test -f "$sm_path"/.git
 		then
 			module_clone "$sm_path" "$name" "$url" "$reference" "$depth" || exit
 			cloned_modules="$cloned_modules;$name"
@@ -857,11 +857,11 @@ Maybe you want to use 'update --init'?")"
 			die "$(eval_gettext "Unable to find current ${remote_name}/${branch} revision in submodule path '\$sm_path'")"
 		fi
 
-		if test "$subsha1" != "$sha1" -o -n "$force"
+		if test "$subsha1" != "$sha1" || test -n "$force"
 		then
 			subforce=$force
 			# If we don't already have a -f flag and the submodule has never been checked out
-			if test -z "$subsha1" -a -z "$force"
+			if test -z "$subsha1" && test -z "$force"
 			then
 				subforce="-f"
 			fi
@@ -1031,7 +1031,7 @@ cmd_summary() {
 	then
 		head=$rev
 		test $# = 0 || shift
-	elif test -z "$1" -o "$1" = "HEAD"
+	elif test -z "$1" || test "$1" = "HEAD"
 	then
 		# before the first commit: compare with an empty tree
 		head=$(git hash-object -w -t tree --stdin </dev/null)
@@ -1056,17 +1056,21 @@ cmd_summary() {
 		while read mod_src mod_dst sha1_src sha1_dst status sm_path
 		do
 			# Always show modules deleted or type-changed (blob<->module)
-			test $status = D -o $status = T && echo "$sm_path" && continue
+			if test "$status" = D || test "$status" = T
+			then
+				printf '%s\n' "$sm_path"
+				continue
+			fi
 			# Respect the ignore setting for --for-status.
 			if test -n "$for_status"
 			then
 				name=$(module_name "$sm_path")
 				ignore_config=$(get_submodule_config "$name" ignore none)
-				test $status != A -a $ignore_config = all && continue
+				test $status != A && test $ignore_config = all && continue
 			fi
 			# Also show added or modified modules which are checked out
 			GIT_DIR="$sm_path/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
-			echo "$sm_path"
+			printf '%s\n' "$sm_path"
 		done
 	)
 
@@ -1122,7 +1126,7 @@ cmd_summary() {
 		*)
 			errmsg=
 			total_commits=$(
-			if test $mod_src = 160000 -a $mod_dst = 160000
+			if test $mod_src = 160000 && test $mod_dst = 160000
 			then
 				range="$sha1_src...$sha1_dst"
 			elif test $mod_src = 160000
@@ -1159,7 +1163,7 @@ cmd_summary() {
 			# i.e. deleted or changed to blob
 			test $mod_dst = 160000 && echo "$errmsg"
 		else
-			if test $mod_src = 160000 -a $mod_dst = 160000
+			if test $mod_src = 160000 && test $mod_dst = 160000
 			then
 				limit=
 				test $summary_limit -gt 0 && limit="-$summary_limit"
@@ -1230,7 +1234,11 @@ cmd_status()
 			say "U$sha1 $displaypath"
 			continue
 		fi
-		if test -z "$url" || ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
+		if test -z "$url" ||
+		{
+			! test -d "$sm_path"/.git &&
+			! test -f "$sm_path"/.git
+		}
 		then
 			say "-$sha1 $displaypath"
 			continue;
@@ -1303,7 +1311,7 @@ cmd_sync()
 		./*|../*)
 			# rewrite foo/bar as ../.. to find path from
 			# submodule work tree to superproject work tree
-			up_path="$(echo "$sm_path" | sed "s/[^/][^/]*/../g")" &&
+			up_path="$(printf '%s\n' "$sm_path" | sed "s/[^/][^/]*/../g")" &&
 			# guarantee a trailing /
 			up_path=${up_path%/}/ &&
 			# path from submodule work tree to submodule origin repo
@@ -1399,7 +1407,7 @@ then
 fi
 
 # "--cached" is accepted only by "status" and "summary"
-if test -n "$cached" && test "$command" != status -a "$command" != summary
+if test -n "$cached" && test "$command" != status && test "$command" != summary
 then
 	usage
 fi

Diff for: t/lib-httpd.sh

@@ -142,7 +142,7 @@ prepare_httpd() {
 	HTTPD_URL_USER=$HTTPD_PROTO://user%40host@$HTTPD_DEST
 	HTTPD_URL_USER_PASS=$HTTPD_PROTO://user%40host:pass%40host@$HTTPD_DEST
 
-	if test -n "$LIB_HTTPD_DAV" -o -n "$LIB_HTTPD_SVN"
+	if test -n "$LIB_HTTPD_DAV" || test -n "$LIB_HTTPD_SVN"
 	then
 		HTTPD_PARA="$HTTPD_PARA -DDAV"
 

Diff for: t/t0025-crlf-auto.sh

@@ -36,7 +36,7 @@ test_expect_success 'default settings cause no changes' '
 	onediff=$(git diff one) &&
 	twodiff=$(git diff two) &&
 	threediff=$(git diff three) &&
-	test -z "$onediff" -a -z "$twodiff" -a -z "$threediff"
+	test -z "$onediff" && test -z "$twodiff" && test -z "$threediff"
 '
 
 test_expect_success 'crlf=true causes a CRLF file to be normalized' '
@@ -111,7 +111,7 @@ test_expect_success 'autocrlf=true does not normalize CRLF files' '
 	onediff=$(git diff one) &&
 	twodiff=$(git diff two) &&
 	threediff=$(git diff three) &&
-	test -z "$onediff" -a -z "$twodiff" -a -z "$threediff"
+	test -z "$onediff" && test -z "$twodiff" && test -z "$threediff"
 '
 
 test_expect_success 'text=auto, autocrlf=true _does_ normalize CRLF files' '
@@ -126,7 +126,7 @@ test_expect_success 'text=auto, autocrlf=true _does_ normalize CRLF files' '
 	onediff=$(git diff one) &&
 	twodiff=$(git diff two) &&
 	threediff=$(git diff three) &&
-	test -z "$onediff" -a -n "$twodiff" -a -z "$threediff"
+	test -z "$onediff" && test -n "$twodiff" && test -z "$threediff"
 '
 
 test_expect_success 'text=auto, autocrlf=true does not normalize binary files' '

Diff for: t/t0026-eol-config.sh

@@ -36,7 +36,7 @@ test_expect_success 'eol=lf puts LFs in normalized file' '
 	! has_cr two &&
 	onediff=$(git diff one) &&
 	twodiff=$(git diff two) &&
-	test -z "$onediff" -a -z "$twodiff"
+	test -z "$onediff" && test -z "$twodiff"
 '
 
 test_expect_success 'eol=crlf puts CRLFs in normalized file' '
@@ -49,7 +49,7 @@ test_expect_success 'eol=crlf puts CRLFs in normalized file' '
 	! has_cr two &&
 	onediff=$(git diff one) &&
 	twodiff=$(git diff two) &&
-	test -z "$onediff" -a -z "$twodiff"
+	test -z "$onediff" && test -z "$twodiff"
 '
 
 test_expect_success 'autocrlf=true overrides eol=lf' '
@@ -63,7 +63,7 @@ test_expect_success 'autocrlf=true overrides eol=lf' '
 	has_cr two &&
 	onediff=$(git diff one) &&
 	twodiff=$(git diff two) &&
-	test -z "$onediff" -a -z "$twodiff"
+	test -z "$onediff" && test -z "$twodiff"
 '
 
 test_expect_success 'autocrlf=true overrides unset eol' '
@@ -77,7 +77,7 @@ test_expect_success 'autocrlf=true overrides unset eol' '
 	has_cr two &&
 	onediff=$(git diff one) &&
 	twodiff=$(git diff two) &&
-	test -z "$onediff" -a -z "$twodiff"
+	test -z "$onediff" && test -z "$twodiff"
 '
 
 test_done

Diff for: t/t4102-apply-rename.sh

@@ -52,6 +52,6 @@ EOF
 
 test_expect_success 'apply copy' \
     'git apply --index --stat --summary --apply test-patch &&
-     test "$(cat bar)" = "This is bar" -a "$(cat foo)" = "This is foo"'
+     test "$(cat bar)" = "This is bar" && test "$(cat foo)" = "This is foo"'
 
 test_done

Diff for: t/t5000-tar-tree.sh

@@ -72,7 +72,7 @@ check_tar() {
 			for header in *.paxheader
 			do
 				data=${header%.paxheader}.data &&
-				if test -h $data -o -e $data
+				if test -h $data || test -e $data
 				then
 					path=$(get_pax_header $header path) &&
 					if test -n "$path"

Diff for: t/t5403-post-checkout-hook.sh

@@ -39,7 +39,7 @@ test_expect_success 'post-checkout receives the right arguments with HEAD unchan
 	old=$(awk "{print \$1}" clone1/.git/post-checkout.args) &&
 	new=$(awk "{print \$2}" clone1/.git/post-checkout.args) &&
 	flag=$(awk "{print \$3}" clone1/.git/post-checkout.args) &&
-	test $old = $new -a $flag = 1
+	test $old = $new && test $flag = 1
 '
 
 test_expect_success 'post-checkout runs as expected ' '
@@ -52,23 +52,23 @@ test_expect_success 'post-checkout args are correct with git checkout -b ' '
 	old=$(awk "{print \$1}" clone1/.git/post-checkout.args) &&
 	new=$(awk "{print \$2}" clone1/.git/post-checkout.args) &&
 	flag=$(awk "{print \$3}" clone1/.git/post-checkout.args) &&
-	test $old = $new -a $flag = 1
+	test $old = $new && test $flag = 1
 '
 
 test_expect_success 'post-checkout receives the right args with HEAD changed ' '
 	GIT_DIR=clone2/.git git checkout new2 &&
 	old=$(awk "{print \$1}" clone2/.git/post-checkout.args) &&
 	new=$(awk "{print \$2}" clone2/.git/post-checkout.args) &&
 	flag=$(awk "{print \$3}" clone2/.git/post-checkout.args) &&
-	test $old != $new -a $flag = 1
+	test $old != $new && test $flag = 1
 '
 
 test_expect_success 'post-checkout receives the right args when not switching branches ' '
 	GIT_DIR=clone2/.git git checkout master b &&
 	old=$(awk "{print \$1}" clone2/.git/post-checkout.args) &&
 	new=$(awk "{print \$2}" clone2/.git/post-checkout.args) &&
 	flag=$(awk "{print \$3}" clone2/.git/post-checkout.args) &&
-	test $old = $new -a $flag = 0
+	test $old = $new && test $flag = 0
 '
 
 if test "$(git config --bool core.filemode)" = true; then