safety checks for lint-man.sh

diff --git a/Makefile.am b/Makefile.am
index daa2946a7e0ddccc9466a83a4bc5a8b924924cc4..3c1d8c8fc076e1a6ea8c83caf17718829b2b82b2 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -42,3 +42,5 @@ check-python:
 check-man:
        printf "Running lint-man.sh in doc/man.\n"
        @cd $(top_srcdir)/doc/man ; $(top_srcdir)/../../contrib/scripts/lint-man.sh || true
+
+check-linters: check-bashism check-python check-man

diff --git a/contrib/scripts/lint-man.sh b/contrib/scripts/lint-man.sh
index 6a9f544f4a05a1833282054b0462e3ed43fecd88..1a3f1514a93aed062ea2c4860bd1196bdde93910 100755 (executable)
--- a/contrib/scripts/lint-man.sh
+++ b/contrib/scripts/lint-man.sh
@@ -3,16 +3,29 @@
 # SPDX-License-Identifier: 0BSD
 # spit out ONLY error messages using groff.
 
-echo "groff check"
-for f in `find . -name \*\.[1-9]`;
-do
-    LC_ALL=en_US.UTF-8 \
-    MANROFFSEQ='' \
-    MANWIDTH=80 \
-    groff -m mandoc -b -z -w w $f;
-done
+existence()
+{
+    command -v "$1" >/dev/null 2>&1
+}
+
+if existence groff;
+then
+    echo "groff check"
+    for f in `find . -name \*\.[1-9]`;
+    do
+        LC_ALL=en_US.UTF-8 \
+              MANROFFSEQ='' \
+              MANWIDTH=80 \
+              groff -m mandoc -b -z -w w $f;
+    done
+fi
+
 echo "mandoc check"
 # spit out ONLY error messages with mandoc:
-mandoc -T lint `find . -name \*\.[1-9]`
+if existence mandoc;
+then
+    mandoc -T lint `find . -name \*\.[1-9]`
+fi
+
 #LC_ALL=en_US.UTF-8 MANROFFSEQ='' MANWIDTH=80 /run/current-system/profile/bin/man --warnings -E UTF-8 -l -Tutf8 -Z <*.5> >report5.log
 #LC_ALL=en_US.UTF-8 MANROFFSEQ='' MANWIDTH=80 /run/current-system/profile/bin/man --warnings -E UTF-8 -l -Tutf8 -Z <*.1> >report1.log