sort fallback

readme.md

@@ -56,7 +56,6 @@ and use the incomplete sort that is installed on your system. This is not a
 big deal; if your test files all start with alphanumeric letters, the output
 should look fine.
 
-
 ## Install
 Urchin is contained in a single file, so you can install it by copying it to a
 directory in your `PATH`. For example, you can run the following as root.

urchin

@@ -56,6 +56,13 @@ if [ -n "${ZSH_VERSION}" ]; then
 fi
 
 
+sort_python() {
+  python -c 'import sys
+for line in sorted(sys.stdin.readlines()):
+    sys.stdout.write(line)
+'
+}
+
 # All temporary files go here
 urchin_tmp=$(mktemp -d)
 > "${urchin_tmp}/log"
@@ -274,9 +281,7 @@ report_outcome() {
   # Use a temporary file rather than a pipe because a pipe starts a sub-shell
   # and thus makes the above variables local.
   sorted_log_file=$(mktemp)
-
-  # GNU sort is broken. Oh well.
-  sort "${log_file}" > "${sorted_log_file}"
+  "${sort}" "${log_file}" > "${sorted_log_file}"
 
   while read line; do
     abspath=$(echo "${line}" | cut -f1)
@@ -580,10 +585,17 @@ main() {
   # Warn about strange sort commands
   weird_string='@ b\n- d\n? a\n~ c\n! e\n'
   sort_result="$(printf "${weird_string}" | sort | cut -d\  -f2 | tr -d '\n')"
-  if test "${sort_result}" != edacb; then
-    echo 'Your version of sort sorts in dictionary order (-d) by default.
-  Depending on how you name your tests, your Urchin output may look strange.
-  If this is a problem, install BusyBox or BSD coreutils.' >&2
+  if test "${sort_result}" = edacb; then
+    sort=sort
+  else
+    if which python > /dev/null; then
+      sort=sort_python
+    else
+      echo 'Your version of sort sorts in dictionary order (-d) by default.
+    Depending on how you name your tests, your Urchin output may look strange.
+    If this is a problem, install BusyBox or BSD coreutils.' >&2
+      sort=sort
+    fi
   fi
 
   if test -n "${urchin_timeout}"; then