- Moved the flake8 section from setup.cfg to tox.ini (more appropriate).

- Updated pre-commit hooks, added shellcheck.
- Corrected issues in test.sh found by shellcheck.
- Added bandit and pre-commit to the usual (local) Tox run.

.pre-commit-config.yaml

 -   repo: git://github.com/pre-commit/pre-commit-hooks
-    sha: v0.7.1
+    sha: v0.8.0
     hooks:
     -   id: check-added-large-files
-    -   id: check-json
-    -   id: check-xml
     -   id: check-yaml
     -   id: check-merge-conflict
     -   id: flake8
     -   id: check-symlinks
 -   repo: https://www.shore.co.il/git/shell-pre-commit/
-    sha: v0.5.3
+    sha: v0.5.4
     hooks:
     -   id: shell-lint
+    -   id: shellcheck

setup.cfg

 [bdist_wheel]
 universal=1
-
-[flake8]
-exclude = .tox,*.egg,build,data
-select = E,W,F

tests.sh

 #!/bin/sh
 set -eu
 
-export infile="$(mktemp)"
-export outfile="$(mktemp)"
+infile="$(mktemp)"
+outfile="$(mktemp)"
+export infile outfile
 
 echo Basic test.
 export name='John'
-test "$(echo 'Hello {{ name if name is defined else 'world' }}.' | template)" = "Hello John."
+test "$(echo 'Hello {{ name if name is defined else "world" }}.' | template)" = "Hello John."
 
 echo Testing arguments and reading/ writing to file.
 echo '{{ name }}' > "$infile"
 export name='John'
 template --output "$outfile" "$infile"
-test "$(cat $outfile)" = "$name"
+test "$(cat "$outfile")" = "$name"
 
 rm "$infile" "$outfile"

tox.ini

 [tox]
-envlist = py{2,3}
+envlist = py{2,3},docs,bandit,pre-commit
 
 [travis]
 python =
@@ -53,3 +53,7 @@ commands = bandit --recursive ./ --exclude .tox/,build/,dist/,template.egg-info
 basepython = python
 deps = pre-commit
 commands = pre-commit run --all-files
+
+[flake8]
+exclude = .tox,*.egg,build,data
+select = E,W,F