From 0f0ac50718aa0283a702aecbba9c8cfcf6fdb41a Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Wed, 2 Aug 2017 14:54:19 +0200
Subject: bin/strict-bashism-check new

---
 bin/strict-bashism-check | 82 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100755 bin/strict-bashism-check

(limited to 'bin')

diff --git a/bin/strict-bashism-check b/bin/strict-bashism-check
new file mode 100755
index 0000000..a6694f4
--- /dev/null
+++ b/bin/strict-bashism-check
@@ -0,0 +1,82 @@
+#!/bin/sh
+
+if git rev-parse --verify HEAD >/dev/null 2>&1
+then
+  against=HEAD
+else
+  # Initial commit: diff against an empty tree object
+  against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+fi
+
+# If you want to allow non-ASCII filenames set this variable to true.
+allownonascii=$(git config --bool hooks.allownonascii)
+
+# Redirect output to stderr.
+exec 1>&2
+
+# Cross platform projects tend to avoid non-ASCII filenames; prevent
+# them from being added to the repository. We exploit the fact that the
+# printable range starts at the space character and ends with tilde.
+if [ "$allownonascii" != "true" ] &&
+  # Note that the use of brackets around a tr range is ok here, (it's
+  # even required, for portability to Solaris 10's /usr/bin/tr), since
+  # the square bracket bytes happen to fall in the designated range.
+  test $(git diff --cached --name-only --diff-filter=A -z $against |
+    LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0
+then
+  cat <<\EOF
+Error: Attempt to add a non-ASCII file name.
+
+This can cause problems if you want to work with people on other platforms.
+
+To be portable it is advisable to rename the file.
+
+If you know what you are doing you can disable this check using:
+
+  git config hooks.allownonascii true
+EOF
+  exit 1
+fi
+
+# If there are whitespace errors, print the offending file names and fail.
+git diff-index --check --cached $against -- || exit $?
+
+tree=$(git write-tree)
+
+tmp_dir=$(mktemp -d)
+trap 'rm -rf --one-file-system "${tmp_dir}"' EXIT
+
+git archive "${tree}" | \
+  tar -C "${tmp_dir}" -x
+
+errors=$(
+  cd "${tmp_dir}"
+  find "bin" "conf" -type f -not -executable -not -name '.gitignore'
+)
+
+if [ -n "${errors}" ]; then
+  >&2 echo 'Non-executable files found in bin/ or conf/:'
+  >&2 echo "${errors}"
+  exit 1
+fi
+
+errors=$(
+  find bin conf -type f -executable -exec grep -H '="\$(' {} \;
+)
+
+if [ -n "${errors}" ]; then
+  >&2 echo 'Unnecessary quotes found:'
+  >&2 echo "${errors}"
+  exit 1
+fi
+
+errors=$(
+  cd "${tmp_dir}"
+  checkbashisms bin/* conf/* 2>&1
+)
+
+if [ -n "${errors}" ]; then
+  >&2 echo 'possible bashisms found:'
+  >&2 echo "${errors}"
+  exit 1
+fi
-- 
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