1 files changed, 126 insertions, 0 deletions
diff --git a/bin/continuous_build.sh b/bin/continuous_build.sh
new file mode 100755
index 0000000..6f47c69
--- /dev/null
+++ b/bin/continuous_build.sh
@@ -0,0 +1,126 @@
+# /bin/sh
+# $Id$
+# vim:et:ft=sh:sts=2:sw=2
+#
+# Copyright 2010 Kate Ward. All Rights Reserved.
+# Author: kate.ward@forestent.com (Kate Ward)
+#
+# Continuous build script for shell library testing.
+#
+# Sample usages:
+# $ blah
+
+# treat unset variables as an error
+set -u
+
+# global constants
+ARGV0=`basename "$0"`
+ARGV0_DIR=`dirname "$0"`
+SHLIB_DIR="${ARGV0_DIR}/../lib"
+
+# load libraries
+. ${SHFLAGS_LIB:-${SHLIB_DIR}/shflags} \
+    || (echo 'unable to load shflags library' >&2; exit 1)
+. ${VERSIONS_LIB:-${SHLIB_DIR}/versions} \
+    || (echo 'unable to load versions library' >&2; exit 1)
+
+OUTPUT_FILE="${VERSIONS_OS_NAME}_${VERSIONS_OS_RELEASE}"
+
+# define flags
+DEFINE_string 'command' '' 'the command to start a build' 'c'
+DEFINE_string 'watch' '' 'file to watch for changes' 'w'
+DEFINE_string 'watch_from' '' 'file containing filenames to watch' 'W'
+DEFINE_string 'output' "${OUTPUT_FILE}" 'output file to write to' 'o'
+DEFINE_string 'output_dir' '.' 'directory to write output file' 'O'
+DEFINE_integer 'pause' 60 'pause between successive runs (sec)' 'p'
+
+FLAGS_HELP="USAGE: ${ARGV0} [flags]"
+
+#------------------------------------------------------------------------------
+# functions
+#
+
+# This function exits the script, optionally printing a message
+#
+# Args:
+#   message: string: an error message to be output (optional)
+# Output:
+#   string: usable flags
+die() {
+  [ $# -ne 0 ] && echo "$@" >&2
+  flags_help
+  exit 1
+}
+
+# Function to give the current date in ISO format
+#
+# Args:
+#   none
+# Output:
+#   string: isodate
+isodate() {
+  date -u '+%Y%m%dT%H%M%SZ'
+}
+
+age() {
+  awkScript=''
+  case ${VERSIONS_OS_NAME} in
+    FreeBSD|Solaris) awkScript='{print $6,$7,$8}' ;;
+    Linux) awkScript='{print $6,$7}' ;;
+    *) echo "unrecognized OS name (${VERSIONS_OS_NAME})" >&2 ;;
+  esac
+  ls -l "$1" |awk "${awkScript}"
+}
+
+#------------------------------------------------------------------------------
+# main
+#
+
+main()
+{
+  # checks
+  [ -n "${FLAGS_command}" ] || die 'command required'
+  [ -z "${FLAGS_watch}" -a -z "${FLAGS_watch_from}" ] \
+    && die 'one of watch or watch_from required'
+  [ -n "${FLAGS_watch}" -a -n "${FLAGS_watch_from}" ] \
+    && die 'only one of watch or watch_from can be specified'
+  [ -r "${FLAGS_watch}" ] || die 'unable to read watch file'
+  [ -w "${FLAGS_output_dir}" ] || die 'unable to write to output directory'
+
+  watchAge=`age "${FLAGS_watch}"`
+  watchAgePrev=${watchAge}
+
+  # build
+  while true; do
+    if [ ! "${watchAge}" == "${watchAgePrev}" ]; then
+      date=`isodate`
+      echo "building ${VERSIONS_OS_NAME}-${VERSIONS_OS_RELEASE} @ ${date}"
+      outputFileDated="${FLAGS_output}-${date}"
+      ${FLAGS_command} >"${FLAGS_output_dir}/${outputFileDated}" 2>&1
+
+      ( cd "${FLAGS_output_dir}";
+        rm -f "${FLAGS_output}";
+        ln -s "${outputFileDated}" "${FLAGS_output}";
+        grep FAIL "${FLAGS_output}"; )
+
+      watchAgePrev=${watchAge}
+    fi
+
+    watchAge=`age "${FLAGS_watch}"`
+    if [ "${watchAge}" == "${watchAgePrev}" ]; then
+      echo 'sleeping...'
+      while [ "${watchAge}" == "${watchAgePrev}" ]; do
+        sleep ${FLAGS_pause}
+        watchAge=`age "${FLAGS_watch}"`
+      done
+    fi
+  done
+}
+
+# execute main() if this is run in standalone mode (i.e. not in a unit test)
+argv0=`echo "${ARGV0}" |sed 's/_test$//;s/_test\.sh$//'`
+if [ "${ARGV0}" = "${argv0}" ]; then
+  FLAGS "$@" || exit $?
+  eval set -- "${FLAGS_ARGV}"
+  if [ $# -gt 0 ]; then main "$@"; else main; fi
+fi