bin/build/setver: versioning helper script

1 files changed, 131 insertions, 0 deletions

diff --git a/bin/build/setver.sh b/bin/build/setver.sh
new file mode 100755
index 0000000..470e529
--- /dev/null
+++ b/bin/build/setver.sh
@@ -0,0 +1,131 @@
+#!/bin/sh
+#
+#  Sets roverlay's version.
+#
+#  Usage: setver [-S,--src <dir>] [--pretend] [--suffix <str>]
+#            [+,pbump|++,mbump|Mbump|[setver] <ver>]
+#
+# Actions:
+#  +, pbump        -- increase patchlevel by one
+#  ++, mbump       -- increase minor version by one and set patchlevel to 0
+#  Mbump           -- increase major version by one and set minor/patchlevel to 0
+#  setver <ver>    -- set a specific version
+#
+# Options:
+# -S, --src <dir>  -- set roverlay source directory (default: $PWD)
+# --pretend        -- just show what would be done
+# --suffix <str>   -- replace old version suffix with <str>
+#
+set -u
+IFS_DEFAULT="${IFS}"
+
+PY_FILES_TO_EDIT="roverlay/core.py setup.py"
+
+
+die() {
+   echo "${1:-unknown error.}" 1>&2; exit ${2:-2};
+}
+
+parse_version() {
+   local IFS="."
+   set -- ${1}
+   IFS="${IFS_DEFAULT}"
+   [ ${#} -ge 3 ] || return 2
+
+   major="${1:?}"
+   minor="${2:?}"
+   plvl="${3:?}"
+   shift 3 || die "error in parse_version()"
+   suffix="${*}"
+}
+
+inc() {
+   v0=$(( ${1} + 1 ))
+   [ ${v0} -gt ${1} ] || die "overflow"
+}
+
+S="${PWD}"
+unset -v V
+unset -v ACTION
+unset -v new_suffix
+unset -v do_pretend
+
+doshift=
+while [ ${#} -gt 0 ]; do
+   doshift=1
+   case "${1}" in
+      '') : ;;
+
+      '--src'|'-S')
+         [ ${#} -ge 2 ] || die "argparse error"
+         doshift=2
+         S="${2:?}"
+      ;;
+
+      pretend|--pretend)
+         do_pretend=true
+      ;;
+
+      [Mmp]bump) ACTION="${1}" ;;
+      '+')       ACTION=pbump  ;;
+      '++')      ACTION=mbump  ;;
+      *.*.*)     ACTION=setver; V="${1}" ;;
+
+      setver)
+         [ ${#} -ge 2 ] || die "argparse error"
+         doshift=2
+         ACTION=setver
+         V="${2:?}"
+      ;;
+
+      suffix|--suffix)
+         [ ${#} -ge 2 ] || die "argparse error"
+         doshift=2
+         new_suffix="${2?}"
+      ;;
+
+      *)
+         die "unknown arg: ${1}" 64
+      ;;
+   esac
+   [ ${doshift} -eq 0 ] || shift ${doshift} || die "argparse: shift failed"
+done
+
+: ${do_pretend:=false}
+OLDVER="$(cat "${S}/VERSION")"
+parse_version "${OLDVER}" || die "bad version: ${OLDVER}."
+[ -n "${new_suffix+SET}" ] || new_suffix="${suffix}"
+
+case "${ACTION-}" in
+   pbump)
+      inc "${plvl}"
+      V="${major}.${minor}.${v0}${new_suffix}"
+   ;;
+   mbump)
+      inc "${minor}"
+      V="${major}.${v0}.0${new_suffix}"
+   ;;
+   Mbump)
+      inc "${major}"
+      V="${v0}.0.0${new_suffix}"
+   ;;
+   setver)
+      true
+   ;;
+   *)
+      die "unknown or no action specified."
+   ;;
+esac
+
+q="\"\'"
+re_pyfile_ver="^(\s*version\s*=\s*)[${q}]?([^\s;,${q}]*)[${q}]?(\s*[;,]?\s*)\$"
+
+_fmt="edit %-18s: %8s  ->  %s\n"
+for fname in ${PY_FILES_TO_EDIT}; do
+   f="${S}/${fname}"
+   fver="$(sed -rn -e "s@${re_pyfile_ver}@\2@p" < "${f}")"
+   printf "${_fmt}" "${fname}" "${fver}" "${V}"
+   ${do_pretend} || sed -r -e "s@${re_pyfile_ver}@\1\"${V}\"\3@" -i "${f}"
+done
+printf "${_fmt}" "VERSION" "${OLDVER}" "${V}"
+${do_pretend} || echo "${V}" > "${S}/VERSION"