configury: prepare for autotools

1 files changed, 131 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..64cfbd3
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,131 @@
+AC_INIT([postgresql-setup], [0.9], [praiskup@redhat.com])
+AM_INIT_AUTOMAKE([foreign -Wall -Werror])
+AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([postgresql-setup], [chmod +x postgresql-setup])
+
+# For SELinux purposes use rather runuser
+AC_PATH_PROG([SU], [runuser])
+test -z "$ac_cv_path_SU" &&
+    AC_PATH_PROG([SU], [su])
+test -z "$ac_cv_path_SU" &&
+    AC_MSG_ERROR([Neither 'runuser' nor 'su' program found])
+
+distro_family=redhat
+test -r /etc/redhat-release ||
+    AC_MSG_ERROR([This still works for Red Hat distributions only])
+
+# Check package manager is installed
+case "$distro_family" in
+redhat)
+    AC_PATH_PROG([RPM], [rpm])
+    test -z "$ac_cv_path_RPM" &&
+        AC_MSG_ERROR([RPM package manager is required])
+    ;;
+esac
+
+# Make sure that the variable is in './configure --help' output and that it is
+# not empty.
+m4_define([subst_required_var], [
+    AC_ARG_VAR([$1], [$2])
+    test -z "$[]$1" &&
+        AC_MSG_ERROR([the \$$1 variable is not set])
+])
+
+# Check for main PostgreSQL binary
+# --------------------------------
+
+AC_ARG_VAR([POSTGRES_BIN], [full path to postgres binary])
+AC_PATH_PROG([POSTGRES_BIN], [postgres])
+
+
+# PGVERSION & PGMAJORVERSION
+# --------------------------
+
+if test -z "$PGVERSION" -a -z "$PGMAJORVERSION"; then
+    test -z "$ac_cv_path_POSTGRES_BIN" &&
+        AC_MSG_ERROR([no postgres binary, can not detect version])
+
+    AC_MSG_CHECKING([for full version PostgreSQL server])
+    raw_version=$("$POSTGRES_BIN" --version) ||
+        AC_MSG_ERROR([command $POSTGRES_BIN --version failed])
+
+    PGVERSION=${raw_version##* }
+    AC_MSG_RESULT($PGVERSION)
+
+    PGMAJORVERSION=${PGVERSION%%.[[0-9]]}
+fi
+
+# Detect PGENGINE location
+# ------------------------
+
+if test -z "$PGENGINE"; then
+    test -z "$ac_cv_path_POSTGRES_BIN" &&
+        AC_MSG_ERROR([no postgres binary, can not detect PGENGINE])
+    PGENGINE=`AS_DIRNAME($POSTGRES_BIN)`
+fi
+
+# pg_upgrade binary
+# -----------------
+
+AC_PATH_PROG([PG_UPGRADE_BIN], [pg_upgrade])
+
+# Detect PREVMAJORVERSION
+# -----------------------
+# This sets as a side effect PREV_POSTGRES_BIN, which is used later on.
+
+if test -z "$PREVMAJORVERSION"; then
+    case "$distro_family" in
+    redhat)
+        AC_MSG_CHECKING([for prev major version])
+        test -z "$ac_cv_path_PG_UPGRADE_BIN" &&
+            AC_MSG_ERROR([no pg_upgrade found])
+
+        PREV_POSTGRES_BIN=$(rpm -ql \
+            $(rpm -qf "$ac_cv_path_PG_UPGRADE_BIN") \
+                | grep 'bin/postgres' )
+
+        PREVMAJORVERSION=$(echo $PREV_POSTGRES_BIN \
+            | sed 's/.*postgresql-\([[0-9\.]]\+\).*/\1/')
+        AC_MSG_RESULT($PREVMAJORVERSION)
+        ;;
+    esac
+fi
+
+# Detect PREVPGENGINE
+# -------------------
+
+if test -z "$PREVPGENGINE"; then
+    PREVPGENGINE=`AS_DIRNAME($PREV_POSTGRES_BIN)`
+fi
+
+# Detect where distribution-like README is
+# ----------------------------------------
+
+case "$distro_family" in
+redhat)
+    README_DIST=`rpm -ql postgresql | grep README | grep dist`
+    ;;
+esac
+
+test -z "$INITDB_LOG" &&
+    INITDB_LOG=/var/lib/pgsql/initdb.log
+
+test -z "$UPGRADE_LOG" &&
+    UPGRADE_LOG=/var/lib/pgsql/pgupgrade.log
+
+if test -z "$SYSCONFIG_DIR" -a "$distro_family" = redhat; then
+    SYSCONFIG_DIR=/etc/sysconfig
+fi
+
+# Deal with previous versions
+subst_required_var([PGVERSION],         [full PG version])
+subst_required_var([PGMAJORVERSION],    [major PG version])
+subst_required_var([PGENGINE],          [directory where PG server resides])
+subst_required_var([PREVMAJORVERSION],  [PG major version to upgrade _from_])
+subst_required_var([PREVPGENGINE],      [directory where old PG server resides])
+subst_required_var([README_DIST],       [README file for distribution])
+subst_required_var([INITDB_LOG],        [log file for initdb])
+subst_required_var([UPGRADE_LOG],       [log file for pg_upgrade])
+subst_required_var([SYSCONFIG_DIR],     [log file for pg_upgrade])
+
+AC_OUTPUT