pgloader/src/params.lisp
2014-11-05 16:41:19 +01:00

140 lines
4.3 KiB
Common Lisp

;;;
;;; pgloader parameters
;;;
;;; in a separate file to break circular dependencies
(defpackage #:pgloader.params
(:use #:cl)
(:export #:*version-string*
#:*csv-path-root*
#:*root-dir*
#:*log-filename*
#:*client-min-messages*
#:*log-min-messages*
#:*report-stream*
#:*copy-batch-rows*
#:*copy-batch-size*
#:*concurrent-batches*
#:*pgconn-host*
#:*pgconn-port*
#:*pgconn-user*
#:*pgconn-pass*
#:*pg-dbname*
#:*pg-settings*
#:*myconn-host*
#:*myconn-port*
#:*myconn-user*
#:*myconn-pass*
#:*my-dbname*
#:*state*
#:*default-tmpdir*
#:init-params-from-environment
#:getenv-default))
(in-package :pgloader.params)
(defparameter *release* nil
"non-nil when this build is a release build.")
(defparameter *major-version* "3.1")
(defparameter *minor-version* "3")
(defun git-hash ()
"Return the current abbreviated git hash of the development tree."
(let ((git-hash `("git" "--no-pager" "log" "-n1" "--format=format:%h")))
(uiop:with-current-directory ((asdf:system-source-directory :pgloader))
(multiple-value-bind (stdout stderr code)
(uiop:run-program git-hash :output :string)
(declare (ignore code stderr))
stdout))))
(defparameter *version-string*
(concatenate 'string *major-version* "."
(if *release* *minor-version* (git-hash)))
"pgloader version strings, following Emacs versionning model.")
;; we can't use pgloader.utils:make-pgstate yet because params is compiled
;; first in the asd definition, we just make the symbol a special variable.
(defparameter *state* nil
"State of the current loading.")
(defparameter *csv-path-root* nil
"Where to load CSV files from, when loading from an archive.")
(defparameter *root-dir*
(make-pathname :directory "/tmp/pgloader/")
"Top directory where to store all data logs and reject files.")
(defparameter *log-filename*
(make-pathname :directory "/tmp/pgloader/" :name "pgloader" :type "log")
"Main pgloader log file")
(defparameter *client-min-messages* :notice)
(defparameter *log-min-messages* :info)
(defparameter *report-stream* *terminal-io*
"Stream where to format the output stream.")
;;;
;;; How to split batches in case of data loading errors.
;;;
(defparameter *copy-batch-rows* 25000
"How many rows to batch per COPY transaction.")
(defparameter *copy-batch-size* (* 20 1024 1024)
"Maximum memory size allowed for a single batch.")
(defparameter *concurrent-batches* 10
"How many batches do we stack in the queue in advance.")
;;;
;;; We need that to setup our default connection parameters
;;;
(eval-when (:compile-toplevel :load-toplevel :execute)
(defun getenv-default (name &optional default)
"Return the value of the NAME variable as found in the environment, or
DEFAULT if that variable isn't set"
(or (uiop:getenv name) default)))
;;;
;;; PostgreSQL Connection Credentials and Session Settings
;;;
(defparameter *pgconn-host* "localhost")
(defparameter *pgconn-port* (parse-integer (getenv-default "PGPORT" "5432")))
(defparameter *pgconn-user* (uiop:getenv "USER"))
(defparameter *pgconn-pass* "pgpass")
(defparameter *pg-dbname* nil)
(defparameter *pg-settings* nil "An alist of GUC names and values.")
;;;
;;; MySQL Connection Credentials
;;;
(defparameter *myconn-host* "localhost")
(defparameter *myconn-port* 3306)
(defparameter *myconn-user* (uiop:getenv "USER"))
(defparameter *myconn-pass* nil)
(defparameter *my-dbname* nil)
;;;
;;; Archive processing: downloads and unzip.
;;;
(defparameter *default-tmpdir*
(let* ((tmpdir (uiop:getenv "TMPDIR"))
(tmpdir (or (and tmpdir (probe-file tmpdir)) "/tmp"))
(tmpdir (fad:pathname-as-directory tmpdir)))
(fad:pathname-as-directory (merge-pathnames "pgloader" tmpdir)))
"Place where to fetch and expand archives on-disk.")
;;;
;;; Run time initialisation of ENV provided parameters
;;;
;;; The command parser dynamically inspect the environment when building the
;;; connection parameters, so that we don't need to provision for those here.
;;;
(defun init-params-from-environment ()
"Some of our parameters get their default value from the env. Do that at
runtime when using a compiled binary."
(setf *default-tmpdir*
(fad:pathname-as-directory
(getenv-default "TMPDIR" *default-tmpdir*))))