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fpcup
https://bitbucket.org/reiniero/fpcup/

What is it?
===========
fpcup is basically a wrapper around svn/make on steroids. It tries to use the 
FPC/Lazarus build process as much as possible.

fpcup is a tool that gets the current version of FreePascal Compiler (FPC) and 
Lazarus IDE from their subversion repositories and compiles/installs them.
It adds CHM documentation and configures the Lazarus help for you.

It also creates a shortcut on your desktop that points to the new Lazarus 
installation.

Meant to be used side by side with other FPC/Lazarus installations. It creates a
separate primary config path directory for the new Lazarus installation, so it 
doesn't interfere with existing Lazarus installs.

It's open source software released under the LGPL with linking exception 
(same as FreePascal), and contains the Synapse libraries (BSD license). 
See source files for details.
All use permitted, also commercial, but no warranties, express or implied.
Run fpcup --help for command line options.

Why yet another tool?
=====================
I was disappointed in LazUpdater, a GUI program that has similar goals as the 
code seems to be too complex.

I also was tired of writing batch scripts and then having to press all kinds of 
buttons/fiddling with things to get it working.

Prerequisites
=============

- Windows
=========
- none, *but* an SVN installation in your path (e.g. TortoiseSVN) is recommended
You can build Lazarus without an svn.exe in your path, but the Lazarus tool 
svn2revisioninc won't work and you won't get an SVN revision number in your 
Help/About box.
If needed, the tool will download all needed binaries (bootstrap compiler, 
binutils, svn executable)

- Linux
=======
- the binutils (make etc); e.g. in a package called build-essential
- bunzip2 (probably present in most distributions)
- unzip
- subversion client: svn
- gdb is not needed for building FPC/Lazarus but needed for debugging 
  your Lazarus programs 
E.g. on Debian or Ubuntu, do something like:
sudo aptitude install build-essential gdb subversion unzip

- Apple OSX
===========
- Xcode and Xcode command line tools

- FreeBSD 9+
=============
- none, but *strongly recommended* to use a newer gdb than the 6.1 version 
supplied with the system, e.g. by
cd /usr/ports/devel/gdb
make -DBATCH install clean
Use gdb in /usr/local/bin/gdb
- for Lazarus, you'll need XWindows with GTK (default) or Qt


How does it work?
=================
FPCUp is a fancy batch script written in FPC/Lazarus that simply downloads FPC 
and Lazarus from SVN and compiles them ;)

You run it, with options if necessary (see fpcup --help).
When done, it should have 
- created a Lazarus_trunk shortcut on your desktop (Windows/Linux) 
- a shell script in your home directory (*nix) linking to the installed Lazarus.
Start this to start your new Lazarus instance.

fpcup sets up a separate primary config path to store Lazarus settings 
separate from other installs.
You need to run the script/shortcut because it tells your Lazarus 
where to find that primary config path.

Hint: after the first run, you can add/remove packages, set up your settings 
as wanted etc.
You can then run fpcup --only=fpc,lazarus to only update FPC and Lazarus sources
which saves time, as you're not rebuilding help, installing packages, etc.
Of course, you could run the full version e.g. once per day to make sure 
all external repositories etc are up to date.


Storing your settings
=====================
After running, fpcup creates a batch/shell script file by default to run it 
again with the same parameters.
On Windows, it creates a shortcut on your desktop (e.g. fpcup_update) with those parameters.

Additionally, you can save the settings in an ini file and call 
fpcup --inifile=settings.ini
(see the settings.ini examle file)
The parameters not specified are default settings and can be overruled when 
calling from the command line:

[general]
fpcurl=http://svn.freepascal.org/svn/fpc/trunk
keeplocalchanges=true

As you can see, parameters like --keeplocalchanges that have no extra arguments 
on the command line versions are represented by adding =true to the parameter
in the ini file.
Parameters like fpcurl that do need an extra argument simply have it added.

Compiling
=========
If you want to compile fpcup from source, please compile hgversion.pas first; 
this should give a hgversion executable, which is used by the fpcup project 
build action (Compilation/Execute Before command) to generate the current fpcup 
version info into revision.inc
If you don't do this, you'll probably get incorrect version information in 
fpcup or compilation problems ("Can't open include file "revision.inc"").

Technical explanation
=====================
If you want to improve or extend fpcup, here's a more detailed description of 
what it does.

Note that some steps will not be executed depending on the modules chosen by 
the user.
By default, all modules will be run; the help module is selected by default and 
pulls in the useride module.
In the 32 bit fpcup for Windows version, the crosswin32-64 module will be run so 
users can compile 64 bit applications with Lazarus.

1. Setup, checking/downloading prerequisites:
fpcup creates
- a shortcut on your desktop (Windows, Linux) 
- a home directory shell script to fpcup 
with all the options you chose, so you don't have to type it all again

- On Windows, it checks whether make.exe and unzip.exe are present in the 
binutils directory (default or user-specified). If not, it downloads them.

- It checks if make.exe is GNU make, and not e.g. Delphi/Borland make.

- It checks whether a Subversion client is available. 
On Windows: if there isn't, it downloads one.

- If bootstrap compilers need to be downloaded, an unarchiver utility is needed.
fpcup checks for existence of unzip, gnutar, or bunzip2 
depending on the format the compiler archive uses.

- It checks if there is a valid FPC compiler in the bootstrap directory 
the user specified (or default). 
If it doesn't exist, it downloads a bootstrap compiler.

2. Getting and compiling FPC
- It checks out or updates FPC using Subversion.

- It compiles FPC using the bootstrap compiler.

- It creates a valid fpc.cfg for the new compiler. It adds the compiler bin 
path and the one above it so tools like the fpcres resource compiler can be 
found.

- On FreeBSD/Linux/OSX: it creates a dummy fpc.sh designed to filter out 
existing system wide fpc.cfg (e.g. /etc/fpc.cfg) and places that 
in the FPC directory

3. Getting and compiling Lazarus
- It checks out or updates Lazarus using Subversion.

- It compiles lazbuild (the command line Lazarus builder) using the installed 
FPC compiler (Unix/FreeBSD/Linux/OSX: fpc.sh) and fpc.cfg

- When done, it creates a shortcut on your desktop (Windows, Linux), and
a shell script in the home directory (*nix) to the newly installed Lazarus

- It compiles Lazarus, adding packages from fpcup.ini using make useride 
(or its lazbuild equivalent) in order to get a workable Lazarus with e.g. the 
database .lpk files compiled and included.

- It creates a minimum configuration (environmentoptions.xml) in a separate 
primary-config-path directory, or updates that config with: 
-- the compiler
-- the FPC source directory
-- make location
-- gdb/debugger location

- fpcup compiles the Lazarus documentation editor (LazDE) using 
lazbuild in the newly compiled Lazarus directory

- fpcup compiles the Lazarus data desktop using 
lazbuild in the newly compiled Lazarus directory

4. Getting help
- It compiles the Lazarus lhelp CHM viewer (LazDE) using 
lazbuild in the newly compiled Lazarus directory

- It g2ets the FPC chm documentation if not already present

- It compiles the Lazarus CHM help if it hasn't been compiled recently and if it
hasn't been marked read-only (reason: compiling this takes a long time)

5. Getting and compiling external modules
- It reads fpcup.ini and parses the items specified.

- It can download from HTTP and FTP sites, and use 
SVN, mercurial or git (if installed) to keep repositories up to date.

- It can register executables as external tools in Lazarus

- It can add packages to the IDE 
(needs Lazarus SVN r37443 (Lazarus 1.1 branch) or later)

- Please see fpcup.ini for details on external modules
(e.g. keywords that can be used)


Cross compiler extensions
=========================
fpcup has a facility to extend its functionality using cross compiling modules.
These are classes that inherit from the fpcup TCrossInstaller class defined 
in m_crossinstaller.pas

An example is the Windows 32=>Windows 64 cross compile unit in m_crosswin64.pas.
Note that this is a simple version, as there is no need for separate binutils and library paths.
A similar module is the *nix=>Windows 32/64 modules in 
m_anyinternallinker_to_win386.pas and m_anyinternallinker_to_win64.pas
These modules get registered automatically (using the unit's initialization 
section) when compiled into the fpcup code. 
You do need to add the unit to the fpcup.lpr project uses clause though.

To use them, you would specify 
--cputarget= (e.g. i386, x86_64... the way FPC defines the CPU names)
See fpcup -h for possible values
--ostarget= (e.g. freebsd, win32,...... the way FPC defines the OS names)

What you want to build e.g.
--only=FPCBuildOnly,LazarusBuildOnly
(or leave this parameter for building FPC and the Lazarus LCL)

If there's a cross compiler available for the combination source+target OS/CPU, 
it will run. Otherwise you will get an error message.

For any platform that has an internal linker in FPC (FreeBSD, Linux,..) 
you can run a Windows cross compiler: 32 bit:
--cputarget=i386 --ostarget=win32 --only=FPCBuildOnly,LazarusBuildOnly
or Windows 64 bit:
--cputarget=x86_64 --ostarget=win32 --only=FPCBuildOnly,LazarusBuildOnly
When that is done, you can cross compile to Windows using Lazarus.

See fpcup.html for more details on implementing your own cross compilers and 
other extensions to fpcup.

LCL/FPC/Lazarus limitations
===========================
- Multiple widgetsets
The Lazarus LCL can be installed in different directories depending on 
architecture. This is very helpful when building cross compilers, as the 
compiled units and binutils do not interfere with each other.
fpcup uses this approach for building cross compilers.

However, there is no provision for separating LCL units for multiple widgetsets.
If you compile e.g. GTK2 and QT LCL widgetsets for the same platform, one will 
overwite the other. This means that fpcup cannot manage multiple widgetsets.
If you want to use multiple widgetsets, best practice is to use separated 
Lazarus directories (option --lazdir in fpcup).

- LCL documentation generation 
Fpdoc from FPC 2.6 has known bugs, (only) some of which are fixed in FPC 2.7.
LCL .chm documentation generation on x64 Linux and x86 Windows may take a 
long time; fpcup takes a huge amount of CPU, but eventually finished.

Due to bugs in either the help sources or fpdoc, document generation may fail 
and generate 0 byte files, especially on FPC2.6.x.
Fpcup checks for this and will not overwrite existing files with empty files.

Troubleshooting
===============
A big problem in designing this utility was to keep systemwide fpc.cfg on 
Unix/Linux from interfering with our FPC install.
It seems the only way around this is to write an FPC proxy (fpc.sh) that 
explicitly ignores any fpc.cfgs.

To check whether this works:
cd ~/<yourlazarusdirectory>
#Check system wide settings (look for FPC, FPC version, FPCDIR and UnitsDir:
make fpc_baseinfo | less
#Check (look for FPC, FPC version, FPCDIR and UnitsDir:
#this should pick up the proper unit path, fpcdir and version from the 
#fpcup-installed fpc version
make fpc_baseinfo FPC=~/<yourfpcdirectory>/bin/fpc.sh
~/<yourfpcdirectory>/bin/fpc.sh -vut # or something?

Additionally, on both Windows and Unix we add our own binutils directory to the 
beginning of the path when calling make.
This ensures that e.g. existing Delphi or cygwin make.exe does not mess with 
our installation.
This is probably a bigger problem on Windows than on Linux/Unix.

Status
======
Works for me and others with e.g. FPC fixes_2.6 and Lazarus on Windows and Linux.
Testing versions for FreeBSD 9+ x64 and OSX available.


Contact
=======
For reporting bugs, suggestions, patches.
- Bitbucket issue tracker (please only post if you attach a --verbose output log)
https://bitbucket.org/reiniero/fpcup/issues

Help output:
============
A recent fpcup --help shows this:
fpcup
An FPC/Lazarus downloader/updater/installer
Open source freeware (modified LGPL/BSD), see:
https://bitbucket.org/reiniero/fpcup

This program will download the FPC and Lazarus sources
from the source Subversion/SVN repositories,
compile, and install.
Result: you get a fresh, up-to-date Lazarus/FPC installation.

Version: based on commit ade0c88604b8 (Sat Mar 01 10:08:01 2014 +0100)
Build date: 2014/03/01 10:08:26
Compiled for CPU: i386 on win32

DON'T PANIC!
Everything below is optional...

fpcup can work with modules - see "only", "include", "skip" below
List of all modules:
anchordocking
anchordockingclean
anchordockinguninstall
bgracontrols
bgracontrolsclean
bgracontrolsuninstall
brookframework
brookframeworkclean
brookframeworkuninstall
codelibrarian
codelibrarianclean
codelibrarianuninstall
crosswin32-64
crosswin64-32
dcpcrypt
dcpcryptclean
dcpcryptuninstall
default
defaultclean
defaultuninstall
defaultwin32
defaultwin32uninstall
defaultwin64
defaultwin64uninstall
doceditor
doceditorclean
doceditoruninstall
fblib
fblibclean
fblibuninstall
FPC
FPCBuildOnly
FPCclean
FPCCleanOnly
FPCCrossWin32-64
fpcdocs
fpcdocsclean
fpcdocsuninstall
FPCGetOnly
FPCuninstall
fpcup
fpcupclean
fpcupuninstall
fpspreadsheet
fpspreadsheetclean
fpspreadsheetuninstall
glscene
glsceneclean
glsceneuninstall
greyhound
greyhoundclean
greyhounduninstall
helpfpc
HelpFPCBuildOnly
HelpFPCCleanOnly
HelpFPCConfigOnly
HelpFPCGetOnly
helpfpcuninstall
helplazarus
HelpLazarusBuildOnly
helplazarusclean
HelpLazarusConfigOnly
HelpLazarusGetOnly
helplazarusuninstall
installerlazwin
installerlazwinclean
installerlazwinuninstall
kzdesktop
kzdesktopclean
kzdesktopuninstall
lazarus
lazarus_ccr
lazarus_ccrclean
lazarus_ccruninstall
LazarusBuildOnly
lazarusclean
LazarusCleanOnly
LazarusConfigOnly
LazarusCrossWin32-64
LazarusGetOnly
lazarusuninstall
lazbuild
lazdatadesktop
lazdatadesktopclean
lazdatadesktopuninstall
lazpackager
lazpackagerclean
lazpackageruninstall
lazpaint
lazpaintclean
lazpaintuninstall
lazres
lazresclean
lazresuninstall
LCLCross
leptonica
leptonicaclean
leptonicauninstall
lhelp
lhelpclean
lhelpuninstall
ljgridutils
ljgridutilsclean
ljgridutilsuninstall
lnet
lnetclean
lnetuninstall
mupdf
mupdfclean
mupdfuninstall
nxpascal
nxpascalclean
nxpascaluninstall
OCRivist
OCRivistclean
OCRivistuninstall
pascalsane
pascalsaneclean
pascalsaneuninstall
patchwrangler
patchwranglerclean
patchwrangleruninstall
rx
rxclean
rxuninstall
simplegraph
simplegraphclean
simplegraphuninstall
suggestedpackages
suggestedpackagesclean
suggestedpackagesuninstall
synapsetrunk
synapsetrunkclean
synapsetrunkuninstall
tesseract
tesseractclean
tesseractuninstall
tiopf
tiopfclean
tiopfuninstall
USERIDE
vampyre
vampyreclean
vampyreuninstall
zeostesting
zeostestingclean
zeostestinguninstall

The following modules run by default:
SUGGESTEDPACKAGES
LAZDATADESKTOP
DOCEDITOR
FPCDOCS
LAZRES

fpcup --<option> --<option>...

Options are not required; they include:
 help                  Show this text

 binutilsdir=<dir>     Windows only:
                       Directory where make, patch etc
                       (the binutils) are located. If make does not
                       exist, binutils will be downloaded there.
                       Default c:\development\fpcbootstrap\
                       Note: the binutils are copied to the
                       FPC directory for use by FPC. This gives
                       a more standard FPC environment.
                       Make sure it is not in the fpcdir directory
 clean                 Remove files created with build. 
                       Can be combined with skip and only options.
 crossOPT=<options>    Options to be passed to the cross compiler.
                       Corresponds to the CROSSOPT argument in make
                       crosscompiler.
                       E.g. --crossOPT="-CpARMV7 -CfVFPV3" for ARM
 cputarget=<name>      CPU target for cross_compiling.
                       <name> has to be one of the following:
                       i386,m68k,alpha,powerpc,powerpc64,
                       armeb,arm,sparc,x86_64,ia64
 fpcbootstrapdir=<dir> An existing FPC compiler is needed to compile the FPC
                       sources. Specify location with this option; if no
                       compiler found here, FPCUp will download one there.
                       Make sure it is not in the fpcdir directory
                       Default: c:\development\fpcbootstrap\
                       or ~\fpcbootstrap\
 fpcdir=<dir>          Target FPC dir, default c:\development\fpc\
                       or ~\fpc\
 fpcuplinkname=<name>  Name of the shortcut to the fpcup script.
                       On Windows: a desktop shortcut.
                       On other systems: a shell script in your home directory.
                       If empty specified, no shortcut will be produced.
                       Default: fpcup_update
                         or <lazlinkname>_update if lazlinkname specified
 fpcURL=<URL>          SVN URL from which to download; default: fixes_2.6:
                       http://svn.freepascal.org/svn/fpc/branches/fixes_2_6
                       Accepts shortcuts: 
                       2.7.1,trunk,fixes,2.6.2,2.6.0
 fpcOPT=<options>      Options passed on to the FPC make as OPT=options.
                       E.g.: --fpcOPT="-gl -dSAX_HTML_DEBUG -dUSE_MINGW_GDB"
 fpcrevision=<number>  Revert to FPC SVN revision <number>
 httpproxy=<username:password@host:port> username, password: optional
 httpproxy=<http://username:password@host:port> username, password: optional
                       Use HTTP proxy for http downloads,
                       svn over http, hg over http (but not git over http)
                       On Unix/Linux: if the http_proxy environment variable
                       is set, this option is automatically filled in.
 include=<values>      Update/build or clean the modules specified as well 
                       as the default ones.
                       The module list is separated by commas.
                       See above for a list of modules.
 inifile=<file>        Reads in ini file with options.
                       Example ini file: see settings.ini
                       Options can be overwritten by command line parameters.
 inisection=<sec>      Section name to be used if an ini file is specified.
                       If not given, use [General]
 installdir=<dir>      Base installation dir. Leads to these subdirs:
                 <dir>\config_lazarus\ Lazarus primary config path
                 <dir>\cross\          crosscompiling bins/libs
                 <dir>\extras\         extra modules
                 <dir>\fpc\            FPC
                 <dir>\fpcbootstrap\ (Windows) bootstrap compiler+binutils
                 <dir>\installerlazwin (Windows) generated installer if
                       using module installerlazwin
                 <dir>\lazarus\ Lazarus
                       See fpcdir, lazdir, fpcbootstrapdir, binutilsdir
                       primary-config-path
                       for the defaults when installdir is not specified.
                       You can also use these to override the defaults given
                       by installdir.
 keeplocalchanges      Keep locally modified files (normally these would be
                       backed up as .diff files before doing svn revert.
 moduleconfig=<file>   Load external module definition file from <file>.
                       Default: fpcup.ini in the program directory.
 lazdir=<dir>          Target Lazarus dir, default c:\development\lazarus\
                       or ~\lazarus\
 lazlinkname=<name>    Name of the shortcut to the Lazarus install.
                       On Windows: a desktop shortcut.
                       On other systems: a shell script in your home directory.
                       If empty specified, no shortcut will be produced.
                       Default: depends on Lazarus directory
 lazOPT=<options>      Options passed on to the Lazarus make as OPT=options.
 lazrevision=<number>  Revert to Lazarus SVN revision <number>
 lazURL=<URL>          SVN URL from which to download; default: 
                       trunk (newest version):
                       http://svn.freepascal.org/svn/lazarus/trunk
                       Accepts shortcuts: 
                       trunk,1.3,1.0.14,1.0.12
 lclplatform=<name>    LCL widget set. <name> has to be one of the following:
                       carbon,fpgui,gtk,gtk2,qt,win32,wince
 logfilename=<file>    Location of log file. If nothing specified,
                       fpcup.log in the current directory.
 noconfirm             No confirmation asked. For batch operation.
 only=<values>         Update/build or clean only the modules specified.
                       The module list is separated by commas.
                       See above for a list of modules.
 ostarget=<name>       OS target for cross-compiling.
                       <name> has to be one of the following:
                       darwin,freebsd,linux,netbsd,openbsd,os2,
                       solaris,wince,win32,win64
 patchcmd              Command to use to reapply local changes backed up with
                       svn diff command. The diff file is passed as the only
                       parameter. Add any extra paremeters needed.
                       Default: "patch -p0 -i" 
 primary-config-path=<dir>
                       Analogous to Lazarus primary-config-path (pcp) parameter.
                       Determines where fpcup will create or use as primary
                       configuration path for the Lazarus it installs/updates.
                       Default: empty (=an OS dependent configuration
                       path is used). However, if installdir is specified,
                       the pcp path will be below it.
 reapplylocalchanges   Back up locally modified files into .diff file and
                       reapply the diff with patch or command specified in 
                       parameter patchcmd.
 skip=<values>         Do not update/build or clean specified modules.
                       The module list is separated by commas.
                       See above for a list of modules.
 uninstall             Uninstall sources and all generated files
                       If no skip/only options given:
                       DELETE entire Lazarus/FPC directories
                       Else: uninstall only certain modules.
 verbose               Show output from svn and make.
 version               Show version info and quit.

Share and enjoy!

fpcup: info: 01/03/2014 10:08:36: fpcup finished.

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