user/sven/git.git/Makefile, branch gitgui-0.8.2

Merge branch 'maint'

2007-06-27T04:36:38Z

* maint: git-gui: Don't require a .pvcsrc to create Tools/Migrate menu hack git-gui: Don't nice git blame on MSYS as nice is not supported git-gui: Don't require $DISPLAY just to get --version

git-gui: Don't require $DISPLAY just to get --version

2007-06-22T05:10:12Z

Junio asked that we don't force the user to have a valid X11 server configured in $DISPLAY just to obtain the output of `git gui version`. This makes sense, the user may be an automated tool that is running without an X server available to it, such as a build script or other sort of package management system. Or it might just be a user working in a non-GUI environment and wondering "what version of git-gui do I have installed?". Tcl has a lot of warts, but one of its better ones is that a comment can be continued to the next line by escaping the LF that would have ended the comment using a backslash-LF sequence. In the past we have used this trick to escape away the 'exec wish' that is actually a Bourne shell script and keep Tcl from executing it. I'm using that feature here to comment out the Bourne shell script and hide it from the Tcl engine. Except now our Bourne shell script is a few lines long and checks to see if it should print the version, or not. Signed-off-by: Shawn O. Pearce

Merge branch 'maint'

2007-06-21T03:27:08Z

* maint: git-gui: Bind Tab/Shift-Tab to cycle between panes in blame git-gui: Correctly install to /usr/bin on Cygwin

git-gui: Quiet our installation process

2007-06-21T03:26:57Z

Alex Riesen wanted a quieter installation process for git and its contained git-gui. His earlier patch to do this failed to work properly when V=1, and didn't really give a great indication of what the installation was doing. These rules are a little bit on the messy side, as each of our install actions is composed of at least two variables, but in the V=1 case the text is identical to what we had before, while in the non-V=1 case we use some more complex rules to show the interesting details, and hide the less interesting bits. We now can also set QUIET= (nothing) to see the rules that are used when V= (nothing), so we can debug those too if we have to. This is actually a side-effect of how we insert the @ into the rules we use for the "lists of things", like our builtins or our library files. Signed-off-by: Shawn O. Pearce

git-gui: Correctly install to /usr/bin on Cygwin

2007-06-21T03:22:49Z

Mark Levedahl noted that installation on Cygwin to /usr/bin can cause problems with the automatic guessing of our library location. The problem is that installation to /usr/bin means we actually have: /usr/bin = c:\cygwin\bin /usr/share = c:\cygwin\usr\share So git-gui guesses that its library should be found within the c:\cygwin\share directory, as that is where it should be relative to the script itself in c:\cygwin\bin. In my first version of this patch I tried to use `cygpath` to resolve /usr/bin and /usr/share to test that they were in the same relative locations, but that didn't work out correctly as we were actually testing /usr/share against itself, so it always was equal, and we always used relative paths. So my original solution was quite wrong. Mark suggested we just always disable relative behavior on Cygwin, because of the complexity of the mount mapping problem, so that's all I'm doing. Signed-off-by: Shawn O. Pearce

Revert "Make the installation target of git-gui a little less chatty"

2007-06-03T01:01:29Z

This reverts commit c289f6fa1f8642a5caf728ef8ff87afd5718cd99. Junio pointed out that Alex's change breaks in some cases, like when V=1, and is more verbose than it should be even if that worked. I'm backing it out and redoing it. Signed-off-by: Shawn O. Pearce

Make the installation target of git-gui a little less chatty

2007-06-02T03:08:29Z

Signed-off-by: Alex Riesen Signed-off-by: Shawn O. Pearce

git-gui: Guess our share/git-gui/lib path at runtime if possible

2007-05-27T04:03:37Z

Johannes Sixt asked me to try to avoid embedding the runtime location of git-gui's library directory in the executable script. Not embedding it helps the MinGW to be relocatable to another directory should a user wish to install the programs in a directory other than the location the packager wanted them to be installed into. Most of this is a hack. We try to determine if the path of our master git-gui script will be able to locate the lib by ../share/git-gui/lib. This should be true if $(gitexecdir) and $(libdir) have the same prefix. If they do then we defer the assignment of $(libdir) until runtime, and we get it from $argv0 rather than embedding it into the script itself. Signed-off-by: Shawn O. Pearce

git-gui: Gracefully handle bad TCL_PATH at compile time

2007-05-17T22:10:26Z

Petr Baudis pointed out the main git.git repository's Makefile dies now if git-gui 0.7.0-rc1 or later is being used and TCL_PATH was not set to a working tclsh program path. This breaks people who may have a working build configuration today and suddenly upgrade to the latest git release. The tclIndex is required for git-gui to load its associated lib files, but using the Tcl auto_load procedure to source only the files we need is a performance optimization. We can emulate the auto_load by just source'ing every file in that directory, assuming we source class.tcl first to initialize our crude class system. Signed-off-by: Shawn O. Pearce

git-gui: Define a simple class/method system

2007-05-09T01:38:54Z

As most of the git-gui interface is based upon "meta-widgets" that need to carry around a good deal of state (e.g. console windows, browser windows, blame viewer) we have a good deal of messy code that tries to store this meta-widget state in global arrays, where keys into the array are formed from a union of a unique "object instance id" and the field name. This is a simple class system for Tcl that allows us to hide much of that mess by making Tcl do what it does best; process strings to manipulate its own code during startup. Each object instance is placed into its own namespace. The namespace is created when the object instance is created and the namespace is destroyed when the object instance is removed from the system. Within that namespace we place variables for each field within the class; these variables can themselves be scalar values or full-blown Tcl arrays. A simple class might be defined as: class map { field data field size 0 constructor {} { return $this } method set {name value} { set data($name) $value incr size } method size {} { return $size } ifdeleted { return 0 } } All fields must be declared before any constructors or methods. This allows our class to generate a list of the fields so it can properly alter the definition of the constructor and method bodies prior to passing them off to Tcl for definition with proc. A field may optionally be given a default/initial value. This can only be done for non-array type fields. Constructors are given full access to all fields of the class, so they can initialize the data values. The default values of fields (if any) are set before the constructor runs, and the implicit local variable $this is initialized to the instance identifier. Methods are given access to fields they actually use in their body. Every method has an implicit "this" argument inserted as its first parameter; callers of methods must be sure they supply this value. Some basic optimization tricks are performed (but not much). We try to only upvar (locally bind) fields that are accessed within a method, but we err on the side of caution and may upvar more than we need to. If a variable is accessed only once within a method and that access is by $foo (read) we avoid the upvar and instead use [set foo] to obtain the value. This is slightly faster as Tcl does not need to lookup the variable twice. We also offer some small syntatic sugar for interacting with Tk and the fileevent callback system in Tcl. If a field (say "foo") is used as "@foo" we insert instead the true global variable name of that variable into the body of the constructor or method. This allows easy binding to Tk textvariable options, e.g.: label $w.title -textvariable @title Proper namespace callbacks can also be setup with the special cb proc that is defined in each namespace. [cb _foo a] will invoke the method _foo in the current namespace, passing it $this as the first (implied) parameter and a as the second parameter. This makes it very simple to connect an object instance to a -command option for a Tk widget or to a fileevent readable or writable for a file channel. Signed-off-by: Shawn O. Pearce