contrib/hooks: add an example pre-auto-gc hook

diff --git a/git-gui/Makefile b/git-gui/Makefile
index 34438cdf5cc219ac71cbc90a23c23550276f5af2..b19fb2d64e777102fed94d485f869ad6695bbb62 100644 (file)
--- a/git-gui/Makefile
+++ b/git-gui/Makefile
@@ -13,6 +13,7 @@ GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE
 
 uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
 uname_O := $(shell sh -c 'uname -o 2>/dev/null || echo not')
+uname_R := $(shell sh -c 'uname -r 2>/dev/null || echo not')
 
 SCRIPT_SH = git-gui.sh
 GITGUI_MAIN := git-gui
@@ -91,9 +92,20 @@ ifndef V
        REMOVE_F1 = && echo '   ' REMOVE `basename "$$dst"` && $(RM_RF) "$$dst"
 endif
 
-TCL_PATH   ?= tclsh
 TCLTK_PATH ?= wish
-TKFRAMEWORK = /Library/Frameworks/Tk.framework/Resources/Wish.app
+ifeq (./,$(dir $(TCLTK_PATH)))
+       TCL_PATH ?= $(subst wish,tclsh,$(TCLTK_PATH))
+else
+       TCL_PATH ?= $(dir $(TCLTK_PATH))$(notdir $(subst wish,tclsh,$(TCLTK_PATH)))
+endif
+
+ifeq ($(uname_S),Darwin)
+       TKFRAMEWORK = /Library/Frameworks/Tk.framework/Resources/Wish.app
+       ifeq ($(shell expr "$(uname_R)" : '9\.'),2)
+               TKFRAMEWORK = /System/Library/Frameworks/Tk.framework/Resources/Wish\ Shell.app
+       endif
+       TKEXECUTABLE = $(shell basename "$(TKFRAMEWORK)" .app)
+endif
 
 ifeq ($(findstring $(MAKEFLAGS),s),s)
 QUIET_GEN =
@@ -119,7 +131,17 @@ GITGUI_MACOSXAPP :=
 
 ifeq ($(uname_O),Cygwin)
        GITGUI_SCRIPT := `cygpath --windows --absolute "$(GITGUI_SCRIPT)"`
-       gg_libdir_sed_in := $(shell cygpath --windows --absolute "$(gg_libdir)")
+
+       # Is this a Cygwin Tcl/Tk binary?  If so it knows how to do
+       # POSIX path translation just like cygpath does and we must
+       # keep libdir in POSIX format so Cygwin packages of git-gui
+       # work no matter where the user installs them.
+       #
+       ifeq ($(shell echo 'puts [file normalize /]' | '$(TCL_PATH_SQ)'),$(shell cygpath --mixed --absolute /))
+               gg_libdir_sed_in := $(gg_libdir)
+       else
+               gg_libdir_sed_in := $(shell cygpath --windows --absolute "$(gg_libdir)")
+       endif
 else
        ifeq ($(exedir),$(gg_libdir))
                GITGUI_RELATIVE := 1
@@ -147,7 +169,7 @@ git-gui: GIT-VERSION-FILE GIT-GUI-VARS
        echo then >>$@+ && \
        echo '  'echo \'git-gui version '$(GITGUI_VERSION)'\' >>$@+ && \
        echo else >>$@+ && \
-       echo '  'exec \''$(libdir_SQ)/Git Gui.app/Contents/MacOS/Wish'\' \
+       echo '  'exec \''$(libdir_SQ)/Git Gui.app/Contents/MacOS/$(subst \,,$(TKEXECUTABLE))'\' \
                '"$$0" "$$@"' >>$@+ && \
        echo fi >>$@+ && \
        chmod +x $@+ && \
@@ -157,14 +179,15 @@ Git\ Gui.app: GIT-VERSION-FILE GIT-GUI-VARS \
                macosx/Info.plist \
                macosx/git-gui.icns \
                macosx/AppMain.tcl \
-               $(TKFRAMEWORK)/Contents/MacOS/Wish
+               $(TKFRAMEWORK)/Contents/MacOS/$(TKEXECUTABLE)
        $(QUIET_GEN)rm -rf '$@' '$@'+ && \
        mkdir -p '$@'+/Contents/MacOS && \
        mkdir -p '$@'+/Contents/Resources/Scripts && \
-       cp '$(subst ','\'',$(TKFRAMEWORK))/Contents/MacOS/Wish' \
+       cp '$(subst ','\'',$(subst \,,$(TKFRAMEWORK)/Contents/MacOS/$(TKEXECUTABLE)))' \
                '$@'+/Contents/MacOS && \
        cp macosx/git-gui.icns '$@'+/Contents/Resources && \
        sed -e 's/@@GITGUI_VERSION@@/$(GITGUI_VERSION)/g' \
+               -e 's/@@GITGUI_TKEXECUTABLE@@/$(TKEXECUTABLE)/g' \
                macosx/Info.plist \
                >'$@'+/Contents/Info.plist && \
        sed -e 's|@@gitexecdir@@|$(gitexecdir_SQ)|' \
@@ -198,7 +221,7 @@ ifdef NO_MSGFMT
        MSGFMT ?= $(TCL_PATH) po/po2msg.sh
 else
        MSGFMT ?= msgfmt
-       ifeq ($(shell $(MSGFMT) >/dev/null 2>&1 || echo $$?),127)
+       ifneq ($(shell $(MSGFMT) --tcl -l C -d . /dev/null 2>/dev/null; echo $$?),0)
                MSGFMT := $(TCL_PATH) po/po2msg.sh
        endif
 endif