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git/Makefile
Shawn O. Pearce b9e7efb8b5 git-gui: Gracefully handle bad TCL_PATH at compile time
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 <spearce@spearce.org>
2007-05-17 18:10:26 -04:00

122 lines
3.2 KiB
Makefile

all::
# Define V=1 to have a more verbose compile.
#
GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE
@$(SHELL_PATH) ./GIT-VERSION-GEN
-include GIT-VERSION-FILE
SCRIPT_SH = git-gui.sh
GITGUI_BUILT_INS = git-citool
ALL_PROGRAMS = $(GITGUI_BUILT_INS) $(patsubst %.sh,%,$(SCRIPT_SH))
ALL_LIBFILES = $(wildcard lib/*.tcl)
PRELOAD_FILES = lib/class.tcl
ifndef SHELL_PATH
SHELL_PATH = /bin/sh
endif
ifndef gitexecdir
gitexecdir := $(shell git --exec-path)
endif
ifndef sharedir
sharedir := $(dir $(gitexecdir))/share
endif
ifndef INSTALL
INSTALL = install
endif
ifndef V
QUIET_GEN = @echo ' ' GEN $@;
QUIET_BUILT_IN = @echo ' ' BUILTIN $@;
QUIET_INDEX = @echo ' ' INDEX $(dir $@);
QUIET_2DEVNULL = 2>/dev/null
endif
TCL_PATH ?= tclsh
TCLTK_PATH ?= wish
ifeq ($(findstring $(MAKEFLAGS),s),s)
QUIET_GEN =
QUIET_BUILT_IN =
endif
DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
gitexecdir_SQ = $(subst ','\'',$(gitexecdir))
SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
TCL_PATH_SQ = $(subst ','\'',$(TCL_PATH))
TCLTK_PATH_SQ = $(subst ','\'',$(TCLTK_PATH))
libdir ?= $(sharedir)/git-gui/lib
libdir_SQ = $(subst ','\'',$(libdir))
$(patsubst %.sh,%,$(SCRIPT_SH)) : % : %.sh
$(QUIET_GEN)rm -f $@ $@+ && \
sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
-e 's|^exec wish "$$0"|exec $(subst |,'\|',$(TCLTK_PATH_SQ)) "$$0"|' \
-e 's/@@GITGUI_VERSION@@/$(GITGUI_VERSION)/g' \
-e 's|@@GITGUI_LIBDIR@@|$(libdir_SQ)|' \
$@.sh >$@+ && \
chmod +x $@+ && \
mv $@+ $@
$(GITGUI_BUILT_INS): git-gui
$(QUIET_BUILT_IN)rm -f $@ && ln git-gui $@
lib/tclIndex: $(ALL_LIBFILES)
$(QUIET_INDEX)if echo \
$(foreach p,$(PRELOAD_FILES),source $p\;) \
auto_mkindex lib '*.tcl' \
| $(TCL_PATH) $(QUIET_2DEVNULL); then : ok; \
else \
echo 1>&2 " * $(TCL_PATH) failed; using unoptimized loading"; \
rm -f $@ ; \
echo '# Autogenerated by git-gui Makefile' >$@ && \
echo >>$@ && \
$(foreach p,$(PRELOAD_FILES) $(ALL_LIBFILES),echo '$(subst lib/,,$p)' >>$@ &&) \
echo >>$@ ; \
fi
# These can record GITGUI_VERSION
$(patsubst %.sh,%,$(SCRIPT_SH)): GIT-VERSION-FILE GIT-GUI-VARS
lib/tclIndex: GIT-GUI-VARS
TRACK_VARS = \
$(subst ','\'',SHELL_PATH='$(SHELL_PATH_SQ)') \
$(subst ','\'',TCL_PATH='$(TCL_PATH_SQ)') \
$(subst ','\'',TCLTK_PATH='$(TCLTK_PATH_SQ)') \
$(subst ','\'',libdir='$(libdir_SQ)') \
#end TRACK_VARS
GIT-GUI-VARS: .FORCE-GIT-GUI-VARS
@VARS='$(TRACK_VARS)'; \
if test x"$$VARS" != x"`cat $@ 2>/dev/null`" ; then \
echo 1>&2 " * new locations or Tcl/Tk interpreter"; \
echo 1>$@ "$$VARS"; \
fi
all:: $(ALL_PROGRAMS) lib/tclIndex
install: all
$(INSTALL) -d -m755 '$(DESTDIR_SQ)$(gitexecdir_SQ)'
$(INSTALL) git-gui '$(DESTDIR_SQ)$(gitexecdir_SQ)'
$(foreach p,$(GITGUI_BUILT_INS), rm -f '$(DESTDIR_SQ)$(gitexecdir_SQ)/$p' && ln '$(DESTDIR_SQ)$(gitexecdir_SQ)/git-gui' '$(DESTDIR_SQ)$(gitexecdir_SQ)/$p' ;)
$(INSTALL) -d -m755 '$(DESTDIR_SQ)$(libdir_SQ)'
$(INSTALL) -m644 lib/tclIndex '$(DESTDIR_SQ)$(libdir_SQ)'
$(foreach p,$(ALL_LIBFILES), $(INSTALL) -m644 $p '$(DESTDIR_SQ)$(libdir_SQ)' ;)
dist-version:
@mkdir -p $(TARDIR)
@echo $(GITGUI_VERSION) > $(TARDIR)/version
clean::
rm -f $(ALL_PROGRAMS) lib/tclIndex
rm -f GIT-VERSION-FILE GIT-GUI-VARS
.PHONY: all install dist-version clean
.PHONY: .FORCE-GIT-VERSION-FILE
.PHONY: .FORCE-GIT-GUI-VARS