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Jakub Narebski 131d6afcba gitweb: Introduce common system-wide settings for convenience

Because of backward compatibility we cannot change gitweb to always
use /etc/gitweb.conf (i.e. even if gitweb_config.perl exists).  For
common system-wide settings we therefore need separate configuration
file: /etc/gitweb-common.conf.

Long description:

gitweb currently obtains configuration from the following sources:

  1. per-instance configuration file (default: gitweb_conf.perl)
  2. system-wide configuration file (default: /etc/gitweb.conf)

If per-instance configuration file exists, then system-wide
configuration is _not used at all_.  This is quite untypical and
suprising behavior.

Moreover it is different from way git itself treats /etc/git.conf.  It
reads in stuff from /etc/git.conf and then local repos can change or
override things as needed.  In fact this is quite beneficial, because
it gives site admins a simple and easy way to give an automatic hint
to a repo about things the admin would like.

On the other hand changing current behavior may lead to the situation,
where something in /etc/gitweb.conf may interfere with unintended
interaction in the local repository.  One solution would be to
_require_ to do explicit include; with read_config_file() it is now
easy, as described in gitweb/README (description introduced in this
commit).

But as J.H. noticed we cannot ask people to modify their per-instance
gitweb config file to include system-wide settings, nor we can require
them to do this.

Therefore, as proposed by Junio, for gitweb to have centralized config
elements while retaining backwards compatibility, introduce separate
common system-wide configuration file, by default /etc/gitweb-common.conf

Noticed-by: Drew Northup <drew.northup@maine.edu>
Helped-by: John 'Warthog9' Hawley <warthog9@kernel.org>
Inspired-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2011-07-24 16:22:21 -07:00

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Makefile

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 # The default target of this Makefile is...
 all::
 # Define V=1 to have a more verbose compile.
 #
 # Define JSMIN to point to JavaScript minifier that functions as
 # a filter to have static/gitweb.js minified.
 #
 # Define CSSMIN to point to a CSS minifier in order to generate a minified
 # version of static/gitweb.css
 #
 prefix ?= $(HOME)
 bindir ?= $(prefix)/bin
 gitwebdir ?= /var/www/cgi-bin
 RM ?= rm -f
 INSTALL ?= install
 # default configuration for gitweb
 GITWEB_CONFIG = gitweb_config.perl
 GITWEB_CONFIG_SYSTEM = /etc/gitweb.conf
 GITWEB_CONFIG_COMMON = /etc/gitweb-common.conf
 GITWEB_HOME_LINK_STR = projects
 GITWEB_SITENAME =
 GITWEB_PROJECTROOT = /pub/git
 GITWEB_PROJECT_MAXDEPTH = 2007
 GITWEB_EXPORT_OK =
 GITWEB_STRICT_EXPORT =
 GITWEB_BASE_URL =
 GITWEB_LIST =
 GITWEB_HOMETEXT = indextext.html
 GITWEB_CSS = static/gitweb.css
 GITWEB_LOGO = static/git-logo.png
 GITWEB_FAVICON = static/git-favicon.png
 GITWEB_JS = static/gitweb.js
 GITWEB_SITE_HEADER =
 GITWEB_SITE_FOOTER =
 HIGHLIGHT_BIN = highlight
 # include user config
 -include ../config.mak.autogen
 -include ../config.mak
 -include config.mak
 # determine version
 ../GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE
 	$(QUIET_SUBDIR0)../ $(QUIET_SUBDIR1) GIT-VERSION-FILE
 -include ../GIT-VERSION-FILE
 ### Build rules
 SHELL_PATH ?= $(SHELL)
 PERL_PATH  ?= /usr/bin/perl
 # Shell quote;
 bindir_SQ = $(subst ','\'',$(bindir))#'
 gitwebdir_SQ = $(subst ','\'',$(gitwebdir))#'
 gitwebstaticdir_SQ = $(subst ','\'',$(gitwebdir)/static)#'
 SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))#'
 PERL_PATH_SQ  = $(subst ','\'',$(PERL_PATH))#'
 DESTDIR_SQ    = $(subst ','\'',$(DESTDIR))#'
 # Quiet generation (unless V=1)
 QUIET_SUBDIR0  = +$(MAKE) -C # space to separate -C and subdir
 QUIET_SUBDIR1  =
 ifneq ($(findstring $(MAKEFLAGS),w),w)
 PRINT_DIR = --no-print-directory
 else # "make -w"
 NO_SUBDIR = :
 endif
 ifneq ($(findstring $(MAKEFLAGS),s),s)
 ifndef V
 	QUIET          = @
 	QUIET_GEN      = $(QUIET)echo '   ' GEN $@;
 	QUIET_SUBDIR0  = +@subdir=
 	QUIET_SUBDIR1  = ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
 	                 $(MAKE) $(PRINT_DIR) -C $$subdir
 	export V
 	export QUIET
 	export QUIET_GEN
 	export QUIET_SUBDIR0
 	export QUIET_SUBDIR1
 endif
 endif
 all:: gitweb.cgi static/gitweb.js
 GITWEB_PROGRAMS = gitweb.cgi
 ifdef JSMIN
 GITWEB_FILES += static/gitweb.min.js
 GITWEB_JS = static/gitweb.min.js
 all:: static/gitweb.min.js
 static/gitweb.min.js: static/gitweb.js GITWEB-BUILD-OPTIONS
 	$(QUIET_GEN)$(JSMIN) <$< >$@
 else
 GITWEB_FILES += static/gitweb.js
 endif
 ifdef CSSMIN
 GITWEB_FILES += static/gitweb.min.css
 GITWEB_CSS = static/gitweb.min.css
 all:: static/gitweb.min.css
 static/gitweb.min.css: static/gitweb.css GITWEB-BUILD-OPTIONS
 	$(QUIET_GEN)$(CSSMIN) <$< >$@
 else
 GITWEB_FILES += static/gitweb.css
 endif
 GITWEB_FILES += static/git-logo.png static/git-favicon.png
 # JavaScript files that are composed (concatenated) to form gitweb.js
 #
 # js/lib/common-lib.js should be always first, then js/lib/*.js,
 # then the rest of files; js/gitweb.js should be last (if it exists)
 GITWEB_JSLIB_FILES += static/js/lib/common-lib.js
 GITWEB_JSLIB_FILES += static/js/lib/datetime.js
 GITWEB_JSLIB_FILES += static/js/lib/cookies.js
 GITWEB_JSLIB_FILES += static/js/javascript-detection.js
 GITWEB_JSLIB_FILES += static/js/adjust-timezone.js
 GITWEB_JSLIB_FILES += static/js/blame_incremental.js
 GITWEB_REPLACE = \
 	-e 's|++GIT_VERSION++|$(GIT_VERSION)|g' \
 	-e 's|++GIT_BINDIR++|$(bindir)|g' \
 	-e 's|++GITWEB_CONFIG++|$(GITWEB_CONFIG)|g' \
 	-e 's|++GITWEB_CONFIG_SYSTEM++|$(GITWEB_CONFIG_SYSTEM)|g' \
 	-e 's|++GITWEB_CONFIG_COMMON++|$(GITWEB_CONFIG_COMMON)|g' \
 	-e 's|++GITWEB_HOME_LINK_STR++|$(GITWEB_HOME_LINK_STR)|g' \
 	-e 's|++GITWEB_SITENAME++|$(GITWEB_SITENAME)|g' \
 	-e 's|++GITWEB_PROJECTROOT++|$(GITWEB_PROJECTROOT)|g' \
 	-e 's|"++GITWEB_PROJECT_MAXDEPTH++"|$(GITWEB_PROJECT_MAXDEPTH)|g' \
 	-e 's|++GITWEB_EXPORT_OK++|$(GITWEB_EXPORT_OK)|g' \
 	-e 's|++GITWEB_STRICT_EXPORT++|$(GITWEB_STRICT_EXPORT)|g' \
 	-e 's|++GITWEB_BASE_URL++|$(GITWEB_BASE_URL)|g' \
 	-e 's|++GITWEB_LIST++|$(GITWEB_LIST)|g' \
 	-e 's|++GITWEB_HOMETEXT++|$(GITWEB_HOMETEXT)|g' \
 	-e 's|++GITWEB_CSS++|$(GITWEB_CSS)|g' \
 	-e 's|++GITWEB_LOGO++|$(GITWEB_LOGO)|g' \
 	-e 's|++GITWEB_FAVICON++|$(GITWEB_FAVICON)|g' \
 	-e 's|++GITWEB_JS++|$(GITWEB_JS)|g' \
 	-e 's|++GITWEB_SITE_HEADER++|$(GITWEB_SITE_HEADER)|g' \
 	-e 's|++GITWEB_SITE_FOOTER++|$(GITWEB_SITE_FOOTER)|g' \
 	-e 's|++HIGHLIGHT_BIN++|$(HIGHLIGHT_BIN)|g'
 GITWEB-BUILD-OPTIONS: FORCE
 	@rm -f $@+
 	@echo "x" '$(PERL_PATH_SQ)' $(GITWEB_REPLACE) "$(JSMIN)|$(CSSMIN)" >$@+
 	@cmp -s $@+ $@ && rm -f $@+ || mv -f $@+ $@
 gitweb.cgi: gitweb.perl GITWEB-BUILD-OPTIONS
 	$(QUIET_GEN)$(RM) $@ $@+ && \
 	sed -e '1s|#!.*perl|#!$(PERL_PATH_SQ)|' \
 		$(GITWEB_REPLACE) $< >$@+ && \
 	chmod +x $@+ && \
 	mv $@+ $@
 static/gitweb.js: $(GITWEB_JSLIB_FILES)
 	$(QUIET_GEN)$(RM) $@ $@+ && \
 	cat $^ >$@+ && \
 	mv $@+ $@
 ### Testing rules
 test:
 	$(MAKE) -C ../t gitweb-test
 test-installed:
 	GITWEB_TEST_INSTALLED='$(DESTDIR_SQ)$(gitwebdir_SQ)' \
 		$(MAKE) -C ../t gitweb-test
 ### Installation rules
 install: all
 	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(gitwebdir_SQ)'
 	$(INSTALL) -m 755 $(GITWEB_PROGRAMS) '$(DESTDIR_SQ)$(gitwebdir_SQ)'
 	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(gitwebstaticdir_SQ)'
 	$(INSTALL) -m 644 $(GITWEB_FILES) '$(DESTDIR_SQ)$(gitwebstaticdir_SQ)'
 ### Cleaning rules
 clean:
 	$(RM) gitweb.cgi static/gitweb.min.js static/gitweb.min.css GITWEB-BUILD-OPTIONS
 .PHONY: all clean install test test-installed .FORCE-GIT-VERSION-FILE FORCE