# Initialization and helpers for Gitweb tests, which source this
# shell library instead of test-lib.sh.
#
# Copyright (c) 2007 Jakub Narebski
#

proc gitweb_init {
	setvar safe_pwd = "$(perl -MPOSIX=getcwd -e 'print quotemeta(getcwd)')"
	cat >gitweb_config.perl <<< """
#!/usr/bin/perl

# gitweb configuration for tests

our '$'version = 'current';
our '$'GIT = 'git';
our '$'projectroot = "$safe_pwd";
our '$'project_maxdepth = 8;
our '$'home_link_str = 'projects';
our '$'site_name = '[localhost]';
our '$'site_html_head_string = '';
our '$'site_header = '';
our '$'site_footer = '';
our '$'home_text = 'indextext.html';
our @stylesheets = ('file:///$GIT_BUILD_DIR/gitweb/static/gitweb.css');
our '$'logo = 'file:///$GIT_BUILD_DIR/gitweb/static/git-logo.png';
our '$'favicon = 'file:///$GIT_BUILD_DIR/gitweb/static/git-favicon.png';
our '$'projects_list = '';
our '$'export_ok = '';
our '$'strict_export = '';
our '$'maxload = undef;

"""

	cat >.git/description <<< """
$0 test repository
"""

	# You can set the GITWEB_TEST_INSTALLED environment variable to
	# the gitwebdir (the directory where gitweb is installed / deployed to)
	# of an existing gitweb installation to test that installation,
	# or simply to pathname of installed gitweb script.
	if test -n $GITWEB_TEST_INSTALLED  {
		if test -d $GITWEB_TEST_INSTALLED {
			setvar SCRIPT_NAME = ""$GITWEB_TEST_INSTALLED/gitweb.cgi""
		} else {
			setvar SCRIPT_NAME = "$GITWEB_TEST_INSTALLED"
		}
		test -f $SCRIPT_NAME ||
		error "Cannot find gitweb at $GITWEB_TEST_INSTALLED."
		say "# Testing $SCRIPT_NAME"
	} else { # normal case, use source version of gitweb
		setvar SCRIPT_NAME = ""$GIT_BUILD_DIR/gitweb/gitweb.perl""
	}
	export SCRIPT_NAME
}

proc gitweb_run {
	setvar GATEWAY_INTERFACE = ''CGI/1.1''
	setvar HTTP_ACCEPT = ''*/*''
	setvar REQUEST_METHOD = ''GET''
	setvar QUERY_STRING = """$1"""
	setvar PATH_INFO = """$2"""
	export GATEWAY_INTERFACE HTTP_ACCEPT REQUEST_METHOD \
		QUERY_STRING PATH_INFO

	setvar GITWEB_CONFIG = "$(pwd)/gitweb_config.perl"
	export GITWEB_CONFIG

	# some of git commands write to STDERR on error, but this is not
	# written to web server logs, so we are not interested in that:
	# we are interested only in properly formatted errors/warnings
	rm -f gitweb.log &&
	perl -- $SCRIPT_NAME \
		>gitweb.output 2>gitweb.log &&
	perl -w -e '
		open O, ">gitweb.headers";
		while (<>) {
			print O;
			last if (/^\r$/ || /^$/);
		}
		open O, ">gitweb.body";
		while (<>) {
			print O;
		}
		close O;
	' gitweb.output &&
	if grep '^[[]' gitweb.log >/dev/null 2>&1 {
		test_debug 'cat gitweb.log >&2' &&
		false
	} else {
		true
	}

	# gitweb.log is left for debugging
	# gitweb.output is used to parse HTTP output
	# gitweb.headers contains only HTTP headers
	# gitweb.body contains body of message, without headers
}

source ./test-lib.sh

if ! test_have_prereq PERL {
	setvar skip_all = ''skipping gitweb tests, perl not available''
	test_done
}

perl -MEncode -e '$e="";decode_utf8($e, Encode::FB_CROAK)' >/dev/null 2>&1 || do {
	setvar skip_all = ''skipping gitweb tests, perl version is too old''
	test_done
}

perl -MCGI -MCGI::Util -MCGI::Carp -e 0 >/dev/null 2>&1 || do {
	setvar skip_all = ''skipping gitweb tests, CGI module unusable''
	test_done
}

gitweb_init