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![John 'Warthog9' Hawley](/assets/img/avatar_default.png)
This changes slightly the behavior of gitweb, so that it verifies that the box isn't inundated with before attempting to serve gitweb. If the box is overloaded, it basically returns a 503 Server Unavailable until the load falls below the defined threshold. This helps dramatically if you have a box that's I/O bound, reaches a certain load and you don't want gitweb, the I/O hog that it is, increasing the pain the server is already undergoing. This behavior is controlled by $maxload configuration variable. Default is a load of 300, which for most cases should never be hit. Unset it (set it to undefined value, i.e. undef) to turn off checking. Currently it requires that '/proc/loadavg' file exists, otherwise the load check is bypassed (load is taken to be 0). So platforms that do not implement '/proc/loadavg' currently cannot use this feature (provisions are included for additional checks to be added by others). There is simple test in t/t9501-gitweb-standalone-http-status.sh to check that it correctly returns "503 Service Unavailable" if load is too high, and also if there are any Perl warnings or errors. Signed-off-by: John 'Warthog9' Hawley <warthog9@kernel.org> Signed-off-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
89 lines
2.1 KiB
Bash
89 lines
2.1 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2007 Jakub Narebski
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#
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gitweb_init () {
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safe_pwd="$(perl -MPOSIX=getcwd -e 'print quotemeta(getcwd)')"
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cat >gitweb_config.perl <<EOF
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#!/usr/bin/perl
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# gitweb configuration for tests
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our \$version = 'current';
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our \$GIT = 'git';
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our \$projectroot = "$safe_pwd";
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our \$project_maxdepth = 8;
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our \$home_link_str = 'projects';
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our \$site_name = '[localhost]';
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our \$site_header = '';
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our \$site_footer = '';
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our \$home_text = 'indextext.html';
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our @stylesheets = ('file:///$TEST_DIRECTORY/../gitweb/gitweb.css');
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our \$logo = 'file:///$TEST_DIRECTORY/../gitweb/git-logo.png';
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our \$favicon = 'file:///$TEST_DIRECTORY/../gitweb/git-favicon.png';
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our \$projects_list = '';
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our \$export_ok = '';
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our \$strict_export = '';
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our \$maxload = undef;
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EOF
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cat >.git/description <<EOF
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$0 test repository
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EOF
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}
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gitweb_run () {
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GATEWAY_INTERFACE='CGI/1.1'
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HTTP_ACCEPT='*/*'
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REQUEST_METHOD='GET'
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SCRIPT_NAME="$TEST_DIRECTORY/../gitweb/gitweb.perl"
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QUERY_STRING=""$1""
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PATH_INFO=""$2""
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export GATEWAY_INTERFACE HTTP_ACCEPT REQUEST_METHOD \
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SCRIPT_NAME QUERY_STRING PATH_INFO
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GITWEB_CONFIG=$(pwd)/gitweb_config.perl
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export GITWEB_CONFIG
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# some of git commands write to STDERR on error, but this is not
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# written to web server logs, so we are not interested in that:
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# we are interested only in properly formatted errors/warnings
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rm -f gitweb.log &&
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perl -- "$SCRIPT_NAME" \
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>gitweb.output 2>gitweb.log &&
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perl -w -e '
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open O, ">gitweb.headers";
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while (<>) {
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print O;
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last if (/^\r$/ || /^$/);
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}
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open O, ">gitweb.body";
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while (<>) {
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print O;
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}
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close O;
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' gitweb.output &&
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if grep '^[[]' gitweb.log >/dev/null 2>&1; then false; else true; fi
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# gitweb.log is left for debugging
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# gitweb.output is used to parse HTTP output
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# gitweb.headers contains only HTTP headers
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# gitweb.body contains body of message, without headers
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}
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. ./test-lib.sh
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if ! test_have_prereq PERL; then
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say 'skipping gitweb tests, perl not available'
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test_done
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fi
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perl -MEncode -e 'decode_utf8("", Encode::FB_CROAK)' >/dev/null 2>&1 || {
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say 'skipping gitweb tests, perl version is too old'
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test_done
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}
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gitweb_init
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