jobd/update.sh

   1 #!/bin/sh
   2
   3 . @basedir@/shlib.sh
   4
   5 set -e
   6
   7 if [ $# -ne 1 ]; then
   8         echo "Usage: update.sh projname" >&2
   9         exit 1
  10 fi
  11
  12 # date -R is linux-only, POSIX equivalent is '+%a, %d %b %Y %T %z'
  13 datefmt='+%a, %d %b %Y %T %z'
  14
  15 git_fetch_q_progress() {
  16         PATH="$var_git_exec_path:$cfg_basedir/bin:$PATH" @basedir@/jobd/git-fetch-q-progress.sh "$@"
  17 }
  18
  19 # freshen_loose_objects full-sha ...
  20 # if "$n" is a loose object, set its modification time to now
  21 # otherwise silently do nothing with no error.  To facilitate conversion
  22 # of mirror projects to push projects we also add group write  permission.
  23 freshen_loose_objects() {
  24         _list=
  25         for _sha; do
  26                 _fn="${_sha#??}"
  27                 _shard="${_sha%$_fn}"
  28                 _list="$_list objects/$_shard/$_fn"
  29         done
  30         if [ -n "$_list" ]; then
  31                 chmod ug+w $_list 2>/dev/null || :
  32                 touch -c $_list 2>/dev/null || :
  33         fi
  34 }
  35
  36 # darcs fast-export | git fast-import with error handling
  37 git_darcs_fetch() (
  38         set_utf8_locale
  39         _err1=
  40         _err2=
  41         exec 3>&1
  42         { read -r _err1 || :; read -r _err2 || :; } <<-EOT
  43         $(
  44                 exec 4>&3 3>&1 1>&4 4>&-
  45                 {
  46                         _e1=0
  47                         "$cfg_basedir"/bin/darcs-fast-export \
  48                                 --export-marks="$(pwd)/dfe-marks" \
  49                                 --import-marks="$(pwd)/dfe-marks" "$1" 3>&- || _e1=$?
  50                         echo $_e1 >&3
  51                 } |
  52                 {
  53                         _e2=0
  54                         git fast-import \
  55                                 --export-marks="$(pwd)/gfi-marks" \
  56                                 --export-pack-edges="$(pwd)/gfi-packs" \
  57                                 --import-marks="$(pwd)/gfi-marks" \
  58                                 --force 3>&- || _e2=$?
  59                         echo $_e2 >&3
  60                 }
  61         )
  62         EOT
  63         exec 3>&-
  64         [ "$_err1" = 0 ] && [ "$_err2" = 0 ]
  65         return $?
  66 )
  67
  68 # bzr fast-export | git fast-import with error handling
  69 git_bzr_fetch() (
  70         set_utf8_locale
  71         BZR_LOG=/dev/null
  72         export BZR_LOG
  73         _err1=
  74         _err2=
  75         exec 3>&1
  76         { read -r _err1 || :; read -r _err2 || :; } <<-EOT
  77         $(
  78                 exec 4>&3 3>&1 1>&4 4>&-
  79                 {
  80                         _e1=0
  81                         bzr fast-export --plain \
  82                                 --export-marks="$(pwd)/bfe-marks" \
  83                                 --import-marks="$(pwd)/bfe-marks" "$1" 3>&- || _e1=$?
  84                         echo $_e1 >&3
  85                 } |
  86                 {
  87                         _e2=0
  88                         git fast-import \
  89                                 --export-marks="$(pwd)/gfi-marks" \
  90                                 --export-pack-edges="$(pwd)/gfi-packs" \
  91                                 --import-marks="$(pwd)/gfi-marks" \
  92                                 --force 3>&- || _e2=$?
  93                         echo $_e2 >&3
  94                 }
  95         )
  96         EOT
  97         exec 3>&-
  98         [ "$_err1" = 0 ] && [ "$_err2" = 0 ]
  99         return $?
 100 )
 101
 102 [ -n "$cfg_mirror" ] || { echo "Mirroring is disabled" >&2; exit 0; }
 103
 104 umask 002
 105 [ "$cfg_permission_control" != "Hooks" ] || umask 000
 106 clean_git_env
 107
 108 proj="${1%.git}"
 109 cd "$cfg_reporoot/$proj.git"
 110
 111 # Activate a mini-gc if needed
 112 # We do this here as well as after a successful fetch so that if we're stuck
 113 # in a fetch loop where fetches are succeeding in fetching new packs but the
 114 # ref update is failing for some reason (perhaps a non-commit under refs/heads)
 115 # and a previous invokation therefore had a "bang" exit then we will still
 116 # get the .needsgc flag set in a timely fashion to avoid excess pack build up.
 117 check_and_set_needsgc
 118
 119 trap 'if [ $? != 0 ]; then echo "update failed dir: $PWD" >&2; fi; rm -f "$bang_log"' EXIT
 120 trap 'exit 130' INT
 121 trap 'exit 143' TERM
 122
 123 if [ "${force_update:-0}" = "0" ] && check_interval lastrefresh $cfg_min_mirror_interval; then
 124         progress "= [$proj] update skip (last at $(config_get lastrefresh))"
 125         exit 0
 126 fi
 127 if [ -e .nofetch ]; then
 128         progress "x [$proj] update disabled (.nofetch exists)"
 129         exit 0
 130 fi
 131 progress "+ [$proj] update ($(date))"
 132
 133 # Any pre-existing FETCH_HEAD from a previous fetch, failed or not, is garbage
 134 rm -f FETCH_HEAD
 135
 136 # Remove any stale ref locks
 137 clear_stale_ref_locks
 138
 139 # A previous failed update attempt can leave a huge tmp_pack_XXXXXX file behind.
 140 # Since no pushes are allowed to mirrors, we know that any such files that exist
 141 # at this point in time are garbage and can be safely deleted, we do not even
 142 # need to check how old they are.  A tmp_idx_XXXXXX file is also created during
 143 # the later stages of the fetch process, so we kill any of those as well.
 144 find -L objects/pack -maxdepth 1 -type f -name "tmp_pack_?*" -exec rm -f '{}' + || :
 145 find -L objects/pack -maxdepth 1 -type f -name "tmp_idx_?*" -exec rm -f '{}' + || :
 146
 147 # Make sure we have a reflogs subdirectory and abort the update if not
 148 # This should not count as a normal "bang" failure if unsuccessful
 149 [ -d reflogs ] || mkdir -p reflogs >/dev/null 2>&1 || :
 150 [ -d reflogs ]
 151
 152 keep_bang_log=
 153 do_check_after_refs=1
 154 bang_setup
 155 bang_action="update"
 156 bang_trap() {
 157         if [ -n "$1" ]; then
 158                 # Throttle retries
 159                 # Since gitweb shows the .last_refresh date, it's safe to update
 160                 # gitweb.lastrefresh to throttle the updates w/o corrupting the
 161                 # last refresh date display on the gitweb summary page
 162                 # It's therefore important that we do NOT touch .last_refresh here
 163                 config_set lastrefresh "$(date "$datefmt")"
 164         fi
 165 }
 166
 167 bang echo "Project: $proj"
 168 bang echo "   Date: $(TZ=UTC date '+%Y-%m-%d %T UTC')"
 169 bang echo ""
 170 mail="$(config_get owner)" || :
 171 url="$(config_get baseurl)" || :
 172 case "$url" in *"       "*|*" "*|"")
 173         bang_eval 'echo "Bad mirror URL (\"$url\")"; ! :'
 174         exit 1
 175 esac
 176 bang echo "Mirroring from URL \"$url\""
 177 bang echo ""
 178 statusok="$(git config --bool gitweb.statusupdates 2>/dev/null || echo true)"
 179 mailaddrs=
 180 [ "$statusok" = "false" ] || [ -z "$mail" ] || mailaddrs="$mail"
 181 [ -z "$cfg_admincc" ] || [ "$cfg_admincc" = "0" ] || [ -z "$cfg_admin" ] ||
 182 if [ -z "$mailaddrs" ]; then mailaddrs="$cfg_admin"; else mailaddrs="$mailaddrs,$cfg_admin"; fi
 183
 184 bang_eval "git for-each-ref --format '%(refname) %(objectname)' >.refs-temp"
 185 bang_eval "LC_ALL=C sort -b -k1,1 <.refs-temp >.refs-before"
 186
 187 check_after_refs() {
 188         [ -n "$do_check_after_refs" ] || return 0
 189         bang_eval "git for-each-ref --format '%(refname) %(objectname)' >.refs-temp"
 190         bang_eval "LC_ALL=C sort -b -k1,1 <.refs-temp >.refs-after"
 191         refschanged=
 192         cmp -s .refs-before .refs-after || refschanged=1
 193         do_check_after_refs=
 194 }
 195
 196 ! [ -e .delaygc ] || >.allowgc || :
 197
 198 # Make sure we don't get any unwanted loose objects
 199 # Starting with Git v2.10.0 fast-import can generate loose objects unless we
 200 # tweak its configuration to prevent that
 201 git_add_config 'fetch.unpackLimit=1'
 202 # Note the git config documentation is wrong
 203 # transfer.unpackLimit, if set, overrides fetch.unpackLimit
 204 git_add_config 'transfer.unpackLimit=1'
 205 # But not the Git v2.10.0 and later fastimport.unpackLimit which improperly uses <= instead of <
 206 git_add_config 'fastimport.unpackLimit=0'
 207
 208 # remember the starting time so we can easily combine fetched loose objects
 209 # we sleep for 1 second after creating .needspack to make sure all objects are newer
 210 if ! [ -e .needspack ]; then
 211         rm -f .needspack
 212         >.needspack
 213         sleep 1
 214 fi
 215
 216 case "$url" in
 217         svn://* | svn+http://* | svn+https://* | svn+file://* | svn+ssh://*)
 218                 [ -n "$cfg_mirror_svn" ] || { echo "Mirroring svn is disabled" >&2; exit 0; }
 219                 # Allow the username to be specified in the "svn-credential.svn.username"
 220                 # property and the password in the "svn-credential.svn.password" property
 221                 # Use an 'anonsvn' username by default as is commonly used for anonymous svn
 222                 # Default the password to the same as the username
 223                 # The password property will be ignored unless a username has been specified
 224                 if svnuser="$(git config --get svn-credential.svn.username)" && [ -n "$svnuser" ]; then
 225                         if ! svnpass="$(git config --get svn-credential.svn.password)"; then
 226                                 svnpass="$svnuser"
 227                         fi
 228                         url1="${url#*://}"
 229                         url1="${url1%%/*}"
 230                         case "$url1" in ?*"@"?*)
 231                                 urlsch="${url%%://*}"
 232                                 url="$urlsch://${url#*@}"
 233                         esac
 234                 else
 235                         # As a fallback, check in the URL, just in case
 236                         url1="${url#*://}"
 237                         url1="${url1%%/*}"
 238                         svnuser=
 239                         case "$url1" in ?*"@"?*)
 240                                 urlsch="${url%%://*}"
 241                                 url="$urlsch://${url#*@}"
 242                                 url1="${url1%%@*}"
 243                                 svnuser="${url1%%:*}"
 244                                 if [ -n "$svnuser" ]; then
 245                                         svnpass="$svnuser"
 246                                         case "$url1" in *":"*)
 247                                                 svnpass="${url1#*:}"
 248                                         esac
 249                                 fi
 250                         esac
 251                         if [ -z "$svnuser" ]; then
 252                                 svnuser="anonsvn"
 253                                 svnpass="anonsvn"
 254                         fi
 255                 fi
 256                 GIT_ASKPASS_PASSWORD="$svnpass"
 257                 export GIT_ASKPASS_PASSWORD
 258                 # Update the git svn url to match baseurl but be cognizant of any
 259                 # needed prefix changes.  See the comments in taskd/clone.sh about
 260                 # why we need to put up with a prefix in the first place.
 261                 case "$url" in svn+ssh://*) svnurl="$url";; *) svnurl="${url#svn+}";; esac
 262                 svnurl="${svnurl%/}"
 263                 svnurlold="$(config_get svnurl)" || :
 264                 if [ "$svnurl" != "$svnurlold" ]; then
 265                         # We better already have an svn-remote.svn.fetch setting
 266                         bang test -n "$(git config --get-all svn-remote.svn.fetch)" || :
 267                         # the only way to truly know what the proper prefix is
 268                         # is to attempt a fresh git-svn init -s on the new url
 269                         rm -rf svn-new-url || :
 270                         # We require svn info to succeed on the URL otherwise it's
 271                         # simply not a valid URL and without using -s on the init it
 272                         # will not otherwise be tested until the fetch
 273                         bang eval 'svn --non-interactive --username "$svnuser" --password "$svnpass" info "$svnurl" >/dev/null'
 274                         bang mkdir svn-new-url
 275                         GIT_DIR=svn-new-url bang git init --bare --quiet
 276                         # We initially use -s for the init which will possibly shorten
 277                         # the URL.  However, the shortening can fail if a password is
 278                         # not required for the longer version but is for the shorter,
 279                         # so try again without -s if the -s version fails.
 280                         cmdstr='git svn init --username="$svnuser" --prefix "" -s "$svnurl" <"$mtlinesfile" >/dev/null 2>&1 || '
 281                         cmdstr="$cmdstr"'git svn init --username="$svnuser" --prefix "" "$svnurl" <"$mtlinesfile" >/dev/null 2>&1'
 282                         GIT_DIR=svn-new-url bang eval "$cmdstr"
 283                         gitsvnurl="$(GIT_DIR=svn-new-url git config --get svn-remote.svn.url)" || :
 284                         gitsvnfetch="$(GIT_DIR=svn-new-url git config --get svn-remote.svn.fetch)" || :
 285                         gitsvnprefixnew="${gitsvnfetch%%:*}"
 286                         gitsvnsuffixnew="${gitsvnprefixnew##*/}"
 287                         gitsvnprefixnew="${gitsvnprefixnew%$gitsvnsuffixnew}"
 288                         rm -rf svn-new-url || :
 289                         # Using GIT_DIR= with bang leaves it set to svn-new-url, so reset it to .
 290                         GIT_DIR=.
 291                         if [ "$gitsvnurl" != "$(git config --get svn-remote.svn.url || :)" ]; then
 292                                 # The url has been changed.
 293                                 # We must update the url and replace the prefix on all config items
 294                                 gitsvnfetch="$(git config --get-all svn-remote.svn.fetch | head -1)" || :
 295                                 gitsvnprefixold="${gitsvnfetch%%:*}"
 296                                 gitsvnsuffixold="${gitsvnprefixold##*/}"
 297                                 gitsvnprefixold="${gitsvnprefixold%$gitsvnsuffixold}"
 298                                 git config --remove-section 'svn-remote.svnnew' 2>/dev/null || :
 299                                 git config 'svn-remote.svnnew.url' "$gitsvnurl"
 300                                 git config --get-regexp '^svn-remote\.svn\.' |
 301                                 while read -r sname sval; do
 302                                         case "$sname" in
 303                                         svn-remote.svn.fetch|svn-remote.svn.branches|svn-remote.svn.tags)
 304                                                 sname="${sname#svn-remote.svn.}"
 305                                                 sval="${sval#$gitsvnprefixold}"
 306                                                 bang git config --add "svn-remote.svnnew.$sname" "${gitsvnprefixnew}$sval"
 307                                         esac
 308                                 done
 309                                 test $? -eq 0
 310                                 bang git config -f svn/.metadata svn-remote.svn.reposRoot "$gitsvnurl"
 311                                 bang git config --remove-section svn-remote.svn
 312                                 bang git config --rename-section svn-remote.svnnew svn-remote.svn
 313                         fi
 314                         bang config_set svnurl "$svnurl"
 315                 fi
 316                 # remove any stale *.lock files greater than 1 hour old in case
 317                 # git-svn was killed on the last update because it took too long
 318                 find -L svn -type f -name '*.lock' -mmin +60 -exec rm -f '{}' + 2>/dev/null || :
 319                 GIROCCO_DIVERT_GIT_SVN_AUTO_GC=1
 320                 export GIROCCO_DIVERT_GIT_SVN_AUTO_GC
 321                 unset GIROCCO_SUPPRESS_AUTO_GC_UPDATE
 322                 saveconfig="$GIT_CONFIG_PARAMETERS"
 323                 git_add_config 'gc.auto=1'
 324                 git_add_config 'gc.autoPackLimit=1'
 325                 GIT_DIR=. bang git svn fetch --log-window-size=$var_log_window_size --username="$svnuser" --quiet <"$mtlinesfile"
 326                 GIROCCO_SUPPRESS_AUTO_GC_UPDATE=1
 327                 export GIROCCO_SUPPRESS_AUTO_GC_UPDATE
 328                 unset GIROCCO_DIVERT_GIT_SVN_AUTO_GC
 329                 unset GIT_CONFIG_PARAMETERS
 330                 [ -z "$saveconfig" ] || {
 331                         GIT_CONFIG_PARAMETERS="$saveconfig"
 332                         export GIT_CONFIG_PARAMETERS
 333                 }
 334                 # git svn does not preserve group permissions in the svn subdirectory
 335                 chmod -R ug+rw,o+r svn
 336                 # git svn also leaves behind ref turds that end with @nnn
 337                 # We get rid of them now
 338                 git for-each-ref --format='%(refname)' |
 339                 LC_ALL=C sed '/^..*@[1-9][0-9]*$/!d; s/^/delete /' |
 340                 git_updateref_stdin
 341                 unset GIT_ASKPASS_PASSWORD
 342                 ;;
 343         darcs://* | darcs+http://* | darcs+https://*)
 344                 [ -n "$cfg_mirror_darcs" ] || { echo "Mirroring darcs is disabled" >&2; exit 0; }
 345                 case "$url" in
 346                         darcs://*) darcsurl="http://${url#darcs://}";;
 347                         *) darcsurl="${url#darcs+}";;
 348                 esac
 349                 # remove any stale lock files greater than 1 hour old in case
 350                 # darcs_fast_export was killed on the last update because it took too long
 351                 find -L *.darcs -maxdepth 2 -type f -name 'lock' -mmin +60 -exec rm -f '{}' + 2>/dev/null || :
 352                 bang git_darcs_fetch "$darcsurl"
 353                 ;;
 354         bzr://*)
 355                 [ -n "$cfg_mirror_bzr" ] || { echo "Mirroring bzr is disabled" >&2; exit 0; }
 356                 bzrurl="${url#bzr://}"
 357                 bang git_bzr_fetch "$bzrurl"
 358                 ;;
 359         hg+http://* | hg+https://* | hg+file://* | hg+ssh://*)
 360                 [ -n "$cfg_mirror_hg" ] || { echo "Mirroring hg is disabled" >&2; exit 0; }
 361                 # We just remove hg+ here, so hg+http://... becomes http://...
 362                 hgurl="${url#hg+}"
 363                 # Fetch any new updates
 364                 bang hg -R "$(pwd)/repo.hg" pull
 365                 # Do the fast-export | fast-import
 366                 bang git_hg_fetch
 367                 ;;
 368         *)
 369                 [ "$url" = "$(git config --get remote.origin.url || :)" ] || bang config_set_raw remote.origin.url "$url"
 370                 pruneopt=--prune
 371                 [ "$(git config --bool fetch.prune 2>/dev/null || :)" != "false" ] || pruneopt=
 372                 if ! is_gfi_mirror_url "$url"; then
 373                         lastwasclean=
 374                         [ "$(git config --bool girocco.lastupdateclean 2>/dev/null || :)" != "true" ] || lastwasclean=1
 375                         nextisclean=
 376                         [ "$(git config --bool girocco.cleanmirror 2>/dev/null || :)" != "true" ] || nextisclean=1
 377                         if [ "$nextisclean" != "$lastwasclean" ]; then
 378                                 if [ -n "$nextisclean" ]; then
 379                                         git config --replace-all remote.origin.fetch "+refs/heads/*:refs/heads/*"
 380                                         git config --add remote.origin.fetch "+refs/tags/*:refs/tags/*"
 381                                         git config --add remote.origin.fetch "+refs/notes/*:refs/notes/*"
 382                                         git config --add remote.origin.fetch "+refs/top-bases/*:refs/top-bases/*"
 383                                 else
 384                                         git config --replace-all remote.origin.fetch "+refs/*:refs/*"
 385                                 fi
 386                         fi
 387                 fi
 388                 # remember the starting time so we can easily detect new packs for fast-import mirrors
 389                 # we sleep for 1 second after creating .gfipack to make sure all packs are newer
 390                 if is_gfi_mirror_url "$url" && [ ! -e .gfipack ]; then
 391                         rm -f .gfipack
 392                         >.gfipack
 393                         sleep 1
 394                 fi
 395                 fetcharg="default"
 396                 git config remotes.default >/dev/null 2>&1 || fetcharg="--all"
 397                 fetchcmd="git fetch"
 398                 [ "$show_progress" != "0" ] || fetchcmd="git fetch -q"
 399                 if [ -n "$var_have_git_171" ] && [ "${show_progress:-0}" != "0" ]; then
 400                         # git fetch learned --progress in v1.7.1
 401                         case "$show_progress" in
 402                         [2-9]*|1[0-9]*)
 403                                 # full volume progress with all the spammy noise
 404                                 fetchcmd="git fetch --progress"
 405                                 ;;
 406                         *)
 407                                 # a kinder, gentler progress that doesn't leave one
 408                                 # covered all over in exploded bits of spam afterwards
 409                                 fetchcmd="git_fetch_q_progress"
 410                                 ;;
 411                         esac
 412                 fi
 413                 # It's possible for a fetch to actually do something while still returning
 414                 # a non-zero result (perhaps some of the refs were updated but some were
 415                 # not -- a malicious Git-impersonation trying to set refs/heads/... refs
 416                 # to non-commit objects for example).
 417                 GIT_SSL_NO_VERIFY=1 bang_catch eval "$fetchcmd" $pruneopt --multiple "$fetcharg"
 418                 # If we did fetch anything, don't treat it as an error, but do keep the log;
 419                 # otherwise invoke bang_failed as for a normal failure
 420                 if [ "${bang_errcode:-0}" != "0" ]; then
 421                         save_bang_errcode="$bang_errcode"
 422                         check_after_refs
 423                         if [ -n "$refschanged" ]; then
 424                                 keep_bang_log="git fetch${pruneopt:+ $pruneopt} --multiple $fetcharg"
 425                         else
 426                                 bang_cmd="git fetch${pruneopt:+ $pruneopt} --multiple $fetcharg"
 427                                 bang_errcode="$save_bang_errcode"
 428                                 bang_failed
 429                         fi
 430                 fi
 431                 if ! is_gfi_mirror_url "$url" && [ "$nextisclean" != "$lastwasclean" ]; then
 432                         if [ -n "$nextisclean" ]; then
 433                                 # We must manually purge the unclean refs now as even prune won't do it
 434                                 git for-each-ref --format='%(refname)' |
 435                                 LC_ALL=C sed \
 436                                         -e '/^refs\/heads\//d' \
 437                                         -e '/^refs\/tags\//d' \
 438                                         -e '/^refs\/notes\//d' \
 439                                         -e '/^refs\/top-bases\//d' \
 440                                         -e 's/^/delete /' |
 441                                 git_updateref_stdin
 442                         fi
 443                         git config --bool girocco.lastupdateclean ${nextisclean:-0}
 444                 fi
 445                 if [ -e .gfipack ] && is_gfi_mirror_url "$url"; then
 446                         find -L objects/pack -type f -newer .gfipack -name "pack-$octet20*.pack" -print >>gfi-packs
 447                         rm -f .gfipack
 448                 fi
 449                 ;;
 450 esac
 451
 452 # The objects subdirectories permissions must be updated now.
 453 # In the case of a dumb http clone, the permissions will not be correct
 454 # (missing group write) despite the core.sharedrepository=1 setting!
 455 # The objects themselves seem to have the correct permissions.
 456 # This problem appears to have been fixed in the most recent git versions.
 457 perms=g+w
 458 [ "$cfg_permission_control" != "Hooks" ] || perms=go+w
 459 chmod $perms $(find -L objects -maxdepth 1 -type d) 2>/dev/null || :
 460
 461 bang git update-server-info
 462
 463 # We maintain the last refresh date in two places deliberately
 464 # so that it's available as part of the config data and also
 465 # as a standalone file timestamp that can be accessed without git.
 466 bang config_set lastrefresh "$(date "$datefmt")"
 467 { >.last_refresh; } 2>/dev/null || :
 468
 469 # Check to see if any refs changed
 470 check_after_refs
 471
 472 # Pack all refs if any changed to keep things as efficient as possible
 473 # Project mirror updates do not occur that often therefore this is a win
 474 # However, if pack-refs fails for some reason, we can just ignore and continue
 475 # The "--prune" option is the default since v1.5.0 but it serves as "documentation" here
 476 [ -z "$refschanged" ] || git pack-refs --all --prune || :
 477
 478 # Force a mini-gc if $Girocco::Config::delay_gfi_redelta is false and there's
 479 # at least one gfi pack present now
 480 if [ -z "$cfg_delay_gfi_redelta" ] && ! [ -e .needsgc ] &&
 481    [ -f gfi-packs ] && [ -s gfi-packs ] && is_gfi_mirror_url "$url"; then
 482         >.needsgc
 483 fi
 484
 485 # Activate a mini-gc if needed
 486 check_and_set_needsgc
 487
 488 # Look at which refs changed and trigger ref-change for these
 489 sockpath="$cfg_chroot/etc/taskd.socket"
 490 if [ -n "$refschanged" ]; then
 491         bang config_set lastreceive "$(date '+%a, %d %b %Y %T %z')"
 492         # We always use UTC for the log timestamp so that chroot and non-chroot match up.
 493         # We don't have to worry about multiple log files since only one update runs
 494         lognamets="$(TZ=UTC date '+%Y%m%d_%H%M%S')"
 495         loghhmmss="${lognamets##*_}"
 496         logname="reflogs/${lognamets%%_*}"
 497         # We freshen the mod time to now on any old or new ref that is a loose object
 498         # For old refs we do it so we will be able to keep them around for 1 day
 499         # For new refs we do it in case we are about to run gc and the new ref
 500         # actually points to an oldish loose object that had been unreachable
 501         # We probably do not need to do it for new refs as Git tries to do that,
 502         # but since we're already doing it for old refs (which Git does not do),
 503         # it's almost no extra work for new refs, just in case.
 504         {
 505                 echo "ref-changes %$proj% $proj"
 506                 LC_ALL=C join .refs-before .refs-after |
 507                 LC_ALL=C sed -e '/^[^ ][^ ]* \([^ ][^ ]*\) \1$/d' |
 508                         while read ref old new; do
 509                                 echo "$loghhmmss $old $new $ref" >&3
 510                                 freshen_loose_objects "$old" "$new"
 511                                 echo "$old $new $ref"
 512                         done
 513                 LC_ALL=C join -v 1 .refs-before .refs-after |
 514                         while read ref old; do
 515                                 echo "$loghhmmss $old 0000000000000000000000000000000000000000 $ref" >&3
 516                                 freshen_loose_objects "$old"
 517                                 echo "$old 0000000000000000000000000000000000000000 $ref"
 518                         done
 519                 LC_ALL=C join -v 2 .refs-before .refs-after |
 520                         while read ref new; do
 521                                 echo "$loghhmmss 0000000000000000000000000000000000000000 $new $ref" >&3
 522                                 freshen_loose_objects "$new"
 523                                 echo "0000000000000000000000000000000000000000 $new $ref"
 524                         done
 525                 git for-each-ref --format='%(objectname) %(objectname) %(refname)' refs/heads
 526                 echo "done ref-changes %$proj% $proj"
 527         } >.refs-temp 3>>"$logname"
 528         if [ -S "$sockpath" ]; then
 529                         trap ':' PIPE
 530                         nc_openbsd -w 15 -U "$sockpath" <.refs-temp || :
 531                         trap - PIPE
 532         fi
 533         bang config_set lastchange "$(date '+%a, %d %b %Y %T %z')"
 534         bang_eval "git for-each-ref --sort=-committerdate --format='%(committerdate:iso8601)' \
 535                 --count=1 refs/heads >info/lastactivity"
 536         ! [ -d htmlcache ] || { >htmlcache/changed; } 2>/dev/null || :
 537         rm -f .delaygc .allowgc
 538         if
 539                 [ "${cfg_autogchack:-0}" != "0" ] &&
 540                 [ "$(git config --get --bool girocco.autogchack 2>/dev/null)" != "false" ]
 541         then
 542                 mv -f .refs-after .refs-last
 543         fi
 544 fi
 545
 546 # If the repository does not yet have a valid HEAD symref try to set one
 547 # If an empty repository was cloned and then later becomes unempty you just
 548 # lose out on the fancy "symref=HEAD:" logic and get this version instead
 549 check_and_set_head || :
 550
 551 rm -f .refs-before .refs-after .refs-temp FETCH_HEAD
 552
 553 if is_banged; then
 554         [ -z "$mailaddrs" ] || ! was_banged_message_sent ||
 555         {
 556                 echo "$proj update succeeded - failure recovery"
 557                 echo "this status message may be disabled on the project admin page"
 558         } | mailref "update@$cfg_gitweburl/$proj.git" -s "[$cfg_name] $proj update succeeded" "$mailaddrs" || :
 559         bang_reset
 560 fi
 561
 562 if [ -n "$keep_bang_log" ] && [ -s "$bang_log" ]; then
 563         cat "$bang_log" >.banglog
 564         echo "" >>.banglog
 565         echo "$keep_bang_log failed with error code $save_bang_errcode" >>.banglog
 566 fi
 567
 568 progress "- [$proj] update ($(date))"