taskd/mail.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2007 Andy Parkins
   4 #
   5 # An example hook script to mail out commit update information.  This hook
   6 # sends emails listing new revisions to the repository introduced by the
   7 # change being reported.  The rule is that (for branch updates) each commit
   8 # will appear on one email and one email only.
   9 #
  10 # =================
  11 # This is Girocco-customized version. No matter what is said below, it has
  12 # following changes:
  13 # * Calling with arguments is same as giving them on stdin.
  14 # * Optional fourth parameter is project name, used at most places instead
  15 #   of description.
  16 # * Optional fifth parameter is email sender.
  17 # * Load shlib.
  18 # * Default subject prefix is site name.
  19 # * Unsubscribe instructions in email footer.
  20 # * Default showrev includes gitweb link and show -C.
  21 # * Nicer subject line.
  22 # * Limit mail size to 256kb.
  23 # =================
  24 #
  25 # This hook is stored in the contrib/hooks directory.  Your distribution
  26 # will have put this somewhere standard.  You should make this script
  27 # executable then link to it in the repository you would like to use it in.
  28 # For example, on debian the hook is stored in
  29 # /usr/share/doc/git-core/contrib/hooks/post-receive-email:
  30 #
  31 #  chmod a+x post-receive-email
  32 #  cd /path/to/your/repository.git
  33 #  ln -sf /usr/share/doc/git-core/contrib/hooks/post-receive-email hooks/post-receive
  34 #
  35 # This hook script assumes it is enabled on the central repository of a
  36 # project, with all users pushing only to it and not between each other.  It
  37 # will still work if you don't operate in that style, but it would become
  38 # possible for the email to be from someone other than the person doing the
  39 # push.
  40 #
  41 # Config
  42 # ------
  43 # hooks.mailinglist
  44 #   This is the list that all pushes will go to; leave it blank to not send
  45 #   emails for every ref update.
  46 # hooks.announcelist
  47 #   This is the list that all pushes of annotated tags will go to.  Leave it
  48 #   blank to default to the mailinglist field.  The announce emails lists
  49 #   the short log summary of the changes since the last annotated tag.
  50 # hooks.envelopesender
  51 #   If set then the -f option is passed to sendmail to allow the envelope
  52 #   sender address to be set
  53 # hooks.emailprefix
  54 #   All emails have their subjects prefixed with this prefix, or "[SCM]"
  55 #   if emailprefix is unset, to aid filtering
  56 # hooks.showrev
  57 #   The shell command used to format each revision in the email, with
  58 #   "%s" replaced with the commit id.  Defaults to "git rev-list -1
  59 #   --pretty %s", displaying the commit id, author, date and log
  60 #   message.  To list full patches separated by a blank line, you
  61 #   could set this to "git show -C %s; echo".
  62 #   To list a gitweb/cgit URL *and* a full patch for each change set, use this:
  63 #     "t=%s; printf 'http://.../?id=%%s' \$t; echo;echo; git show -C \$t; echo"
  64 #   Be careful if "..." contains things that will be expanded by shell "eval"
  65 #   or printf.
  66 #
  67 # Notes
  68 # -----
  69 # All emails include the headers "X-Git-Refname", "X-Git-Oldrev",
  70 # "X-Git-Newrev", and "X-Git-Reftype" to enable fine tuned filtering and
  71 # give information for debugging.
  72 #
  73
  74 # ---------------------------- Functions
  75
  76 #
  77 # Top level email generation function.  This decides what type of update
  78 # this is and calls the appropriate body-generation routine after outputting
  79 # the common header
  80 #
  81 # Note this function doesn't actually generate any email output, that is
  82 # taken care of by the functions it calls:
  83 #  - generate_email_header
  84 #  - generate_create_XXXX_email
  85 #  - generate_update_XXXX_email
  86 #  - generate_delete_XXXX_email
  87 #  - generate_email_footer
  88 #
  89 generate_email()
  90 {
  91         # --- Arguments
  92         oldrev=$(git rev-parse $1)
  93         newrev=$(git rev-parse $2)
  94         refname="$3"
  95
  96         # --- Interpret
  97         # 0000->1234 (create)
  98         # 1234->2345 (update)
  99         # 2345->0000 (delete)
 100         if expr "$oldrev" : '0*$' >/dev/null
 101         then
 102                 change_type="create"
 103         else
 104                 if expr "$newrev" : '0*$' >/dev/null
 105                 then
 106                         change_type="delete"
 107                 else
 108                         change_type="update"
 109                 fi
 110         fi
 111
 112         # --- Get the revision types
 113         newrev_type=$(git cat-file -t $newrev 2> /dev/null)
 114         oldrev_type=$(git cat-file -t "$oldrev" 2> /dev/null)
 115         case "$change_type" in
 116         create|update)
 117                 rev="$newrev"
 118                 rev_type="$newrev_type"
 119                 ;;
 120         delete)
 121                 rev="$oldrev"
 122                 rev_type="$oldrev_type"
 123                 ;;
 124         esac
 125
 126         # The revision type tells us what type the commit is, combined with
 127         # the location of the ref we can decide between
 128         #  - working branch
 129         #  - tracking branch
 130         #  - unannoted tag
 131         #  - annotated tag
 132         case "$refname","$rev_type" in
 133                 refs/tags/*,commit)
 134                         # un-annotated tag
 135                         refname_type="tag"
 136                         short_refname=${refname##refs/tags/}
 137                         ;;
 138                 refs/tags/*,tag)
 139                         # annotated tag
 140                         refname_type="annotated tag"
 141                         short_refname=${refname##refs/tags/}
 142                         # change recipients
 143                         if [ -n "$announcerecipients" ]; then
 144                                 recipients="$announcerecipients"
 145                         fi
 146                         ;;
 147                 refs/heads/*,commit)
 148                         # branch
 149                         refname_type="branch"
 150                         short_refname=${refname##refs/heads/}
 151                         ;;
 152                 refs/remotes/*,commit)
 153                         # tracking branch
 154                         refname_type="tracking branch"
 155                         short_refname=${refname##refs/remotes/}
 156                         echo >&2 "*** Push-update of tracking branch, $refname"
 157                         echo >&2 "***  - no email generated."
 158                         echo ""
 159                         exit 0
 160                         ;;
 161                 *)
 162                         # Anything else (is there anything else?)
 163                         echo >&2 "*** Unknown type of update to $refname ($rev_type)"
 164                         echo >&2 "***  - no email generated"
 165                         exit 1
 166                         ;;
 167         esac
 168
 169         # Check if we've got anyone to send to
 170         if [ -z "$recipients" ]; then
 171                 case "$refname_type" in
 172                         "annotated tag")
 173                                 config_name="hooks.announcelist"
 174                                 ;;
 175                         *)
 176                                 config_name="hooks.mailinglist"
 177                                 ;;
 178                 esac
 179                 echo >&2 "*** $config_name is not set so no email will be sent"
 180                 echo >&2 "*** for $refname update $oldrev->$newrev"
 181                 echo ""
 182                 exit 0
 183         fi
 184
 185         # Email parameters
 186         # The email subject will contain the best description of the ref
 187         # that we can build from the parameters
 188         describe=$(git describe $rev 2>/dev/null)
 189         if [ -z "$describe" ]; then
 190                 describe=$rev
 191         fi
 192
 193         generate_email_header
 194
 195         # Call the correct body generation function
 196         fn_name=general
 197         case "$refname_type" in
 198         "tracking branch"|branch)
 199                 fn_name=branch
 200                 ;;
 201         "annotated tag")
 202                 fn_name=atag
 203                 ;;
 204         esac
 205         generate_${change_type}_${fn_name}_email
 206
 207         generate_email_footer
 208 }
 209
 210 generate_email_header()
 211 {
 212         # --- Email (all stdout will be the email)
 213         # Generate header
 214         if [ -n "$emailsender" ]; then
 215                 echo "From: $emailsender"
 216         fi
 217         cat <<-EOF
 218         To: $recipients
 219         Subject: ${emailprefix}$projectname $refname_type $short_refname ${change_type}d: $describe
 220         EOF
 221         [ -z "$emailextraheader" ] || echo "$emailextraheader"
 222         cat <<-EOF
 223         X-Git-Refname: $refname
 224         X-Git-Reftype: $refname_type
 225         X-Git-Oldrev: $oldrev
 226         X-Git-Newrev: $newrev
 227
 228         This is an automated email from the git hooks/post-receive script. It was
 229         generated because a ref change was pushed to the repository containing
 230         the project $projectname.
 231
 232         The $refname_type, $short_refname has been ${change_type}d
 233         EOF
 234 }
 235
 236 generate_email_footer()
 237 {
 238         SPACE=" "
 239         cat <<-EOF
 240
 241
 242         $cfg_name automatic notification. Contact project admin $projectowner
 243         if you want to unsubscribe, or site admin $cfg_admin if you receive
 244         no reply.
 245         --${SPACE}
 246         $projectboth
 247         EOF
 248 }
 249
 250 # --------------- Branches
 251
 252 #
 253 # Called for the creation of a branch
 254 #
 255 generate_create_branch_email()
 256 {
 257         # This is a new branch and so oldrev is not valid
 258         echo "        at  $newrev ($newrev_type)"
 259         echo ""
 260
 261         echo $LOGBEGIN
 262         show_new_revisions
 263         echo $LOGEND
 264 }
 265
 266 #
 267 # Called for the change of a pre-existing branch
 268 #
 269 generate_update_branch_email()
 270 {
 271         # Consider this:
 272         #   1 --- 2 --- O --- X --- 3 --- 4 --- N
 273         #
 274         # O is $oldrev for $refname
 275         # N is $newrev for $refname
 276         # X is a revision pointed to by some other ref, for which we may
 277         #   assume that an email has already been generated.
 278         # In this case we want to issue an email containing only revisions
 279         # 3, 4, and N.  Given (almost) by
 280         #
 281         #  git rev-list N ^O --not --all
 282         #
 283         # The reason for the "almost", is that the "--not --all" will take
 284         # precedence over the "N", and effectively will translate to
 285         #
 286         #  git rev-list N ^O ^X ^N
 287         #
 288         # So, we need to build up the list more carefully.  git rev-parse
 289         # will generate a list of revs that may be fed into git rev-list.
 290         # We can get it to make the "--not --all" part and then filter out
 291         # the "^N" with:
 292         #
 293         #  git rev-parse --not --all | grep -v N
 294         #
 295         # Then, using the --stdin switch to git rev-list we have effectively
 296         # manufactured
 297         #
 298         #  git rev-list N ^O ^X
 299         #
 300         # This leaves a problem when someone else updates the repository
 301         # while this script is running.  Their new value of the ref we're
 302         # working on would be included in the "--not --all" output; and as
 303         # our $newrev would be an ancestor of that commit, it would exclude
 304         # all of our commits.  What we really want is to exclude the current
 305         # value of $refname from the --not list, rather than N itself.  So:
 306         #
 307         #  git rev-parse --not --all | grep -v $(git rev-parse $refname)
 308         #
 309         # Get's us to something pretty safe (apart from the small time
 310         # between refname being read, and git rev-parse running - for that,
 311         # I give up)
 312         #
 313         #
 314         # Next problem, consider this:
 315         #   * --- B --- * --- O ($oldrev)
 316         #          \
 317         #           * --- X --- * --- N ($newrev)
 318         #
 319         # That is to say, there is no guarantee that oldrev is a strict
 320         # subset of newrev (it would have required a --force, but that's
 321         # allowed).  So, we can't simply say rev-list $oldrev..$newrev.
 322         # Instead we find the common base of the two revs and list from
 323         # there.
 324         #
 325         # As above, we need to take into account the presence of X; if
 326         # another branch is already in the repository and points at some of
 327         # the revisions that we are about to output - we don't want them.
 328         # The solution is as before: git rev-parse output filtered.
 329         #
 330         # Finally, tags: 1 --- 2 --- O --- T --- 3 --- 4 --- N
 331         #
 332         # Tags pushed into the repository generate nice shortlog emails that
 333         # summarise the commits between them and the previous tag.  However,
 334         # those emails don't include the full commit messages that we output
 335         # for a branch update.  Therefore we still want to output revisions
 336         # that have been output on a tag email.
 337         #
 338         # Luckily, git rev-parse includes just the tool.  Instead of using
 339         # "--all" we use "--branches"; this has the added benefit that
 340         # "remotes/" will be ignored as well.
 341
 342         # List all of the revisions that were removed by this update, in a
 343         # fast forward update, this list will be empty, because rev-list O
 344         # ^N is empty.  For a non fast forward, O ^N is the list of removed
 345         # revisions
 346         fast_forward=""
 347         rev=""
 348         for rev in $(git rev-list $newrev..$oldrev)
 349         do
 350                 revtype=$(git cat-file -t "$rev")
 351                 echo "  discards  $rev ($revtype)"
 352         done
 353         if [ -z "$rev" ]; then
 354                 fast_forward=1
 355         fi
 356
 357         # List all the revisions from baserev to newrev in a kind of
 358         # "table-of-contents"; note this list can include revisions that
 359         # have already had notification emails and is present to show the
 360         # full detail of the change from rolling back the old revision to
 361         # the base revision and then forward to the new revision
 362         for rev in $(git rev-list $oldrev..$newrev)
 363         do
 364                 revtype=$(git cat-file -t "$rev")
 365                 echo "       via  $rev ($revtype)"
 366         done
 367
 368         if [ "$fast_forward" ]; then
 369                 echo "      from  $oldrev ($oldrev_type)"
 370         else
 371                 #  1. Existing revisions were removed.  In this case newrev
 372                 #     is a subset of oldrev - this is the reverse of a
 373                 #     fast-forward, a rewind
 374                 #  2. New revisions were added on top of an old revision,
 375                 #     this is a rewind and addition.
 376
 377                 # (1) certainly happened, (2) possibly.  When (2) hasn't
 378                 # happened, we set a flag to indicate that no log printout
 379                 # is required.
 380
 381                 echo ""
 382
 383                 # Find the common ancestor of the old and new revisions and
 384                 # compare it with newrev
 385                 baserev=$(git merge-base $oldrev $newrev)
 386                 rewind_only=""
 387                 if [ "$baserev" = "$newrev" ]; then
 388                         echo "This update discarded existing revisions and left the branch pointing at"
 389                         echo "a previous point in the repository history."
 390                         echo ""
 391                         echo " * -- * -- N ($newrev)"
 392                         echo "            \\"
 393                         echo "             O -- O -- O ($oldrev)"
 394                         echo ""
 395                         echo "The removed revisions are not necessarilly gone - if another reference"
 396                         echo "still refers to them they will stay in the repository."
 397                         rewind_only=1
 398                 else
 399                         echo "This update added new revisions after undoing existing revisions.  That is"
 400                         echo "to say, the old revision is not a strict subset of the new revision.  This"
 401                         echo "situation occurs when you --force push a change and generate a repository"
 402                         echo "containing something like this:"
 403                         echo ""
 404                         echo " * -- * -- B -- O -- O -- O ($oldrev)"
 405                         echo "            \\"
 406                         echo "             N -- N -- N ($newrev)"
 407                         echo ""
 408                         echo "When this happens we assume that you've already had alert emails for all"
 409                         echo "of the O revisions, and so we here report only the revisions in the N"
 410                         echo "branch from the common base, B."
 411                 fi
 412         fi
 413
 414         echo ""
 415         if [ -z "$rewind_only" ]; then
 416                 echo "Those revisions listed above that are new to this repository have"
 417                 echo "not appeared on any other notification email; so we list those"
 418                 echo "revisions in full, below."
 419
 420                 echo ""
 421                 echo $LOGBEGIN
 422                 show_new_revisions
 423
 424                 # XXX: Need a way of detecting whether git rev-list actually
 425                 # outputted anything, so that we can issue a "no new
 426                 # revisions added by this update" message
 427
 428                 echo $LOGEND
 429         else
 430                 echo "No new revisions were added by this update."
 431         fi
 432
 433         # The diffstat is shown from the old revision to the new revision.
 434         # This is to show the truth of what happened in this change.
 435         # There's no point showing the stat from the base to the new
 436         # revision because the base is effectively a random revision at this
 437         # point - the user will be interested in what this revision changed
 438         # - including the undoing of previous revisions in the case of
 439         # non-fast forward updates.
 440         echo ""
 441         echo "Summary of changes:"
 442         git diff-tree --stat --summary --find-copies-harder $oldrev..$newrev
 443 }
 444
 445 #
 446 # Called for the deletion of a branch
 447 #
 448 generate_delete_branch_email()
 449 {
 450         echo "       was  $oldrev"
 451         echo ""
 452         echo $LOGEND
 453         git show -s --pretty=oneline $oldrev
 454         echo $LOGEND
 455 }
 456
 457 # --------------- Annotated tags
 458
 459 #
 460 # Called for the creation of an annotated tag
 461 #
 462 generate_create_atag_email()
 463 {
 464         echo "        at  $newrev ($newrev_type)"
 465
 466         generate_atag_email
 467 }
 468
 469 #
 470 # Called for the update of an annotated tag (this is probably a rare event
 471 # and may not even be allowed)
 472 #
 473 generate_update_atag_email()
 474 {
 475         echo "        to  $newrev ($newrev_type)"
 476         echo "      from  $oldrev (which is now obsolete)"
 477
 478         generate_atag_email
 479 }
 480
 481 #
 482 # Called when an annotated tag is created or changed
 483 #
 484 generate_atag_email()
 485 {
 486         # Use git for-each-ref to pull out the individual fields from the
 487         # tag
 488         eval $(git for-each-ref --shell --format='
 489         tagobject=%(*objectname)
 490         tagtype=%(*objecttype)
 491         tagger=%(taggername)
 492         tagged=%(taggerdate)' $refname
 493         )
 494
 495         echo "   tagging  $tagobject ($tagtype)"
 496         case "$tagtype" in
 497         commit)
 498
 499                 # If the tagged object is a commit, then we assume this is a
 500                 # release, and so we calculate which tag this tag is
 501                 # replacing
 502                 prevtag=$(git describe --abbrev=0 $newrev^ 2>/dev/null)
 503
 504                 if [ -n "$prevtag" ]; then
 505                         echo "  replaces  $prevtag"
 506                 fi
 507                 ;;
 508         *)
 509                 echo "    length  $(git cat-file -s $tagobject) bytes"
 510                 ;;
 511         esac
 512         echo " tagged by  $tagger"
 513         echo "        on  $tagged"
 514
 515         echo ""
 516         echo $LOGBEGIN
 517
 518         # Show the content of the tag message; this might contain a change
 519         # log or release notes so is worth displaying.
 520         git cat-file tag $newrev | sed -e '1,/^$/d'
 521
 522         echo ""
 523         case "$tagtype" in
 524         commit)
 525                 # Only commit tags make sense to have rev-list operations
 526                 # performed on them
 527                 if [ -n "$prevtag" ]; then
 528                         # Show changes since the previous release
 529                         git rev-list --pretty=short "$prevtag..$newrev" | git shortlog
 530                 else
 531                         # No previous tag, show all the changes since time
 532                         # began
 533                         git rev-list --pretty=short $newrev | git shortlog
 534                 fi
 535                 ;;
 536         *)
 537                 # XXX: Is there anything useful we can do for non-commit
 538                 # objects?
 539                 ;;
 540         esac
 541
 542         echo $LOGEND
 543 }
 544
 545 #
 546 # Called for the deletion of an annotated tag
 547 #
 548 generate_delete_atag_email()
 549 {
 550         echo "       was  $oldrev"
 551         echo ""
 552         echo $LOGEND
 553         git show -s --pretty=oneline $oldrev
 554         echo $LOGEND
 555 }
 556
 557 # --------------- General references
 558
 559 #
 560 # Called when any other type of reference is created (most likely a
 561 # non-annotated tag)
 562 #
 563 generate_create_general_email()
 564 {
 565         echo "        at  $newrev ($newrev_type)"
 566
 567         generate_general_email
 568 }
 569
 570 #
 571 # Called when any other type of reference is updated (most likely a
 572 # non-annotated tag)
 573 #
 574 generate_update_general_email()
 575 {
 576         echo "        to  $newrev ($newrev_type)"
 577         echo "      from  $oldrev"
 578
 579         generate_general_email
 580 }
 581
 582 #
 583 # Called for creation or update of any other type of reference
 584 #
 585 generate_general_email()
 586 {
 587         # Unannotated tags are more about marking a point than releasing a
 588         # version; therefore we don't do the shortlog summary that we do for
 589         # annotated tags above - we simply show that the point has been
 590         # marked, and print the log message for the marked point for
 591         # reference purposes
 592         #
 593         # Note this section also catches any other reference type (although
 594         # there aren't any) and deals with them in the same way.
 595
 596         echo ""
 597         if [ "$newrev_type" = "commit" ]; then
 598                 echo $LOGBEGIN
 599                 git show --no-color --root -s --pretty=medium $newrev
 600                 echo $LOGEND
 601         else
 602                 # What can we do here?  The tag marks an object that is not
 603                 # a commit, so there is no log for us to display.  It's
 604                 # probably not wise to output git cat-file as it could be a
 605                 # binary blob.  We'll just say how big it is
 606                 echo "$newrev is a $newrev_type, and is $(git cat-file -s $newrev) bytes long."
 607         fi
 608 }
 609
 610 #
 611 # Called for the deletion of any other type of reference
 612 #
 613 generate_delete_general_email()
 614 {
 615         echo "       was  $oldrev"
 616         echo ""
 617         echo $LOGEND
 618         git show -s --pretty=oneline $oldrev
 619         echo $LOGEND
 620 }
 621
 622
 623 # --------------- Miscellaneous utilities
 624
 625 #
 626 # Show new revisions as the user would like to see them in the email.
 627 #
 628 show_new_revisions()
 629 {
 630         # This shows all log entries that are not already covered by
 631         # another ref - i.e. commits that are now accessible from this
 632         # ref that were previously not accessible
 633         # (see generate_update_branch_email for the explanation of this
 634         # command)
 635
 636         # Revision range passed to rev-list differs for new vs. updated
 637         # branches.
 638         if [ "$change_type" = create ]
 639         then
 640                 # Show all revisions exclusive to this (new) branch.
 641                 revspec=$newrev
 642         else
 643                 # Branch update; show revisions not part of $oldrev.
 644                 revspec=$oldrev..$newrev
 645         fi
 646
 647         other_branches=$(git for-each-ref --format='%(refname)' refs/heads/ |
 648             grep -F -v $refname)
 649         git rev-parse --not $other_branches |
 650 #       if [ -z "$custom_showrev" ]
 651 #       then
 652 #               git rev-list --pretty --stdin $revspec
 653 #       else
 654                 git rev-list --stdin $revspec |
 655                 while read onerev
 656                 do
 657                         if [ -n "$custom_showrev" ]; then
 658                                 eval $(printf "$custom_showrev" $onerev)
 659                         else
 660                                 echo "$cfg_gitweburl/$projectname/commit/$onerev"
 661                                 echo
 662                                 git show -C $onerev
 663                                 echo
 664                         fi
 665                 done
 666 #       fi
 667 }
 668
 669
 670 size_limit()
 671 {
 672         size=0
 673         while IFS= read line; do
 674                 size=$((size+${#line}))
 675                 if [ $size -gt $1 ]; then
 676                         echo "...e-mail trimmed, has been too large."
 677                         break
 678                 fi
 679                 echo "$line"
 680         done
 681 }
 682
 683
 684 send_mail()
 685 {
 686         if ! IFS= read header; then
 687                 exit 1
 688         fi
 689         if [ -z "$header" ]; then
 690                 exit 0
 691         fi
 692         { echo "$header"; cat; } |
 693         if [ -n "$envelopesender" ]; then
 694                 /usr/sbin/sendmail -t -f "$envelopesender"
 695         else
 696                 /usr/sbin/sendmail -t
 697         fi
 698 }
 699
 700 # ---------------------------- main()
 701
 702 # --- Constants
 703 LOGBEGIN="- Log -----------------------------------------------------------------"
 704 LOGEND="-----------------------------------------------------------------------"
 705
 706 # --- Config
 707 . @basedir@/shlib.sh
 708
 709 # Set GIT_DIR either from the working directory, or from the environment
 710 # variable.
 711 GIT_DIR=$(git rev-parse --git-dir 2>/dev/null)
 712 if [ -z "$GIT_DIR" ]; then
 713         echo >&2 "fatal: post-receive: GIT_DIR not set"
 714         exit 1
 715 fi
 716
 717 projectdesc=$(sed -ne '1p' "$GIT_DIR/description")
 718 # Check if the description is unchanged from it's default, and shorten it to
 719 # a more manageable length if it is
 720 if expr "$projectdesc" : "Unnamed repository.*$" >/dev/null
 721 then
 722         projectdesc="UNNAMED PROJECT"
 723 fi
 724
 725 projectname="$4"
 726 if [ -n "$projectname" ]; then
 727         projectname="$projectname.git"
 728         projectboth="$projectname (\"$projectdesc\")"
 729         projectowner="$(config_get owner)"
 730 else
 731         projectname="$projectdesc"
 732         projectboth="$projectdesc"
 733 fi
 734
 735 emailsender="$5"
 736 emailextraheader="$6"
 737
 738 recipients=$(git config hooks.mailinglist)
 739 announcerecipients=$(git config hooks.announcelist)
 740 envelopesender=$(git config hooks.envelopesender)
 741 emailprefix=$(git config hooks.emailprefix || echo "[$cfg_name] ")
 742 custom_showrev=$(git config hooks.showrev)
 743
 744 # --- Main loop
 745 # Allow dual mode: run from the command line just like the update hook, or
 746 # if no arguments are given then run as a hook script
 747 if [ -n "$1" -a -n "$2" -a -n "$3" ]; then
 748         # Output to the terminal in command line mode - if someone wanted to
 749         # resend an email; they could redirect the output to sendmail
 750         # themselves
 751         generate_email $2 $3 $1 | size_limit $((256*1024)) | send_mail
 752 else
 753         while read oldrev newrev refname
 754         do
 755                 generate_email $oldrev $newrev $refname | size_limit $((256*1024)) | send_mail
 756         done
 757 fi