vref: code
- compile: VREF/ is special, like NAME/ - update hook: use a new "check_vrefs" sub to - spawn helpers for each vref in @allowed_refs - for each vref returned by the helper, call check_ref
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51
contrib/VREF/gl-VREF-COUNT
Executable file
51
contrib/VREF/gl-VREF-COUNT
Executable file
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@ -0,0 +1,51 @@
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#!/bin/bash
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# gitolite VREF to count number of changed/new files in a push
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# see gitolite docs for what the first 7 arguments mean
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# inputs:
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# arg-8 is a number
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# arg-9 is optional, and can be "NEWFILES"
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# outputs (STDOUT)
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# arg-7 if the number of changed (or new, if arg-9 supplied) files is > arg-8
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# otherwise nothing
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# exit status:
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# always 0
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die() { echo "$@" >&2; exit 1; }
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[ -z "$8" ] && die "not meant to be run manually"
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newsha=$3
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oldtree=$4
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newtree=$5
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refex=$7
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max=$8
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nf=
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[ "$9" = "NEWFILES" ] && nf='--diff-filter=A'
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# NO_SIGNOFF implies NEWFILES
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[ "$9" = "NO_SIGNOFF" ] && nf='--diff-filter=A'
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# count files against all the other commits in the system not just $oldsha
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# (why? consider what is $oldtree when you create a new branch, or what is
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# $oldsha when you update an old feature branch from master and then push it
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count=`git log --name-only $nf --format=%n $newtree --not --all | grep . | sort -u | wc -l`
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[[ $count -gt $max ]] && {
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# count has been exceeded. If $9 was NO_SIGNOFF there's still a chance
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# for redemption -- if the top commit has a proper signed-off by line
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[ "$9" = "NO_SIGNOFF" ] && {
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author_email=$(git log --format=%ae -1 $newsha)
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git cat-file -p $newsha |
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egrep -i >/dev/null "^ *$count +new +files +signed-off by: *$author_email *$" && exit 0
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echo $refex top commit message should include the text \'$count new files signed-off by: $author_email\'
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exit 0
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}
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echo -n $refex "(too many "
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[ -n "$nf" ] && echo -n "new " || echo -n "changed "
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echo "files in this push)"
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}
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exit 0
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@ -75,32 +75,12 @@ push @allowed_refs, @ { $repos{'@all'} {$ENV{GL_USER}} || [] };
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push @allowed_refs, @ { $repos{$ENV{GL_REPO}}{'@all'} || [] };
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push @allowed_refs, @ { $repos{'@all'} {'@all'} || [] };
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# prepare the list of refs to be checked
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# first check the main ref (this is a *real* ref, like refs/heads/master, and
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# is what we print in the log)
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my $log_refex = check_ref(\@allowed_refs, $ENV{GL_REPO}, $ref, $att_acc);
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# previously, we just checked $ref -- the ref being updated, which is passed
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# to us by git (see man githooks). Now we also have to treat each NAME being
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# updated as a potential "ref" and check that, if NAME-based restrictions have
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# been specified
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my @refs = ($ref); # the first ref to check is the real one
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# because making it work screws up efficiency like no tomorrow...
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if (exists $repos{$ENV{GL_REPO}}{NAME_LIMITS}) {
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# this is special to git -- the hash of an empty tree
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my $empty='4b825dc642cb6eb9a060e54bf8d69288fbee4904';
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# well they're not really "trees" but $empty is indeed the empty tree so
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# we can just pretend $oldsha/$newsha are also trees, and anyway 'git
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# diff' only wants trees
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my $oldtree = $oldsha eq '0' x 40 ? $empty : $oldsha;
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my $newtree = $newsha eq '0' x 40 ? $empty : $newsha;
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push @refs, map { chomp; s/^/NAME\//; $_; } `git diff --name-only $oldtree $newtree`;
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}
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# we potentially have many "refs" to check. The one we print in the log is
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# the *first* one (which is a *real* ref, like refs/heads/master), while all
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# the rest (if they exist) are like NAME/something. So we do the first one
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# separately to capture it, then run the rest (if any)
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my $log_refex = check_ref(\@allowed_refs, $ENV{GL_REPO}, (shift @refs), $att_acc);
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check_ref (\@allowed_refs, $ENV{GL_REPO}, $_ , $att_acc) for @refs;
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# then we check all virtual refs
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check_vrefs(\@allowed_refs, $ENV{GL_REPO}, $att_acc);
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# if we returned at all, all the checks succeeded. Check secondary hooks now
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$UPDATE_CHAINS_TO ||= 'hooks/update.secondary';
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@ -111,3 +91,50 @@ log_it("", "$att_acc\t" . substr($oldsha, 0, 14) . "\t" . substr($newsha, 0, 14
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"\t$reported_repo\t$ref\t$log_refex");
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exit 0;
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# ----------------------------------------------------------------------
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sub check_vrefs {
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my ( $ar_ref, $repo, $aa ) = @_;
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# these will be passed on as args 1, 2, 4 to check_ref. Arg-3 will be
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# the new ref being checked.
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# this sub uses $ref, $oldsha, and $newsha globals; they're pretty much
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# 'constant' once you enter an update hook anyway
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my $empty = '4b825dc642cb6eb9a060e54bf8d69288fbee4904'; # this is special to git -- the hash of an empty tree
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my $oldtree = $oldsha eq '0' x 40 ? $empty : $oldsha;
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my $newtree = $newsha eq '0' x 40 ? $empty : $newsha;
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my @first6 = ( $ref, $oldsha, $newsha, $oldtree, $newtree, $aa );
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# first, handle the VREF thats's been in "core" forever...
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if ( $repos{ $ENV{GL_REPO} }{NAME_LIMITS} ) {
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for my $ref ( map { chomp; s/^/NAME\//; $_; } `git diff --name-only $oldtree $newtree` ) {
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check_ref( $ar_ref, $repo, $ref, $aa );
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}
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}
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my %vref_seen;
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for my $vr ( grep { m(^VREF/) } map { $_->[1] } sort { $a->[0] <=> $b->[0] } @{$ar_ref} ) {
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next if $vref_seen{$vr}++;
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# find code pertaining to $vr and run it; see docs for details
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my ( $dummy, $pgm, @args ) = split '/', $vr;
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$pgm = "$ENV{GL_BINDIR}/gl-VREF-$pgm";
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-x $pgm or die "can't find helper program for $vr\n";
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open( my $fh, "-|", $pgm, @first6, $vr, @args ) or die "can't spawn helper program for $vr: $!\n";
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while (<$fh>) {
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my ( $vref, $deny_message ) = split( ' ', $_, 2 );
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my $ret = check_ref( $ar_ref, $repo, $vref, $aa, 1 );
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die "$ret\n" . ( $deny_message || '' ) if $ret =~ /DENIED/ and $ret !~ /by fallthru/;
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# I could change check_ref to take one more argument, say
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# 'fallthru_is_pass', but I want to keep these changes as
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# isolated as possible for now
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}
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close($fh) or die $!
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? "Error closing sort pipe: $!"
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: "Exit status $? from VREF helper program for $vr";
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}
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}
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@ -175,9 +175,9 @@ sub parse_conf_line
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@refs = qw(refs/.*) unless @refs;
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# deprecation warning
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map { print STDERR "WARNING: old syntax 'PATH/' found; please use new syntax 'NAME/'\n" if s(^PATH/)(NAME/) } @refs;
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# fully qualify refs that dont start with "refs/" or "NAME/";
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# fully qualify refs that dont start with "refs/" or "NAME/" or "VREF/";
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# prefix them with "refs/heads/"
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@refs = map { m(^(refs|NAME)/) or s(^)(refs/heads/); $_ } @refs;
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@refs = map { m(^(refs|NAME|VREF)/) or s(^)(refs/heads/); $_ } @refs;
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@refs = map { s(/USER/)(/\$gl_user/); $_ } @refs;
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# expand the user list, unless it is just "@all"
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