Re: [PATCH] get_maintainer: Add commit author information to --rolestats

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On 11/15/2013 05:56 AM, Joe Perches wrote:
> get_maintainer currently uses "Signed-off-by" style lines
> to find interested parties to send patches to when the
> MAINTAINERS file does not have a specific section entry
> with a matching file pattern.
> 
> Add statistics for commit authors and lines added and
> deleted to the information provided by --rolestats.
> 
> These statistics are also emitted whenever --rolestats
> and --git are selected even when there is a specified
> maintainer.
> 
> This can have the effect of expanding the number of people
> that are shown as possible "maintainers" of a particular
> file because "authors", "added_lines", and "removed_lines"
> are also used as criterion for the --max-maintainers option
> separate from the "commit_signers".
> 
> The first "--git-max-maintainers" values of each criterion
> are emitted.  Any "ties" are not shown.
> 
> For example: (forcedeth does not have a named maintainer)
> 
> Old output:
> 
> $ ./scripts/get_maintainer.pl -f drivers/net/ethernet/nvidia/forcedeth.c
> "David S. Miller" <davem@xxxxxxxxxxxxx> (commit_signer:8/10=80%)
> Jiri Pirko <jiri@xxxxxxxxxxx> (commit_signer:2/10=20%)
> Patrick McHardy <kaber@xxxxxxxxx> (commit_signer:2/10=20%)
> Larry Finger <Larry.Finger@xxxxxxxxxxxx> (commit_signer:1/10=10%)
> Peter Zijlstra <peterz@xxxxxxxxxxxxx> (commit_signer:1/10=10%)
> netdev@xxxxxxxxxxxxxxx (open list:NETWORKING DRIVERS)
> linux-kernel@xxxxxxxxxxxxxxx (open list)
> 
> New output:
> 
> $ ./scripts/get_maintainer.pl -f drivers/net/ethernet/nvidia/forcedeth.c 
> "David S. Miller" <davem@xxxxxxxxxxxxx> (commit_signer:8/10=80%)
> Jiri Pirko <jiri@xxxxxxxxxxx> (commit_signer:2/10=20%,authored:2/10=20%,removed_lines:3/33=9%)
> Patrick McHardy <kaber@xxxxxxxxx> (commit_signer:2/10=20%,authored:2/10=20%,added_lines:12/95=13%,removed_lines:10/33=30%)
> Larry Finger <Larry.Finger@xxxxxxxxxxxx> (commit_signer:1/10=10%,authored:1/10=10%,added_lines:35/95=37%)
> Peter Zijlstra <peterz@xxxxxxxxxxxxx> (commit_signer:1/10=10%)
> "Peter H�we" <PeterHuewe@xxxxxx> (authored:1/10=10%,removed_lines:15/33=45%)
> Joe Perches <joe@xxxxxxxxxxx> (authored:1/10=10%)
> Neil Horman <nhorman@xxxxxxxxxxxxx> (added_lines:40/95=42%)
> Bill Pemberton <wfp5p@xxxxxxxxxxxx> (removed_lines:3/33=9%)
> netdev@xxxxxxxxxxxxxxx (open list:NETWORKING DRIVERS)
> linux-kernel@xxxxxxxxxxxxxxx (open list)
> 
> Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
> 

Thank you very much!

At least for me, it is OK (I test 4 patches, include 2 patches which may
cause issue with original "./scripts/get_maintainers.pl", but not with
current one).


BTW:

I have to say sorry for you (also for many other members), sometimes
what I said is not quite suitable (although it seems still 'polite').

I should stick to the fact, but need continue improving communication
experience (e.g. how to say and say what), and always clear the goal:
"make contributions to outside with lowest negative effect".

I also often make mistakes (some of them are common sense), firstly, I
should face them directly with standard way (it is basic requirement to
me), and then should try to reduce these things.


Welcome any members suggestions and completions.

Thanks.

> ---
> 
> Andrew, please replace the get_maintainer "try this"
> patch with this.
> 
> It also fixes a defect in that proposal you may have
> picked up separately.  That fix isn't yet in -next.
> 
>  scripts/get_maintainer.pl | 91 +++++++++++++++++++++++++++++++++++++++++++----
>  1 file changed, 85 insertions(+), 6 deletions(-)
> 
> diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
> index 5e4fb14..9c3986f 100755
> --- a/scripts/get_maintainer.pl
> +++ b/scripts/get_maintainer.pl
> @@ -98,6 +98,7 @@ my %VCS_cmds_git = (
>      "available" => '(which("git") ne "") && (-d ".git")',
>      "find_signers_cmd" =>
>  	"git log --no-color --follow --since=\$email_git_since " .
> +	    '--numstat --no-merges ' .
>  	    '--format="GitCommit: %H%n' .
>  		      'GitAuthor: %an <%ae>%n' .
>  		      'GitDate: %aD%n' .
> @@ -106,6 +107,7 @@ my %VCS_cmds_git = (
>  	    " -- \$file",
>      "find_commit_signers_cmd" =>
>  	"git log --no-color " .
> +	    '--numstat ' .
>  	    '--format="GitCommit: %H%n' .
>  		      'GitAuthor: %an <%ae>%n' .
>  		      'GitDate: %aD%n' .
> @@ -114,6 +116,7 @@ my %VCS_cmds_git = (
>  	    " -1 \$commit",
>      "find_commit_author_cmd" =>
>  	"git log --no-color " .
> +	    '--numstat ' .
>  	    '--format="GitCommit: %H%n' .
>  		      'GitAuthor: %an <%ae>%n' .
>  		      'GitDate: %aD%n' .
> @@ -125,6 +128,7 @@ my %VCS_cmds_git = (
>      "blame_commit_pattern" => "^([0-9a-f]+) ",
>      "author_pattern" => "^GitAuthor: (.*)",
>      "subject_pattern" => "^GitSubject: (.*)",
> +    "stat_pattern" => "^(\\d+)\\t(\\d+)\\t\$file\$",
>  );
>  
>  my %VCS_cmds_hg = (
> @@ -152,6 +156,7 @@ my %VCS_cmds_hg = (
>      "blame_commit_pattern" => "^([ 0-9a-f]+):",
>      "author_pattern" => "^HgAuthor: (.*)",
>      "subject_pattern" => "^HgSubject: (.*)",
> +    "stat_pattern" => "^(\\d+)\t(\\d+)\t\$file\$",
>  );
>  
>  my $conf = which_conf(".get_maintainer.conf");
> @@ -1269,20 +1274,30 @@ sub extract_formatted_signatures {
>  }
>  
>  sub vcs_find_signers {
> -    my ($cmd) = @_;
> +    my ($cmd, $file) = @_;
>      my $commits;
>      my @lines = ();
>      my @signatures = ();
> +    my @authors = ();
> +    my @stats = ();
>  
>      @lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
>  
>      my $pattern = $VCS_cmds{"commit_pattern"};
> +    my $author_pattern = $VCS_cmds{"author_pattern"};
> +    my $stat_pattern = $VCS_cmds{"stat_pattern"};
> +
> +    $stat_pattern =~ s/(\$\w+)/$1/eeg;		#interpolate $stat_pattern
>  
>      $commits = grep(/$pattern/, @lines);	# of commits
>  
> +    @authors = grep(/$author_pattern/, @lines);
>      @signatures = grep(/^[ \t]*${signature_pattern}.*\@.*$/, @lines);
> +    @stats = grep(/$stat_pattern/, @lines);
>  
> -    return (0, @signatures) if !@signatures;
> +#    print("stats: <@stats>\n");
> +
> +    return (0, \@signatures, \@authors, \@stats) if !@signatures;
>  
>      save_commits_by_author(@lines) if ($interactive);
>      save_commits_by_signer(@lines) if ($interactive);
> @@ -1291,9 +1306,10 @@ sub vcs_find_signers {
>  	@signatures = grep(!/${penguin_chiefs}/i, @signatures);
>      }
>  
> +    my ($author_ref, $authors_ref) = extract_formatted_signatures(@authors);
>      my ($types_ref, $signers_ref) = extract_formatted_signatures(@signatures);
>  
> -    return ($commits, @$signers_ref);
> +    return ($commits, $signers_ref, $authors_ref, \@stats);
>  }
>  
>  sub vcs_find_author {
> @@ -1849,7 +1865,12 @@ sub vcs_assign {
>  sub vcs_file_signoffs {
>      my ($file) = @_;
>  
> +    my $authors_ref;
> +    my $signers_ref;
> +    my $stats_ref;
> +    my @authors = ();
>      my @signers = ();
> +    my @stats = ();
>      my $commits;
>  
>      $vcs_used = vcs_exists();
> @@ -1858,13 +1879,59 @@ sub vcs_file_signoffs {
>      my $cmd = $VCS_cmds{"find_signers_cmd"};
>      $cmd =~ s/(\$\w+)/$1/eeg;		# interpolate $cmd
>  
> -    ($commits, @signers) = vcs_find_signers($cmd);
> +    ($commits, $signers_ref, $authors_ref, $stats_ref) = vcs_find_signers($cmd, $file);
> +
> +    @signers = @{$signers_ref} if defined $signers_ref;
> +    @authors = @{$authors_ref} if defined $authors_ref;
> +    @stats = @{$stats_ref} if defined $stats_ref;
> +
> +#    print("commits: <$commits>\nsigners:<@signers>\nauthors: <@authors>\nstats: <@stats>\n");
>  
>      foreach my $signer (@signers) {
>  	$signer = deduplicate_email($signer);
>      }
>  
>      vcs_assign("commit_signer", $commits, @signers);
> +    vcs_assign("authored", $commits, @authors);
> +    if ($#authors == $#stats) {
> +	my $stat_pattern = $VCS_cmds{"stat_pattern"};
> +	$stat_pattern =~ s/(\$\w+)/$1/eeg;	#interpolate $stat_pattern
> +
> +	my $added = 0;
> +	my $deleted = 0;
> +	for (my $i = 0; $i <= $#stats; $i++) {
> +	    if ($stats[$i] =~ /$stat_pattern/) {
> +		$added += $1;
> +		$deleted += $2;
> +	    }
> +	}
> +	my @tmp_authors = uniq(@authors);
> +	foreach my $author (@tmp_authors) {
> +	    $author = deduplicate_email($author);
> +	}
> +	@tmp_authors = uniq(@tmp_authors);
> +	my @list_added = ();
> +	my @list_deleted = ();
> +	foreach my $author (@tmp_authors) {
> +	    my $auth_added = 0;
> +	    my $auth_deleted = 0;
> +	    for (my $i = 0; $i <= $#stats; $i++) {
> +		if ($author eq deduplicate_email($authors[$i]) &&
> +		    $stats[$i] =~ /$stat_pattern/) {
> +		    $auth_added += $1;
> +		    $auth_deleted += $2;
> +		}
> +	    }
> +	    for (my $i = 0; $i < $auth_added; $i++) {
> +		push(@list_added, $author);
> +	    }
> +	    for (my $i = 0; $i < $auth_deleted; $i++) {
> +		push(@list_deleted, $author);
> +	    }
> +	}
> +	vcs_assign("added_lines", $added, @list_added);
> +	vcs_assign("removed_lines", $deleted, @list_deleted);
> +    }
>  }
>  
>  sub vcs_file_blame {
> @@ -1887,6 +1954,10 @@ sub vcs_file_blame {
>      if ($email_git_blame_signatures) {
>  	if (vcs_is_hg()) {
>  	    my $commit_count;
> +	    my $commit_authors_ref;
> +	    my $commit_signers_ref;
> +	    my $stats_ref;
> +	    my @commit_authors = ();
>  	    my @commit_signers = ();
>  	    my $commit = join(" -r ", @commits);
>  	    my $cmd;
> @@ -1894,19 +1965,27 @@ sub vcs_file_blame {
>  	    $cmd = $VCS_cmds{"find_commit_signers_cmd"};
>  	    $cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
>  
> -	    ($commit_count, @commit_signers) = vcs_find_signers($cmd);
> +	    ($commit_count, $commit_signers_ref, $commit_authors_ref, $stats_ref) = vcs_find_signers($cmd, $file);
> +	    @commit_authors = @{$commit_authors_ref} if defined $commit_authors_ref;
> +	    @commit_signers = @{$commit_signers_ref} if defined $commit_signers_ref;
>  
>  	    push(@signers, @commit_signers);
>  	} else {
>  	    foreach my $commit (@commits) {
>  		my $commit_count;
> +		my $commit_authors_ref;
> +		my $commit_signers_ref;
> +		my $stats_ref;
> +		my @commit_authors = ();
>  		my @commit_signers = ();
>  		my $cmd;
>  
>  		$cmd = $VCS_cmds{"find_commit_signers_cmd"};
>  		$cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
>  
> -		($commit_count, @commit_signers) = vcs_find_signers($cmd);
> +		($commit_count, $commit_signers_ref, $commit_authors_ref, $stats_ref) = vcs_find_signers($cmd, $file);
> +		@commit_authors = @{$commit_authors_ref} if defined $commit_authors_ref;
> +		@commit_signers = @{$commit_signers_ref} if defined $commit_signers_ref;
>  
>  		push(@signers, @commit_signers);
>  	    }
> 
> 
> 
> 


-- 
Chen Gang

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