-# Copyright (C) 2019 all contributors <meta@public-inbox.org>
+# Copyright (C) all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# show any VCS object, similar to "git show"
-# FIXME: we only show blobs for now
#
# This can use a "solver" to reconstruct blobs based on git
# patches (with abbreviated OIDs in the header). However, the
package PublicInbox::ViewVCS;
use strict;
-use warnings;
-use Encode qw(find_encoding);
+use v5.10.1;
+use File::Temp 0.19 (); # newdir
use PublicInbox::SolverGit;
-use PublicInbox::WwwStream;
+use PublicInbox::GitAsyncCat;
+use PublicInbox::WwwStream qw(html_oneshot);
use PublicInbox::Linkify;
-use PublicInbox::Hval qw(ascii_html to_filename);
-my %QP_MAP = ( A => 'oid_a', B => 'oid_b', a => 'path_a', b => 'path_b' );
-my $max_size = 1024 * 1024; # TODO: configurable
-my $enc_utf8 = find_encoding('UTF-8');
+use PublicInbox::Tmpfile;
+use PublicInbox::ViewDiff qw(flush_diff uri_escape_path);
+use PublicInbox::View;
+use PublicInbox::Eml;
+use Text::Wrap qw(wrap);
+use PublicInbox::Hval qw(ascii_html to_filename prurl);
+use POSIX qw(strftime);
+my $hl = eval {
+ require PublicInbox::HlMod;
+ PublicInbox::HlMod->new;
+};
-sub html_page ($$$) {
- my ($ctx, $code, $strref) = @_;
- $ctx->{-upfx} = '../../'; # from "/$INBOX/$OID/s/"
- PublicInbox::WwwStream->response($ctx, $code, sub {
- my ($nr, undef) = @_;
- $nr == 1 ? $$strref : undef;
- });
+my %QP_MAP = ( A => 'oid_a', a => 'path_a', b => 'path_b' );
+our $MAX_SIZE = 1024 * 1024; # TODO: configurable
+my $BIN_DETECT = 8000; # same as git
+my $SHOW_FMT = '--pretty=format:'.join('%n', '%P', '%p', '%H', '%T', '%s', '%f',
+ '%an <%ae> %ai', '%cn <%ce> %ci', '%b%x00');
+
+my %GIT_MODE = (
+ '100644' => ' ', # blob
+ '100755' => 'x', # executable blob
+ '040000' => 'd', # tree
+ '120000' => 'l', # symlink
+ '160000' => 'g', # commit (gitlink)
+);
+
+sub html_page ($$;@) {
+ my ($ctx, $code) = @_[0, 1];
+ my $wcb = delete $ctx->{-wcb};
+ $ctx->{-upfx} //= '../../'; # from "/$INBOX/$OID/s/"
+ my $res = html_oneshot($ctx, $code, @_[2..$#_]);
+ $wcb ? $wcb->($res) : $res;
}
-sub show ($$;$) {
- my ($ctx, $oid_b, $fn) = @_;
- my $ibx = $ctx->{-inbox};
- my $inboxes = [ $ibx ];
- my $solver = PublicInbox::SolverGit->new($ibx->{-repo_objs}, $inboxes);
- my $qp = $ctx->{qp};
- my $hints = {};
- while (my ($from, $to) = each %QP_MAP) {
- defined(my $v = $qp->{$from}) or next;
- $hints->{$to} = $v;
+sub dbg_log ($) {
+ my ($ctx) = @_;
+ my $log = delete $ctx->{lh} // die 'BUG: already captured debug log';
+ if (!seek($log, 0, 0)) {
+ warn "seek(log): $!";
+ return '<pre>debug log seek error</pre>';
+ }
+ $log = do { local $/; <$log> } // do {
+ if (!eof($log)) {
+ warn "readline(log): $!";
+ return '<pre>debug log read error</pre>';
+ }
+ '';
+ };
+ return '' if $log eq '';
+ $ctx->{-linkify} //= PublicInbox::Linkify->new;
+ "<hr><pre>debug log:\n\n".
+ $ctx->{-linkify}->to_html($log).'</pre>';
+}
+
+sub stream_blob_parse_hdr { # {parse_hdr} for Qspawn
+ my ($r, $bref, $ctx) = @_;
+ my ($git, $oid, $type, $size, $di) = @{$ctx->{-res}};
+ my @cl = ('Content-Length', $size);
+ if (!defined $r) { # sysread error
+ html_page($ctx, 500, dbg_log($ctx));
+ } elsif (index($$bref, "\0") >= 0) {
+ [200, [qw(Content-Type application/octet-stream), @cl] ];
+ } else {
+ my $n = length($$bref);
+ if ($n >= $BIN_DETECT || $n == $size) {
+ return [200, [ 'Content-Type',
+ 'text/plain; charset=UTF-8', @cl ] ];
+ }
+ if ($r == 0) {
+ my $log = dbg_log($ctx);
+ warn "premature EOF on $oid $log";
+ return html_page($ctx, 500, $log);
+ }
+ undef; # bref keeps growing
+ }
+}
+
+sub stream_large_blob ($$) {
+ my ($ctx, $res) = @_;
+ $ctx->{-res} = $res;
+ my ($git, $oid, $type, $size, $di) = @$res;
+ my $cmd = ['git', "--git-dir=$git->{git_dir}", 'cat-file', $type, $oid];
+ my $qsp = PublicInbox::Qspawn->new($cmd);
+ my $env = $ctx->{env};
+ $env->{'qspawn.wcb'} = $ctx->{-wcb};
+ $qsp->psgi_return($env, undef, \&stream_blob_parse_hdr, $ctx);
+}
+
+sub show_other_result ($$) { # future-proofing
+ my ($bref, $ctx) = @_;
+ if (my $qsp_err = delete $ctx->{-qsp_err}) {
+ return html_page($ctx, 500, dbg_log($ctx) .
+ "git show error:$qsp_err");
+ }
+ my $l = PublicInbox::Linkify->new;
+ utf8::decode($$bref);
+ html_page($ctx, 200, '<pre>', $l->to_html($$bref), '</pre><hr>',
+ dbg_log($ctx));
+}
+
+sub cmt_title { # git->cat_async callback
+ my ($bref, $oid, $type, $size, $ctx) = @_;
+ utf8::decode($$bref);
+ my $title = $$bref =~ /\r?\n\r?\n([^\r\n]+)\r?\n?/ ? $1 : '';
+ push(@{$ctx->{-cmt_pt}} , ascii_html($title)) == @{$ctx->{-cmt_P}} and
+ cmt_finalize($ctx);
+}
+
+sub do_cat_async {
+ my ($ctx, $cb, @req) = @_;
+ # favor git(1) over Gcf2 (libgit2) for SHA-256 support
+ $ctx->{git}->cat_async($_, $cb, $ctx) for @req;
+ if ($ctx->{env}->{'pi-httpd.async'}) {
+ PublicInbox::GitAsyncCat::watch_cat($ctx->{git});
+ } else { # synchronous, generic PSGI
+ $ctx->{git}->cat_async_wait;
+ }
+}
+
+sub do_check_async {
+ my ($ctx, $cb, @req) = @_;
+ if ($ctx->{env}->{'pi-httpd.async'}) {
+ async_check($ctx, $_, $cb, $ctx) for @req;
+ } else { # synchronous, generic PSGI
+ $ctx->{git}->check_async($_, $cb, $ctx) for @req;
+ $ctx->{git}->check_async_wait;
+ }
+}
+
+sub show_commit_start { # ->psgi_qx callback
+ my ($bref, $ctx) = @_;
+ if (my $qsp_err = delete $ctx->{-qsp_err}) {
+ return html_page($ctx, 500, dbg_log($ctx) .
+ "git show/patch-id error:$qsp_err");
+ }
+ my $patchid = (split(/ /, $$bref))[0]; # ignore commit
+ $ctx->{-q_value_html} = "patchid:$patchid" if defined $patchid;
+ open my $fh, '<:utf8', "$ctx->{-tmp}/h" or
+ die "open $ctx->{-tmp}/h: $!";
+ chop(my $buf = do { local $/ = "\0"; <$fh> });
+ chomp $buf;
+ my ($P, $p);
+ ($P, $p, @{$ctx->{cmt_info}}) = split(/\n/, $buf, 9);
+ return cmt_finalize($ctx) if !$P;
+ @{$ctx->{-cmt_P}} = split(/ /, $P);
+ @{$ctx->{-cmt_p}} = split(/ /, $p); # abbreviated
+ do_cat_async($ctx, \&cmt_title, @{$ctx->{-cmt_P}});
+}
+
+sub ibx_url_for {
+ my ($ctx) = @_;
+ $ctx->{ibx} and return; # fall back to $upfx
+ $ctx->{git} or die 'BUG: no {git}';
+ if (my $ALL = $ctx->{www}->{pi_cfg}->ALL) {
+ if (defined(my $u = $ALL->base_url($ctx->{env}))) {
+ return wantarray ? ($u) : $u;
+ }
+ }
+ my @ret;
+ if (my $ibx_names = $ctx->{git}->{ibx_names}) {
+ my $by_name = $ctx->{www}->{pi_cfg}->{-by_name};
+ for my $name (@$ibx_names) {
+ my $ibx = $by_name->{$name} // do {
+ warn "inbox `$name' no longer exists\n";
+ next;
+ };
+ $ibx->isrch // next;
+ my $u = defined($ibx->{url}) ?
+ prurl($ctx->{env}, $ibx->{url}) : $name;
+ $u .= '/' if substr($u, -1) ne '/';
+ push @ret, $u;
+ }
+ }
+ wantarray ? (@ret) : $ret[0];
+}
+
+sub cmt_finalize {
+ my ($ctx) = @_;
+ $ctx->{-linkify} //= PublicInbox::Linkify->new;
+ my $upfx = $ctx->{-upfx} = '../../'; # from "/$INBOX/$OID/s/"
+ my ($H, $T, $s, $f, $au, $co, $bdy) = @{delete $ctx->{cmt_info}};
+ # try to keep author and committer dates lined up
+ my $x = length($au) - length($co);
+ if ($x > 0) {
+ $x = ' ' x $x;
+ $co =~ s/>/>$x/;
+ } elsif ($x < 0) {
+ $x = ' ' x (-$x);
+ $au =~ s/>/>$x/;
+ }
+ $_ = ascii_html($_) for ($au, $co);
+ my $ibx_url = ibx_url_for($ctx) // $upfx;
+ $au =~ s!(> +)([0-9]{4,}-\S+ \S+)!
+ my ($gt, $t) = ($1, $2);
+ $t =~ tr/ :-//d;
+ qq($gt<a
+href="$ibx_url?t=$t"
+title="list contemporary emails">$2</a>)
+ !e;
+
+ $ctx->{-title_html} = $s = $ctx->{-linkify}->to_html($s);
+ my ($P, $p, $pt) = delete @$ctx{qw(-cmt_P -cmt_p -cmt_pt)};
+ $_ = qq(<a href="$upfx$_/s/">).shift(@$p).'</a> '.shift(@$pt) for @$P;
+ if (@$P == 1) {
+ $x = qq{ (<a
+href="$f.patch">patch</a>)\n <a href=#parent>parent</a> $P->[0]};
+ } elsif (@$P > 1) {
+ $x = qq(\n <a href=#parents>parents</a> $P->[0]\n);
+ shift @$P;
+ $x .= qq( $_\n) for @$P;
+ chop $x;
+ } else {
+ $x = ' (<a href=#root_commit>root commit</a>)';
+ }
+ PublicInbox::WwwStream::html_init($ctx);
+ my $zfh = $ctx->zfh;
+ print $zfh <<EOM;
+<pre> <a href=#commit>commit</a> $H$x
+ <a href=#tree>tree</a> <a href="$upfx$T/s/?b=">$T</a>
+ author $au
+committer $co
+
+<b>$s</b>
+EOM
+ print $zfh "\n", $ctx->{-linkify}->to_html($bdy) if length($bdy);
+ $bdy = '';
+ open my $fh, '<:utf8', "$ctx->{-tmp}/p" or
+ die "open $ctx->{-tmp}/p: $!";
+ if (-s $fh > $MAX_SIZE) {
+ print $zfh "---\n patch is too large to show\n";
+ } else { # prepare flush_diff:
+ read($fh, $x, -s _);
+ $ctx->{-apfx} = $ctx->{-spfx} = $upfx;
+ $x =~ s/\r?\n/\n/gs;
+ $ctx->{-anchors} = {} if $x =~ /^diff --git /sm;
+ flush_diff($ctx, \$x); # undefs $x
+ # TODO: should there be another textarea which attempts to
+ # search for the exact email which was applied to make this
+ # commit?
+ if (my $qry = delete $ctx->{-qry}) {
+ my $q = '';
+ for (@{$qry->{dfpost}}, @{$qry->{dfpre}}) {
+ # keep blobs as short as reasonable, emails
+ # are going to be older than what's in git
+ substr($_, 7, 64, '');
+ $q .= "dfblob:$_ ";
+ }
+ chop $q; # no trailing SP
+ local $Text::Wrap::columns = PublicInbox::View::COLS;
+ local $Text::Wrap::huge = 'overflow';
+ $q = wrap('', '', $q);
+ my $rows = ($q =~ tr/\n/\n/) + 1;
+ $q = ascii_html($q);
+ my $ibx_url = ibx_url_for($ctx);
+ my $alt;
+ if (defined $ibx_url) {
+ $alt = " `$ibx_url'";
+ $ibx_url =~ m!://! or
+ substr($ibx_url, 0, 0, '../../../');
+ $ibx_url = ascii_html($ibx_url);
+ } else {
+ $ibx_url = $upfx;
+ $alt = '';
+ }
+ print $zfh <<EOM;
+<hr><form action="$ibx_url"
+id=related><pre>find related emails, including ancestors/descendants/conflicts
+<textarea name=q cols=${\PublicInbox::View::COLS} rows=$rows>$q</textarea>
+<input type=submit value="search$alt"
+/>\t(<a href="${ibx_url}_/text/help/">help</a>)</pre></form>
+EOM
+ }
+ }
+ chop($x = <<EOM);
+<hr><pre>glossary
+--------
+<dfn
+id=commit>Commit</dfn> objects reference one tree, and zero or more parents.
+
+Single <dfn
+id=parent>parent</dfn> commits can typically generate a patch in
+unified diff format via `git format-patch'.
+
+Multiple <dfn id=parents>parents</dfn> means the commit is a merge.
+
+<dfn id=root_commit>Root commits</dfn> have no ancestor. Note that it is
+possible to have multiple root commits when merging independent histories.
+
+Every commit references one top-level <dfn id=tree>tree</dfn> object.</pre>
+EOM
+ delete($ctx->{-wcb})->($ctx->html_done($x));
+}
+
+sub stream_patch_parse_hdr { # {parse_hdr} for Qspawn
+ my ($r, $bref, $ctx) = @_;
+ if (!defined $r) { # sysread error
+ html_page($ctx, 500, dbg_log($ctx));
+ } elsif (index($$bref, "\n\n") >= 0) {
+ my $eml = bless { hdr => $bref }, 'PublicInbox::Eml';
+ my $fn = to_filename($eml->header('Subject') // '');
+ $fn = substr($fn // 'PATCH-no-subject', 6); # drop "PATCH-"
+ return [ 200, [ 'Content-Type', 'text/plain; charset=UTF-8',
+ 'Content-Disposition',
+ qq(inline; filename=$fn.patch) ] ];
+ } elsif ($r == 0) {
+ my $log = dbg_log($ctx);
+ warn "premature EOF on $ctx->{patch_oid} $log";
+ return html_page($ctx, 500, $log);
+ } else {
+ undef; # bref keeps growing until "\n\n"
}
+}
- open my $log, '+>', undef or die "open: $!";
- my $res = $solver->solve($log, $oid_b, $hints);
+sub show_patch ($$) {
+ my ($ctx, $res) = @_;
+ my ($git, $oid) = @$res;
+ my @cmd = ('git', "--git-dir=$git->{git_dir}",
+ qw(format-patch -1 --stdout -C),
+ "--signature=git format-patch -1 --stdout -C $oid", $oid);
+ my $qsp = PublicInbox::Qspawn->new(\@cmd);
+ $ctx->{env}->{'qspawn.wcb'} = $ctx->{-wcb};
+ $ctx->{patch_oid} = $oid;
+ $qsp->psgi_return($ctx->{env}, undef, \&stream_patch_parse_hdr, $ctx);
+}
- seek($log, 0, 0) or die "seek: $!";
- $log = do { local $/; <$log> };
+sub show_commit ($$) {
+ my ($ctx, $res) = @_;
+ return show_patch($ctx, $res) if ($ctx->{fn} // '') =~ /\.patch\z/;
+ my ($git, $oid) = @$res;
+ # patch-id needs two passes, and we use the initial show to ensure
+ # a patch embedded inside the commit message body doesn't get fed
+ # to patch-id:
+ my $cmd = [ '/bin/sh', '-c',
+ "git show --encoding=UTF-8 '$SHOW_FMT'".
+ " -z --no-notes --no-patch $oid >h && ".
+ 'git show --encoding=UTF-8 --pretty=format:%n -M'.
+ " --stat -p $oid >p && ".
+ "git patch-id --stable <p" ];
+ my $e = { GIT_DIR => $git->{git_dir} };
+ my $qsp = PublicInbox::Qspawn->new($cmd, $e, { -C => "$ctx->{-tmp}" });
+ $qsp->{qsp_err} = \($ctx->{-qsp_err} = '');
+ $ctx->{env}->{'qspawn.wcb'} = $ctx->{-wcb};
+ $ctx->{git} = $git;
+ $qsp->psgi_qx($ctx->{env}, undef, \&show_commit_start, $ctx);
+}
+sub show_other ($$) { # just in case...
+ my ($ctx, $res) = @_;
+ my ($git, $oid, $type, $size) = @$res;
+ $size > $MAX_SIZE and return html_page($ctx, 200,
+ ascii_html($type)." $oid is too big to show\n". dbg_log($ctx));
+ my $cmd = ['git', "--git-dir=$git->{git_dir}",
+ qw(show --encoding=UTF-8 --no-color --no-abbrev), $oid ];
+ my $qsp = PublicInbox::Qspawn->new($cmd);
+ $qsp->{qsp_err} = \($ctx->{-qsp_err} = '');
+ $qsp->psgi_qx($ctx->{env}, undef, \&show_other_result, $ctx);
+}
+
+sub show_tree_result ($$) {
+ my ($bref, $ctx) = @_;
+ if (my $qsp_err = delete $ctx->{-qsp_err}) {
+ return html_page($ctx, 500, dbg_log($ctx) .
+ "git ls-tree -z error:$qsp_err");
+ }
+ my @ent = split(/\0/, $$bref);
+ my $qp = delete $ctx->{qp};
+ my $l = $ctx->{-linkify} //= PublicInbox::Linkify->new;
+ my $pfx = $ctx->{-path} // $qp->{b}; # {-path} is from RepoTree
+ $$bref = "<pre><a href=#tree>tree</a> $ctx->{tree_oid}";
+ # $REPO/tree/$path already sets {-upfx}
+ my $upfx = $ctx->{-upfx} //= '../../';
+ if (defined $pfx) {
+ $pfx =~ s!/+\z!!s;
+ if (my $t = $ctx->{-obj}) {
+ my $t = ascii_html($t);
+ $$bref .= <<EOM
+\n\$ git ls-tree -l $t # shows similar output on the CLI
+EOM
+ } elsif ($pfx eq '') {
+ $$bref .= " (root)\n";
+ } else {
+ my $x = ascii_html($pfx);
+ $pfx .= '/';
+ $$bref .= qq( <a href=#path>path</a>: $x</a>\n);
+ }
+ } else {
+ $pfx = '';
+ $$bref .= qq[ (<a href=#path>path</a> unknown)\n];
+ }
+ my ($x, $m, $t, $oid, $sz, $f, $n, $gitlink);
+ $$bref .= "\n size name";
+ for (@ent) {
+ ($x, $f) = split(/\t/, $_, 2);
+ undef $_;
+ ($m, $t, $oid, $sz) = split(/ +/, $x, 4);
+ $m = $GIT_MODE{$m} // '?';
+ utf8::decode($f);
+ $n = ascii_html($f);
+ if ($m eq 'g') { # gitlink submodule commit
+ $$bref .= "\ng\t\t$n @ <a\nhref=#g>commit</a>$oid";
+ $gitlink = 1;
+ next;
+ }
+ my $q = 'b='.ascii_html(uri_escape_path($pfx.$f));
+ if ($m eq 'd') { $n .= '/' }
+ elsif ($m eq 'x') { $n = "<b>$n</b>" }
+ elsif ($m eq 'l') { $n = "<i>$n</i>" }
+ $$bref .= qq(\n$m\t$sz\t<a\nhref="$upfx$oid/s/?$q">$n</a>);
+ }
+ $$bref .= dbg_log($ctx);
+ $$bref .= <<EOM;
+<hr><pre>glossary
+--------
+<dfn
+id=tree>Tree</dfn> objects belong to commits or other tree objects. Trees may
+reference blobs, sub-trees, or (rarely) commits of submodules.
+
+<dfn
+id=path>Path</dfn> names are stored in tree objects, but trees do not know
+their own path name. A tree's path name comes from their parent tree,
+or it is the root tree referenced by a commit object. Thus, this web UI
+relies on the `b=' URI parameter as a hint to display the path name.
+EOM
+
+ $$bref .= <<EOM if $gitlink;
+
+<dfn title="submodule commit"
+id=g>Commit</dfn> objects may be stored in trees to reference submodules.</pre>
+EOM
+ chop $$bref;
+ html_page($ctx, 200, $$bref);
+}
+
+sub show_tree ($$) { # also used by RepoTree
+ my ($ctx, $res) = @_;
+ my ($git, $oid, undef, $size) = @$res;
+ $size > $MAX_SIZE and return html_page($ctx, 200,
+ "tree $oid is too big to show\n". dbg_log($ctx));
+ my $cmd = [ 'git', "--git-dir=$git->{git_dir}",
+ qw(ls-tree -z -l --no-abbrev), $oid ];
+ my $qsp = PublicInbox::Qspawn->new($cmd);
+ $ctx->{tree_oid} = $oid;
+ $qsp->{qsp_err} = \($ctx->{-qsp_err} = '');
+ $qsp->psgi_qx($ctx->{env}, undef, \&show_tree_result, $ctx);
+}
+
+# returns seconds offset from git TZ offset
+sub tz_adj ($) {
+ my ($tz) = @_; # e.g "-0700"
+ $tz = int($tz);
+ my $mm = $tz < 0 ? -$tz : $tz;
+ $mm = int($mm / 100) * 60 + ($mm % 100);
+ $mm = $tz < 0 ? -$mm : $mm;
+ ($mm * 60);
+}
+
+sub show_tag_result { # git->cat_async callback
+ my ($bref, $oid, $type, $size, $ctx) = @_;
+ utf8::decode($$bref);
my $l = PublicInbox::Linkify->new;
- $l->linkify_1($log);
- $log = '<pre>debug log:</pre><hr /><pre>' .
- $l->linkify_2(ascii_html($log)) . '</pre>';
+ $$bref = $l->to_html($$bref);
+ $$bref =~ s!^object ([a-f0-9]+)!object <a
+href=../../$1/s/>$1</a>!;
+
+ $$bref =~ s/^(tagger .*> )([0-9]+) ([\-+]?[0-9]+)/$1.strftime(
+ '%Y-%m-%d %H:%M:%S', gmtime($2 + tz_adj($3)))." $3"/sme;
+ # TODO: download link
+ html_page($ctx, 200, '<pre>', $$bref, '</pre>', dbg_log($ctx));
+}
+
+sub show_tag ($$) {
+ my ($ctx, $res) = @_;
+ my ($git, $oid) = @$res;
+ $ctx->{git} = $git;
+ do_cat_async($ctx, \&show_tag_result, $oid);
+}
- $res or return html_page($ctx, 404, \$log);
+# user_cb for SolverGit, called as: user_cb->($result_or_error, $uarg)
+sub solve_result {
+ my ($res, $ctx) = @_;
+ my $hints = delete $ctx->{hints};
+ $res or return html_page($ctx, 404, 'Not found', dbg_log($ctx));
+ ref($res) eq 'ARRAY' or
+ return html_page($ctx, 500, 'Internal error', dbg_log($ctx));
my ($git, $oid, $type, $size, $di) = @$res;
- if ($size > $max_size) {
- # TODO: stream the raw file if it's gigantic, at least
- $log = '<pre><b>Too big to show</b></pre>' . $log;
- return html_page($ctx, 500, \$log);
+ return show_commit($ctx, $res) if $type eq 'commit';
+ return show_tree($ctx, $res) if $type eq 'tree';
+ return show_tag($ctx, $res) if $type eq 'tag';
+ return show_other($ctx, $res) if $type ne 'blob';
+ my $fn = $di->{path_b} // $hints->{path_b};
+ my $paths = $ctx->{-paths} //= do {
+ my $path = to_filename($fn // 'blob');
+ my $raw_more = qq[(<a\nhref="$path">raw</a>)];
+ my @def;
+
+ # XXX not sure if this is the correct wording
+ if (defined($fn)) {
+ $raw_more .= qq(
+name: ${\ascii_html($fn)} \t # note: path name is non-authoritative<a
+href="#pathdef" id=top>(*)</a>);
+ $def[0] = "<hr><pre\nid=pathdef>" .
+'(*) Git path names are given by the tree(s) the blob belongs to.
+ Blobs themselves have no identifier aside from the hash of its contents.'.
+qq(<a\nhref="#top">^</a></pre>);
+ }
+ [ $path, $raw_more, @def ];
+ };
+ $ctx->{-q_value_html} //= do {
+ my $s = defined($fn) ? 'dfn:'.ascii_html($fn).' ' : '';
+ $s.'dfpost:'.substr($oid, 0, 7);
+ };
+
+ if ($size > $MAX_SIZE) {
+ return stream_large_blob($ctx, $res) if defined $ctx->{fn};
+ return html_page($ctx, 200, <<EOM . dbg_log($ctx));
+<pre><b>Too big to show, download available</b>
+blob $oid $size bytes $paths->[1]</pre>
+EOM
}
+ bless $ctx, 'PublicInbox::WwwStream'; # for DESTROY
+ $ctx->{git} = $git;
+ do_cat_async($ctx, \&show_blob, $oid);
+}
- my $blob = $git->cat_file($oid);
- if (!$blob) { # WTF?
+sub show_blob { # git->cat_async callback
+ my ($blob, $oid, $type, $size, $ctx) = @_;
+ if (!$blob) {
my $e = "Failed to retrieve generated blob ($oid)";
- $ctx->{env}->{'psgi.errors'}->print("$e ($git->{git_dir})\n");
- $log = "<pre><b>$e</b></pre>" . $log;
- return html_page($ctx, 500, \$log);
+ warn "$e ($ctx->{git}->{git_dir}) type=$type";
+ return html_page($ctx, 500, "<pre><b>$e</b></pre>".dbg_log($ctx))
}
- my $binary = index($$blob, "\0") >= 0;
- if ($fn) {
+ my $bin = index(substr($$blob, 0, $BIN_DETECT), "\0") >= 0;
+ if (defined $ctx->{fn}) {
my $h = [ 'Content-Length', $size, 'Content-Type' ];
- push(@$h, ($binary ? 'application/octet-stream' : 'text/plain'));
- return [ 200, $h, [ $$blob ]];
+ push(@$h, ($bin ? 'application/octet-stream' : 'text/plain'));
+ return delete($ctx->{-wcb})->([200, $h, [ $$blob ]]);
}
- my $path = to_filename($di->{path_b} || $hints->{path_b} || 'blob');
- my $raw_link = "(<a\nhref=$path>raw</a>)";
- if ($binary) {
- $log = "<pre>$oid $type $size bytes (binary)" .
- " $raw_link</pre>" . $log;
- return html_page($ctx, 200, \$log);
- }
+ my ($path, $raw_more, @def) = @{delete $ctx->{-paths}};
+ $bin and return html_page($ctx, 200,
+ "<pre>blob $oid $size bytes (binary)" .
+ " $raw_more</pre>".dbg_log($ctx));
- $$blob = $enc_utf8->decode($$blob);
- my $nl = ($$blob =~ tr/\n/\n/);
+ # TODO: detect + convert to ensure validity
+ utf8::decode($$blob);
+ my $nl = ($$blob =~ s/\r?\n/\n/sg);
my $pad = length($nl);
+ ($ctx->{-linkify} //= PublicInbox::Linkify->new)->linkify_1($$blob);
+ my $ok = $hl->do_hl($blob, $path) if $hl;
+ if ($ok) {
+ $blob = $ok;
+ } else {
+ $$blob = ascii_html($$blob);
+ }
+
# using some of the same CSS class names and ids as cgit
- $log = "<pre>$oid $type $size bytes $raw_link</pre>" .
+ my $x = "<pre>blob $oid $size bytes $raw_more</pre>" .
"<hr /><table\nclass=blob>".
- "<tr><td\nclass=linenumbers><pre>" . join('', map {
- sprintf("<a id=n$_ href=#n$_>% ${pad}u</a>\n", $_)
- } (1..$nl)) . '</pre></td>' .
- '<td><pre> </pre></td>'. # pad for non-CSS users
- "<td\nclass=lines><pre><code>" . ascii_html($$blob) .
- '</code></pre></td></tr></table>' . $log;
-
- html_page($ctx, 200, \$log);
+ "<tr><td\nclass=linenumbers><pre>";
+ # scratchpad in this loop is faster here than `printf $zfh':
+ $x .= sprintf("<a id=n$_ href=#n$_>% ${pad}u</a>\n", $_) for (1..$nl);
+ $x .= '</pre></td><td><pre> </pre></td>'. # pad for non-CSS users
+ "<td\nclass=lines><pre\nstyle='white-space:pre'><code>";
+ html_page($ctx, 200, $x, $ctx->{-linkify}->linkify_2($$blob),
+ '</code></pre></td></tr></table>'.dbg_log($ctx), @def);
+}
+
+# GET /$INBOX/$GIT_OBJECT_ID/s/
+# GET /$INBOX/$GIT_OBJECT_ID/s/$FILENAME
+sub show ($$;$) {
+ my ($ctx, $oid_b, $fn) = @_;
+ my $qp = $ctx->{qp};
+ my $hints = $ctx->{hints} = {};
+ while (my ($from, $to) = each %QP_MAP) {
+ defined(my $v = $qp->{$from}) or next;
+ $hints->{$to} = $v if $v ne '';
+ }
+ $ctx->{fn} = $fn;
+ $ctx->{-tmp} = File::Temp->newdir("solver.$oid_b-XXXX", TMPDIR => 1);
+ unless ($ctx->{lh}) {
+ open $ctx->{lh}, '+>>', "$ctx->{-tmp}/solve.log" or
+ die "open: $!";
+ }
+ my $solver = PublicInbox::SolverGit->new($ctx->{ibx},
+ \&solve_result, $ctx);
+ $solver->{gits} //= [ $ctx->{git} ];
+ $solver->{tmp} = $ctx->{-tmp}; # share tmpdir
+ # PSGI server will call this immediately and give us a callback (-wcb)
+ sub {
+ $ctx->{-wcb} = $_[0]; # HTTP write callback
+ $solver->solve($ctx->{env}, $ctx->{lh}, $oid_b, $hints);
+ };
}
1;