From 3c2f5886c78454276a045c1312eca652c11d98d6 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Sat, 2 Sep 2006 22:57:42 -0700 Subject: [PATCH 1/3] Revert "Convert git-annotate to use Git.pm" This reverts commit 7fb39d5f58efd05e982fe148630edc97ded753b6. --- git-annotate.perl | 183 ++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 151 insertions(+), 32 deletions(-) diff --git a/git-annotate.perl b/git-annotate.perl index 742a51c501..215ed26f3a 100755 --- a/git-annotate.perl +++ b/git-annotate.perl @@ -11,7 +11,6 @@ use strict; use Getopt::Long; use POSIX qw(strftime gmtime); use File::Basename qw(basename dirname); -use Git; sub usage() { print STDERR "Usage: ${\basename $0} [-s] [-S revs-file] file [ revision ] @@ -30,7 +29,7 @@ sub usage() { exit(1); } -our ($help, $longrev, $rename, $rawtime, $starting_rev, $rev_file, $repo) = (0, 0, 1); +our ($help, $longrev, $rename, $rawtime, $starting_rev, $rev_file) = (0, 0, 1); my $rc = GetOptions( "long|l" => \$longrev, "time|t" => \$rawtime, @@ -53,8 +52,6 @@ my @stack = ( }, ); -$repo = Git->repository(); - our @filelines = (); if (defined $starting_rev) { @@ -105,11 +102,15 @@ while (my $bound = pop @stack) { push @revqueue, $head; init_claim( defined $starting_rev ? $head : 'dirty'); unless (defined $starting_rev) { - my %ident; - @ident{'author', 'author_email', 'author_date'} = $repo->ident('author'); - my $diff = $repo->command_output_pipe('diff', '-R', 'HEAD', '--', $filename); - _git_diff_parse($diff, [$head], "dirty", %ident); - $repo->command_close_pipe($diff); + my $diff = open_pipe("git","diff","HEAD", "--",$filename) + or die "Failed to call git diff to check for dirty state: $!"; + + _git_diff_parse($diff, [$head], "dirty", ( + 'author' => gitvar_name("GIT_AUTHOR_IDENT"), + 'author_date' => sprintf("%s +0000",time()), + ) + ); + close($diff); } handle_rev(); @@ -179,7 +180,8 @@ sub git_rev_list { open($revlist, '<' . $rev_file) or die "Failed to open $rev_file : $!"; } else { - $revlist = $repo->command_output_pipe('rev-list', '--parents', '--remove-empty', $rev, '--', $file); + $revlist = open_pipe("git-rev-list","--parents","--remove-empty",$rev,"--",$file) + or die "Failed to exec git-rev-list: $!"; } my @revs; @@ -188,7 +190,7 @@ sub git_rev_list { my ($rev, @parents) = split /\s+/, $line; push @revs, [ $rev, @parents ]; } - $repo->command_close_pipe($revlist); + close($revlist); printf("0 revs found for rev %s (%s)\n", $rev, $file) if (@revs == 0); return @revs; @@ -197,7 +199,8 @@ sub git_rev_list { sub find_parent_renames { my ($rev, $file) = @_; - my $patch = $repo->command_output_pipe('diff-tree', '-M50', '-r', '--name-status', '-z', $rev); + my $patch = open_pipe("git-diff-tree", "-M50", "-r","--name-status", "-z","$rev") + or die "Failed to exec git-diff: $!"; local $/ = "\0"; my %bound; @@ -223,7 +226,7 @@ sub find_parent_renames { } } } - $repo->command_close_pipe($patch); + close($patch); return \%bound; } @@ -232,9 +235,14 @@ sub find_parent_renames { sub git_find_parent { my ($rev, $filename) = @_; - my $parentline = $repo->command_oneline('rev-list', '--remove-empty', - '--parents', '--max-count=1', $rev, '--', $filename); - my ($revfound, $parent) = split m/\s+/, $parentline; + my $revparent = open_pipe("git-rev-list","--remove-empty", "--parents","--max-count=1","$rev","--",$filename) + or die "Failed to open git-rev-list to find a single parent: $!"; + + my $parentline = <$revparent>; + chomp $parentline; + my ($revfound,$parent) = split m/\s+/, $parentline; + + close($revparent); return $parent; } @@ -242,16 +250,29 @@ sub git_find_parent { sub git_find_all_parents { my ($rev) = @_; - my $parentline = $repo->command_oneline("rev-list","--remove-empty", "--parents","--max-count=1","$rev"); + my $revparent = open_pipe("git-rev-list","--remove-empty", "--parents","--max-count=1","$rev") + or die "Failed to open git-rev-list to find a single parent: $!"; + + my $parentline = <$revparent>; + chomp $parentline; my ($origrev, @parents) = split m/\s+/, $parentline; + close($revparent); + return @parents; } sub git_merge_base { my ($rev1, $rev2) = @_; - my $base = $repo->command_oneline("merge-base", $rev1, $rev2); + my $mb = open_pipe("git-merge-base", $rev1, $rev2) + or die "Failed to open git-merge-base: $!"; + + my $base = <$mb>; + chomp $base; + + close($mb); + return $base; } @@ -316,7 +337,7 @@ sub git_diff_parse { my ($parents, $rev, %revinfo) = @_; my @pseudo_parents; - my @command = ("diff-tree"); + my @command = ("git-diff-tree"); my $revision_spec; if (scalar @$parents == 1) { @@ -345,11 +366,12 @@ sub git_diff_parse { push @command, "-p", "-M", $revision_spec, "--", @filenames; - my $diff = $repo->command_output_pipe(@command); + my $diff = open_pipe( @command ) + or die "Failed to call git-diff for annotation: $!"; _git_diff_parse($diff, \@pseudo_parents, $rev, %revinfo); - $repo->command_close_pipe($diff); + close($diff); } sub _git_diff_parse { @@ -525,25 +547,36 @@ sub git_cat_file { my $blob = git_ls_tree($rev, $filename); die "Failed to find a blob for $filename in rev $rev\n" if !defined $blob; - my @lines = split(/\n/, $repo->get_object('blob', $blob)); - pop @lines unless $lines[$#lines]; # Trailing newline + my $catfile = open_pipe("git","cat-file", "blob", $blob) + or die "Failed to git-cat-file blob $blob (rev $rev, file $filename): " . $!; + + my @lines; + while(<$catfile>) { + chomp; + push @lines, $_; + } + close($catfile); + return @lines; } sub git_ls_tree { my ($rev, $filename) = @_; - my $lstree = $repo->command_output_pipe('ls-tree', $rev, $filename); + my $lstree = open_pipe("git","ls-tree",$rev,$filename) + or die "Failed to call git ls-tree: $!"; + my ($mode, $type, $blob, $tfilename); while(<$lstree>) { chomp; ($mode, $type, $blob, $tfilename) = split(/\s+/, $_, 4); last if ($tfilename eq $filename); } - $repo->command_close_pipe($lstree); + close($lstree); return $blob if ($tfilename eq $filename); die "git-ls-tree failed to find blob for $filename"; + } @@ -559,17 +592,25 @@ sub claim_line { sub git_commit_info { my ($rev) = @_; - my $commit = $repo->get_object('commit', $rev); + my $commit = open_pipe("git-cat-file", "commit", $rev) + or die "Failed to call git-cat-file: $!"; my %info; - while ($commit =~ /(.*?)\n/g) { - my $line = $1; - if ($line =~ s/^author //) { - @info{'author', 'author_email', 'author_date'} = $repo->ident($line); - } elsif ($line =~ s/^committer//) { - @info{'committer', 'committer_email', 'committer_date'} = $repo->ident($line); + while(<$commit>) { + chomp; + last if (length $_ == 0); + + if (m/^author (.*) <(.*)> (.*)$/) { + $info{'author'} = $1; + $info{'author_email'} = $2; + $info{'author_date'} = $3; + } elsif (m/^committer (.*) <(.*)> (.*)$/) { + $info{'committer'} = $1; + $info{'committer_email'} = $2; + $info{'committer_date'} = $3; } } + close($commit); return %info; } @@ -587,3 +628,81 @@ sub format_date { my $t = $timestamp + $minutes * 60; return strftime("%Y-%m-%d %H:%M:%S " . $timezone, gmtime($t)); } + +# Copied from git-send-email.perl - We need a Git.pm module.. +sub gitvar { + my ($var) = @_; + my $fh; + my $pid = open($fh, '-|'); + die "$!" unless defined $pid; + if (!$pid) { + exec('git-var', $var) or die "$!"; + } + my ($val) = <$fh>; + close $fh or die "$!"; + chomp($val); + return $val; +} + +sub gitvar_name { + my ($name) = @_; + my $val = gitvar($name); + my @field = split(/\s+/, $val); + return join(' ', @field[0...(@field-4)]); +} + +sub open_pipe { + if ($^O eq '##INSERT_ACTIVESTATE_STRING_HERE##') { + return open_pipe_activestate(@_); + } else { + return open_pipe_normal(@_); + } +} + +sub open_pipe_activestate { + tie *fh, "Git::ActiveStatePipe", @_; + return *fh; +} + +sub open_pipe_normal { + my (@execlist) = @_; + + my $pid = open my $kid, "-|"; + defined $pid or die "Cannot fork: $!"; + + unless ($pid) { + exec @execlist; + die "Cannot exec @execlist: $!"; + } + + return $kid; +} + +package Git::ActiveStatePipe; +use strict; + +sub TIEHANDLE { + my ($class, @params) = @_; + my $cmdline = join " ", @params; + my @data = qx{$cmdline}; + bless { i => 0, data => \@data }, $class; +} + +sub READLINE { + my $self = shift; + if ($self->{i} >= scalar @{$self->{data}}) { + return undef; + } + return $self->{'data'}->[ $self->{i}++ ]; +} + +sub CLOSE { + my $self = shift; + delete $self->{data}; + delete $self->{i}; +} + +sub EOF { + my $self = shift; + return ($self->{i} >= scalar @{$self->{data}}); +} From 9594b326dcd6b879807fe6614f55ba50fa3d4551 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Sat, 2 Sep 2006 22:58:32 -0700 Subject: [PATCH 2/3] Revert "Git.pm: Introduce fast get_object() method" This reverts commit 3c479c37f8651d09e1d08b8d6ea9757164ee1235. --- perl/Git.pm | 18 ------------------ perl/Git.xs | 24 ------------------------ 2 files changed, 42 deletions(-) diff --git a/perl/Git.pm b/perl/Git.pm index f2467bddbe..9da15e9c8c 100644 --- a/perl/Git.pm +++ b/perl/Git.pm @@ -572,24 +572,6 @@ sub ident_person { } -=item get_object ( TYPE, SHA1 ) - -Return contents of the given object in a scalar string. If the object has -not been found, undef is returned; however, do not rely on this! Currently, -if you use multiple repositories at once, get_object() on one repository -_might_ return the object even though it exists only in another repository. -(But do not rely on this behaviour either.) - -The method must be called on a repository instance. - -Implementation of this method is very fast; no external command calls -are involved. That's why it is broken, too. ;-) - -=cut - -# Implemented in Git.xs. - - =item hash_object ( TYPE, FILENAME ) =item hash_object ( TYPE, FILEHANDLE ) diff --git a/perl/Git.xs b/perl/Git.xs index 226dd4f681..6ed26a29b8 100644 --- a/perl/Git.xs +++ b/perl/Git.xs @@ -111,30 +111,6 @@ CODE: free((char **) argv); } - -SV * -xs_get_object(type, id) - char *type; - char *id; -CODE: -{ - unsigned char sha1[20]; - unsigned long size; - void *buf; - - if (strlen(id) != 40 || get_sha1_hex(id, sha1) < 0) - XSRETURN_UNDEF; - - buf = read_sha1_file(sha1, type, &size); - if (!buf) - XSRETURN_UNDEF; - RETVAL = newSVpvn(buf, size); - free(buf); -} -OUTPUT: - RETVAL - - char * xs_hash_object_pipe(type, fd) char *type; From 81a71734bb73c2def1e86de88fb8de9fb6379cc5 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Sat, 2 Sep 2006 22:58:48 -0700 Subject: [PATCH 3/3] Revert "Make it possible to set up libgit directly (instead of from the environment)" This reverts commit 0270083ded143fd49841e3d3d0cac5eb06081d2a. --- cache.h | 3 --- commit.c | 23 ++++------------------- environment.c | 45 ++++++--------------------------------------- perl/Git.pm | 11 +++++------ perl/Git.xs | 16 +--------------- sha1_file.c | 30 ++++++------------------------ sha1_name.c | 10 ++-------- 7 files changed, 24 insertions(+), 114 deletions(-) diff --git a/cache.h b/cache.h index 2b8fafbd63..af7740258d 100644 --- a/cache.h +++ b/cache.h @@ -117,9 +117,6 @@ extern unsigned int active_nr, active_alloc, active_cache_changed; extern struct cache_tree *active_cache_tree; extern int cache_errno; -extern void setup_git(char *new_git_dir, char *new_git_object_dir, - char *new_git_index_file, char *new_git_graft_file); - #define GIT_DIR_ENVIRONMENT "GIT_DIR" #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" diff --git a/commit.c b/commit.c index 4d5c0c2945..77f0ca175c 100644 --- a/commit.c +++ b/commit.c @@ -163,14 +163,6 @@ int register_commit_graft(struct commit_graft *graft, int ignore_dups) return 0; } -void free_commit_grafts(void) -{ - int pos = commit_graft_nr; - while (pos >= 0) - free(commit_graft[pos--]); - commit_graft_nr = 0; -} - struct commit_graft *read_graft_line(char *buf, int len) { /* The format is just "Commit Parent1 Parent2 ...\n" */ @@ -223,18 +215,11 @@ int read_graft_file(const char *graft_file) static void prepare_commit_graft(void) { static int commit_graft_prepared; - static char *last_graft_file; - char *graft_file = get_graft_file(); - - if (last_graft_file) { - if (!strcmp(graft_file, last_graft_file)) - return; - free_commit_grafts(); - } - if (last_graft_file) - free(last_graft_file); - last_graft_file = strdup(graft_file); + char *graft_file; + if (commit_graft_prepared) + return; + graft_file = get_graft_file(); read_graft_file(graft_file); commit_graft_prepared = 1; } diff --git a/environment.c b/environment.c index 1ce34118dd..87162b2572 100644 --- a/environment.c +++ b/environment.c @@ -25,61 +25,28 @@ int zlib_compression_level = Z_DEFAULT_COMPRESSION; int pager_in_use; int pager_use_color = 1; -static int dyn_git_object_dir, dyn_git_index_file, dyn_git_graft_file; static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file; - -void setup_git(char *new_git_dir, char *new_git_object_dir, - char *new_git_index_file, char *new_git_graft_file) +static void setup_git_env(void) { - git_dir = new_git_dir; + git_dir = getenv(GIT_DIR_ENVIRONMENT); if (!git_dir) git_dir = DEFAULT_GIT_DIR_ENVIRONMENT; - - if (dyn_git_object_dir) - free(git_object_dir); - git_object_dir = new_git_object_dir; + git_object_dir = getenv(DB_ENVIRONMENT); if (!git_object_dir) { git_object_dir = xmalloc(strlen(git_dir) + 9); sprintf(git_object_dir, "%s/objects", git_dir); - dyn_git_object_dir = 1; - } else { - dyn_git_object_dir = 0; } - - if (git_refs_dir) - free(git_refs_dir); git_refs_dir = xmalloc(strlen(git_dir) + 6); sprintf(git_refs_dir, "%s/refs", git_dir); - - if (dyn_git_index_file) - free(git_index_file); - git_index_file = new_git_index_file; + git_index_file = getenv(INDEX_ENVIRONMENT); if (!git_index_file) { git_index_file = xmalloc(strlen(git_dir) + 7); sprintf(git_index_file, "%s/index", git_dir); - dyn_git_index_file = 1; - } else { - dyn_git_index_file = 0; } - - if (dyn_git_graft_file) - free(git_graft_file); - git_graft_file = new_git_graft_file; - if (!git_graft_file) { + git_graft_file = getenv(GRAFT_ENVIRONMENT); + if (!git_graft_file) git_graft_file = strdup(git_path("info/grafts")); - dyn_git_graft_file = 1; - } else { - dyn_git_graft_file = 0; - } -} - -static void setup_git_env(void) -{ - setup_git(getenv(GIT_DIR_ENVIRONMENT), - getenv(DB_ENVIRONMENT), - getenv(INDEX_ENVIRONMENT), - getenv(GRAFT_ENVIRONMENT)); } char *get_git_dir(void) diff --git a/perl/Git.pm b/perl/Git.pm index 9da15e9c8c..9ce9fcdd3e 100644 --- a/perl/Git.pm +++ b/perl/Git.pm @@ -98,8 +98,6 @@ XSLoader::load('Git', $VERSION); } -my $instance_id = 0; - =head1 CONSTRUCTORS @@ -217,7 +215,7 @@ sub repository { delete $opts{Directory}; } - $self = { opts => \%opts, id => $instance_id++ }; + $self = { opts => \%opts }; bless $self, $class; } @@ -835,10 +833,11 @@ sub _call_gate { if (defined $self) { # XXX: We ignore the WorkingCopy! To properly support # that will require heavy changes in libgit. - # For now, when we will need to do it we could temporarily - # chdir() there and then chdir() back after the call is done. - xs__call_gate($self->{id}, $self->repo_path()); + # XXX: And we ignore everything else as well. libgit + # at least needs to be extended to let us specify + # the $GIT_DIR instead of looking it up in environment. + #xs_call_gate($self->{opts}->{Repository}); } # Having to call throw from the C code is a sure path to insanity. diff --git a/perl/Git.xs b/perl/Git.xs index 6ed26a29b8..2bbec4365f 100644 --- a/perl/Git.xs +++ b/perl/Git.xs @@ -52,21 +52,7 @@ BOOT: } -void -xs__call_gate(repoid, git_dir) - long repoid; - char *git_dir; -CODE: -{ - static long last_repoid; - if (repoid != last_repoid) { - setup_git(git_dir, - getenv(DB_ENVIRONMENT), - getenv(INDEX_ENVIRONMENT), - getenv(GRAFT_ENVIRONMENT)); - last_repoid = repoid; - } -} +# /* TODO: xs_call_gate(). See Git.pm. */ char * diff --git a/sha1_file.c b/sha1_file.c index ed52d71a1b..842a6f3ae8 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -126,22 +126,16 @@ static void fill_sha1_path(char *pathbuf, const unsigned char *sha1) char *sha1_file_name(const unsigned char *sha1) { static char *name, *base; - static const char *last_objdir; - const char *sha1_file_directory = get_object_directory(); - if (!last_objdir || strcmp(last_objdir, sha1_file_directory)) { + if (!base) { + const char *sha1_file_directory = get_object_directory(); int len = strlen(sha1_file_directory); - if (base) - free(base); base = xmalloc(len + 60); memcpy(base, sha1_file_directory, len); memset(base+len, 0, 60); base[len] = '/'; base[len+3] = '/'; name = base + len + 1; - if (last_objdir) - free((char *) last_objdir); - last_objdir = strdup(sha1_file_directory); } fill_sha1_path(name, sha1); return base; @@ -151,20 +145,14 @@ char *sha1_pack_name(const unsigned char *sha1) { static const char hex[] = "0123456789abcdef"; static char *name, *base, *buf; - static const char *last_objdir; - const char *sha1_file_directory = get_object_directory(); int i; - if (!last_objdir || strcmp(last_objdir, sha1_file_directory)) { + if (!base) { + const char *sha1_file_directory = get_object_directory(); int len = strlen(sha1_file_directory); - if (base) - free(base); base = xmalloc(len + 60); sprintf(base, "%s/pack/pack-1234567890123456789012345678901234567890.pack", sha1_file_directory); name = base + len + 11; - if (last_objdir) - free((char *) last_objdir); - last_objdir = strdup(sha1_file_directory); } buf = name; @@ -182,20 +170,14 @@ char *sha1_pack_index_name(const unsigned char *sha1) { static const char hex[] = "0123456789abcdef"; static char *name, *base, *buf; - static const char *last_objdir; - const char *sha1_file_directory = get_object_directory(); int i; - if (!last_objdir || strcmp(last_objdir, sha1_file_directory)) { + if (!base) { + const char *sha1_file_directory = get_object_directory(); int len = strlen(sha1_file_directory); - if (base) - free(base); base = xmalloc(len + 60); sprintf(base, "%s/pack/pack-1234567890123456789012345678901234567890.idx", sha1_file_directory); name = base + len + 11; - if (last_objdir) - free((char *) last_objdir); - last_objdir = strdup(sha1_file_directory); } buf = name; diff --git a/sha1_name.c b/sha1_name.c index ddabb045a2..c5a05faeb6 100644 --- a/sha1_name.c +++ b/sha1_name.c @@ -12,21 +12,15 @@ static int find_short_object_filename(int len, const char *name, unsigned char * char hex[40]; int found = 0; static struct alternate_object_database *fakeent; - static const char *last_objdir; - const char *objdir = get_object_directory(); - if (!last_objdir || strcmp(last_objdir, objdir)) { + if (!fakeent) { + const char *objdir = get_object_directory(); int objdir_len = strlen(objdir); int entlen = objdir_len + 43; - if (fakeent) - free(fakeent); fakeent = xmalloc(sizeof(*fakeent) + entlen); memcpy(fakeent->base, objdir, objdir_len); fakeent->name = fakeent->base + objdir_len + 1; fakeent->name[-1] = '/'; - if (last_objdir) - free((char *) last_objdir); - last_objdir = strdup(objdir); } fakeent->next = alt_odb_list;