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@ -30,6 +30,24 @@ See man (1) git-archimport for more details. |
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Add print in front of the shell commands invoked via backticks. |
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Add print in front of the shell commands invoked via backticks. |
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=head1 Devel Notes |
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There are several places where Arch and git terminology are intermixed |
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and potentially confused. |
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The notion of a "branch" in git is approximately equivalent to |
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a "archive/category--branch--version" in Arch. Also, it should be noted |
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that the "--branch" portion of "archive/category--branch--version" is really |
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optional in Arch although not many people (nor tools!) seem to know this. |
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This means that "archive/category--version" is also a valid "branch" |
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in git terms. |
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We always refer to Arch names by their fully qualified variant (which |
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means the "archive" name is prefixed. |
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For people unfamiliar with Arch, an "archive" is the term for "repository", |
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and can contain multiple, unrelated branches. |
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=cut |
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=cut |
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use strict; |
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use strict; |
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@ -52,14 +70,14 @@ $ENV{'TZ'}="UTC"; |
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my $git_dir = $ENV{"GIT_DIR"} || ".git"; |
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my $git_dir = $ENV{"GIT_DIR"} || ".git"; |
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$ENV{"GIT_DIR"} = $git_dir; |
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$ENV{"GIT_DIR"} = $git_dir; |
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my $ptag_dir = "$git_dir/archimport/tags"; |
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our($opt_h,$opt_v, $opt_T, |
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our($opt_h,$opt_v, $opt_T,$opt_t,$opt_o); |
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$opt_C,$opt_t); |
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sub usage() { |
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sub usage() { |
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print STDERR <<END; |
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print STDERR <<END; |
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Usage: ${\basename $0} # fetch/update GIT from Arch |
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Usage: ${\basename $0} # fetch/update GIT from Arch |
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[ -h ] [ -v ] [ -T ] [ -t tempdir ] |
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[ -o ] [ -h ] [ -v ] [ -T ] [ -t tempdir ] |
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repository/arch-branch [ repository/arch-branch] ... |
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repository/arch-branch [ repository/arch-branch] ... |
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END |
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END |
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exit(1); |
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exit(1); |
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@ -196,24 +214,67 @@ unless (-d $git_dir) { # initial import |
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|| die "can't opendir: $!"; |
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|| die "can't opendir: $!"; |
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while (my $file = readdir(DIR)) { |
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while (my $file = readdir(DIR)) { |
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# skip non-interesting-files |
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# skip non-interesting-files |
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next unless -f "$git_dir/archimport/tags/$file"; |
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next unless -f "$ptag_dir/$file"; |
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next if $file =~ m/--base-0$/; # don't care for base-0 |
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# convert first '--' to '/' from old git-archimport to use |
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# as an archivename/c--b--v private tag |
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if ($file !~ m!,!) { |
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my $oldfile = $file; |
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$file =~ s!--!,!; |
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print STDERR "converting old tag $oldfile to $file\n"; |
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rename("$ptag_dir/$oldfile", "$ptag_dir/$file") or die $!; |
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} |
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my $sha = ptag($file); |
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my $sha = ptag($file); |
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chomp $sha; |
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chomp $sha; |
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# reconvert the 3rd '--' sequence from the end |
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# into a slash |
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# $file = reverse $file; |
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# $file =~ s!^(.+?--.+?--.+?--.+?)--(.+)$!$1/$2!; |
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# $file = reverse $file; |
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$rptags{$sha} = $file; |
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$rptags{$sha} = $file; |
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} |
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} |
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closedir DIR; |
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closedir DIR; |
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} |
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} |
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# process patchsets |
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# process patchsets |
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foreach my $ps (@psets) { |
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# extract the Arch repository name (Arch "archive" in Arch-speak) |
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sub extract_reponame { |
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my $fq_cvbr = shift; # archivename/[[[[category]branch]version]revision] |
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return (split(/\//, $fq_cvbr))[0]; |
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} |
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sub extract_versionname { |
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my $name = shift; |
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$name =~ s/--(?:patch|version(?:fix)?|base)-\d+$//; |
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return $name; |
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} |
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# convert a fully-qualified revision or version to a unique dirname: |
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# normalperson@yhbt.net-05/mpd--uclinux--1--patch-2 |
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# becomes: normalperson@yhbt.net-05,mpd--uclinux--1 |
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# |
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# the git notion of a branch is closer to |
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# archive/category--branch--version than archive/category--branch, so we |
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# use this to convert to git branch names. |
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# Also, keep archive names but replace '/' with ',' since it won't require |
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# subdirectories, and is safer than swapping '--' which could confuse |
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# reverse-mapping when dealing with bastard branches that |
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# are just archive/category--version (no --branch) |
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sub tree_dirname { |
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my $revision = shift; |
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my $name = extract_versionname($revision); |
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$name =~ s#/#,#; |
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return $name; |
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} |
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# old versions of git-archimport just use the <category--branch> part: |
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sub old_style_branchname { |
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my $id = shift; |
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my $ret = safe_pipe_capture($TLA,'parse-package-name','-p',$id); |
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chomp $ret; |
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return $ret; |
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} |
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$ps->{branch} = branchname($ps->{id}); |
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*git_branchname = $opt_o ? *old_style_branchname : *tree_dirname; |
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# process patchsets |
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foreach my $ps (@psets) { |
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$ps->{branch} = git_branchname($ps->{id}); |
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# |
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# |
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# ensure we have a clean state |
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# ensure we have a clean state |
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@ -424,16 +485,9 @@ foreach my $ps (@psets) { |
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$opt_v && print " + parents: $par \n"; |
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$opt_v && print " + parents: $par \n"; |
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} |
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} |
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sub branchname { |
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my $id = shift; |
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$id =~ s#^.+?/##; |
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my @parts = split(m/--/, $id); |
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return join('--', @parts[0..1]); |
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} |
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sub apply_import { |
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sub apply_import { |
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my $ps = shift; |
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my $ps = shift; |
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my $bname = branchname($ps->{id}); |
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my $bname = git_branchname($ps->{id}); |
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`mkdir -p $tmp`; |
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`mkdir -p $tmp`; |
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@ -581,19 +635,24 @@ sub parselog { |
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# write/read a tag |
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# write/read a tag |
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sub tag { |
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sub tag { |
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my ($tag, $commit) = @_; |
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my ($tag, $commit) = @_; |
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if ($opt_o) { |
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$tag =~ s|/|--|g; |
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$tag =~ s|/|--|g; |
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$tag = shell_quote($tag); |
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} else { |
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# don't use subdirs for tags yet, it could screw up other porcelains |
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$tag =~ s|/|,|g; |
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} |
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if ($commit) { |
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if ($commit) { |
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open(C,">$git_dir/refs/tags/$tag") |
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open(C,">","$git_dir/refs/tags/$tag") |
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or die "Cannot create tag $tag: $!\n"; |
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or die "Cannot create tag $tag: $!\n"; |
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print C "$commit\n" |
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print C "$commit\n" |
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or die "Cannot write tag $tag: $!\n"; |
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or die "Cannot write tag $tag: $!\n"; |
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close(C) |
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close(C) |
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or die "Cannot write tag $tag: $!\n"; |
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or die "Cannot write tag $tag: $!\n"; |
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print " * Created tag ' $tag' on '$commit'\n" if $opt_v; |
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print " * Created tag '$tag' on '$commit'\n" if $opt_v; |
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} else { # read |
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} else { # read |
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open(C,"<$git_dir/refs/tags/$tag") |
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open(C,"<","$git_dir/refs/tags/$tag") |
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or die "Cannot read tag $tag: $!\n"; |
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or die "Cannot read tag $tag: $!\n"; |
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$commit = <C>; |
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$commit = <C>; |
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chomp $commit; |
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chomp $commit; |
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@ -608,15 +667,16 @@ sub tag { |
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# reads fail softly if the tag isn't there |
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# reads fail softly if the tag isn't there |
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sub ptag { |
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sub ptag { |
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my ($tag, $commit) = @_; |
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my ($tag, $commit) = @_; |
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$tag =~ s|/|--|g; |
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$tag = shell_quote($tag); |
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unless (-d "$git_dir/archimport/tags") { |
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# don't use subdirs for tags yet, it could screw up other porcelains |
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mkpath("$git_dir/archimport/tags"); |
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$tag =~ s|/|,|g; |
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} |
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my $tag_file = "$ptag_dir/$tag"; |
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my $tag_branch_dir = dirname($tag_file); |
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mkpath($tag_branch_dir) unless (-d $tag_branch_dir); |
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if ($commit) { # write |
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if ($commit) { # write |
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open(C,">$git_dir/archimport/tags/$tag") |
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open(C,">",$tag_file) |
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or die "Cannot create tag $tag: $!\n"; |
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or die "Cannot create tag $tag: $!\n"; |
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print C "$commit\n" |
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print C "$commit\n" |
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or die "Cannot write tag $tag: $!\n"; |
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or die "Cannot write tag $tag: $!\n"; |
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@ -626,10 +686,10 @@ sub ptag { |
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unless $tag =~ m/--base-0$/; |
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unless $tag =~ m/--base-0$/; |
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} else { # read |
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} else { # read |
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# if the tag isn't there, return 0 |
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# if the tag isn't there, return 0 |
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unless ( -s "$git_dir/archimport/tags/$tag") { |
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unless ( -s $tag_file) { |
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return 0; |
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return 0; |
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} |
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} |
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open(C,"<$git_dir/archimport/tags/$tag") |
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open(C,"<",$tag_file) |
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or die "Cannot read tag $tag: $!\n"; |
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or die "Cannot read tag $tag: $!\n"; |
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$commit = <C>; |
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$commit = <C>; |
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chomp $commit; |
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chomp $commit; |
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@ -662,7 +722,7 @@ sub find_parents { |
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# simple loop to split the merges |
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# simple loop to split the merges |
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# per branch |
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# per branch |
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foreach my $merge (@{$ps->{merges}}) { |
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foreach my $merge (@{$ps->{merges}}) { |
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my $branch = branchname($merge); |
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my $branch = git_branchname($merge); |
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unless (defined $branches{$branch} ){ |
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unless (defined $branches{$branch} ){ |
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$branches{$branch} = []; |
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$branches{$branch} = []; |
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} |
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} |
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@ -686,7 +746,13 @@ sub find_parents { |
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next unless -e "$git_dir/refs/heads/$branch"; |
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next unless -e "$git_dir/refs/heads/$branch"; |
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my $mergebase = `git-merge-base $branch $ps->{branch}`; |
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my $mergebase = `git-merge-base $branch $ps->{branch}`; |
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die "Cannot find merge base for $branch and $ps->{branch}" if $?; |
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if ($?) { |
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# Don't die here, Arch supports one-way cherry-picking |
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# between branches with no common base (or any relationship |
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# at all beforehand) |
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warn "Cannot find merge base for $branch and $ps->{branch}"; |
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next; |
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} |
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chomp $mergebase; |
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chomp $mergebase; |
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# now walk up to the mergepoint collecting what patches we have |
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# now walk up to the mergepoint collecting what patches we have |
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@ -779,12 +845,7 @@ sub commitid2pset { |
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chomp $commitid; |
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chomp $commitid; |
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my $name = $rptags{$commitid} |
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my $name = $rptags{$commitid} |
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|| die "Cannot find reverse tag mapping for $commitid"; |
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|| die "Cannot find reverse tag mapping for $commitid"; |
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# the keys in %rptag are slightly munged; unmunge |
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$name =~ s|,|/|; |
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# reconvert the 3rd '--' sequence from the end |
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# into a slash |
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$name = reverse $name; |
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$name =~ s!^(.+?--.+?--.+?--.+?)--(.+)$!$1/$2!; |
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$name = reverse $name; |
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my $ps = $psets{$name} |
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my $ps = $psets{$name} |
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|| (print Dumper(sort keys %psets)) && die "Cannot find patchset for $name"; |
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|| (print Dumper(sort keys %psets)) && die "Cannot find patchset for $name"; |
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return $ps; |
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return $ps; |
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Junio C Hamano
19 years ago