X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=darcs-all;h=106eb8f5ccbff273959b72aedea9b9fd3ced1e0a;hp=b1451b173f22dd1bd8097d3c95db5c9053c88c6a;hb=cb8fb4dc68b503474bd65c0a669d9018a3ce96fe;hpb=b8539b1d6fabe70b28ce4da89d8e7c451d763e97

diff --git a/darcs-all b/darcs-all
index b1451b1..106eb8f 100644
--- a/darcs-all
+++ b/darcs-all
@@ -2,36 +2,137 @@
 
 use strict;
 
-# Figure out where to get the other repositories from,
-# based on where this GHC repo came from.
-my $defaultrepo = `cat _darcs/prefs/defaultrepo`;
-chomp $defaultrepo;
-my $defaultrepo_base;
-my $checked_out_tree;
-
-if ($defaultrepo =~ /^...*:/) {
-    # HTTP or SSH
-    # Above regex says "at least two chars before the :", to avoid
-    # catching Win32 drives ("C:\").
-    $defaultrepo_base = $defaultrepo;
-    $defaultrepo_base =~ s#/[^/]+/?$##;
-    $checked_out_tree = 0;
-}
-elsif ($defaultrepo =~ /^\/|\.\.\/|.:(\/|\\)/) {
-    # Local filesystem, either absolute or relative path
-    # (assumes a checked-out tree):
-    $defaultrepo_base = $defaultrepo;
-    $checked_out_tree = 1;
-}
-else {
-    die "Couldn't work out defaultrepo";
-}
+# Usage:
+#
+# ./darcs-all [-q] [-s] [-i] [-r repo]
+#             [--nofib] [--testsuite] [--checked-out] cmd [darcs flags]
+#
+# Applies the darcs command "cmd" to each repository in the tree.
+#
+# e.g.
+#      ./darcs-all -r http://darcs.haskell.org/ghc get
+#          To get any repos which do not exist in the local tree
+#
+#      ./darcs-all -r ~/ghc-validate push
+#          To push all your repos to the ~/ghc-validate tree
+#
+#      ./darcs-all pull -a
+#          To pull everything from the default repos
+#
+#      ./darc-all push --dry-run
+#          To see what local patches you have relative to the main repos
+#
+# -------------- Flags -------------------
+#   -q says to be quite, and -s to be silent.
+#
+#   -i says to ignore darcs errors and move on to the next repository
+#
+#   -r repo says to use repo as the location of package repositories
+#
+#   --checked-out says that the remote repo is in checked-out layout, as
+#   opposed to the layout used for the main repo.  By default a repo on
+#   the local filesystem is assumed to be checked-out, and repos accessed
+#   via HTTP or SSH are assumed to be in the main repo layout; use
+#   --checked-out to override the latter.
+#
+#   --nofib, --testsuite also get the nofib and testsuite repos respectively
+#
+#   The darcs get flag you are most likely to want is --complete. By
+#   default we pass darcs the --partial flag.
+#
+# ------------ Which repos to use -------------
+# darcs-all uses the following algorithm to decide which remote repos to use
+#
+#  It always computes the remote repos from a single base, $repo_base
+#  How is $repo_base set?  
+#    If you say "-r repo", then that's $repo_base
+#    othewise $repo_base is set thus:
+#       look in _darcs/prefs/defaultrepo, 
+#       and remove the trailing 'ghc'
+#
+#  Then darcs-all iterates over the package found in the file
+#  ./packages, which has entries like:
+#         libraries/array  packages/array  darcs
+#    or, in general
+#         <local-path>  <remote-path> <vcs>
+# 
+#    If $repo_base looks like a local filesystem path, or if you give
+#    the --checked-out flag, darcs-all works on repos of form
+#          $repo_base/<local-path>
+#    otherwise darcs-all works on repos of form
+#          $repo_base/<remote-path>
+#    This logic lets you say
+#      both    darcs-all -r http://darcs.haskell.org/ghc-6.12 pull
+#      and     darcs-all -r ../HEAD pull
+#    The latter is called a "checked-out tree".
+
+# NB: darcs-all *ignores* the defaultrepo of all repos other than the
+# root one.  So the remote repos must be laid out in one of the two
+# formats given by <local-path> and <remote-path> in the file 'packages'.
+
+
+$| = 1; # autoflush stdout after each print, to avoid output after die
+
+my $defaultrepo;
 
 my $verbose = 2;
 my $ignore_failure = 0;
+my $want_remote_repo = 0;
+my $checked_out_flag = 0;
 
 my %tags;
 
+my @packages;
+
+# Figure out where to get the other repositories from.
+sub getrepo {
+    my $basedir = ".";
+    my $repo = $defaultrepo || `cat $basedir/_darcs/prefs/defaultrepo`;
+    chomp $repo;
+
+    my $repo_base;
+    my $checked_out_tree;
+
+    if ($repo =~ /^...*:/) {
+        # HTTP or SSH
+        # Above regex says "at least two chars before the :", to avoid
+        # catching Win32 drives ("C:\").
+        $repo_base = $repo;
+
+        # --checked-out is needed if you want to use a checked-out repo
+        # over SSH or HTTP
+        if ($checked_out_flag) {
+            $checked_out_tree = 1;
+        } else {
+            $checked_out_tree = 0;
+        }
+
+        # Don't drop the last part of the path if specified with -r, as
+        # it expects repos of the form:
+        #
+        #   http://darcs.haskell.org
+        #
+        # rather than
+        #   
+        #   http://darcs.haskell.org/ghc
+        #
+        if (!$defaultrepo) {
+            $repo_base =~ s#/[^/]+/?$##;
+        }
+    }
+    elsif ($repo =~ /^\/|\.\.\/|.:(\/|\\)/) {
+        # Local filesystem, either absolute or relative path
+        # (assumes a checked-out tree):
+        $repo_base = $repo;
+        $checked_out_tree = 1;
+    }
+    else {
+        die "Couldn't work out repo";
+    }
+
+    return $repo_base, $checked_out_tree;
+}
+
 sub message {
     if ($verbose >= 2) {
         print "@_\n";
@@ -47,39 +148,82 @@ sub warning {
 sub darcs {
     message "== running darcs @_";
     system ("darcs", @_) == 0
-        or $ignore_failure
-        or die "darcs failed: $?";
+       or $ignore_failure
+       or die "darcs failed: $?";
+}
+
+sub parsePackages {
+    my @repos;
+    my $lineNum;
+
+    my ($repo_base, $checked_out_tree) = getrepo();
+
+    open IN, "< packages" or die "Can't open packages file";
+    @repos = <IN>;
+    close IN;
+
+    @packages = ();
+    $lineNum = 0;
+    foreach (@repos) {
+        chomp;
+        $lineNum++;
+        if (/^([^# ]+) +([^ ]+) +([^ ]+) +([^ ]+) +([^ ]+)$/) {
+            my %line;
+            $line{"localpath"}  = $1;
+            $line{"tag"}        = $2;
+            $line{"remotepath"} = $3;
+            $line{"vcs"}        = $4;
+            $line{"upstream"}   = $5;
+            push @packages, \%line;
+        }
+        elsif (! /^(#.*)?$/) {
+            die "Bad content on line $lineNum of packages file: $_";
+        }
+    }
 }
 
 sub darcsall {
     my $localpath;
+    my $remotepath;
     my $path;
     my $tag;
+    my @repos;
+    my $command = $_[0];
+    my $line;
 
-    darcs @_;
+    my ($repo_base, $checked_out_tree) = getrepo();
 
-    open IN, "< packages" or die "Can't open packages file";
-    while (<IN>) {
-        chomp;
-        if (/^([^ ]+) +(?:([^ ]+) +)?([^ ]+)/) {
-            $localpath = $1;
-            $tag = defined($2) ? $2 : "";
+    for $line (@packages) {
+        $localpath  = $$line{"localpath"};
+        $tag        = $$line{"tag"};
+        $remotepath = $$line{"remotepath"};
+
+        if ($checked_out_tree) {
+            $path = "$repo_base/$localpath";
+        }
+        else {
+            $path = "$repo_base/$remotepath";
+        }
 
-            if (-d "$localpath/_darcs") {
+        if (-d "$localpath/_darcs") {
+            if ($want_remote_repo) {
+                if ($command =~ /^opt/) {
+                    # Allows ./darcs-all optimize --relink
+                    darcs (@_, "--repodir", $localpath, "--sibling=$path");
+                } else {
+                    darcs (@_, "--repodir", $localpath, $path);
+                }
+            } else {
                 darcs (@_, "--repodir", $localpath);
             }
-            elsif ($tag eq "") {
-                message "== Required repo $localpath is missing! Skipping";
-            }
-            else {
-                message "== $localpath repo not present; skipping";
-            }
         }
-        elsif (! /^$/) {
-            die "Bad line: $_";
+        elsif ($tag eq "-") {
+            message "== Required repo $localpath is missing! Skipping";
+        }
+        else {
+            message "== $localpath repo not present; skipping";
         }
     }
-    close IN;
 }
 
 sub darcsget {
@@ -88,8 +232,12 @@ sub darcsget {
     my $remotepath;
     my $path;
     my $tag;
+    my @repos;
+    my $line;
+
+    my ($repo_base, $checked_out_tree) = getrepo();
 
-    if (! grep /(?:--complete|--partial)/, @_) {
+    if (! grep /(?:--complete|--partial|--lazy)/, @_) {
         warning("adding --partial, to override use --complete");
         $r_flags = [@_, "--partial"];
     }
@@ -97,42 +245,57 @@ sub darcsget {
         $r_flags = \@_;
     }
 
-    open IN, "< packages" or die "Can't open packages file";
-    while (<IN>) {
-        chomp;
-        if (/^([^ ]+) +(?:([^ ]+) +)?([^ ]+)/) {
-            $localpath = $1;
-            $tag = defined($2) ? $2 : "";
-            $remotepath = $3;
+    for $line (@packages) {
+        $localpath  = $$line{"localpath"};
+        $tag        = $$line{"tag"};
+        $remotepath = $$line{"remotepath"};
+
+        if ($checked_out_tree) {
+            $path = "$repo_base/$localpath";
+        }
+        else {
+            $path = "$repo_base/$remotepath";
+        }
 
-            if ($checked_out_tree) {
-                $path = "$defaultrepo_base/$localpath";
+        if ($tags{$tag} eq 1) {
+            if (-d $localpath) {
+                warning("$localpath already present; omitting");
             }
             else {
-                $path = "$defaultrepo_base/$remotepath";
+                darcs (@$r_flags, $path, $localpath);
             }
+        }
+    }
+}
 
-            if (($tag eq "") || defined($tags{$tag})) {
-                if (-d $localpath) {
-                    warning("$localpath already present; omitting");
-                }
-                else {
-                    darcs (@$r_flags, $path, $localpath);
-                }
+sub darcsupstreampull {
+    my $localpath;
+    my $upstream;
+    my $line;
+
+    for $line (@packages) {
+        $localpath  = $$line{"localpath"};
+        $upstream   = $$line{"upstream"};
+
+        if ($upstream ne "-") {
+            if (-d $localpath) {
+                darcs ("pull", @_, "--repodir", $localpath, $upstream);
             }
         }
-        elsif (! /^$/) {
-            die "Bad line: $_";
-        }
     }
-    close IN;
 }
 
 sub main {
-    if (! -d "_darcs" || ! -d "compiler") {
+    if (! -d "compiler") {
         die "error: darcs-all must be run from the top level of the ghc tree."
     }
 
+    $tags{"-"} = 1;
+    $tags{"dph"} = 1;
+    $tags{"nofib"} = 0;
+    $tags{"testsuite"} = 0;
+    $tags{"extra"} = 0;
+
     while ($#_ ne -1) {
         my $arg = shift;
         # We handle -q here as well as lower down as we need to skip over it
@@ -143,27 +306,49 @@ sub main {
         elsif ($arg eq "-s") {
             $verbose = 0;
         }
-        # --ci says we grab cabal-install repo, and the libraries it needs
-        # with 'get'.
-        # It has no effect on the other commands.
-        elsif ($arg eq "--ci") {
-            $tags{"ci"} = 1;
+        elsif ($arg eq "-r") {
+            $defaultrepo = shift;
         }
-        # --extra says we grab the extra libs with 'get'.
-        # It has no effect on the other commands.
-        elsif ($arg eq "--extra") {
-            $tags{"extralibs"} = 1;
+        elsif ($arg eq "-i") {
+            $ignore_failure = 1;
         }
         # --nofib tells get to also grab the nofib repo.
         # It has no effect on the other commands.
         elsif ($arg eq "--nofib") {
             $tags{"nofib"} = 1;
         }
+        elsif ($arg eq "--no-nofib") {
+            $tags{"nofib"} = 0;
+        }
         # --testsuite tells get to also grab the testsuite repo.
         # It has no effect on the other commands.
         elsif ($arg eq "--testsuite") {
             $tags{"testsuite"} = 1;
         }
+        elsif ($arg eq "--no-testsuite") {
+            $tags{"testsuite"} = 0;
+        }
+        # --dph tells get to also grab the dph repo.
+        # It has no effect on the other commands.
+        elsif ($arg eq "--dph") {
+            $tags{"dph"} = 1;
+        }
+        elsif ($arg eq "--no-dph") {
+            $tags{"dph"} = 0;
+        }
+        # --extralibs tells get to also grab the extra repos.
+        # It has no effect on the other commands.
+        elsif ($arg eq "--extra") {
+            $tags{"extra"} = 1;
+        }
+        elsif ($arg eq "--no-extra") {
+            $tags{"extra"} = 0;
+        }
+        # Use --checked-out if the remote repos are a checked-out tree,
+        # rather than the master trees.
+        elsif ($arg eq "--checked-out") {
+            $checked_out_flag = 1;
+        }
         else {
             unshift @_, $arg;
             if (grep /^-q$/, @_) {
@@ -177,17 +362,76 @@ sub main {
         die "What do you want to do?";
     }
     my $command = $_[0];
+    parsePackages;
     if ($command eq "get") {
         darcsget @_;
     }
+    elsif ($command eq "upstreampull") {
+        shift;
+        darcsupstreampull @_;
+    }
     else {
         if ($command =~ /^(?:w|wh|wha|what|whats|whatsn|whatsne|whatsnew)$/) {
             # Hack around whatsnew failing if there are no changes
             $ignore_failure = 1;
         }
+        if ($command =~ /^(pul|pus|sen|put|opt)/) {
+            $want_remote_repo = 1;
+        }
         darcsall @_;
     }
 }
 
+END {
+    my $ec = $?;
+
+    message "== Checking for old bytestring repo";
+    if (-d "libraries/bytestring/_darcs") {
+        if ((system "darcs annotate --repodir libraries/bytestring --match 'hash 20080118173113-3fd76-d5b74c04372a297b585ebea4e16d524551ce5035' > /dev/null 2> /dev/null") == 0) {
+            print <<EOF;
+============================
+ATTENTION!
+
+You have an old bytestring repository in your GHC tree!
+
+Please remove it (e.g. "rm -r libraries/bytestring"), and the new
+version of bytestring will be used from a tarball instead.
+============================
+EOF
+        }
+    }
+
+    message "== Checking for bytestring tarball";
+    if (-d "libraries/bytestring" && not -d "libraries/bytestring/_darcs") {
+        print <<EOF;
+============================
+ATTENTION!
+
+You have an old bytestring in your GHC tree!
+
+Please remove it (e.g. "rm -r libraries/bytestring"), and then run
+"./darcs-all get" to get the darcs repository.
+============================
+EOF
+    }
+
+    message "== Checking for unpulled tarball patches";
+    if ((system "darcs annotate --match 'hash 20090930200358-3fd76-cab3bf4a0a9e3902eb6dd41f71712ad3a6a9bcd1' > /dev/null 2> /dev/null") == 0) {
+        print <<EOF;
+============================
+ATTENTION!
+
+You have the unpulled tarball patches in your GHC tree!
+
+Please remove them:
+    darcs unpull -p "Use mingw tarballs to get mingw on Windows"
+and say yes to each patch.
+============================
+EOF
+    }
+
+    $? = $ec;
+}
+
 main(@ARGV);