summaryrefslogtreecommitdiff
path: root/boot
blob: 676f434bdb069285b39d0d9ab74ea170a812964e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
#!/usr/bin/perl -w

use strict;

use Cwd;
use File::Path 'rmtree';
use File::Basename;

my %required_tag;
my $validate;
my $curdir;

$required_tag{"-"} = 1;
$validate = 0;

$curdir = &cwd()
    or die "Can't find current directory: $!";

while ($#ARGV ne -1) {
    my $arg = shift @ARGV;

    if ($arg =~ /^--required-tag=(.*)/) {
        $required_tag{$1} = 1;
    }
    elsif ($arg =~ /^--validate$/) {
        $validate = 1;
    }
    else {
        die "Bad arg: $arg";
    }
}

sub sanity_check_line_endings {
    local $/ = undef;
    open FILE, "packages" or die "Couldn't open file: $!";
    binmode FILE;
    my $string = <FILE>;
    close FILE;

    if ($string =~ /\r/) {
        print STDERR <<EOF;
Found ^M in packages.
Perhaps you need to run
    git config --global core.autocrlf false
and re-check out the tree?
EOF
        exit 1;
    }
}

sub sanity_check_tree {
    my $tag;
    my $dir;

    # Check that we have all boot packages.
    open PACKAGES, "< packages";
    while (<PACKAGES>) {
        if (/^#/) {
            # Comment; do nothing
        }
        elsif (/^([a-zA-Z0-9\/.-]+) +([^ ]+) +[^ ]+ +[^ ]+$/) {
            $dir = $1;
            $tag = $2;

            # If $tag is not "-" then it is an optional repository, so its
            # absence isn't an error.
            if (defined($required_tag{$tag})) {
                # We would like to just check for a .git directory here,
                # but in an lndir tree we avoid making .git directories,
                # so it doesn't exist. We therefore require that every repo
                # has a LICENSE file instead.
                if (! -f "$dir/LICENSE") {
                    print STDERR "Error: $dir/LICENSE doesn't exist.\n";
                    die "Maybe you haven't done './sync-all get'?";
                }
            }
        }
        else {
            die "Bad line in packages file: $_";
        }
    }
    close PACKAGES;
}

# Create libraries/*/{ghc.mk,GNUmakefile}
sub boot_pkgs {
    my @library_dirs = ();

    my $package;

    for $package (glob "libraries/*/") {
        $package =~ s/\/$//;
        my $pkgs = "$package/ghc-packages";
        if (-f $pkgs) {
            open PKGS, "< $pkgs"
                or die "Failed to open $pkgs: $!";
            while (<PKGS>) {
                chomp;
                s/\r//g;
                if (/.+/) {
                    push @library_dirs, "$package/$_";
                }
            }
        }
        else {
            push @library_dirs, $package;
        }
    }

    for $package (@library_dirs) {
        my $dir = &basename($package);
        my @cabals = glob("$package/*.cabal");
        if ($#cabals > 0) {
            die "Too many .cabal file in $package\n";
        }
        if ($#cabals eq 0) {
            my $cabal = $cabals[0];
            my $pkg;
            my $top;
            if (-f $cabal) {
                $pkg = $cabal;
                $pkg =~ s#.*/##;
                $pkg =~ s/\.cabal$//;
                $top = $package;
                $top =~ s#[^/]+#..#g;
                $dir = $package;
                $dir =~ s#^libraries/##g;

                print "Creating $package/ghc.mk\n";
                open GHCMK, "> $package/ghc.mk"
                    or die "Opening $package/ghc.mk failed: $!";
                print GHCMK "${package}_PACKAGE = ${pkg}\n";
                print GHCMK "${package}_dist-install_GROUP = libraries\n";
                print GHCMK "\$(if \$(filter ${dir},\$(PACKAGES_STAGE0)),\$(eval \$(call build-package,${package},dist-boot,0)))\n";
                print GHCMK "\$(if \$(filter ${dir},\$(PACKAGES_STAGE1)),\$(eval \$(call build-package,${package},dist-install,1)))\n";
                print GHCMK "\$(if \$(filter ${dir},\$(PACKAGES_STAGE2)),\$(eval \$(call build-package,${package},dist-install,2)))\n";
                close GHCMK
                    or die "Closing $package/ghc.mk failed: $!";

                print "Creating $package/GNUmakefile\n";
                open GNUMAKEFILE, "> $package/GNUmakefile"
                    or die "Opening $package/GNUmakefile failed: $!";
                print GNUMAKEFILE "dir = ${package}\n";
                print GNUMAKEFILE "TOP = ${top}\n";
                print GNUMAKEFILE "include \$(TOP)/mk/sub-makefile.mk\n";
                print GNUMAKEFILE "FAST_MAKE_OPTS += stage=0\n";
                close GNUMAKEFILE
                    or die "Closing $package/GNUmakefile failed: $!";
            }
        }
    }
}

# autoreconf everything that needs it.
sub autoreconf {
    my $dir;

    foreach $dir (".", glob("libraries/*/")) {
        if (-f "$dir/configure.ac") {
            print "Booting $dir\n";
            chdir $dir or die "can't change to $dir: $!";
            system("autoreconf") == 0
                or die "Running autoreconf failed with exitcode $?";
            chdir $curdir or die "can't change to $curdir: $!";
        }
    }
}

sub checkBuildMk {
    if ($validate eq 0 && ! -f "mk/build.mk") {
        print <<EOF;

WARNING: You don't have a mk/build.mk file.

By default a standard GHC build will be done, which uses optimisation
and builds the profiling libraries. This will take a long time, so may
not be what you want if you are developing GHC or the libraries, rather
than simply building it to use it.

For information on creating a mk/build.mk file, please see:
    http://ghc.haskell.org/trac/ghc/wiki/Building/Using#Buildconfiguration

EOF
    }
}

&sanity_check_line_endings();
&sanity_check_tree();
&boot_pkgs();
&autoreconf();
&checkBuildMk();