bootstrap: document stdin

[code/myrepos.git] / mr

diff --git a/mr b/mr
index 5025e6e1b7fddbc55c1176d88a4c2595e9ae16d9..dba54cc63142a63e1a497db380f67e82bb3565b4 100755 (executable)
--- a/mr
+++ b/mr
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl

 
 =head1 NAME
 
 
 =head1 NAME
 


@@ -28,7 +28,7 @@ B<mr> [options] grep pattern
 
 B<mr> [options] run command [param ...]
 
 
 B<mr> [options] run command [param ...]
 

-B<mr> [options] bootstrap url [directory]
+B<mr> [options] bootstrap src [directory]

 
 B<mr> [options] register [repository]
 
 
 B<mr> [options] register [repository]
 


@@ -130,17 +130,39 @@ These commands are also available:
 
 =over 4
 
 
 =over 4
 

-=item bootstrap url [directory]
+=item bootstrap src [directory]

 
 

-Causes mr to download the url, and use it as a .mrconfig file to checkout
-the repositories listed in it, into the specified directory.
+Causes mr to retrieve the source C<src> and use it as a .mrconfig file to
+checkout the repositories listed in it, into the specified directory.

 
 

-To use scp to download, the url may have the form ssh://[user@]host:file
+B<mr> understands several types of sources:
+
+=over 4
+
+=item URL for curl
+
+C<src> may be an URL understood by B<curl>.
+
+=item copy via ssh
+
+To use B<scp> to download, the C<src> may have the form
+C<ssh://[user@]host:file>.
+
+=item local file
+
+You can retrieve the config file by other means and pass its B<path> as C<src>.
+
+=item standard input
+
+If source C<src> consists in a single dash C<->, config file is read from
+standard input.
+
+=back

 
 The directory will be created if it does not exist. If no directory is
 specified, the current directory will be used.
 
 
 The directory will be created if it does not exist. If no directory is
 specified, the current directory will be used.
 

-If the .mrconfig file includes a repository named ".", that
+As a special case, if source C<src> includes a repository named ".", that

 is checked out into the top of the specified directory.
 
 =item list (or ls)
 is checked out into the top of the specified directory.
 
 =item list (or ls)


@@ -526,7 +548,7 @@ Copyright 2007-2011 Joey Hess <joey@kitenet.net>
 
 Licensed under the GNU GPL version 2 or higher.
 
 
 Licensed under the GNU GPL version 2 or higher.
 

-http://kitenet.net/~joey/code/mr/
+http://myrepos.branchable.com/

 
 =cut
 
 
 =cut
 


@@ -1223,7 +1245,7 @@ my %loaded;
 sub loadconfig {
        my $f=shift;
        my $dir=shift;
 sub loadconfig {
        my $f=shift;
        my $dir=shift;

-       my $bootstrap_url=shift;
+       my $bootstrap_src=shift;

 
        my @toload;
 
 
        my @toload;
 


@@ -1311,8 +1333,8 @@ sub loadconfig {
        my $trusterror = sub {
                my $msg=shift;
        
        my $trusterror = sub {
                my $msg=shift;
        

-               if (defined $bootstrap_url) {
-                       die "mr: $msg in untrusted $bootstrap_url line $lineno\n".
+               if (defined $bootstrap_src) {
+                       die "mr: $msg in untrusted $bootstrap_src line $lineno\n".

                                "(To trust this url, --trust-all can be used; but please use caution;\n".
                                "this can allow arbitrary code execution!)\n";
                }
                                "(To trust this url, --trust-all can be used; but please use caution;\n".
                                "this can allow arbitrary code execution!)\n";
                }


@@ -1325,11 +1347,12 @@ sub loadconfig {
        while (@lines) {
                $_=$nextline->();
 
        while (@lines) {
                $_=$nextline->();
 

+               next if /^\s*\#/ || /^\s*$/;
+

                if (! $trusted && /[[:cntrl:]]/) {
                        $trusterror->("illegal control character");
                }
 
                if (! $trusted && /[[:cntrl:]]/) {
                        $trusterror->("illegal control character");
                }
 

-               next if /^\s*\#/ || /^\s*$/;

                if (/^\[([^\]]*)\]\s*$/) {
                        $section=$1;
 
                if (/^\[([^\]]*)\]\s*$/) {
                        $section=$1;
 


@@ -1668,30 +1691,47 @@ sub register {
 }
 
 sub bootstrap {
 }
 
 sub bootstrap {

-       my $url=shift @ARGV;
+       eval q{use File::Copy};
+       die $@ if $@;
+
+       my $src=shift @ARGV;

        my $dir=shift @ARGV || ".";
        
        my $dir=shift @ARGV || ".";
        

-       if (! defined $url || ! length $url) {
-               die "mr: bootstrap requires url\n";
+       if (! defined $src || ! length $src) {
+               die "mr: bootstrap requires source\n";

        }
        }

-       
-       # Download the config file to a temporary location.
+
+       # Retrieve config file.

        eval q{use File::Temp};
        die $@ if $@;
        my $tmpconfig=File::Temp->new();
        eval q{use File::Temp};
        die $@ if $@;
        my $tmpconfig=File::Temp->new();

-       my @downloader;
-       if ($url =~ m!^ssh://(.*)!) {
-               @downloader = ("scp", $1, $tmpconfig);
+       if ($src =~ m!^[\w\d]+://!) {
+               # Download the config file to a temporary location.
+               my @downloader;
+               if ($src =~ m!^ssh://(.*)!) {
+                       @downloader = ("scp", $1, $tmpconfig);
+               }
+               else {
+                       @downloader = ("curl", "-A", "mr", "-L", "-s", $src, "-o", $tmpconfig);
+                       push(@downloader, "-k") if $insecure;
+               }
+               my $status = system(@downloader);
+               die "mr bootstrap: invalid SSL certificate for $src (consider -k)\n"
+                       if $downloader[0] eq 'curl' && $status >> 8 == 60;
+               die "mr bootstrap: download of $src failed\n" if $status != 0;
+       }
+       elsif ($src eq '-') {
+               # Config file is read from stdin.
+               copy(\*STDIN, $tmpconfig) || die "stdin: $!";

        }
        else {
        }
        else {

-               @downloader = ("curl", "-A", "mr", "-L", "-s", $url, "-o", $tmpconfig);
-               push(@downloader, "-k") if $insecure;
+               # Config file is local.
+               die "mr bootstrap: cannot read file '$src'"
+                       unless -r $src;
+               copy($src, $tmpconfig) || die "copy: $!";

        }
        }

-       my $status = system(@downloader);
-       die "mr bootstrap: invalid SSL certificate for $url (consider -k)\n"
-               if $downloader[0] eq 'curl' && $status >> 8 == 60;
-       die "mr bootstrap: download of $url failed\n" if $status != 0;

 
 

+       # Sanity check on destination directory.

        if (! -e $dir) {
                system("mkdir", "-p", $dir);
        }
        if (! -e $dir) {
                system("mkdir", "-p", $dir);
        }


@@ -1701,16 +1741,14 @@ sub bootstrap {
        # would normally be skipped.
        my $topdir=abs_path(".")."/";
        my @repo=($topdir, $topdir, ".");
        # would normally be skipped.
        my $topdir=abs_path(".")."/";
        my @repo=($topdir, $topdir, ".");

-       loadconfig($tmpconfig, $topdir, $url);
+       loadconfig($tmpconfig, $topdir, $src);

        record(\@repo, action("checkout", @repo, 1))
                if exists $config{$topdir}{"."}{"checkout"};
 
        if (-e ".mrconfig") {
        record(\@repo, action("checkout", @repo, 1))
                if exists $config{$topdir}{"."}{"checkout"};
 
        if (-e ".mrconfig") {

-               print STDERR "mr bootstrap: .mrconfig file already exists, not overwriting with $url\n";
+               print STDERR "mr bootstrap: .mrconfig file already exists, not overwriting with $src\n";

        }
        else {
        }
        else {

-               eval q{use File::Copy};
-               die $@ if $@;

                move($tmpconfig, ".mrconfig") || die "rename: $!";
        }
 
                move($tmpconfig, ".mrconfig") || die "rename: $!";
        }