X-Git-Url: https://git.madduck.net/code/myrepos.git/blobdiff_plain/fef39d7214a11d37dd7b5e570419de5637bdcda4..2ebc050bbabaff69a2e17f8a350bc7440d4f08ff:/mr?ds=sidebyside diff --git a/mr b/mr index 577725d..7f147cc 100755 --- a/mr +++ b/mr @@ -14,50 +14,195 @@ B [options] status B [options] commit [-m "message"] +B [options] record [-m "message"] + +B [options] fetch + +B [options] push + +B [options] diff + +B [options] log + +B [options] run command [param ...] + +B [options] bootstrap url [directory] + +B [options] register [repository] + +B [options] config section ["parameter=[value]" ...] + B [options] action [params ...] +B [options] [online|offline] + +B [options] remember action [params ...] + =head1 DESCRIPTION -B is a Multiple Repository management tool. It allows you to register a -set of repositories in a .mrconfig file, and then checkout, update, or -perform other actions on all of the repositories at once. +B is a Multiple Repository management tool. It can checkout, update, or +perform other actions on a set of repositories as if they were one combined +repository. It supports any combination of subversion, git, cvs, mercurial, +bzr, darcs, fossil and veracity repositories, and support for other version +control systems can easily be added. + +B cds into and operates on all registered repositories at or below your +working directory. Or, if you are in a subdirectory of a repository that +contains no other registered repositories, it will stay in that directory, +and work on only that repository, -Any mix of revision control systems can be used with B, and you can -define arbitrary actions for commands like "update", "checkout", or "commit". +B is configured by .mrconfig files, which list the repositories. It +starts by reading the .mrconfig file in your home directory, and this can +in turn chain load .mrconfig files from repositories. It also automatically +looks for a .mrconfig file in the current directory, or in one of its +parent directories. -The predefined commands should be fairly familiar to users of any revision +These predefined commands should be fairly familiar to users of any version control system: =over 4 =item checkout (or co) -Checks out all the registered repositories that are not already checked -out. +Checks out any repositories that are not already checked out. =item update -Updates each registered repository from its configured remote repository. +Updates each repository from its configured remote repository. If a repository isn't checked out yet, it will first check it out. =item status -Displays a status report for each registered repository, showing what -uncommitted changes are present in the repository. +Displays a status report for each repository, showing what +uncommitted changes are present in the repository. For distributed version +control systems, also shows unpushed local branches. =item commit (or ci) -Commits changes to each registered repository. (By default, changes -are pushed to the remote repository too, when using distributed systems -like git.) +Commits changes to each repository. (By default, changes are pushed to the +remote repository too, when using distributed systems like git. If you +don't like this default, you can change it in your .mrconfig, or use record +instead.) + +The optional -m parameter allows specifying a commit message. + +=item record + +Records changes to the local repository, but does not push them to the +remote repository. Only supported for distributed version control systems. The optional -m parameter allows specifying a commit message. +=item fetch + +Fetches from each repository's remote repository, but does not +update the working copy. Only supported for some distributed version +control systems. + +=item push + +Pushes committed local changes to the remote repository. A no-op for +centralized version control systems. + +=item diff + +Show a diff of uncommitted changes. + +=item log + +Show the commit log. + +=item run command [param ...] + +Runs the specified command in each repository. + +=back + +These commands are also available: + +=over 4 + +=item bootstrap url [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. + +To use scp to download, the url may have the form ssh://[user@]host:file + +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 +is checked out into the top of the specified directory. + +=item list (or ls) + +List the repositories that mr will act on. + +=item register + +Register an existing repository in a mrconfig file. By default, the +repository in the current directory is registered, or you can specify a +directory to register. + +The mrconfig file that is modified is chosen by either the -c option, or by +looking for the closest known one at or in a parent of the current directory. + +=item config + +Adds, modifies, removes, or prints a value from a mrconfig file. The next +parameter is the name of the section the value is in. To add or modify +values, use one or more instances of "parameter=value". Use "parameter=" to +remove a parameter. Use just "parameter" to get the value of a parameter. + +For example, to add (or edit) a repository in src/foo: + + mr config src/foo checkout="svn co svn://example.com/foo/trunk foo" + +To show the command that mr uses to update the repository in src/foo: + + mr config src/foo update + +To see the built-in library of shell functions contained in mr: + + mr config DEFAULT lib + +The mrconfig file that is used is chosen by either the -c option, or by +looking for the closest known one at or in a parent of the current directory. + +=item offline + +Advises mr that it is in offline mode. Any commands that fail in +offline mode will be remembered, and retried when mr is told it's online. + +=item online + +Advices mr that it is in online mode again. Commands that failed while in +offline mode will be re-run. + +=item remember + +Remember a command, to be run later when mr re-enters online mode. This +implicitly puts mr into offline mode. The command can be any regular mr +command. This is useful when you know that a command will fail due to being +offline, and so don't want to run it right now at all, but just remember +to run it when you go back online. + +=item help + +Displays this help. + =back -Actions can be abbreviated to any unambiguous subsctring, so -"mr st" is equivilant to "mr status". +Actions can be abbreviated to any unambiguous substring, so +"mr st" is equivalent to "mr status", and "mr up" is equivalent to "mr +update" + +Additional parameters can be passed to most commands, and are passed on +unchanged to the underlying version control system. This is mostly useful +if the repositories mr will act on all use the same version control +system. =head1 OPTIONS @@ -65,82 +210,312 @@ Actions can be abbreviated to any unambiguous subsctring, so =item -d directory +=item --directory directory + Specifies the topmost directory that B should work in. The default is -the current working directory. B will operate on all registered -repositories at or under the directory. +the current working directory. =item -c mrconfig -Use the specified mrconfig file, instead of looking for on in your home -directory. +=item --config mrconfig + +Use the specified mrconfig file. The default is to use both F<~/.mrconfig> +as well as look for a F<.mrconfig> file in the current directory, or in one +of its parent directories. + +=item -f + +=item --force + +Force mr to act on repositories that would normally be skipped due to their +configuration. =item -v +=item --verbose + Be verbose. -=back +=item -q -=head1 FILES +=item --quiet -B is configured by .mrconfig files. It starts by reading the .mrconfig -file in your home directory. Each repository specified in a .mrconfig file -can also have its own .mrconfig file in its root directory that can -optionally be used as well. So you could have a ~/.mrconfig that registers a -repository ~/src, that itself contains a ~/src/.mrconfig file, that in turn -registers several additional repositories. +Be quiet. This suppresses mr's usual output, as well as any output from +commands that are run (including stderr output). If a command fails, +the output will be shown. -The .mrconfig file uses a variant of the INI file format. Lines starting with -"#" are comments. Lines ending with "\" are continued on to the next line. -Sections specify where each repository is located, relative to the -directory that contains the .mrconfig file. +=item -k -Within a section, each parameter defines a shell command to run to handle a -given action. Note that these shell commands are run in a "set -e" shell -environment, where any additional parameters you pass are available in -"$@". B cds into the repository directory before running -a command, except for the "checkout" command, which is run in the parent -of the repository directory, since the repository isn't checked out yet. +=item --insecure + +Accept untrusted SSL certificates when bootstrapping. + +=item -s + +=item --stats + +Expand the statistics line displayed at the end to include information +about exactly which repositories failed and were skipped, if any. + +=item -i + +=item --interactive + +Interactive mode. If a repository fails to be processed, a subshell will be +started which you can use to resolve or investigate the problem. Exit the +subshell to continue the mr run. + +=item -n [number] + +=item --no-recurse [number] + +If no number if specified, just operate on the repository for the current +directory, do not recurse into deeper repositories. -There are three special parameters. If the "skip" parameter is set and -its command returns nonzero, then B will skip acting on that repository. -If the "chain" parameter is set and its command returns nonzero, then B -will try to load a .mrconfig file from the root of the repository. (You -should avoid chaining from repositories with untrusted committers.) The -"lib" parameter can specify some shell code that will be run before each -command, this can be a useful way to define shell functions other commands -can use. +If a number is specified, will recurse into repositories at most that many +subdirectories deep. For example, with -n 2 it would recurse into ./src/foo, +but not ./src/packages/bar. -The "default" section allows setting up default handlers for each action, -and is overridden by the contents of other sections. mr contains default -handlers for the "update", "status", and "commit" actions, so normally -you only need to specify what to do for "checkout". +=item -j [number] -The "alias" section allows adding aliases for commands. Each parameter -is an alias, and its value is the command to run. +=item --jobs [number] -For example: +Run the specified number of jobs in parallel, or an unlimited number of jobs +with no number specified. This can greatly speed up operations such as updates. +It is not recommended for interactive operations. + +Note that running more than 10 jobs at a time is likely to run afoul of +ssh connection limits. Running between 3 and 5 jobs at a time will yield +a good speedup in updates without loading the machine too much. + +=item -t + +=item --trust-all + +Trust all mrconfig files even if they are not listed in F<~/.mrtrust>. +Use with caution. + +=item -p + +=item --path + +This obsolete flag is ignored. + +=back + +=head1 MRCONFIG FILES + +Here is an example F<.mrconfig> file: [src] - checkout = svn co svn://svn.example.com/src/trunk src + checkout = svn checkout svn://svn.example.com/src/trunk src chain = true [src/linux-2.6] - skip = small - checkout = git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git - - [default] - lib = \ - small() { - case "$(hostname)" in; \ - slug|snail); \ - return 0; ;; ; \ - esac; \ - return 1; \ - } + checkout = git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git && + cd linux-2.6 && + git checkout -b mybranch origin/master + +The F<.mrconfig> file uses a variant of the INI file format. Lines +starting with "#" are comments. Values can be continued to the +following line by indenting the line with whitespace. + +The C section allows setting default values for the sections that +come after it. + +The C section allows adding aliases for actions. Each parameter +is an alias, and its value is the action to use. + +All other sections add repositories. The section header specifies the +directory where the repository is located. This is relative to the directory +that contains the mrconfig file, but you can also choose to use absolute +paths. (Note that you can use environment variables in section names; they +will be passed through the shell for expansion. For example, +C<[$HOSTNAME]>, or C<[${HOSTNAME}foo]>). + +Within a section, each parameter defines a shell command to run to handle a +given action. mr contains default handlers for "update", "status", +"commit", and other standard actions. + +Normally you only need to specify what to do for "checkout". Here you +specify the command to run in order to create a checkout of the repository. +The command will be run in the parent directory, and must create the +repository's directory. So use C, C, C +or C (for a bound branch), etc. + +Note that these shell commands are run in a C shell +environment, where any additional parameters you pass are available in +C<$@>. All commands other than "checkout" are run inside the repository, +though not necessarily at the top of it. + +The C environment variable is set to the path to the top of the +repository. (For the "register" action, "MR_REPO" is instead set to the +basename of the directory that should be created when checking the +repository out.) + +The C environment variable is set to the .mrconfig file +that defines the repo being acted on, or, if the repo is not yet in a config +file, the F<.mrconfig> file that should be modified to register the repo. + +The C environment variable is set to the command being run +(update, checkout, etc). + +A few parameters have special meanings: + +=over 4 + +=item skip + +If the "skip" parameter is set and its command returns true, then B +will skip acting on that repository. The command is passed the action +name in C<$1>. + +Here are two examples. The first skips the repo unless +mr is run by joey. The second uses the hours_since function +(included in mr's built-in library) to skip updating the repo unless it's +been at least 12 hours since the last update. + + [mystuff] + checkout = ... + skip = test `whoami` != joey + + [linux] + checkout = ... + skip = [ "$1" = update ] && ! hours_since "$1" 12 + +Another way to use skip is for a lazy checkout. This makes mr skip +operating on a repo unless it already exists. To enable the +repo, you have to explicitly check it out (using "mr --force -d foo checkout"). + + [foo] + checkout = ... + skip = lazy + +=item order + +The "order" parameter can be used to override the default ordering of +repositories. The default order value is 10. Use smaller values to make +repositories be processed earlier, and larger values to make repositories +be processed later. + +Note that if a repository is located in a subdirectory of another +repository, ordering it to be processed earlier is not recommended. + +=item chain + +If the "chain" parameter is set and its command returns true, then B +will try to load a F<.mrconfig> file from the root of the repository. + +=item include + +If the "include" parameter is set, its command is ran, and should output +additional mrconfig file content. The content is included as if it were +part of the including file. + +Unlike all other parameters, this parameter does not need to be placed +within a section. + +B ships several libraries that can be included to add support for +additional version control type things (unison, git-svn, git-fake-bare, +git-subtree). To include them all, you could use: + + include = cat /usr/share/mr/* + +See the individual files for details. + +=item deleted + +If the "deleted" parameter is set and its command returns true, then +B will treat the repository as deleted. It won't ever actually delete +the repository, but it will warn if it sees the repository's directory. +This is useful when one mrconfig file is shared among multiple machines, +to keep track of and remember to delete old repositories. + +=item lib + +The "lib" parameter can specify some shell code that will be run +before each command, this can be a useful way to define shell +functions for other commands to use. + +Unlike most other parameters, this can be specified multiple times, in +which case the chunks of shell code are accumulatively concatenated +together. + +=item fixups + +If the "fixups" parameter is set, its command is run whenever a repository +is checked out, or updated. This provides an easy way to do things +like permissions fixups, or other tweaks to the repository content, +whenever the repository is changed. + +=item VCS_action + +When looking for a command to run for a given action, mr first looks for +a parameter with the same name as the action. If that is not found, it +looks for a parameter named "VCS_action" (substituting in the name of the +version control system and the action). + +Internally, mr has settings for "git_update", "svn_update", etc. To change +the action that is performed for a given version control system, you can +override these VCS specific actions. To add a new version control system, +you can just add VCS specific actions for it. + +=item pre_ and post_ + +If a "pre_action" parameter is set, its command is run before mr performs the +specified action. Similarly, "post_action" parameters are run after mr +successfully performs the specified action. For example, "pre_commit" is +run before committing; "post_update" is run after updating. + +=item _append + +Any parameter can be suffixed with C<_append>, to add an additional value +to the existing value of the parameter. In this way, actions +can be constructed accumulatively. + +=item VCS_test + +The name of the version control system is itself determined by +running each defined "VCS_test" action, until one succeeds. + +=back + +=head1 UNTRUSTED MRCONFIG FILES + +Since mrconfig files can contain arbitrary shell commands, they can do +anything. This flexibility is good, but it also allows a malicious mrconfig +file to delete your whole home directory. Such a file might be contained +inside a repository that your main F<~/.mrconfig> checks out. To +avoid worries about evil commands in a mrconfig file, mr defaults to +reading all mrconfig files other than the main F<~/.mrconfig> in untrusted +mode. In untrusted mode, mrconfig files are limited to running only known +safe commands (like "git clone") in a carefully checked manner. + +To configure mr to trust other mrconfig files, list them in F<~/.mrtrust>. +One mrconfig file should be listed per line. Either the full pathname +should be listed, or the pathname can start with F<~/> to specify a file +relative to your home directory. + +=head1 OFFLINE LOG FILE + +The F<~/.mrlog> file contains commands that mr has remembered to run later, +due to being offline. You can delete or edit this file to remove commands, +or even to add other commands for 'mr online' to run. If the file is +present, mr assumes it is in offline mode. + +=head1 EXTENSIONS + +mr can be extended to support things such as unison and git-svn. Some +files providing such extensions are available in F. See +the documentation in the files for details about using them. + +=head1 EXIT STATUS + +mr returns nonzero if a command failed in any of the repositories. =head1 AUTHOR -Copyright 2007 Joey Hess +Copyright 2007-2011 Joey Hess Licensed under the GNU GPL version 2 or higher. @@ -153,135 +528,485 @@ use strict; use Getopt::Long; use Cwd qw(getcwd abs_path); -my $directory=getcwd(); -my $config="$ENV{HOME}/.mrconfig"; +# things that can happen when mr runs a command +use constant { + OK => 0, + FAILED => 1, + SKIPPED => 2, + ABORT => 3, +}; + +# configurables +my $config_overridden=0; my $verbose=0; +my $quiet=0; +my $stats=0; +my $force=0; +my $insecure=0; +my $interactive=0; +my $max_depth; +my $no_chdir=0; +my $jobs=1; +my $trust_all=0; +my $directory=getcwd(); + +my $HOME_MR_CONFIG = "$ENV{HOME}/.mrconfig"; +$ENV{MR_CONFIG}=find_mrconfig(); + +# globals :-( my %config; +my %configfiles; my %knownactions; my %alias; +my (@ok, @failed, @skipped); -Getopt::Long::Configure("no_permute"); -my $result=GetOptions( - "d=s" => sub { $directory=abs_path($_[1]) }, - "c=s" => \$config, - "v" => \$verbose, -); -if (! $result || @ARGV < 1) { - die("Usage: mr [-d directory] action [params ...]\n"); -} +main(); -loadconfig(\*DATA); -loadconfig($config); -#use Data::Dumper; -#print Dumper(\%config); +sub shellquote { + my $i=shift; + $i=~s/'/'"'"'/g; + return "'$i'"; +} -# alias expansion and command stemming -my $action=shift @ARGV; -if (! exists $knownactions{$action}) { - if (exists $alias{$action}) { - $action=$alias{$action}; +# Runs a shell command using a supplied function. +# The lib will be included in the shell command line, and any params +# will be available in the shell as $1, $2, etc. +my $lastlib; +sub runsh { + my ($action, $topdir, $subdir, $command, $params, $runner) = @_; + + # optimisation: avoid running the shell for true and false + if ($command =~ /^\s*true\s*$/) { + $?=0; + return 0; } - else { - my @matches = grep { /^\Q$action\E/ } - keys %knownactions, keys %alias; - if (@matches == 1) { - $action=$matches[0]; - } - else { - die "mr: ambiguous action \"$action\" (matches @matches)\n"; - } + elsif ($command =~ /^\s*false\s*$/) { + $?=0; + return 1; + } + + my $quotedparams=join(" ", (map { shellquote($_) } @$params)); + my $lib=exists $config{$topdir}{$subdir}{lib} ? + $config{$topdir}{$subdir}{lib}."\n" : ""; + if ($verbose && (! defined $lastlib || $lastlib ne $lib)) { + print "mr library now: >>$lib<<\n"; + $lastlib=$lib; } + my $shellcode="set -e;".$lib. + "my_sh(){ $command\n }; my_sh $quotedparams"; + print "mr $action: running $action >>$command<<\n" if $verbose; + $runner->($shellcode); } -# handle being in a subdir of a repository -foreach my $topdir (sort keys %config) { - foreach my $subdir (sort keys %{$config{$topdir}}) { - if ($directory =~ /^\Q$topdir$subdir\E\//) { - $directory=$topdir.$subdir; +my %perl_cache; +sub perl { + my $id=shift; + my $s=shift; + if ($s =~ m/^perl:\s+(.*)/s) { + return $perl_cache{$1} if exists $perl_cache{$1}; + my $sub=eval "sub {$1}"; + if (! defined $sub) { + print STDERR "mr: bad perl code in $id: $@\n"; } + return $perl_cache{$1} = $sub; } + return undef; } -my (@failed, @successful, @skipped); -my $first=1; -foreach my $topdir (sort keys %config) { - foreach my $subdir (sort keys %{$config{$topdir}}) { - next if $subdir eq 'default'; - - my $dir=$topdir.$subdir; +my %vcs; +sub vcs_test { + my ($action, $dir, $topdir, $subdir) = @_; - if (defined $directory && - $dir ne $directory && - $dir !~ /^\Q$directory\E\//) { - print "mr $action: $dir skipped per -d parameter ($directory)\n" if $verbose; - push @skipped, $dir; - next; + if (exists $vcs{$dir}) { + return $vcs{$dir}; + } + + my $test=""; + my %perltest; + foreach my $vcs_test ( + sort { + length $a <=> length $b + || + $a cmp $b + } grep { /_test$/ } keys %{$config{$topdir}{$subdir}}) { + my ($vcs)=$vcs_test =~ /(.*)_test/; + my $p=perl($vcs_test, $config{$topdir}{$subdir}{$vcs_test}); + if (defined $p) { + $perltest{$vcs}=$p; + } + else { + $test="my_$vcs_test() {\n$config{$topdir}{$subdir}{$vcs_test}\n}\n".$test; + $test.="if my_$vcs_test; then echo $vcs; fi\n"; + } + } + + my @vcs; + foreach my $vcs (keys %perltest) { + if ($perltest{$vcs}->()) { + push @vcs, $vcs; } + } + + push @vcs, split(/\n/, + runsh("vcs test", $topdir, $subdir, $test, [], sub { + my $sh=shift; + my $ret=`$sh`; + return $ret; + })) if length $test; + if (@vcs > 1) { + print STDERR "mr $action: found multiple possible repository types (@vcs) for ".fulldir($topdir, $subdir)."\n"; + return undef; + } + if (! @vcs) { + return $vcs{$dir}=undef; + } + else { + return $vcs{$dir}=$vcs[0]; + } +} + +sub findcommand { + my ($action, $dir, $topdir, $subdir, $is_checkout) = @_; + + if (exists $config{$topdir}{$subdir}{$action}) { + return $config{$topdir}{$subdir}{$action}; + } - print "\n" unless $first; - $first=0; + if ($is_checkout) { + return undef; + } - action($action, $dir, $topdir, $subdir); + my $vcs=vcs_test(@_); + if (defined $vcs && + exists $config{$topdir}{$subdir}{$vcs."_".$action}) { + return $config{$topdir}{$subdir}{$vcs."_".$action}; + } + else { + return undef; } } +sub fulldir { + my ($topdir, $subdir) = @_; + return $subdir =~ /^\// ? $subdir : $topdir.$subdir; +} + sub action { - my ($action, $dir, $topdir, $subdir) = @_; + my ($action, $dir, $topdir, $subdir, $force_checkout) = @_; + my $fulldir=fulldir($topdir, $subdir); + my $checkout_dir; + + $ENV{MR_CONFIG}=$configfiles{$topdir}; + my $is_checkout=($action eq 'checkout'); + my $is_update=($action =~ /update/); + + ($ENV{MR_REPO}=$dir) =~ s!/$!!; + $ENV{MR_ACTION}=$action; - my $lib= exists $config{$topdir}{$subdir}{lib} ? - $config{$topdir}{$subdir}{lib} : ""; + foreach my $testname ("skip", "deleted") { + next if $force && $testname eq "skip"; + + my $testcommand=findcommand($testname, $dir, $topdir, $subdir, $is_checkout); + + if (defined $testcommand) { + my $ret=runsh "$testname test", $topdir, $subdir, + $testcommand, [$action], + sub { system(shift()) }; + if ($ret != 0) { + if (($? & 127) == 2) { + print STDERR "mr $action: interrupted\n"; + return ABORT; + } + elsif ($? & 127) { + print STDERR "mr $action: $testname test received signal ".($? & 127)."\n"; + return ABORT; + } + } + if ($ret >> 8 == 0) { + if ($testname eq "deleted") { + if (-d $dir) { + print STDERR "mr error: $dir should be deleted yet still exists\n"; + return FAILED; + } + } + print "mr $action: skip $dir skipped\n" if $verbose; + return SKIPPED; + } + } + } - if ($action eq 'checkout') { - if (-d $dir) { - print "mr $action: $dir already exists, skipping checkout\n" if $verbose; - push @skipped, $dir; - return; + if ($is_checkout) { + $checkout_dir=$dir; + if (! $force_checkout) { + if (-d $dir) { + print "mr $action: $dir already exists, skipping checkout\n" if $verbose; + return SKIPPED; + } + + $dir=~s/^(.*)\/[^\/]+\/?$/$1/; } - $dir=~s/^(.*)\/[^\/]+\/?$/$1/; } - elsif ($action eq 'update') { + elsif ($is_update) { if (! -d $dir) { return action("checkout", $dir, $topdir, $subdir); } } - - if (! chdir($dir)) { - print STDERR "mr $action: failed to chdir to $dir: $!\n"; - push @skipped, $dir; - } - if (exists $config{$topdir}{$subdir}{skip}) { - my $ret=system($lib.$config{$topdir}{$subdir}{skip}); - if ($ret >> 8 == 0) { - print "mr $action: $dir skipped per config file\n" if $verbose; - push @skipped, $dir; - return; - } + my $command=findcommand($action, $dir, $topdir, $subdir, $is_checkout); + + if ($is_checkout && ! -d $dir) { + print "mr $action: creating parent directory $dir\n" if $verbose; + system("mkdir", "-p", $dir); } - if (! exists $config{$topdir}{$subdir}{$action}) { - print STDERR "mr $action: no defined $action command for $topdir$subdir, skipping\n"; - push @skipped, $dir; + if (! $no_chdir && ! chdir($dir)) { + print STDERR "mr $action: failed to chdir to $dir: $!\n"; + return FAILED; + } + elsif (! defined $command) { + my $vcs=vcs_test(@_); + if (! defined $vcs) { + print STDERR "mr $action: unknown repository type and no defined $action command for $fulldir\n"; + return FAILED; + } + else { + print STDERR "mr $action: no defined action for $vcs repository $fulldir, skipping\n"; + return SKIPPED; + } } else { - print "mr $action: in $dir\n"; - my $command="set -e; ".$lib. - "my_action(){ $config{$topdir}{$subdir}{$action} ; }; my_action ". - join(" ", map { s/\//\/\//g; s/"/\"/g; '"'.$_.'"' } @ARGV); - my $ret=system($command); + my $actionmsg; + if (! $no_chdir) { + $actionmsg="mr $action: $fulldir"; + } + else { + my $s=$directory; + $s=~s/^\Q$fulldir\E\/?//; + $actionmsg="mr $action: $fulldir (in subdir $s)"; + } + print "$actionmsg\n" unless $quiet; + + my $hookret=hook("pre_$action", $topdir, $subdir); + return $hookret if $hookret != OK; + + my $ret=runsh $action, $topdir, $subdir, + $command, \@ARGV, sub { + my $sh=shift; + if ($quiet) { + my $output = qx/$sh 2>&1/; + my $ret = $?; + if ($ret != 0) { + print "$actionmsg\n"; + print STDERR $output; + } + return $ret; + } + else { + system($sh); + } + }; if ($ret != 0) { - print STDERR "mr $action: failed to run: $command\n" if $verbose; - push @failed, $topdir.$subdir; + if (($? & 127) == 2) { + print STDERR "mr $action: interrupted\n"; + return ABORT; + } + elsif ($? & 127) { + print STDERR "mr $action: received signal ".($? & 127)."\n"; + return ABORT; + } + print STDERR "mr $action: failed ($ret)\n" if $verbose; if ($ret >> 8 != 0) { print STDERR "mr $action: command failed\n"; + if (-e "$ENV{HOME}/.mrlog" && $action ne 'remember') { + # recreate original command line to + # remember, and avoid recursing + my @orig=@ARGV; + @ARGV=('-n', $action, @orig); + action("remember", $dir, $topdir, $subdir); + @ARGV=@orig; + } } elsif ($ret != 0) { print STDERR "mr $action: command died ($ret)\n"; } + return FAILED; } else { - push @successful, $dir; + if ($is_checkout && ! -d $dir) { + print STDERR "mr $action: $dir missing after checkout\n";; + return FAILED; + } + + my $ret=hook("post_$action", $topdir, $subdir); + return $ret if $ret != OK; + + if ($is_checkout || $is_update) { + if ($is_checkout && ! $no_chdir) { + if (! chdir($checkout_dir)) { + print STDERR "mr $action: failed to chdir to $checkout_dir: $!\n"; + return FAILED; + } + } + my $ret=hook("fixups", $topdir, $subdir); + return $ret if $ret != OK; + } + + return OK; + } + } +} + +sub hook { + my ($hook, $topdir, $subdir) = @_; + + my $command=$config{$topdir}{$subdir}{$hook}; + return OK unless defined $command; + my $ret=runsh $hook, $topdir, $subdir, $command, [], sub { + my $sh=shift; + if ($quiet) { + my $output = qx/$sh 2>&1/; + my $ret = $?; + if ($ret != 0) { + print STDERR $output; + } + return $ret; + } + else { + system($sh); + } + }; + if ($ret != 0) { + if (($? & 127) == 2) { + print STDERR "mr $hook: interrupted\n"; + return ABORT; + } + elsif ($? & 127) { + print STDERR "mr $hook: received signal ".($? & 127)."\n"; + return ABORT; + } + else { + return FAILED; + } + } + + return OK; +} + +# run actions on multiple repos, in parallel +sub mrs { + my $action=shift; + my @repos=@_; + + $| = 1; + my @active; + my @fhs; + my @out; + my $running=0; + while (@fhs or @repos) { + while ((!$jobs || $running < $jobs) && @repos) { + $running++; + my $repo = shift @repos; + pipe(my $outfh, CHILD_STDOUT); + pipe(my $errfh, CHILD_STDERR); + my $pid; + unless ($pid = fork) { + die "mr $action: cannot fork: $!" unless defined $pid; + open(STDOUT, ">&CHILD_STDOUT") || die "mr $action cannot reopen stdout: $!"; + open(STDERR, ">&CHILD_STDERR") || die "mr $action cannot reopen stderr: $!"; + close CHILD_STDOUT; + close CHILD_STDERR; + close $outfh; + close $errfh; + exit action($action, @$repo); + } + close CHILD_STDOUT; + close CHILD_STDERR; + push @active, [$pid, $repo]; + push @fhs, [$outfh, $errfh]; + push @out, ['', '']; + } + my ($rin, $rout) = ('',''); + my $nfound; + foreach my $fh (@fhs) { + next unless defined $fh; + vec($rin, fileno($fh->[0]), 1) = 1 if defined $fh->[0]; + vec($rin, fileno($fh->[1]), 1) = 1 if defined $fh->[1]; + } + $nfound = select($rout=$rin, undef, undef, 1); + foreach my $channel (0, 1) { + foreach my $i (0..$#fhs) { + next unless defined $fhs[$i]; + my $fh = $fhs[$i][$channel]; + next unless defined $fh; + if (vec($rout, fileno($fh), 1) == 1) { + my $r = ''; + if (sysread($fh, $r, 1024) == 0) { + close($fh); + $fhs[$i][$channel] = undef; + if (! defined $fhs[$i][0] && + ! defined $fhs[$i][1]) { + waitpid($active[$i][0], 0); + print STDOUT $out[$i][0]; + print STDERR $out[$i][1]; + record($active[$i][1], $? >> 8); + splice(@fhs, $i, 1); + splice(@active, $i, 1); + splice(@out, $i, 1); + $running--; + } + } + $out[$i][$channel] .= $r; + } + } + } + } +} + +sub record { + my $dir=shift()->[0]; + my $ret=shift; + + if ($ret == OK) { + push @ok, $dir; + print "\n" unless $quiet; + } + elsif ($ret == FAILED) { + if ($interactive) { + chdir($dir) unless $no_chdir; + print STDERR "mr: Starting interactive shell. Exit shell to continue.\n"; + system((getpwuid($<))[8], "-i"); + } + push @failed, $dir; + print "\n" unless $quiet; + } + elsif ($ret == SKIPPED) { + push @skipped, $dir; + } + elsif ($ret == ABORT) { + exit 1; + } + else { + die "unknown exit status $ret"; + } +} + +sub showstats { + my $action=shift; + if (! @ok && ! @failed && ! @skipped) { + die "mr $action: no repositories found to work on\n"; + } + print "mr $action: finished (".join("; ", + showstat($#ok+1, "ok", "ok"), + showstat($#failed+1, "failed", "failed"), + showstat($#skipped+1, "skipped", "skipped"), + ).")\n" unless $quiet; + if ($stats) { + if (@skipped) { + print "mr $action: (skipped: ".join(" ", @skipped).")\n" unless $quiet; + } + if (@failed) { + print STDERR "mr $action: (failed: ".join(" ", @failed).")\n"; } } } @@ -295,145 +1020,1113 @@ sub showstat { } return; } -print "\nmr $action: finished (".join("; ", - showstat($#successful+1, "successful", "successful"), - showstat($#failed+1, "failed", "failed"), - showstat($#skipped+1, "skipped", "skipped"), -).")\n"; -if (@failed) { - exit 1; + +# an ordered list of repos +sub repolist { + my @list; + foreach my $topdir (sort keys %config) { + foreach my $subdir (sort keys %{$config{$topdir}}) { + push @list, { + topdir => $topdir, + subdir => $subdir, + order => $config{$topdir}{$subdir}{order}, + }; + } + } + return sort { + $a->{order} <=> $b->{order} + || + $a->{topdir} cmp $b->{topdir} + || + $a->{subdir} cmp $b->{subdir} + } @list; +} + +sub repodir { + my $repo=shift; + my $topdir=$repo->{topdir}; + my $subdir=$repo->{subdir}; + my $ret=($subdir =~/^\//) ? $subdir : $topdir.$subdir; + $ret=~s/\/\.$//; + return $ret; +} + +# Figure out which repos to act on. Returns a list of array refs +# in the format: +# +# [ "$full_repo_path/", "$mr_config_path/", $section_header ] +sub selectrepos { + my @repos; + foreach my $repo (repolist()) { + my $topdir=$repo->{topdir}; + my $subdir=$repo->{subdir}; + + next if $subdir eq 'DEFAULT'; + my $dir=repodir($repo); + my $d=$directory; + $dir.="/" unless $dir=~/\/$/; + $d.="/" unless $d=~/\/$/; + next if $dir ne $d && $dir !~ /^\Q$d\E/; + if (defined $max_depth) { + my @a=split('/', $dir); + my @b=split('/', $d); + do { } while (@a && @b && shift(@a) eq shift(@b)); + next if @a > $max_depth || @b > $max_depth; + } + push @repos, [$dir, $topdir, $subdir]; + } + if (! @repos) { + # fallback to find a leaf repo + foreach my $repo (reverse repolist()) { + my $topdir=$repo->{topdir}; + my $subdir=$repo->{subdir}; + + next if $subdir eq 'DEFAULT'; + my $dir=repodir($repo); + my $d=$directory; + $dir.="/" unless $dir=~/\/$/; + $d.="/" unless $d=~/\/$/; + if ($d=~/^\Q$dir\E/) { + push @repos, [$dir, $topdir, $subdir]; + last; + } + } + $no_chdir=1; + } + return @repos; +} + +sub expandenv { + my $val=shift; + + + if ($val=~/\$/) { + $val=`echo "$val"`; + chomp $val; + } + + return $val; +} + +my %trusted; +sub is_trusted_config { + my $config=shift; # must be abs_pathed already + + # We always trust ~/.mrconfig. + return 1 if $config eq abs_path($HOME_MR_CONFIG); + + return 1 if $trust_all; + + my $trustfile=$ENV{HOME}."/.mrtrust"; + + if (! %trusted) { + $trusted{$HOME_MR_CONFIG}=1; + if (open (TRUST, "<", $trustfile)) { + while () { + chomp; + s/^~\//$ENV{HOME}\//; + $trusted{abs_path($_)}=1; + } + close TRUST; + } + } + + return $trusted{$config}; } -elsif (! @successful && @skipped) { - exit 1; + + +sub is_trusted_repo { + my $repo=shift; + + # Tightly limit what is allowed in a repo name. + # No ../, no absolute paths, and no unusual filenames + # that might try to escape to the shell. + return $repo =~ /^[-_.+\/A-Za-z0-9]+$/ && + $repo !~ /\.\./ && $repo !~ /^\//; +} + +sub is_trusted_checkout { + my $command=shift; + + # To determine if the command is safe, compare it with the + # *_trusted_checkout config settings. Those settings are + # templates for allowed commands, so make sure that each word + # of the command matches the corresponding word of the template. + + my @words; + foreach my $word (split(' ', $command)) { + # strip quoting + if ($word=~/^'(.*)'$/) { + $word=$1; + } + elsif ($word=~/^"(.*)"$/) { + $word=$1; + } + + push @words, $word; + } + + foreach my $key (grep { /_trusted_checkout$/ } + keys %{$config{''}{DEFAULT}}) { + my @twords=split(' ', $config{''}{DEFAULT}{$key}); + next if @words > @twords; + + my $match=1; + my $url; + for (my $c=0; $c < @twords && $match; $c++) { + if ($twords[$c] eq '$url') { + # Match all the typical characters found in + # urls, plus @ which svn can use. Note + # that the "url" might also be a local + # directory. + $match=( + defined $words[$c] && + $words[$c] =~ /^[-_.+:@\/A-Za-z0-9]+$/ + ); + $url=$words[$c]; + } + elsif ($twords[$c] eq '$repo') { + # If a repo is not specified, assume it + # will be the last path component of the + # url, or something derived from it, and + # check that. + if (! defined $words[$c] && defined $url) { + ($words[$c])=$url=~/\/([^\/]+)\/?$/; + } + + $match=( + defined $words[$c] && + is_trusted_repo($words[$c]) + ); + } + elsif (defined $words[$c] && $words[$c]=~/^($twords[$c])$/) { + $match=1; + } + else { + $match=0; + } + } + return 1 if $match; + } + + return 0; } -exit 0; my %loaded; sub loadconfig { my $f=shift; + my $dir=shift; + my $bootstrap_url=shift; my @toload; my $in; - my $dir; + my $trusted; if (ref $f eq 'GLOB') { - $in=$f; $dir=""; + $in=$f; + $trusted=1; } else { - # $f might be a symlink my $absf=abs_path($f); if ($loaded{$absf}) { return; } $loaded{$absf}=1; - print "mr: loading config $f\n" if $verbose; - open($in, "<", $f) || die "mr: open $f: $!\n"; - ($dir)=$f=~/^(.*\/)[^\/]+$/; + $trusted=is_trusted_config($absf); + if (! defined $dir) { - $dir="."; + ($dir)=$f=~/^(.*\/)[^\/]+$/; + if (! defined $dir) { + $dir="."; + } } + $dir=abs_path($dir)."/"; + + if (! exists $configfiles{$dir}) { + $configfiles{$dir}=$f; + } # copy in defaults from first parent my $parent=$dir; - while ($parent=~s/^(.*)\/[^\/]+\/?$/$1/) { + while ($parent=~s/^(.*\/)[^\/]+\/?$/$1/) { + if ($parent eq '/') { + $parent=""; + } if (exists $config{$parent} && - exists $config{$parent}{default}) { - $config{$dir}{default}={ %{$config{$parent}{default}} }; + exists $config{$parent}{DEFAULT}) { + $config{$dir}{DEFAULT}={ %{$config{$parent}{DEFAULT}} }; last; } } + + if (! -e $f) { + return; + } + + print "mr: loading config $f\n" if $verbose; + open($in, "<", $f) || die "mr: open $f: $!\n"; } + my @lines=<$in>; + close $in unless ref $f eq 'GLOB'; my $section; - while (<$in>) { - chomp; + + # Keep track of the current line in the config file; + # when a file is included track the current line from the include. + my $lineno=0; + my $included=undef; + + my $line; + my $nextline = sub { + if ($included) { + $included--; + } + else { + $included=undef; + $lineno++; + } + $line=shift @lines; + chomp $line; + return $line; + }; + my $lineerror = sub { + my $msg=shift; + if (defined $included) { + die "mr: $msg at $f line $lineno, included line: $line\n"; + } + else { + die "mr: $msg at $f line $lineno\n"; + } + }; + my $trusterror = sub { + my $msg=shift; + + if (defined $bootstrap_url) { + die "mr: $msg in untrusted $bootstrap_url line $lineno\n". + "(To trust this url, --trust-all can be used; but please use caution;\n". + "this can allow arbitrary code execution!)\n"; + } + else { + die "mr: $msg in untrusted $f line $lineno\n". + "(To trust this file, list it in ~/.mrtrust.)\n"; + } + }; + + while (@lines) { + $_=$nextline->(); + + if (! $trusted && /[[:cntrl:]]/) { + $trusterror->("illegal control character"); + } + next if /^\s*\#/ || /^\s*$/; - if (/^\s*\[([^\]]*)\]\s*$/) { + if (/^\[([^\]]*)\]\s*$/) { $section=$1; + + if (! $trusted) { + if (! is_trusted_repo($section) || + $section eq 'ALIAS' || + $section eq 'DEFAULT') { + $trusterror->("illegal section \"[$section]\""); + } + } + $section=expandenv($section) if $trusted; + if ($section ne 'ALIAS' && + ! exists $config{$dir}{$section} && + exists $config{$dir}{DEFAULT}) { + # copy in defaults + $config{$dir}{$section}={ %{$config{$dir}{DEFAULT}} }; + } } - elsif (/^\s*(\w+)\s*=\s*(.*)/) { + elsif (/^(\w+)\s*=\s*(.*)/) { my $parameter=$1; my $value=$2; - # continuation line - while ($value=~/(.*)\\$/) { - $value=$1.<$in>; + # continued value + while (@lines && $lines[0]=~/^\s(.+)/) { + $value.="\n$1"; chomp $value; + $nextline->(); } - if (! defined $section) { - die "$f line $.: parameter ($parameter) not in section\n"; + if (! $trusted) { + # Untrusted files can only contain a few + # settings in specific known-safe formats. + if ($parameter eq 'checkout') { + if (! is_trusted_checkout($value)) { + $trusterror->("illegal checkout command \"$value\""); + } + } + elsif ($parameter eq 'order') { + # not interpreted as a command, so + # safe. + } + elsif ($value eq 'true' || $value eq 'false') { + # skip=true , deleted=true etc are + # safe. + } + else { + $trusterror->("illegal setting \"$parameter=$value\""); + } } - if ($section ne 'alias' && - ! exists $config{$dir}{$section} && - exists $config{$dir}{default}) { - # copy in defaults - $config{$dir}{$section}={ %{$config{$dir}{default}} }; + + if ($parameter eq "include") { + print "mr: including output of \"$value\"\n" if $verbose; + my @inc=`$value`; + if ($?) { + print STDERR "mr: include command exited nonzero ($?)\n"; + } + $included += @inc; + unshift @lines, @inc; + next; + } + + if (! defined $section) { + $lineerror->("parameter ($parameter) not in section"); } - if ($section eq 'alias') { + if ($section eq 'ALIAS') { $alias{$parameter}=$value; } - elsif ($parameter eq 'lib') { - $config{$dir}{$section}{lib}.=$value." ; "; + elsif ($parameter eq 'lib' or $parameter =~ s/_append$//) { + $config{$dir}{$section}{$parameter}.="\n".$value."\n"; } else { $config{$dir}{$section}{$parameter}=$value; - $knownactions{$parameter}=1; + if ($parameter =~ /.*_(.*)/) { + $knownactions{$1}=1; + } + else { + $knownactions{$parameter}=1; + } if ($parameter eq 'chain' && - length $dir && $section ne "default" && - -e $dir.$section."/.mrconfig" && - system($value) >> 8 == 0) { - push @toload, $dir.$section."/.mrconfig"; + length $dir && $section ne "DEFAULT") { + my $chaindir="$section"; + if ($chaindir !~ m!^/!) { + $chaindir=$dir.$chaindir; + } + if (-e "$chaindir/.mrconfig") { + my $ret=system($value); + if ($ret != 0) { + if (($? & 127) == 2) { + print STDERR "mr: chain test interrupted\n"; + exit 2; + } + elsif ($? & 127) { + print STDERR "mr: chain test received signal ".($? & 127)."\n"; + } + } + else { + push @toload, ["$chaindir/.mrconfig", $chaindir]; + } + } } } } else { - die "$f line $.: parse error\n"; + $lineerror->("parse error"); } } - close $in; - foreach (@toload) { - loadconfig($_); + foreach my $c (@toload) { + loadconfig(@$c); } } +sub startingconfig { + %alias=%config=%configfiles=%knownactions=%loaded=(); + my $datapos=tell(DATA); + loadconfig(\*DATA); + seek(DATA,$datapos,0); # rewind +} + +sub modifyconfig { + my $f=shift; + # the section to modify or add + my $targetsection=shift; + # fields to change in the section + # To remove a field, set its value to "". + my %changefields=@_; + + my @lines; + my @out; + + if (-e $f) { + open(my $in, "<", $f) || die "mr: open $f: $!\n"; + @lines=<$in>; + close $in; + } + + my $formatfield=sub { + my $field=shift; + my @value=split(/\n/, shift); + + return "$field = ".shift(@value)."\n". + join("", map { "\t$_\n" } @value); + }; + my $addfields=sub { + my @blanks; + while ($out[$#out] =~ /^\s*$/) { + unshift @blanks, pop @out; + } + foreach my $field (sort keys %changefields) { + if (length $changefields{$field}) { + push @out, "$field = $changefields{$field}\n"; + delete $changefields{$field}; + } + } + push @out, @blanks; + }; + + my $section; + while (@lines) { + $_=shift(@lines); + + if (/^\s*\#/ || /^\s*$/) { + push @out, $_; + } + elsif (/^\[([^\]]*)\]\s*$/) { + if (defined $section && + $section eq $targetsection) { + $addfields->(); + } + + $section=expandenv($1); + + push @out, $_; + } + elsif (/^(\w+)\s*=\s(.*)/) { + my $parameter=$1; + my $value=$2; + + # continued value + while (@lines && $lines[0]=~/^\s(.+)/) { + shift(@lines); + $value.="\n$1"; + chomp $value; + } + + if ($section eq $targetsection) { + if (exists $changefields{$parameter}) { + if (length $changefields{$parameter}) { + $value=$changefields{$parameter}; + } + delete $changefields{$parameter}; + } + } + + push @out, $formatfield->($parameter, $value); + } + } + + if (defined $section && + $section eq $targetsection) { + $addfields->(); + } + elsif (%changefields) { + push @out, "\n[$targetsection]\n"; + foreach my $field (sort keys %changefields) { + if (length $changefields{$field}) { + push @out, $formatfield->($field, $changefields{$field}); + } + } + } + + open(my $out, ">", $f) || die "mr: write $f: $!\n"; + print $out @out; + close $out; +} + +sub dispatch { + my $action=shift; + + # actions that do not operate on all repos + if ($action eq 'help') { + help(@ARGV); + } + elsif ($action eq 'config') { + config(@ARGV); + } + elsif ($action eq 'register') { + register(@ARGV); + } + elsif ($action eq 'bootstrap') { + bootstrap(); + } + elsif ($action eq 'remember' || + $action eq 'offline' || + $action eq 'online') { + my @repos=selectrepos; + action($action, @{$repos[0]}) if @repos; + exit 0; + } + + if (!$jobs || $jobs > 1) { + mrs($action, selectrepos()); + } + else { + foreach my $repo (selectrepos()) { + record($repo, action($action, @$repo)); + } + } +} + +sub help { + exec($config{''}{DEFAULT}{help}) || die "exec: $!"; +} + +sub config { + if (@_ < 2) { + die "mr config: not enough parameters\n"; + } + my $section=shift; + if ($section=~/^\//) { + # try to convert to a path relative to the config file + my ($dir)=$ENV{MR_CONFIG}=~/^(.*\/)[^\/]+$/; + $dir=abs_path($dir); + $dir.="/" unless $dir=~/\/$/; + if ($section=~/^\Q$dir\E(.*)/) { + $section=$1; + } + } + my %changefields; + foreach (@_) { + if (/^([^=]+)=(.*)$/) { + $changefields{$1}=$2; + } + else { + my $found=0; + foreach my $topdir (sort keys %config) { + if (exists $config{$topdir}{$section} && + exists $config{$topdir}{$section}{$_}) { + print $config{$topdir}{$section}{$_}."\n"; + $found=1; + last if $section eq 'DEFAULT'; + } + } + if (! $found) { + die "mr config: $section $_ not set\n"; + } + } + } + modifyconfig($ENV{MR_CONFIG}, $section, %changefields) if %changefields; + exit 0; +} + +sub register { + if ($config_overridden) { + # Find the directory that the specified config file is + # located in. + ($directory)=abs_path($ENV{MR_CONFIG})=~/^(.*\/)[^\/]+$/; + } + else { + # Find the closest known mrconfig file to the current + # directory. + $directory.="/" unless $directory=~/\/$/; + my $foundconfig=0; + foreach my $topdir (reverse sort keys %config) { + next unless length $topdir; + if ($directory=~/^\Q$topdir\E/) { + $ENV{MR_CONFIG}=$configfiles{$topdir}; + $directory=$topdir; + $foundconfig=1; + last; + } + } + if (! $foundconfig) { + $directory=""; # no config file, use builtin + } + } + if (@ARGV) { + my $subdir=shift @ARGV; + if (! chdir($subdir)) { + print STDERR "mr register: failed to chdir to $subdir: $!\n"; + } + } + + $ENV{MR_REPO}=getcwd(); + my $command=findcommand("register", $ENV{MR_REPO}, $directory, 'DEFAULT', 0); + if (! defined $command) { + die "mr register: unknown repository type\n"; + } + + $ENV{MR_REPO}=~s/.*\/(.*)/$1/; + $command="set -e; ".$config{$directory}{DEFAULT}{lib}."\n". + "my_action(){ $command\n }; my_action ". + join(" ", map { s/\\/\\\\/g; s/"/\"/g; '"'.$_.'"' } @ARGV); + print "mr register: running >>$command<<\n" if $verbose; + exec($command) || die "exec: $!"; +} + +sub bootstrap { + my $url=shift @ARGV; + my $dir=shift @ARGV || "."; + + if (! defined $url || ! length $url) { + die "mr: bootstrap requires url\n"; + } + + # Download the config file to a temporary location. + eval q{use File::Temp}; + die $@ if $@; + my $tmpconfig=File::Temp->new(); + my @downloader; + if ($url =~ m!^ssh://(.*)!) { + @downloader = ("scp", $1, $tmpconfig); + } + else { + @downloader = ("curl", "-A", "mr", "-L", "-s", $url, "-o", $tmpconfig); + push(@downloader, "-k") if $insecure; + } + 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; + + if (! -e $dir) { + system("mkdir", "-p", $dir); + } + chdir($dir) || die "chdir $dir: $!"; + + # Special case to handle checkout of the "." repo, which + # would normally be skipped. + my $topdir=abs_path(".")."/"; + my @repo=($topdir, $topdir, "."); + loadconfig($tmpconfig, $topdir, $url); + 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"; + } + else { + eval q{use File::Copy}; + die $@ if $@; + move($tmpconfig, ".mrconfig") || die "rename: $!"; + } + + # Reload the config file (in case we got a different version) + # and checkout everything else. + startingconfig(); + loadconfig(".mrconfig"); + dispatch("checkout"); + @skipped=grep { abs_path($_) ne abs_path($topdir) } @skipped; + showstats("bootstrap"); + exitstats(); +} + +# alias expansion and command stemming +sub expandaction { + my $action=shift; + if (exists $alias{$action}) { + $action=$alias{$action}; + } + if (! exists $knownactions{$action}) { + my @matches = grep { /^\Q$action\E/ } + keys %knownactions, keys %alias; + if (@matches == 1) { + $action=$matches[0]; + } + elsif (@matches == 0) { + die "mr: unknown action \"$action\" (known actions: ". + join(", ", sort keys %knownactions).")\n"; + } + else { + die "mr: ambiguous action \"$action\" (matches: ". + join(", ", @matches).")\n"; + } + } + return $action; +} + +sub find_mrconfig { + my $dir=getcwd(); + while (length $dir) { + if (-e "$dir/.mrconfig") { + return "$dir/.mrconfig"; + } + $dir=~s/\/[^\/]*$//; + } + return $HOME_MR_CONFIG; +} + +sub getopts { + my @saved=@ARGV; + Getopt::Long::Configure("bundling", "no_permute"); + my $result=GetOptions( + "d|directory=s" => sub { $directory=abs_path($_[1]) }, + "c|config=s" => sub { $ENV{MR_CONFIG}=$_[1]; $config_overridden=1 }, + "p|path" => sub { }, # now default, ignore + "f|force" => \$force, + "v|verbose" => \$verbose, + "q|quiet" => \$quiet, + "s|stats" => \$stats, + "k|insecure" => \$insecure, + "i|interactive" => \$interactive, + "n|no-recurse:i" => \$max_depth, + "j|jobs:i" => \$jobs, + "t|trust-all" => \$trust_all, + ); + if (! $result || @ARGV < 1) { + die("Usage: mr [options] action [params ...]\n". + "(Use mr help for man page.)\n"); + } + + $ENV{MR_SWITCHES}=""; + foreach my $option (@saved) { + last if $option eq $ARGV[0]; + $ENV{MR_SWITCHES}.="$option "; + } +} + +sub init { + $SIG{INT}=sub { + print STDERR "mr: interrupted\n"; + exit 2; + }; + + # This can happen if it's run in a directory that was removed + # or other strangeness. + if (! defined $directory) { + die("mr: failed to determine working directory\n"); + } + # Make sure MR_CONFIG is an absolute path, but don't use abs_path since + # the config file might be a symlink to elsewhere, and the directory it's + # in is significant. + if ($ENV{MR_CONFIG} !~ /^\//) { + $ENV{MR_CONFIG}=getcwd()."/".$ENV{MR_CONFIG}; + } + # Try to set MR_PATH to the path to the program. + eval { + use FindBin qw($Bin $Script); + $ENV{MR_PATH}=$Bin."/".$Script; + }; +} + +sub exitstats { + if (@failed) { + exit 1; + } + else { + exit 0; + } +} + +sub main { + getopts(); + init(); + + startingconfig(); + loadconfig($HOME_MR_CONFIG); + loadconfig($ENV{MR_CONFIG}); + #use Data::Dumper; print Dumper(\%config); + + my $action=expandaction(shift @ARGV); + dispatch($action); + + showstats($action); + exitstats(); +} + # Finally, some useful actions that mr knows about by default. # These can be overridden in ~/.mrconfig. __DATA__ -[alias] - co = checkout - ci = commit -[default] -lib = \ - error() { \ - echo "mr: $@" >&2; \ - exit 1; \ - } -update = \ - if [ -d .svn ]; then \ - svn update "$@"; \ - elif [ -d .git ]; then \ - git pull origin master "$@"; \ - else \ - error "unknown repo type"; \ +[ALIAS] +co = checkout +ci = commit +ls = list + +[DEFAULT] +order = 10 +lib = + error() { + echo "mr: $@" >&2 + exit 1 + } + warning() { + echo "mr (warning): $@" >&2 + } + info() { + echo "mr: $@" >&2 + } + hours_since() { + if [ -z "$1" ] || [ -z "$2" ]; then + error "mr: usage: hours_since action num" + fi + for dir in .git .svn .bzr CVS .hg _darcs _FOSSIL_; do + if [ -e "$MR_REPO/$dir" ]; then + flagfile="$MR_REPO/$dir/.mr_last$1" + break + fi + done + if [ -z "$flagfile" ]; then + error "cannot determine flag filename" + fi + delta=`perl -wle 'print -f shift() ? int((-M _) * 24) : 9999' "$flagfile"` + if [ "$delta" -lt "$2" ]; then + return 1 + else + touch "$flagfile" + return 0 + fi + } + is_bzr_checkout() { + LANG=C bzr info | egrep -q '^Checkout' + } + lazy() { + if [ -d "$MR_REPO" ]; then + return 1 + else + return 0 + fi + } + +svn_test = perl: -d "$ENV{MR_REPO}/.svn" +git_test = perl: -e "$ENV{MR_REPO}/.git" +bzr_test = perl: -d "$ENV{MR_REPO}/.bzr" +cvs_test = perl: -d "$ENV{MR_REPO}/CVS" +hg_test = perl: -d "$ENV{MR_REPO}/.hg" +darcs_test = perl: -d "$ENV{MR_REPO}/_darcs" +fossil_test = perl: -f "$ENV{MR_REPO}/_FOSSIL_" +git_bare_test = perl: + -d "$ENV{MR_REPO}/refs/heads" && -d "$ENV{MR_REPO}/refs/tags" && + -d "$ENV{MR_REPO}/objects" && -f "$ENV{MR_REPO}/config" && + `GIT_CONFIG="$ENV{MR_REPO}"/config git config --get core.bare` =~ /true/ +vcsh_test = perl: + -d "$ENV{MR_REPO}/refs/heads" && -d "$ENV{MR_REPO}/refs/tags" && + -d "$ENV{MR_REPO}/objects" && -f "$ENV{MR_REPO}/config" && + `GIT_CONFIG="$ENV{MR_REPO}"/config git config --get vcsh.vcsh` =~ /true/ +veracity_test = perl: -d "$ENV{MR_REPO}/.sgdrawer" + +svn_update = svn update "$@" +git_update = git pull "$@" +bzr_update = + if is_bzr_checkout; then + bzr update "$@" + else + bzr merge --pull "$@" + fi +cvs_update = cvs -q update "$@" +hg_update = hg pull "$@"; hg update "$@" +darcs_update = darcs pull -a "$@" +fossil_update = fossil pull "$@" +vcsh_update = vcsh run "$MR_REPO" git pull "$@" +veracity_update = vv pull "$@" && vv update "$@" + +git_fetch = git fetch --all --prune --tags +git_svn_fetch = git svn fetch +darcs_fetch = darcs fetch +hg_fetch = hg pull + +svn_status = svn status "$@" +git_status = git status -s "$@" || true; git --no-pager log --branches --not --remotes --simplify-by-decoration --decorate --oneline || true +bzr_status = bzr status --short "$@"; bzr missing +cvs_status = cvs status "$@" +hg_status = hg status "$@"; hg summary --quiet | grep -v 'parent: 0:' +darcs_status = darcs whatsnew -ls "$@" || true +fossil_status = fossil changes "$@" +vcsh_status = vcsh run "$MR_REPO" git -c status.relativePaths=false status -s "$@" || true +veracity_status = vv status "$@" + +svn_commit = svn commit "$@" +git_commit = git commit -a "$@" && git push --all +bzr_commit = + if is_bzr_checkout; then + bzr commit "$@" + else + bzr commit "$@" && bzr push + fi +cvs_commit = cvs commit "$@" +hg_commit = hg commit "$@" && hg push +darcs_commit = darcs record -a "$@" && darcs push -a +fossil_commit = fossil commit "$@" +vcsh_commit = vcsh run "$MR_REPO" git commit -a "$@" && vcsh run "$MR_REPO" git push --all +veracity_commit = vv commit "$@" && vv push + +git_record = git commit -a "$@" +bzr_record = + if is_bzr_checkout; then + bzr commit --local "$@" + else + bzr commit "$@" + fi +hg_record = hg commit "$@" +darcs_record = darcs record -a "$@" +fossil_record = fossil commit "$@" +vcsh_record = vcsh run "$MR_REPO" git commit -a "$@" +veracity_record = vv commit "$@" + +svn_push = : +git_push = git push "$@" +bzr_push = bzr push "$@" +cvs_push = : +hg_push = hg push "$@" +darcs_push = darcs push -a "$@" +fossil_push = fossil push "$@" +vcsh_push = vcsh run "$MR_REPO" git push "$@" +veracity_push = vv push "$@" + +svn_diff = svn diff "$@" +git_diff = git diff "$@" +bzr_diff = bzr diff "$@" +cvs_diff = cvs -q diff "$@" +hg_diff = hg diff "$@" +darcs_diff = darcs diff -u "$@" +fossil_diff = fossil diff "$@" +vcsh_diff = vcsh run "$MR_REPO" git diff "$@" +veracity_diff = vv diff "$@" + +svn_log = svn log "$@" +git_log = git log "$@" +bzr_log = bzr log "$@" +cvs_log = cvs log "$@" +hg_log = hg log "$@" +darcs_log = darcs changes "$@" +git_bare_log = git log "$@" +fossil_log = fossil timeline "$@" +vcsh_log = vcsh run "$MR_REPO" git log "$@" +veracity_log = vv log "$@" + +hg_grep = hg grep "$@" +cvs_grep = ack-grep "$@" +svn_grep = ack-grep "$@" +git_svn_grep = git grep "$@" +git_grep = git grep "$@" +bzr_grep = ack-grep "$@" + +run = "$@" + +svn_register = + url=`LC_ALL=C svn info . | grep -i '^URL:' | cut -d ' ' -f 2` + if [ -z "$url" ]; then + error "cannot determine svn url" fi -status = \ - if [ -d .svn ]; then \ - svn status "$@"; \ - elif [ -d .git ]; then \ - git status "$@" || true; \ - else \ - error "unknown repo type"; \ + echo "Registering svn url: $url in $MR_CONFIG" + mr -c "$MR_CONFIG" config "`pwd`" checkout="svn co '$url' '$MR_REPO'" +git_register = + url="`LC_ALL=C git config --get remote.origin.url`" || true + if [ -z "$url" ]; then + error "cannot determine git url" fi -commit = \ - if [ -d .svn ]; then \ - svn commit "$@"; \ - elif [ -d .git ]; then \ - git commit -a "$@" && git push --all; \ - else \ - error "unknown repo type"; \ + echo "Registering git url: $url in $MR_CONFIG" + mr -c "$MR_CONFIG" config "`pwd`" checkout="git clone '$url' '$MR_REPO'" +bzr_register = + url="`LC_ALL=C bzr info . | egrep -i 'checkout of branch|parent branch' | awk '{print $NF}' | head -n 1`" + if [ -z "$url" ]; then + error "cannot determine bzr url" fi + echo "Registering bzr url: $url in $MR_CONFIG" + mr -c "$MR_CONFIG" config "`pwd`" checkout="bzr branch '$url' '$MR_REPO'" +cvs_register = + repo=`cat CVS/Repository` + root=`cat CVS/Root` + if [ -z "$root" ]; then + error "cannot determine cvs root" + fi + echo "Registering cvs repository $repo at root $root" + mr -c "$MR_CONFIG" config "`pwd`" checkout="cvs -d '$root' co -d '$MR_REPO' '$repo'" +hg_register = + url=`hg showconfig paths.default` + echo "Registering mercurial repo url: $url in $MR_CONFIG" + mr -c "$MR_CONFIG" config "`pwd`" checkout="hg clone '$url' '$MR_REPO'" +darcs_register = + url=`cat _darcs/prefs/defaultrepo` + echo "Registering darcs repository $url in $MR_CONFIG" + mr -c "$MR_CONFIG" config "`pwd`" checkout="darcs get '$url' '$MR_REPO'" +git_bare_register = + url="`LC_ALL=C GIT_CONFIG=config git config --get remote.origin.url`" || true + if [ -z "$url" ]; then + error "cannot determine git url" + fi + echo "Registering git url: $url in $MR_CONFIG" + mr -c "$MR_CONFIG" config "`pwd`" checkout="git clone --bare '$url' '$MR_REPO'" +vcsh_register = + url="`LC_ALL=C vcsh run "$MR_REPO" git config --get remote.origin.url`" || true + if [ -z "$url" ]; then + error "cannot determine git url" + fi + echo "Registering git url: $url in $MR_CONFIG" + mr -c "$MR_CONFIG" config "`pwd`" checkout="vcsh clone '$url' '$MR_REPO'" +fossil_register = + url=`fossil remote-url` + repo=`fossil info | grep repository | sed -e 's/repository:*.//g' -e 's/ //g'` + echo "Registering fossil repository $url in $MR_CONFIG" + mr -c "$MR_CONFIG" config "`pwd`" checkout="mkdir -p '$MR_REPO' && cd '$MR_REPO' && fossil open '$repo'" +veracity_register = + url=`vv config | grep sync_targets | sed -e 's/sync_targets:*.//g' -e 's/ //g'` + repo=`vv repo info | grep repository | sed -e 's/Current repository:*.//g' -e 's/ //g'` + echo "Registering veracity repository $url in $MR_CONFIG" + mr -c "$MR_CONFIG" config "`pwd`" checkout="mkdir -p '$MR_REPO' && cd '$MR_REPO' && vv checkout '$repo'" + +svn_trusted_checkout = svn co $url $repo +svn_alt_trusted_checkout = svn checkout $url $repo +git_trusted_checkout = git clone $url $repo +bzr_trusted_checkout = bzr checkout|clone|branch|get $url $repo +# cvs: too hard +hg_trusted_checkout = hg clone $url $repo +darcs_trusted_checkout = darcs get $url $repo +git_bare_trusted_checkout = git clone --bare $url $repo +vcsh_trusted_checkout = vcsh run "$MR_REPO" git clone $url $repo +# fossil: messy to do +veracity_trusted_checkout = vv clone $url $repo + + +help = + case `uname -s` in + SunOS) + SHOWMANFILE="man -f" + ;; + Darwin) + SHOWMANFILE="man" + ;; + *) + SHOWMANFILE="man -l" + ;; + esac + if [ ! -e "$MR_PATH" ]; then + error "cannot find program path" + fi + tmp=$(mktemp -t mr.XXXXXXXXXX) || error "mktemp failed" + trap "rm -f $tmp" exit + pod2man -c mr "$MR_PATH" > "$tmp" || error "pod2man failed" + $SHOWMANFILE "$tmp" || error "man failed" +list = true +config = +bootstrap = + +online = + if [ -s ~/.mrlog ]; then + info "running offline commands" + mv -f ~/.mrlog ~/.mrlog.old + if ! sh -e ~/.mrlog.old; then + error "offline command failed; left in ~/.mrlog.old" + fi + rm -f ~/.mrlog.old + else + info "no offline commands to run" + fi +offline = + umask 077 + touch ~/.mrlog + info "offline mode enabled" +remember = + info "remembering command: 'mr $@'" + command="mr -d '$(pwd)' $MR_SWITCHES" + for w in "$@"; do + command="$command '$w'" + done + if [ ! -e ~/.mrlog ] || ! grep -q -F "$command" ~/.mrlog; then + echo "$command" >> ~/.mrlog + fi + +ed = echo "A horse is a horse, of course, of course.." +T = echo "I pity the fool." +right = echo "Not found." + +# vim:sw=8:sts=0:ts=8:noet +# Local variables: +# indent-tabs-mode: t +# cperl-indent-level: 8 +# End: