Andrew's git / gitweb.git / lib/choose_repository.tcl
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lib / choose_repository.tclon commit git-gui: Use proper Windows shortcuts instead of bat files (51a41ac)
   1# git-gui Git repository chooser
   2# Copyright (C) 2007 Shawn Pearce
   3
   4class choose_repository {
   5
   6field top
   7field w
   8field w_body      ; # Widget holding the center content
   9field w_next      ; # Next button
  10field w_quit      ; # Quit button
  11field o_cons      ; # Console object (if active)
  12field w_types     ; # List of type buttons in clone
  13field w_recentlist ; # Listbox containing recent repositories
  14
  15field done              0 ; # Finished picking the repository?
  16field local_path       {} ; # Where this repository is locally
  17field origin_url       {} ; # Where we are cloning from
  18field origin_name  origin ; # What we shall call 'origin'
  19field clone_type hardlink ; # Type of clone to construct
  20field readtree_err        ; # Error output from read-tree (if any)
  21field sorted_recent       ; # recent repositories (sorted)
  22
  23constructor pick {} {
  24        global M1T M1B
  25
  26        make_toplevel top w
  27        wm title $top [mc "Git Gui"]
  28
  29        if {$top eq {.}} {
  30                menu $w.mbar -tearoff 0
  31                $top configure -menu $w.mbar
  32
  33                set m_repo $w.mbar.repository
  34                $w.mbar add cascade \
  35                        -label [mc Repository] \
  36                        -menu $m_repo
  37                menu $m_repo
  38
  39                if {[is_MacOSX]} {
  40                        $w.mbar add cascade -label [mc Apple] -menu .mbar.apple
  41                        menu $w.mbar.apple
  42                        $w.mbar.apple add command \
  43                                -label [mc "About %s" [appname]] \
  44                                -command do_about
  45                } else {
  46                        $w.mbar add cascade -label [mc Help] -menu $w.mbar.help
  47                        menu $w.mbar.help
  48                        $w.mbar.help add command \
  49                                -label [mc "About %s" [appname]] \
  50                                -command do_about
  51                }
  52
  53                wm protocol $top WM_DELETE_WINDOW exit
  54                bind $top <$M1B-q> exit
  55                bind $top <$M1B-Q> exit
  56                bind $top <Key-Escape> exit
  57        } else {
  58                wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
  59                bind $top <Key-Escape> [list destroy $top]
  60                set m_repo {}
  61        }
  62
  63        pack [git_logo $w.git_logo] -side left -fill y -padx 10 -pady 10
  64
  65        set w_body $w.body
  66        set opts $w_body.options
  67        frame $w_body
  68        text $opts \
  69                -cursor $::cursor_ptr \
  70                -relief flat \
  71                -background [$w_body cget -background] \
  72                -wrap none \
  73                -spacing1 5 \
  74                -width 50 \
  75                -height 3
  76        pack $opts -anchor w -fill x
  77
  78        $opts tag conf link_new -foreground blue -underline 1
  79        $opts tag bind link_new <1> [cb _next new]
  80        $opts insert end [mc "Create New Repository"] link_new
  81        $opts insert end "\n"
  82        if {$m_repo ne {}} {
  83                $m_repo add command \
  84                        -command [cb _next new] \
  85                        -accelerator $M1T-N \
  86                        -label [mc "New..."]
  87                bind $top <$M1B-n> [cb _next new]
  88                bind $top <$M1B-N> [cb _next new]
  89        }
  90
  91        $opts tag conf link_clone -foreground blue -underline 1
  92        $opts tag bind link_clone <1> [cb _next clone]
  93        $opts insert end [mc "Clone Existing Repository"] link_clone
  94        $opts insert end "\n"
  95        if {$m_repo ne {}} {
  96                $m_repo add command \
  97                        -command [cb _next clone] \
  98                        -accelerator $M1T-C \
  99                        -label [mc "Clone..."]
 100                bind $top <$M1B-c> [cb _next clone]
 101                bind $top <$M1B-C> [cb _next clone]
 102        }
 103
 104        $opts tag conf link_open -foreground blue -underline 1
 105        $opts tag bind link_open <1> [cb _next open]
 106        $opts insert end [mc "Open Existing Repository"] link_open
 107        $opts insert end "\n"
 108        if {$m_repo ne {}} {
 109                $m_repo add command \
 110                        -command [cb _next open] \
 111                        -accelerator $M1T-O \
 112                        -label [mc "Open..."]
 113                bind $top <$M1B-o> [cb _next open]
 114                bind $top <$M1B-O> [cb _next open]
 115        }
 116
 117        $opts conf -state disabled
 118
 119        set sorted_recent [_get_recentrepos]
 120        if {[llength $sorted_recent] > 0} {
 121                if {$m_repo ne {}} {
 122                        $m_repo add separator
 123                        $m_repo add command \
 124                                -state disabled \
 125                                -label [mc "Recent Repositories"]
 126                }
 127
 128                label $w_body.space
 129                label $w_body.recentlabel \
 130                        -anchor w \
 131                        -text [mc "Open Recent Repository:"]
 132                set w_recentlist $w_body.recentlist
 133                text $w_recentlist \
 134                        -cursor $::cursor_ptr \
 135                        -relief flat \
 136                        -background [$w_body.recentlabel cget -background] \
 137                        -wrap none \
 138                        -width 50 \
 139                        -height 10
 140                $w_recentlist tag conf link \
 141                        -foreground blue \
 142                        -underline 1
 143                set home "[file normalize $::env(HOME)][file separator]"
 144                set hlen [string length $home]
 145                foreach p $sorted_recent {
 146                        set path $p
 147                        if {[string equal -length $hlen $home $p]} {
 148                                set p "~[file separator][string range $p $hlen end]"
 149                        }
 150                        regsub -all "\n" $p "\\n" p
 151                        $w_recentlist insert end $p link
 152                        $w_recentlist insert end "\n"
 153
 154                        if {$m_repo ne {}} {
 155                                $m_repo add command \
 156                                        -command [cb _open_recent_path $path] \
 157                                        -label "    $p"
 158                        }
 159                }
 160                $w_recentlist conf -state disabled
 161                $w_recentlist tag bind link <1> [cb _open_recent %x,%y]
 162                pack $w_body.space -anchor w -fill x
 163                pack $w_body.recentlabel -anchor w -fill x
 164                pack $w_recentlist -anchor w -fill x
 165        }
 166        pack $w_body -fill x -padx 10 -pady 10
 167
 168        frame $w.buttons
 169        set w_next $w.buttons.next
 170        set w_quit $w.buttons.quit
 171        button $w_quit \
 172                -text [mc "Quit"] \
 173                -command exit
 174        pack $w_quit -side right -padx 5
 175        pack $w.buttons -side bottom -fill x -padx 10 -pady 10
 176
 177        if {$m_repo ne {}} {
 178                $m_repo add separator
 179                $m_repo add command \
 180                        -label [mc Quit] \
 181                        -command exit \
 182                        -accelerator $M1T-Q
 183        }
 184
 185        bind $top <Return> [cb _invoke_next]
 186        bind $top <Visibility> "
 187                [cb _center]
 188                grab $top
 189                focus $top
 190                bind $top <Visibility> {}
 191        "
 192        wm deiconify $top
 193        tkwait variable @done
 194
 195        if {$top eq {.}} {
 196                eval destroy [winfo children $top]
 197        }
 198}
 199
 200proc _home {} {
 201        if {[catch {set h $::env(HOME)}]
 202                || ![file isdirectory $h]} {
 203                set h .
 204        }
 205        return $h
 206}
 207
 208method _center {} {
 209        set nx [winfo reqwidth $top]
 210        set ny [winfo reqheight $top]
 211        set rx [expr {([winfo screenwidth  $top] - $nx) / 3}]
 212        set ry [expr {([winfo screenheight $top] - $ny) / 3}]
 213        wm geometry $top [format {+%d+%d} $rx $ry]
 214}
 215
 216method _invoke_next {} {
 217        if {[winfo exists $w_next]} {
 218                uplevel #0 [$w_next cget -command]
 219        }
 220}
 221
 222proc _get_recentrepos {} {
 223        set recent [list]
 224        foreach p [get_config gui.recentrepo] {
 225                if {[_is_git [file join $p .git]]} {
 226                        lappend recent $p
 227                }
 228        }
 229        return [lsort $recent]
 230}
 231
 232proc _unset_recentrepo {p} {
 233        regsub -all -- {([()\[\]{}\.^$+*?\\])} $p {\\\1} p
 234        git config --global --unset gui.recentrepo "^$p\$"
 235}
 236
 237proc _append_recentrepos {path} {
 238        set path [file normalize $path]
 239        set recent [get_config gui.recentrepo]
 240
 241        if {[lindex $recent end] eq $path} {
 242                return
 243        }
 244
 245        set i [lsearch $recent $path]
 246        if {$i >= 0} {
 247                _unset_recentrepo $path
 248                set recent [lreplace $recent $i $i]
 249        }
 250
 251        lappend recent $path
 252        git config --global --add gui.recentrepo $path
 253
 254        while {[llength $recent] > 10} {
 255                _unset_recentrepo [lindex $recent 0]
 256                set recent [lrange $recent 1 end]
 257        }
 258}
 259
 260method _open_recent {xy} {
 261        set id [lindex [split [$w_recentlist index @$xy] .] 0]
 262        set local_path [lindex $sorted_recent [expr {$id - 1}]]
 263        _do_open2 $this
 264}
 265
 266method _open_recent_path {p} {
 267        set local_path $p
 268        _do_open2 $this
 269}
 270
 271method _next {action} {
 272        destroy $w_body
 273        if {![winfo exists $w_next]} {
 274                button $w_next -default active
 275                pack $w_next -side right -padx 5 -before $w_quit
 276        }
 277        _do_$action $this
 278}
 279
 280method _write_local_path {args} {
 281        if {$local_path eq {}} {
 282                $w_next conf -state disabled
 283        } else {
 284                $w_next conf -state normal
 285        }
 286}
 287
 288method _git_init {} {
 289        if {[file exists $local_path]} {
 290                error_popup [mc "Location %s already exists." $local_path]
 291                return 0
 292        }
 293
 294        if {[catch {file mkdir $local_path} err]} {
 295                error_popup [strcat \
 296                        [mc "Failed to create repository %s:" $local_path] \
 297                        "\n\n$err"]
 298                return 0
 299        }
 300
 301        if {[catch {cd $local_path} err]} {
 302                error_popup [strcat \
 303                        [mc "Failed to create repository %s:" $local_path] \
 304                        "\n\n$err"]
 305                return 0
 306        }
 307
 308        if {[catch {git init} err]} {
 309                error_popup [strcat \
 310                        [mc "Failed to create repository %s:" $local_path] \
 311                        "\n\n$err"]
 312                return 0
 313        }
 314
 315        _append_recentrepos [pwd]
 316        set ::_gitdir .git
 317        set ::_prefix {}
 318        return 1
 319}
 320
 321proc _is_git {path} {
 322        if {[file exists [file join $path HEAD]]
 323         && [file exists [file join $path objects]]
 324         && [file exists [file join $path config]]} {
 325                return 1
 326        }
 327        return 0
 328}
 329
 330######################################################################
 331##
 332## Create New Repository
 333
 334method _do_new {} {
 335        $w_next conf \
 336                -state disabled \
 337                -command [cb _do_new2] \
 338                -text [mc "Create"]
 339
 340        frame $w_body
 341        label $w_body.h \
 342                -font font_uibold \
 343                -text [mc "Create New Repository"]
 344        pack $w_body.h -side top -fill x -pady 10
 345        pack $w_body -fill x -padx 10
 346
 347        frame $w_body.where
 348        label $w_body.where.l -text [mc "Directory:"]
 349        entry $w_body.where.t \
 350                -textvariable @local_path \
 351                -font font_diff \
 352                -width 50
 353        button $w_body.where.b \
 354                -text [mc "Browse"] \
 355                -command [cb _new_local_path]
 356
 357        pack $w_body.where.b -side right
 358        pack $w_body.where.l -side left
 359        pack $w_body.where.t -fill x
 360        pack $w_body.where -fill x
 361
 362        trace add variable @local_path write [cb _write_local_path]
 363        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
 364        update
 365        focus $w_body.where.t
 366}
 367
 368method _new_local_path {} {
 369        if {$local_path ne {}} {
 370                set p [file dirname $local_path]
 371        } else {
 372                set p [_home]
 373        }
 374
 375        set p [tk_chooseDirectory \
 376                -initialdir $p \
 377                -parent $top \
 378                -title [mc "Git Repository"] \
 379                -mustexist false]
 380        if {$p eq {}} return
 381
 382        set p [file normalize $p]
 383        if {[file isdirectory $p]} {
 384                foreach i [glob \
 385                        -directory $p \
 386                        -tails \
 387                        -nocomplain \
 388                        * .*] {
 389                        switch -- $i {
 390                         . continue
 391                        .. continue
 392                        default {
 393                                error_popup [mc "Directory %s already exists." $p]
 394                                return
 395                        }
 396                        }
 397                }
 398                if {[catch {file delete $p} err]} {
 399                        error_popup [strcat \
 400                                [mc "Directory %s already exists." $p] \
 401                                "\n\n$err"]
 402                        return
 403                }
 404        } elseif {[file exists $p]} {
 405                error_popup [mc "File %s already exists." $p]
 406                return
 407        }
 408        set local_path $p
 409}
 410
 411method _do_new2 {} {
 412        if {![_git_init $this]} {
 413                return
 414        }
 415        set done 1
 416}
 417
 418######################################################################
 419##
 420## Clone Existing Repository
 421
 422method _do_clone {} {
 423        $w_next conf \
 424                -state disabled \
 425                -command [cb _do_clone2] \
 426                -text [mc "Clone"]
 427
 428        frame $w_body
 429        label $w_body.h \
 430                -font font_uibold \
 431                -text [mc "Clone Existing Repository"]
 432        pack $w_body.h -side top -fill x -pady 10
 433        pack $w_body -fill x -padx 10
 434
 435        set args $w_body.args
 436        frame $w_body.args
 437        pack $args -fill both
 438
 439        label $args.origin_l -text [mc "URL:"]
 440        entry $args.origin_t \
 441                -textvariable @origin_url \
 442                -font font_diff \
 443                -width 50
 444        button $args.origin_b \
 445                -text [mc "Browse"] \
 446                -command [cb _open_origin]
 447        grid $args.origin_l $args.origin_t $args.origin_b -sticky ew
 448
 449        label $args.where_l -text [mc "Directory:"]
 450        entry $args.where_t \
 451                -textvariable @local_path \
 452                -font font_diff \
 453                -width 50
 454        button $args.where_b \
 455                -text [mc "Browse"] \
 456                -command [cb _new_local_path]
 457        grid $args.where_l $args.where_t $args.where_b -sticky ew
 458
 459        label $args.type_l -text [mc "Clone Type:"]
 460        frame $args.type_f
 461        set w_types [list]
 462        lappend w_types [radiobutton $args.type_f.hardlink \
 463                -state disabled \
 464                -anchor w \
 465                -text [mc "Standard (Fast, Semi-Redundant, Hardlinks)"] \
 466                -variable @clone_type \
 467                -value hardlink]
 468        lappend w_types [radiobutton $args.type_f.full \
 469                -state disabled \
 470                -anchor w \
 471                -text [mc "Full Copy (Slower, Redundant Backup)"] \
 472                -variable @clone_type \
 473                -value full]
 474        lappend w_types [radiobutton $args.type_f.shared \
 475                -state disabled \
 476                -anchor w \
 477                -text [mc "Shared (Fastest, Not Recommended, No Backup)"] \
 478                -variable @clone_type \
 479                -value shared]
 480        foreach r $w_types {
 481                pack $r -anchor w
 482        }
 483        grid $args.type_l $args.type_f -sticky new
 484
 485        grid columnconfigure $args 1 -weight 1
 486
 487        trace add variable @local_path write [cb _update_clone]
 488        trace add variable @origin_url write [cb _update_clone]
 489        bind $w_body.h <Destroy> "
 490                [list trace remove variable @local_path write [cb _update_clone]]
 491                [list trace remove variable @origin_url write [cb _update_clone]]
 492        "
 493        update
 494        focus $args.origin_t
 495}
 496
 497method _open_origin {} {
 498        if {$origin_url ne {} && [file isdirectory $origin_url]} {
 499                set p $origin_url
 500        } else {
 501                set p [_home]
 502        }
 503
 504        set p [tk_chooseDirectory \
 505                -initialdir $p \
 506                -parent $top \
 507                -title [mc "Git Repository"] \
 508                -mustexist true]
 509        if {$p eq {}} return
 510
 511        set p [file normalize $p]
 512        if {![_is_git [file join $p .git]] && ![_is_git $p]} {
 513                error_popup [mc "Not a Git repository: %s" [file tail $p]]
 514                return
 515        }
 516        set origin_url $p
 517}
 518
 519method _update_clone {args} {
 520        if {$local_path ne {} && $origin_url ne {}} {
 521                $w_next conf -state normal
 522        } else {
 523                $w_next conf -state disabled
 524        }
 525
 526        if {$origin_url ne {} &&
 527                (  [_is_git [file join $origin_url .git]]
 528                || [_is_git $origin_url])} {
 529                set e normal
 530                if {[[lindex $w_types 0] cget -state] eq {disabled}} {
 531                        set clone_type hardlink
 532                }
 533        } else {
 534                set e disabled
 535                set clone_type full
 536        }
 537
 538        foreach r $w_types {
 539                $r conf -state $e
 540        }
 541}
 542
 543method _do_clone2 {} {
 544        if {[file isdirectory $origin_url]} {
 545                set origin_url [file normalize $origin_url]
 546        }
 547
 548        if {$clone_type eq {hardlink} && ![file isdirectory $origin_url]} {
 549                error_popup [mc "Standard only available for local repository."]
 550                return
 551        }
 552        if {$clone_type eq {shared} && ![file isdirectory $origin_url]} {
 553                error_popup [mc "Shared only available for local repository."]
 554                return
 555        }
 556
 557        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 558                set objdir [file join $origin_url .git objects]
 559                if {![file isdirectory $objdir]} {
 560                        set objdir [file join $origin_url objects]
 561                        if {![file isdirectory $objdir]} {
 562                                error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 563                                return
 564                        }
 565                }
 566        }
 567
 568        set giturl $origin_url
 569        if {[is_Cygwin] && [file isdirectory $giturl]} {
 570                set giturl [exec cygpath --unix --absolute $giturl]
 571                if {$clone_type eq {shared}} {
 572                        set objdir [exec cygpath --unix --absolute $objdir]
 573                }
 574        }
 575
 576        if {![_git_init $this]} return
 577        set local_path [pwd]
 578
 579        if {[catch {
 580                        git config remote.$origin_name.url $giturl
 581                        git config remote.$origin_name.fetch +refs/heads/*:refs/remotes/$origin_name/*
 582                } err]} {
 583                error_popup [strcat [mc "Failed to configure origin"] "\n\n$err"]
 584                return
 585        }
 586
 587        destroy $w_body $w_next
 588
 589        switch -exact -- $clone_type {
 590        hardlink {
 591                set o_cons [status_bar::two_line $w_body]
 592                pack $w_body -fill x -padx 10 -pady 10
 593
 594                $o_cons start \
 595                        [mc "Counting objects"] \
 596                        [mc "buckets"]
 597                update
 598
 599                if {[file exists [file join $objdir info alternates]]} {
 600                        set pwd [pwd]
 601                        if {[catch {
 602                                file mkdir [gitdir objects info]
 603                                set f_in [open [file join $objdir info alternates] r]
 604                                set f_cp [open [gitdir objects info alternates] w]
 605                                fconfigure $f_in -translation binary -encoding binary
 606                                fconfigure $f_cp -translation binary -encoding binary
 607                                cd $objdir
 608                                while {[gets $f_in line] >= 0} {
 609                                        if {[is_Cygwin]} {
 610                                                puts $f_cp [exec cygpath --unix --absolute $line]
 611                                        } else {
 612                                                puts $f_cp [file normalize $line]
 613                                        }
 614                                }
 615                                close $f_in
 616                                close $f_cp
 617                                cd $pwd
 618                        } err]} {
 619                                catch {cd $pwd}
 620                                _clone_failed $this [mc "Unable to copy objects/info/alternates: %s" $err]
 621                                return
 622                        }
 623                }
 624
 625                set tolink  [list]
 626                set buckets [glob \
 627                        -tails \
 628                        -nocomplain \
 629                        -directory [file join $objdir] ??]
 630                set bcnt [expr {[llength $buckets] + 2}]
 631                set bcur 1
 632                $o_cons update $bcur $bcnt
 633                update
 634
 635                file mkdir [file join .git objects pack]
 636                foreach i [glob -tails -nocomplain \
 637                        -directory [file join $objdir pack] *] {
 638                        lappend tolink [file join pack $i]
 639                }
 640                $o_cons update [incr bcur] $bcnt
 641                update
 642
 643                foreach i $buckets {
 644                        file mkdir [file join .git objects $i]
 645                        foreach j [glob -tails -nocomplain \
 646                                -directory [file join $objdir $i] *] {
 647                                lappend tolink [file join $i $j]
 648                        }
 649                        $o_cons update [incr bcur] $bcnt
 650                        update
 651                }
 652                $o_cons stop
 653
 654                if {$tolink eq {}} {
 655                        info_popup [strcat \
 656                                [mc "Nothing to clone from %s." $origin_url] \
 657                                "\n" \
 658                                [mc "The 'master' branch has not been initialized."] \
 659                                ]
 660                        destroy $w_body
 661                        set done 1
 662                        return
 663                }
 664
 665                set i [lindex $tolink 0]
 666                if {[catch {
 667                                file link -hard \
 668                                        [file join .git objects $i] \
 669                                        [file join $objdir $i]
 670                        } err]} {
 671                        info_popup [mc "Hardlinks are unavailable.  Falling back to copying."]
 672                        set i [_copy_files $this $objdir $tolink]
 673                } else {
 674                        set i [_link_files $this $objdir [lrange $tolink 1 end]]
 675                }
 676                if {!$i} return
 677
 678                destroy $w_body
 679        }
 680        full {
 681                set o_cons [console::embed \
 682                        $w_body \
 683                        [mc "Cloning from %s" $origin_url]]
 684                pack $w_body -fill both -expand 1 -padx 10
 685                $o_cons exec \
 686                        [list git fetch --no-tags -k $origin_name] \
 687                        [cb _do_clone_tags]
 688        }
 689        shared {
 690                set fd [open [gitdir objects info alternates] w]
 691                fconfigure $fd -translation binary
 692                puts $fd $objdir
 693                close $fd
 694        }
 695        }
 696
 697        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 698                if {![_clone_refs $this]} return
 699                set pwd [pwd]
 700                if {[catch {
 701                                cd $origin_url
 702                                set HEAD [git rev-parse --verify HEAD^0]
 703                        } err]} {
 704                        _clone_failed $this [mc "Not a Git repository: %s" [file tail $origin_url]]
 705                        return 0
 706                }
 707                cd $pwd
 708                _do_clone_checkout $this $HEAD
 709        }
 710}
 711
 712method _copy_files {objdir tocopy} {
 713        $o_cons start \
 714                [mc "Copying objects"] \
 715                [mc "KiB"]
 716        set tot 0
 717        set cmp 0
 718        foreach p $tocopy {
 719                incr tot [file size [file join $objdir $p]]
 720        }
 721        foreach p $tocopy {
 722                if {[catch {
 723                                set f_in [open [file join $objdir $p] r]
 724                                set f_cp [open [file join .git objects $p] w]
 725                                fconfigure $f_in -translation binary -encoding binary
 726                                fconfigure $f_cp -translation binary -encoding binary
 727
 728                                while {![eof $f_in]} {
 729                                        incr cmp [fcopy $f_in $f_cp -size 16384]
 730                                        $o_cons update \
 731                                                [expr {$cmp / 1024}] \
 732                                                [expr {$tot / 1024}]
 733                                        update
 734                                }
 735
 736                                close $f_in
 737                                close $f_cp
 738                        } err]} {
 739                        _clone_failed $this [mc "Unable to copy object: %s" $err]
 740                        return 0
 741                }
 742        }
 743        return 1
 744}
 745
 746method _link_files {objdir tolink} {
 747        set total [llength $tolink]
 748        $o_cons start \
 749                [mc "Linking objects"] \
 750                [mc "objects"]
 751        for {set i 0} {$i < $total} {} {
 752                set p [lindex $tolink $i]
 753                if {[catch {
 754                                file link -hard \
 755                                        [file join .git objects $p] \
 756                                        [file join $objdir $p]
 757                        } err]} {
 758                        _clone_failed $this [mc "Unable to hardlink object: %s" $err]
 759                        return 0
 760                }
 761
 762                incr i
 763                if {$i % 5 == 0} {
 764                        $o_cons update $i $total
 765                        update
 766                }
 767        }
 768        return 1
 769}
 770
 771method _clone_refs {} {
 772        set pwd [pwd]
 773        if {[catch {cd $origin_url} err]} {
 774                error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 775                return 0
 776        }
 777        set fd_in [git_read for-each-ref \
 778                --tcl \
 779                {--format=list %(refname) %(objectname) %(*objectname)}]
 780        cd $pwd
 781
 782        set fd [open [gitdir packed-refs] w]
 783        fconfigure $fd -translation binary
 784        puts $fd "# pack-refs with: peeled"
 785        while {[gets $fd_in line] >= 0} {
 786                set line [eval $line]
 787                set refn [lindex $line 0]
 788                set robj [lindex $line 1]
 789                set tobj [lindex $line 2]
 790
 791                if {[regsub ^refs/heads/ $refn \
 792                        "refs/remotes/$origin_name/" refn]} {
 793                        puts $fd "$robj $refn"
 794                } elseif {[string match refs/tags/* $refn]} {
 795                        puts $fd "$robj $refn"
 796                        if {$tobj ne {}} {
 797                                puts $fd "^$tobj"
 798                        }
 799                }
 800        }
 801        close $fd_in
 802        close $fd
 803        return 1
 804}
 805
 806method _do_clone_tags {ok} {
 807        if {$ok} {
 808                $o_cons exec \
 809                        [list git fetch --tags -k $origin_name] \
 810                        [cb _do_clone_HEAD]
 811        } else {
 812                $o_cons done $ok
 813                _clone_failed $this [mc "Cannot fetch branches and objects.  See console output for details."]
 814        }
 815}
 816
 817method _do_clone_HEAD {ok} {
 818        if {$ok} {
 819                $o_cons exec \
 820                        [list git fetch $origin_name HEAD] \
 821                        [cb _do_clone_full_end]
 822        } else {
 823                $o_cons done $ok
 824                _clone_failed $this [mc "Cannot fetch tags.  See console output for details."]
 825        }
 826}
 827
 828method _do_clone_full_end {ok} {
 829        $o_cons done $ok
 830
 831        if {$ok} {
 832                destroy $w_body
 833
 834                set HEAD {}
 835                if {[file exists [gitdir FETCH_HEAD]]} {
 836                        set fd [open [gitdir FETCH_HEAD] r]
 837                        while {[gets $fd line] >= 0} {
 838                                if {[regexp "^(.{40})\t\t" $line line HEAD]} {
 839                                        break
 840                                }
 841                        }
 842                        close $fd
 843                }
 844
 845                catch {git pack-refs}
 846                _do_clone_checkout $this $HEAD
 847        } else {
 848                _clone_failed $this [mc "Cannot determine HEAD.  See console output for details."]
 849        }
 850}
 851
 852method _clone_failed {{why {}}} {
 853        if {[catch {file delete -force $local_path} err]} {
 854                set why [strcat \
 855                        $why \
 856                        "\n\n" \
 857                        [mc "Unable to cleanup %s" $local_path] \
 858                        "\n\n" \
 859                        $err]
 860        }
 861        if {$why ne {}} {
 862                update
 863                error_popup [strcat [mc "Clone failed."] "\n" $why]
 864        }
 865}
 866
 867method _do_clone_checkout {HEAD} {
 868        if {$HEAD eq {}} {
 869                info_popup [strcat \
 870                        [mc "No default branch obtained."] \
 871                        "\n" \
 872                        [mc "The 'master' branch has not been initialized."] \
 873                        ]
 874                set done 1
 875                return
 876        }
 877        if {[catch {
 878                        git update-ref HEAD $HEAD^0
 879                } err]} {
 880                info_popup [strcat \
 881                        [mc "Cannot resolve %s as a commit." $HEAD^0] \
 882                        "\n  $err" \
 883                        "\n" \
 884                        [mc "The 'master' branch has not been initialized."] \
 885                        ]
 886                set done 1
 887                return
 888        }
 889
 890        set o_cons [status_bar::two_line $w_body]
 891        pack $w_body -fill x -padx 10 -pady 10
 892        $o_cons start \
 893                [mc "Creating working directory"] \
 894                [mc "files"]
 895
 896        set readtree_err {}
 897        set fd [git_read --stderr read-tree \
 898                -m \
 899                -u \
 900                -v \
 901                HEAD \
 902                HEAD \
 903                ]
 904        fconfigure $fd -blocking 0 -translation binary
 905        fileevent $fd readable [cb _readtree_wait $fd]
 906}
 907
 908method _readtree_wait {fd} {
 909        set buf [read $fd]
 910        $o_cons update_meter $buf
 911        append readtree_err $buf
 912
 913        fconfigure $fd -blocking 1
 914        if {![eof $fd]} {
 915                fconfigure $fd -blocking 0
 916                return
 917        }
 918
 919        if {[catch {close $fd}]} {
 920                set err $readtree_err
 921                regsub {^fatal: } $err {} err
 922                error_popup [strcat \
 923                        [mc "Initial file checkout failed."] \
 924                        "\n\n$err"]
 925                return
 926        }
 927
 928        set done 1
 929}
 930
 931######################################################################
 932##
 933## Open Existing Repository
 934
 935method _do_open {} {
 936        $w_next conf \
 937                -state disabled \
 938                -command [cb _do_open2] \
 939                -text [mc "Open"]
 940
 941        frame $w_body
 942        label $w_body.h \
 943                -font font_uibold \
 944                -text [mc "Open Existing Repository"]
 945        pack $w_body.h -side top -fill x -pady 10
 946        pack $w_body -fill x -padx 10
 947
 948        frame $w_body.where
 949        label $w_body.where.l -text [mc "Repository:"]
 950        entry $w_body.where.t \
 951                -textvariable @local_path \
 952                -font font_diff \
 953                -width 50
 954        button $w_body.where.b \
 955                -text [mc "Browse"] \
 956                -command [cb _open_local_path]
 957
 958        pack $w_body.where.b -side right
 959        pack $w_body.where.l -side left
 960        pack $w_body.where.t -fill x
 961        pack $w_body.where -fill x
 962
 963        trace add variable @local_path write [cb _write_local_path]
 964        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
 965        update
 966        focus $w_body.where.t
 967}
 968
 969method _open_local_path {} {
 970        if {$local_path ne {}} {
 971                set p $local_path
 972        } else {
 973                set p [_home]
 974        }
 975
 976        set p [tk_chooseDirectory \
 977                -initialdir $p \
 978                -parent $top \
 979                -title [mc "Git Repository"] \
 980                -mustexist true]
 981        if {$p eq {}} return
 982
 983        set p [file normalize $p]
 984        if {![_is_git [file join $p .git]]} {
 985                error_popup [mc "Not a Git repository: %s" [file tail $p]]
 986                return
 987        }
 988        set local_path $p
 989}
 990
 991method _do_open2 {} {
 992        if {![_is_git [file join $local_path .git]]} {
 993                error_popup [mc "Not a Git repository: %s" [file tail $local_path]]
 994                return
 995        }
 996
 997        if {[catch {cd $local_path} err]} {
 998                error_popup [strcat \
 999                        [mc "Failed to open repository %s:" $local_path] \
1000                        "\n\n$err"]
1001                return
1002        }
1003
1004        _append_recentrepos [pwd]
1005        set ::_gitdir .git
1006        set ::_prefix {}
1007        set done 1
1008}
1009
1010}