Andrew's git / gitweb.git / git-gui/lib/choose_repository.tcl
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git-gui / lib / choose_repository.tclon commit Sync with 1.5.4.3 (923d44a)
   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
  14field w_localpath  ; # Entry widget bound to local_path
  15
  16field done              0 ; # Finished picking the repository?
  17field local_path       {} ; # Where this repository is locally
  18field origin_url       {} ; # Where we are cloning from
  19field origin_name  origin ; # What we shall call 'origin'
  20field clone_type hardlink ; # Type of clone to construct
  21field readtree_err        ; # Error output from read-tree (if any)
  22field sorted_recent       ; # recent repositories (sorted)
  23
  24constructor pick {} {
  25        global M1T M1B
  26
  27        make_toplevel top w
  28        wm title $top [mc "Git Gui"]
  29
  30        if {$top eq {.}} {
  31                menu $w.mbar -tearoff 0
  32                $top configure -menu $w.mbar
  33
  34                set m_repo $w.mbar.repository
  35                $w.mbar add cascade \
  36                        -label [mc Repository] \
  37                        -menu $m_repo
  38                menu $m_repo
  39
  40                if {[is_MacOSX]} {
  41                        $w.mbar add cascade -label [mc Apple] -menu .mbar.apple
  42                        menu $w.mbar.apple
  43                        $w.mbar.apple add command \
  44                                -label [mc "About %s" [appname]] \
  45                                -command do_about
  46                } else {
  47                        $w.mbar add cascade -label [mc Help] -menu $w.mbar.help
  48                        menu $w.mbar.help
  49                        $w.mbar.help add command \
  50                                -label [mc "About %s" [appname]] \
  51                                -command do_about
  52                }
  53
  54                wm protocol $top WM_DELETE_WINDOW exit
  55                bind $top <$M1B-q> exit
  56                bind $top <$M1B-Q> exit
  57                bind $top <Key-Escape> exit
  58        } else {
  59                wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
  60                bind $top <Key-Escape> [list destroy $top]
  61                set m_repo {}
  62        }
  63
  64        pack [git_logo $w.git_logo] -side left -fill y -padx 10 -pady 10
  65
  66        set w_body $w.body
  67        set opts $w_body.options
  68        frame $w_body
  69        text $opts \
  70                -cursor $::cursor_ptr \
  71                -relief flat \
  72                -background [$w_body cget -background] \
  73                -wrap none \
  74                -spacing1 5 \
  75                -width 50 \
  76                -height 3
  77        pack $opts -anchor w -fill x
  78
  79        $opts tag conf link_new -foreground blue -underline 1
  80        $opts tag bind link_new <1> [cb _next new]
  81        $opts insert end [mc "Create New Repository"] link_new
  82        $opts insert end "\n"
  83        if {$m_repo ne {}} {
  84                $m_repo add command \
  85                        -command [cb _next new] \
  86                        -accelerator $M1T-N \
  87                        -label [mc "New..."]
  88                bind $top <$M1B-n> [cb _next new]
  89                bind $top <$M1B-N> [cb _next new]
  90        }
  91
  92        $opts tag conf link_clone -foreground blue -underline 1
  93        $opts tag bind link_clone <1> [cb _next clone]
  94        $opts insert end [mc "Clone Existing Repository"] link_clone
  95        $opts insert end "\n"
  96        if {$m_repo ne {}} {
  97                $m_repo add command \
  98                        -command [cb _next clone] \
  99                        -accelerator $M1T-C \
 100                        -label [mc "Clone..."]
 101                bind $top <$M1B-c> [cb _next clone]
 102                bind $top <$M1B-C> [cb _next clone]
 103        }
 104
 105        $opts tag conf link_open -foreground blue -underline 1
 106        $opts tag bind link_open <1> [cb _next open]
 107        $opts insert end [mc "Open Existing Repository"] link_open
 108        $opts insert end "\n"
 109        if {$m_repo ne {}} {
 110                $m_repo add command \
 111                        -command [cb _next open] \
 112                        -accelerator $M1T-O \
 113                        -label [mc "Open..."]
 114                bind $top <$M1B-o> [cb _next open]
 115                bind $top <$M1B-O> [cb _next open]
 116        }
 117
 118        $opts conf -state disabled
 119
 120        set sorted_recent [_get_recentrepos]
 121        if {[llength $sorted_recent] > 0} {
 122                if {$m_repo ne {}} {
 123                        $m_repo add separator
 124                        $m_repo add command \
 125                                -state disabled \
 126                                -label [mc "Recent Repositories"]
 127                }
 128
 129                label $w_body.space
 130                label $w_body.recentlabel \
 131                        -anchor w \
 132                        -text [mc "Open Recent Repository:"]
 133                set w_recentlist $w_body.recentlist
 134                text $w_recentlist \
 135                        -cursor $::cursor_ptr \
 136                        -relief flat \
 137                        -background [$w_body.recentlabel cget -background] \
 138                        -wrap none \
 139                        -width 50 \
 140                        -height 10
 141                $w_recentlist tag conf link \
 142                        -foreground blue \
 143                        -underline 1
 144                set home $::env(HOME)
 145                if {[is_Cygwin]} {
 146                        set home [exec cygpath --windows --absolute $home]
 147                }
 148                set home "[file normalize $home]/"
 149                set hlen [string length $home]
 150                foreach p $sorted_recent {
 151                        set path $p
 152                        if {[string equal -length $hlen $home $p]} {
 153                                set p "~/[string range $p $hlen end]"
 154                        }
 155                        regsub -all "\n" $p "\\n" p
 156                        $w_recentlist insert end $p link
 157                        $w_recentlist insert end "\n"
 158
 159                        if {$m_repo ne {}} {
 160                                $m_repo add command \
 161                                        -command [cb _open_recent_path $path] \
 162                                        -label "    $p"
 163                        }
 164                }
 165                $w_recentlist conf -state disabled
 166                $w_recentlist tag bind link <1> [cb _open_recent %x,%y]
 167                pack $w_body.space -anchor w -fill x
 168                pack $w_body.recentlabel -anchor w -fill x
 169                pack $w_recentlist -anchor w -fill x
 170        }
 171        pack $w_body -fill x -padx 10 -pady 10
 172
 173        frame $w.buttons
 174        set w_next $w.buttons.next
 175        set w_quit $w.buttons.quit
 176        button $w_quit \
 177                -text [mc "Quit"] \
 178                -command exit
 179        pack $w_quit -side right -padx 5
 180        pack $w.buttons -side bottom -fill x -padx 10 -pady 10
 181
 182        if {$m_repo ne {}} {
 183                $m_repo add separator
 184                $m_repo add command \
 185                        -label [mc Quit] \
 186                        -command exit \
 187                        -accelerator $M1T-Q
 188        }
 189
 190        bind $top <Return> [cb _invoke_next]
 191        bind $top <Visibility> "
 192                [cb _center]
 193                grab $top
 194                focus $top
 195                bind $top <Visibility> {}
 196        "
 197        wm deiconify $top
 198        tkwait variable @done
 199
 200        if {$top eq {.}} {
 201                eval destroy [winfo children $top]
 202        }
 203}
 204
 205proc _home {} {
 206        if {[catch {set h $::env(HOME)}]
 207                || ![file isdirectory $h]} {
 208                set h .
 209        }
 210        return $h
 211}
 212
 213method _center {} {
 214        set nx [winfo reqwidth $top]
 215        set ny [winfo reqheight $top]
 216        set rx [expr {([winfo screenwidth  $top] - $nx) / 3}]
 217        set ry [expr {([winfo screenheight $top] - $ny) / 3}]
 218        wm geometry $top [format {+%d+%d} $rx $ry]
 219}
 220
 221method _invoke_next {} {
 222        if {[winfo exists $w_next]} {
 223                uplevel #0 [$w_next cget -command]
 224        }
 225}
 226
 227proc _get_recentrepos {} {
 228        set recent [list]
 229        foreach p [get_config gui.recentrepo] {
 230                if {[_is_git [file join $p .git]]} {
 231                        lappend recent $p
 232                }
 233        }
 234        return [lsort $recent]
 235}
 236
 237proc _unset_recentrepo {p} {
 238        regsub -all -- {([()\[\]{}\.^$+*?\\])} $p {\\\1} p
 239        git config --global --unset gui.recentrepo "^$p\$"
 240}
 241
 242proc _append_recentrepos {path} {
 243        set path [file normalize $path]
 244        set recent [get_config gui.recentrepo]
 245
 246        if {[lindex $recent end] eq $path} {
 247                return
 248        }
 249
 250        set i [lsearch $recent $path]
 251        if {$i >= 0} {
 252                _unset_recentrepo $path
 253                set recent [lreplace $recent $i $i]
 254        }
 255
 256        lappend recent $path
 257        git config --global --add gui.recentrepo $path
 258
 259        while {[llength $recent] > 10} {
 260                _unset_recentrepo [lindex $recent 0]
 261                set recent [lrange $recent 1 end]
 262        }
 263}
 264
 265method _open_recent {xy} {
 266        set id [lindex [split [$w_recentlist index @$xy] .] 0]
 267        set local_path [lindex $sorted_recent [expr {$id - 1}]]
 268        _do_open2 $this
 269}
 270
 271method _open_recent_path {p} {
 272        set local_path $p
 273        _do_open2 $this
 274}
 275
 276method _next {action} {
 277        destroy $w_body
 278        if {![winfo exists $w_next]} {
 279                button $w_next -default active
 280                pack $w_next -side right -padx 5 -before $w_quit
 281        }
 282        _do_$action $this
 283}
 284
 285method _write_local_path {args} {
 286        if {$local_path eq {}} {
 287                $w_next conf -state disabled
 288        } else {
 289                $w_next conf -state normal
 290        }
 291}
 292
 293method _git_init {} {
 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        if {[is_Cygwin]} {
 328                if {[file exists [file join $path HEAD]]
 329                 && [file exists [file join $path objects.lnk]]
 330                 && [file exists [file join $path config.lnk]]} {
 331                        return 1
 332                }
 333        }
 334        return 0
 335}
 336
 337proc _objdir {path} {
 338        set objdir [file join $path .git objects]
 339        if {[file isdirectory $objdir]} {
 340                return $objdir
 341        }
 342
 343        set objdir [file join $path objects]
 344        if {[file isdirectory $objdir]} {
 345                return $objdir
 346        }
 347
 348        if {[is_Cygwin]} {
 349                set objdir [file join $path .git objects.lnk]
 350                if {[file isfile $objdir]} {
 351                        return [win32_read_lnk $objdir]
 352                }
 353
 354                set objdir [file join $path objects.lnk]
 355                if {[file isfile $objdir]} {
 356                        return [win32_read_lnk $objdir]
 357                }
 358        }
 359
 360        return {}
 361}
 362
 363######################################################################
 364##
 365## Create New Repository
 366
 367method _do_new {} {
 368        $w_next conf \
 369                -state disabled \
 370                -command [cb _do_new2] \
 371                -text [mc "Create"]
 372
 373        frame $w_body
 374        label $w_body.h \
 375                -font font_uibold \
 376                -text [mc "Create New Repository"]
 377        pack $w_body.h -side top -fill x -pady 10
 378        pack $w_body -fill x -padx 10
 379
 380        frame $w_body.where
 381        label $w_body.where.l -text [mc "Directory:"]
 382        entry $w_body.where.t \
 383                -textvariable @local_path \
 384                -font font_diff \
 385                -width 50
 386        button $w_body.where.b \
 387                -text [mc "Browse"] \
 388                -command [cb _new_local_path]
 389        set w_localpath $w_body.where.t
 390
 391        pack $w_body.where.b -side right
 392        pack $w_body.where.l -side left
 393        pack $w_body.where.t -fill x
 394        pack $w_body.where -fill x
 395
 396        trace add variable @local_path write [cb _write_local_path]
 397        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
 398        update
 399        focus $w_body.where.t
 400}
 401
 402method _new_local_path {} {
 403        if {$local_path ne {}} {
 404                set p [file dirname $local_path]
 405        } else {
 406                set p [_home]
 407        }
 408
 409        set p [tk_chooseDirectory \
 410                -initialdir $p \
 411                -parent $top \
 412                -title [mc "Git Repository"] \
 413                -mustexist false]
 414        if {$p eq {}} return
 415
 416        set p [file normalize $p]
 417        if {![_new_ok $p]} {
 418                return
 419        }
 420        set local_path $p
 421        $w_localpath icursor end
 422}
 423
 424method _do_new2 {} {
 425        if {![_new_ok $local_path]} {
 426                return
 427        }
 428        if {![_git_init $this]} {
 429                return
 430        }
 431        set done 1
 432}
 433
 434proc _new_ok {p} {
 435        if {[file isdirectory $p]} {
 436                if {[_is_git [file join $p .git]]} {
 437                        error_popup [mc "Directory %s already exists." $p]
 438                        return 0
 439                }
 440        } elseif {[file exists $p]} {
 441                error_popup [mc "File %s already exists." $p]
 442                return 0
 443        }
 444        return 1
 445}
 446
 447######################################################################
 448##
 449## Clone Existing Repository
 450
 451method _do_clone {} {
 452        $w_next conf \
 453                -state disabled \
 454                -command [cb _do_clone2] \
 455                -text [mc "Clone"]
 456
 457        frame $w_body
 458        label $w_body.h \
 459                -font font_uibold \
 460                -text [mc "Clone Existing Repository"]
 461        pack $w_body.h -side top -fill x -pady 10
 462        pack $w_body -fill x -padx 10
 463
 464        set args $w_body.args
 465        frame $w_body.args
 466        pack $args -fill both
 467
 468        label $args.origin_l -text [mc "URL:"]
 469        entry $args.origin_t \
 470                -textvariable @origin_url \
 471                -font font_diff \
 472                -width 50
 473        button $args.origin_b \
 474                -text [mc "Browse"] \
 475                -command [cb _open_origin]
 476        grid $args.origin_l $args.origin_t $args.origin_b -sticky ew
 477
 478        label $args.where_l -text [mc "Directory:"]
 479        entry $args.where_t \
 480                -textvariable @local_path \
 481                -font font_diff \
 482                -width 50
 483        button $args.where_b \
 484                -text [mc "Browse"] \
 485                -command [cb _new_local_path]
 486        grid $args.where_l $args.where_t $args.where_b -sticky ew
 487        set w_localpath $args.where_t
 488
 489        label $args.type_l -text [mc "Clone Type:"]
 490        frame $args.type_f
 491        set w_types [list]
 492        lappend w_types [radiobutton $args.type_f.hardlink \
 493                -state disabled \
 494                -anchor w \
 495                -text [mc "Standard (Fast, Semi-Redundant, Hardlinks)"] \
 496                -variable @clone_type \
 497                -value hardlink]
 498        lappend w_types [radiobutton $args.type_f.full \
 499                -state disabled \
 500                -anchor w \
 501                -text [mc "Full Copy (Slower, Redundant Backup)"] \
 502                -variable @clone_type \
 503                -value full]
 504        lappend w_types [radiobutton $args.type_f.shared \
 505                -state disabled \
 506                -anchor w \
 507                -text [mc "Shared (Fastest, Not Recommended, No Backup)"] \
 508                -variable @clone_type \
 509                -value shared]
 510        foreach r $w_types {
 511                pack $r -anchor w
 512        }
 513        grid $args.type_l $args.type_f -sticky new
 514
 515        grid columnconfigure $args 1 -weight 1
 516
 517        trace add variable @local_path write [cb _update_clone]
 518        trace add variable @origin_url write [cb _update_clone]
 519        bind $w_body.h <Destroy> "
 520                [list trace remove variable @local_path write [cb _update_clone]]
 521                [list trace remove variable @origin_url write [cb _update_clone]]
 522        "
 523        update
 524        focus $args.origin_t
 525}
 526
 527method _open_origin {} {
 528        if {$origin_url ne {} && [file isdirectory $origin_url]} {
 529                set p $origin_url
 530        } else {
 531                set p [_home]
 532        }
 533
 534        set p [tk_chooseDirectory \
 535                -initialdir $p \
 536                -parent $top \
 537                -title [mc "Git Repository"] \
 538                -mustexist true]
 539        if {$p eq {}} return
 540
 541        set p [file normalize $p]
 542        if {![_is_git [file join $p .git]] && ![_is_git $p]} {
 543                error_popup [mc "Not a Git repository: %s" [file tail $p]]
 544                return
 545        }
 546        set origin_url $p
 547}
 548
 549method _update_clone {args} {
 550        if {$local_path ne {} && $origin_url ne {}} {
 551                $w_next conf -state normal
 552        } else {
 553                $w_next conf -state disabled
 554        }
 555
 556        if {$origin_url ne {} &&
 557                (  [_is_git [file join $origin_url .git]]
 558                || [_is_git $origin_url])} {
 559                set e normal
 560                if {[[lindex $w_types 0] cget -state] eq {disabled}} {
 561                        set clone_type hardlink
 562                }
 563        } else {
 564                set e disabled
 565                set clone_type full
 566        }
 567
 568        foreach r $w_types {
 569                $r conf -state $e
 570        }
 571}
 572
 573method _do_clone2 {} {
 574        if {[file isdirectory $origin_url]} {
 575                set origin_url [file normalize $origin_url]
 576        }
 577
 578        if {$clone_type eq {hardlink} && ![file isdirectory $origin_url]} {
 579                error_popup [mc "Standard only available for local repository."]
 580                return
 581        }
 582        if {$clone_type eq {shared} && ![file isdirectory $origin_url]} {
 583                error_popup [mc "Shared only available for local repository."]
 584                return
 585        }
 586
 587        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 588                set objdir [_objdir $origin_url]
 589                if {$objdir eq {}} {
 590                        error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 591                        return
 592                }
 593        }
 594
 595        set giturl $origin_url
 596        if {[is_Cygwin] && [file isdirectory $giturl]} {
 597                set giturl [exec cygpath --unix --absolute $giturl]
 598                if {$clone_type eq {shared}} {
 599                        set objdir [exec cygpath --unix --absolute $objdir]
 600                }
 601        }
 602
 603        if {[file exists $local_path]} {
 604                error_popup [mc "Location %s already exists." $local_path]
 605                return
 606        }
 607
 608        if {![_git_init $this]} return
 609        set local_path [pwd]
 610
 611        if {[catch {
 612                        git config remote.$origin_name.url $giturl
 613                        git config remote.$origin_name.fetch +refs/heads/*:refs/remotes/$origin_name/*
 614                } err]} {
 615                error_popup [strcat [mc "Failed to configure origin"] "\n\n$err"]
 616                return
 617        }
 618
 619        destroy $w_body $w_next
 620
 621        switch -exact -- $clone_type {
 622        hardlink {
 623                set o_cons [status_bar::two_line $w_body]
 624                pack $w_body -fill x -padx 10 -pady 10
 625
 626                $o_cons start \
 627                        [mc "Counting objects"] \
 628                        [mc "buckets"]
 629                update
 630
 631                if {[file exists [file join $objdir info alternates]]} {
 632                        set pwd [pwd]
 633                        if {[catch {
 634                                file mkdir [gitdir objects info]
 635                                set f_in [open [file join $objdir info alternates] r]
 636                                set f_cp [open [gitdir objects info alternates] w]
 637                                fconfigure $f_in -translation binary -encoding binary
 638                                fconfigure $f_cp -translation binary -encoding binary
 639                                cd $objdir
 640                                while {[gets $f_in line] >= 0} {
 641                                        if {[is_Cygwin]} {
 642                                                puts $f_cp [exec cygpath --unix --absolute $line]
 643                                        } else {
 644                                                puts $f_cp [file normalize $line]
 645                                        }
 646                                }
 647                                close $f_in
 648                                close $f_cp
 649                                cd $pwd
 650                        } err]} {
 651                                catch {cd $pwd}
 652                                _clone_failed $this [mc "Unable to copy objects/info/alternates: %s" $err]
 653                                return
 654                        }
 655                }
 656
 657                set tolink  [list]
 658                set buckets [glob \
 659                        -tails \
 660                        -nocomplain \
 661                        -directory [file join $objdir] ??]
 662                set bcnt [expr {[llength $buckets] + 2}]
 663                set bcur 1
 664                $o_cons update $bcur $bcnt
 665                update
 666
 667                file mkdir [file join .git objects pack]
 668                foreach i [glob -tails -nocomplain \
 669                        -directory [file join $objdir pack] *] {
 670                        lappend tolink [file join pack $i]
 671                }
 672                $o_cons update [incr bcur] $bcnt
 673                update
 674
 675                foreach i $buckets {
 676                        file mkdir [file join .git objects $i]
 677                        foreach j [glob -tails -nocomplain \
 678                                -directory [file join $objdir $i] *] {
 679                                lappend tolink [file join $i $j]
 680                        }
 681                        $o_cons update [incr bcur] $bcnt
 682                        update
 683                }
 684                $o_cons stop
 685
 686                if {$tolink eq {}} {
 687                        info_popup [strcat \
 688                                [mc "Nothing to clone from %s." $origin_url] \
 689                                "\n" \
 690                                [mc "The 'master' branch has not been initialized."] \
 691                                ]
 692                        destroy $w_body
 693                        set done 1
 694                        return
 695                }
 696
 697                set i [lindex $tolink 0]
 698                if {[catch {
 699                                file link -hard \
 700                                        [file join .git objects $i] \
 701                                        [file join $objdir $i]
 702                        } err]} {
 703                        info_popup [mc "Hardlinks are unavailable.  Falling back to copying."]
 704                        set i [_copy_files $this $objdir $tolink]
 705                } else {
 706                        set i [_link_files $this $objdir [lrange $tolink 1 end]]
 707                }
 708                if {!$i} return
 709
 710                destroy $w_body
 711        }
 712        full {
 713                set o_cons [console::embed \
 714                        $w_body \
 715                        [mc "Cloning from %s" $origin_url]]
 716                pack $w_body -fill both -expand 1 -padx 10
 717                $o_cons exec \
 718                        [list git fetch --no-tags -k $origin_name] \
 719                        [cb _do_clone_tags]
 720        }
 721        shared {
 722                set fd [open [gitdir objects info alternates] w]
 723                fconfigure $fd -translation binary
 724                puts $fd $objdir
 725                close $fd
 726        }
 727        }
 728
 729        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 730                if {![_clone_refs $this]} return
 731                set pwd [pwd]
 732                if {[catch {
 733                                cd $origin_url
 734                                set HEAD [git rev-parse --verify HEAD^0]
 735                        } err]} {
 736                        _clone_failed $this [mc "Not a Git repository: %s" [file tail $origin_url]]
 737                        return 0
 738                }
 739                cd $pwd
 740                _do_clone_checkout $this $HEAD
 741        }
 742}
 743
 744method _copy_files {objdir tocopy} {
 745        $o_cons start \
 746                [mc "Copying objects"] \
 747                [mc "KiB"]
 748        set tot 0
 749        set cmp 0
 750        foreach p $tocopy {
 751                incr tot [file size [file join $objdir $p]]
 752        }
 753        foreach p $tocopy {
 754                if {[catch {
 755                                set f_in [open [file join $objdir $p] r]
 756                                set f_cp [open [file join .git objects $p] w]
 757                                fconfigure $f_in -translation binary -encoding binary
 758                                fconfigure $f_cp -translation binary -encoding binary
 759
 760                                while {![eof $f_in]} {
 761                                        incr cmp [fcopy $f_in $f_cp -size 16384]
 762                                        $o_cons update \
 763                                                [expr {$cmp / 1024}] \
 764                                                [expr {$tot / 1024}]
 765                                        update
 766                                }
 767
 768                                close $f_in
 769                                close $f_cp
 770                        } err]} {
 771                        _clone_failed $this [mc "Unable to copy object: %s" $err]
 772                        return 0
 773                }
 774        }
 775        return 1
 776}
 777
 778method _link_files {objdir tolink} {
 779        set total [llength $tolink]
 780        $o_cons start \
 781                [mc "Linking objects"] \
 782                [mc "objects"]
 783        for {set i 0} {$i < $total} {} {
 784                set p [lindex $tolink $i]
 785                if {[catch {
 786                                file link -hard \
 787                                        [file join .git objects $p] \
 788                                        [file join $objdir $p]
 789                        } err]} {
 790                        _clone_failed $this [mc "Unable to hardlink object: %s" $err]
 791                        return 0
 792                }
 793
 794                incr i
 795                if {$i % 5 == 0} {
 796                        $o_cons update $i $total
 797                        update
 798                }
 799        }
 800        return 1
 801}
 802
 803method _clone_refs {} {
 804        set pwd [pwd]
 805        if {[catch {cd $origin_url} err]} {
 806                error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 807                return 0
 808        }
 809        set fd_in [git_read for-each-ref \
 810                --tcl \
 811                {--format=list %(refname) %(objectname) %(*objectname)}]
 812        cd $pwd
 813
 814        set fd [open [gitdir packed-refs] w]
 815        fconfigure $fd -translation binary
 816        puts $fd "# pack-refs with: peeled"
 817        while {[gets $fd_in line] >= 0} {
 818                set line [eval $line]
 819                set refn [lindex $line 0]
 820                set robj [lindex $line 1]
 821                set tobj [lindex $line 2]
 822
 823                if {[regsub ^refs/heads/ $refn \
 824                        "refs/remotes/$origin_name/" refn]} {
 825                        puts $fd "$robj $refn"
 826                } elseif {[string match refs/tags/* $refn]} {
 827                        puts $fd "$robj $refn"
 828                        if {$tobj ne {}} {
 829                                puts $fd "^$tobj"
 830                        }
 831                }
 832        }
 833        close $fd_in
 834        close $fd
 835        return 1
 836}
 837
 838method _do_clone_tags {ok} {
 839        if {$ok} {
 840                $o_cons exec \
 841                        [list git fetch --tags -k $origin_name] \
 842                        [cb _do_clone_HEAD]
 843        } else {
 844                $o_cons done $ok
 845                _clone_failed $this [mc "Cannot fetch branches and objects.  See console output for details."]
 846        }
 847}
 848
 849method _do_clone_HEAD {ok} {
 850        if {$ok} {
 851                $o_cons exec \
 852                        [list git fetch $origin_name HEAD] \
 853                        [cb _do_clone_full_end]
 854        } else {
 855                $o_cons done $ok
 856                _clone_failed $this [mc "Cannot fetch tags.  See console output for details."]
 857        }
 858}
 859
 860method _do_clone_full_end {ok} {
 861        $o_cons done $ok
 862
 863        if {$ok} {
 864                destroy $w_body
 865
 866                set HEAD {}
 867                if {[file exists [gitdir FETCH_HEAD]]} {
 868                        set fd [open [gitdir FETCH_HEAD] r]
 869                        while {[gets $fd line] >= 0} {
 870                                if {[regexp "^(.{40})\t\t" $line line HEAD]} {
 871                                        break
 872                                }
 873                        }
 874                        close $fd
 875                }
 876
 877                catch {git pack-refs}
 878                _do_clone_checkout $this $HEAD
 879        } else {
 880                _clone_failed $this [mc "Cannot determine HEAD.  See console output for details."]
 881        }
 882}
 883
 884method _clone_failed {{why {}}} {
 885        if {[catch {file delete -force $local_path} err]} {
 886                set why [strcat \
 887                        $why \
 888                        "\n\n" \
 889                        [mc "Unable to cleanup %s" $local_path] \
 890                        "\n\n" \
 891                        $err]
 892        }
 893        if {$why ne {}} {
 894                update
 895                error_popup [strcat [mc "Clone failed."] "\n" $why]
 896        }
 897}
 898
 899method _do_clone_checkout {HEAD} {
 900        if {$HEAD eq {}} {
 901                info_popup [strcat \
 902                        [mc "No default branch obtained."] \
 903                        "\n" \
 904                        [mc "The 'master' branch has not been initialized."] \
 905                        ]
 906                set done 1
 907                return
 908        }
 909        if {[catch {
 910                        git update-ref HEAD $HEAD^0
 911                } err]} {
 912                info_popup [strcat \
 913                        [mc "Cannot resolve %s as a commit." $HEAD^0] \
 914                        "\n  $err" \
 915                        "\n" \
 916                        [mc "The 'master' branch has not been initialized."] \
 917                        ]
 918                set done 1
 919                return
 920        }
 921
 922        set o_cons [status_bar::two_line $w_body]
 923        pack $w_body -fill x -padx 10 -pady 10
 924        $o_cons start \
 925                [mc "Creating working directory"] \
 926                [mc "files"]
 927
 928        set readtree_err {}
 929        set fd [git_read --stderr read-tree \
 930                -m \
 931                -u \
 932                -v \
 933                HEAD \
 934                HEAD \
 935                ]
 936        fconfigure $fd -blocking 0 -translation binary
 937        fileevent $fd readable [cb _readtree_wait $fd]
 938}
 939
 940method _readtree_wait {fd} {
 941        set buf [read $fd]
 942        $o_cons update_meter $buf
 943        append readtree_err $buf
 944
 945        fconfigure $fd -blocking 1
 946        if {![eof $fd]} {
 947                fconfigure $fd -blocking 0
 948                return
 949        }
 950
 951        if {[catch {close $fd}]} {
 952                set err $readtree_err
 953                regsub {^fatal: } $err {} err
 954                error_popup [strcat \
 955                        [mc "Initial file checkout failed."] \
 956                        "\n\n$err"]
 957                return
 958        }
 959
 960        set done 1
 961}
 962
 963######################################################################
 964##
 965## Open Existing Repository
 966
 967method _do_open {} {
 968        $w_next conf \
 969                -state disabled \
 970                -command [cb _do_open2] \
 971                -text [mc "Open"]
 972
 973        frame $w_body
 974        label $w_body.h \
 975                -font font_uibold \
 976                -text [mc "Open Existing Repository"]
 977        pack $w_body.h -side top -fill x -pady 10
 978        pack $w_body -fill x -padx 10
 979
 980        frame $w_body.where
 981        label $w_body.where.l -text [mc "Repository:"]
 982        entry $w_body.where.t \
 983                -textvariable @local_path \
 984                -font font_diff \
 985                -width 50
 986        button $w_body.where.b \
 987                -text [mc "Browse"] \
 988                -command [cb _open_local_path]
 989
 990        pack $w_body.where.b -side right
 991        pack $w_body.where.l -side left
 992        pack $w_body.where.t -fill x
 993        pack $w_body.where -fill x
 994
 995        trace add variable @local_path write [cb _write_local_path]
 996        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
 997        update
 998        focus $w_body.where.t
 999}
1000
1001method _open_local_path {} {
1002        if {$local_path ne {}} {
1003                set p $local_path
1004        } else {
1005                set p [_home]
1006        }
1007
1008        set p [tk_chooseDirectory \
1009                -initialdir $p \
1010                -parent $top \
1011                -title [mc "Git Repository"] \
1012                -mustexist true]
1013        if {$p eq {}} return
1014
1015        set p [file normalize $p]
1016        if {![_is_git [file join $p .git]]} {
1017                error_popup [mc "Not a Git repository: %s" [file tail $p]]
1018                return
1019        }
1020        set local_path $p
1021}
1022
1023method _do_open2 {} {
1024        if {![_is_git [file join $local_path .git]]} {
1025                error_popup [mc "Not a Git repository: %s" [file tail $local_path]]
1026                return
1027        }
1028
1029        if {[catch {cd $local_path} err]} {
1030                error_popup [strcat \
1031                        [mc "Failed to open repository %s:" $local_path] \
1032                        "\n\n$err"]
1033                return
1034        }
1035
1036        _append_recentrepos [pwd]
1037        set ::_gitdir .git
1038        set ::_prefix {}
1039        set done 1
1040}
1041
1042}