Andrew's git / gitweb.git / git-gui/lib/choose_repository.tcl
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git-gui / lib / choose_repository.tclon commit Show usage string for 'git get-tar-commit-id -h' (e9dd085)
   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 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                        $w.mbar.apple add command \
  47                                -label [mc "Show SSH Key"] \
  48                                -command do_ssh_key
  49                } else {
  50                        $w.mbar add cascade -label [mc Help] -menu $w.mbar.help
  51                        menu $w.mbar.help
  52                        $w.mbar.help add command \
  53                                -label [mc "About %s" [appname]] \
  54                                -command do_about
  55                        $w.mbar.help add command \
  56                                -label [mc "Show SSH Key"] \
  57                                -command do_ssh_key
  58                }
  59
  60                wm protocol $top WM_DELETE_WINDOW exit
  61                bind $top <$M1B-q> exit
  62                bind $top <$M1B-Q> exit
  63                bind $top <Key-Escape> exit
  64        } else {
  65                wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
  66                bind $top <Key-Escape> [list destroy $top]
  67                set m_repo {}
  68        }
  69
  70        pack [git_logo $w.git_logo] -side left -fill y -padx 10 -pady 10
  71
  72        set w_body $w.body
  73        set opts $w_body.options
  74        frame $w_body
  75        text $opts \
  76                -cursor $::cursor_ptr \
  77                -relief flat \
  78                -background [$w_body cget -background] \
  79                -wrap none \
  80                -spacing1 5 \
  81                -width 50 \
  82                -height 3
  83        pack $opts -anchor w -fill x
  84
  85        $opts tag conf link_new -foreground blue -underline 1
  86        $opts tag bind link_new <1> [cb _next new]
  87        $opts insert end [mc "Create New Repository"] link_new
  88        $opts insert end "\n"
  89        if {$m_repo ne {}} {
  90                $m_repo add command \
  91                        -command [cb _next new] \
  92                        -accelerator $M1T-N \
  93                        -label [mc "New..."]
  94                bind $top <$M1B-n> [cb _next new]
  95                bind $top <$M1B-N> [cb _next new]
  96        }
  97
  98        $opts tag conf link_clone -foreground blue -underline 1
  99        $opts tag bind link_clone <1> [cb _next clone]
 100        $opts insert end [mc "Clone Existing Repository"] link_clone
 101        $opts insert end "\n"
 102        if {$m_repo ne {}} {
 103                $m_repo add command \
 104                        -command [cb _next clone] \
 105                        -accelerator $M1T-C \
 106                        -label [mc "Clone..."]
 107                bind $top <$M1B-c> [cb _next clone]
 108                bind $top <$M1B-C> [cb _next clone]
 109        }
 110
 111        $opts tag conf link_open -foreground blue -underline 1
 112        $opts tag bind link_open <1> [cb _next open]
 113        $opts insert end [mc "Open Existing Repository"] link_open
 114        $opts insert end "\n"
 115        if {$m_repo ne {}} {
 116                $m_repo add command \
 117                        -command [cb _next open] \
 118                        -accelerator $M1T-O \
 119                        -label [mc "Open..."]
 120                bind $top <$M1B-o> [cb _next open]
 121                bind $top <$M1B-O> [cb _next open]
 122        }
 123
 124        $opts conf -state disabled
 125
 126        set sorted_recent [_get_recentrepos]
 127        if {[llength $sorted_recent] > 0} {
 128                if {$m_repo ne {}} {
 129                        $m_repo add separator
 130                        $m_repo add command \
 131                                -state disabled \
 132                                -label [mc "Recent Repositories"]
 133                }
 134
 135                label $w_body.space
 136                label $w_body.recentlabel \
 137                        -anchor w \
 138                        -text [mc "Open Recent Repository:"]
 139                set w_recentlist $w_body.recentlist
 140                text $w_recentlist \
 141                        -cursor $::cursor_ptr \
 142                        -relief flat \
 143                        -background [$w_body.recentlabel cget -background] \
 144                        -wrap none \
 145                        -width 50 \
 146                        -height 10
 147                $w_recentlist tag conf link \
 148                        -foreground blue \
 149                        -underline 1
 150                set home $::env(HOME)
 151                if {[is_Cygwin]} {
 152                        set home [exec cygpath --windows --absolute $home]
 153                }
 154                set home "[file normalize $home]/"
 155                set hlen [string length $home]
 156                foreach p $sorted_recent {
 157                        set path $p
 158                        if {[string equal -length $hlen $home $p]} {
 159                                set p "~/[string range $p $hlen end]"
 160                        }
 161                        regsub -all "\n" $p "\\n" p
 162                        $w_recentlist insert end $p link
 163                        $w_recentlist insert end "\n"
 164
 165                        if {$m_repo ne {}} {
 166                                $m_repo add command \
 167                                        -command [cb _open_recent_path $path] \
 168                                        -label "    $p"
 169                        }
 170                }
 171                $w_recentlist conf -state disabled
 172                $w_recentlist tag bind link <1> [cb _open_recent %x,%y]
 173                pack $w_body.space -anchor w -fill x
 174                pack $w_body.recentlabel -anchor w -fill x
 175                pack $w_recentlist -anchor w -fill x
 176        }
 177        pack $w_body -fill x -padx 10 -pady 10
 178
 179        frame $w.buttons
 180        set w_next $w.buttons.next
 181        set w_quit $w.buttons.quit
 182        button $w_quit \
 183                -text [mc "Quit"] \
 184                -command exit
 185        pack $w_quit -side right -padx 5
 186        pack $w.buttons -side bottom -fill x -padx 10 -pady 10
 187
 188        if {$m_repo ne {}} {
 189                $m_repo add separator
 190                $m_repo add command \
 191                        -label [mc Quit] \
 192                        -command exit \
 193                        -accelerator $M1T-Q
 194        }
 195
 196        bind $top <Return> [cb _invoke_next]
 197        bind $top <Visibility> "
 198                [cb _center]
 199                grab $top
 200                focus $top
 201                bind $top <Visibility> {}
 202        "
 203        wm deiconify $top
 204        tkwait variable @done
 205
 206        if {$top eq {.}} {
 207                eval destroy [winfo children $top]
 208        }
 209}
 210
 211proc _home {} {
 212        if {[catch {set h $::env(HOME)}]
 213                || ![file isdirectory $h]} {
 214                set h .
 215        }
 216        return $h
 217}
 218
 219method _center {} {
 220        set nx [winfo reqwidth $top]
 221        set ny [winfo reqheight $top]
 222        set rx [expr {([winfo screenwidth  $top] - $nx) / 3}]
 223        set ry [expr {([winfo screenheight $top] - $ny) / 3}]
 224        wm geometry $top [format {+%d+%d} $rx $ry]
 225}
 226
 227method _invoke_next {} {
 228        if {[winfo exists $w_next]} {
 229                uplevel #0 [$w_next cget -command]
 230        }
 231}
 232
 233proc _get_recentrepos {} {
 234        set recent [list]
 235        foreach p [get_config gui.recentrepo] {
 236                if {[_is_git [file join $p .git]]} {
 237                        lappend recent $p
 238                }
 239        }
 240        return [lsort $recent]
 241}
 242
 243proc _unset_recentrepo {p} {
 244        regsub -all -- {([()\[\]{}\.^$+*?\\])} $p {\\\1} p
 245        git config --global --unset gui.recentrepo "^$p\$"
 246}
 247
 248proc _append_recentrepos {path} {
 249        set path [file normalize $path]
 250        set recent [get_config gui.recentrepo]
 251
 252        if {[lindex $recent end] eq $path} {
 253                return
 254        }
 255
 256        set i [lsearch $recent $path]
 257        if {$i >= 0} {
 258                _unset_recentrepo $path
 259                set recent [lreplace $recent $i $i]
 260        }
 261
 262        lappend recent $path
 263        git config --global --add gui.recentrepo $path
 264
 265        while {[llength $recent] > 10} {
 266                _unset_recentrepo [lindex $recent 0]
 267                set recent [lrange $recent 1 end]
 268        }
 269}
 270
 271method _open_recent {xy} {
 272        set id [lindex [split [$w_recentlist index @$xy] .] 0]
 273        set local_path [lindex $sorted_recent [expr {$id - 1}]]
 274        _do_open2 $this
 275}
 276
 277method _open_recent_path {p} {
 278        set local_path $p
 279        _do_open2 $this
 280}
 281
 282method _next {action} {
 283        destroy $w_body
 284        if {![winfo exists $w_next]} {
 285                button $w_next -default active
 286                pack $w_next -side right -padx 5 -before $w_quit
 287        }
 288        _do_$action $this
 289}
 290
 291method _write_local_path {args} {
 292        if {$local_path eq {}} {
 293                $w_next conf -state disabled
 294        } else {
 295                $w_next conf -state normal
 296        }
 297}
 298
 299method _git_init {} {
 300        if {[catch {file mkdir $local_path} err]} {
 301                error_popup [strcat \
 302                        [mc "Failed to create repository %s:" $local_path] \
 303                        "\n\n$err"]
 304                return 0
 305        }
 306
 307        if {[catch {cd $local_path} err]} {
 308                error_popup [strcat \
 309                        [mc "Failed to create repository %s:" $local_path] \
 310                        "\n\n$err"]
 311                return 0
 312        }
 313
 314        if {[catch {git init} err]} {
 315                error_popup [strcat \
 316                        [mc "Failed to create repository %s:" $local_path] \
 317                        "\n\n$err"]
 318                return 0
 319        }
 320
 321        _append_recentrepos [pwd]
 322        set ::_gitdir .git
 323        set ::_prefix {}
 324        return 1
 325}
 326
 327proc _is_git {path} {
 328        if {[file exists [file join $path HEAD]]
 329         && [file exists [file join $path objects]]
 330         && [file exists [file join $path config]]} {
 331                return 1
 332        }
 333        if {[is_Cygwin]} {
 334                if {[file exists [file join $path HEAD]]
 335                 && [file exists [file join $path objects.lnk]]
 336                 && [file exists [file join $path config.lnk]]} {
 337                        return 1
 338                }
 339        }
 340        return 0
 341}
 342
 343proc _objdir {path} {
 344        set objdir [file join $path .git objects]
 345        if {[file isdirectory $objdir]} {
 346                return $objdir
 347        }
 348
 349        set objdir [file join $path objects]
 350        if {[file isdirectory $objdir]} {
 351                return $objdir
 352        }
 353
 354        if {[is_Cygwin]} {
 355                set objdir [file join $path .git objects.lnk]
 356                if {[file isfile $objdir]} {
 357                        return [win32_read_lnk $objdir]
 358                }
 359
 360                set objdir [file join $path objects.lnk]
 361                if {[file isfile $objdir]} {
 362                        return [win32_read_lnk $objdir]
 363                }
 364        }
 365
 366        return {}
 367}
 368
 369######################################################################
 370##
 371## Create New Repository
 372
 373method _do_new {} {
 374        $w_next conf \
 375                -state disabled \
 376                -command [cb _do_new2] \
 377                -text [mc "Create"]
 378
 379        frame $w_body
 380        label $w_body.h \
 381                -font font_uibold \
 382                -text [mc "Create New Repository"]
 383        pack $w_body.h -side top -fill x -pady 10
 384        pack $w_body -fill x -padx 10
 385
 386        frame $w_body.where
 387        label $w_body.where.l -text [mc "Directory:"]
 388        entry $w_body.where.t \
 389                -textvariable @local_path \
 390                -borderwidth 1 \
 391                -relief sunken \
 392                -width 50
 393        button $w_body.where.b \
 394                -text [mc "Browse"] \
 395                -command [cb _new_local_path]
 396        set w_localpath $w_body.where.t
 397
 398        grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
 399        pack $w_body.where -fill x
 400
 401        grid columnconfigure $w_body.where 1 -weight 1
 402
 403        trace add variable @local_path write [cb _write_local_path]
 404        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
 405        update
 406        focus $w_body.where.t
 407}
 408
 409method _new_local_path {} {
 410        if {$local_path ne {}} {
 411                set p [file dirname $local_path]
 412        } else {
 413                set p [_home]
 414        }
 415
 416        set p [tk_chooseDirectory \
 417                -initialdir $p \
 418                -parent $top \
 419                -title [mc "Git Repository"] \
 420                -mustexist false]
 421        if {$p eq {}} return
 422
 423        set p [file normalize $p]
 424        if {![_new_ok $p]} {
 425                return
 426        }
 427        set local_path $p
 428        $w_localpath icursor end
 429}
 430
 431method _do_new2 {} {
 432        if {![_new_ok $local_path]} {
 433                return
 434        }
 435        if {![_git_init $this]} {
 436                return
 437        }
 438        set done 1
 439}
 440
 441proc _new_ok {p} {
 442        if {[file isdirectory $p]} {
 443                if {[_is_git [file join $p .git]]} {
 444                        error_popup [mc "Directory %s already exists." $p]
 445                        return 0
 446                }
 447        } elseif {[file exists $p]} {
 448                error_popup [mc "File %s already exists." $p]
 449                return 0
 450        }
 451        return 1
 452}
 453
 454######################################################################
 455##
 456## Clone Existing Repository
 457
 458method _do_clone {} {
 459        $w_next conf \
 460                -state disabled \
 461                -command [cb _do_clone2] \
 462                -text [mc "Clone"]
 463
 464        frame $w_body
 465        label $w_body.h \
 466                -font font_uibold \
 467                -text [mc "Clone Existing Repository"]
 468        pack $w_body.h -side top -fill x -pady 10
 469        pack $w_body -fill x -padx 10
 470
 471        set args $w_body.args
 472        frame $w_body.args
 473        pack $args -fill both
 474
 475        label $args.origin_l -text [mc "Source Location:"]
 476        entry $args.origin_t \
 477                -textvariable @origin_url \
 478                -borderwidth 1 \
 479                -relief sunken \
 480                -width 50
 481        button $args.origin_b \
 482                -text [mc "Browse"] \
 483                -command [cb _open_origin]
 484        grid $args.origin_l $args.origin_t $args.origin_b -sticky ew
 485
 486        label $args.where_l -text [mc "Target Directory:"]
 487        entry $args.where_t \
 488                -textvariable @local_path \
 489                -borderwidth 1 \
 490                -relief sunken \
 491                -width 50
 492        button $args.where_b \
 493                -text [mc "Browse"] \
 494                -command [cb _new_local_path]
 495        grid $args.where_l $args.where_t $args.where_b -sticky ew
 496        set w_localpath $args.where_t
 497
 498        label $args.type_l -text [mc "Clone Type:"]
 499        frame $args.type_f
 500        set w_types [list]
 501        lappend w_types [radiobutton $args.type_f.hardlink \
 502                -state disabled \
 503                -anchor w \
 504                -text [mc "Standard (Fast, Semi-Redundant, Hardlinks)"] \
 505                -variable @clone_type \
 506                -value hardlink]
 507        lappend w_types [radiobutton $args.type_f.full \
 508                -state disabled \
 509                -anchor w \
 510                -text [mc "Full Copy (Slower, Redundant Backup)"] \
 511                -variable @clone_type \
 512                -value full]
 513        lappend w_types [radiobutton $args.type_f.shared \
 514                -state disabled \
 515                -anchor w \
 516                -text [mc "Shared (Fastest, Not Recommended, No Backup)"] \
 517                -variable @clone_type \
 518                -value shared]
 519        foreach r $w_types {
 520                pack $r -anchor w
 521        }
 522        grid $args.type_l $args.type_f -sticky new
 523
 524        grid columnconfigure $args 1 -weight 1
 525
 526        trace add variable @local_path write [cb _update_clone]
 527        trace add variable @origin_url write [cb _update_clone]
 528        bind $w_body.h <Destroy> "
 529                [list trace remove variable @local_path write [cb _update_clone]]
 530                [list trace remove variable @origin_url write [cb _update_clone]]
 531        "
 532        update
 533        focus $args.origin_t
 534}
 535
 536method _open_origin {} {
 537        if {$origin_url ne {} && [file isdirectory $origin_url]} {
 538                set p $origin_url
 539        } else {
 540                set p [_home]
 541        }
 542
 543        set p [tk_chooseDirectory \
 544                -initialdir $p \
 545                -parent $top \
 546                -title [mc "Git Repository"] \
 547                -mustexist true]
 548        if {$p eq {}} return
 549
 550        set p [file normalize $p]
 551        if {![_is_git [file join $p .git]] && ![_is_git $p]} {
 552                error_popup [mc "Not a Git repository: %s" [file tail $p]]
 553                return
 554        }
 555        set origin_url $p
 556}
 557
 558method _update_clone {args} {
 559        if {$local_path ne {} && $origin_url ne {}} {
 560                $w_next conf -state normal
 561        } else {
 562                $w_next conf -state disabled
 563        }
 564
 565        if {$origin_url ne {} &&
 566                (  [_is_git [file join $origin_url .git]]
 567                || [_is_git $origin_url])} {
 568                set e normal
 569                if {[[lindex $w_types 0] cget -state] eq {disabled}} {
 570                        set clone_type hardlink
 571                }
 572        } else {
 573                set e disabled
 574                set clone_type full
 575        }
 576
 577        foreach r $w_types {
 578                $r conf -state $e
 579        }
 580}
 581
 582method _do_clone2 {} {
 583        if {[file isdirectory $origin_url]} {
 584                set origin_url [file normalize $origin_url]
 585        }
 586
 587        if {$clone_type eq {hardlink} && ![file isdirectory $origin_url]} {
 588                error_popup [mc "Standard only available for local repository."]
 589                return
 590        }
 591        if {$clone_type eq {shared} && ![file isdirectory $origin_url]} {
 592                error_popup [mc "Shared only available for local repository."]
 593                return
 594        }
 595
 596        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 597                set objdir [_objdir $origin_url]
 598                if {$objdir eq {}} {
 599                        error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 600                        return
 601                }
 602        }
 603
 604        set giturl $origin_url
 605        if {[is_Cygwin] && [file isdirectory $giturl]} {
 606                set giturl [exec cygpath --unix --absolute $giturl]
 607                if {$clone_type eq {shared}} {
 608                        set objdir [exec cygpath --unix --absolute $objdir]
 609                }
 610        }
 611
 612        if {[file exists $local_path]} {
 613                error_popup [mc "Location %s already exists." $local_path]
 614                return
 615        }
 616
 617        if {![_git_init $this]} return
 618        set local_path [pwd]
 619
 620        if {[catch {
 621                        git config remote.$origin_name.url $giturl
 622                        git config remote.$origin_name.fetch +refs/heads/*:refs/remotes/$origin_name/*
 623                } err]} {
 624                error_popup [strcat [mc "Failed to configure origin"] "\n\n$err"]
 625                return
 626        }
 627
 628        destroy $w_body $w_next
 629
 630        switch -exact -- $clone_type {
 631        hardlink {
 632                set o_cons [status_bar::two_line $w_body]
 633                pack $w_body -fill x -padx 10 -pady 10
 634
 635                $o_cons start \
 636                        [mc "Counting objects"] \
 637                        [mc "buckets"]
 638                update
 639
 640                if {[file exists [file join $objdir info alternates]]} {
 641                        set pwd [pwd]
 642                        if {[catch {
 643                                file mkdir [gitdir objects info]
 644                                set f_in [open [file join $objdir info alternates] r]
 645                                set f_cp [open [gitdir objects info alternates] w]
 646                                fconfigure $f_in -translation binary -encoding binary
 647                                fconfigure $f_cp -translation binary -encoding binary
 648                                cd $objdir
 649                                while {[gets $f_in line] >= 0} {
 650                                        if {[is_Cygwin]} {
 651                                                puts $f_cp [exec cygpath --unix --absolute $line]
 652                                        } else {
 653                                                puts $f_cp [file normalize $line]
 654                                        }
 655                                }
 656                                close $f_in
 657                                close $f_cp
 658                                cd $pwd
 659                        } err]} {
 660                                catch {cd $pwd}
 661                                _clone_failed $this [mc "Unable to copy objects/info/alternates: %s" $err]
 662                                return
 663                        }
 664                }
 665
 666                set tolink  [list]
 667                set buckets [glob \
 668                        -tails \
 669                        -nocomplain \
 670                        -directory [file join $objdir] ??]
 671                set bcnt [expr {[llength $buckets] + 2}]
 672                set bcur 1
 673                $o_cons update $bcur $bcnt
 674                update
 675
 676                file mkdir [file join .git objects pack]
 677                foreach i [glob -tails -nocomplain \
 678                        -directory [file join $objdir pack] *] {
 679                        lappend tolink [file join pack $i]
 680                }
 681                $o_cons update [incr bcur] $bcnt
 682                update
 683
 684                foreach i $buckets {
 685                        file mkdir [file join .git objects $i]
 686                        foreach j [glob -tails -nocomplain \
 687                                -directory [file join $objdir $i] *] {
 688                                lappend tolink [file join $i $j]
 689                        }
 690                        $o_cons update [incr bcur] $bcnt
 691                        update
 692                }
 693                $o_cons stop
 694
 695                if {$tolink eq {}} {
 696                        info_popup [strcat \
 697                                [mc "Nothing to clone from %s." $origin_url] \
 698                                "\n" \
 699                                [mc "The 'master' branch has not been initialized."] \
 700                                ]
 701                        destroy $w_body
 702                        set done 1
 703                        return
 704                }
 705
 706                set i [lindex $tolink 0]
 707                if {[catch {
 708                                file link -hard \
 709                                        [file join .git objects $i] \
 710                                        [file join $objdir $i]
 711                        } err]} {
 712                        info_popup [mc "Hardlinks are unavailable.  Falling back to copying."]
 713                        set i [_copy_files $this $objdir $tolink]
 714                } else {
 715                        set i [_link_files $this $objdir [lrange $tolink 1 end]]
 716                }
 717                if {!$i} return
 718
 719                destroy $w_body
 720        }
 721        full {
 722                set o_cons [console::embed \
 723                        $w_body \
 724                        [mc "Cloning from %s" $origin_url]]
 725                pack $w_body -fill both -expand 1 -padx 10
 726                $o_cons exec \
 727                        [list git fetch --no-tags -k $origin_name] \
 728                        [cb _do_clone_tags]
 729        }
 730        shared {
 731                set fd [open [gitdir objects info alternates] w]
 732                fconfigure $fd -translation binary
 733                puts $fd $objdir
 734                close $fd
 735        }
 736        }
 737
 738        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 739                if {![_clone_refs $this]} return
 740                set pwd [pwd]
 741                if {[catch {
 742                                cd $origin_url
 743                                set HEAD [git rev-parse --verify HEAD^0]
 744                        } err]} {
 745                        _clone_failed $this [mc "Not a Git repository: %s" [file tail $origin_url]]
 746                        return 0
 747                }
 748                cd $pwd
 749                _do_clone_checkout $this $HEAD
 750        }
 751}
 752
 753method _copy_files {objdir tocopy} {
 754        $o_cons start \
 755                [mc "Copying objects"] \
 756                [mc "KiB"]
 757        set tot 0
 758        set cmp 0
 759        foreach p $tocopy {
 760                incr tot [file size [file join $objdir $p]]
 761        }
 762        foreach p $tocopy {
 763                if {[catch {
 764                                set f_in [open [file join $objdir $p] r]
 765                                set f_cp [open [file join .git objects $p] w]
 766                                fconfigure $f_in -translation binary -encoding binary
 767                                fconfigure $f_cp -translation binary -encoding binary
 768
 769                                while {![eof $f_in]} {
 770                                        incr cmp [fcopy $f_in $f_cp -size 16384]
 771                                        $o_cons update \
 772                                                [expr {$cmp / 1024}] \
 773                                                [expr {$tot / 1024}]
 774                                        update
 775                                }
 776
 777                                close $f_in
 778                                close $f_cp
 779                        } err]} {
 780                        _clone_failed $this [mc "Unable to copy object: %s" $err]
 781                        return 0
 782                }
 783        }
 784        return 1
 785}
 786
 787method _link_files {objdir tolink} {
 788        set total [llength $tolink]
 789        $o_cons start \
 790                [mc "Linking objects"] \
 791                [mc "objects"]
 792        for {set i 0} {$i < $total} {} {
 793                set p [lindex $tolink $i]
 794                if {[catch {
 795                                file link -hard \
 796                                        [file join .git objects $p] \
 797                                        [file join $objdir $p]
 798                        } err]} {
 799                        _clone_failed $this [mc "Unable to hardlink object: %s" $err]
 800                        return 0
 801                }
 802
 803                incr i
 804                if {$i % 5 == 0} {
 805                        $o_cons update $i $total
 806                        update
 807                }
 808        }
 809        return 1
 810}
 811
 812method _clone_refs {} {
 813        set pwd [pwd]
 814        if {[catch {cd $origin_url} err]} {
 815                error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 816                return 0
 817        }
 818        set fd_in [git_read for-each-ref \
 819                --tcl \
 820                {--format=list %(refname) %(objectname) %(*objectname)}]
 821        cd $pwd
 822
 823        set fd [open [gitdir packed-refs] w]
 824        fconfigure $fd -translation binary
 825        puts $fd "# pack-refs with: peeled"
 826        while {[gets $fd_in line] >= 0} {
 827                set line [eval $line]
 828                set refn [lindex $line 0]
 829                set robj [lindex $line 1]
 830                set tobj [lindex $line 2]
 831
 832                if {[regsub ^refs/heads/ $refn \
 833                        "refs/remotes/$origin_name/" refn]} {
 834                        puts $fd "$robj $refn"
 835                } elseif {[string match refs/tags/* $refn]} {
 836                        puts $fd "$robj $refn"
 837                        if {$tobj ne {}} {
 838                                puts $fd "^$tobj"
 839                        }
 840                }
 841        }
 842        close $fd_in
 843        close $fd
 844        return 1
 845}
 846
 847method _do_clone_tags {ok} {
 848        if {$ok} {
 849                $o_cons exec \
 850                        [list git fetch --tags -k $origin_name] \
 851                        [cb _do_clone_HEAD]
 852        } else {
 853                $o_cons done $ok
 854                _clone_failed $this [mc "Cannot fetch branches and objects.  See console output for details."]
 855        }
 856}
 857
 858method _do_clone_HEAD {ok} {
 859        if {$ok} {
 860                $o_cons exec \
 861                        [list git fetch $origin_name HEAD] \
 862                        [cb _do_clone_full_end]
 863        } else {
 864                $o_cons done $ok
 865                _clone_failed $this [mc "Cannot fetch tags.  See console output for details."]
 866        }
 867}
 868
 869method _do_clone_full_end {ok} {
 870        $o_cons done $ok
 871
 872        if {$ok} {
 873                destroy $w_body
 874
 875                set HEAD {}
 876                if {[file exists [gitdir FETCH_HEAD]]} {
 877                        set fd [open [gitdir FETCH_HEAD] r]
 878                        while {[gets $fd line] >= 0} {
 879                                if {[regexp "^(.{40})\t\t" $line line HEAD]} {
 880                                        break
 881                                }
 882                        }
 883                        close $fd
 884                }
 885
 886                catch {git pack-refs}
 887                _do_clone_checkout $this $HEAD
 888        } else {
 889                _clone_failed $this [mc "Cannot determine HEAD.  See console output for details."]
 890        }
 891}
 892
 893method _clone_failed {{why {}}} {
 894        if {[catch {file delete -force $local_path} err]} {
 895                set why [strcat \
 896                        $why \
 897                        "\n\n" \
 898                        [mc "Unable to cleanup %s" $local_path] \
 899                        "\n\n" \
 900                        $err]
 901        }
 902        if {$why ne {}} {
 903                update
 904                error_popup [strcat [mc "Clone failed."] "\n" $why]
 905        }
 906}
 907
 908method _do_clone_checkout {HEAD} {
 909        if {$HEAD eq {}} {
 910                info_popup [strcat \
 911                        [mc "No default branch obtained."] \
 912                        "\n" \
 913                        [mc "The 'master' branch has not been initialized."] \
 914                        ]
 915                set done 1
 916                return
 917        }
 918        if {[catch {
 919                        git update-ref HEAD $HEAD^0
 920                } err]} {
 921                info_popup [strcat \
 922                        [mc "Cannot resolve %s as a commit." $HEAD^0] \
 923                        "\n  $err" \
 924                        "\n" \
 925                        [mc "The 'master' branch has not been initialized."] \
 926                        ]
 927                set done 1
 928                return
 929        }
 930
 931        set o_cons [status_bar::two_line $w_body]
 932        pack $w_body -fill x -padx 10 -pady 10
 933        $o_cons start \
 934                [mc "Creating working directory"] \
 935                [mc "files"]
 936
 937        set readtree_err {}
 938        set fd [git_read --stderr read-tree \
 939                -m \
 940                -u \
 941                -v \
 942                HEAD \
 943                HEAD \
 944                ]
 945        fconfigure $fd -blocking 0 -translation binary
 946        fileevent $fd readable [cb _readtree_wait $fd]
 947}
 948
 949method _readtree_wait {fd} {
 950        set buf [read $fd]
 951        $o_cons update_meter $buf
 952        append readtree_err $buf
 953
 954        fconfigure $fd -blocking 1
 955        if {![eof $fd]} {
 956                fconfigure $fd -blocking 0
 957                return
 958        }
 959
 960        if {[catch {close $fd}]} {
 961                set err $readtree_err
 962                regsub {^fatal: } $err {} err
 963                error_popup [strcat \
 964                        [mc "Initial file checkout failed."] \
 965                        "\n\n$err"]
 966                return
 967        }
 968
 969        # -- Run the post-checkout hook.
 970        #
 971        set fd_ph [githook_read post-checkout [string repeat 0 40] \
 972                [git rev-parse HEAD] 1]
 973        if {$fd_ph ne {}} {
 974                global pch_error
 975                set pch_error {}
 976                fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
 977                fileevent $fd_ph readable [cb _postcheckout_wait $fd_ph]
 978        } else {
 979                set done 1
 980        }
 981}
 982
 983method _postcheckout_wait {fd_ph} {
 984        global pch_error
 985
 986        append pch_error [read $fd_ph]
 987        fconfigure $fd_ph -blocking 1
 988        if {[eof $fd_ph]} {
 989                if {[catch {close $fd_ph}]} {
 990                        hook_failed_popup post-checkout $pch_error 0
 991                }
 992                unset pch_error
 993                set done 1
 994                return
 995        }
 996        fconfigure $fd_ph -blocking 0
 997}
 998
 999######################################################################
1000##
1001## Open Existing Repository
1002
1003method _do_open {} {
1004        $w_next conf \
1005                -state disabled \
1006                -command [cb _do_open2] \
1007                -text [mc "Open"]
1008
1009        frame $w_body
1010        label $w_body.h \
1011                -font font_uibold \
1012                -text [mc "Open Existing Repository"]
1013        pack $w_body.h -side top -fill x -pady 10
1014        pack $w_body -fill x -padx 10
1015
1016        frame $w_body.where
1017        label $w_body.where.l -text [mc "Repository:"]
1018        entry $w_body.where.t \
1019                -textvariable @local_path \
1020                -borderwidth 1 \
1021                -relief sunken \
1022                -width 50
1023        button $w_body.where.b \
1024                -text [mc "Browse"] \
1025                -command [cb _open_local_path]
1026
1027        grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
1028        pack $w_body.where -fill x
1029
1030        grid columnconfigure $w_body.where 1 -weight 1
1031
1032        trace add variable @local_path write [cb _write_local_path]
1033        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
1034        update
1035        focus $w_body.where.t
1036}
1037
1038method _open_local_path {} {
1039        if {$local_path ne {}} {
1040                set p $local_path
1041        } else {
1042                set p [_home]
1043        }
1044
1045        set p [tk_chooseDirectory \
1046                -initialdir $p \
1047                -parent $top \
1048                -title [mc "Git Repository"] \
1049                -mustexist true]
1050        if {$p eq {}} return
1051
1052        set p [file normalize $p]
1053        if {![_is_git [file join $p .git]]} {
1054                error_popup [mc "Not a Git repository: %s" [file tail $p]]
1055                return
1056        }
1057        set local_path $p
1058}
1059
1060method _do_open2 {} {
1061        if {![_is_git [file join $local_path .git]]} {
1062                error_popup [mc "Not a Git repository: %s" [file tail $local_path]]
1063                return
1064        }
1065
1066        if {[catch {cd $local_path} err]} {
1067                error_popup [strcat \
1068                        [mc "Failed to open repository %s:" $local_path] \
1069                        "\n\n$err"]
1070                return
1071        }
1072
1073        _append_recentrepos [pwd]
1074        set ::_gitdir .git
1075        set ::_prefix {}
1076        set done 1
1077}
1078
1079}