git-gui / lib / choose_repository.tclon commit Merge branch 'hg/maint-attr-fix' into maint (755f0e3)
   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 use_ttk NS
  26
  27        make_dialog 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        ${NS}::frame $w_body
  75        text $opts \
  76                -cursor $::cursor_ptr \
  77                -relief flat \
  78                -background [get_bg_color $w_body] \
  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                ${NS}::label $w_body.space
 136                ${NS}::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 [get_bg_color $w_body.recentlabel] \
 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        ${NS}::frame $w.buttons
 180        set w_next $w.buttons.next
 181        set w_quit $w.buttons.quit
 182        ${NS}::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        grab release $top
 207        if {$top eq {.}} {
 208                eval destroy [winfo children $top]
 209        }
 210}
 211
 212proc _home {} {
 213        if {[catch {set h $::env(HOME)}]
 214                || ![file isdirectory $h]} {
 215                set h .
 216        }
 217        return $h
 218}
 219
 220method _center {} {
 221        set nx [winfo reqwidth $top]
 222        set ny [winfo reqheight $top]
 223        set rx [expr {([winfo screenwidth  $top] - $nx) / 3}]
 224        set ry [expr {([winfo screenheight $top] - $ny) / 3}]
 225        wm geometry $top [format {+%d+%d} $rx $ry]
 226}
 227
 228method _invoke_next {} {
 229        if {[winfo exists $w_next]} {
 230                uplevel #0 [$w_next cget -command]
 231        }
 232}
 233
 234proc _get_recentrepos {} {
 235        set recent [list]
 236        foreach p [get_config gui.recentrepo] {
 237                if {[_is_git [file join $p .git]]} {
 238                        lappend recent $p
 239                } else {
 240                        _unset_recentrepo $p
 241                }
 242        }
 243        return [lsort $recent]
 244}
 245
 246proc _unset_recentrepo {p} {
 247        regsub -all -- {([()\[\]{}\.^$+*?\\])} $p {\\\1} p
 248        git config --global --unset gui.recentrepo "^$p\$"
 249        load_config 1
 250}
 251
 252proc _append_recentrepos {path} {
 253        set path [file normalize $path]
 254        set recent [get_config gui.recentrepo]
 255
 256        if {[lindex $recent end] eq $path} {
 257                return
 258        }
 259
 260        set i [lsearch $recent $path]
 261        if {$i >= 0} {
 262                _unset_recentrepo $path
 263                set recent [lreplace $recent $i $i]
 264        }
 265
 266        lappend recent $path
 267        git config --global --add gui.recentrepo $path
 268        load_config 1
 269
 270        while {[llength $recent] > 10} {
 271                _unset_recentrepo [lindex $recent 0]
 272                set recent [lrange $recent 1 end]
 273        }
 274}
 275
 276method _open_recent {xy} {
 277        set id [lindex [split [$w_recentlist index @$xy] .] 0]
 278        set local_path [lindex $sorted_recent [expr {$id - 1}]]
 279        _do_open2 $this
 280}
 281
 282method _open_recent_path {p} {
 283        set local_path $p
 284        _do_open2 $this
 285}
 286
 287method _next {action} {
 288        global NS
 289        destroy $w_body
 290        if {![winfo exists $w_next]} {
 291                ${NS}::button $w_next -default active
 292                pack $w_next -side right -padx 5 -before $w_quit
 293        }
 294        _do_$action $this
 295}
 296
 297method _write_local_path {args} {
 298        if {$local_path eq {}} {
 299                $w_next conf -state disabled
 300        } else {
 301                $w_next conf -state normal
 302        }
 303}
 304
 305method _git_init {} {
 306        if {[catch {file mkdir $local_path} err]} {
 307                error_popup [strcat \
 308                        [mc "Failed to create repository %s:" $local_path] \
 309                        "\n\n$err"]
 310                return 0
 311        }
 312
 313        if {[catch {cd $local_path} err]} {
 314                error_popup [strcat \
 315                        [mc "Failed to create repository %s:" $local_path] \
 316                        "\n\n$err"]
 317                return 0
 318        }
 319
 320        if {[catch {git init} err]} {
 321                error_popup [strcat \
 322                        [mc "Failed to create repository %s:" $local_path] \
 323                        "\n\n$err"]
 324                return 0
 325        }
 326
 327        _append_recentrepos [pwd]
 328        set ::_gitdir .git
 329        set ::_prefix {}
 330        return 1
 331}
 332
 333proc _is_git {path} {
 334        if {[file exists [file join $path HEAD]]
 335         && [file exists [file join $path objects]]
 336         && [file exists [file join $path config]]} {
 337                return 1
 338        }
 339        if {[is_Cygwin]} {
 340                if {[file exists [file join $path HEAD]]
 341                 && [file exists [file join $path objects.lnk]]
 342                 && [file exists [file join $path config.lnk]]} {
 343                        return 1
 344                }
 345        }
 346        return 0
 347}
 348
 349proc _objdir {path} {
 350        set objdir [file join $path .git objects]
 351        if {[file isdirectory $objdir]} {
 352                return $objdir
 353        }
 354
 355        set objdir [file join $path objects]
 356        if {[file isdirectory $objdir]} {
 357                return $objdir
 358        }
 359
 360        if {[is_Cygwin]} {
 361                set objdir [file join $path .git objects.lnk]
 362                if {[file isfile $objdir]} {
 363                        return [win32_read_lnk $objdir]
 364                }
 365
 366                set objdir [file join $path objects.lnk]
 367                if {[file isfile $objdir]} {
 368                        return [win32_read_lnk $objdir]
 369                }
 370        }
 371
 372        return {}
 373}
 374
 375######################################################################
 376##
 377## Create New Repository
 378
 379method _do_new {} {
 380        global use_ttk NS
 381        $w_next conf \
 382                -state disabled \
 383                -command [cb _do_new2] \
 384                -text [mc "Create"]
 385
 386        ${NS}::frame $w_body
 387        ${NS}::label $w_body.h \
 388                -font font_uibold -anchor center \
 389                -text [mc "Create New Repository"]
 390        pack $w_body.h -side top -fill x -pady 10
 391        pack $w_body -fill x -padx 10
 392
 393        ${NS}::frame $w_body.where
 394        ${NS}::label $w_body.where.l -text [mc "Directory:"]
 395        ${NS}::entry $w_body.where.t \
 396                -textvariable @local_path \
 397                -width 50
 398        ${NS}::button $w_body.where.b \
 399                -text [mc "Browse"] \
 400                -command [cb _new_local_path]
 401        set w_localpath $w_body.where.t
 402
 403        grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
 404        pack $w_body.where -fill x
 405
 406        grid columnconfigure $w_body.where 1 -weight 1
 407
 408        trace add variable @local_path write [cb _write_local_path]
 409        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
 410        update
 411        focus $w_body.where.t
 412}
 413
 414method _new_local_path {} {
 415        if {$local_path ne {}} {
 416                set p [file dirname $local_path]
 417        } else {
 418                set p [_home]
 419        }
 420
 421        set p [tk_chooseDirectory \
 422                -initialdir $p \
 423                -parent $top \
 424                -title [mc "Git Repository"] \
 425                -mustexist false]
 426        if {$p eq {}} return
 427
 428        set p [file normalize $p]
 429        if {![_new_ok $p]} {
 430                return
 431        }
 432        set local_path $p
 433        $w_localpath icursor end
 434}
 435
 436method _do_new2 {} {
 437        if {![_new_ok $local_path]} {
 438                return
 439        }
 440        if {![_git_init $this]} {
 441                return
 442        }
 443        set done 1
 444}
 445
 446proc _new_ok {p} {
 447        if {[file isdirectory $p]} {
 448                if {[_is_git [file join $p .git]]} {
 449                        error_popup [mc "Directory %s already exists." $p]
 450                        return 0
 451                }
 452        } elseif {[file exists $p]} {
 453                error_popup [mc "File %s already exists." $p]
 454                return 0
 455        }
 456        return 1
 457}
 458
 459######################################################################
 460##
 461## Clone Existing Repository
 462
 463method _do_clone {} {
 464        global use_ttk NS
 465        $w_next conf \
 466                -state disabled \
 467                -command [cb _do_clone2] \
 468                -text [mc "Clone"]
 469
 470        ${NS}::frame $w_body
 471        ${NS}::label $w_body.h \
 472                -font font_uibold -anchor center \
 473                -text [mc "Clone Existing Repository"]
 474        pack $w_body.h -side top -fill x -pady 10
 475        pack $w_body -fill x -padx 10
 476
 477        set args $w_body.args
 478        ${NS}::frame $w_body.args
 479        pack $args -fill both
 480
 481        ${NS}::label $args.origin_l -text [mc "Source Location:"]
 482        ${NS}::entry $args.origin_t \
 483                -textvariable @origin_url \
 484                -width 50
 485        ${NS}::button $args.origin_b \
 486                -text [mc "Browse"] \
 487                -command [cb _open_origin]
 488        grid $args.origin_l $args.origin_t $args.origin_b -sticky ew
 489
 490        ${NS}::label $args.where_l -text [mc "Target Directory:"]
 491        ${NS}::entry $args.where_t \
 492                -textvariable @local_path \
 493                -width 50
 494        ${NS}::button $args.where_b \
 495                -text [mc "Browse"] \
 496                -command [cb _new_local_path]
 497        grid $args.where_l $args.where_t $args.where_b -sticky ew
 498        set w_localpath $args.where_t
 499
 500        ${NS}::label $args.type_l -text [mc "Clone Type:"]
 501        ${NS}::frame $args.type_f
 502        set w_types [list]
 503        lappend w_types [${NS}::radiobutton $args.type_f.hardlink \
 504                -state disabled \
 505                -text [mc "Standard (Fast, Semi-Redundant, Hardlinks)"] \
 506                -variable @clone_type \
 507                -value hardlink]
 508        lappend w_types [${NS}::radiobutton $args.type_f.full \
 509                -state disabled \
 510                -text [mc "Full Copy (Slower, Redundant Backup)"] \
 511                -variable @clone_type \
 512                -value full]
 513        lappend w_types [${NS}::radiobutton $args.type_f.shared \
 514                -state disabled \
 515                -text [mc "Shared (Fastest, Not Recommended, No Backup)"] \
 516                -variable @clone_type \
 517                -value shared]
 518        foreach r $w_types {
 519                pack $r -anchor w
 520        }
 521        grid $args.type_l $args.type_f -sticky new
 522
 523        grid columnconfigure $args 1 -weight 1
 524
 525        trace add variable @local_path write [cb _update_clone]
 526        trace add variable @origin_url write [cb _update_clone]
 527        bind $w_body.h <Destroy> "
 528                [list trace remove variable @local_path write [cb _update_clone]]
 529                [list trace remove variable @origin_url write [cb _update_clone]]
 530        "
 531        update
 532        focus $args.origin_t
 533}
 534
 535method _open_origin {} {
 536        if {$origin_url ne {} && [file isdirectory $origin_url]} {
 537                set p $origin_url
 538        } else {
 539                set p [_home]
 540        }
 541
 542        set p [tk_chooseDirectory \
 543                -initialdir $p \
 544                -parent $top \
 545                -title [mc "Git Repository"] \
 546                -mustexist true]
 547        if {$p eq {}} return
 548
 549        set p [file normalize $p]
 550        if {![_is_git [file join $p .git]] && ![_is_git $p]} {
 551                error_popup [mc "Not a Git repository: %s" [file tail $p]]
 552                return
 553        }
 554        set origin_url $p
 555}
 556
 557method _update_clone {args} {
 558        if {$local_path ne {} && $origin_url ne {}} {
 559                $w_next conf -state normal
 560        } else {
 561                $w_next conf -state disabled
 562        }
 563
 564        if {$origin_url ne {} &&
 565                (  [_is_git [file join $origin_url .git]]
 566                || [_is_git $origin_url])} {
 567                set e normal
 568                if {[[lindex $w_types 0] cget -state] eq {disabled}} {
 569                        set clone_type hardlink
 570                }
 571        } else {
 572                set e disabled
 573                set clone_type full
 574        }
 575
 576        foreach r $w_types {
 577                $r conf -state $e
 578        }
 579}
 580
 581method _do_clone2 {} {
 582        if {[file isdirectory $origin_url]} {
 583                set origin_url [file normalize $origin_url]
 584        }
 585
 586        if {$clone_type eq {hardlink} && ![file isdirectory $origin_url]} {
 587                error_popup [mc "Standard only available for local repository."]
 588                return
 589        }
 590        if {$clone_type eq {shared} && ![file isdirectory $origin_url]} {
 591                error_popup [mc "Shared only available for local repository."]
 592                return
 593        }
 594
 595        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 596                set objdir [_objdir $origin_url]
 597                if {$objdir eq {}} {
 598                        error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 599                        return
 600                }
 601        }
 602
 603        set giturl $origin_url
 604        if {[is_Cygwin] && [file isdirectory $giturl]} {
 605                set giturl [exec cygpath --unix --absolute $giturl]
 606                if {$clone_type eq {shared}} {
 607                        set objdir [exec cygpath --unix --absolute $objdir]
 608                }
 609        }
 610
 611        if {[file exists $local_path]} {
 612                error_popup [mc "Location %s already exists." $local_path]
 613                return
 614        }
 615
 616        if {![_git_init $this]} return
 617        set local_path [pwd]
 618
 619        if {[catch {
 620                        git config remote.$origin_name.url $giturl
 621                        git config remote.$origin_name.fetch +refs/heads/*:refs/remotes/$origin_name/*
 622                } err]} {
 623                error_popup [strcat [mc "Failed to configure origin"] "\n\n$err"]
 624                return
 625        }
 626
 627        destroy $w_body $w_next
 628
 629        switch -exact -- $clone_type {
 630        hardlink {
 631                set o_cons [status_bar::two_line $w_body]
 632                pack $w_body -fill x -padx 10 -pady 10
 633
 634                $o_cons start \
 635                        [mc "Counting objects"] \
 636                        [mc "buckets"]
 637                update
 638
 639                if {[file exists [file join $objdir info alternates]]} {
 640                        set pwd [pwd]
 641                        if {[catch {
 642                                file mkdir [gitdir objects info]
 643                                set f_in [open [file join $objdir info alternates] r]
 644                                set f_cp [open [gitdir objects info alternates] w]
 645                                fconfigure $f_in -translation binary -encoding binary
 646                                fconfigure $f_cp -translation binary -encoding binary
 647                                cd $objdir
 648                                while {[gets $f_in line] >= 0} {
 649                                        if {[is_Cygwin]} {
 650                                                puts $f_cp [exec cygpath --unix --absolute $line]
 651                                        } else {
 652                                                puts $f_cp [file normalize $line]
 653                                        }
 654                                }
 655                                close $f_in
 656                                close $f_cp
 657                                cd $pwd
 658                        } err]} {
 659                                catch {cd $pwd}
 660                                _clone_failed $this [mc "Unable to copy objects/info/alternates: %s" $err]
 661                                return
 662                        }
 663                }
 664
 665                set tolink  [list]
 666                set buckets [glob \
 667                        -tails \
 668                        -nocomplain \
 669                        -directory [file join $objdir] ??]
 670                set bcnt [expr {[llength $buckets] + 2}]
 671                set bcur 1
 672                $o_cons update $bcur $bcnt
 673                update
 674
 675                file mkdir [file join .git objects pack]
 676                foreach i [glob -tails -nocomplain \
 677                        -directory [file join $objdir pack] *] {
 678                        lappend tolink [file join pack $i]
 679                }
 680                $o_cons update [incr bcur] $bcnt
 681                update
 682
 683                foreach i $buckets {
 684                        file mkdir [file join .git objects $i]
 685                        foreach j [glob -tails -nocomplain \
 686                                -directory [file join $objdir $i] *] {
 687                                lappend tolink [file join $i $j]
 688                        }
 689                        $o_cons update [incr bcur] $bcnt
 690                        update
 691                }
 692                $o_cons stop
 693
 694                if {$tolink eq {}} {
 695                        info_popup [strcat \
 696                                [mc "Nothing to clone from %s." $origin_url] \
 697                                "\n" \
 698                                [mc "The 'master' branch has not been initialized."] \
 699                                ]
 700                        destroy $w_body
 701                        set done 1
 702                        return
 703                }
 704
 705                set i [lindex $tolink 0]
 706                if {[catch {
 707                                file link -hard \
 708                                        [file join .git objects $i] \
 709                                        [file join $objdir $i]
 710                        } err]} {
 711                        info_popup [mc "Hardlinks are unavailable.  Falling back to copying."]
 712                        set i [_copy_files $this $objdir $tolink]
 713                } else {
 714                        set i [_link_files $this $objdir [lrange $tolink 1 end]]
 715                }
 716                if {!$i} return
 717
 718                destroy $w_body
 719        }
 720        full {
 721                set o_cons [console::embed \
 722                        $w_body \
 723                        [mc "Cloning from %s" $origin_url]]
 724                pack $w_body -fill both -expand 1 -padx 10
 725                $o_cons exec \
 726                        [list git fetch --no-tags -k $origin_name] \
 727                        [cb _do_clone_tags]
 728        }
 729        shared {
 730                set fd [open [gitdir objects info alternates] w]
 731                fconfigure $fd -translation binary
 732                puts $fd $objdir
 733                close $fd
 734        }
 735        }
 736
 737        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 738                if {![_clone_refs $this]} return
 739                set pwd [pwd]
 740                if {[catch {
 741                                cd $origin_url
 742                                set HEAD [git rev-parse --verify HEAD^0]
 743                        } err]} {
 744                        _clone_failed $this [mc "Not a Git repository: %s" [file tail $origin_url]]
 745                        return 0
 746                }
 747                cd $pwd
 748                _do_clone_checkout $this $HEAD
 749        }
 750}
 751
 752method _copy_files {objdir tocopy} {
 753        $o_cons start \
 754                [mc "Copying objects"] \
 755                [mc "KiB"]
 756        set tot 0
 757        set cmp 0
 758        foreach p $tocopy {
 759                incr tot [file size [file join $objdir $p]]
 760        }
 761        foreach p $tocopy {
 762                if {[catch {
 763                                set f_in [open [file join $objdir $p] r]
 764                                set f_cp [open [file join .git objects $p] w]
 765                                fconfigure $f_in -translation binary -encoding binary
 766                                fconfigure $f_cp -translation binary -encoding binary
 767
 768                                while {![eof $f_in]} {
 769                                        incr cmp [fcopy $f_in $f_cp -size 16384]
 770                                        $o_cons update \
 771                                                [expr {$cmp / 1024}] \
 772                                                [expr {$tot / 1024}]
 773                                        update
 774                                }
 775
 776                                close $f_in
 777                                close $f_cp
 778                        } err]} {
 779                        _clone_failed $this [mc "Unable to copy object: %s" $err]
 780                        return 0
 781                }
 782        }
 783        return 1
 784}
 785
 786method _link_files {objdir tolink} {
 787        set total [llength $tolink]
 788        $o_cons start \
 789                [mc "Linking objects"] \
 790                [mc "objects"]
 791        for {set i 0} {$i < $total} {} {
 792                set p [lindex $tolink $i]
 793                if {[catch {
 794                                file link -hard \
 795                                        [file join .git objects $p] \
 796                                        [file join $objdir $p]
 797                        } err]} {
 798                        _clone_failed $this [mc "Unable to hardlink object: %s" $err]
 799                        return 0
 800                }
 801
 802                incr i
 803                if {$i % 5 == 0} {
 804                        $o_cons update $i $total
 805                        update
 806                }
 807        }
 808        return 1
 809}
 810
 811method _clone_refs {} {
 812        set pwd [pwd]
 813        if {[catch {cd $origin_url} err]} {
 814                error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 815                return 0
 816        }
 817        set fd_in [git_read for-each-ref \
 818                --tcl \
 819                {--format=list %(refname) %(objectname) %(*objectname)}]
 820        cd $pwd
 821
 822        set fd [open [gitdir packed-refs] w]
 823        fconfigure $fd -translation binary
 824        puts $fd "# pack-refs with: peeled"
 825        while {[gets $fd_in line] >= 0} {
 826                set line [eval $line]
 827                set refn [lindex $line 0]
 828                set robj [lindex $line 1]
 829                set tobj [lindex $line 2]
 830
 831                if {[regsub ^refs/heads/ $refn \
 832                        "refs/remotes/$origin_name/" refn]} {
 833                        puts $fd "$robj $refn"
 834                } elseif {[string match refs/tags/* $refn]} {
 835                        puts $fd "$robj $refn"
 836                        if {$tobj ne {}} {
 837                                puts $fd "^$tobj"
 838                        }
 839                }
 840        }
 841        close $fd_in
 842        close $fd
 843        return 1
 844}
 845
 846method _do_clone_tags {ok} {
 847        if {$ok} {
 848                $o_cons exec \
 849                        [list git fetch --tags -k $origin_name] \
 850                        [cb _do_clone_HEAD]
 851        } else {
 852                $o_cons done $ok
 853                _clone_failed $this [mc "Cannot fetch branches and objects.  See console output for details."]
 854        }
 855}
 856
 857method _do_clone_HEAD {ok} {
 858        if {$ok} {
 859                $o_cons exec \
 860                        [list git fetch $origin_name HEAD] \
 861                        [cb _do_clone_full_end]
 862        } else {
 863                $o_cons done $ok
 864                _clone_failed $this [mc "Cannot fetch tags.  See console output for details."]
 865        }
 866}
 867
 868method _do_clone_full_end {ok} {
 869        $o_cons done $ok
 870
 871        if {$ok} {
 872                destroy $w_body
 873
 874                set HEAD {}
 875                if {[file exists [gitdir FETCH_HEAD]]} {
 876                        set fd [open [gitdir FETCH_HEAD] r]
 877                        while {[gets $fd line] >= 0} {
 878                                if {[regexp "^(.{40})\t\t" $line line HEAD]} {
 879                                        break
 880                                }
 881                        }
 882                        close $fd
 883                }
 884
 885                catch {git pack-refs}
 886                _do_clone_checkout $this $HEAD
 887        } else {
 888                _clone_failed $this [mc "Cannot determine HEAD.  See console output for details."]
 889        }
 890}
 891
 892method _clone_failed {{why {}}} {
 893        if {[catch {file delete -force $local_path} err]} {
 894                set why [strcat \
 895                        $why \
 896                        "\n\n" \
 897                        [mc "Unable to cleanup %s" $local_path] \
 898                        "\n\n" \
 899                        $err]
 900        }
 901        if {$why ne {}} {
 902                update
 903                error_popup [strcat [mc "Clone failed."] "\n" $why]
 904        }
 905}
 906
 907method _do_clone_checkout {HEAD} {
 908        if {$HEAD eq {}} {
 909                info_popup [strcat \
 910                        [mc "No default branch obtained."] \
 911                        "\n" \
 912                        [mc "The 'master' branch has not been initialized."] \
 913                        ]
 914                set done 1
 915                return
 916        }
 917        if {[catch {
 918                        git update-ref HEAD $HEAD^0
 919                } err]} {
 920                info_popup [strcat \
 921                        [mc "Cannot resolve %s as a commit." $HEAD^0] \
 922                        "\n  $err" \
 923                        "\n" \
 924                        [mc "The 'master' branch has not been initialized."] \
 925                        ]
 926                set done 1
 927                return
 928        }
 929
 930        set o_cons [status_bar::two_line $w_body]
 931        pack $w_body -fill x -padx 10 -pady 10
 932        $o_cons start \
 933                [mc "Creating working directory"] \
 934                [mc "files"]
 935
 936        set readtree_err {}
 937        set fd [git_read --stderr read-tree \
 938                -m \
 939                -u \
 940                -v \
 941                HEAD \
 942                HEAD \
 943                ]
 944        fconfigure $fd -blocking 0 -translation binary
 945        fileevent $fd readable [cb _readtree_wait $fd]
 946}
 947
 948method _readtree_wait {fd} {
 949        set buf [read $fd]
 950        $o_cons update_meter $buf
 951        append readtree_err $buf
 952
 953        fconfigure $fd -blocking 1
 954        if {![eof $fd]} {
 955                fconfigure $fd -blocking 0
 956                return
 957        }
 958
 959        if {[catch {close $fd}]} {
 960                set err $readtree_err
 961                regsub {^fatal: } $err {} err
 962                error_popup [strcat \
 963                        [mc "Initial file checkout failed."] \
 964                        "\n\n$err"]
 965                return
 966        }
 967
 968        # -- Run the post-checkout hook.
 969        #
 970        set fd_ph [githook_read post-checkout [string repeat 0 40] \
 971                [git rev-parse HEAD] 1]
 972        if {$fd_ph ne {}} {
 973                global pch_error
 974                set pch_error {}
 975                fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
 976                fileevent $fd_ph readable [cb _postcheckout_wait $fd_ph]
 977        } else {
 978                set done 1
 979        }
 980}
 981
 982method _postcheckout_wait {fd_ph} {
 983        global pch_error
 984
 985        append pch_error [read $fd_ph]
 986        fconfigure $fd_ph -blocking 1
 987        if {[eof $fd_ph]} {
 988                if {[catch {close $fd_ph}]} {
 989                        hook_failed_popup post-checkout $pch_error 0
 990                }
 991                unset pch_error
 992                set done 1
 993                return
 994        }
 995        fconfigure $fd_ph -blocking 0
 996}
 997
 998######################################################################
 999##
1000## Open Existing Repository
1001
1002method _do_open {} {
1003        global NS
1004        $w_next conf \
1005                -state disabled \
1006                -command [cb _do_open2] \
1007                -text [mc "Open"]
1008
1009        ${NS}::frame $w_body
1010        ${NS}::label $w_body.h \
1011                -font font_uibold -anchor center \
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        ${NS}::frame $w_body.where
1017        ${NS}::label $w_body.where.l -text [mc "Repository:"]
1018        ${NS}::entry $w_body.where.t \
1019                -textvariable @local_path \
1020                -width 50
1021        ${NS}::button $w_body.where.b \
1022                -text [mc "Browse"] \
1023                -command [cb _open_local_path]
1024
1025        grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
1026        pack $w_body.where -fill x
1027
1028        grid columnconfigure $w_body.where 1 -weight 1
1029
1030        trace add variable @local_path write [cb _write_local_path]
1031        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
1032        update
1033        focus $w_body.where.t
1034}
1035
1036method _open_local_path {} {
1037        if {$local_path ne {}} {
1038                set p $local_path
1039        } else {
1040                set p [_home]
1041        }
1042
1043        set p [tk_chooseDirectory \
1044                -initialdir $p \
1045                -parent $top \
1046                -title [mc "Git Repository"] \
1047                -mustexist true]
1048        if {$p eq {}} return
1049
1050        set p [file normalize $p]
1051        if {![_is_git [file join $p .git]]} {
1052                error_popup [mc "Not a Git repository: %s" [file tail $p]]
1053                return
1054        }
1055        set local_path $p
1056}
1057
1058method _do_open2 {} {
1059        if {![_is_git [file join $local_path .git]]} {
1060                error_popup [mc "Not a Git repository: %s" [file tail $local_path]]
1061                return
1062        }
1063
1064        if {[catch {cd $local_path} err]} {
1065                error_popup [strcat \
1066                        [mc "Failed to open repository %s:" $local_path] \
1067                        "\n\n$err"]
1068                return
1069        }
1070
1071        _append_recentrepos [pwd]
1072        set ::_gitdir .git
1073        set ::_prefix {}
1074        set done 1
1075}
1076
1077}