git-gui / lib / choose_repository.tclon commit builtin/show-branch: rewrite functions to work with object_id (d1516bf)
   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 recursive      true ; # Recursive cloning flag
  22field readtree_err        ; # Error output from read-tree (if any)
  23field sorted_recent       ; # recent repositories (sorted)
  24
  25constructor pick {} {
  26        global M1T M1B use_ttk NS
  27
  28        if {[set maxrecent [get_config gui.maxrecentrepo]] eq {}} {
  29                set maxrecent 10
  30        }
  31
  32        make_dialog top w
  33        wm title $top [mc "Git Gui"]
  34
  35        if {$top eq {.}} {
  36                menu $w.mbar -tearoff 0
  37                $top configure -menu $w.mbar
  38
  39                set m_repo $w.mbar.repository
  40                $w.mbar add cascade \
  41                        -label [mc Repository] \
  42                        -menu $m_repo
  43                menu $m_repo
  44
  45                if {[is_MacOSX]} {
  46                        $w.mbar add cascade -label Apple -menu .mbar.apple
  47                        menu $w.mbar.apple
  48                        $w.mbar.apple add command \
  49                                -label [mc "About %s" [appname]] \
  50                                -command do_about
  51                        $w.mbar.apple add command \
  52                                -label [mc "Show SSH Key"] \
  53                                -command do_ssh_key
  54                } else {
  55                        $w.mbar add cascade -label [mc Help] -menu $w.mbar.help
  56                        menu $w.mbar.help
  57                        $w.mbar.help add command \
  58                                -label [mc "About %s" [appname]] \
  59                                -command do_about
  60                        $w.mbar.help add command \
  61                                -label [mc "Show SSH Key"] \
  62                                -command do_ssh_key
  63                }
  64
  65                wm protocol $top WM_DELETE_WINDOW exit
  66                bind $top <$M1B-q> exit
  67                bind $top <$M1B-Q> exit
  68                bind $top <Key-Escape> exit
  69        } else {
  70                wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
  71                bind $top <Key-Escape> [list destroy $top]
  72                set m_repo {}
  73        }
  74
  75        pack [git_logo $w.git_logo] -side left -fill y -padx 10 -pady 10
  76
  77        set w_body $w.body
  78        set opts $w_body.options
  79        ${NS}::frame $w_body
  80        text $opts \
  81                -cursor $::cursor_ptr \
  82                -relief flat \
  83                -background [get_bg_color $w_body] \
  84                -wrap none \
  85                -spacing1 5 \
  86                -width 50 \
  87                -height 3
  88        pack $opts -anchor w -fill x
  89
  90        $opts tag conf link_new -foreground blue -underline 1
  91        $opts tag bind link_new <1> [cb _next new]
  92        $opts insert end [mc "Create New Repository"] link_new
  93        $opts insert end "\n"
  94        if {$m_repo ne {}} {
  95                $m_repo add command \
  96                        -command [cb _next new] \
  97                        -accelerator $M1T-N \
  98                        -label [mc "New..."]
  99                bind $top <$M1B-n> [cb _next new]
 100                bind $top <$M1B-N> [cb _next new]
 101        }
 102
 103        $opts tag conf link_clone -foreground blue -underline 1
 104        $opts tag bind link_clone <1> [cb _next clone]
 105        $opts insert end [mc "Clone Existing Repository"] link_clone
 106        $opts insert end "\n"
 107        if {$m_repo ne {}} {
 108                if {[tk windowingsystem] eq "win32"} {
 109                        set key L
 110                } else {
 111                        set key C
 112                }
 113                $m_repo add command \
 114                        -command [cb _next clone] \
 115                        -accelerator $M1T-$key \
 116                        -label [mc "Clone..."]
 117                bind $top <$M1B-[string tolower $key]> [cb _next clone]
 118                bind $top <$M1B-[string toupper $key]> [cb _next clone]
 119        }
 120
 121        $opts tag conf link_open -foreground blue -underline 1
 122        $opts tag bind link_open <1> [cb _next open]
 123        $opts insert end [mc "Open Existing Repository"] link_open
 124        $opts insert end "\n"
 125        if {$m_repo ne {}} {
 126                $m_repo add command \
 127                        -command [cb _next open] \
 128                        -accelerator $M1T-O \
 129                        -label [mc "Open..."]
 130                bind $top <$M1B-o> [cb _next open]
 131                bind $top <$M1B-O> [cb _next open]
 132        }
 133
 134        $opts conf -state disabled
 135
 136        set sorted_recent [_get_recentrepos]
 137        if {[llength $sorted_recent] > 0} {
 138                if {$m_repo ne {}} {
 139                        $m_repo add separator
 140                        $m_repo add command \
 141                                -state disabled \
 142                                -label [mc "Recent Repositories"]
 143                }
 144
 145                ${NS}::label $w_body.space
 146                ${NS}::label $w_body.recentlabel \
 147                        -anchor w \
 148                        -text [mc "Open Recent Repository:"]
 149                set w_recentlist $w_body.recentlist
 150                text $w_recentlist \
 151                        -cursor $::cursor_ptr \
 152                        -relief flat \
 153                        -background [get_bg_color $w_body.recentlabel] \
 154                        -wrap none \
 155                        -width 50 \
 156                        -height $maxrecent
 157                $w_recentlist tag conf link \
 158                        -foreground blue \
 159                        -underline 1
 160                set home $::env(HOME)
 161                if {[is_Cygwin]} {
 162                        set home [exec cygpath --windows --absolute $home]
 163                }
 164                set home "[file normalize $home]/"
 165                set hlen [string length $home]
 166                foreach p $sorted_recent {
 167                        set path $p
 168                        if {[string equal -length $hlen $home $p]} {
 169                                set p "~/[string range $p $hlen end]"
 170                        }
 171                        regsub -all "\n" $p "\\n" p
 172                        $w_recentlist insert end $p link
 173                        $w_recentlist insert end "\n"
 174
 175                        if {$m_repo ne {}} {
 176                                $m_repo add command \
 177                                        -command [cb _open_recent_path $path] \
 178                                        -label "    $p"
 179                        }
 180                }
 181                $w_recentlist conf -state disabled
 182                $w_recentlist tag bind link <1> [cb _open_recent %x,%y]
 183                pack $w_body.space -anchor w -fill x
 184                pack $w_body.recentlabel -anchor w -fill x
 185                pack $w_recentlist -anchor w -fill x
 186        }
 187        pack $w_body -fill x -padx 10 -pady 10
 188
 189        ${NS}::frame $w.buttons
 190        set w_next $w.buttons.next
 191        set w_quit $w.buttons.quit
 192        ${NS}::button $w_quit \
 193                -text [mc "Quit"] \
 194                -command exit
 195        pack $w_quit -side right -padx 5
 196        pack $w.buttons -side bottom -fill x -padx 10 -pady 10
 197
 198        if {$m_repo ne {}} {
 199                $m_repo add separator
 200                $m_repo add command \
 201                        -label [mc Quit] \
 202                        -command exit \
 203                        -accelerator $M1T-Q
 204        }
 205
 206        bind $top <Return> [cb _invoke_next]
 207        bind $top <Visibility> "
 208                [cb _center]
 209                grab $top
 210                focus $top
 211                bind $top <Visibility> {}
 212        "
 213        wm deiconify $top
 214        tkwait variable @done
 215
 216        grab release $top
 217        if {$top eq {.}} {
 218                eval destroy [winfo children $top]
 219        }
 220}
 221
 222method _center {} {
 223        set nx [winfo reqwidth $top]
 224        set ny [winfo reqheight $top]
 225        set rx [expr {([winfo screenwidth  $top] - $nx) / 3}]
 226        set ry [expr {([winfo screenheight $top] - $ny) / 3}]
 227        wm geometry $top [format {+%d+%d} $rx $ry]
 228}
 229
 230method _invoke_next {} {
 231        if {[winfo exists $w_next]} {
 232                uplevel #0 [$w_next cget -command]
 233        }
 234}
 235
 236proc _get_recentrepos {} {
 237        set recent [list]
 238        foreach p [get_config gui.recentrepo] {
 239                if {[_is_git [file join $p .git]]} {
 240                        lappend recent $p
 241                } else {
 242                        _unset_recentrepo $p
 243                }
 244        }
 245        return [lsort $recent]
 246}
 247
 248proc _unset_recentrepo {p} {
 249        regsub -all -- {([()\[\]{}\.^$+*?\\])} $p {\\\1} p
 250        git config --global --unset gui.recentrepo "^$p\$"
 251        load_config 1
 252}
 253
 254proc _append_recentrepos {path} {
 255        set path [file normalize $path]
 256        set recent [get_config gui.recentrepo]
 257
 258        if {[lindex $recent end] eq $path} {
 259                return
 260        }
 261
 262        set i [lsearch $recent $path]
 263        if {$i >= 0} {
 264                _unset_recentrepo $path
 265                set recent [lreplace $recent $i $i]
 266        }
 267
 268        lappend recent $path
 269        git config --global --add gui.recentrepo $path
 270        load_config 1
 271
 272        if {[set maxrecent [get_config gui.maxrecentrepo]] eq {}} {
 273                set maxrecent 10
 274        }
 275
 276        while {[llength $recent] > $maxrecent} {
 277                _unset_recentrepo [lindex $recent 0]
 278                set recent [lrange $recent 1 end]
 279        }
 280}
 281
 282method _open_recent {xy} {
 283        set id [lindex [split [$w_recentlist index @$xy] .] 0]
 284        set local_path [lindex $sorted_recent [expr {$id - 1}]]
 285        _do_open2 $this
 286}
 287
 288method _open_recent_path {p} {
 289        set local_path $p
 290        _do_open2 $this
 291}
 292
 293method _next {action} {
 294        global NS
 295        destroy $w_body
 296        if {![winfo exists $w_next]} {
 297                ${NS}::button $w_next -default active
 298                set pos -before
 299                if {[tk windowingsystem] eq "win32"} { set pos -after }
 300                pack $w_next -side right -padx 5 $pos $w_quit
 301        }
 302        _do_$action $this
 303}
 304
 305method _write_local_path {args} {
 306        if {$local_path eq {}} {
 307                $w_next conf -state disabled
 308        } else {
 309                $w_next conf -state normal
 310        }
 311}
 312
 313method _git_init {} {
 314        if {[catch {file mkdir $local_path} err]} {
 315                error_popup [strcat \
 316                        [mc "Failed to create repository %s:" $local_path] \
 317                        "\n\n$err"]
 318                return 0
 319        }
 320
 321        if {[catch {cd $local_path} err]} {
 322                error_popup [strcat \
 323                        [mc "Failed to create repository %s:" $local_path] \
 324                        "\n\n$err"]
 325                return 0
 326        }
 327
 328        if {[catch {git init} err]} {
 329                error_popup [strcat \
 330                        [mc "Failed to create repository %s:" $local_path] \
 331                        "\n\n$err"]
 332                return 0
 333        }
 334
 335        _append_recentrepos [pwd]
 336        set ::_gitdir .git
 337        set ::_prefix {}
 338        return 1
 339}
 340
 341proc _is_git {path {outdir_var ""}} {
 342        if {$outdir_var ne ""} {
 343                upvar 1 $outdir_var outdir
 344        }
 345        if {[file isfile $path]} {
 346                set fp [open $path r]
 347                gets $fp line
 348                close $fp
 349                if {[regexp "^gitdir: (.+)$" $line line link_target]} {
 350                        set path [file join [file dirname $path] $link_target]
 351                        set path [file normalize $path]
 352                }
 353        }
 354
 355        if {[file exists [file join $path HEAD]]
 356         && [file exists [file join $path objects]]
 357         && [file exists [file join $path config]]} {
 358                set outdir $path
 359                return 1
 360        }
 361        if {[is_Cygwin]} {
 362                if {[file exists [file join $path HEAD]]
 363                 && [file exists [file join $path objects.lnk]]
 364                 && [file exists [file join $path config.lnk]]} {
 365                        set outdir $path
 366                        return 1
 367                }
 368        }
 369        return 0
 370}
 371
 372proc _objdir {path} {
 373        set objdir [file join $path .git objects]
 374        if {[file isdirectory $objdir]} {
 375                return $objdir
 376        }
 377
 378        set objdir [file join $path objects]
 379        if {[file isdirectory $objdir]} {
 380                return $objdir
 381        }
 382
 383        if {[is_Cygwin]} {
 384                set objdir [file join $path .git objects.lnk]
 385                if {[file isfile $objdir]} {
 386                        return [win32_read_lnk $objdir]
 387                }
 388
 389                set objdir [file join $path objects.lnk]
 390                if {[file isfile $objdir]} {
 391                        return [win32_read_lnk $objdir]
 392                }
 393        }
 394
 395        return {}
 396}
 397
 398######################################################################
 399##
 400## Create New Repository
 401
 402method _do_new {} {
 403        global use_ttk NS
 404        $w_next conf \
 405                -state disabled \
 406                -command [cb _do_new2] \
 407                -text [mc "Create"]
 408
 409        ${NS}::frame $w_body
 410        ${NS}::label $w_body.h \
 411                -font font_uibold -anchor center \
 412                -text [mc "Create New Repository"]
 413        pack $w_body.h -side top -fill x -pady 10
 414        pack $w_body -fill x -padx 10
 415
 416        ${NS}::frame $w_body.where
 417        ${NS}::label $w_body.where.l -text [mc "Directory:"]
 418        ${NS}::entry $w_body.where.t \
 419                -textvariable @local_path \
 420                -width 50
 421        ${NS}::button $w_body.where.b \
 422                -text [mc "Browse"] \
 423                -command [cb _new_local_path]
 424        set w_localpath $w_body.where.t
 425
 426        grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
 427        pack $w_body.where -fill x
 428
 429        grid columnconfigure $w_body.where 1 -weight 1
 430
 431        trace add variable @local_path write [cb _write_local_path]
 432        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
 433        update
 434        focus $w_body.where.t
 435}
 436
 437method _new_local_path {} {
 438        if {$local_path ne {}} {
 439                set p [file dirname $local_path]
 440        } else {
 441                set p [pwd]
 442        }
 443
 444        set p [tk_chooseDirectory \
 445                -initialdir $p \
 446                -parent $top \
 447                -title [mc "Git Repository"] \
 448                -mustexist false]
 449        if {$p eq {}} return
 450
 451        set p [file normalize $p]
 452        if {![_new_ok $p]} {
 453                return
 454        }
 455        set local_path $p
 456        $w_localpath icursor end
 457}
 458
 459method _do_new2 {} {
 460        if {![_new_ok $local_path]} {
 461                return
 462        }
 463        if {![_git_init $this]} {
 464                return
 465        }
 466        set done 1
 467}
 468
 469proc _new_ok {p} {
 470        if {[file isdirectory $p]} {
 471                if {[_is_git [file join $p .git]]} {
 472                        error_popup [mc "Directory %s already exists." $p]
 473                        return 0
 474                }
 475        } elseif {[file exists $p]} {
 476                error_popup [mc "File %s already exists." $p]
 477                return 0
 478        }
 479        return 1
 480}
 481
 482######################################################################
 483##
 484## Clone Existing Repository
 485
 486method _do_clone {} {
 487        global use_ttk NS
 488        $w_next conf \
 489                -state disabled \
 490                -command [cb _do_clone2] \
 491                -text [mc "Clone"]
 492
 493        ${NS}::frame $w_body
 494        ${NS}::label $w_body.h \
 495                -font font_uibold -anchor center \
 496                -text [mc "Clone Existing Repository"]
 497        pack $w_body.h -side top -fill x -pady 10
 498        pack $w_body -fill x -padx 10
 499
 500        set args $w_body.args
 501        ${NS}::frame $w_body.args
 502        pack $args -fill both
 503
 504        ${NS}::label $args.origin_l -text [mc "Source Location:"]
 505        ${NS}::entry $args.origin_t \
 506                -textvariable @origin_url \
 507                -width 50
 508        ${NS}::button $args.origin_b \
 509                -text [mc "Browse"] \
 510                -command [cb _open_origin]
 511        grid $args.origin_l $args.origin_t $args.origin_b -sticky ew
 512
 513        ${NS}::label $args.where_l -text [mc "Target Directory:"]
 514        ${NS}::entry $args.where_t \
 515                -textvariable @local_path \
 516                -width 50
 517        ${NS}::button $args.where_b \
 518                -text [mc "Browse"] \
 519                -command [cb _new_local_path]
 520        grid $args.where_l $args.where_t $args.where_b -sticky ew
 521        set w_localpath $args.where_t
 522
 523        ${NS}::label $args.type_l -text [mc "Clone Type:"]
 524        ${NS}::frame $args.type_f
 525        set w_types [list]
 526        lappend w_types [${NS}::radiobutton $args.type_f.hardlink \
 527                -state disabled \
 528                -text [mc "Standard (Fast, Semi-Redundant, Hardlinks)"] \
 529                -variable @clone_type \
 530                -value hardlink]
 531        lappend w_types [${NS}::radiobutton $args.type_f.full \
 532                -state disabled \
 533                -text [mc "Full Copy (Slower, Redundant Backup)"] \
 534                -variable @clone_type \
 535                -value full]
 536        lappend w_types [${NS}::radiobutton $args.type_f.shared \
 537                -state disabled \
 538                -text [mc "Shared (Fastest, Not Recommended, No Backup)"] \
 539                -variable @clone_type \
 540                -value shared]
 541        foreach r $w_types {
 542                pack $r -anchor w
 543        }
 544        ${NS}::checkbutton $args.type_f.recursive \
 545                -text [mc "Recursively clone submodules too"] \
 546                -variable @recursive \
 547                -onvalue true -offvalue false
 548        pack $args.type_f.recursive -anchor w
 549        grid $args.type_l $args.type_f -sticky new
 550
 551        grid columnconfigure $args 1 -weight 1
 552
 553        trace add variable @local_path write [cb _update_clone]
 554        trace add variable @origin_url write [cb _update_clone]
 555        bind $w_body.h <Destroy> "
 556                [list trace remove variable @local_path write [cb _update_clone]]
 557                [list trace remove variable @origin_url write [cb _update_clone]]
 558        "
 559        update
 560        focus $args.origin_t
 561}
 562
 563method _open_origin {} {
 564        if {$origin_url ne {} && [file isdirectory $origin_url]} {
 565                set p $origin_url
 566        } else {
 567                set p [pwd]
 568        }
 569
 570        set p [tk_chooseDirectory \
 571                -initialdir $p \
 572                -parent $top \
 573                -title [mc "Git Repository"] \
 574                -mustexist true]
 575        if {$p eq {}} return
 576
 577        set p [file normalize $p]
 578        if {![_is_git [file join $p .git]] && ![_is_git $p]} {
 579                error_popup [mc "Not a Git repository: %s" [file tail $p]]
 580                return
 581        }
 582        set origin_url $p
 583}
 584
 585method _update_clone {args} {
 586        if {$local_path ne {} && $origin_url ne {}} {
 587                $w_next conf -state normal
 588        } else {
 589                $w_next conf -state disabled
 590        }
 591
 592        if {$origin_url ne {} &&
 593                (  [_is_git [file join $origin_url .git]]
 594                || [_is_git $origin_url])} {
 595                set e normal
 596                if {[[lindex $w_types 0] cget -state] eq {disabled}} {
 597                        set clone_type hardlink
 598                }
 599        } else {
 600                set e disabled
 601                set clone_type full
 602        }
 603
 604        foreach r $w_types {
 605                $r conf -state $e
 606        }
 607}
 608
 609method _do_clone2 {} {
 610        if {[file isdirectory $origin_url]} {
 611                set origin_url [file normalize $origin_url]
 612        }
 613
 614        if {$clone_type eq {hardlink} && ![file isdirectory $origin_url]} {
 615                error_popup [mc "Standard only available for local repository."]
 616                return
 617        }
 618        if {$clone_type eq {shared} && ![file isdirectory $origin_url]} {
 619                error_popup [mc "Shared only available for local repository."]
 620                return
 621        }
 622
 623        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 624                set objdir [_objdir $origin_url]
 625                if {$objdir eq {}} {
 626                        error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 627                        return
 628                }
 629        }
 630
 631        set giturl $origin_url
 632        if {[is_Cygwin] && [file isdirectory $giturl]} {
 633                set giturl [exec cygpath --unix --absolute $giturl]
 634                if {$clone_type eq {shared}} {
 635                        set objdir [exec cygpath --unix --absolute $objdir]
 636                }
 637        }
 638
 639        if {[file exists $local_path]} {
 640                error_popup [mc "Location %s already exists." $local_path]
 641                return
 642        }
 643
 644        if {![_git_init $this]} return
 645        set local_path [pwd]
 646
 647        if {[catch {
 648                        git config remote.$origin_name.url $giturl
 649                        git config remote.$origin_name.fetch +refs/heads/*:refs/remotes/$origin_name/*
 650                } err]} {
 651                error_popup [strcat [mc "Failed to configure origin"] "\n\n$err"]
 652                return
 653        }
 654
 655        destroy $w_body $w_next
 656
 657        switch -exact -- $clone_type {
 658        hardlink {
 659                set o_cons [status_bar::two_line $w_body]
 660                pack $w_body -fill x -padx 10 -pady 10
 661
 662                $o_cons start \
 663                        [mc "Counting objects"] \
 664                        [mc "buckets"]
 665                update
 666
 667                if {[file exists [file join $objdir info alternates]]} {
 668                        set pwd [pwd]
 669                        if {[catch {
 670                                file mkdir [gitdir objects info]
 671                                set f_in [open [file join $objdir info alternates] r]
 672                                set f_cp [open [gitdir objects info alternates] w]
 673                                fconfigure $f_in -translation binary -encoding binary
 674                                fconfigure $f_cp -translation binary -encoding binary
 675                                cd $objdir
 676                                while {[gets $f_in line] >= 0} {
 677                                        if {[is_Cygwin]} {
 678                                                puts $f_cp [exec cygpath --unix --absolute $line]
 679                                        } else {
 680                                                puts $f_cp [file normalize $line]
 681                                        }
 682                                }
 683                                close $f_in
 684                                close $f_cp
 685                                cd $pwd
 686                        } err]} {
 687                                catch {cd $pwd}
 688                                _clone_failed $this [mc "Unable to copy objects/info/alternates: %s" $err]
 689                                return
 690                        }
 691                }
 692
 693                set tolink  [list]
 694                set buckets [glob \
 695                        -tails \
 696                        -nocomplain \
 697                        -directory [file join $objdir] ??]
 698                set bcnt [expr {[llength $buckets] + 2}]
 699                set bcur 1
 700                $o_cons update $bcur $bcnt
 701                update
 702
 703                file mkdir [file join .git objects pack]
 704                foreach i [glob -tails -nocomplain \
 705                        -directory [file join $objdir pack] *] {
 706                        lappend tolink [file join pack $i]
 707                }
 708                $o_cons update [incr bcur] $bcnt
 709                update
 710
 711                foreach i $buckets {
 712                        file mkdir [file join .git objects $i]
 713                        foreach j [glob -tails -nocomplain \
 714                                -directory [file join $objdir $i] *] {
 715                                lappend tolink [file join $i $j]
 716                        }
 717                        $o_cons update [incr bcur] $bcnt
 718                        update
 719                }
 720                $o_cons stop
 721
 722                if {$tolink eq {}} {
 723                        info_popup [strcat \
 724                                [mc "Nothing to clone from %s." $origin_url] \
 725                                "\n" \
 726                                [mc "The 'master' branch has not been initialized."] \
 727                                ]
 728                        destroy $w_body
 729                        set done 1
 730                        return
 731                }
 732
 733                set i [lindex $tolink 0]
 734                if {[catch {
 735                                file link -hard \
 736                                        [file join .git objects $i] \
 737                                        [file join $objdir $i]
 738                        } err]} {
 739                        info_popup [mc "Hardlinks are unavailable.  Falling back to copying."]
 740                        set i [_copy_files $this $objdir $tolink]
 741                } else {
 742                        set i [_link_files $this $objdir [lrange $tolink 1 end]]
 743                }
 744                if {!$i} return
 745
 746                destroy $w_body
 747        }
 748        full {
 749                set o_cons [console::embed \
 750                        $w_body \
 751                        [mc "Cloning from %s" $origin_url]]
 752                pack $w_body -fill both -expand 1 -padx 10
 753                $o_cons exec \
 754                        [list git fetch --no-tags -k $origin_name] \
 755                        [cb _do_clone_tags]
 756        }
 757        shared {
 758                set fd [open [gitdir objects info alternates] w]
 759                fconfigure $fd -translation binary
 760                puts $fd $objdir
 761                close $fd
 762        }
 763        }
 764
 765        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 766                if {![_clone_refs $this]} return
 767                set pwd [pwd]
 768                if {[catch {
 769                                cd $origin_url
 770                                set HEAD [git rev-parse --verify HEAD^0]
 771                        } err]} {
 772                        _clone_failed $this [mc "Not a Git repository: %s" [file tail $origin_url]]
 773                        return 0
 774                }
 775                cd $pwd
 776                _do_clone_checkout $this $HEAD
 777        }
 778}
 779
 780method _copy_files {objdir tocopy} {
 781        $o_cons start \
 782                [mc "Copying objects"] \
 783                [mc "KiB"]
 784        set tot 0
 785        set cmp 0
 786        foreach p $tocopy {
 787                incr tot [file size [file join $objdir $p]]
 788        }
 789        foreach p $tocopy {
 790                if {[catch {
 791                                set f_in [open [file join $objdir $p] r]
 792                                set f_cp [open [file join .git objects $p] w]
 793                                fconfigure $f_in -translation binary -encoding binary
 794                                fconfigure $f_cp -translation binary -encoding binary
 795
 796                                while {![eof $f_in]} {
 797                                        incr cmp [fcopy $f_in $f_cp -size 16384]
 798                                        $o_cons update \
 799                                                [expr {$cmp / 1024}] \
 800                                                [expr {$tot / 1024}]
 801                                        update
 802                                }
 803
 804                                close $f_in
 805                                close $f_cp
 806                        } err]} {
 807                        _clone_failed $this [mc "Unable to copy object: %s" $err]
 808                        return 0
 809                }
 810        }
 811        return 1
 812}
 813
 814method _link_files {objdir tolink} {
 815        set total [llength $tolink]
 816        $o_cons start \
 817                [mc "Linking objects"] \
 818                [mc "objects"]
 819        for {set i 0} {$i < $total} {} {
 820                set p [lindex $tolink $i]
 821                if {[catch {
 822                                file link -hard \
 823                                        [file join .git objects $p] \
 824                                        [file join $objdir $p]
 825                        } err]} {
 826                        _clone_failed $this [mc "Unable to hardlink object: %s" $err]
 827                        return 0
 828                }
 829
 830                incr i
 831                if {$i % 5 == 0} {
 832                        $o_cons update $i $total
 833                        update
 834                }
 835        }
 836        return 1
 837}
 838
 839method _clone_refs {} {
 840        set pwd [pwd]
 841        if {[catch {cd $origin_url} err]} {
 842                error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 843                return 0
 844        }
 845        set fd_in [git_read for-each-ref \
 846                --tcl \
 847                {--format=list %(refname) %(objectname) %(*objectname)}]
 848        cd $pwd
 849
 850        set fd [open [gitdir packed-refs] w]
 851        fconfigure $fd -translation binary
 852        puts $fd "# pack-refs with: peeled"
 853        while {[gets $fd_in line] >= 0} {
 854                set line [eval $line]
 855                set refn [lindex $line 0]
 856                set robj [lindex $line 1]
 857                set tobj [lindex $line 2]
 858
 859                if {[regsub ^refs/heads/ $refn \
 860                        "refs/remotes/$origin_name/" refn]} {
 861                        puts $fd "$robj $refn"
 862                } elseif {[string match refs/tags/* $refn]} {
 863                        puts $fd "$robj $refn"
 864                        if {$tobj ne {}} {
 865                                puts $fd "^$tobj"
 866                        }
 867                }
 868        }
 869        close $fd_in
 870        close $fd
 871        return 1
 872}
 873
 874method _do_clone_tags {ok} {
 875        if {$ok} {
 876                $o_cons exec \
 877                        [list git fetch --tags -k $origin_name] \
 878                        [cb _do_clone_HEAD]
 879        } else {
 880                $o_cons done $ok
 881                _clone_failed $this [mc "Cannot fetch branches and objects.  See console output for details."]
 882        }
 883}
 884
 885method _do_clone_HEAD {ok} {
 886        if {$ok} {
 887                $o_cons exec \
 888                        [list git fetch $origin_name HEAD] \
 889                        [cb _do_clone_full_end]
 890        } else {
 891                $o_cons done $ok
 892                _clone_failed $this [mc "Cannot fetch tags.  See console output for details."]
 893        }
 894}
 895
 896method _do_clone_full_end {ok} {
 897        $o_cons done $ok
 898
 899        if {$ok} {
 900                destroy $w_body
 901
 902                set HEAD {}
 903                if {[file exists [gitdir FETCH_HEAD]]} {
 904                        set fd [open [gitdir FETCH_HEAD] r]
 905                        while {[gets $fd line] >= 0} {
 906                                if {[regexp "^(.{40})\t\t" $line line HEAD]} {
 907                                        break
 908                                }
 909                        }
 910                        close $fd
 911                }
 912
 913                catch {git pack-refs}
 914                _do_clone_checkout $this $HEAD
 915        } else {
 916                _clone_failed $this [mc "Cannot determine HEAD.  See console output for details."]
 917        }
 918}
 919
 920method _clone_failed {{why {}}} {
 921        if {[catch {file delete -force $local_path} err]} {
 922                set why [strcat \
 923                        $why \
 924                        "\n\n" \
 925                        [mc "Unable to cleanup %s" $local_path] \
 926                        "\n\n" \
 927                        $err]
 928        }
 929        if {$why ne {}} {
 930                update
 931                error_popup [strcat [mc "Clone failed."] "\n" $why]
 932        }
 933}
 934
 935method _do_clone_checkout {HEAD} {
 936        if {$HEAD eq {}} {
 937                info_popup [strcat \
 938                        [mc "No default branch obtained."] \
 939                        "\n" \
 940                        [mc "The 'master' branch has not been initialized."] \
 941                        ]
 942                set done 1
 943                return
 944        }
 945        if {[catch {
 946                        git update-ref HEAD $HEAD^0
 947                } err]} {
 948                info_popup [strcat \
 949                        [mc "Cannot resolve %s as a commit." $HEAD^0] \
 950                        "\n  $err" \
 951                        "\n" \
 952                        [mc "The 'master' branch has not been initialized."] \
 953                        ]
 954                set done 1
 955                return
 956        }
 957
 958        set o_cons [status_bar::two_line $w_body]
 959        pack $w_body -fill x -padx 10 -pady 10
 960        $o_cons start \
 961                [mc "Creating working directory"] \
 962                [mc "files"]
 963
 964        set readtree_err {}
 965        set fd [git_read --stderr read-tree \
 966                -m \
 967                -u \
 968                -v \
 969                HEAD \
 970                HEAD \
 971                ]
 972        fconfigure $fd -blocking 0 -translation binary
 973        fileevent $fd readable [cb _readtree_wait $fd]
 974}
 975
 976method _do_validate_submodule_cloning {ok} {
 977        if {$ok} {
 978                $o_cons done $ok
 979                set done 1
 980        } else {
 981                _clone_failed $this [mc "Cannot clone submodules."]
 982        }
 983}
 984
 985method _do_clone_submodules {} {
 986        if {$recursive eq {true}} {
 987                destroy $w_body
 988                set o_cons [console::embed \
 989                        $w_body \
 990                        [mc "Cloning submodules"]]
 991                pack $w_body -fill both -expand 1 -padx 10
 992                $o_cons exec \
 993                        [list git submodule update --init --recursive] \
 994                        [cb _do_validate_submodule_cloning]
 995        } else {
 996                set done 1
 997        }
 998}
 999
1000method _readtree_wait {fd} {
1001        set buf [read $fd]
1002        $o_cons update_meter $buf
1003        append readtree_err $buf
1004
1005        fconfigure $fd -blocking 1
1006        if {![eof $fd]} {
1007                fconfigure $fd -blocking 0
1008                return
1009        }
1010
1011        if {[catch {close $fd}]} {
1012                set err $readtree_err
1013                regsub {^fatal: } $err {} err
1014                error_popup [strcat \
1015                        [mc "Initial file checkout failed."] \
1016                        "\n\n$err"]
1017                return
1018        }
1019
1020        # -- Run the post-checkout hook.
1021        #
1022        set fd_ph [githook_read post-checkout [string repeat 0 40] \
1023                [git rev-parse HEAD] 1]
1024        if {$fd_ph ne {}} {
1025                global pch_error
1026                set pch_error {}
1027                fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
1028                fileevent $fd_ph readable [cb _postcheckout_wait $fd_ph]
1029        } else {
1030                _do_clone_submodules $this
1031        }
1032}
1033
1034method _postcheckout_wait {fd_ph} {
1035        global pch_error
1036
1037        append pch_error [read $fd_ph]
1038        fconfigure $fd_ph -blocking 1
1039        if {[eof $fd_ph]} {
1040                if {[catch {close $fd_ph}]} {
1041                        hook_failed_popup post-checkout $pch_error 0
1042                }
1043                unset pch_error
1044                _do_clone_submodules $this
1045                return
1046        }
1047        fconfigure $fd_ph -blocking 0
1048}
1049
1050######################################################################
1051##
1052## Open Existing Repository
1053
1054method _do_open {} {
1055        global NS
1056        $w_next conf \
1057                -state disabled \
1058                -command [cb _do_open2] \
1059                -text [mc "Open"]
1060
1061        ${NS}::frame $w_body
1062        ${NS}::label $w_body.h \
1063                -font font_uibold -anchor center \
1064                -text [mc "Open Existing Repository"]
1065        pack $w_body.h -side top -fill x -pady 10
1066        pack $w_body -fill x -padx 10
1067
1068        ${NS}::frame $w_body.where
1069        ${NS}::label $w_body.where.l -text [mc "Repository:"]
1070        ${NS}::entry $w_body.where.t \
1071                -textvariable @local_path \
1072                -width 50
1073        ${NS}::button $w_body.where.b \
1074                -text [mc "Browse"] \
1075                -command [cb _open_local_path]
1076
1077        grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
1078        pack $w_body.where -fill x
1079
1080        grid columnconfigure $w_body.where 1 -weight 1
1081
1082        trace add variable @local_path write [cb _write_local_path]
1083        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
1084        update
1085        focus $w_body.where.t
1086}
1087
1088method _open_local_path {} {
1089        if {$local_path ne {}} {
1090                set p $local_path
1091        } else {
1092                set p [pwd]
1093        }
1094
1095        set p [tk_chooseDirectory \
1096                -initialdir $p \
1097                -parent $top \
1098                -title [mc "Git Repository"] \
1099                -mustexist true]
1100        if {$p eq {}} return
1101
1102        set p [file normalize $p]
1103        if {![_is_git [file join $p .git]]} {
1104                error_popup [mc "Not a Git repository: %s" [file tail $p]]
1105                return
1106        }
1107        set local_path $p
1108}
1109
1110method _do_open2 {} {
1111        if {![_is_git [file join $local_path .git] actualgit]} {
1112                error_popup [mc "Not a Git repository: %s" [file tail $local_path]]
1113                return
1114        }
1115
1116        if {[catch {cd $local_path} err]} {
1117                error_popup [strcat \
1118                        [mc "Failed to open repository %s:" $local_path] \
1119                        "\n\n$err"]
1120                return
1121        }
1122
1123        _append_recentrepos [pwd]
1124        set ::_gitdir $actualgit
1125        set ::_prefix {}
1126        set done 1
1127}
1128
1129}