git-gui / lib / choose_repository.tclon commit rebase: deprecate --preserve-merges (427c3bd)
   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        if {[set lenrecent [llength $sorted_recent]] < $maxrecent} {
 146                set lenrecent $maxrecent
 147        }
 148
 149                ${NS}::label $w_body.space
 150                ${NS}::label $w_body.recentlabel \
 151                        -anchor w \
 152                        -text [mc "Open Recent Repository:"]
 153                set w_recentlist $w_body.recentlist
 154                text $w_recentlist \
 155                        -cursor $::cursor_ptr \
 156                        -relief flat \
 157                        -background [get_bg_color $w_body.recentlabel] \
 158                        -wrap none \
 159                        -width 50 \
 160                        -height $lenrecent
 161                $w_recentlist tag conf link \
 162                        -foreground blue \
 163                        -underline 1
 164                set home $::env(HOME)
 165                if {[is_Cygwin]} {
 166                        set home [exec cygpath --windows --absolute $home]
 167                }
 168                set home "[file normalize $home]/"
 169                set hlen [string length $home]
 170                foreach p $sorted_recent {
 171                        set path $p
 172                        if {[string equal -length $hlen $home $p]} {
 173                                set p "~/[string range $p $hlen end]"
 174                        }
 175                        regsub -all "\n" $p "\\n" p
 176                        $w_recentlist insert end $p link
 177                        $w_recentlist insert end "\n"
 178
 179                        if {$m_repo ne {}} {
 180                                $m_repo add command \
 181                                        -command [cb _open_recent_path $path] \
 182                                        -label "    $p"
 183                        }
 184                }
 185                $w_recentlist conf -state disabled
 186                $w_recentlist tag bind link <1> [cb _open_recent %x,%y]
 187                pack $w_body.space -anchor w -fill x
 188                pack $w_body.recentlabel -anchor w -fill x
 189                pack $w_recentlist -anchor w -fill x
 190        }
 191        pack $w_body -fill x -padx 10 -pady 10
 192
 193        ${NS}::frame $w.buttons
 194        set w_next $w.buttons.next
 195        set w_quit $w.buttons.quit
 196        ${NS}::button $w_quit \
 197                -text [mc "Quit"] \
 198                -command exit
 199        pack $w_quit -side right -padx 5
 200        pack $w.buttons -side bottom -fill x -padx 10 -pady 10
 201
 202        if {$m_repo ne {}} {
 203                $m_repo add separator
 204                $m_repo add command \
 205                        -label [mc Quit] \
 206                        -command exit \
 207                        -accelerator $M1T-Q
 208        }
 209
 210        bind $top <Return> [cb _invoke_next]
 211        bind $top <Visibility> "
 212                [cb _center]
 213                grab $top
 214                focus $top
 215                bind $top <Visibility> {}
 216        "
 217        wm deiconify $top
 218        tkwait variable @done
 219
 220        grab release $top
 221        if {$top eq {.}} {
 222                eval destroy [winfo children $top]
 223        }
 224}
 225
 226method _center {} {
 227        set nx [winfo reqwidth $top]
 228        set ny [winfo reqheight $top]
 229        set rx [expr {([winfo screenwidth  $top] - $nx) / 3}]
 230        set ry [expr {([winfo screenheight $top] - $ny) / 3}]
 231        wm geometry $top [format {+%d+%d} $rx $ry]
 232}
 233
 234method _invoke_next {} {
 235        if {[winfo exists $w_next]} {
 236                uplevel #0 [$w_next cget -command]
 237        }
 238}
 239
 240proc _get_recentrepos {} {
 241        set recent [list]
 242        foreach p [lsort -unique [get_config gui.recentrepo]] {
 243                if {[_is_git [file join $p .git]]} {
 244                        lappend recent $p
 245                } else {
 246                        _unset_recentrepo $p
 247                }
 248        }
 249        return $recent
 250}
 251
 252proc _unset_recentrepo {p} {
 253        regsub -all -- {([()\[\]{}\.^$+*?\\])} $p {\\\1} p
 254        catch {git config --global --unset-all gui.recentrepo "^$p\$"}
 255        load_config 1
 256}
 257
 258proc _append_recentrepos {path} {
 259        set path [file normalize $path]
 260        set recent [get_config gui.recentrepo]
 261
 262        if {[lindex $recent end] eq $path} {
 263                return
 264        }
 265
 266        set i [lsearch $recent $path]
 267        if {$i >= 0} {
 268                _unset_recentrepo $path
 269        }
 270
 271        git config --global --add gui.recentrepo $path
 272        load_config 1
 273        set recent [get_config gui.recentrepo]
 274
 275        if {[set maxrecent [get_config gui.maxrecentrepo]] eq {}} {
 276                set maxrecent 10
 277        }
 278
 279        while {[llength $recent] > $maxrecent} {
 280                _unset_recentrepo [lindex $recent 0]
 281                set recent [get_config gui.recentrepo]
 282        }
 283}
 284
 285method _open_recent {xy} {
 286        set id [lindex [split [$w_recentlist index @$xy] .] 0]
 287        set local_path [lindex $sorted_recent [expr {$id - 1}]]
 288        _do_open2 $this
 289}
 290
 291method _open_recent_path {p} {
 292        set local_path $p
 293        _do_open2 $this
 294}
 295
 296method _next {action} {
 297        global NS
 298        destroy $w_body
 299        if {![winfo exists $w_next]} {
 300                ${NS}::button $w_next -default active
 301                set pos -before
 302                if {[tk windowingsystem] eq "win32"} { set pos -after }
 303                pack $w_next -side right -padx 5 $pos $w_quit
 304        }
 305        _do_$action $this
 306}
 307
 308method _write_local_path {args} {
 309        if {$local_path eq {}} {
 310                $w_next conf -state disabled
 311        } else {
 312                $w_next conf -state normal
 313        }
 314}
 315
 316method _git_init {} {
 317        if {[catch {file mkdir $local_path} err]} {
 318                error_popup [strcat \
 319                        [mc "Failed to create repository %s:" $local_path] \
 320                        "\n\n$err"]
 321                return 0
 322        }
 323
 324        if {[catch {cd $local_path} err]} {
 325                error_popup [strcat \
 326                        [mc "Failed to create repository %s:" $local_path] \
 327                        "\n\n$err"]
 328                return 0
 329        }
 330
 331        if {[catch {git init} err]} {
 332                error_popup [strcat \
 333                        [mc "Failed to create repository %s:" $local_path] \
 334                        "\n\n$err"]
 335                return 0
 336        }
 337
 338        _append_recentrepos [pwd]
 339        set ::_gitdir .git
 340        set ::_prefix {}
 341        return 1
 342}
 343
 344proc _is_git {path {outdir_var ""}} {
 345        if {$outdir_var ne ""} {
 346                upvar 1 $outdir_var outdir
 347        }
 348        if {[file isfile $path]} {
 349                set fp [open $path r]
 350                gets $fp line
 351                close $fp
 352                if {[regexp "^gitdir: (.+)$" $line line link_target]} {
 353                        set path [file join [file dirname $path] $link_target]
 354                        set path [file normalize $path]
 355                }
 356        }
 357
 358        if {[file exists [file join $path HEAD]]
 359         && [file exists [file join $path objects]]
 360         && [file exists [file join $path config]]} {
 361                set outdir $path
 362                return 1
 363        }
 364        if {[is_Cygwin]} {
 365                if {[file exists [file join $path HEAD]]
 366                 && [file exists [file join $path objects.lnk]]
 367                 && [file exists [file join $path config.lnk]]} {
 368                        set outdir $path
 369                        return 1
 370                }
 371        }
 372        return 0
 373}
 374
 375proc _objdir {path} {
 376        set objdir [file join $path .git objects]
 377        if {[file isdirectory $objdir]} {
 378                return $objdir
 379        }
 380
 381        set objdir [file join $path objects]
 382        if {[file isdirectory $objdir]} {
 383                return $objdir
 384        }
 385
 386        if {[is_Cygwin]} {
 387                set objdir [file join $path .git objects.lnk]
 388                if {[file isfile $objdir]} {
 389                        return [win32_read_lnk $objdir]
 390                }
 391
 392                set objdir [file join $path objects.lnk]
 393                if {[file isfile $objdir]} {
 394                        return [win32_read_lnk $objdir]
 395                }
 396        }
 397
 398        return {}
 399}
 400
 401######################################################################
 402##
 403## Create New Repository
 404
 405method _do_new {} {
 406        global use_ttk NS
 407        $w_next conf \
 408                -state disabled \
 409                -command [cb _do_new2] \
 410                -text [mc "Create"]
 411
 412        ${NS}::frame $w_body
 413        ${NS}::label $w_body.h \
 414                -font font_uibold -anchor center \
 415                -text [mc "Create New Repository"]
 416        pack $w_body.h -side top -fill x -pady 10
 417        pack $w_body -fill x -padx 10
 418
 419        ${NS}::frame $w_body.where
 420        ${NS}::label $w_body.where.l -text [mc "Directory:"]
 421        ${NS}::entry $w_body.where.t \
 422                -textvariable @local_path \
 423                -width 50
 424        ${NS}::button $w_body.where.b \
 425                -text [mc "Browse"] \
 426                -command [cb _new_local_path]
 427        set w_localpath $w_body.where.t
 428
 429        grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
 430        pack $w_body.where -fill x
 431
 432        grid columnconfigure $w_body.where 1 -weight 1
 433
 434        trace add variable @local_path write [cb _write_local_path]
 435        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
 436        update
 437        focus $w_body.where.t
 438}
 439
 440method _new_local_path {} {
 441        if {$local_path ne {}} {
 442                set p [file dirname $local_path]
 443        } else {
 444                set p [pwd]
 445        }
 446
 447        set p [tk_chooseDirectory \
 448                -initialdir $p \
 449                -parent $top \
 450                -title [mc "Git Repository"] \
 451                -mustexist false]
 452        if {$p eq {}} return
 453
 454        set p [file normalize $p]
 455        if {![_new_ok $p]} {
 456                return
 457        }
 458        set local_path $p
 459        $w_localpath icursor end
 460}
 461
 462method _do_new2 {} {
 463        if {![_new_ok $local_path]} {
 464                return
 465        }
 466        if {![_git_init $this]} {
 467                return
 468        }
 469        set done 1
 470}
 471
 472proc _new_ok {p} {
 473        if {[file isdirectory $p]} {
 474                if {[_is_git [file join $p .git]]} {
 475                        error_popup [mc "Directory %s already exists." $p]
 476                        return 0
 477                }
 478        } elseif {[file exists $p]} {
 479                error_popup [mc "File %s already exists." $p]
 480                return 0
 481        }
 482        return 1
 483}
 484
 485######################################################################
 486##
 487## Clone Existing Repository
 488
 489method _do_clone {} {
 490        global use_ttk NS
 491        $w_next conf \
 492                -state disabled \
 493                -command [cb _do_clone2] \
 494                -text [mc "Clone"]
 495
 496        ${NS}::frame $w_body
 497        ${NS}::label $w_body.h \
 498                -font font_uibold -anchor center \
 499                -text [mc "Clone Existing Repository"]
 500        pack $w_body.h -side top -fill x -pady 10
 501        pack $w_body -fill x -padx 10
 502
 503        set args $w_body.args
 504        ${NS}::frame $w_body.args
 505        pack $args -fill both
 506
 507        ${NS}::label $args.origin_l -text [mc "Source Location:"]
 508        ${NS}::entry $args.origin_t \
 509                -textvariable @origin_url \
 510                -width 50
 511        ${NS}::button $args.origin_b \
 512                -text [mc "Browse"] \
 513                -command [cb _open_origin]
 514        grid $args.origin_l $args.origin_t $args.origin_b -sticky ew
 515
 516        ${NS}::label $args.where_l -text [mc "Target Directory:"]
 517        ${NS}::entry $args.where_t \
 518                -textvariable @local_path \
 519                -width 50
 520        ${NS}::button $args.where_b \
 521                -text [mc "Browse"] \
 522                -command [cb _new_local_path]
 523        grid $args.where_l $args.where_t $args.where_b -sticky ew
 524        set w_localpath $args.where_t
 525
 526        ${NS}::label $args.type_l -text [mc "Clone Type:"]
 527        ${NS}::frame $args.type_f
 528        set w_types [list]
 529        lappend w_types [${NS}::radiobutton $args.type_f.hardlink \
 530                -state disabled \
 531                -text [mc "Standard (Fast, Semi-Redundant, Hardlinks)"] \
 532                -variable @clone_type \
 533                -value hardlink]
 534        lappend w_types [${NS}::radiobutton $args.type_f.full \
 535                -state disabled \
 536                -text [mc "Full Copy (Slower, Redundant Backup)"] \
 537                -variable @clone_type \
 538                -value full]
 539        lappend w_types [${NS}::radiobutton $args.type_f.shared \
 540                -state disabled \
 541                -text [mc "Shared (Fastest, Not Recommended, No Backup)"] \
 542                -variable @clone_type \
 543                -value shared]
 544        foreach r $w_types {
 545                pack $r -anchor w
 546        }
 547        ${NS}::checkbutton $args.type_f.recursive \
 548                -text [mc "Recursively clone submodules too"] \
 549                -variable @recursive \
 550                -onvalue true -offvalue false
 551        pack $args.type_f.recursive -anchor w
 552        grid $args.type_l $args.type_f -sticky new
 553
 554        grid columnconfigure $args 1 -weight 1
 555
 556        trace add variable @local_path write [cb _update_clone]
 557        trace add variable @origin_url write [cb _update_clone]
 558        bind $w_body.h <Destroy> "
 559                [list trace remove variable @local_path write [cb _update_clone]]
 560                [list trace remove variable @origin_url write [cb _update_clone]]
 561        "
 562        update
 563        focus $args.origin_t
 564}
 565
 566method _open_origin {} {
 567        if {$origin_url ne {} && [file isdirectory $origin_url]} {
 568                set p $origin_url
 569        } else {
 570                set p [pwd]
 571        }
 572
 573        set p [tk_chooseDirectory \
 574                -initialdir $p \
 575                -parent $top \
 576                -title [mc "Git Repository"] \
 577                -mustexist true]
 578        if {$p eq {}} return
 579
 580        set p [file normalize $p]
 581        if {![_is_git [file join $p .git]] && ![_is_git $p]} {
 582                error_popup [mc "Not a Git repository: %s" [file tail $p]]
 583                return
 584        }
 585        set origin_url $p
 586}
 587
 588method _update_clone {args} {
 589        if {$local_path ne {} && $origin_url ne {}} {
 590                $w_next conf -state normal
 591        } else {
 592                $w_next conf -state disabled
 593        }
 594
 595        if {$origin_url ne {} &&
 596                (  [_is_git [file join $origin_url .git]]
 597                || [_is_git $origin_url])} {
 598                set e normal
 599                if {[[lindex $w_types 0] cget -state] eq {disabled}} {
 600                        set clone_type hardlink
 601                }
 602        } else {
 603                set e disabled
 604                set clone_type full
 605        }
 606
 607        foreach r $w_types {
 608                $r conf -state $e
 609        }
 610}
 611
 612method _do_clone2 {} {
 613        if {[file isdirectory $origin_url]} {
 614                set origin_url [file normalize $origin_url]
 615        }
 616
 617        if {$clone_type eq {hardlink} && ![file isdirectory $origin_url]} {
 618                error_popup [mc "Standard only available for local repository."]
 619                return
 620        }
 621        if {$clone_type eq {shared} && ![file isdirectory $origin_url]} {
 622                error_popup [mc "Shared only available for local repository."]
 623                return
 624        }
 625
 626        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 627                set objdir [_objdir $origin_url]
 628                if {$objdir eq {}} {
 629                        error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 630                        return
 631                }
 632        }
 633
 634        set giturl $origin_url
 635        if {[is_Cygwin] && [file isdirectory $giturl]} {
 636                set giturl [exec cygpath --unix --absolute $giturl]
 637                if {$clone_type eq {shared}} {
 638                        set objdir [exec cygpath --unix --absolute $objdir]
 639                }
 640        }
 641
 642        if {[file exists $local_path]} {
 643                error_popup [mc "Location %s already exists." $local_path]
 644                return
 645        }
 646
 647        if {![_git_init $this]} return
 648        set local_path [pwd]
 649
 650        if {[catch {
 651                        git config remote.$origin_name.url $giturl
 652                        git config remote.$origin_name.fetch +refs/heads/*:refs/remotes/$origin_name/*
 653                } err]} {
 654                error_popup [strcat [mc "Failed to configure origin"] "\n\n$err"]
 655                return
 656        }
 657
 658        destroy $w_body $w_next
 659
 660        switch -exact -- $clone_type {
 661        hardlink {
 662                set o_cons [status_bar::two_line $w_body]
 663                pack $w_body -fill x -padx 10 -pady 10
 664
 665                $o_cons start \
 666                        [mc "Counting objects"] \
 667                        [mc "buckets"]
 668                update
 669
 670                if {[file exists [file join $objdir info alternates]]} {
 671                        set pwd [pwd]
 672                        if {[catch {
 673                                file mkdir [gitdir objects info]
 674                                set f_in [open [file join $objdir info alternates] r]
 675                                set f_cp [open [gitdir objects info alternates] w]
 676                                fconfigure $f_in -translation binary -encoding binary
 677                                fconfigure $f_cp -translation binary -encoding binary
 678                                cd $objdir
 679                                while {[gets $f_in line] >= 0} {
 680                                        if {[is_Cygwin]} {
 681                                                puts $f_cp [exec cygpath --unix --absolute $line]
 682                                        } else {
 683                                                puts $f_cp [file normalize $line]
 684                                        }
 685                                }
 686                                close $f_in
 687                                close $f_cp
 688                                cd $pwd
 689                        } err]} {
 690                                catch {cd $pwd}
 691                                _clone_failed $this [mc "Unable to copy objects/info/alternates: %s" $err]
 692                                return
 693                        }
 694                }
 695
 696                set tolink  [list]
 697                set buckets [glob \
 698                        -tails \
 699                        -nocomplain \
 700                        -directory [file join $objdir] ??]
 701                set bcnt [expr {[llength $buckets] + 2}]
 702                set bcur 1
 703                $o_cons update $bcur $bcnt
 704                update
 705
 706                file mkdir [file join .git objects pack]
 707                foreach i [glob -tails -nocomplain \
 708                        -directory [file join $objdir pack] *] {
 709                        lappend tolink [file join pack $i]
 710                }
 711                $o_cons update [incr bcur] $bcnt
 712                update
 713
 714                foreach i $buckets {
 715                        file mkdir [file join .git objects $i]
 716                        foreach j [glob -tails -nocomplain \
 717                                -directory [file join $objdir $i] *] {
 718                                lappend tolink [file join $i $j]
 719                        }
 720                        $o_cons update [incr bcur] $bcnt
 721                        update
 722                }
 723                $o_cons stop
 724
 725                if {$tolink eq {}} {
 726                        info_popup [strcat \
 727                                [mc "Nothing to clone from %s." $origin_url] \
 728                                "\n" \
 729                                [mc "The 'master' branch has not been initialized."] \
 730                                ]
 731                        destroy $w_body
 732                        set done 1
 733                        return
 734                }
 735
 736                set i [lindex $tolink 0]
 737                if {[catch {
 738                                file link -hard \
 739                                        [file join .git objects $i] \
 740                                        [file join $objdir $i]
 741                        } err]} {
 742                        info_popup [mc "Hardlinks are unavailable.  Falling back to copying."]
 743                        set i [_copy_files $this $objdir $tolink]
 744                } else {
 745                        set i [_link_files $this $objdir [lrange $tolink 1 end]]
 746                }
 747                if {!$i} return
 748
 749                destroy $w_body
 750        }
 751        full {
 752                set o_cons [console::embed \
 753                        $w_body \
 754                        [mc "Cloning from %s" $origin_url]]
 755                pack $w_body -fill both -expand 1 -padx 10
 756                $o_cons exec \
 757                        [list git fetch --no-tags -k $origin_name] \
 758                        [cb _do_clone_tags]
 759        }
 760        shared {
 761                set fd [open [gitdir objects info alternates] w]
 762                fconfigure $fd -translation binary
 763                puts $fd $objdir
 764                close $fd
 765        }
 766        }
 767
 768        if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 769                if {![_clone_refs $this]} return
 770                set pwd [pwd]
 771                if {[catch {
 772                                cd $origin_url
 773                                set HEAD [git rev-parse --verify HEAD^0]
 774                        } err]} {
 775                        _clone_failed $this [mc "Not a Git repository: %s" [file tail $origin_url]]
 776                        return 0
 777                }
 778                cd $pwd
 779                _do_clone_checkout $this $HEAD
 780        }
 781}
 782
 783method _copy_files {objdir tocopy} {
 784        $o_cons start \
 785                [mc "Copying objects"] \
 786                [mc "KiB"]
 787        set tot 0
 788        set cmp 0
 789        foreach p $tocopy {
 790                incr tot [file size [file join $objdir $p]]
 791        }
 792        foreach p $tocopy {
 793                if {[catch {
 794                                set f_in [open [file join $objdir $p] r]
 795                                set f_cp [open [file join .git objects $p] w]
 796                                fconfigure $f_in -translation binary -encoding binary
 797                                fconfigure $f_cp -translation binary -encoding binary
 798
 799                                while {![eof $f_in]} {
 800                                        incr cmp [fcopy $f_in $f_cp -size 16384]
 801                                        $o_cons update \
 802                                                [expr {$cmp / 1024}] \
 803                                                [expr {$tot / 1024}]
 804                                        update
 805                                }
 806
 807                                close $f_in
 808                                close $f_cp
 809                        } err]} {
 810                        _clone_failed $this [mc "Unable to copy object: %s" $err]
 811                        return 0
 812                }
 813        }
 814        return 1
 815}
 816
 817method _link_files {objdir tolink} {
 818        set total [llength $tolink]
 819        $o_cons start \
 820                [mc "Linking objects"] \
 821                [mc "objects"]
 822        for {set i 0} {$i < $total} {} {
 823                set p [lindex $tolink $i]
 824                if {[catch {
 825                                file link -hard \
 826                                        [file join .git objects $p] \
 827                                        [file join $objdir $p]
 828                        } err]} {
 829                        _clone_failed $this [mc "Unable to hardlink object: %s" $err]
 830                        return 0
 831                }
 832
 833                incr i
 834                if {$i % 5 == 0} {
 835                        $o_cons update $i $total
 836                        update
 837                }
 838        }
 839        return 1
 840}
 841
 842method _clone_refs {} {
 843        set pwd [pwd]
 844        if {[catch {cd $origin_url} err]} {
 845                error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 846                return 0
 847        }
 848        set fd_in [git_read for-each-ref \
 849                --tcl \
 850                {--format=list %(refname) %(objectname) %(*objectname)}]
 851        cd $pwd
 852
 853        set fd [open [gitdir packed-refs] w]
 854        fconfigure $fd -translation binary
 855        puts $fd "# pack-refs with: peeled"
 856        while {[gets $fd_in line] >= 0} {
 857                set line [eval $line]
 858                set refn [lindex $line 0]
 859                set robj [lindex $line 1]
 860                set tobj [lindex $line 2]
 861
 862                if {[regsub ^refs/heads/ $refn \
 863                        "refs/remotes/$origin_name/" refn]} {
 864                        puts $fd "$robj $refn"
 865                } elseif {[string match refs/tags/* $refn]} {
 866                        puts $fd "$robj $refn"
 867                        if {$tobj ne {}} {
 868                                puts $fd "^$tobj"
 869                        }
 870                }
 871        }
 872        close $fd_in
 873        close $fd
 874        return 1
 875}
 876
 877method _do_clone_tags {ok} {
 878        if {$ok} {
 879                $o_cons exec \
 880                        [list git fetch --tags -k $origin_name] \
 881                        [cb _do_clone_HEAD]
 882        } else {
 883                $o_cons done $ok
 884                _clone_failed $this [mc "Cannot fetch branches and objects.  See console output for details."]
 885        }
 886}
 887
 888method _do_clone_HEAD {ok} {
 889        if {$ok} {
 890                $o_cons exec \
 891                        [list git fetch $origin_name HEAD] \
 892                        [cb _do_clone_full_end]
 893        } else {
 894                $o_cons done $ok
 895                _clone_failed $this [mc "Cannot fetch tags.  See console output for details."]
 896        }
 897}
 898
 899method _do_clone_full_end {ok} {
 900        $o_cons done $ok
 901
 902        if {$ok} {
 903                destroy $w_body
 904
 905                set HEAD {}
 906                if {[file exists [gitdir FETCH_HEAD]]} {
 907                        set fd [open [gitdir FETCH_HEAD] r]
 908                        while {[gets $fd line] >= 0} {
 909                                if {[regexp "^(.{40})\t\t" $line line HEAD]} {
 910                                        break
 911                                }
 912                        }
 913                        close $fd
 914                }
 915
 916                catch {git pack-refs}
 917                _do_clone_checkout $this $HEAD
 918        } else {
 919                _clone_failed $this [mc "Cannot determine HEAD.  See console output for details."]
 920        }
 921}
 922
 923method _clone_failed {{why {}}} {
 924        if {[catch {file delete -force $local_path} err]} {
 925                set why [strcat \
 926                        $why \
 927                        "\n\n" \
 928                        [mc "Unable to cleanup %s" $local_path] \
 929                        "\n\n" \
 930                        $err]
 931        }
 932        if {$why ne {}} {
 933                update
 934                error_popup [strcat [mc "Clone failed."] "\n" $why]
 935        }
 936}
 937
 938method _do_clone_checkout {HEAD} {
 939        if {$HEAD eq {}} {
 940                info_popup [strcat \
 941                        [mc "No default branch obtained."] \
 942                        "\n" \
 943                        [mc "The 'master' branch has not been initialized."] \
 944                        ]
 945                set done 1
 946                return
 947        }
 948        if {[catch {
 949                        git update-ref HEAD $HEAD^0
 950                } err]} {
 951                info_popup [strcat \
 952                        [mc "Cannot resolve %s as a commit." $HEAD^0] \
 953                        "\n  $err" \
 954                        "\n" \
 955                        [mc "The 'master' branch has not been initialized."] \
 956                        ]
 957                set done 1
 958                return
 959        }
 960
 961        set o_cons [status_bar::two_line $w_body]
 962        pack $w_body -fill x -padx 10 -pady 10
 963        $o_cons start \
 964                [mc "Creating working directory"] \
 965                [mc "files"]
 966
 967        set readtree_err {}
 968        set fd [git_read --stderr read-tree \
 969                -m \
 970                -u \
 971                -v \
 972                HEAD \
 973                HEAD \
 974                ]
 975        fconfigure $fd -blocking 0 -translation binary
 976        fileevent $fd readable [cb _readtree_wait $fd]
 977}
 978
 979method _do_validate_submodule_cloning {ok} {
 980        if {$ok} {
 981                $o_cons done $ok
 982                set done 1
 983        } else {
 984                _clone_failed $this [mc "Cannot clone submodules."]
 985        }
 986}
 987
 988method _do_clone_submodules {} {
 989        if {$recursive eq {true}} {
 990                destroy $w_body
 991                set o_cons [console::embed \
 992                        $w_body \
 993                        [mc "Cloning submodules"]]
 994                pack $w_body -fill both -expand 1 -padx 10
 995                $o_cons exec \
 996                        [list git submodule update --init --recursive] \
 997                        [cb _do_validate_submodule_cloning]
 998        } else {
 999                set done 1
1000        }
1001}
1002
1003method _readtree_wait {fd} {
1004        set buf [read $fd]
1005        $o_cons update_meter $buf
1006        append readtree_err $buf
1007
1008        fconfigure $fd -blocking 1
1009        if {![eof $fd]} {
1010                fconfigure $fd -blocking 0
1011                return
1012        }
1013
1014        if {[catch {close $fd}]} {
1015                set err $readtree_err
1016                regsub {^fatal: } $err {} err
1017                error_popup [strcat \
1018                        [mc "Initial file checkout failed."] \
1019                        "\n\n$err"]
1020                return
1021        }
1022
1023        # -- Run the post-checkout hook.
1024        #
1025        set fd_ph [githook_read post-checkout [string repeat 0 40] \
1026                [git rev-parse HEAD] 1]
1027        if {$fd_ph ne {}} {
1028                global pch_error
1029                set pch_error {}
1030                fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
1031                fileevent $fd_ph readable [cb _postcheckout_wait $fd_ph]
1032        } else {
1033                _do_clone_submodules $this
1034        }
1035}
1036
1037method _postcheckout_wait {fd_ph} {
1038        global pch_error
1039
1040        append pch_error [read $fd_ph]
1041        fconfigure $fd_ph -blocking 1
1042        if {[eof $fd_ph]} {
1043                if {[catch {close $fd_ph}]} {
1044                        hook_failed_popup post-checkout $pch_error 0
1045                }
1046                unset pch_error
1047                _do_clone_submodules $this
1048                return
1049        }
1050        fconfigure $fd_ph -blocking 0
1051}
1052
1053######################################################################
1054##
1055## Open Existing Repository
1056
1057method _do_open {} {
1058        global NS
1059        $w_next conf \
1060                -state disabled \
1061                -command [cb _do_open2] \
1062                -text [mc "Open"]
1063
1064        ${NS}::frame $w_body
1065        ${NS}::label $w_body.h \
1066                -font font_uibold -anchor center \
1067                -text [mc "Open Existing Repository"]
1068        pack $w_body.h -side top -fill x -pady 10
1069        pack $w_body -fill x -padx 10
1070
1071        ${NS}::frame $w_body.where
1072        ${NS}::label $w_body.where.l -text [mc "Repository:"]
1073        ${NS}::entry $w_body.where.t \
1074                -textvariable @local_path \
1075                -width 50
1076        ${NS}::button $w_body.where.b \
1077                -text [mc "Browse"] \
1078                -command [cb _open_local_path]
1079
1080        grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
1081        pack $w_body.where -fill x
1082
1083        grid columnconfigure $w_body.where 1 -weight 1
1084
1085        trace add variable @local_path write [cb _write_local_path]
1086        bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
1087        update
1088        focus $w_body.where.t
1089}
1090
1091method _open_local_path {} {
1092        if {$local_path ne {}} {
1093                set p $local_path
1094        } else {
1095                set p [pwd]
1096        }
1097
1098        set p [tk_chooseDirectory \
1099                -initialdir $p \
1100                -parent $top \
1101                -title [mc "Git Repository"] \
1102                -mustexist true]
1103        if {$p eq {}} return
1104
1105        set p [file normalize $p]
1106        if {![_is_git [file join $p .git]]} {
1107                error_popup [mc "Not a Git repository: %s" [file tail $p]]
1108                return
1109        }
1110        set local_path $p
1111}
1112
1113method _do_open2 {} {
1114        if {![_is_git [file join $local_path .git] actualgit]} {
1115                error_popup [mc "Not a Git repository: %s" [file tail $local_path]]
1116                return
1117        }
1118
1119        if {[catch {cd $local_path} err]} {
1120                error_popup [strcat \
1121                        [mc "Failed to open repository %s:" $local_path] \
1122                        "\n\n$err"]
1123                return
1124        }
1125
1126        _append_recentrepos [pwd]
1127        set ::_gitdir $actualgit
1128        set ::_prefix {}
1129        set done 1
1130}
1131
1132}