git-gui/lib/choose_repository.tcl

   1 # git-gui Git repository chooser
   2 # Copyright (C) 2007 Shawn Pearce
   3
   4 class choose_repository {
   5
   6 field top
   7 field w
   8 field w_body      ; # Widget holding the center content
   9 field w_next      ; # Next button
  10 field w_quit      ; # Quit button
  11 field o_cons      ; # Console object (if active)
  12 field w_types     ; # List of type buttons in clone
  13 field w_recentlist ; # Listbox containing recent repositories
  14 field w_localpath  ; # Entry widget bound to local_path
  15
  16 field done              0 ; # Finished picking the repository?
  17 field local_path       {} ; # Where this repository is locally
  18 field origin_url       {} ; # Where we are cloning from
  19 field origin_name  origin ; # What we shall call 'origin'
  20 field clone_type hardlink ; # Type of clone to construct
  21 field readtree_err        ; # Error output from read-tree (if any)
  22 field sorted_recent       ; # recent repositories (sorted)
  23
  24 constructor pick {} {
  25         global M1T M1B use_ttk NS
  26
  27         if {[set maxrecent [get_config gui.maxrecentrepo]] eq {}} {
  28                 set maxrecent 10
  29         }
  30
  31         make_dialog top w
  32         wm title $top [mc "Git Gui"]
  33
  34         if {$top eq {.}} {
  35                 menu $w.mbar -tearoff 0
  36                 $top configure -menu $w.mbar
  37
  38                 set m_repo $w.mbar.repository
  39                 $w.mbar add cascade \
  40                         -label [mc Repository] \
  41                         -menu $m_repo
  42                 menu $m_repo
  43
  44                 if {[is_MacOSX]} {
  45                         $w.mbar add cascade -label Apple -menu .mbar.apple
  46                         menu $w.mbar.apple
  47                         $w.mbar.apple add command \
  48                                 -label [mc "About %s" [appname]] \
  49                                 -command do_about
  50                         $w.mbar.apple add command \
  51                                 -label [mc "Show SSH Key"] \
  52                                 -command do_ssh_key
  53                 } else {
  54                         $w.mbar add cascade -label [mc Help] -menu $w.mbar.help
  55                         menu $w.mbar.help
  56                         $w.mbar.help add command \
  57                                 -label [mc "About %s" [appname]] \
  58                                 -command do_about
  59                         $w.mbar.help add command \
  60                                 -label [mc "Show SSH Key"] \
  61                                 -command do_ssh_key
  62                 }
  63
  64                 wm protocol $top WM_DELETE_WINDOW exit
  65                 bind $top <$M1B-q> exit
  66                 bind $top <$M1B-Q> exit
  67                 bind $top <Key-Escape> exit
  68         } else {
  69                 wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
  70                 bind $top <Key-Escape> [list destroy $top]
  71                 set m_repo {}
  72         }
  73
  74         pack [git_logo $w.git_logo] -side left -fill y -padx 10 -pady 10
  75
  76         set w_body $w.body
  77         set opts $w_body.options
  78         ${NS}::frame $w_body
  79         text $opts \
  80                 -cursor $::cursor_ptr \
  81                 -relief flat \
  82                 -background [get_bg_color $w_body] \
  83                 -wrap none \
  84                 -spacing1 5 \
  85                 -width 50 \
  86                 -height 3
  87         pack $opts -anchor w -fill x
  88
  89         $opts tag conf link_new -foreground blue -underline 1
  90         $opts tag bind link_new <1> [cb _next new]
  91         $opts insert end [mc "Create New Repository"] link_new
  92         $opts insert end "\n"
  93         if {$m_repo ne {}} {
  94                 $m_repo add command \
  95                         -command [cb _next new] \
  96                         -accelerator $M1T-N \
  97                         -label [mc "New..."]
  98                 bind $top <$M1B-n> [cb _next new]
  99                 bind $top <$M1B-N> [cb _next new]
 100         }
 101
 102         $opts tag conf link_clone -foreground blue -underline 1
 103         $opts tag bind link_clone <1> [cb _next clone]
 104         $opts insert end [mc "Clone Existing Repository"] link_clone
 105         $opts insert end "\n"
 106         if {$m_repo ne {}} {
 107                 if {[tk windowingsystem] eq "win32"} {
 108                         set key L
 109                 } else {
 110                         set key C
 111                 }
 112                 $m_repo add command \
 113                         -command [cb _next clone] \
 114                         -accelerator $M1T-$key \
 115                         -label [mc "Clone..."]
 116                 bind $top <$M1B-[string tolower $key]> [cb _next clone]
 117                 bind $top <$M1B-[string toupper $key]> [cb _next clone]
 118         }
 119
 120         $opts tag conf link_open -foreground blue -underline 1
 121         $opts tag bind link_open <1> [cb _next open]
 122         $opts insert end [mc "Open Existing Repository"] link_open
 123         $opts insert end "\n"
 124         if {$m_repo ne {}} {
 125                 $m_repo add command \
 126                         -command [cb _next open] \
 127                         -accelerator $M1T-O \
 128                         -label [mc "Open..."]
 129                 bind $top <$M1B-o> [cb _next open]
 130                 bind $top <$M1B-O> [cb _next open]
 131         }
 132
 133         $opts conf -state disabled
 134
 135         set sorted_recent [_get_recentrepos]
 136         if {[llength $sorted_recent] > 0} {
 137                 if {$m_repo ne {}} {
 138                         $m_repo add separator
 139                         $m_repo add command \
 140                                 -state disabled \
 141                                 -label [mc "Recent Repositories"]
 142                 }
 143
 144                 ${NS}::label $w_body.space
 145                 ${NS}::label $w_body.recentlabel \
 146                         -anchor w \
 147                         -text [mc "Open Recent Repository:"]
 148                 set w_recentlist $w_body.recentlist
 149                 text $w_recentlist \
 150                         -cursor $::cursor_ptr \
 151                         -relief flat \
 152                         -background [get_bg_color $w_body.recentlabel] \
 153                         -wrap none \
 154                         -width 50 \
 155                         -height $maxrecent
 156                 $w_recentlist tag conf link \
 157                         -foreground blue \
 158                         -underline 1
 159                 set home $::env(HOME)
 160                 if {[is_Cygwin]} {
 161                         set home [exec cygpath --windows --absolute $home]
 162                 }
 163                 set home "[file normalize $home]/"
 164                 set hlen [string length $home]
 165                 foreach p $sorted_recent {
 166                         set path $p
 167                         if {[string equal -length $hlen $home $p]} {
 168                                 set p "~/[string range $p $hlen end]"
 169                         }
 170                         regsub -all "\n" $p "\\n" p
 171                         $w_recentlist insert end $p link
 172                         $w_recentlist insert end "\n"
 173
 174                         if {$m_repo ne {}} {
 175                                 $m_repo add command \
 176                                         -command [cb _open_recent_path $path] \
 177                                         -label "    $p"
 178                         }
 179                 }
 180                 $w_recentlist conf -state disabled
 181                 $w_recentlist tag bind link <1> [cb _open_recent %x,%y]
 182                 pack $w_body.space -anchor w -fill x
 183                 pack $w_body.recentlabel -anchor w -fill x
 184                 pack $w_recentlist -anchor w -fill x
 185         }
 186         pack $w_body -fill x -padx 10 -pady 10
 187
 188         ${NS}::frame $w.buttons
 189         set w_next $w.buttons.next
 190         set w_quit $w.buttons.quit
 191         ${NS}::button $w_quit \
 192                 -text [mc "Quit"] \
 193                 -command exit
 194         pack $w_quit -side right -padx 5
 195         pack $w.buttons -side bottom -fill x -padx 10 -pady 10
 196
 197         if {$m_repo ne {}} {
 198                 $m_repo add separator
 199                 $m_repo add command \
 200                         -label [mc Quit] \
 201                         -command exit \
 202                         -accelerator $M1T-Q
 203         }
 204
 205         bind $top <Return> [cb _invoke_next]
 206         bind $top <Visibility> "
 207                 [cb _center]
 208                 grab $top
 209                 focus $top
 210                 bind $top <Visibility> {}
 211         "
 212         wm deiconify $top
 213         tkwait variable @done
 214
 215         grab release $top
 216         if {$top eq {.}} {
 217                 eval destroy [winfo children $top]
 218         }
 219 }
 220
 221 method _center {} {
 222         set nx [winfo reqwidth $top]
 223         set ny [winfo reqheight $top]
 224         set rx [expr {([winfo screenwidth  $top] - $nx) / 3}]
 225         set ry [expr {([winfo screenheight $top] - $ny) / 3}]
 226         wm geometry $top [format {+%d+%d} $rx $ry]
 227 }
 228
 229 method _invoke_next {} {
 230         if {[winfo exists $w_next]} {
 231                 uplevel #0 [$w_next cget -command]
 232         }
 233 }
 234
 235 proc _get_recentrepos {} {
 236         set recent [list]
 237         foreach p [get_config gui.recentrepo] {
 238                 if {[_is_git [file join $p .git]]} {
 239                         lappend recent $p
 240                 } else {
 241                         _unset_recentrepo $p
 242                 }
 243         }
 244         return [lsort $recent]
 245 }
 246
 247 proc _unset_recentrepo {p} {
 248         regsub -all -- {([()\[\]{}\.^$+*?\\])} $p {\\\1} p
 249         git config --global --unset gui.recentrepo "^$p\$"
 250         load_config 1
 251 }
 252
 253 proc _append_recentrepos {path} {
 254         set path [file normalize $path]
 255         set recent [get_config gui.recentrepo]
 256
 257         if {[lindex $recent end] eq $path} {
 258                 return
 259         }
 260
 261         set i [lsearch $recent $path]
 262         if {$i >= 0} {
 263                 _unset_recentrepo $path
 264                 set recent [lreplace $recent $i $i]
 265         }
 266
 267         lappend recent $path
 268         git config --global --add gui.recentrepo $path
 269         load_config 1
 270
 271         if {[set maxrecent [get_config gui.maxrecentrepo]] eq {}} {
 272                 set maxrecent 10
 273         }
 274
 275         while {[llength $recent] > $maxrecent} {
 276                 _unset_recentrepo [lindex $recent 0]
 277                 set recent [lrange $recent 1 end]
 278         }
 279 }
 280
 281 method _open_recent {xy} {
 282         set id [lindex [split [$w_recentlist index @$xy] .] 0]
 283         set local_path [lindex $sorted_recent [expr {$id - 1}]]
 284         _do_open2 $this
 285 }
 286
 287 method _open_recent_path {p} {
 288         set local_path $p
 289         _do_open2 $this
 290 }
 291
 292 method _next {action} {
 293         global NS
 294         destroy $w_body
 295         if {![winfo exists $w_next]} {
 296                 ${NS}::button $w_next -default active
 297                 set pos -before
 298                 if {[tk windowingsystem] eq "win32"} { set pos -after }
 299                 pack $w_next -side right -padx 5 $pos $w_quit
 300         }
 301         _do_$action $this
 302 }
 303
 304 method _write_local_path {args} {
 305         if {$local_path eq {}} {
 306                 $w_next conf -state disabled
 307         } else {
 308                 $w_next conf -state normal
 309         }
 310 }
 311
 312 method _git_init {} {
 313         if {[catch {file mkdir $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 {cd $local_path} err]} {
 321                 error_popup [strcat \
 322                         [mc "Failed to create repository %s:" $local_path] \
 323                         "\n\n$err"]
 324                 return 0
 325         }
 326
 327         if {[catch {git init} err]} {
 328                 error_popup [strcat \
 329                         [mc "Failed to create repository %s:" $local_path] \
 330                         "\n\n$err"]
 331                 return 0
 332         }
 333
 334         _append_recentrepos [pwd]
 335         set ::_gitdir .git
 336         set ::_prefix {}
 337         return 1
 338 }
 339
 340 proc _is_git {path} {
 341         if {[file exists [file join $path HEAD]]
 342          && [file exists [file join $path objects]]
 343          && [file exists [file join $path config]]} {
 344                 return 1
 345         }
 346         if {[is_Cygwin]} {
 347                 if {[file exists [file join $path HEAD]]
 348                  && [file exists [file join $path objects.lnk]]
 349                  && [file exists [file join $path config.lnk]]} {
 350                         return 1
 351                 }
 352         }
 353         return 0
 354 }
 355
 356 proc _objdir {path} {
 357         set objdir [file join $path .git objects]
 358         if {[file isdirectory $objdir]} {
 359                 return $objdir
 360         }
 361
 362         set objdir [file join $path objects]
 363         if {[file isdirectory $objdir]} {
 364                 return $objdir
 365         }
 366
 367         if {[is_Cygwin]} {
 368                 set objdir [file join $path .git objects.lnk]
 369                 if {[file isfile $objdir]} {
 370                         return [win32_read_lnk $objdir]
 371                 }
 372
 373                 set objdir [file join $path objects.lnk]
 374                 if {[file isfile $objdir]} {
 375                         return [win32_read_lnk $objdir]
 376                 }
 377         }
 378
 379         return {}
 380 }
 381
 382 ######################################################################
 383 ##
 384 ## Create New Repository
 385
 386 method _do_new {} {
 387         global use_ttk NS
 388         $w_next conf \
 389                 -state disabled \
 390                 -command [cb _do_new2] \
 391                 -text [mc "Create"]
 392
 393         ${NS}::frame $w_body
 394         ${NS}::label $w_body.h \
 395                 -font font_uibold -anchor center \
 396                 -text [mc "Create New Repository"]
 397         pack $w_body.h -side top -fill x -pady 10
 398         pack $w_body -fill x -padx 10
 399
 400         ${NS}::frame $w_body.where
 401         ${NS}::label $w_body.where.l -text [mc "Directory:"]
 402         ${NS}::entry $w_body.where.t \
 403                 -textvariable @local_path \
 404                 -width 50
 405         ${NS}::button $w_body.where.b \
 406                 -text [mc "Browse"] \
 407                 -command [cb _new_local_path]
 408         set w_localpath $w_body.where.t
 409
 410         grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
 411         pack $w_body.where -fill x
 412
 413         grid columnconfigure $w_body.where 1 -weight 1
 414
 415         trace add variable @local_path write [cb _write_local_path]
 416         bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
 417         update
 418         focus $w_body.where.t
 419 }
 420
 421 method _new_local_path {} {
 422         if {$local_path ne {}} {
 423                 set p [file dirname $local_path]
 424         } else {
 425                 set p [pwd]
 426         }
 427
 428         set p [tk_chooseDirectory \
 429                 -initialdir $p \
 430                 -parent $top \
 431                 -title [mc "Git Repository"] \
 432                 -mustexist false]
 433         if {$p eq {}} return
 434
 435         set p [file normalize $p]
 436         if {![_new_ok $p]} {
 437                 return
 438         }
 439         set local_path $p
 440         $w_localpath icursor end
 441 }
 442
 443 method _do_new2 {} {
 444         if {![_new_ok $local_path]} {
 445                 return
 446         }
 447         if {![_git_init $this]} {
 448                 return
 449         }
 450         set done 1
 451 }
 452
 453 proc _new_ok {p} {
 454         if {[file isdirectory $p]} {
 455                 if {[_is_git [file join $p .git]]} {
 456                         error_popup [mc "Directory %s already exists." $p]
 457                         return 0
 458                 }
 459         } elseif {[file exists $p]} {
 460                 error_popup [mc "File %s already exists." $p]
 461                 return 0
 462         }
 463         return 1
 464 }
 465
 466 ######################################################################
 467 ##
 468 ## Clone Existing Repository
 469
 470 method _do_clone {} {
 471         global use_ttk NS
 472         $w_next conf \
 473                 -state disabled \
 474                 -command [cb _do_clone2] \
 475                 -text [mc "Clone"]
 476
 477         ${NS}::frame $w_body
 478         ${NS}::label $w_body.h \
 479                 -font font_uibold -anchor center \
 480                 -text [mc "Clone Existing Repository"]
 481         pack $w_body.h -side top -fill x -pady 10
 482         pack $w_body -fill x -padx 10
 483
 484         set args $w_body.args
 485         ${NS}::frame $w_body.args
 486         pack $args -fill both
 487
 488         ${NS}::label $args.origin_l -text [mc "Source Location:"]
 489         ${NS}::entry $args.origin_t \
 490                 -textvariable @origin_url \
 491                 -width 50
 492         ${NS}::button $args.origin_b \
 493                 -text [mc "Browse"] \
 494                 -command [cb _open_origin]
 495         grid $args.origin_l $args.origin_t $args.origin_b -sticky ew
 496
 497         ${NS}::label $args.where_l -text [mc "Target Directory:"]
 498         ${NS}::entry $args.where_t \
 499                 -textvariable @local_path \
 500                 -width 50
 501         ${NS}::button $args.where_b \
 502                 -text [mc "Browse"] \
 503                 -command [cb _new_local_path]
 504         grid $args.where_l $args.where_t $args.where_b -sticky ew
 505         set w_localpath $args.where_t
 506
 507         ${NS}::label $args.type_l -text [mc "Clone Type:"]
 508         ${NS}::frame $args.type_f
 509         set w_types [list]
 510         lappend w_types [${NS}::radiobutton $args.type_f.hardlink \
 511                 -state disabled \
 512                 -text [mc "Standard (Fast, Semi-Redundant, Hardlinks)"] \
 513                 -variable @clone_type \
 514                 -value hardlink]
 515         lappend w_types [${NS}::radiobutton $args.type_f.full \
 516                 -state disabled \
 517                 -text [mc "Full Copy (Slower, Redundant Backup)"] \
 518                 -variable @clone_type \
 519                 -value full]
 520         lappend w_types [${NS}::radiobutton $args.type_f.shared \
 521                 -state disabled \
 522                 -text [mc "Shared (Fastest, Not Recommended, No Backup)"] \
 523                 -variable @clone_type \
 524                 -value shared]
 525         foreach r $w_types {
 526                 pack $r -anchor w
 527         }
 528         grid $args.type_l $args.type_f -sticky new
 529
 530         grid columnconfigure $args 1 -weight 1
 531
 532         trace add variable @local_path write [cb _update_clone]
 533         trace add variable @origin_url write [cb _update_clone]
 534         bind $w_body.h <Destroy> "
 535                 [list trace remove variable @local_path write [cb _update_clone]]
 536                 [list trace remove variable @origin_url write [cb _update_clone]]
 537         "
 538         update
 539         focus $args.origin_t
 540 }
 541
 542 method _open_origin {} {
 543         if {$origin_url ne {} && [file isdirectory $origin_url]} {
 544                 set p $origin_url
 545         } else {
 546                 set p [pwd]
 547         }
 548
 549         set p [tk_chooseDirectory \
 550                 -initialdir $p \
 551                 -parent $top \
 552                 -title [mc "Git Repository"] \
 553                 -mustexist true]
 554         if {$p eq {}} return
 555
 556         set p [file normalize $p]
 557         if {![_is_git [file join $p .git]] && ![_is_git $p]} {
 558                 error_popup [mc "Not a Git repository: %s" [file tail $p]]
 559                 return
 560         }
 561         set origin_url $p
 562 }
 563
 564 method _update_clone {args} {
 565         if {$local_path ne {} && $origin_url ne {}} {
 566                 $w_next conf -state normal
 567         } else {
 568                 $w_next conf -state disabled
 569         }
 570
 571         if {$origin_url ne {} &&
 572                 (  [_is_git [file join $origin_url .git]]
 573                 || [_is_git $origin_url])} {
 574                 set e normal
 575                 if {[[lindex $w_types 0] cget -state] eq {disabled}} {
 576                         set clone_type hardlink
 577                 }
 578         } else {
 579                 set e disabled
 580                 set clone_type full
 581         }
 582
 583         foreach r $w_types {
 584                 $r conf -state $e
 585         }
 586 }
 587
 588 method _do_clone2 {} {
 589         if {[file isdirectory $origin_url]} {
 590                 set origin_url [file normalize $origin_url]
 591         }
 592
 593         if {$clone_type eq {hardlink} && ![file isdirectory $origin_url]} {
 594                 error_popup [mc "Standard only available for local repository."]
 595                 return
 596         }
 597         if {$clone_type eq {shared} && ![file isdirectory $origin_url]} {
 598                 error_popup [mc "Shared only available for local repository."]
 599                 return
 600         }
 601
 602         if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 603                 set objdir [_objdir $origin_url]
 604                 if {$objdir eq {}} {
 605                         error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 606                         return
 607                 }
 608         }
 609
 610         set giturl $origin_url
 611         if {[is_Cygwin] && [file isdirectory $giturl]} {
 612                 set giturl [exec cygpath --unix --absolute $giturl]
 613                 if {$clone_type eq {shared}} {
 614                         set objdir [exec cygpath --unix --absolute $objdir]
 615                 }
 616         }
 617
 618         if {[file exists $local_path]} {
 619                 error_popup [mc "Location %s already exists." $local_path]
 620                 return
 621         }
 622
 623         if {![_git_init $this]} return
 624         set local_path [pwd]
 625
 626         if {[catch {
 627                         git config remote.$origin_name.url $giturl
 628                         git config remote.$origin_name.fetch +refs/heads/*:refs/remotes/$origin_name/*
 629                 } err]} {
 630                 error_popup [strcat [mc "Failed to configure origin"] "\n\n$err"]
 631                 return
 632         }
 633
 634         destroy $w_body $w_next
 635
 636         switch -exact -- $clone_type {
 637         hardlink {
 638                 set o_cons [status_bar::two_line $w_body]
 639                 pack $w_body -fill x -padx 10 -pady 10
 640
 641                 $o_cons start \
 642                         [mc "Counting objects"] \
 643                         [mc "buckets"]
 644                 update
 645
 646                 if {[file exists [file join $objdir info alternates]]} {
 647                         set pwd [pwd]
 648                         if {[catch {
 649                                 file mkdir [gitdir objects info]
 650                                 set f_in [open [file join $objdir info alternates] r]
 651                                 set f_cp [open [gitdir objects info alternates] w]
 652                                 fconfigure $f_in -translation binary -encoding binary
 653                                 fconfigure $f_cp -translation binary -encoding binary
 654                                 cd $objdir
 655                                 while {[gets $f_in line] >= 0} {
 656                                         if {[is_Cygwin]} {
 657                                                 puts $f_cp [exec cygpath --unix --absolute $line]
 658                                         } else {
 659                                                 puts $f_cp [file normalize $line]
 660                                         }
 661                                 }
 662                                 close $f_in
 663                                 close $f_cp
 664                                 cd $pwd
 665                         } err]} {
 666                                 catch {cd $pwd}
 667                                 _clone_failed $this [mc "Unable to copy objects/info/alternates: %s" $err]
 668                                 return
 669                         }
 670                 }
 671
 672                 set tolink  [list]
 673                 set buckets [glob \
 674                         -tails \
 675                         -nocomplain \
 676                         -directory [file join $objdir] ??]
 677                 set bcnt [expr {[llength $buckets] + 2}]
 678                 set bcur 1
 679                 $o_cons update $bcur $bcnt
 680                 update
 681
 682                 file mkdir [file join .git objects pack]
 683                 foreach i [glob -tails -nocomplain \
 684                         -directory [file join $objdir pack] *] {
 685                         lappend tolink [file join pack $i]
 686                 }
 687                 $o_cons update [incr bcur] $bcnt
 688                 update
 689
 690                 foreach i $buckets {
 691                         file mkdir [file join .git objects $i]
 692                         foreach j [glob -tails -nocomplain \
 693                                 -directory [file join $objdir $i] *] {
 694                                 lappend tolink [file join $i $j]
 695                         }
 696                         $o_cons update [incr bcur] $bcnt
 697                         update
 698                 }
 699                 $o_cons stop
 700
 701                 if {$tolink eq {}} {
 702                         info_popup [strcat \
 703                                 [mc "Nothing to clone from %s." $origin_url] \
 704                                 "\n" \
 705                                 [mc "The 'master' branch has not been initialized."] \
 706                                 ]
 707                         destroy $w_body
 708                         set done 1
 709                         return
 710                 }
 711
 712                 set i [lindex $tolink 0]
 713                 if {[catch {
 714                                 file link -hard \
 715                                         [file join .git objects $i] \
 716                                         [file join $objdir $i]
 717                         } err]} {
 718                         info_popup [mc "Hardlinks are unavailable.  Falling back to copying."]
 719                         set i [_copy_files $this $objdir $tolink]
 720                 } else {
 721                         set i [_link_files $this $objdir [lrange $tolink 1 end]]
 722                 }
 723                 if {!$i} return
 724
 725                 destroy $w_body
 726         }
 727         full {
 728                 set o_cons [console::embed \
 729                         $w_body \
 730                         [mc "Cloning from %s" $origin_url]]
 731                 pack $w_body -fill both -expand 1 -padx 10
 732                 $o_cons exec \
 733                         [list git fetch --no-tags -k $origin_name] \
 734                         [cb _do_clone_tags]
 735         }
 736         shared {
 737                 set fd [open [gitdir objects info alternates] w]
 738                 fconfigure $fd -translation binary
 739                 puts $fd $objdir
 740                 close $fd
 741         }
 742         }
 743
 744         if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
 745                 if {![_clone_refs $this]} return
 746                 set pwd [pwd]
 747                 if {[catch {
 748                                 cd $origin_url
 749                                 set HEAD [git rev-parse --verify HEAD^0]
 750                         } err]} {
 751                         _clone_failed $this [mc "Not a Git repository: %s" [file tail $origin_url]]
 752                         return 0
 753                 }
 754                 cd $pwd
 755                 _do_clone_checkout $this $HEAD
 756         }
 757 }
 758
 759 method _copy_files {objdir tocopy} {
 760         $o_cons start \
 761                 [mc "Copying objects"] \
 762                 [mc "KiB"]
 763         set tot 0
 764         set cmp 0
 765         foreach p $tocopy {
 766                 incr tot [file size [file join $objdir $p]]
 767         }
 768         foreach p $tocopy {
 769                 if {[catch {
 770                                 set f_in [open [file join $objdir $p] r]
 771                                 set f_cp [open [file join .git objects $p] w]
 772                                 fconfigure $f_in -translation binary -encoding binary
 773                                 fconfigure $f_cp -translation binary -encoding binary
 774
 775                                 while {![eof $f_in]} {
 776                                         incr cmp [fcopy $f_in $f_cp -size 16384]
 777                                         $o_cons update \
 778                                                 [expr {$cmp / 1024}] \
 779                                                 [expr {$tot / 1024}]
 780                                         update
 781                                 }
 782
 783                                 close $f_in
 784                                 close $f_cp
 785                         } err]} {
 786                         _clone_failed $this [mc "Unable to copy object: %s" $err]
 787                         return 0
 788                 }
 789         }
 790         return 1
 791 }
 792
 793 method _link_files {objdir tolink} {
 794         set total [llength $tolink]
 795         $o_cons start \
 796                 [mc "Linking objects"] \
 797                 [mc "objects"]
 798         for {set i 0} {$i < $total} {} {
 799                 set p [lindex $tolink $i]
 800                 if {[catch {
 801                                 file link -hard \
 802                                         [file join .git objects $p] \
 803                                         [file join $objdir $p]
 804                         } err]} {
 805                         _clone_failed $this [mc "Unable to hardlink object: %s" $err]
 806                         return 0
 807                 }
 808
 809                 incr i
 810                 if {$i % 5 == 0} {
 811                         $o_cons update $i $total
 812                         update
 813                 }
 814         }
 815         return 1
 816 }
 817
 818 method _clone_refs {} {
 819         set pwd [pwd]
 820         if {[catch {cd $origin_url} err]} {
 821                 error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
 822                 return 0
 823         }
 824         set fd_in [git_read for-each-ref \
 825                 --tcl \
 826                 {--format=list %(refname) %(objectname) %(*objectname)}]
 827         cd $pwd
 828
 829         set fd [open [gitdir packed-refs] w]
 830         fconfigure $fd -translation binary
 831         puts $fd "# pack-refs with: peeled"
 832         while {[gets $fd_in line] >= 0} {
 833                 set line [eval $line]
 834                 set refn [lindex $line 0]
 835                 set robj [lindex $line 1]
 836                 set tobj [lindex $line 2]
 837
 838                 if {[regsub ^refs/heads/ $refn \
 839                         "refs/remotes/$origin_name/" refn]} {
 840                         puts $fd "$robj $refn"
 841                 } elseif {[string match refs/tags/* $refn]} {
 842                         puts $fd "$robj $refn"
 843                         if {$tobj ne {}} {
 844                                 puts $fd "^$tobj"
 845                         }
 846                 }
 847         }
 848         close $fd_in
 849         close $fd
 850         return 1
 851 }
 852
 853 method _do_clone_tags {ok} {
 854         if {$ok} {
 855                 $o_cons exec \
 856                         [list git fetch --tags -k $origin_name] \
 857                         [cb _do_clone_HEAD]
 858         } else {
 859                 $o_cons done $ok
 860                 _clone_failed $this [mc "Cannot fetch branches and objects.  See console output for details."]
 861         }
 862 }
 863
 864 method _do_clone_HEAD {ok} {
 865         if {$ok} {
 866                 $o_cons exec \
 867                         [list git fetch $origin_name HEAD] \
 868                         [cb _do_clone_full_end]
 869         } else {
 870                 $o_cons done $ok
 871                 _clone_failed $this [mc "Cannot fetch tags.  See console output for details."]
 872         }
 873 }
 874
 875 method _do_clone_full_end {ok} {
 876         $o_cons done $ok
 877
 878         if {$ok} {
 879                 destroy $w_body
 880
 881                 set HEAD {}
 882                 if {[file exists [gitdir FETCH_HEAD]]} {
 883                         set fd [open [gitdir FETCH_HEAD] r]
 884                         while {[gets $fd line] >= 0} {
 885                                 if {[regexp "^(.{40})\t\t" $line line HEAD]} {
 886                                         break
 887                                 }
 888                         }
 889                         close $fd
 890                 }
 891
 892                 catch {git pack-refs}
 893                 _do_clone_checkout $this $HEAD
 894         } else {
 895                 _clone_failed $this [mc "Cannot determine HEAD.  See console output for details."]
 896         }
 897 }
 898
 899 method _clone_failed {{why {}}} {
 900         if {[catch {file delete -force $local_path} err]} {
 901                 set why [strcat \
 902                         $why \
 903                         "\n\n" \
 904                         [mc "Unable to cleanup %s" $local_path] \
 905                         "\n\n" \
 906                         $err]
 907         }
 908         if {$why ne {}} {
 909                 update
 910                 error_popup [strcat [mc "Clone failed."] "\n" $why]
 911         }
 912 }
 913
 914 method _do_clone_checkout {HEAD} {
 915         if {$HEAD eq {}} {
 916                 info_popup [strcat \
 917                         [mc "No default branch obtained."] \
 918                         "\n" \
 919                         [mc "The 'master' branch has not been initialized."] \
 920                         ]
 921                 set done 1
 922                 return
 923         }
 924         if {[catch {
 925                         git update-ref HEAD $HEAD^0
 926                 } err]} {
 927                 info_popup [strcat \
 928                         [mc "Cannot resolve %s as a commit." $HEAD^0] \
 929                         "\n  $err" \
 930                         "\n" \
 931                         [mc "The 'master' branch has not been initialized."] \
 932                         ]
 933                 set done 1
 934                 return
 935         }
 936
 937         set o_cons [status_bar::two_line $w_body]
 938         pack $w_body -fill x -padx 10 -pady 10
 939         $o_cons start \
 940                 [mc "Creating working directory"] \
 941                 [mc "files"]
 942
 943         set readtree_err {}
 944         set fd [git_read --stderr read-tree \
 945                 -m \
 946                 -u \
 947                 -v \
 948                 HEAD \
 949                 HEAD \
 950                 ]
 951         fconfigure $fd -blocking 0 -translation binary
 952         fileevent $fd readable [cb _readtree_wait $fd]
 953 }
 954
 955 method _readtree_wait {fd} {
 956         set buf [read $fd]
 957         $o_cons update_meter $buf
 958         append readtree_err $buf
 959
 960         fconfigure $fd -blocking 1
 961         if {![eof $fd]} {
 962                 fconfigure $fd -blocking 0
 963                 return
 964         }
 965
 966         if {[catch {close $fd}]} {
 967                 set err $readtree_err
 968                 regsub {^fatal: } $err {} err
 969                 error_popup [strcat \
 970                         [mc "Initial file checkout failed."] \
 971                         "\n\n$err"]
 972                 return
 973         }
 974
 975         # -- Run the post-checkout hook.
 976         #
 977         set fd_ph [githook_read post-checkout [string repeat 0 40] \
 978                 [git rev-parse HEAD] 1]
 979         if {$fd_ph ne {}} {
 980                 global pch_error
 981                 set pch_error {}
 982                 fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
 983                 fileevent $fd_ph readable [cb _postcheckout_wait $fd_ph]
 984         } else {
 985                 set done 1
 986         }
 987 }
 988
 989 method _postcheckout_wait {fd_ph} {
 990         global pch_error
 991
 992         append pch_error [read $fd_ph]
 993         fconfigure $fd_ph -blocking 1
 994         if {[eof $fd_ph]} {
 995                 if {[catch {close $fd_ph}]} {
 996                         hook_failed_popup post-checkout $pch_error 0
 997                 }
 998                 unset pch_error
 999                 set done 1
1000                 return
1001         }
1002         fconfigure $fd_ph -blocking 0
1003 }
1004
1005 ######################################################################
1006 ##
1007 ## Open Existing Repository
1008
1009 method _do_open {} {
1010         global NS
1011         $w_next conf \
1012                 -state disabled \
1013                 -command [cb _do_open2] \
1014                 -text [mc "Open"]
1015
1016         ${NS}::frame $w_body
1017         ${NS}::label $w_body.h \
1018                 -font font_uibold -anchor center \
1019                 -text [mc "Open Existing Repository"]
1020         pack $w_body.h -side top -fill x -pady 10
1021         pack $w_body -fill x -padx 10
1022
1023         ${NS}::frame $w_body.where
1024         ${NS}::label $w_body.where.l -text [mc "Repository:"]
1025         ${NS}::entry $w_body.where.t \
1026                 -textvariable @local_path \
1027                 -width 50
1028         ${NS}::button $w_body.where.b \
1029                 -text [mc "Browse"] \
1030                 -command [cb _open_local_path]
1031
1032         grid $w_body.where.l $w_body.where.t $w_body.where.b -sticky ew
1033         pack $w_body.where -fill x
1034
1035         grid columnconfigure $w_body.where 1 -weight 1
1036
1037         trace add variable @local_path write [cb _write_local_path]
1038         bind $w_body.h <Destroy> [list trace remove variable @local_path write [cb _write_local_path]]
1039         update
1040         focus $w_body.where.t
1041 }
1042
1043 method _open_local_path {} {
1044         if {$local_path ne {}} {
1045                 set p $local_path
1046         } else {
1047                 set p [pwd]
1048         }
1049
1050         set p [tk_chooseDirectory \
1051                 -initialdir $p \
1052                 -parent $top \
1053                 -title [mc "Git Repository"] \
1054                 -mustexist true]
1055         if {$p eq {}} return
1056
1057         set p [file normalize $p]
1058         if {![_is_git [file join $p .git]]} {
1059                 error_popup [mc "Not a Git repository: %s" [file tail $p]]
1060                 return
1061         }
1062         set local_path $p
1063 }
1064
1065 method _do_open2 {} {
1066         if {![_is_git [file join $local_path .git]]} {
1067                 error_popup [mc "Not a Git repository: %s" [file tail $local_path]]
1068                 return
1069         }
1070
1071         if {[catch {cd $local_path} err]} {
1072                 error_popup [strcat \
1073                         [mc "Failed to open repository %s:" $local_path] \
1074                         "\n\n$err"]
1075                 return
1076         }
1077
1078         _append_recentrepos [pwd]
1079         set ::_gitdir .git
1080         set ::_prefix {}
1081         set done 1
1082 }
1083
1084 }