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