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