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mirror of https://github.com/git/git.git synced 2024-11-20 17:25:26 +01:00
git/lib/choose_repository.tcl
Shawn O. Pearce 40f86af01b git-gui: Don't bother showing OS error message about hardlinks
If we failed to create our test hardlink for the first object
we need to link/copy then the only recourse we have is to make
a copy of the objects.  Users don't really need to know the OS
details about why the hardlink failed as its usually because
they are crossing filesystem boundaries.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-09-24 21:48:38 -04:00

837 lines
19 KiB
Tcl

# git-gui Git repository chooser
# Copyright (C) 2007 Shawn Pearce
class choose_repository {
image create photo ::choose_repository::git_logo -data {
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Wq3Ux3X7zC4Xg7B4HN4Bzui0eo2GsN9wN3ye/jLI+IGZzpfz535/b3ZgeWN7goMPiXGLjGyECoaH
Oo+QjpZ1mJlnkQaTYhigZR6cmg6mbZucnqN6F64fqZ2rmYGskbGwo7Kzt7a1lq28u6AfBcjJysvM
yRDN0NHP0dTKniS619pG2dveQd3f4jzh40eu3eh5EOrq5kPtk3fxoQ/0xO9A93jz9+z7hvKBA1hP
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cv3KUkRUC28rxMXW0KjDthvxgphb1GxSvynQilWblu1Nt4BFJZY4mIVgskMXhwQrN+GryQkj+zvx
mFTew5/5Eo6nmV5p0pzrUr4LejTkv5mlxsZMsKlqvf1an3691PJud7JrpwZFoDgBu3Zzi/6NjrlI
y5cD+74IPbrydowPBgfofPXe6QarW6eOuvLsBtC7424JnnX67djhtr++mTb3s+3Fe0avvexl2g3L
laaPd4QECN9+HBioFYF2KMjff7AVtkNyBUpmnoQRNjYhg184SN94GfI2U38LeUieiIpBOGJ9JVpo
mIYhIggUiQKZGB6GvanoGI0l9ejjj0AGKeSQRBZp5JFIJqnkkkxOkAAAOw==
}
field top
field w
field w_body ; # Widget holding the center content
field w_next ; # Next button
field o_cons ; # Console object (if active)
field w_types ; # List of type buttons in clone
field action new ; # What action are we going to perform?
field done 0 ; # Finished picking the repository?
field local_path {} ; # Where this repository is locally
field origin_url {} ; # Where we are cloning from
field origin_name origin ; # What we shall call 'origin'
field clone_type hardlink ; # Type of clone to construct
field readtree_err ; # Error output from read-tree (if any)
constructor pick {} {
global M1T M1B
make_toplevel top w
wm title $top [mc "Git Gui"]
if {$top eq {.}} {
menu $w.mbar -tearoff 0
$top configure -menu $w.mbar
$w.mbar add cascade \
-label [mc Repository] \
-menu $w.mbar.repository
menu $w.mbar.repository
$w.mbar.repository add command \
-label [mc Quit] \
-command exit \
-accelerator $M1T-Q
if {[is_MacOSX]} {
$w.mbar add cascade -label [mc Apple] -menu .mbar.apple
menu $w.mbar.apple
$w.mbar.apple add command \
-label [mc "About %s" [appname]] \
-command do_about
} else {
$w.mbar add cascade -label [mc Help] -menu $w.mbar.help
menu $w.mbar.help
$w.mbar.help add command \
-label [mc "About %s" [appname]] \
-command do_about
}
_center $top 500 350
wm protocol $top WM_DELETE_WINDOW exit
bind $top <$M1B-q> exit
bind $top <$M1B-Q> exit
bind $top <Key-Escape> exit
} else {
wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
bind $top <Key-Escape> [list destroy $top]
}
label $w.git_logo \
-borderwidth 1 \
-relief sunken \
-background white \
-image ::choose_repository::git_logo
pack $w.git_logo -side top -fill x -padx 20 -pady 20
set w_body $w.body
frame $w_body
radiobutton $w_body.new \
-anchor w \
-text [mc "Create New Repository"] \
-variable @action \
-value new
radiobutton $w_body.clone \
-anchor w \
-text [mc "Clone Existing Repository"] \
-variable @action \
-value clone
radiobutton $w_body.open \
-anchor w \
-text [mc "Open Existing Repository"] \
-variable @action \
-value open
pack $w_body.new -anchor w -fill x
pack $w_body.clone -anchor w -fill x
pack $w_body.open -anchor w -fill x
pack $w_body -fill x -padx 10
frame $w.buttons
set w_next $w.buttons.next
button $w_next \
-default active \
-text [mc "Next >"] \
-command [cb _next]
pack $w_next -side right -padx 5
button $w.buttons.quit \
-text [mc "Quit"] \
-command exit
pack $w.buttons.quit -side right -padx 5
pack $w.buttons -side bottom -fill x -padx 10 -pady 10
bind $top <Return> [cb _invoke_next]
bind $top <Visibility> "
grab $top
focus $top
"
wm deiconify $top
tkwait variable @done
if {$top eq {.}} {
eval destroy [winfo children $top]
_center $top 500 600
}
}
proc _home {} {
if {[catch {set h $::env(HOME)}]
|| ![file isdirectory $h]} {
set h .
}
return $h
}
proc _center {top nx ny} {
set rx [expr {([winfo screenwidth $top] - $nx) / 2}]
set ry [expr {([winfo screenheight $top] - $ny) / 2}]
wm geometry $top [format {%dx%d+%d+%d} $nx $ny $rx $ry]
}
method _invoke_next {} {
if {[winfo exists $w_next]} {
uplevel #0 [$w_next cget -command]
}
}
method _next {} {
destroy $w_body
_do_$action $this
}
method _write_local_path {args} {
if {$local_path eq {}} {
$w_next conf -state disabled
} else {
$w_next conf -state normal
}
}
method _git_init {} {
if {[file exists $local_path]} {
error_popup [mc "Location %s already exists." $local_path]
return 0
}
if {[catch {file mkdir $local_path} err]} {
error_popup [strcat \
[mc "Failed to create repository %s:" $local_path] \
"\n\n$err"]
return 0
}
if {[catch {cd $local_path} err]} {
error_popup [strcat \
[mc "Failed to create repository %s:" $local_path] \
"\n\n$err"]
return 0
}
if {[catch {git init} err]} {
error_popup [strcat \
[mc "Failed to create repository %s:" $local_path] \
"\n\n$err"]
return 0
}
set ::_gitdir .git
set ::_prefix {}
return 1
}
proc _is_git {path} {
if {[file exists [file join $path HEAD]]
&& [file exists [file join $path objects]]
&& [file exists [file join $path config]]} {
return 1
}
return 0
}
######################################################################
##
## Create New Repository
method _do_new {} {
$w_next conf \
-state disabled \
-command [cb _do_new2] \
-text [mc "Create"]
frame $w_body
label $w_body.h \
-font font_uibold \
-text [mc "Create New Repository"]
pack $w_body.h -side top -fill x -pady 10
pack $w_body -fill x -padx 10
frame $w_body.where
label $w_body.where.l -text [mc "Directory:"]
entry $w_body.where.t \
-textvariable @local_path \
-font font_diff \
-width 50
button $w_body.where.b \
-text [mc "Browse"] \
-command [cb _new_local_path]
pack $w_body.where.b -side right
pack $w_body.where.l -side left
pack $w_body.where.t -fill x
pack $w_body.where -fill x
trace add variable @local_path write [cb _write_local_path]
update
focus $w_body.where.t
}
method _new_local_path {} {
if {$local_path ne {}} {
set p [file dirname $local_path]
} else {
set p [_home]
}
set p [tk_chooseDirectory \
-initialdir $p \
-parent $top \
-title [mc "Git Repository"] \
-mustexist false]
if {$p eq {}} return
set p [file normalize $p]
if {[file isdirectory $p]} {
foreach i [glob \
-directory $p \
-tails \
-nocomplain \
* .*] {
switch -- $i {
. continue
.. continue
default {
error_popup [mc "Directory %s already exists." $p]
return
}
}
}
if {[catch {file delete $p} err]} {
error_popup [strcat \
[mc "Directory %s already exists." $p] \
"\n\n$err"]
return
}
} elseif {[file exists $p]} {
error_popup [mc "File %s already exists." $p]
return
}
set local_path $p
}
method _do_new2 {} {
if {![_git_init $this]} {
return
}
set done 1
}
######################################################################
##
## Clone Existing Repository
method _do_clone {} {
$w_next conf \
-state disabled \
-command [cb _do_clone2] \
-text [mc "Clone"]
frame $w_body
label $w_body.h \
-font font_uibold \
-text [mc "Clone Existing Repository"]
pack $w_body.h -side top -fill x -pady 10
pack $w_body -fill x -padx 10
set args $w_body.args
frame $w_body.args
pack $args -fill both
label $args.origin_l -text [mc "URL:"]
entry $args.origin_t \
-textvariable @origin_url \
-font font_diff \
-width 50
button $args.origin_b \
-text [mc "Browse"] \
-command [cb _open_origin]
grid $args.origin_l $args.origin_t $args.origin_b -sticky ew
label $args.where_l -text [mc "Directory:"]
entry $args.where_t \
-textvariable @local_path \
-font font_diff \
-width 50
button $args.where_b \
-text [mc "Browse"] \
-command [cb _new_local_path]
grid $args.where_l $args.where_t $args.where_b -sticky ew
label $args.type_l -text [mc "Clone Type:"]
frame $args.type_f
set w_types [list]
lappend w_types [radiobutton $args.type_f.hardlink \
-state disabled \
-anchor w \
-text [mc "Standard (Fast, Semi-Redundant, Hardlinks)"] \
-variable @clone_type \
-value hardlink]
lappend w_types [radiobutton $args.type_f.full \
-state disabled \
-anchor w \
-text [mc "Full Copy (Slower, Redundant Backup)"] \
-variable @clone_type \
-value full]
lappend w_types [radiobutton $args.type_f.shared \
-state disabled \
-anchor w \
-text [mc "Shared (Fastest, Not Recommended, No Backup)"] \
-variable @clone_type \
-value shared]
foreach r $w_types {
pack $r -anchor w
}
grid $args.type_l $args.type_f -sticky new
grid columnconfigure $args 1 -weight 1
trace add variable @local_path write [cb _update_clone]
trace add variable @origin_url write [cb _update_clone]
update
focus $args.origin_t
}
method _open_origin {} {
if {$origin_url ne {} && [file isdirectory $origin_url]} {
set p $origin_url
} else {
set p [_home]
}
set p [tk_chooseDirectory \
-initialdir $p \
-parent $top \
-title [mc "Git Repository"] \
-mustexist true]
if {$p eq {}} return
set p [file normalize $p]
if {![_is_git [file join $p .git]] && ![_is_git $p]} {
error_popup [mc "Not a Git repository: %s" [file tail $p]]
return
}
set origin_url $p
}
method _update_clone {args} {
if {$local_path ne {} && $origin_url ne {}} {
$w_next conf -state normal
} else {
$w_next conf -state disabled
}
if {$origin_url ne {} &&
( [_is_git [file join $origin_url .git]]
|| [_is_git $origin_url])} {
set e normal
if {[[lindex $w_types 0] cget -state] eq {disabled}} {
set clone_type hardlink
}
} else {
set e disabled
set clone_type full
}
foreach r $w_types {
$r conf -state $e
}
}
method _do_clone2 {} {
if {[file isdirectory $origin_url]} {
set origin_url [file normalize $origin_url]
}
if {$clone_type eq {hardlink} && ![file isdirectory $origin_url]} {
error_popup [mc "Standard only available for local repository."]
return
}
if {$clone_type eq {shared} && ![file isdirectory $origin_url]} {
error_popup [mc "Shared only available for local repository."]
return
}
if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
set objdir [file join $origin_url .git objects]
if {![file isdirectory $objdir]} {
set objdir [file join $origin_url objects]
if {![file isdirectory $objdir]} {
error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
return
}
}
}
set giturl $origin_url
if {[is_Cygwin] && [file isdirectory $giturl]} {
set giturl [exec cygpath --unix --absolute $giturl]
if {$clone_type eq {shared}} {
set objdir [exec cygpath --unix --absolute $objdir]
}
}
if {![_git_init $this]} return
set local_path [pwd]
if {[catch {
git config remote.$origin_name.url $giturl
git config remote.$origin_name.fetch +refs/heads/*:refs/remotes/$origin_name/*
} err]} {
error_popup [strcat [mc "Failed to configure origin"] "\n\n$err"]
return
}
destroy $w_body $w_next
switch -exact -- $clone_type {
hardlink {
set tolink [list]
file mkdir [file join .git objects pack]
foreach i [glob -tails -nocomplain \
-directory [file join $objdir pack] *] {
lappend tolink [file join pack $i]
}
foreach i [glob -tails -nocomplain \
-directory [file join $objdir] ??] {
file mkdir [file join .git objects $i]
foreach j [glob -tails -nocomplain \
-directory [file join $objdir $i] *] {
lappend tolink [file join $i $j]
}
}
if {$tolink eq {}} {
info_popup [strcat \
[mc "Nothing to clone from %s." $origin_url] \
"\n" \
[mc "The 'master' branch has not been initialized."] \
]
set done 1
return
}
set o_cons [status_bar::new $w_body]
pack $w_body -fill x -padx 10
set i [lindex $tolink 0]
if {[catch {
file link -hard \
[file join .git objects $i] \
[file join $objdir $i]
} err]} {
info_popup [mc "Hardlinks are unavailable. Falling back to copying."]
set i [_copy_files $this $objdir $tolink]
} else {
set i [_link_files $this $objdir [lrange $tolink 1 end]]
}
if {!$i} return
destroy $w_body
}
full {
set o_cons [console::embed \
$w_body \
[mc "Cloning from %s" $origin_url]]
pack $w_body -fill both -expand 1 -padx 10
$o_cons exec \
[list git fetch --no-tags -k $origin_name] \
[cb _do_clone_tags]
}
shared {
set fd [open [gitdir objects info alternates] w]
fconfigure $fd -translation binary
puts $fd $objdir
close $fd
}
}
if {$clone_type eq {hardlink} || $clone_type eq {shared}} {
if {![_clone_refs $this]} return
set pwd [pwd]
if {[catch {
cd $origin_url
set HEAD [git rev-parse --verify HEAD^0]
} err]} {
_clone_failed $this [mc "Not a Git repository: %s" [file tail $origin_url]]
return 0
}
cd $pwd
_do_clone_checkout $this $HEAD
}
}
method _copy_files {objdir tocopy} {
$o_cons start \
[mc "Copying objects"] \
[mc "KiB"]
set tot 0
set cmp 0
foreach p $tocopy {
incr tot [file size [file join $objdir $p]]
}
foreach p $tocopy {
if {[catch {
set f_in [open [file join $objdir $p] r]
set f_cp [open [file join .git objects $p] w]
fconfigure $f_in -translation binary -encoding binary
fconfigure $f_cp -translation binary -encoding binary
while {![eof $f_in]} {
incr cmp [fcopy $f_in $f_cp -size 16384]
$o_cons update \
[expr {$cmp / 1024}] \
[expr {$tot / 1024}]
update
}
close $f_in
close $f_cp
} err]} {
_clone_failed $this [mc "Unable to copy object: %s" $err]
return 0
}
}
return 1
}
method _link_files {objdir tolink} {
set total [llength $tolink]
$o_cons start \
[mc "Linking objects"] \
[mc "objects"]
for {set i 0} {$i < $total} {} {
set p [lindex $tolink $i]
if {[catch {
file link -hard \
[file join .git objects $p] \
[file join $objdir $p]
} err]} {
_clone_failed $this [mc "Unable to hardlink object: %s" $err]
return 0
}
incr i
if {$i % 5 == 0} {
$o_cons update $i $total
update
}
}
return 1
}
method _clone_refs {} {
set pwd [pwd]
if {[catch {cd $origin_url} err]} {
error_popup [mc "Not a Git repository: %s" [file tail $origin_url]]
return 0
}
set fd_in [git_read for-each-ref \
--tcl \
{--format=list %(refname) %(objectname) %(*objectname)}]
cd $pwd
set fd [open [gitdir packed-refs] w]
fconfigure $fd -translation binary
puts $fd "# pack-refs with: peeled"
while {[gets $fd_in line] >= 0} {
set line [eval $line]
set refn [lindex $line 0]
set robj [lindex $line 1]
set tobj [lindex $line 2]
if {[regsub ^refs/heads/ $refn \
"refs/remotes/$origin_name/" refn]} {
puts $fd "$robj $refn"
} elseif {[string match refs/tags/* $refn]} {
puts $fd "$robj $refn"
if {$tobj ne {}} {
puts $fd "^$tobj"
}
}
}
close $fd_in
close $fd
return 1
}
method _do_clone_tags {ok} {
if {$ok} {
$o_cons exec \
[list git fetch --tags -k $origin_name] \
[cb _do_clone_HEAD]
} else {
$o_cons done $ok
_clone_failed $this [mc "Cannot fetch branches and objects. See console output for details."]
}
}
method _do_clone_HEAD {ok} {
if {$ok} {
$o_cons exec \
[list git fetch $origin_name HEAD] \
[cb _do_clone_full_end]
} else {
$o_cons done $ok
_clone_failed $this [mc "Cannot fetch tags. See console output for details."]
}
}
method _do_clone_full_end {ok} {
$o_cons done $ok
if {$ok} {
destroy $w_body
set HEAD {}
if {[file exists [gitdir FETCH_HEAD]]} {
set fd [open [gitdir FETCH_HEAD] r]
while {[gets $fd line] >= 0} {
if {[regexp "^(.{40})\t\t" $line line HEAD]} {
break
}
}
close $fd
}
catch {git pack-refs}
_do_clone_checkout $this $HEAD
} else {
_clone_failed $this [mc "Cannot determine HEAD. See console output for details."]
}
}
method _clone_failed {{why {}}} {
if {[catch {file delete -force $local_path} err]} {
set why [strcat \
$why \
"\n\n" \
[mc "Unable to cleanup %s" $local_path] \
"\n\n" \
$err]
}
if {$why ne {}} {
update
error_popup [strcat [mc "Clone failed."] "\n" $why]
}
}
method _do_clone_checkout {HEAD} {
if {$HEAD eq {}} {
info_popup [strcat \
[mc "No default branch obtained."] \
"\n" \
[mc "The 'master' branch has not been initialized."] \
]
set done 1
return
}
if {[catch {
git update-ref HEAD $HEAD^0
} err]} {
info_popup [strcat \
[mc "Cannot resolve %s as a commit." $HEAD^0] \
"\n $err" \
"\n" \
[mc "The 'master' branch has not been initialized."] \
]
set done 1
return
}
set o_cons [status_bar::new $w_body]
pack $w_body -fill x -padx 10
$o_cons start \
[mc "Creating working directory"] \
[mc "files"]
set readtree_err {}
set fd [git_read --stderr read-tree \
-m \
-u \
-v \
HEAD \
HEAD \
]
fconfigure $fd -blocking 0 -translation binary
fileevent $fd readable [cb _readtree_wait $fd]
}
method _readtree_wait {fd} {
set buf [read $fd]
$o_cons update_meter $buf
append readtree_err $buf
fconfigure $fd -blocking 1
if {![eof $fd]} {
fconfigure $fd -blocking 0
return
}
if {[catch {close $fd}]} {
set err $readtree_err
regsub {^fatal: } $err {} err
error_popup [strcat \
[mc "Initial file checkout failed."] \
"\n\n$err"]
return
}
set done 1
}
######################################################################
##
## Open Existing Repository
method _do_open {} {
$w_next conf \
-state disabled \
-command [cb _do_open2] \
-text [mc "Open"]
frame $w_body
label $w_body.h \
-font font_uibold \
-text [mc "Open Existing Repository"]
pack $w_body.h -side top -fill x -pady 10
pack $w_body -fill x -padx 10
frame $w_body.where
label $w_body.where.l -text [mc "Repository:"]
entry $w_body.where.t \
-textvariable @local_path \
-font font_diff \
-width 50
button $w_body.where.b \
-text [mc "Browse"] \
-command [cb _open_local_path]
pack $w_body.where.b -side right
pack $w_body.where.l -side left
pack $w_body.where.t -fill x
pack $w_body.where -fill x
trace add variable @local_path write [cb _write_local_path]
update
focus $w_body.where.t
}
method _open_local_path {} {
if {$local_path ne {}} {
set p $local_path
} else {
set p [_home]
}
set p [tk_chooseDirectory \
-initialdir $p \
-parent $top \
-title [mc "Git Repository"] \
-mustexist true]
if {$p eq {}} return
set p [file normalize $p]
if {![_is_git [file join $p .git]]} {
error_popup [mc "Not a Git repository: %s" [file tail $p]]
return
}
set local_path $p
}
method _do_open2 {} {
if {![_is_git [file join $local_path .git]]} {
error_popup [mc "Not a Git repository: %s" [file tail $local_path]]
return
}
if {[catch {cd $local_path} err]} {
error_popup [strcat \
[mc "Failed to open repository %s:" $local_path] \
"\n\n$err"]
return
}
set ::_gitdir .git
set ::_prefix {}
set done 1
}
}