/
git-gui.sh
executable file
·6087 lines (5373 loc) · 147 KB
/
git-gui.sh
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#!/bin/sh
# Tcl ignores the next line -*- tcl -*- \
exec wish "$0" -- "$@"
set appvers {@@GITGUI_VERSION@@}
set copyright {
Copyright © 2006, 2007 Shawn Pearce, et. al.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA}
set gitgui_credits {
Paul Mackerras
}
######################################################################
##
## read only globals
set _appname [lindex [file split $argv0] end]
set _gitdir {}
set _gitexec {}
set _reponame {}
set _iscygwin {}
proc appname {} {
global _appname
return $_appname
}
proc gitdir {args} {
global _gitdir
if {$args eq {}} {
return $_gitdir
}
return [eval [concat [list file join $_gitdir] $args]]
}
proc gitexec {args} {
global _gitexec
if {$_gitexec eq {}} {
if {[catch {set _gitexec [git --exec-path]} err]} {
error "Git not installed?\n\n$err"
}
}
if {$args eq {}} {
return $_gitexec
}
return [eval [concat [list file join $_gitexec] $args]]
}
proc reponame {} {
global _reponame
return $_reponame
}
proc is_MacOSX {} {
global tcl_platform tk_library
if {[tk windowingsystem] eq {aqua}} {
return 1
}
return 0
}
proc is_Windows {} {
global tcl_platform
if {$tcl_platform(platform) eq {windows}} {
return 1
}
return 0
}
proc is_Cygwin {} {
global tcl_platform _iscygwin
if {$_iscygwin eq {}} {
if {$tcl_platform(platform) eq {windows}} {
if {[catch {set p [exec cygpath --windir]} err]} {
set _iscygwin 0
} else {
set _iscygwin 1
}
} else {
set _iscygwin 0
}
}
return $_iscygwin
}
proc is_enabled {option} {
global enabled_options
if {[catch {set on $enabled_options($option)}]} {return 0}
return $on
}
proc enable_option {option} {
global enabled_options
set enabled_options($option) 1
}
proc disable_option {option} {
global enabled_options
set enabled_options($option) 0
}
######################################################################
##
## config
proc is_many_config {name} {
switch -glob -- $name {
remote.*.fetch -
remote.*.push
{return 1}
*
{return 0}
}
}
proc is_config_true {name} {
global repo_config
if {[catch {set v $repo_config($name)}]} {
return 0
} elseif {$v eq {true} || $v eq {1} || $v eq {yes}} {
return 1
} else {
return 0
}
}
proc load_config {include_global} {
global repo_config global_config default_config
array unset global_config
if {$include_global} {
catch {
set fd_rc [open "| git config --global --list" r]
while {[gets $fd_rc line] >= 0} {
if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
if {[is_many_config $name]} {
lappend global_config($name) $value
} else {
set global_config($name) $value
}
}
}
close $fd_rc
}
}
array unset repo_config
catch {
set fd_rc [open "| git config --list" r]
while {[gets $fd_rc line] >= 0} {
if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
if {[is_many_config $name]} {
lappend repo_config($name) $value
} else {
set repo_config($name) $value
}
}
}
close $fd_rc
}
foreach name [array names default_config] {
if {[catch {set v $global_config($name)}]} {
set global_config($name) $default_config($name)
}
if {[catch {set v $repo_config($name)}]} {
set repo_config($name) $default_config($name)
}
}
}
proc save_config {} {
global default_config font_descs
global repo_config global_config
global repo_config_new global_config_new
foreach option $font_descs {
set name [lindex $option 0]
set font [lindex $option 1]
font configure $font \
-family $global_config_new(gui.$font^^family) \
-size $global_config_new(gui.$font^^size)
font configure ${font}bold \
-family $global_config_new(gui.$font^^family) \
-size $global_config_new(gui.$font^^size)
set global_config_new(gui.$name) [font configure $font]
unset global_config_new(gui.$font^^family)
unset global_config_new(gui.$font^^size)
}
foreach name [array names default_config] {
set value $global_config_new($name)
if {$value ne $global_config($name)} {
if {$value eq $default_config($name)} {
catch {git config --global --unset $name}
} else {
regsub -all "\[{}\]" $value {"} value
git config --global $name $value
}
set global_config($name) $value
if {$value eq $repo_config($name)} {
catch {git config --unset $name}
set repo_config($name) $value
}
}
}
foreach name [array names default_config] {
set value $repo_config_new($name)
if {$value ne $repo_config($name)} {
if {$value eq $global_config($name)} {
catch {git config --unset $name}
} else {
regsub -all "\[{}\]" $value {"} value
git config $name $value
}
set repo_config($name) $value
}
}
}
######################################################################
##
## handy utils
proc git {args} {
return [eval exec git $args]
}
proc error_popup {msg} {
set title [appname]
if {[reponame] ne {}} {
append title " ([reponame])"
}
set cmd [list tk_messageBox \
-icon error \
-type ok \
-title "$title: error" \
-message $msg]
if {[winfo ismapped .]} {
lappend cmd -parent .
}
eval $cmd
}
proc warn_popup {msg} {
set title [appname]
if {[reponame] ne {}} {
append title " ([reponame])"
}
set cmd [list tk_messageBox \
-icon warning \
-type ok \
-title "$title: warning" \
-message $msg]
if {[winfo ismapped .]} {
lappend cmd -parent .
}
eval $cmd
}
proc info_popup {msg {parent .}} {
set title [appname]
if {[reponame] ne {}} {
append title " ([reponame])"
}
tk_messageBox \
-parent $parent \
-icon info \
-type ok \
-title $title \
-message $msg
}
proc ask_popup {msg} {
set title [appname]
if {[reponame] ne {}} {
append title " ([reponame])"
}
return [tk_messageBox \
-parent . \
-icon question \
-type yesno \
-title $title \
-message $msg]
}
######################################################################
##
## version check
set req_maj 1
set req_min 5
if {[catch {set v [git --version]} err]} {
catch {wm withdraw .}
error_popup "Cannot determine Git version:
$err
[appname] requires Git $req_maj.$req_min or later."
exit 1
}
if {[regexp {^git version (\d+)\.(\d+)} $v _junk act_maj act_min]} {
if {$act_maj < $req_maj
|| ($act_maj == $req_maj && $act_min < $req_min)} {
catch {wm withdraw .}
error_popup "[appname] requires Git $req_maj.$req_min or later.
You are using $v."
exit 1
}
} else {
catch {wm withdraw .}
error_popup "Cannot parse Git version string:\n\n$v"
exit 1
}
unset -nocomplain v _junk act_maj act_min req_maj req_min
######################################################################
##
## repository setup
if { [catch {set _gitdir $env(GIT_DIR)}]
&& [catch {set _gitdir [git rev-parse --git-dir]} err]} {
catch {wm withdraw .}
error_popup "Cannot find the git directory:\n\n$err"
exit 1
}
if {![file isdirectory $_gitdir] && [is_Cygwin]} {
catch {set _gitdir [exec cygpath --unix $_gitdir]}
}
if {![file isdirectory $_gitdir]} {
catch {wm withdraw .}
error_popup "Git directory not found:\n\n$_gitdir"
exit 1
}
if {[lindex [file split $_gitdir] end] ne {.git}} {
catch {wm withdraw .}
error_popup "Cannot use funny .git directory:\n\n$_gitdir"
exit 1
}
if {[catch {cd [file dirname $_gitdir]} err]} {
catch {wm withdraw .}
error_popup "No working directory [file dirname $_gitdir]:\n\n$err"
exit 1
}
set _reponame [lindex [file split \
[file normalize [file dirname $_gitdir]]] \
end]
######################################################################
##
## global init
set current_diff_path {}
set current_diff_side {}
set diff_actions [list]
set ui_status_value {Initializing...}
set HEAD {}
set PARENT {}
set MERGE_HEAD [list]
set commit_type {}
set empty_tree {}
set current_branch {}
set current_diff_path {}
set selected_commit_type new
######################################################################
##
## task management
set rescan_active 0
set diff_active 0
set last_clicked {}
set disable_on_lock [list]
set index_lock_type none
proc lock_index {type} {
global index_lock_type disable_on_lock
if {$index_lock_type eq {none}} {
set index_lock_type $type
foreach w $disable_on_lock {
uplevel #0 $w disabled
}
return 1
} elseif {$index_lock_type eq "begin-$type"} {
set index_lock_type $type
return 1
}
return 0
}
proc unlock_index {} {
global index_lock_type disable_on_lock
set index_lock_type none
foreach w $disable_on_lock {
uplevel #0 $w normal
}
}
######################################################################
##
## status
proc repository_state {ctvar hdvar mhvar} {
global current_branch
upvar $ctvar ct $hdvar hd $mhvar mh
set mh [list]
if {[catch {set current_branch [git symbolic-ref HEAD]}]} {
set current_branch {}
} else {
regsub ^refs/((heads|tags|remotes)/)? \
$current_branch \
{} \
current_branch
}
if {[catch {set hd [git rev-parse --verify HEAD]}]} {
set hd {}
set ct initial
return
}
set merge_head [gitdir MERGE_HEAD]
if {[file exists $merge_head]} {
set ct merge
set fd_mh [open $merge_head r]
while {[gets $fd_mh line] >= 0} {
lappend mh $line
}
close $fd_mh
return
}
set ct normal
}
proc PARENT {} {
global PARENT empty_tree
set p [lindex $PARENT 0]
if {$p ne {}} {
return $p
}
if {$empty_tree eq {}} {
set empty_tree [git mktree << {}]
}
return $empty_tree
}
proc rescan {after {honor_trustmtime 1}} {
global HEAD PARENT MERGE_HEAD commit_type
global ui_index ui_workdir ui_status_value ui_comm
global rescan_active file_states
global repo_config
if {$rescan_active > 0 || ![lock_index read]} return
repository_state newType newHEAD newMERGE_HEAD
if {[string match amend* $commit_type]
&& $newType eq {normal}
&& $newHEAD eq $HEAD} {
} else {
set HEAD $newHEAD
set PARENT $newHEAD
set MERGE_HEAD $newMERGE_HEAD
set commit_type $newType
}
array unset file_states
if {![$ui_comm edit modified]
|| [string trim [$ui_comm get 0.0 end]] eq {}} {
if {[load_message GITGUI_MSG]} {
} elseif {[load_message MERGE_MSG]} {
} elseif {[load_message SQUASH_MSG]} {
}
$ui_comm edit reset
$ui_comm edit modified false
}
if {[is_enabled branch]} {
load_all_heads
populate_branch_menu
}
if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
rescan_stage2 {} $after
} else {
set rescan_active 1
set ui_status_value {Refreshing file status...}
set cmd [list git update-index]
lappend cmd -q
lappend cmd --unmerged
lappend cmd --ignore-missing
lappend cmd --refresh
set fd_rf [open "| $cmd" r]
fconfigure $fd_rf -blocking 0 -translation binary
fileevent $fd_rf readable \
[list rescan_stage2 $fd_rf $after]
}
}
proc rescan_stage2 {fd after} {
global ui_status_value
global rescan_active buf_rdi buf_rdf buf_rlo
if {$fd ne {}} {
read $fd
if {![eof $fd]} return
close $fd
}
set ls_others [list | git ls-files --others -z \
--exclude-per-directory=.gitignore]
set info_exclude [gitdir info exclude]
if {[file readable $info_exclude]} {
lappend ls_others "--exclude-from=$info_exclude"
}
set buf_rdi {}
set buf_rdf {}
set buf_rlo {}
set rescan_active 3
set ui_status_value {Scanning for modified files ...}
set fd_di [open "| git diff-index --cached -z [PARENT]" r]
set fd_df [open "| git diff-files -z" r]
set fd_lo [open $ls_others r]
fconfigure $fd_di -blocking 0 -translation binary -encoding binary
fconfigure $fd_df -blocking 0 -translation binary -encoding binary
fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
fileevent $fd_di readable [list read_diff_index $fd_di $after]
fileevent $fd_df readable [list read_diff_files $fd_df $after]
fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
}
proc load_message {file} {
global ui_comm
set f [gitdir $file]
if {[file isfile $f]} {
if {[catch {set fd [open $f r]}]} {
return 0
}
set content [string trim [read $fd]]
close $fd
regsub -all -line {[ \r\t]+$} $content {} content
$ui_comm delete 0.0 end
$ui_comm insert end $content
return 1
}
return 0
}
proc read_diff_index {fd after} {
global buf_rdi
append buf_rdi [read $fd]
set c 0
set n [string length $buf_rdi]
while {$c < $n} {
set z1 [string first "\0" $buf_rdi $c]
if {$z1 == -1} break
incr z1
set z2 [string first "\0" $buf_rdi $z1]
if {$z2 == -1} break
incr c
set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
merge_state \
[encoding convertfrom $p] \
[lindex $i 4]? \
[list [lindex $i 0] [lindex $i 2]] \
[list]
set c $z2
incr c
}
if {$c < $n} {
set buf_rdi [string range $buf_rdi $c end]
} else {
set buf_rdi {}
}
rescan_done $fd buf_rdi $after
}
proc read_diff_files {fd after} {
global buf_rdf
append buf_rdf [read $fd]
set c 0
set n [string length $buf_rdf]
while {$c < $n} {
set z1 [string first "\0" $buf_rdf $c]
if {$z1 == -1} break
incr z1
set z2 [string first "\0" $buf_rdf $z1]
if {$z2 == -1} break
incr c
set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
merge_state \
[encoding convertfrom $p] \
?[lindex $i 4] \
[list] \
[list [lindex $i 0] [lindex $i 2]]
set c $z2
incr c
}
if {$c < $n} {
set buf_rdf [string range $buf_rdf $c end]
} else {
set buf_rdf {}
}
rescan_done $fd buf_rdf $after
}
proc read_ls_others {fd after} {
global buf_rlo
append buf_rlo [read $fd]
set pck [split $buf_rlo "\0"]
set buf_rlo [lindex $pck end]
foreach p [lrange $pck 0 end-1] {
merge_state [encoding convertfrom $p] ?O
}
rescan_done $fd buf_rlo $after
}
proc rescan_done {fd buf after} {
global rescan_active
global file_states repo_config
upvar $buf to_clear
if {![eof $fd]} return
set to_clear {}
close $fd
if {[incr rescan_active -1] > 0} return
prune_selection
unlock_index
display_all_files
reshow_diff
uplevel #0 $after
}
proc prune_selection {} {
global file_states selected_paths
foreach path [array names selected_paths] {
if {[catch {set still_here $file_states($path)}]} {
unset selected_paths($path)
}
}
}
######################################################################
##
## diff
proc clear_diff {} {
global ui_diff current_diff_path current_diff_header
global ui_index ui_workdir
$ui_diff conf -state normal
$ui_diff delete 0.0 end
$ui_diff conf -state disabled
set current_diff_path {}
set current_diff_header {}
$ui_index tag remove in_diff 0.0 end
$ui_workdir tag remove in_diff 0.0 end
}
proc reshow_diff {} {
global ui_status_value file_states file_lists
global current_diff_path current_diff_side
set p $current_diff_path
if {$p eq {}} {
# No diff is being shown.
} elseif {$current_diff_side eq {}
|| [catch {set s $file_states($p)}]
|| [lsearch -sorted -exact $file_lists($current_diff_side) $p] == -1} {
clear_diff
} else {
show_diff $p $current_diff_side
}
}
proc handle_empty_diff {} {
global current_diff_path file_states file_lists
set path $current_diff_path
set s $file_states($path)
if {[lindex $s 0] ne {_M}} return
info_popup "No differences detected.
[short_path $path] has no changes.
The modification date of this file was updated
by another application, but the content within
the file was not changed.
A rescan will be automatically started to find
other files which may have the same state."
clear_diff
display_file $path __
rescan {set ui_status_value {Ready.}} 0
}
proc show_diff {path w {lno {}}} {
global file_states file_lists
global is_3way_diff diff_active repo_config
global ui_diff ui_status_value ui_index ui_workdir
global current_diff_path current_diff_side current_diff_header
if {$diff_active || ![lock_index read]} return
clear_diff
if {$lno == {}} {
set lno [lsearch -sorted -exact $file_lists($w) $path]
if {$lno >= 0} {
incr lno
}
}
if {$lno >= 1} {
$w tag add in_diff $lno.0 [expr {$lno + 1}].0
}
set s $file_states($path)
set m [lindex $s 0]
set is_3way_diff 0
set diff_active 1
set current_diff_path $path
set current_diff_side $w
set current_diff_header {}
set ui_status_value "Loading diff of [escape_path $path]..."
# - Git won't give us the diff, there's nothing to compare to!
#
if {$m eq {_O}} {
set max_sz [expr {128 * 1024}]
if {[catch {
set fd [open $path r]
set content [read $fd $max_sz]
close $fd
set sz [file size $path]
} err ]} {
set diff_active 0
unlock_index
set ui_status_value "Unable to display [escape_path $path]"
error_popup "Error loading file:\n\n$err"
return
}
$ui_diff conf -state normal
if {![catch {set type [exec file $path]}]} {
set n [string length $path]
if {[string equal -length $n $path $type]} {
set type [string range $type $n end]
regsub {^:?\s*} $type {} type
}
$ui_diff insert end "* $type\n" d_@
}
if {[string first "\0" $content] != -1} {
$ui_diff insert end \
"* Binary file (not showing content)." \
d_@
} else {
if {$sz > $max_sz} {
$ui_diff insert end \
"* Untracked file is $sz bytes.
* Showing only first $max_sz bytes.
" d_@
}
$ui_diff insert end $content
if {$sz > $max_sz} {
$ui_diff insert end "
* Untracked file clipped here by [appname].
* To see the entire file, use an external editor.
" d_@
}
}
$ui_diff conf -state disabled
set diff_active 0
unlock_index
set ui_status_value {Ready.}
return
}
set cmd [list | git]
if {$w eq $ui_index} {
lappend cmd diff-index
lappend cmd --cached
} elseif {$w eq $ui_workdir} {
if {[string index $m 0] eq {U}} {
lappend cmd diff
} else {
lappend cmd diff-files
}
}
lappend cmd -p
lappend cmd --no-color
if {$repo_config(gui.diffcontext) > 0} {
lappend cmd "-U$repo_config(gui.diffcontext)"
}
if {$w eq $ui_index} {
lappend cmd [PARENT]
}
lappend cmd --
lappend cmd $path
if {[catch {set fd [open $cmd r]} err]} {
set diff_active 0
unlock_index
set ui_status_value "Unable to display [escape_path $path]"
error_popup "Error loading diff:\n\n$err"
return
}
fconfigure $fd \
-blocking 0 \
-encoding binary \
-translation binary
fileevent $fd readable [list read_diff $fd]
}
proc read_diff {fd} {
global ui_diff ui_status_value diff_active
global is_3way_diff current_diff_header
$ui_diff conf -state normal
while {[gets $fd line] >= 0} {
# -- Cleanup uninteresting diff header lines.
#
if { [string match {diff --git *} $line]
|| [string match {diff --cc *} $line]
|| [string match {diff --combined *} $line]
|| [string match {--- *} $line]
|| [string match {+++ *} $line]} {
append current_diff_header $line "\n"
continue
}
if {[string match {index *} $line]} continue
if {$line eq {deleted file mode 120000}} {
set line "deleted symlink"
}
# -- Automatically detect if this is a 3 way diff.
#
if {[string match {@@@ *} $line]} {set is_3way_diff 1}
if {[string match {mode *} $line]
|| [string match {new file *} $line]
|| [string match {deleted file *} $line]
|| [string match {Binary files * and * differ} $line]
|| $line eq {\ No newline at end of file}
|| [regexp {^\* Unmerged path } $line]} {
set tags {}
} elseif {$is_3way_diff} {
set op [string range $line 0 1]
switch -- $op {
{ } {set tags {}}
{@@} {set tags d_@}
{ +} {set tags d_s+}
{ -} {set tags d_s-}
{+ } {set tags d_+s}
{- } {set tags d_-s}
{--} {set tags d_--}
{++} {
if {[regexp {^\+\+([<>]{7} |={7})} $line _g op]} {
set line [string replace $line 0 1 { }]
set tags d$op
} else {
set tags d_++
}
}
default {
puts "error: Unhandled 3 way diff marker: {$op}"
set tags {}
}
}
} else {
set op [string index $line 0]
switch -- $op {
{ } {set tags {}}
{@} {set tags d_@}
{-} {set tags d_-}
{+} {
if {[regexp {^\+([<>]{7} |={7})} $line _g op]} {
set line [string replace $line 0 0 { }]
set tags d$op
} else {
set tags d_+
}
}
default {
puts "error: Unhandled 2 way diff marker: {$op}"
set tags {}
}
}
}
$ui_diff insert end $line $tags
if {[string index $line end] eq "\r"} {
$ui_diff tag add d_cr {end - 2c}
}
$ui_diff insert end "\n" $tags
}
$ui_diff conf -state disabled
if {[eof $fd]} {
close $fd
set diff_active 0
unlock_index
set ui_status_value {Ready.}
if {[$ui_diff index end] eq {2.0}} {
handle_empty_diff
}
}
}
proc apply_hunk {x y} {
global current_diff_path current_diff_header current_diff_side
global ui_diff ui_index file_states
if {$current_diff_path eq {} || $current_diff_header eq {}} return
if {![lock_index apply_hunk]} return
set apply_cmd {git apply --cached --whitespace=nowarn}
set mi [lindex $file_states($current_diff_path) 0]
if {$current_diff_side eq $ui_index} {
set mode unstage
lappend apply_cmd --reverse
if {[string index $mi 0] ne {M}} {
unlock_index
return
}
} else {
set mode stage
if {[string index $mi 1] ne {M}} {
unlock_index
return
}
}
set s_lno [lindex [split [$ui_diff index @$x,$y] .] 0]
set s_lno [$ui_diff search -backwards -regexp ^@@ $s_lno.0 0.0]
if {$s_lno eq {}} {
unlock_index
return
}
set e_lno [$ui_diff search -forwards -regexp ^@@ "$s_lno + 1 lines" end]
if {$e_lno eq {}} {
set e_lno end
}
if {[catch {
set p [open "| $apply_cmd" w]
fconfigure $p -translation binary -encoding binary
puts -nonewline $p $current_diff_header
puts -nonewline $p [$ui_diff get $s_lno $e_lno]
close $p} err]} {
error_popup "Failed to $mode selected hunk.\n\n$err"
unlock_index
return
}
$ui_diff conf -state normal
$ui_diff delete $s_lno $e_lno