proc load_last_commit {} {
global HEAD PARENT MERGE_HEAD commit_type ui_comm
global repo_config
if {[llength $PARENT] == 0} {
error_popup [mc "There is nothing to amend.
You are about to create the initial commit. There is no commit before this to amend.
"]
return
}
repository_state curType curHEAD curMERGE_HEAD
if {$curType eq {merge}} {
error_popup [mc "Cannot amend while merging.
You are currently in the middle of a merge that has not been fully completed. You cannot amend the prior commit unless you first abort the current merge activity.
"]
return
}
set msg {}
set parents [list]
if {[catch {
set fd [git_read cat-file commit $curHEAD]
fconfigure $fd -encoding binary -translation lf
set enc utf-8
while {[gets $fd line] > 0} {
if {[string match {parent *} $line]} {
lappend parents [string range $line 7 end]
} elseif {[string match {encoding *} $line]} {
set enc [string tolower [string range $line 9 end]]
}
}
set msg [read $fd]
close $fd
set enc [tcl_encoding $enc]
if {$enc ne {}} {
set msg [encoding convertfrom $enc $msg]
}
set msg [string trim $msg]
} err]} {
error_popup [strcat [mc "Error loading commit data for amend:"] "\n\n$err"]
return
}
set HEAD $curHEAD
set PARENT $parents
set MERGE_HEAD [list]
switch -- [llength $parents] {
0 {set commit_type amend-initial}
1 {set commit_type amend}
default {set commit_type amend-merge}
}
$ui_comm delete 0.0 end
$ui_comm insert end $msg
$ui_comm edit reset
$ui_comm edit modified false
rescan ui_ready
}
set GIT_COMMITTER_IDENT {}
proc committer_ident {} {
global GIT_COMMITTER_IDENT
if {$GIT_COMMITTER_IDENT eq {}} {
if {[catch {set me [git var GIT_COMMITTER_IDENT]} err]} {
error_popup [strcat [mc "Unable to obtain your identity:"] "\n\n$err"]
return {}
}
if {![regexp {^(.*) [0-9]+ [-+0-9]+$} \
$me me GIT_COMMITTER_IDENT]} {
error_popup [strcat [mc "Invalid GIT_COMMITTER_IDENT:"] "\n\n$me"]
return {}
}
}
return $GIT_COMMITTER_IDENT
}
proc do_signoff {} {
global ui_comm
set me [committer_ident]
if {$me eq {}} return
set sob "Signed-off-by: $me"
set last [$ui_comm get {end -1c linestart} {end -1c}]
if {$last ne $sob} {
$ui_comm edit separator
if {$last ne {}
&& ![regexp {^[A-Z][A-Za-z]*-[A-Za-z-]+: *} $last]} {
$ui_comm insert end "\n"
}
$ui_comm insert end "\n$sob"
$ui_comm edit separator
$ui_comm see end
}
}
proc create_new_commit {} {
global commit_type ui_comm
set commit_type normal
$ui_comm delete 0.0 end
$ui_comm edit reset
$ui_comm edit modified false
rescan ui_ready
}
proc setup_commit_encoding {msg_wt {quiet 0}} {
global repo_config
if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
set enc utf-8
}
set use_enc [tcl_encoding $enc]
if {$use_enc ne {}} {
fconfigure $msg_wt -encoding $use_enc
} else {
if {!$quiet} {
error_popup [mc "warning: Tcl does not support encoding '%s'." $enc]
}
fconfigure $msg_wt -encoding utf-8
}
}
proc commit_tree {} {
global HEAD commit_type file_states ui_comm repo_config
global pch_error
if {[committer_ident] eq {}} return
if {![lock_index update]} return
repository_state curType curHEAD curMERGE_HEAD
if {[string match amend* $commit_type]
&& $curType eq {normal}
&& $curHEAD eq $HEAD} {
} elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
info_popup [mc "Last scanned state does not match repository state.
Another Git program has modified this repository since the last scan. A rescan must be performed before another commit can be created.
The rescan will be automatically started now.
"]
unlock_index
rescan ui_ready
return
}
set files_ready 0
foreach path [array names file_states] {
set s $file_states($path)
switch -glob -- [lindex $s 0] {
_? {continue}
A? -
D? -
T? -
M? {set files_ready 1}
_U -
U? {
error_popup [mc "Unmerged files cannot be committed.
File %s has merge conflicts. You must resolve them and stage the file before committing.
" [short_path $path]]
unlock_index
return
}
default {
error_popup [mc "Unknown file state %s detected.
File %s cannot be committed by this program.
" [lindex $s 0] [short_path $path]]
}
}
}
if {!$files_ready && ![string match *merge $curType] && ![is_enabled nocommit]} {
info_popup [mc "No changes to commit.
You must stage at least 1 file before you can commit.
"]
unlock_index
return
}
if {[is_enabled nocommitmsg]} { do_quit 0 }
set msg [string trim [$ui_comm get 1.0 end]]
regsub -all -line {[ \t\r]+$} $msg {} msg
if {$msg eq {}} {
error_popup [mc "Please supply a commit message.
A good commit message has the following format:
- First line: Describe in one sentence what you did.
- Second line: Blank
- Remaining lines: Describe why this change is good.
"]
unlock_index
return
}
set msg_p [gitdir GITGUI_EDITMSG]
set msg_wt [open $msg_p w]
fconfigure $msg_wt -translation lf
setup_commit_encoding $msg_wt
puts $msg_wt $msg
close $msg_wt
if {[is_enabled nocommit]} { do_quit 0 }
set fd_ph [githook_read pre-commit]
if {$fd_ph eq {}} {
commit_commitmsg $curHEAD $msg_p
return
}
ui_status [mc "Calling pre-commit hook..."]
set pch_error {}
fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
fileevent $fd_ph readable \
[list commit_prehook_wait $fd_ph $curHEAD $msg_p]
}
proc commit_prehook_wait {fd_ph curHEAD msg_p} {
global pch_error
append pch_error [read $fd_ph]
fconfigure $fd_ph -blocking 1
if {[eof $fd_ph]} {
if {[catch {close $fd_ph}]} {
catch {file delete $msg_p}
ui_status [mc "Commit declined by pre-commit hook."]
hook_failed_popup pre-commit $pch_error
unlock_index
} else {
commit_commitmsg $curHEAD $msg_p
}
set pch_error {}
return
}
fconfigure $fd_ph -blocking 0
}
proc commit_commitmsg {curHEAD msg_p} {
global pch_error
set fd_ph [githook_read commit-msg $msg_p]
if {$fd_ph eq {}} {
commit_writetree $curHEAD $msg_p
return
}
ui_status [mc "Calling commit-msg hook..."]
set pch_error {}
fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
fileevent $fd_ph readable \
[list commit_commitmsg_wait $fd_ph $curHEAD $msg_p]
}
proc commit_commitmsg_wait {fd_ph curHEAD msg_p} {
global pch_error
append pch_error [read $fd_ph]
fconfigure $fd_ph -blocking 1
if {[eof $fd_ph]} {
if {[catch {close $fd_ph}]} {
catch {file delete $msg_p}
ui_status [mc "Commit declined by commit-msg hook."]
hook_failed_popup commit-msg $pch_error
unlock_index
} else {
commit_writetree $curHEAD $msg_p
}
set pch_error {}
return
}
fconfigure $fd_ph -blocking 0
}
proc commit_writetree {curHEAD msg_p} {
ui_status [mc "Committing changes..."]
set fd_wt [git_read write-tree]
fileevent $fd_wt readable \
[list commit_committree $fd_wt $curHEAD $msg_p]
}
proc commit_committree {fd_wt curHEAD msg_p} {
global HEAD PARENT MERGE_HEAD commit_type
global current_branch
global ui_comm selected_commit_type
global file_states selected_paths rescan_active
global repo_config
gets $fd_wt tree_id
if {[catch {close $fd_wt} err]} {
catch {file delete $msg_p}
error_popup [strcat [mc "write-tree failed:"] "\n\n$err"]
ui_status [mc "Commit failed."]
unlock_index
return
}
if {$commit_type eq {normal}} {
set fd_ot [git_read cat-file commit $PARENT]
fconfigure $fd_ot -encoding binary -translation lf
set old_tree [gets $fd_ot]
close $fd_ot
if {[string equal -length 5 {tree } $old_tree]
&& [string length $old_tree] == 45} {
set old_tree [string range $old_tree 5 end]
} else {
error [mc "Commit %s appears to be corrupt" $PARENT]
}
if {$tree_id eq $old_tree} {
catch {file delete $msg_p}
info_popup [mc "No changes to commit.
No files were modified by this commit and it was not a merge commit.
A rescan will be automatically started now.
"]
unlock_index
rescan {ui_status [mc "No changes to commit."]}
return
}
}
set cmd [list commit-tree $tree_id]
foreach p [concat $PARENT $MERGE_HEAD] {
lappend cmd -p $p
}
lappend cmd <$msg_p
if {[catch {set cmt_id [eval git $cmd]} err]} {
catch {file delete $msg_p}
error_popup [strcat [mc "commit-tree failed:"] "\n\n$err"]
ui_status [mc "Commit failed."]
unlock_index
return
}
set reflogm commit
if {$commit_type ne {normal}} {
append reflogm " ($commit_type)"
}
set msg_fd [open $msg_p r]
setup_commit_encoding $msg_fd 1
gets $msg_fd subject
close $msg_fd
append reflogm {: } $subject
if {[catch {
git update-ref -m $reflogm HEAD $cmt_id $curHEAD
} err]} {
catch {file delete $msg_p}
error_popup [strcat [mc "update-ref failed:"] "\n\n$err"]
ui_status [mc "Commit failed."]
unlock_index
return
}
catch {file delete $msg_p}
catch {file delete [gitdir MERGE_HEAD]}
catch {file delete [gitdir MERGE_MSG]}
catch {file delete [gitdir SQUASH_MSG]}
catch {file delete [gitdir GITGUI_MSG]}
if {[get_config rerere.enabled] eq {}} {
set rerere [file isdirectory [gitdir rr-cache]]
} else {
set rerere [is_config_true rerere.enabled]
}
if {$rerere} {
catch {git rerere}
}
set fd_ph [githook_read post-commit]
if {$fd_ph ne {}} {
global pch_error
set pch_error {}
fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
fileevent $fd_ph readable \
[list commit_postcommit_wait $fd_ph $cmt_id]
}
$ui_comm delete 0.0 end
$ui_comm edit reset
$ui_comm edit modified false
if {$::GITGUI_BCK_exists} {
catch {file delete [gitdir GITGUI_BCK]}
set ::GITGUI_BCK_exists 0
}
if {[is_enabled singlecommit]} { do_quit 0 }
set selected_commit_type new
set commit_type normal
set HEAD $cmt_id
set PARENT $cmt_id
set MERGE_HEAD [list]
foreach path [array names file_states] {
set s $file_states($path)
set m [lindex $s 0]
switch -glob -- $m {
_O -
_M -
_D {continue}
__ -
A_ -
M_ -
T_ -
D_ {
unset file_states($path)
catch {unset selected_paths($path)}
}
DO {
set file_states($path) [list _O [lindex $s 1] {} {}]
}
AM -
AD -
AT -
TM -
TD -
MM -
MT -
MD {
set file_states($path) [list \
_[string index $m 1] \
[lindex $s 1] \
[lindex $s 3] \
{}]
}
}
}
display_all_files
unlock_index
reshow_diff
ui_status [mc "Created commit %s: %s" [string range $cmt_id 0 7] $subject]
}
proc commit_postcommit_wait {fd_ph cmt_id} {
global pch_error
append pch_error [read $fd_ph]
fconfigure $fd_ph -blocking 1
if {[eof $fd_ph]} {
if {[catch {close $fd_ph}]} {
hook_failed_popup post-commit $pch_error 0
}
unset pch_error
return
}
fconfigure $fd_ph -blocking 0
}