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git-gui: Generate blame on uncommitted working tree file

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If the user doesn't give us a revision parameter to our blame
subcommand then we can generate blame against the working tree
file by passing the file path off to blame with the --contents
argument.  In this case we cannot obtain the contents of the
file from the ODB; instead we must obtain the contents by
reading the working directory file as-is.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This commit is contained in:
Shawn O. Pearce 2007-05-08 22:48:47 -04:00
parent 3e45ee1ef2
commit a0db0d61fb
2 changed files with 25 additions and 11 deletions
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20
git-gui.sh
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@ -1605,6 +1605,7 @@ browser {
}
blame {
set subcommand_args {rev? path?}
set head {}
set path {}
set is_path 0
foreach a $argv {
@ -1614,27 +1615,30 @@ blame {
break
} elseif {$a eq {--}} {
if {$path ne {}} {
if {$current_branch ne {}} usage
set current_branch $path
if {$head ne {}} usage
set head $path
set path {}
}
set is_path 1
} elseif {$current_branch eq {}} {
if {$current_branch ne {}} usage
set current_branch $a
} elseif {$head eq {}} {
if {$head ne {}} usage
set head $a
} else {
usage
}
}
unset is_path
if {$current_branch eq {} && $path ne {}} {
if {$head eq {}} {
set current_branch [git symbolic-ref HEAD]
regsub ^refs/((heads|tags|remotes)/)? \
$current_branch {} current_branch
} else {
set current_branch $head
}
if {$current_branch eq {} || $path eq {}} usage
blame::new $current_branch $path
if {$path eq {}} usage
blame::new $head $path
return
}
citool -

16
lib/blame.tcl
View file

@ -170,8 +170,12 @@ constructor new {i_commit i_path} {
bind $top <Visibility> "focus $top"
bind $top <Destroy> [list delete_this $this]
set cmd [list git cat-file blob "$commit:$path"]
set fd [open "| $cmd" r]
if {$commit eq {}} {
set fd [open $path r]
} else {
set cmd [list git cat-file blob "$commit:$path"]
set fd [open "| $cmd" r]
}
fconfigure $fd -blocking 0 -translation lf -encoding binary
fileevent $fd readable [cb _read_file $fd]
}
@ -194,7 +198,13 @@ method _read_file {fd} {
if {[eof $fd]} {
close $fd
_status $this
set cmd [list git blame -M -C --incremental $commit -- $path]
set cmd [list git blame -M -C --incremental]
if {$commit eq {}} {
lappend cmd --contents $path
} else {
lappend cmd $commit
}
lappend cmd -- $path
set fd [open "| $cmd" r]
fconfigure $fd -blocking 0 -translation lf -encoding binary
fileevent $fd readable [cb _read_blame $fd]