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git-gui: set GIT_DIR and GIT_WORK_TREE after setup

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Rather than juggling with the env var GIT_DIR around the invocation of
gitk, set it and GIT_WORK_TREE after finishing setup, ensuring that any
external tool works with the setup we're running with.

This also allows us to remove a couple of conditionals when running gitk
or git gui in a submodule, as we know that the variables are present and
have to be unset and reset before and after the invocation.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This commit is contained in:
Giuseppe Bilotta
2010-01-24 00:59:00 +01:00
committed by Shawn O. Pearce
parent 3748b03d92
commit a9fa11fe5b
1 changed files with 20 additions and 23 deletions
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39
git-gui.sh
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@ -1171,6 +1171,9 @@ if {[lindex $_reponame end] eq {.git}} {
set _reponame [lindex $_reponame end]
}
set env(GIT_DIR) $_gitdir
set env(GIT_WORK_TREE) $_gitworktree
######################################################################
##
## global init
@ -1979,7 +1982,7 @@ set starting_gitk_msg [mc "Starting gitk... please wait..."]
proc do_gitk {revs {is_submodule false}} {
global current_diff_path file_states current_diff_side ui_index
global _gitworktree
global _gitdir _gitworktree
# -- Always start gitk through whatever we were loaded with. This
# lets us bypass using shell process on Windows systems.
@ -1991,19 +1994,12 @@ proc do_gitk {revs {is_submodule false}} {
} else {
global env
if {[info exists env(GIT_DIR)]} {
set old_GIT_DIR $env(GIT_DIR)
} else {
set old_GIT_DIR {}
}
set pwd [pwd]
if {!$is_submodule} {
if {![is_bare]} {
cd $_gitworktree
}
set env(GIT_DIR) [file normalize [gitdir]]
} else {
cd $current_diff_path
if {$revs eq {--}} {
@ -2024,15 +2020,18 @@ proc do_gitk {revs {is_submodule false}} {
}
set revs $old_sha1...$new_sha1
}
if {[info exists env(GIT_DIR)]} {
# GIT_DIR and GIT_WORK_TREE for the submodule are not the ones
# we've been using for the main repository, so unset them.
# TODO we could make life easier (start up faster?) for gitk
# by setting these to the appropriate values to allow gitk
# to skip the heuristics to find their proper value
unset env(GIT_DIR)
}
unset env(GIT_WORK_TREE)
}
eval exec $cmd $revs "--" "--" &
if {$old_GIT_DIR ne {}} {
set env(GIT_DIR) $old_GIT_DIR
}
set env(GIT_DIR) $_gitdir
set env(GIT_WORK_TREE) $_gitworktree
cd $pwd
ui_status $::starting_gitk_msg
@ -2053,22 +2052,20 @@ proc do_git_gui {} {
error_popup [mc "Couldn't find git gui in PATH"]
} else {
global env
global _gitdir _gitworktree
if {[info exists env(GIT_DIR)]} {
set old_GIT_DIR $env(GIT_DIR)
# see note in do_gitk about unsetting these vars when
# running tools in a submodule
unset env(GIT_DIR)
} else {
set old_GIT_DIR {}
}
unset env(GIT_WORK_TREE)
set pwd [pwd]
cd $current_diff_path
eval exec $exe gui &
if {$old_GIT_DIR ne {}} {
set env(GIT_DIR) $old_GIT_DIR
}
set env(GIT_DIR) $_gitdir
set env(GIT_WORK_TREE) $_gitworktree
cd $pwd
ui_status $::starting_gitk_msg