I expirienced that working with submodules can be confusing. This indicator
will make you notice very easy when you switch into a submodule.
The new prompt will look like this: (sub:master)
Adding a new optional env variable for the new feature.
Signed-off-by: Benjamin Fuchs <em...@benjaminfuchs.de>
---
contrib/completion/git-prompt.sh | 37 ++++++++++++++++++++++++++++++++++++-
1 file changed, 36 insertions(+), 1 deletion(-)
diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
index 97eacd7..4c82e7f 100644
--- a/contrib/completion/git-prompt.sh
+++ b/contrib/completion/git-prompt.sh
@@ -93,6 +93,10 @@
# directory is set up to be ignored by git, then set
# GIT_PS1_HIDE_IF_PWD_IGNORED to a nonempty value. Override this on the
# repository level by setting bash.hideIfPwdIgnored to "false".
+#
+# If you would like __git_ps1 to indicate that you are in a submodule,
+# set GIT_PS1_SHOWSUBMODULE. In this case a "sub:" will be added before
+# the branch name.
# check whether printf supports -v
__git_printf_supports_v=
@@ -284,6 +288,32 @@ __git_eread ()
test -r "$f" && read "$@" <"$f"
}
+# __git_is_submodule
+# Based on:
+#
http://stackoverflow.com/questions/7359204/git-command-line-know-if-in-submodule
+__git_is_submodule ()
+{
+ local git_dir parent_git module_name path
+ # Find the root of this git repo, then check if its parent dir is also
a repo
+ git_dir="$(git rev-parse --show-toplevel)"
+ module_name="$(basename "$git_dir")"
+ parent_git="$(cd "$git_dir/.." && git rev-parse --show-toplevel 2>
/dev/null)"
+ if [[ -n $parent_git ]]; then
+ # List all the submodule paths for the parent repo
+ while read path
+ do
+ if [[ "$path" != "$module_name" ]]; then continue; fi
+ if [[ -d "$git_dir/../$path" ]]; then return 0; fi
+ done < <(cd $parent_git && git submodule --quiet foreach 'echo
$path' 2> /dev/null)
+ fi
+ return 1
+}
+
+__git_ps1_submodule ()
+{
+ __git_is_submodule && printf "sub:"
+}
+
# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
# when called from PS1 using command substitution
# in this mode it prints text to add to bash PS1 prompt (includes branch name)
@@ -513,8 +543,13 @@ __git_ps1 ()
b="\${__git_ps1_branch_name}"
fi
+ local sub=""
+ if [ -n "${GIT_PS1_SHOWSUBMODULE}" ]; then
+ sub="$(__git_ps1_submodule)"
+ fi
+
local f="$w$i$s$u"
- local gitstring="$c$b${f:+$z$f}$r$p"
+ local gitstring="$c$sub$b${f:+$z$f}$r$p"
if [ $pcmode = yes ]; then
if [ "${__git_printf_supports_v-}" != yes ]; then
--
2.7.4
