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-rw-r--r--contrib/completion/git-prompt.sh34
-rwxr-xr-xt/t9903-bash-prompt.sh44
2 files changed, 54 insertions, 24 deletions
diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
index 7b732d2aeb..bd7ff291b2 100644
--- a/contrib/completion/git-prompt.sh
+++ b/contrib/completion/git-prompt.sh
@@ -207,7 +207,18 @@ __git_ps1_show_upstream ()
p=" u+${count#* }-${count% *}" ;;
esac
if [[ -n "$count" && -n "$name" ]]; then
- p="$p $(git rev-parse --abbrev-ref "$upstream" 2>/dev/null)"
+ __git_ps1_upstream_name=$(git rev-parse \
+ --abbrev-ref "$upstream" 2>/dev/null)
+ if [ $pcmode = yes ]; then
+ # see the comments around the
+ # __git_ps1_branch_name variable below
+ p="$p \${__git_ps1_upstream_name}"
+ else
+ p="$p ${__git_ps1_upstream_name}"
+ # not needed anymore; keep user's
+ # environment clean
+ unset __git_ps1_upstream_name
+ fi
fi
fi
@@ -438,8 +449,27 @@ __git_ps1 ()
__git_ps1_colorize_gitstring
fi
+ b=${b##refs/heads/}
+ if [ $pcmode = yes ]; then
+ # In pcmode (and only pcmode) the contents of
+ # $gitstring are subject to expansion by the shell.
+ # Avoid putting the raw ref name in the prompt to
+ # protect the user from arbitrary code execution via
+ # specially crafted ref names (e.g., a ref named
+ # '$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)' would execute
+ # 'sudo rm -rf /' when the prompt is drawn). Instead,
+ # put the ref name in a new global variable (in the
+ # __git_ps1_* namespace to avoid colliding with the
+ # user's environment) and reference that variable from
+ # PS1.
+ __git_ps1_branch_name=$b
+ # note that the $ is escaped -- the variable will be
+ # expanded later (when it's time to draw the prompt)
+ b="\${__git_ps1_branch_name}"
+ fi
+
local f="$w$i$s$u"
- local gitstring="$c${b##refs/heads/}${f:+$z$f}$r$p"
+ local gitstring="$c$b${f:+$z$f}$r$p"
if [ $pcmode = yes ]; then
if [ "${__git_printf_supports_v-}" != yes ]; then
diff --git a/t/t9903-bash-prompt.sh b/t/t9903-bash-prompt.sh
index 59f875e830..6efd0d9c78 100755
--- a/t/t9903-bash-prompt.sh
+++ b/t/t9903-bash-prompt.sh
@@ -452,53 +452,53 @@ test_expect_success 'prompt - format string starting with dash' '
'
test_expect_success 'prompt - pc mode' '
- printf "BEFORE: (master):AFTER" >expected &&
+ printf "BEFORE: (\${__git_ps1_branch_name}):AFTER\\nmaster" >expected &&
printf "" >expected_output &&
(
__git_ps1 "BEFORE:" ":AFTER" >"$actual" &&
test_cmp expected_output "$actual" &&
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - bash color pc mode - branch name' '
- printf "BEFORE: (${c_green}master${c_clear}):AFTER" >expected &&
+ printf "BEFORE: (${c_green}\${__git_ps1_branch_name}${c_clear}):AFTER\\nmaster" >expected &&
(
GIT_PS1_SHOWCOLORHINTS=y &&
__git_ps1 "BEFORE:" ":AFTER" >"$actual"
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - bash color pc mode - detached head' '
- printf "BEFORE: (${c_red}(%s...)${c_clear}):AFTER" $(git log -1 --format="%h" b1^) >expected &&
+ printf "BEFORE: (${c_red}\${__git_ps1_branch_name}${c_clear}):AFTER\\n(%s...)" $(git log -1 --format="%h" b1^) >expected &&
git checkout b1^ &&
test_when_finished "git checkout master" &&
(
GIT_PS1_SHOWCOLORHINTS=y &&
__git_ps1 "BEFORE:" ":AFTER" &&
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - bash color pc mode - dirty status indicator - dirty worktree' '
- printf "BEFORE: (${c_green}master${c_clear} ${c_red}*${c_clear}):AFTER" >expected &&
+ printf "BEFORE: (${c_green}\${__git_ps1_branch_name}${c_clear} ${c_red}*${c_clear}):AFTER\\nmaster" >expected &&
echo "dirty" >file &&
test_when_finished "git reset --hard" &&
(
GIT_PS1_SHOWDIRTYSTATE=y &&
GIT_PS1_SHOWCOLORHINTS=y &&
__git_ps1 "BEFORE:" ":AFTER" &&
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - bash color pc mode - dirty status indicator - dirty index' '
- printf "BEFORE: (${c_green}master${c_clear} ${c_green}+${c_clear}):AFTER" >expected &&
+ printf "BEFORE: (${c_green}\${__git_ps1_branch_name}${c_clear} ${c_green}+${c_clear}):AFTER\\nmaster" >expected &&
echo "dirty" >file &&
test_when_finished "git reset --hard" &&
git add -u &&
@@ -506,13 +506,13 @@ test_expect_success 'prompt - bash color pc mode - dirty status indicator - dirt
GIT_PS1_SHOWDIRTYSTATE=y &&
GIT_PS1_SHOWCOLORHINTS=y &&
__git_ps1 "BEFORE:" ":AFTER" &&
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - bash color pc mode - dirty status indicator - dirty index and worktree' '
- printf "BEFORE: (${c_green}master${c_clear} ${c_red}*${c_green}+${c_clear}):AFTER" >expected &&
+ printf "BEFORE: (${c_green}\${__git_ps1_branch_name}${c_clear} ${c_red}*${c_green}+${c_clear}):AFTER\\nmaster" >expected &&
echo "dirty index" >file &&
test_when_finished "git reset --hard" &&
git add -u &&
@@ -521,25 +521,25 @@ test_expect_success 'prompt - bash color pc mode - dirty status indicator - dirt
GIT_PS1_SHOWCOLORHINTS=y &&
GIT_PS1_SHOWDIRTYSTATE=y &&
__git_ps1 "BEFORE:" ":AFTER" &&
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - bash color pc mode - dirty status indicator - before root commit' '
- printf "BEFORE: (${c_green}master${c_clear} ${c_green}#${c_clear}):AFTER" >expected &&
+ printf "BEFORE: (${c_green}\${__git_ps1_branch_name}${c_clear} ${c_green}#${c_clear}):AFTER\\nmaster" >expected &&
(
GIT_PS1_SHOWDIRTYSTATE=y &&
GIT_PS1_SHOWCOLORHINTS=y &&
cd otherrepo &&
__git_ps1 "BEFORE:" ":AFTER" &&
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - bash color pc mode - inside .git directory' '
- printf "BEFORE: (${c_green}GIT_DIR!${c_clear}):AFTER" >expected &&
+ printf "BEFORE: (${c_green}\${__git_ps1_branch_name}${c_clear}):AFTER\\nGIT_DIR!" >expected &&
echo "dirty" >file &&
test_when_finished "git reset --hard" &&
(
@@ -547,13 +547,13 @@ test_expect_success 'prompt - bash color pc mode - inside .git directory' '
GIT_PS1_SHOWCOLORHINTS=y &&
cd .git &&
__git_ps1 "BEFORE:" ":AFTER" &&
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - bash color pc mode - stash status indicator' '
- printf "BEFORE: (${c_green}master${c_clear} ${c_lblue}\$${c_clear}):AFTER" >expected &&
+ printf "BEFORE: (${c_green}\${__git_ps1_branch_name}${c_clear} ${c_lblue}\$${c_clear}):AFTER\\nmaster" >expected &&
echo 2 >file &&
git stash &&
test_when_finished "git stash drop" &&
@@ -561,29 +561,29 @@ test_expect_success 'prompt - bash color pc mode - stash status indicator' '
GIT_PS1_SHOWSTASHSTATE=y &&
GIT_PS1_SHOWCOLORHINTS=y &&
__git_ps1 "BEFORE:" ":AFTER" &&
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - bash color pc mode - untracked files status indicator' '
- printf "BEFORE: (${c_green}master${c_clear} ${c_red}%%${c_clear}):AFTER" >expected &&
+ printf "BEFORE: (${c_green}\${__git_ps1_branch_name}${c_clear} ${c_red}%%${c_clear}):AFTER\\nmaster" >expected &&
(
GIT_PS1_SHOWUNTRACKEDFILES=y &&
GIT_PS1_SHOWCOLORHINTS=y &&
__git_ps1 "BEFORE:" ":AFTER" &&
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - zsh color pc mode' '
- printf "BEFORE: (%%F{green}master%%f):AFTER" >expected &&
+ printf "BEFORE: (%%F{green}\${__git_ps1_branch_name}%%f):AFTER\\nmaster" >expected &&
(
ZSH_VERSION=5.0.0 &&
GIT_PS1_SHOWCOLORHINTS=y &&
__git_ps1 "BEFORE:" ":AFTER" >"$actual"
- printf "%s" "$PS1" >"$actual"
+ printf "%s\\n%s" "$PS1" "${__git_ps1_branch_name}" >"$actual"
) &&
test_cmp expected "$actual"
'
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 16:10:05 +0000