You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
2.6 KiB
53 lines
2.6 KiB
# Don't skip this file until a Zsh release does the necessary quoting. |
|
# This is because even though 5.8.1 undid recursive prompt_subst inside |
|
# prompt sequences, % characters in relevant fields will still be rendered |
|
# incorrectly in vcs_info, on all Zsh releases up to writing this. |
|
# |
|
# There is no release yet that does this right, since it requires changing |
|
# how what vcs_info hooks expect to receive. Even so, I'd rather be correct |
|
# and break custom vcs_info hooks than have a broken prompt. |
|
|
|
# Quote necessary $hook_com[<field>] items just before they are used |
|
# in the line "VCS_INFO_hook 'post-backend'" of the VCS_INFO_formats |
|
# function, where <field> is: |
|
# |
|
# base: the full path of the repository's root directory. |
|
# base-name: the name of the repository's root directory. |
|
# branch: the name of the currently checked out branch. |
|
# misc: a string that may contain anything the vcs_info backend wants. |
|
# revision: an identifier of the currently checked out revision. |
|
# subdir: the path of the current directory relative to the |
|
# repository's root directory. |
|
# |
|
# This patch %-quotes these fields previous to their use in vcs_info hooks and |
|
# the zformat call and, eventually, when they get expanded in the prompt. |
|
# It's important to quote these here, and not later after hooks have modified the |
|
# fields, because then we could be quoting % characters from valid prompt sequences, |
|
# like %F{color}, %B, etc. |
|
# |
|
# 32 │ hook_com[subdir]="$(VCS_INFO_reposub ${hook_com[base]})" |
|
# 33 │ hook_com[subdir_orig]="${hook_com[subdir]}" |
|
# 34 │ |
|
# 35 + │ for tmp in base base-name branch misc revision subdir; do |
|
# 36 + │ hook_com[$tmp]="${hook_com[$tmp]//\%/%%}" |
|
# 37 + │ done |
|
# 38 + │ |
|
# 39 │ VCS_INFO_hook 'post-backend' |
|
# |
|
# This is especially important so that no command substitution is performed |
|
# due to malicious input as a consequence of CVE-2021-45444, which affects |
|
# zsh versions from 5.0.3 to 5.8. |
|
# |
|
autoload -Uz +X regexp-replace VCS_INFO_formats 2>/dev/null || return 0 |
|
|
|
# We use $tmp here because it's already a local variable in VCS_INFO_formats |
|
typeset PATCH='for tmp (base base-name branch misc revision subdir) hook_com[$tmp]="${hook_com[$tmp]//\%/%%}"' |
|
# Unique string to avoid reapplying the patch if this code gets called twice |
|
typeset PATCH_ID=vcs_info-patch-9b9840f2-91e5-4471-af84-9e9a0dc68c1b |
|
# Only patch the VCS_INFO_formats function if not already patched |
|
if [[ "$functions[VCS_INFO_formats]" != *$PATCH_ID* ]]; then |
|
regexp-replace 'functions[VCS_INFO_formats]' \ |
|
"VCS_INFO_hook 'post-backend'" \ |
|
': ${PATCH_ID}; ${PATCH}; ${MATCH}' |
|
fi |
|
unset PATCH PATCH_ID
|
|
|