[PATCH 1/2] Removed --debug flag from the hg vcs_info backend

[Frank Terbeck <ft@xxxxxxxxxxxxxxxxxxx>]

From: Seth House <seth@xxxxxxxxx>

The --debug hg flag produces inconsistent output between hg versions and
should not be relied upon. Removing this flag precludes obtaining the
full 40-character global revision id and so documentation and
workarounds should be relied upon instead.
---
 Doc/Zsh/contrib.yo                               | 7 +++++--
 Functions/VCS_Info/Backends/VCS_INFO_get_data_hg | 9 ++++++---
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/Doc/Zsh/contrib.yo b/Doc/Zsh/contrib.yo
index 24aafc3..8dbc095 100644
--- a/Doc/Zsh/contrib.yo
+++ b/Doc/Zsh/contrib.yo
@@ -768,7 +768,10 @@ item(tt(hgrevformat))(
 tt(hg) uses both a hash and a revision number to reference a specific
 changeset in a repository. With this style you can format the revision
 string (see tt(branchformat)) to include either or both. It's only
-useful when tt(get-revision) is true.
+useful when tt(get-revision) is true. Note, the full 40-character revision id
+is not available (except when using the tt(use-simple) option) because
+executing hg more than once per prompt is too slow; you may customize this
+behavior using hooks.
 )
 kindex(max-exports)
 item(tt(max-exports))(
@@ -993,7 +996,7 @@ In tt(hgrevformat) these replacements are done:
 
 startsitem()
 sitem(tt(%r))(The current local revision number.)
-sitem(tt(%h))(The current 40-character changeset ID hash identifier.)
+sitem(tt(%h))(The current global revision identifier.)
 endsitem()
 
 In tt(patch-format) and tt(nopatch-format) these replacements are done:
diff --git a/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg b/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
index 48e385c..cedaf56 100644
--- a/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
+++ b/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
@@ -37,12 +37,15 @@ VCS_INFO_adjust
 # Calling the 'hg' program is quite a bit too slow for prompts.
 # Disabled by default anyway, so no harm done.
 if zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" get-revision ; then
-    # Calling hexdump is (much) faster than hg but doesn't get the local rev
     if zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" use-simple \
             && ( VCS_INFO_check_com hexdump ) && [[ -r ${dirstatefile} ]] ; then
+        # Calling hexdump is (much) faster than hg but doesn't get the local rev
         r_csetid=$(hexdump -n 20 -e '1/1 "%02x"' ${dirstatefile})
     else
-        hgid_args=( --debug id -i -n -b )
+        # Settling for a short (but unique!) hash because getting the full
+        # 40-char hash in addition to all the other info we want isn't
+        # available in a single hg invocation
+        hgid_args=( id -i -n -b )
 
         # Looking for changes is a tad bit slower since the dirstate cache must
         # first be refreshed before being read
@@ -119,7 +122,7 @@ if zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" get-bookmarks \
         && [[ -r "${bmfile}" ]] && [[ -n "$r_csetid" ]] ; then
     while read -r i_bmhash i_bmname ; do
         # Compare hash in bookmarks file with changeset id
-        [[ $r_csetid == $i_bmhash ]] && hgbmarks+=( $i_bmname )
+        [[ $i_bmhash == $r_csetid* ]] && hgbmarks+=( $i_bmname )
     done < ${bmfile}
 
     if VCS_INFO_hook 'gen-hg-bookmark-string' "${hgbmarks[@]}"; then
-- 
1.7.12.1.382.gb0576a6