Squashed 'gitstatus/' changes from 1c74c8db..0d23fbd1

0d23fbd1 comments
9c19c9c4 fix a typo in install that prevents the locally built gitstatusd from being used
92fd143f doc cleanup

git-subtree-dir: gitstatus
git-subtree-split: 0d23fbd117ad6afe52fdbd96d08cf38f941be4d3

README.md

@@ -103,9 +103,9 @@ function my_set_prompt() {
 
   if gitstatus_query MY && [[ $VCS_STATUS_RESULT == ok-sync ]]; then
     RPROMPT=${${VCS_STATUS_LOCAL_BRANCH:-@${VCS_STATUS_COMMIT}}//\%/%%}  # escape %
-    (( $VCS_STATUS_NUM_STAGED    )) && RPROMPT+='+'
+    (( VCS_STATUS_NUM_STAGED    )) && RPROMPT+='+'
-    (( $VCS_STATUS_NUM_UNSTAGED  )) && RPROMPT+='!'
+    (( VCS_STATUS_NUM_UNSTAGED  )) && RPROMPT+='!'
-    (( $VCS_STATUS_NUM_UNTRACKED )) && RPROMPT+='?'
+    (( VCS_STATUS_NUM_UNTRACKED )) && RPROMPT+='?'
   fi
 
   setopt no_prompt_{bang,subst} prompt_percent  # enable/disable correct prompt expansions
@@ -204,9 +204,9 @@ function my_set_prompt() {
     else
       PS1+=" @${VCS_STATUS_COMMIT//\\/\\\\}"       # escape backslash
     fi
-    [[ "$VCS_STATUS_HAS_STAGED"    == 1 ]] && PS1+='+'
+    (( VCS_STATUS_HAS_STAGED"    )) && PS1+='+'
-    [[ "$VCS_STATUS_HAS_UNSTAGED"  == 1 ]] && PS1+='!'
+    (( VCS_STATUS_HAS_UNSTAGED"  )) && PS1+='!'
-    [[ "$VCS_STATUS_HAS_UNTRACKED" == 1 ]] && PS1+='?'
+    (( VCS_STATUS_HAS_UNTRACKED" )) && PS1+='?'
   fi
 
   PS1+='\n\$ '

gitstatus.prompt.sh

@@ -94,7 +94,7 @@ shopt -s promptvars
 #
 # Example:
 #
-#   user@host ~/projects/skynet master+!
+#   user@host ~/projects/skynet master ⇡42
 #   $ █
 PS1='\[\033[01;32m\]\u@\h\[\033[00m\] '           # green user@host
 PS1+='\[\033[01;34m\]\w\[\033[00m\]'              # blue current working directory

install

@@ -131,7 +131,7 @@ END
       >&2 echo "[gitstatus] error: GITSTATUS_DAEMON is not absolute path: $daemon"
       return 1
     fi
-    if [ -z "$daemon" && -e "$gitstatus_dir"/usrbin/gitstatusd ]; then
+    if [ -z "$daemon" -a -e "$gitstatus_dir"/usrbin/gitstatusd ]; then
       daemon="$gitstatus_dir"/usrbin/gitstatusd
     fi
     if [ -n "$daemon" ]; then

src/dir.cc

@@ -116,16 +116,18 @@ bool ListDir(int dir_fd, Arena& arena, std::vector<char*>& entries, bool precomp
       entries.clear();
       return false;
     }
-    if (n == 0) break;
     for (int pos = 0; pos < n;) {
       auto* ent = reinterpret_cast<linux_dirent64*>(buf + pos);
       if (!Dots(ent->d_name)) entries.push_back(ent->d_name);
       pos += ent->d_reclen;
-      // It's tempting to bail here if n + sizeof(linux_dirent64) + 512 <= n. After all, there
-      // was enough space for another entry but SYS_getdents64 didn't write it, so this must be
-      // the end of the directory listing, right? Unfortuatenly, no. SYS_getdents64 is finicky.
-      // It sometimes writes a partial list of entries even if the full list would fit.
     }
+    if (n == 0) break;
+    // The following optimization relies on SYS_getdents64 always returning as many
+    // entries as would fit. This is not guaranteed by the specification and I don't
+    // know if this is true in practice. The optimization has no measurable effect on
+    // gitstatus performance, so it's turned off.
+    //
+    //   if (n + sizeof(linux_dirent64) + 512 <= kBufSize) break;
   }
 
   if (case_sensitive) {