git-prompt.sh re-implemented with gawk. >100x faster under git-win (requires git version >= 2.11.0)

git-prompt-color.sh

#!/usr/bin/env bash

git rev-parse 2>/dev/null && \
  git status --porcelain=v2 -b --ignored | gawk '

/^# branch\.head / { head = $0; sub(/# branch\.head /, "", head); next; }
/^# branch\.ab /   { match($0, /^# branch\.ab \+([0-9]+) -([0-9]+)$/, ab); ahead = ab[1]; behind = ab[2]; next; }
/^! /              { next; } /* ignored */
/^[12] [^.]. /     { staged++;    next; }
/^[12] \.[MD] /    { changed++;   next; }
/^\? /             { untracked++; next; }
/^[12] U. /        { conflicts++; next; }
/^[12] .U /        { conflicts++; next; }
/^[12] DD /        { conflicts++; next; }
/^[12] AA /        { conflicts++; next; }

END {
  printf("(");

   {
    printf("\033[0;32m%s\033[0m", head);
    if (untracked + conflicts + changed + staged != 0) {
      printf(":");
      if (staged   ) printf("\033[0;32m+%d\033[0m",    staged   );
      if (changed  ) printf("\033[0;31m*%d\033[0m",    changed  );
      if (untracked) printf("\033[0;35m%%%d\033[0m",   untracked);
      if (conflicts) printf("\033[1;41;30m!%d\033[0m", conflicts);
    }
    if (behind + ahead != 0) {
      printf("\033[1;40;31m↓%d\033[0m", behind   );
      printf("\033[1;40;36m↑%d\033[0m", ahead    );
    } else {
      printf("\033[0m=");
    }
  }

  printf("\033[0m)");
}
'

# vim: set ft=awk:

git-prompt-txt.sh

#!/usr/bin/env bash

git rev-parse 2>/dev/null && \
  git status --porcelain=v2 -b --ignored | gawk '

/^# branch\.head / { head = $0; sub(/# branch\.head /, "", head); next; }
/^# branch\.ab /   { match($0, /^# branch\.ab \+([0-9]+) -([0-9]+)$/, ab); ahead = ab[1]; behind = ab[2]; next; }
/* /^! /             { next; } ignored */
/^[12] [^.]. /     { staged++;    next; }
/^[12] \.[MD] /    { changed++;   next; }
/^\? /             { untracked++; next; }
/^[12] U. /        { conflicts++; next; }
/^[12] .U /        { conflicts++; next; }
/^[12] DD /        { conflicts++; next; }
/^[12] AA /        { conflicts++; next; }

END {
  printf("(");

   {
    printf(head);
    if (untracked + conflicts + changed + staged != 0) {
      printf(":");
      if (staged   ) printf("+%d",    staged   );
      if (changed  ) printf("*%d",    changed  );
      if (untracked) printf("%%%d",   untracked);
      if (conflicts) printf("!%d",    conflicts);
    }
    if (behind + ahead != 0) {
      printf("'\''%d", ahead    );
      printf(",%d", behind   );
    } else {
      printf("=");
    }
  }

  printf(")");
}
'

# vim: set ft=awk: