Add more tests for git hash-object

[git-core/git.git] / git-bisect.sh

diff --git a/git-bisect.sh b/git-bisect.sh
index 2c32d0b..d8d9bfd 100755 (executable)
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -1,7 +1,9 @@
 #!/bin/sh
 
-USAGE='[start|bad|good|skip|next|reset|visualize|replay|log|run]'
-LONG_USAGE='git bisect start [<bad> [<good>...]] [--] [<pathspec>...]
+USAGE='[help|start|bad|good|skip|next|reset|visualize|replay|log|run]'
+LONG_USAGE='git bisect help
+        print this long help message.
+git bisect start [<bad> [<good>...]] [--] [<pathspec>...]
         reset bisect state and start bisection.
 git bisect bad [<rev>]
         mark <rev> a known-bad revision.
@@ -20,7 +22,9 @@ git bisect replay <logfile>
 git bisect log
         show bisect log.
 git bisect run <cmd>...
-        use <cmd>... to automatically bisect.'
+        use <cmd>... to automatically bisect.
+
+Please use "git help bisect" to get the full man page.'
 
 OPTIONS_SPEC=
 . git-sh-setup
@@ -62,9 +66,10 @@ bisect_start() {
        # Verify HEAD. If we were bisecting before this, reset to the
        # top-of-line master first!
        #
-       head=$(GIT_DIR="$GIT_DIR" git symbolic-ref HEAD) ||
+       head=$(GIT_DIR="$GIT_DIR" git symbolic-ref -q HEAD) ||
        head=$(GIT_DIR="$GIT_DIR" git rev-parse --verify HEAD) ||
        die "Bad HEAD - I need a HEAD"
+       start_head=''
        case "$head" in
        refs/heads/bisect)
                if [ -s "$GIT_DIR/BISECT_START" ]; then
@@ -78,7 +83,7 @@ bisect_start() {
                # This error message should only be triggered by cogito usage,
                # and cogito users should understand it relates to cg-seek.
                [ -s "$GIT_DIR/head-name" ] && die "won't bisect on seeked tree"
-               echo "${head#refs/heads/}" >"$GIT_DIR/BISECT_START"
+               start_head="${head#refs/heads/}"
                ;;
        *)
                die "Bad HEAD - strange symbolic ref"
@@ -99,6 +104,7 @@ bisect_start() {
        done
        orig_args=$(sq "$@")
        bad_seen=0
+       eval=''
        while [ $# -gt 0 ]; do
            arg="$1"
            case "$arg" in
@@ -116,13 +122,15 @@ bisect_start() {
                0) state='bad' ; bad_seen=1 ;;
                *) state='good' ;;
                esac
-               bisect_write "$state" "$rev" 'nolog'
+               eval="$eval bisect_write '$state' '$rev' 'nolog'; "
                shift
                ;;
            esac
        done
 
        sq "$@" >"$GIT_DIR/BISECT_NAMES"
+       test -n "$start_head" && echo "$start_head" >"$GIT_DIR/BISECT_START"
+       eval "$eval"
        echo "git-bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG"
        bisect_auto_next
 }
@@ -151,20 +159,18 @@ bisect_state() {
                rev=$(git rev-parse --verify HEAD) ||
                        die "Bad rev input: HEAD"
                bisect_write "$state" "$rev" ;;
-       2,bad)
-               rev=$(git rev-parse --verify "$2^{commit}") ||
-                       die "Bad rev input: $2"
-               bisect_write "$state" "$rev" ;;
-       *,good|*,skip)
+       2,bad|*,good|*,skip)
                shift
-               revs=$(git rev-parse --revs-only --no-flags "$@") &&
-                       test '' != "$revs" || die "Bad rev input: $@"
-               for rev in $revs
+               eval=''
+               for rev in "$@"
                do
-                       rev=$(git rev-parse --verify "$rev^{commit}") ||
-                               die "Bad rev commit: $rev^{commit}"
-                       bisect_write "$state" "$rev"
-               done ;;
+                       sha=$(git rev-parse --verify "$rev^{commit}") ||
+                               die "Bad rev input: $rev"
+                       eval="$eval bisect_write '$state' '$sha'; "
+               done
+               eval "$eval" ;;
+       *,bad)
+               die "'git bisect bad' can take only one argument." ;;
        *)
                usage ;;
        esac
@@ -293,14 +299,14 @@ bisect_next() {
        bisect_next_check good
 
        skip=$(git for-each-ref --format='%(objectname)' \
-               "refs/bisect/skip-*" | tr '[\012]' ' ') || exit
+               "refs/bisect/skip-*" | tr '\012' ' ') || exit
 
        BISECT_OPT=''
        test -n "$skip" && BISECT_OPT='--bisect-all'
 
        bad=$(git rev-parse --verify refs/bisect/bad) &&
        good=$(git for-each-ref --format='^%(objectname)' \
-               "refs/bisect/good-*" | tr '[\012]' ' ') &&
+               "refs/bisect/good-*" | tr '\012' ' ') &&
        eval="git rev-list --bisect-vars $BISECT_OPT $good $bad --" &&
        eval="$eval $(cat "$GIT_DIR/BISECT_NAMES")" &&
        eval=$(filter_skipped "$eval" "$skip") &&
@@ -465,6 +471,8 @@ case "$#" in
     cmd="$1"
     shift
     case "$cmd" in
+    help)
+        git bisect -h ;;
     start)
         bisect_start "$@" ;;
     bad|good|skip)