mirror of
https://github.com/git/git.git
synced 2024-11-25 02:44:48 +08:00
ace33bf991
Currently, when an invalid revision is specified, the error message is:
fatal: Needed a single revision
This is misleading because, you might think there is something wrong
with the command line as a whole.
Now the user gets a more meaningful error message, showing the invalid
revision.
Signed-off-by: Dirk Wallenstein <halsmit@t-online.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
163 lines
3.7 KiB
Bash
Executable File
163 lines
3.7 KiB
Bash
Executable File
#!/bin/sh
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# Copyright 2005, Ryan Anderson <ryan@michonline.com>
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#
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# This file is licensed under the GPL v2, or a later version
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# at the discretion of Linus Torvalds.
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USAGE='<start> <url> [<end>]'
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LONG_USAGE='Summarizes the changes between two commits to the standard output,
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and includes the given URL in the generated summary.'
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SUBDIRECTORY_OK='Yes'
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OPTIONS_KEEPDASHDASH=
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OPTIONS_SPEC='git request-pull [options] start url [end]
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--
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p show patch text as well
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'
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. git-sh-setup
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GIT_PAGER=
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export GIT_PAGER
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patch=
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while case "$#" in 0) break ;; esac
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do
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case "$1" in
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-p)
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patch=-p ;;
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--)
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shift; break ;;
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-*)
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usage ;;
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*)
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break ;;
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esac
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shift
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done
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base=$1 url=$2 head=${3-HEAD} status=0 branch_name=
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headref=$(git symbolic-ref -q "$head")
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if git show-ref -q --verify "$headref"
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then
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branch_name=${headref#refs/heads/}
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if test "z$branch_name" = "z$headref" ||
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! git config "branch.$branch_name.description" >/dev/null
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then
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branch_name=
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fi
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fi
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tag_name=$(git describe --exact "$head^0" 2>/dev/null)
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test -n "$base" && test -n "$url" || usage
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baserev=$(git rev-parse --verify --quiet "$base"^0)
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if test -z "$baserev"
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then
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die "fatal: Not a valid revision: $base"
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fi
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headrev=$(git rev-parse --verify --quiet "$head"^0)
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if test -z "$headrev"
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then
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die "fatal: Not a valid revision: $head"
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fi
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merge_base=$(git merge-base $baserev $headrev) ||
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die "fatal: No commits in common between $base and $head"
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# $head is the token given from the command line, and $tag_name, if
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# exists, is the tag we are going to show the commit information for.
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# If that tag exists at the remote and it points at the commit, use it.
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# Otherwise, if a branch with the same name as $head exists at the remote
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# and their values match, use that instead.
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#
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# Otherwise find a random ref that matches $headrev.
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find_matching_ref='
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sub abbr {
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my $ref = shift;
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if ($ref =~ s|^refs/heads/|| || $ref =~ s|^refs/tags/|tags/|) {
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return $ref;
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} else {
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return $ref;
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}
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}
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my ($tagged, $branch, $found);
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while (<STDIN>) {
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my ($sha1, $ref, $deref) = /^(\S+)\s+(\S+?)(\^\{\})?$/;
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next unless ($sha1 eq $ARGV[1]);
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$found = abbr($ref);
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if ($deref && $ref eq "tags/$ARGV[2]") {
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$tagged = $found;
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last;
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}
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if ($ref =~ m|/\Q$ARGV[0]\E$|) {
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$exact = $found;
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}
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}
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if ($tagged) {
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print "$tagged\n";
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} elsif ($exact) {
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print "$exact\n";
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} elsif ($found) {
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print "$found\n";
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}
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'
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ref=$(git ls-remote "$url" | perl -e "$find_matching_ref" "$head" "$headrev" "$tag_name")
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url=$(git ls-remote --get-url "$url")
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git show -s --format='The following changes since commit %H:
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%s (%ci)
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are available in the git repository at:
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' $merge_base &&
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echo " $url${ref+ $ref}" &&
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git show -s --format='
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for you to fetch changes up to %H:
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%s (%ci)
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----------------------------------------------------------------' $headrev &&
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if test -n "$branch_name"
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then
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echo "(from the branch description for $branch_name local branch)"
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echo
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git config "branch.$branch_name.description"
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fi &&
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if test -n "$tag_name"
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then
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if test -z "$ref" || test "$ref" != "tags/$tag_name"
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then
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echo >&2 "warn: You locally have $tag_name but it does not (yet)"
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echo >&2 "warn: appear to be at $url"
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echo >&2 "warn: Do you want to push it there, perhaps?"
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fi
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git cat-file tag "$tag_name" |
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sed -n -e '1,/^$/d' -e '/^-----BEGIN PGP /q' -e p
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echo
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fi &&
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if test -n "$branch_name" || test -n "$tag_name"
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then
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echo "----------------------------------------------------------------"
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fi &&
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git shortlog ^$baserev $headrev &&
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git diff -M --stat --summary $patch $merge_base..$headrev || status=1
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if test -z "$ref"
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then
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echo "warn: No branch of $url is at:" >&2
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git show -s --format='warn: %h: %s' $headrev >&2
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echo "warn: Are you sure you pushed '$head' there?" >&2
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status=1
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fi
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exit $status
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