From 016e6ccbe03438454777e43dd73d67844296a3fd Mon Sep 17 00:00:00 2001
From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Date: Mon, 30 Oct 2006 20:09:29 +0100
Subject: allow cloning a repository "shallowly"

By specifying a depth, you can now clone a repository such that
all fetched ancestor-chains' length is at most "depth". For example,
if the upstream repository has only 2 branches ("A" and "B"), which
are linear, and you specify depth 3, you will get A, A~1, A~2, A~3,
B, B~1, B~2, and B~3. The ends are automatically made shallow
commits.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 git-clone.sh | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

(limited to 'git-clone.sh')

diff --git a/git-clone.sh b/git-clone.sh
index 9ed4135544..8c0a93ebd1 100755
--- a/git-clone.sh
+++ b/git-clone.sh
@@ -14,7 +14,7 @@ die() {
 }
 
 usage() {
-	die "Usage: $0 [--template=<template_directory>] [--use-immingled-remote] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [-n] <repo> [<dir>]"
+	die "Usage: $0 [--template=<template_directory>] [--use-immingled-remote] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [--depth <n>] [-n] <repo> [<dir>]"
 }
 
 get_repo_base() {
@@ -116,6 +116,7 @@ reference=
 origin=
 origin_override=
 use_separate_remote=t
+depth=
 while
 	case "$#,$1" in
 	0,*) break ;;
@@ -161,6 +162,10 @@ while
 	*,-u|*,--upload-pack)
 		shift
 		upload_pack="--exec=$1" ;;
+	1,--depth) usage;;
+	*,--depth)
+		shift
+		depth="--depth=$1";;
 	*,-*) usage ;;
 	*) break ;;
 	esac
@@ -265,6 +270,10 @@ yes,yes)
 *)
 	case "$repo" in
 	rsync://*)
+		case "$depth" in
+		"") ;;
+		*) die "shallow over rsync not supported" ;;
+		esac
 		rsync $quiet -av --ignore-existing  \
 			--exclude info "$repo/objects/" "$GIT_DIR/objects/" ||
 		exit
@@ -293,6 +302,10 @@ yes,yes)
 		git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1
 		;;
 	https://*|http://*|ftp://*)
+		case "$depth" in
+		"") ;;
+		*) die "shallow over http or ftp not supported" ;;
+		esac
 		if test -z "@@NO_CURL@@"
 		then
 			clone_dumb_http "$repo" "$D"
@@ -302,8 +315,8 @@ yes,yes)
 		;;
 	*)
 		case "$upload_pack" in
-		'') git-fetch-pack --all -k $quiet "$repo" ;;
-		*) git-fetch-pack --all -k $quiet "$upload_pack" "$repo" ;;
+		'') git-fetch-pack --all -k $quiet $depth "$repo" ;;
+		*) git-fetch-pack --all -k $quiet "$upload_pack" $depth "$repo" ;;
 		esac >"$GIT_DIR/CLONE_HEAD" ||
 			die "fetch-pack from '$repo' failed."
 		;;
-- 
cgit v1.2.1