| 1 |
Support limiting the git checkout to specific subdirectories of the git |
| 2 |
tree, using 'git checkout ... -- <paths>...' The main use case for this |
| 3 |
is doing partial checkouts of very large repositories where only a small |
| 4 |
subset of files is necessary. Doing partial checkouts can save both |
| 5 |
time and disk space which can be important in large intertwined |
| 6 |
projects such as LLVM+Clang. |
| 7 |
--- |
| 8 |
eclass/git-r3.eclass | 20 +++++++++++++++++--- |
| 9 |
1 file changed, 17 insertions(+), 3 deletions(-) |
| 10 |
|
| 11 |
diff --git a/eclass/git-r3.eclass b/eclass/git-r3.eclass |
| 12 |
index c9d2731a64fe..caf4e8d003e0 100644 |
| 13 |
--- a/eclass/git-r3.eclass |
| 14 |
+++ b/eclass/git-r3.eclass |
| 15 |
@@ -803,7 +803,7 @@ git-r3_fetch() { |
| 16 |
} |
| 17 |
|
| 18 |
# @FUNCTION: git-r3_checkout |
| 19 |
-# @USAGE: [<repo-uri> [<checkout-path> [<local-id>]]] |
| 20 |
+# @USAGE: [<repo-uri> [<checkout-path> [<local-id> [<checkout-paths>...]]]] |
| 21 |
# @DESCRIPTION: |
| 22 |
# Check the previously fetched tree to the working copy. |
| 23 |
# |
| 24 |
@@ -819,6 +819,12 @@ git-r3_fetch() { |
| 25 |
# <local-id> needs to specify the local identifier that was used |
| 26 |
# for respective git-r3_fetch. |
| 27 |
# |
| 28 |
+# If <checkout-paths> are specified, then the specified paths are passed |
| 29 |
+# to 'git checkout' to effect a partial checkout. Please note that such |
| 30 |
+# checkout will not cause the repository to switch branches, |
| 31 |
+# and submodules will be skipped at the moment. The submodules matching |
| 32 |
+# those paths might be checked out in a future version of the eclass. |
| 33 |
+# |
| 34 |
# The checkout operation will write to the working copy, and export |
| 35 |
# the repository state into the environment. If the repository contains |
| 36 |
# submodules, they will be checked out recursively. |
| 37 |
@@ -836,6 +842,7 @@ git-r3_checkout() { |
| 38 |
|
| 39 |
local out_dir=${2:-${EGIT_CHECKOUT_DIR:-${WORKDIR}/${P}}} |
| 40 |
local local_id=${3:-${CATEGORY}/${PN}/${SLOT%/*}} |
| 41 |
+ local checkout_paths=( "${@:4}" ) |
| 42 |
|
| 43 |
local -x GIT_DIR |
| 44 |
_git-r3_set_gitdir "${repos[0]}" |
| 45 |
@@ -883,6 +890,9 @@ git-r3_checkout() { |
| 46 |
else |
| 47 |
set -- "${@}" "${new_commit_id}" |
| 48 |
fi |
| 49 |
+ if [[ ${checkout_paths[@]} ]]; then |
| 50 |
+ set -- "${@}" -- "${checkout_paths[@]}" |
| 51 |
+ fi |
| 52 |
echo "${@}" >&2 |
| 53 |
"${@}" || die "git checkout ${remote_ref:-${new_commit_id}} failed" |
| 54 |
} |
| 55 |
@@ -905,8 +915,12 @@ git-r3_checkout() { |
| 56 |
echo " updating from commit: ${old_commit_id}" |
| 57 |
echo " to commit: ${new_commit_id}" |
| 58 |
|
| 59 |
- git --no-pager diff --stat \ |
| 60 |
+ set -- git --no-pager diff --stat \ |
| 61 |
${old_commit_id}..${new_commit_id} |
| 62 |
+ if [[ ${checkout_paths[@]} ]]; then |
| 63 |
+ set -- "${@}" -- "${checkout_paths[@]}" |
| 64 |
+ fi |
| 65 |
+ "${@}" |
| 66 |
else |
| 67 |
echo " at the commit: ${new_commit_id}" |
| 68 |
fi |
| 69 |
@@ -914,7 +928,7 @@ git-r3_checkout() { |
| 70 |
git update-ref --no-deref refs/git-r3/"${local_id}"/{__old__,__main__} || die |
| 71 |
|
| 72 |
# recursively checkout submodules |
| 73 |
- if [[ -f ${out_dir}/.gitmodules ]]; then |
| 74 |
+ if [[ -f ${out_dir}/.gitmodules && ! ${checkout_paths} ]]; then |
| 75 |
local submodules |
| 76 |
_git-r3_set_submodules \ |
| 77 |
"$(<"${out_dir}"/.gitmodules)" |
| 78 |
-- |
| 79 |
2.15.0 |
Archives