[Buildroot] [PATCH 0/4 v2] core/download: add support for git sub-modules (branch yem/git)

[Buildroot] [PATCH 0/4 v2] core/download: add support for git sub-modules (branch yem/git)

[Yann E. MORIN]

Hello All!

This little series adds support for packages coming from a git clone,
with git sub-modules.

The commit logs are pretty detailed, but roughly, it goes as thus;

  - we can't get sub-modules in a bare clone, so we no longer use bare
    clones, but use full clones (with a working copy);

  - git-archive does not support submodules, so we generate archives
    manually;

  - we check out the working copy to the correct cset, then we retrieve
    the submodules;

  - we expose a new package variable to request sub-modules.


Changes v1 -> v2:
  - properly accept -r in the download wrapper  (Aleksandar)
  - split the non-bare-git and manual-archive changes in two separate
    patches, as they are not semantically related
  - some of my usual typoes fixed...


Regards,
Yann E. MORIN.


The following changes since commit 2cd5abf7f9edd3c0a609e9626f12f71e2a6e4e7c:

  alsa-utils: bump to version 1.1.1 (2016-04-01 03:57:54 +0200)

are available in the git repository at:

  git://git.busybox.net/~ymorin/git/buildroot yem/git

for you to fetch changes up to 8373904cdf1fee9724d6834b56efaa706a92fc31:

  core/pkg-infra: download git submodules if the package wants them (2016-04-01 22:12:08 +0200)

----------------------------------------------------------------
Yann E. MORIN (4):
      support/download/git: do not use bare clones
      support/download/git: do not use git archive, handle it manually
      support/download/git: add support for submodules
      core/pkg-infra: download git submodules if the package wants them

 package/pkg-download.mk     |  1 +
 package/pkg-generic.mk      |  8 ++++++++
 support/download/dl-wrapper |  7 ++++---
 support/download/git        | 46 +++++++++++++++++++++++++++++++++++++++------
 4 files changed, 53 insertions(+), 9 deletions(-)

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH 1/4 v2] support/download/git: do not use bare clones

[Yann E. MORIN]

Currently, we are using bare clones, so as to minimise the disk usage,
most notably for largeish repositories such as the one for the Linux
kernel, which can go beyond the 1GiB barrier.

However, this precludes updating (and thus using) the submodules, if
any, of the repositories, as a working copy is required to use
submodules (becaue we need to know the list of submodules, where to find
them, where to clone them, what cset to checkout, and all those is
dependent upon the checked out cset of the father repository).

Switch to using /plain/ clones with a working copy.

This means that the extra refs used by some forges (like pull-requests
for Github, or changes for gerrit...) are no longer fetched as part of
the clone, because git does not offer to do a mirror clone when there is
a working copy.

Instead, we have to fetch those special refs by hand. Since there is no
easy solution to know whether the cset the user asked for is such a
special ref or not, we just try to always fetch the cset requested by
the user; if this fails, we assume that this is not a special ref (most
probably, it is a sha1) and we defer the check to the archive creation,
which would fail if the requested cset is missing anyway.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 support/download/git | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/support/download/git b/support/download/git
index 314b388..20b436e 100755
--- a/support/download/git
+++ b/support/download/git
@@ -41,7 +41,7 @@ _git() {
 git_done=0
 if [ -n "$(_git ls-remote "'${repo}'" "'${cset}'" 2>&1)" ]; then
     printf "Doing shallow clone\n"
-    if _git clone ${verbose} --depth 1 -b "'${cset}'" --bare "'${repo}'" "'${basename}'"; then
+    if _git clone ${verbose} --depth 1 -b "'${cset}'" "'${repo}'" "'${basename}'"; then
         git_done=1
     else
         printf "Shallow clone failed, falling back to doing a full clone\n"
@@ -49,10 +49,25 @@ if [ -n "$(_git ls-remote "'${repo}'" "'${cset}'" 2>&1)" ]; then
 fi
 if [ ${git_done} -eq 0 ]; then
     printf "Doing full clone\n"
-    _git clone ${verbose} --mirror "'${repo}'" "'${basename}'"
+    _git clone ${verbose} "'${repo}'" "'${basename}'"
+fi
+
+pushd "${basename}" >/dev/null
+
+# Try to get the special refs exposed by some forges (pull-requests for
+# github, changes for gerrit...). There is no easy way to know whether
+# the cset the user passed us is such a special ref or a tag or a sha1
+# or whatever else. We'll eventually fail at checking out that cset,
+# below, if there is an issue anyway. Since most of the cset we're gonna
+# have to clone are not such special refs, consign the output to oblivion
+# so as not to alarm unsuspecting users, but still trace it as a warning.
+if ! _git fetch "'${cset}:${cset}'" >/dev/null 2>&1; then
+    printf "Could not fetch special ref '%s'; assuming it is not special.\n" "${cset}"
 fi
 
-GIT_DIR="${basename}" \
 _git archive --prefix="'${basename}/'" -o "'${output}.tmp'" --format=tar "'${cset}'"
 
+# Not really required, but here for consistency
+popd >/dev/null
+
 gzip -n <"${output}.tmp" >"${output}"
-- 
1.9.1

[Buildroot] [PATCH 2/4 v2] support/download/git: do not use git archive, handle it manually

[Yann E. MORIN]

We currently use git-archive to generate the tarball. This is all handy
and dandy, but git-archive does not support submodules. In the follow-up
patch, we're going to handle submodules, so we would not be able to use
git-archive.

Instead, we manually generate the archive:
  - extract the tree to the requested cset,
  - get the date of the commit to store in the archive,
  - store only numeric owners,
  - store owner and group as 0 (zero, although any arbitrary value would
    have been fine, as long as it's a constant),
  - sort the files to store in the archive.

We also get rid of the .git directory, because there is no reason to
keep it in the context of Buildroot. Some people would love to keep it
so as to speed up later downloads when updating a package, but that is
not really doable. For example:
  - use current Buildroot
  - it would need foo-12345, so do a clone and keep the .git in the
    generated tarball
  - update Buildroot
  - it would need foo-98765
For that second clone, how could we know we would have to first extract
foo-12345 ? So, the .git in the archive is pretty much useless for
Buildroot.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 support/download/git | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/support/download/git b/support/download/git
index 20b436e..5672217 100755
--- a/support/download/git
+++ b/support/download/git
@@ -65,9 +65,17 @@ if ! _git fetch "'${cset}:${cset}'" >/dev/null 2>&1; then
     printf "Could not fetch special ref '%s'; assuming it is not special.\n" "${cset}"
 fi
 
-_git archive --prefix="'${basename}/'" -o "'${output}.tmp'" --format=tar "'${cset}'"
+# Checkout the required changeset.
+_git checkout -q "'${cset}'"
+
+# Get date of commit to generate a reproducible archive.
+date="$( _git show --no-patch --pretty=format:%cD )"
+
+# We do not need the .git dir to generate the tarball
+rm -rf .git
 
-# Not really required, but here for consistency
 popd >/dev/null
 
+tar cf - --numeric-owner --owner=0 --group=0 --mtime="${date}" \
+         -T <(find "${basename}" -not -type d |sort) >"${output}.tmp"
 gzip -n <"${output}.tmp" >"${output}"
-- 
1.9.1

[Buildroot] [PATCH 3/4 v2] support/download/git: add support for submodules

[Yann E. MORIN]

Some git repositories may be split into a master repository and
submodules. Up until now, we did not have support for submodules,
because we were using bare clones, in which it is not possible to
update the list of submodules.

Now that we are using plain clones with a working copy, we can retrieve
the submdoules.

Add an option to the git downlaod helper to kick the update of
submodules, so that they are only fetched for those packages that
require them. Also document the existing -q option at the same time.

Submodules have a .git file at their root, which contains the path to
the real .git directory of the master repository. Since we remove it,
there is no point in keeping those .git files either.

Note: this is currently unused, but will be enabled with the follow-up
patch , that adds the necessary parts in the pkg-generic and pkg-download
infrastructures.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 support/download/git | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/support/download/git b/support/download/git
index 5672217..99bd996 100755
--- a/support/download/git
+++ b/support/download/git
@@ -6,15 +6,20 @@ set -e
 # Download helper for git, to be called from the download wrapper script
 #
 # Call it as:
-#   .../git [-q] OUT_FILE REPO_URL CSET BASENAME
+#   .../git [-q] [-r] OUT_FILE REPO_URL CSET BASENAME
+#
+#   -q  Be quiet.
+#   -r  Clone and archive sub-modules.
 #
 # Environment:
 #   GIT      : the git command to call
 
 verbose=
-while getopts :q OPT; do
+recurse=0
+while getopts :qr OPT; do
     case "${OPT}" in
     q)  verbose=-q; exec >/dev/null;;
+    r)  recurse=1;;
     \?) printf "unknown option '%s'\n" "${OPTARG}" >&2; exit 1;;
     esac
 done
@@ -61,18 +66,24 @@ pushd "${basename}" >/dev/null
 # below, if there is an issue anyway. Since most of the cset we're gonna
 # have to clone are not such special refs, consign the output to oblivion
 # so as not to alarm unsuspecting users, but still trace it as a warning.
-if ! _git fetch "'${cset}:${cset}'" >/dev/null 2>&1; then
+if ! _git fetch origin "'${cset}'" >/dev/null 2>&1; then
     printf "Could not fetch special ref '%s'; assuming it is not special.\n" "${cset}"
 fi
 
-# Checkout the required changeset.
+# Checkout the required changeset, so that we can update the required
+# submodules.
 _git checkout -q "'${cset}'"
 
 # Get date of commit to generate a reproducible archive.
 date="$( _git show --no-patch --pretty=format:%cD )"
 
-# We do not need the .git dir to generate the tarball
-rm -rf .git
+# There might be submodules, so fetch them.
+if [ ${recurse} -eq 1 ]; then
+    _git submodule update --init --recursive
+fi
+
+# We do not need the .git dir and files to generate the tarball
+find . \( -name .git -o -name .gitmodules \) -exec rm -rf {} +
 
 popd >/dev/null
 
-- 
1.9.1

[Buildroot] [PATCH 4/4 v2] core/pkg-infra: download git submodules if the package wants them

[Yann E. MORIN]

Add a new package variable that packages can set to specify that they
need git submodules.

Only accept this option if the download method is git, as we can not get
submodules via an http download (via wget).

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Aleksandar Simeonov <aleksandar@barix.com>

---
Changes v1 -> v2:
  - properly accept the -r in the download wrapper  (Aleksandar)
---
 package/pkg-download.mk     | 1 +
 package/pkg-generic.mk      | 8 ++++++++
 support/download/dl-wrapper | 7 ++++---
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/package/pkg-download.mk b/package/pkg-download.mk
index 1332e66..2324a07 100644
--- a/package/pkg-download.mk
+++ b/package/pkg-download.mk
@@ -76,6 +76,7 @@ export BR_NO_CHECK_HASH_FOR =
 define DOWNLOAD_GIT
 	$(EXTRA_ENV) $(DL_WRAPPER) -b git \
 		-o $(DL_DIR)/$($(PKG)_SOURCE) \
+		$(if $($(PKG)_GIT_SUBMODULES),-r) \
 		$(QUIET) \
 		-- \
 		$($(PKG)_SITE) \
diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index 3904c09..fee7eb0 100644
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -453,6 +453,14 @@ ifndef $(2)_SITE_METHOD
  endif
 endif
 
+# Do not accept to download git submodule if not using the git method
+ifneq ($$($(2)_GIT_SUBMODULES),)
+ ifneq ($$($(2)_SITE_METHOD),git)
+  $$(error $(2) declares having git sub-modules, but does not use the \
+	   'git' method (uses '$$($(2)_SITE_METHOD)' instead))
+ endif
+endif
+
 ifeq ($$($(2)_SITE_METHOD),local)
 ifeq ($$($(2)_OVERRIDE_SRCDIR),)
 $(2)_OVERRIDE_SRCDIR = $$($(2)_SITE)
diff --git a/support/download/dl-wrapper b/support/download/dl-wrapper
index ef2d872..f944b71 100755
--- a/support/download/dl-wrapper
+++ b/support/download/dl-wrapper
@@ -21,15 +21,16 @@ set -e
 
 main() {
     local OPT OPTARG
-    local backend output hfile quiet
+    local backend output hfile recurse quiet
 
     # Parse our options; anything after '--' is for the backend
-    while getopts :hb:o:H:q OPT; do
+    while getopts :hb:o:H:rq OPT; do
         case "${OPT}" in
         h)  help; exit 0;;
         b)  backend="${OPTARG}";;
         o)  output="${OPTARG}";;
         H)  hfile="${OPTARG}";;
+        r)  recurse="-r";;
         q)  quiet="-q";;
         :)  error "option '%s' expects a mandatory argument\n" "${OPTARG}";;
         \?) error "unknown option '%s'\n" "${OPTARG}";;
@@ -82,7 +83,7 @@ main() {
     # If the backend fails, we can just remove the temporary directory to
     # remove all the cruft it may have left behind. Then we just exit in
     # error too.
-    if ! "${OLDPWD}/support/download/${backend}" ${quiet} "${tmpf}" "${@}"; then
+    if ! "${OLDPWD}/support/download/${backend}" ${quiet} ${recurse} "${tmpf}" "${@}"; then
         rm -rf "${tmpd}"
         exit 1
     fi
-- 
1.9.1

[Buildroot] [PATCH 0/4 v2] core/download: add support for git sub-modules (branch yem/git)

[Matthew Weber]

All,

On Fri, Apr 1, 2016 at 3:25 PM, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
> Hello All!
>
> This little series adds support for packages coming from a git clone,
> with git sub-modules.
>
> The commit logs are pretty detailed, but roughly, it goes as thus;
>
>   - we can't get sub-modules in a bare clone, so we no longer use bare
>     clones, but use full clones (with a working copy);
>
>   - git-archive does not support submodules, so we generate archives
>     manually;
>
>   - we check out the working copy to the correct cset, then we retrieve
>     the submodules;
>
>   - we expose a new package variable to request sub-modules.

I took the refpolicy package (pending merge) and reworked the patch to
use the git submodule feature.  I had it download/extract a specific
tag and then I observed the submodule checkout.  Originally the
refpolicy package used two packages to achieve this same
functionality.  I appreciate the patches!

Tested-by: Matt Weber <matt@thewebers.ws>
Reviewed-by: Matt Weber <matt@thewebers.ws>

[Buildroot] [PATCH 1/4 v2] support/download/git: do not use bare clones

[Matthew Weber]

Yann,

On Fri, Apr 1, 2016 at 3:25 PM, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
> Currently, we are using bare clones, so as to minimise the disk usage,
> most notably for largeish repositories such as the one for the Linux
> kernel, which can go beyond the 1GiB barrier.
>
> However, this precludes updating (and thus using) the submodules, if
> any, of the repositories, as a working copy is required to use
> submodules (becaue we need to know the list of submodules, where to find
> them, where to clone them, what cset to checkout, and all those is
> dependent upon the checked out cset of the father repository).
>
> Switch to using /plain/ clones with a working copy.
>
> This means that the extra refs used by some forges (like pull-requests
> for Github, or changes for gerrit...) are no longer fetched as part of
> the clone, because git does not offer to do a mirror clone when there is
> a working copy.
>
> Instead, we have to fetch those special refs by hand. Since there is no
> easy solution to know whether the cset the user asked for is such a
> special ref or not, we just try to always fetch the cset requested by
> the user; if this fails, we assume that this is not a special ref (most
> probably, it is a sha1) and we defer the check to the archive creation,
> which would fail if the requested cset is missing anyway.
>
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Tested-by: Matt Weber <matt@thewebers.ws>
Reviewed-by: Matt Weber <matt@thewebers.ws>

> ---
>  support/download/git | 21 ++++++++++++++++++---
>  1 file changed, 18 insertions(+), 3 deletions(-)
>
> diff --git a/support/download/git b/support/download/git
> index 314b388..20b436e 100755
> --- a/support/download/git
> +++ b/support/download/git
> @@ -41,7 +41,7 @@ _git() {
>  git_done=0
>  if [ -n "$(_git ls-remote "'${repo}'" "'${cset}'" 2>&1)" ]; then
>      printf "Doing shallow clone\n"
> -    if _git clone ${verbose} --depth 1 -b "'${cset}'" --bare "'${repo}'" "'${basename}'"; then
> +    if _git clone ${verbose} --depth 1 -b "'${cset}'" "'${repo}'" "'${basename}'"; then
>          git_done=1
>      else
>          printf "Shallow clone failed, falling back to doing a full clone\n"
> @@ -49,10 +49,25 @@ if [ -n "$(_git ls-remote "'${repo}'" "'${cset}'" 2>&1)" ]; then
>  fi
>  if [ ${git_done} -eq 0 ]; then
>      printf "Doing full clone\n"
> -    _git clone ${verbose} --mirror "'${repo}'" "'${basename}'"
> +    _git clone ${verbose} "'${repo}'" "'${basename}'"
> +fi
> +
> +pushd "${basename}" >/dev/null
> +
> +# Try to get the special refs exposed by some forges (pull-requests for
> +# github, changes for gerrit...). There is no easy way to know whether
> +# the cset the user passed us is such a special ref or a tag or a sha1
> +# or whatever else. We'll eventually fail at checking out that cset,
> +# below, if there is an issue anyway. Since most of the cset we're gonna
> +# have to clone are not such special refs, consign the output to oblivion
> +# so as not to alarm unsuspecting users, but still trace it as a warning.
> +if ! _git fetch "'${cset}:${cset}'" >/dev/null 2>&1; then
> +    printf "Could not fetch special ref '%s'; assuming it is not special.\n" "${cset}"
>  fi
>
> -GIT_DIR="${basename}" \
>  _git archive --prefix="'${basename}/'" -o "'${output}.tmp'" --format=tar "'${cset}'"
>
> +# Not really required, but here for consistency
> +popd >/dev/null
> +
>  gzip -n <"${output}.tmp" >"${output}"
> --
> 1.9.1
>
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot



-- 
Thanks,
Matt

[Buildroot] [PATCH 2/4 v2] support/download/git: do not use git archive, handle it manually

[Matthew Weber]

Yann,

On Fri, Apr 1, 2016 at 3:25 PM, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
> We currently use git-archive to generate the tarball. This is all handy
> and dandy, but git-archive does not support submodules. In the follow-up
> patch, we're going to handle submodules, so we would not be able to use
> git-archive.
>
> Instead, we manually generate the archive:
>   - extract the tree to the requested cset,
>   - get the date of the commit to store in the archive,
>   - store only numeric owners,
>   - store owner and group as 0 (zero, although any arbitrary value would
>     have been fine, as long as it's a constant),
>   - sort the files to store in the archive.
>
> We also get rid of the .git directory, because there is no reason to
> keep it in the context of Buildroot. Some people would love to keep it
> so as to speed up later downloads when updating a package, but that is
> not really doable. For example:
>   - use current Buildroot
>   - it would need foo-12345, so do a clone and keep the .git in the
>     generated tarball
>   - update Buildroot
>   - it would need foo-98765
> For that second clone, how could we know we would have to first extract
> foo-12345 ? So, the .git in the archive is pretty much useless for
> Buildroot.
>
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Tested-by: Matt Weber <matt@thewebers.ws>
Reviewed-by: Matt Weber <matt@thewebers.ws>

> ---
>  support/download/git | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/support/download/git b/support/download/git
> index 20b436e..5672217 100755
> --- a/support/download/git
> +++ b/support/download/git
> @@ -65,9 +65,17 @@ if ! _git fetch "'${cset}:${cset}'" >/dev/null 2>&1; then
>      printf "Could not fetch special ref '%s'; assuming it is not special.\n" "${cset}"
>  fi
>
> -_git archive --prefix="'${basename}/'" -o "'${output}.tmp'" --format=tar "'${cset}'"
> +# Checkout the required changeset.
> +_git checkout -q "'${cset}'"
> +
> +# Get date of commit to generate a reproducible archive.
> +date="$( _git show --no-patch --pretty=format:%cD )"
> +
> +# We do not need the .git dir to generate the tarball
> +rm -rf .git
>
> -# Not really required, but here for consistency
>  popd >/dev/null
>
> +tar cf - --numeric-owner --owner=0 --group=0 --mtime="${date}" \
> +         -T <(find "${basename}" -not -type d |sort) >"${output}.tmp"
>  gzip -n <"${output}.tmp" >"${output}"
> --
> 1.9.1
>
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot



-- 
Thanks,
Matt

[Buildroot] [PATCH 4/4 v2] core/pkg-infra: download git submodules if the package wants them

[Matthew Weber]

All,

On Fri, Apr 1, 2016 at 3:25 PM, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
> Add a new package variable that packages can set to specify that they
> need git submodules.
>
> Only accept this option if the download method is git, as we can not get
> submodules via an http download (via wget).
>
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Cc: Aleksandar Simeonov <aleksandar@barix.com>

Tested-by: Matt Weber <matt@thewebers.ws>
Reviewed-by: Matt Weber <matt@thewebers.ws>

>
> ---
> Changes v1 -> v2:
>   - properly accept the -r in the download wrapper  (Aleksandar)
> ---
>  package/pkg-download.mk     | 1 +
>  package/pkg-generic.mk      | 8 ++++++++
>  support/download/dl-wrapper | 7 ++++---
>  3 files changed, 13 insertions(+), 3 deletions(-)
>
> diff --git a/package/pkg-download.mk b/package/pkg-download.mk
> index 1332e66..2324a07 100644
> --- a/package/pkg-download.mk
> +++ b/package/pkg-download.mk
> @@ -76,6 +76,7 @@ export BR_NO_CHECK_HASH_FOR =
>  define DOWNLOAD_GIT
>         $(EXTRA_ENV) $(DL_WRAPPER) -b git \
>                 -o $(DL_DIR)/$($(PKG)_SOURCE) \
> +               $(if $($(PKG)_GIT_SUBMODULES),-r) \
>                 $(QUIET) \
>                 -- \
>                 $($(PKG)_SITE) \
> diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> index 3904c09..fee7eb0 100644
> --- a/package/pkg-generic.mk
> +++ b/package/pkg-generic.mk
> @@ -453,6 +453,14 @@ ifndef $(2)_SITE_METHOD
>   endif
>  endif
>
> +# Do not accept to download git submodule if not using the git method
> +ifneq ($$($(2)_GIT_SUBMODULES),)
> + ifneq ($$($(2)_SITE_METHOD),git)
> +  $$(error $(2) declares having git sub-modules, but does not use the \
> +          'git' method (uses '$$($(2)_SITE_METHOD)' instead))
> + endif
> +endif
> +
>  ifeq ($$($(2)_SITE_METHOD),local)
>  ifeq ($$($(2)_OVERRIDE_SRCDIR),)
>  $(2)_OVERRIDE_SRCDIR = $$($(2)_SITE)
> diff --git a/support/download/dl-wrapper b/support/download/dl-wrapper
> index ef2d872..f944b71 100755
> --- a/support/download/dl-wrapper
> +++ b/support/download/dl-wrapper
> @@ -21,15 +21,16 @@ set -e
>
>  main() {
>      local OPT OPTARG
> -    local backend output hfile quiet
> +    local backend output hfile recurse quiet
>
>      # Parse our options; anything after '--' is for the backend
> -    while getopts :hb:o:H:q OPT; do
> +    while getopts :hb:o:H:rq OPT; do
>          case "${OPT}" in
>          h)  help; exit 0;;
>          b)  backend="${OPTARG}";;
>          o)  output="${OPTARG}";;
>          H)  hfile="${OPTARG}";;
> +        r)  recurse="-r";;
>          q)  quiet="-q";;
>          :)  error "option '%s' expects a mandatory argument\n" "${OPTARG}";;
>          \?) error "unknown option '%s'\n" "${OPTARG}";;
> @@ -82,7 +83,7 @@ main() {
>      # If the backend fails, we can just remove the temporary directory to
>      # remove all the cruft it may have left behind. Then we just exit in
>      # error too.
> -    if ! "${OLDPWD}/support/download/${backend}" ${quiet} "${tmpf}" "${@}"; then
> +    if ! "${OLDPWD}/support/download/${backend}" ${quiet} ${recurse} "${tmpf}" "${@}"; then
>          rm -rf "${tmpd}"
>          exit 1
>      fi
> --
> 1.9.1
>
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot



-- 
Thanks,
Matt

[Buildroot] [PATCH 3/4 v2] support/download/git: add support for submodules

[Matthew Weber]

Yann,

On Fri, Apr 1, 2016 at 3:25 PM, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
> Some git repositories may be split into a master repository and
> submodules. Up until now, we did not have support for submodules,
> because we were using bare clones, in which it is not possible to
> update the list of submodules.
>
> Now that we are using plain clones with a working copy, we can retrieve
> the submdoules.
>
> Add an option to the git downlaod helper to kick the update of
> submodules, so that they are only fetched for those packages that
> require them. Also document the existing -q option at the same time.
>
> Submodules have a .git file at their root, which contains the path to
> the real .git directory of the master repository. Since we remove it,
> there is no point in keeping those .git files either.
>
> Note: this is currently unused, but will be enabled with the follow-up
> patch , that adds the necessary parts in the pkg-generic and pkg-download
> infrastructures.
>
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Tested-by: Matt Weber <matt@thewebers.ws>
Reviewed-by: Matt Weber <matt@thewebers.ws>

> ---
>  support/download/git | 23 +++++++++++++++++------
>  1 file changed, 17 insertions(+), 6 deletions(-)
>
> diff --git a/support/download/git b/support/download/git
> index 5672217..99bd996 100755
> --- a/support/download/git
> +++ b/support/download/git
> @@ -6,15 +6,20 @@ set -e
>  # Download helper for git, to be called from the download wrapper script
>  #
>  # Call it as:
> -#   .../git [-q] OUT_FILE REPO_URL CSET BASENAME
> +#   .../git [-q] [-r] OUT_FILE REPO_URL CSET BASENAME
> +#
> +#   -q  Be quiet.
> +#   -r  Clone and archive sub-modules.
>  #
>  # Environment:
>  #   GIT      : the git command to call
>
>  verbose=
> -while getopts :q OPT; do
> +recurse=0
> +while getopts :qr OPT; do
>      case "${OPT}" in
>      q)  verbose=-q; exec >/dev/null;;
> +    r)  recurse=1;;
>      \?) printf "unknown option '%s'\n" "${OPTARG}" >&2; exit 1;;
>      esac
>  done
> @@ -61,18 +66,24 @@ pushd "${basename}" >/dev/null
>  # below, if there is an issue anyway. Since most of the cset we're gonna
>  # have to clone are not such special refs, consign the output to oblivion
>  # so as not to alarm unsuspecting users, but still trace it as a warning.
> -if ! _git fetch "'${cset}:${cset}'" >/dev/null 2>&1; then
> +if ! _git fetch origin "'${cset}'" >/dev/null 2>&1; then
>      printf "Could not fetch special ref '%s'; assuming it is not special.\n" "${cset}"
>  fi
>
> -# Checkout the required changeset.
> +# Checkout the required changeset, so that we can update the required
> +# submodules.
>  _git checkout -q "'${cset}'"
>
>  # Get date of commit to generate a reproducible archive.
>  date="$( _git show --no-patch --pretty=format:%cD )"
>
> -# We do not need the .git dir to generate the tarball
> -rm -rf .git
> +# There might be submodules, so fetch them.
> +if [ ${recurse} -eq 1 ]; then
> +    _git submodule update --init --recursive
> +fi
> +
> +# We do not need the .git dir and files to generate the tarball
> +find . \( -name .git -o -name .gitmodules \) -exec rm -rf {} +
>
>  popd >/dev/null
>
> --
> 1.9.1
>
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot



-- 
Thanks,
Matt

[Buildroot] [PATCH 4/4 v2] core/pkg-infra: download git submodules if the package wants them

[Matthew Weber]

Alex,

On Mon, Apr 4, 2016 at 5:38 AM, Aleksandar Simeonov
<aleksandar@barix.com> wrote:
> Hi Yann, Mathew,
>
> Have you checked that this patch does not affect the download of packages
> not using GIT? For me it breaks the download of anything using WGET, for
> example dosfstools:
>

Yeah, but to be sure, I just did a clean and explicitly built
dosfstools along with a complete build.  Would you mind doing a
savedefconfig and pastebin your defconifg?  Also what hash did you add
the patchset on top of (I used 2cd5abf)?

Thanks,
Matt

[Buildroot] [PATCH 4/4 v2] core/pkg-infra: download git submodules if the package wants them

[Yann E. MORIN]

Aleksandar, All,

On 2016-04-04 12:38 +0200, Aleksandar Simeonov spake thusly:
> Have you checked that this patch does not affect the download of packages
> not using GIT? For me it breaks the download of anything using WGET, for
> example dosfstools:

Yes, I just retried right now, and I can at least download packages
using:
  - wget (gcc, binutils... and dosfstools)
  - mercurial (eigen)
  - git with no submodules (opkg)
  -git with sub-modules (a local package to test submodules)

and they all downloaded fine, especially dosfstools:

    >>> dosfstools 3.0.28 Downloading
    --2016-04-04 22:59:53--  https://github.com/dosfstools/dosfstools/releases/download/v3.0.28/dosfstools-3.0.28.tar.xz
    Connecting to 127.0.0.1:8080... connected.
    Proxy request sent, awaiting response... 302 Found
    Location: https://github-cloud.s3.amazonaws.com/releases/26462150/579f8e7e-fb7e-11e4-88ca-bc3c6ebe56b6.xz?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAISTNZFOVBIJMK3TQ%2F20160404%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20160404T205953Z&X-Amz-Expires=300&X-Amz-Signature=20455f9da857c4f99c4fc5dd74a12238c53958c728cf469bdc80cb0e7c69e272&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Ddosfstools-3.0.28.tar.xz&response-content-type=application%2Foctet-stream [following]
    --2016-04-04 22:59:53--  https://github-cloud.s3.amazonaws.com/releases/26462150/579f8e7e-fb7e-11e4-88ca-bc3c6ebe56b6.xz?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAISTNZFOVBIJMK3TQ%2F20160404%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20160404T205953Z&X-Amz-Expires=300&X-Amz-Signature=20455f9da857c4f99c4fc5dd74a12238c53958c728cf469bdc80cb0e7c69e272&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Ddosfstools-3.0.28.tar.xz&response-content-type=application%2Foctet-stream
    Connecting to 127.0.0.1:8080... connected.
    Proxy request sent, awaiting response... 200 OK
    Length: 82980 (81K) [application/octet-stream]
    Saving to: ?/home/ymorin/dev/buildroot/O/build/.dosfstools-3.0.28.tar.xz.wMTT4G/output?

    100%[================================================================>] 82,980       228KB/s   in 0.4s

    2016-04-04 22:59:55 (228 KB/s) - ?/home/ymorin/dev/buildroot/O/build/.dosfstools-3.0.28.tar.xz.wMTT4G/output? saved [82980/82980]

    dosfstools-3.0.28.tar.xz: OK (sha256: ee95913044ecf2719b63ea11212917649709a6e53209a72d622135aaa8517ee2)

> >>> dosfstools 3.0.28 Downloading
> BACKEND=wget

We have nothing in Buildroot that outputs this "BACKEND" string.

> --2016-04-04 12:28:06--  http://package/dosfstools//dosfstools.hash
> Resolving package (package)... failed: Name or service not known.
> wget: unable to resolve host address ?package?
> BACKEND=wget
> --2016-04-04 12:28:06--  http://package/dosfstools//dosfstools.hash
> Resolving package (package)... failed: Name or service not known.
> wget: unable to resolve host address ?package?
> make[1]: *** [/home/alex/workspace/BR2_merge/buildroot/output/build/dosfstools-3.0.28/.stamp_downloaded]
> Error 1
> make: *** [_all] Error 2
> 
> I will try to find out what is wrong, but I strongly suspect it is the
> ${recurse} option we add in the command.

${recurse} should only be set for a git download. And even if it was
passed to the wget backend, you'd have a failure in the backend, because
it does not know the -r option.

However, what you report is probably due to somthing else. Have you
applied on top of local changes? Can you reproduce the error without
this patchset?

Regards,
Yann E. MORIN.

> Cheers
> 
> Alex
> 
> 
> 
> On 4/2/16 7:01 AM, Matthew Weber wrote:
> >All,
> >
> >On Fri, Apr 1, 2016 at 3:25 PM, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
> >>Add a new package variable that packages can set to specify that they
> >>need git submodules.
> >>
> >>Only accept this option if the download method is git, as we can not get
> >>submodules via an http download (via wget).
> >>
> >>Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> >>Cc: Aleksandar Simeonov <aleksandar@barix.com>
> >Tested-by: Matt Weber <matt@thewebers.ws>
> >Reviewed-by: Matt Weber <matt@thewebers.ws>
> >
> >>---
> >>Changes v1 -> v2:
> >>   - properly accept the -r in the download wrapper  (Aleksandar)
> >>---
> >>  package/pkg-download.mk     | 1 +
> >>  package/pkg-generic.mk      | 8 ++++++++
> >>  support/download/dl-wrapper | 7 ++++---
> >>  3 files changed, 13 insertions(+), 3 deletions(-)
> >>
> >>diff --git a/package/pkg-download.mk b/package/pkg-download.mk
> >>index 1332e66..2324a07 100644
> >>--- a/package/pkg-download.mk
> >>+++ b/package/pkg-download.mk
> >>@@ -76,6 +76,7 @@ export BR_NO_CHECK_HASH_FOR =
> >>  define DOWNLOAD_GIT
> >>         $(EXTRA_ENV) $(DL_WRAPPER) -b git \
> >>                 -o $(DL_DIR)/$($(PKG)_SOURCE) \
> >>+               $(if $($(PKG)_GIT_SUBMODULES),-r) \
> >>                 $(QUIET) \
> >>                 -- \
> >>                 $($(PKG)_SITE) \
> >>diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> >>index 3904c09..fee7eb0 100644
> >>--- a/package/pkg-generic.mk
> >>+++ b/package/pkg-generic.mk
> >>@@ -453,6 +453,14 @@ ifndef $(2)_SITE_METHOD
> >>   endif
> >>  endif
> >>
> >>+# Do not accept to download git submodule if not using the git method
> >>+ifneq ($$($(2)_GIT_SUBMODULES),)
> >>+ ifneq ($$($(2)_SITE_METHOD),git)
> >>+  $$(error $(2) declares having git sub-modules, but does not use the \
> >>+          'git' method (uses '$$($(2)_SITE_METHOD)' instead))
> >>+ endif
> >>+endif
> >>+
> >>  ifeq ($$($(2)_SITE_METHOD),local)
> >>  ifeq ($$($(2)_OVERRIDE_SRCDIR),)
> >>  $(2)_OVERRIDE_SRCDIR = $$($(2)_SITE)
> >>diff --git a/support/download/dl-wrapper b/support/download/dl-wrapper
> >>index ef2d872..f944b71 100755
> >>--- a/support/download/dl-wrapper
> >>+++ b/support/download/dl-wrapper
> >>@@ -21,15 +21,16 @@ set -e
> >>
> >>  main() {
> >>      local OPT OPTARG
> >>-    local backend output hfile quiet
> >>+    local backend output hfile recurse quiet
> >>
> >>      # Parse our options; anything after '--' is for the backend
> >>-    while getopts :hb:o:H:q OPT; do
> >>+    while getopts :hb:o:H:rq OPT; do
> >>          case "${OPT}" in
> >>          h)  help; exit 0;;
> >>          b)  backend="${OPTARG}";;
> >>          o)  output="${OPTARG}";;
> >>          H)  hfile="${OPTARG}";;
> >>+        r)  recurse="-r";;
> >>          q)  quiet="-q";;
> >>          :)  error "option '%s' expects a mandatory argument\n" "${OPTARG}";;
> >>          \?) error "unknown option '%s'\n" "${OPTARG}";;
> >>@@ -82,7 +83,7 @@ main() {
> >>      # If the backend fails, we can just remove the temporary directory to
> >>      # remove all the cruft it may have left behind. Then we just exit in
> >>      # error too.
> >>-    if ! "${OLDPWD}/support/download/${backend}" ${quiet} "${tmpf}" "${@}"; then
> >>+    if ! "${OLDPWD}/support/download/${backend}" ${quiet} ${recurse} "${tmpf}" "${@}"; then
> >>          rm -rf "${tmpd}"
> >>          exit 1
> >>      fi
> >>--
> >>1.9.1
> >>
> >>_______________________________________________
> >>buildroot mailing list
> >>buildroot at busybox.net
> >>http://lists.busybox.net/mailman/listinfo/buildroot
> >
> >
> 

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH 4/4 v2] core/pkg-infra: download git submodules if the package wants them

[Aleksandar Simeonov]

Hi Yann,

On 4/4/16 11:04 PM, Yann E. MORIN wrote:
> Aleksandar, All,
>
> On 2016-04-04 12:38 +0200, Aleksandar Simeonov spake thusly:
>> Have you checked that this patch does not affect the download of packages
>> not using GIT? For me it breaks the download of anything using WGET, for
>> example dosfstools:
> Yes, I just retried right now, and I can at least download packages
> using:
>    - wget (gcc, binutils... and dosfstools)
>    - mercurial (eigen)
>    - git with no submodules (opkg)
>    -git with sub-modules (a local package to test submodules)
>
> and they all downloaded fine, especially dosfstools:
>
>   

It was failing on all packages-not only on dosfstools. But it was my 
fault, I was applying your v2 fixes not in the correct way, so it was 
failing on whatever package comes next to download. I have re-downloaded 
them from the link you have posted, and applied them on top of 
2cd5abf7f9edd3c0a609e9626f12f71e2a6e4e7c as Mathew has explained, and 
now all works fine.

>
>>>>> dosfstools 3.0.28 Downloading
>> BACKEND=wget
> We have nothing in Buildroot that outputs this "BACKEND" string.

This was a debug message I have added
> However, what you report is probably due to somthing else. Have you 
> applied on top of local changes? Can you reproduce the error without 
> this patchset? Regards, Yann E. MORIN. 

No, without the patchset works perfectly, With it-as well :) Sorry about 
the noise, I was not a member of the maillist, so my reply did go only 
to Mathew Weber. Now should be fine.

Great work, thank you all!

Cheers,

Alex

[Buildroot] [PATCH 4/4 v2] core/pkg-infra: download git submodules if the package wants them

[Nicolas Cavallari]

On 01/04/2016 22:25, Yann E. MORIN wrote:
> Add a new package variable that packages can set to specify that they
> need git submodules.
> 
> Only accept this option if the download method is git, as we can not get
> submodules via an http download (via wget).
> 
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Cc: Aleksandar Simeonov <aleksandar@barix.com>

Tested-By: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>

Tested on some local packages.  We already had ugly local patches to
support submodules.