[arch-projects] [ABS] [PATCH v4 7/7] vcs prototypes: more efficient temp build directories

[Linus Arver]

The bzr, darcs, git, and hg version control systems use a single
internal folder at the root to store all VCS-related data (commits,
history, etc.). This folder can get quite large (hundreds of MiB) for
big projects and continues to grow as the project lives on.

We exclude this folder when creating a temporary build directory to save
time and space. Since commit 0e79802c0ac8453376d8c0f99629f5a3b499f571 in
pacman includes "shopt -s extglob" in pacman/scripts/makepkg.sh.in, we
can use the simple "!(foo)" syntax. Thanks to Dave Reisner for pointing
this out. [1]

CVS and SVN pollute the source repo with "CVS" and ".svn" directories
recursively for every single directory, so we use rsync. Most, if not
all, Arch systems should have rsync installed, so this should be safe.

[1]: http://mailman.archlinux.org/pipermail/arch-projects/2011-November/002033.html

Signed-off-by: Linus Arver <linusarver at gmail.com>
---
 prototypes/PKGBUILD-bzr.proto   |    3 ++-
 prototypes/PKGBUILD-cvs.proto   |    2 +-
 prototypes/PKGBUILD-darcs.proto |    3 ++-
 prototypes/PKGBUILD-hg.proto    |    3 ++-
 prototypes/PKGBUILD-svn.proto   |    2 +-
 5 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/prototypes/PKGBUILD-bzr.proto b/prototypes/PKGBUILD-bzr.proto
index 287486d..745414c 100644
--- a/prototypes/PKGBUILD-bzr.proto
+++ b/prototypes/PKGBUILD-bzr.proto
@@ -47,7 +47,8 @@ build() {
   msg "Starting build..."
 
   rm -rf "$_bzrmod-build"
-  cp -r "$_bzrmod" "$_bzrmod-build"
+  mkdir "$_bzrmod-build"
+  cp -a "$_bzrmod"/!(.bzr) "$_bzrmod-build"
   cd "$_bzrmod-build"
 
   #
diff --git a/prototypes/PKGBUILD-cvs.proto b/prototypes/PKGBUILD-cvs.proto
index 0ddd91d..4cf87cc 100644
--- a/prototypes/PKGBUILD-cvs.proto
+++ b/prototypes/PKGBUILD-cvs.proto
@@ -47,7 +47,7 @@ build() {
   msg "Starting build..."
 
   rm -rf "$_cvsmod-build"
-  cp -r "$_cvsmod" "$_cvsmod-build"
+  rsync -a --exclude=CVS "$_cvsmod"/* "$_cvsmod-build"
   cd "$_cvsmod-build"
 
   #
diff --git a/prototypes/PKGBUILD-darcs.proto b/prototypes/PKGBUILD-darcs.proto
index 1103588..4ab19f5 100644
--- a/prototypes/PKGBUILD-darcs.proto
+++ b/prototypes/PKGBUILD-darcs.proto
@@ -47,7 +47,8 @@ build() {
   msg "Starting build..."
 
   rm -rf "$_darcsmod-build"
-  cp -r "$_darcsmod" "$_darcsmod-build"
+  mkdir "$_darcsmod-build"
+  cp -a "$_darcsmod"/!(_darcs) "$_darcsmod-build"
   cd "$_darcsmod-build"
 
   #
diff --git a/prototypes/PKGBUILD-hg.proto b/prototypes/PKGBUILD-hg.proto
index e2ddca1..9168deb 100644
--- a/prototypes/PKGBUILD-hg.proto
+++ b/prototypes/PKGBUILD-hg.proto
@@ -47,7 +47,8 @@ build() {
   msg "Starting build..."
 
   rm -rf "$_hgrepo-build"
-  cp -r "$_hgrepo" "$_hgrepo-build"
+  mkdir "$_hgrepo-build"
+  cp -a "$_hgrepo"/!(.hg) "$_hgrepo-build"
   cd "$_hgrepo-build"
 
   #
diff --git a/prototypes/PKGBUILD-svn.proto b/prototypes/PKGBUILD-svn.proto
index 42f7f60..2f6438a 100644
--- a/prototypes/PKGBUILD-svn.proto
+++ b/prototypes/PKGBUILD-svn.proto
@@ -47,7 +47,7 @@ build() {
   msg "Starting build..."
 
   rm -rf "$_svnmod-build"
-  cp -r "$_svnmod" "$_svnmod-build"
+  rsync -a --exclude=.svn "$_svnmod"/* "$_svnmod-build"
   cd "$_svnmod-build"
 
   #
-- 
1.7.7.3