package/pkg-download.mk

   1 ################################################################################
   2 #
   3 # This file contains the download helpers for the various package
   4 # infrastructures. It is used to handle downloads from HTTP servers,
   5 # FTP servers, Git repositories, Subversion repositories, Mercurial
   6 # repositories, Bazaar repositories, and SCP servers.
   7 #
   8 ################################################################################
   9
  10 # Download method commands
  11 WGET := $(call qstrip,$(BR2_WGET)) $(QUIET)
  12 SVN := $(call qstrip,$(BR2_SVN))
  13 CVS := $(call qstrip,$(BR2_CVS))
  14 BZR := $(call qstrip,$(BR2_BZR))
  15 GIT := $(call qstrip,$(BR2_GIT))
  16 HG := $(call qstrip,$(BR2_HG)) $(QUIET)
  17 SCP := $(call qstrip,$(BR2_SCP)) $(QUIET)
  18 SSH := $(call qstrip,$(BR2_SSH)) $(QUIET)
  19 LOCALFILES := $(call qstrip,$(BR2_LOCALFILES))
  20
  21 # Default spider mode is 'DOWNLOAD'. Other possible values are 'SOURCE_CHECK'
  22 # used by the _source-check target and 'SHOW_EXTERNAL_DEPS', used by the
  23 # external-deps target.
  24 DL_MODE=DOWNLOAD
  25
  26 # Override BR2_DL_DIR if shell variable defined
  27 ifneq ($(BUILDROOT_DL_DIR),)
  28 DL_DIR := $(BUILDROOT_DL_DIR)
  29 else
  30 DL_DIR := $(call qstrip,$(BR2_DL_DIR))
  31 endif
  32
  33 ifeq ($(DL_DIR),)
  34 DL_DIR := $(TOPDIR)/dl
  35 endif
  36
  37 # ensure it exists and a absolute path
  38 DL_DIR := $(shell mkdir -p $(DL_DIR) && cd $(DL_DIR) >/dev/null && pwd)
  39
  40 #
  41 # URI scheme helper functions
  42 # Example URIs:
  43 # * http://www.example.com/dir/file
  44 # * scp://www.example.com:dir/file (with domainseparator :)
  45 #
  46 # geturischeme: http
  47 geturischeme=$(firstword $(subst ://, ,$(call qstrip,$(1))))
  48 # stripurischeme: www.example.com/dir/file
  49 stripurischeme=$(lastword $(subst ://, ,$(call qstrip,$(1))))
  50 # domain: www.example.com
  51 domain=$(firstword $(subst $(call domainseparator,$(2)), ,$(call stripurischeme,$(1))))
  52 # notdomain: dir/file
  53 notdomain=$(patsubst $(call domain,$(1),$(2))$(call domainseparator,$(2))%,%,$(call stripurischeme,$(1)))
  54 #
  55 # default domainseparator is /, specify alternative value as first argument
  56 domainseparator=$(if $(1),$(1),/)
  57
  58 ################################################################################
  59 # The DOWNLOAD_* helpers are in charge of getting a working copy
  60 # of the source repository for their corresponding SCM,
  61 # checking out the requested version / commit / tag, and create an
  62 # archive out of it. DOWNLOAD_SCP uses scp to obtain a remote file with
  63 # ssh authentication. DOWNLOAD_WGET is the normal wget-based download
  64 # mechanism.
  65 #
  66 # The SOURCE_CHECK_* helpers are in charge of simply checking that the source
  67 # is available for download. This can be used to make sure one will be able
  68 # to get all the sources needed for one's build configuration.
  69 #
  70 # The SHOW_EXTERNAL_DEPS_* helpers simply output to the console the names
  71 # of the files that will be downloaded, or path and revision of the
  72 # source repositories, producing a list of all the "external dependencies"
  73 # of a given build configuration.
  74 ################################################################################
  75
  76 # Try a shallow clone - but that only works if the version is a ref (tag or
  77 # branch). Before trying to do a shallow clone we check if $($(PKG)_DL_VERSION)
  78 # is in the list provided by git ls-remote. If not we fall back on a full clone.
  79 #
  80 # Messages for the type of clone used are provided to ease debugging in case of
  81 # problems
  82 define DOWNLOAD_GIT
  83         test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
  84         (pushd $(DL_DIR) > /dev/null && \
  85          ((test "`git ls-remote $($(PKG)_SITE) $($(PKG)_DL_VERSION)`" && \
  86            echo "Doing shallow clone" && \
  87            $(GIT) clone --depth 1 -b $($(PKG)_DL_VERSION) --bare $($(PKG)_SITE) $($(PKG)_BASE_NAME)) || \
  88           (echo "Doing full clone" && \
  89            $(GIT) clone --bare $($(PKG)_SITE) $($(PKG)_BASE_NAME))) && \
  90         pushd $($(PKG)_BASE_NAME) > /dev/null && \
  91         $(GIT) archive --format=tar --prefix=$($(PKG)_BASE_NAME)/ $($(PKG)_DL_VERSION) | \
  92                 gzip -c > $(DL_DIR)/$($(PKG)_SOURCE) && \
  93         popd > /dev/null && \
  94         rm -rf $($(PKG)_DL_DIR) && \
  95         popd > /dev/null)
  96 endef
  97
  98 # TODO: improve to check that the given PKG_DL_VERSION exists on the remote
  99 # repository
 100 define SOURCE_CHECK_GIT
 101   $(GIT) ls-remote --heads $($(PKG)_SITE) > /dev/null
 102 endef
 103
 104 define SHOW_EXTERNAL_DEPS_GIT
 105         echo $($(PKG)_SOURCE)
 106 endef
 107
 108
 109 define DOWNLOAD_BZR
 110         test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
 111         $(BZR) export $(DL_DIR)/$($(PKG)_SOURCE) $($(PKG)_SITE) -r $($(PKG)_DL_VERSION)
 112 endef
 113
 114 define SOURCE_CHECK_BZR
 115         $(BZR) ls --quiet $($(PKG)_SITE) > /dev/null
 116 endef
 117
 118 define SHOW_EXTERNAL_DEPS_BZR
 119         echo $($(PKG)_SOURCE)
 120 endef
 121
 122 define DOWNLOAD_CVS
 123         test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
 124         (pushd $(DL_DIR) > /dev/null && \
 125         $(CVS) -z3 -d:pserver:anonymous@$(call stripurischeme,$(call qstrip,$($(PKG)_SITE))) \
 126                 co -d $($(PKG)_BASE_NAME) -r :$($(PKG)_DL_VERSION) -P $($(PKG)_RAWNAME) && \
 127         $(TAR) czf $($(PKG)_SOURCE) $($(PKG)_BASE_NAME)/ && \
 128         rm -rf $($(PKG)_DL_DIR) && \
 129         popd > /dev/null)
 130 endef
 131
 132 # Not all CVS servers support ls/rls, use login to see if we can connect
 133 define SOURCE_CHECK_CVS
 134         $(CVS) -d:pserver:anonymous:@$(call stripurischeme,$(call qstrip,$($(PKG)_SITE))) login
 135 endef
 136
 137 define SHOW_EXTERNAL_DEPS_CVS
 138         echo $($(PKG)_SOURCE)
 139 endef
 140
 141 define DOWNLOAD_SVN
 142         test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
 143         (pushd $(DL_DIR) > /dev/null && \
 144         $(SVN) export -r $($(PKG)_DL_VERSION) $($(PKG)_SITE) $($(PKG)_DL_DIR) && \
 145         $(TAR) czf $($(PKG)_SOURCE) $($(PKG)_BASE_NAME)/ && \
 146         rm -rf $($(PKG)_DL_DIR) && \
 147         popd > /dev/null)
 148 endef
 149
 150 define SOURCE_CHECK_SVN
 151   $(SVN) ls $($(PKG)_SITE) > /dev/null
 152 endef
 153
 154 define SHOW_EXTERNAL_DEPS_SVN
 155   echo $($(PKG)_SOURCE)
 156 endef
 157
 158 # SCP URIs should be of the form scp://[user@]host:filepath
 159 # Note that filepath is relative to the user's home directory, so you may want
 160 # to prepend the path with a slash: scp://[user@]host:/absolutepath
 161 define DOWNLOAD_SCP
 162         test -e $(DL_DIR)/$(2) || \
 163         $(SCP) '$(call stripurischeme,$(call qstrip,$(1)))' $(DL_DIR)/$(2)
 164 endef
 165
 166 define SOURCE_CHECK_SCP
 167         $(SSH) $(call domain,$(1),:) ls '$(call notdomain,$(1),:)' > /dev/null
 168 endef
 169
 170 define SHOW_EXTERNAL_DEPS_SCP
 171         echo $(2)
 172 endef
 173
 174
 175 define DOWNLOAD_HG
 176         test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
 177         (pushd $(DL_DIR) > /dev/null && \
 178         $(HG) clone --noupdate --rev $($(PKG)_DL_VERSION) $($(PKG)_SITE) $($(PKG)_BASE_NAME) && \
 179         $(HG) archive --repository $($(PKG)_BASE_NAME) --type tgz --prefix $($(PKG)_BASE_NAME)/ \
 180                       --rev $($(PKG)_DL_VERSION) $(DL_DIR)/$($(PKG)_SOURCE) && \
 181         rm -rf $($(PKG)_DL_DIR) && \
 182         popd > /dev/null)
 183 endef
 184
 185 # TODO: improve to check that the given PKG_DL_VERSION exists on the remote
 186 # repository
 187 define SOURCE_CHECK_HG
 188   $(HG) incoming --force -l1 $($(PKG)_SITE) > /dev/null
 189 endef
 190
 191 define SHOW_EXTERNAL_DEPS_HG
 192   echo $($(PKG)_SOURCE)
 193 endef
 194
 195 # Download a file using wget. Only download the file if it doesn't
 196 # already exist in the download directory. If the download fails,
 197 # remove the file (because wget -O creates a 0-byte file even if the
 198 # download fails).  To handle an interrupted download as well, download
 199 # to a temporary file first.  The temporary file will be overwritten
 200 # the next time the download is tried.
 201 define DOWNLOAD_WGET
 202         test -e $(DL_DIR)/$(2) || \
 203         ($(WGET) -O $(DL_DIR)/$(2).tmp '$(call qstrip,$(1))' && \
 204          mv $(DL_DIR)/$(2).tmp $(DL_DIR)/$(2)) || \
 205         (rm -f $(DL_DIR)/$(2).tmp ; exit 1)
 206 endef
 207
 208 define SOURCE_CHECK_WGET
 209   $(WGET) --spider '$(call qstrip,$(1))'
 210 endef
 211
 212 define SHOW_EXTERNAL_DEPS_WGET
 213   echo $(2)
 214 endef
 215
 216 define DOWNLOAD_LOCALFILES
 217         test -e $(DL_DIR)/$(2) || \
 218                 $(LOCALFILES) $(call stripurischeme,$(call qstrip,$(1))) $(DL_DIR)
 219 endef
 220
 221 define SOURCE_CHECK_LOCALFILES
 222   test -e $(call stripurischeme,$(call qstrip,$(1)))
 223 endef
 224
 225 define SHOW_EXTERNAL_DEPS_LOCALFILES
 226   echo $(2)
 227 endef
 228
 229 ################################################################################
 230 # DOWNLOAD -- Download helper. Will try to download source from:
 231 # 1) BR2_PRIMARY_SITE if enabled
 232 # 2) Download site, unless BR2_PRIMARY_SITE_ONLY is set
 233 # 3) BR2_BACKUP_SITE if enabled, unless BR2_PRIMARY_SITE_ONLY is set
 234 #
 235 # Argument 1 is the source location
 236 # Argument 2 is the source filename
 237 #
 238 # E.G. use like this:
 239 # $(call DOWNLOAD,$(FOO_SITE),$(FOO_SOURCE))
 240 ################################################################################
 241
 242 define DOWNLOAD
 243         $(call DOWNLOAD_INNER,$(1),$(if $(2),$(2),$(notdir $(1))))
 244 endef
 245
 246 define DOWNLOAD_INNER
 247         $(Q)if test -n "$(call qstrip,$(BR2_PRIMARY_SITE))" ; then \
 248                 case "$(call geturischeme,$(BR2_PRIMARY_SITE))" in \
 249                         scp) $(call $(DL_MODE)_SCP,$(BR2_PRIMARY_SITE)/$(2),$(2)) && exit ;; \
 250                         *) $(call $(DL_MODE)_WGET,$(BR2_PRIMARY_SITE)/$(2),$(2)) && exit ;; \
 251                 esac ; \
 252         fi ; \
 253         if test "$(BR2_PRIMARY_SITE_ONLY)" = "y" ; then \
 254                 exit 1 ; \
 255         fi ; \
 256         if test -n "$(1)" ; then \
 257                 if test -z "$($(PKG)_SITE_METHOD)" ; then \
 258                         scheme="$(call geturischeme,$(1))" ; \
 259                 else \
 260                         scheme="$($(PKG)_SITE_METHOD)" ; \
 261                 fi ; \
 262                 case "$$scheme" in \
 263                         git) $($(DL_MODE)_GIT) && exit ;; \
 264                         svn) $($(DL_MODE)_SVN) && exit ;; \
 265                         cvs) $($(DL_MODE)_CVS) && exit ;; \
 266                         bzr) $($(DL_MODE)_BZR) && exit ;; \
 267                         file) $($(DL_MODE)_LOCALFILES) && exit ;; \
 268                         scp) $($(DL_MODE)_SCP) && exit ;; \
 269                         hg) $($(DL_MODE)_HG) && exit ;; \
 270                         *) $(call $(DL_MODE)_WGET,$(1),$(2)) && exit ;; \
 271                 esac ; \
 272         fi ; \
 273         if test -n "$(call qstrip,$(BR2_BACKUP_SITE))" ; then \
 274                 $(call $(DL_MODE)_WGET,$(BR2_BACKUP_SITE)/$(2),$(2)) && exit ; \
 275         fi ; \
 276         exit 1
 277 endef