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author | Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-01-18 15:24:18 +0000 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-01-27 21:03:23 +0000 |
commit | 1669f39e470fb3c66097b2e4a62e14d67c8b7e4d (patch) | |
tree | e3c727f8e86d4426164b663a7f164323f01a9653 | |
parent | 123b978c8278ca917cff9a6f85fdd65a1d58c414 (diff) | |
download | poky-1669f39e470fb3c66097b2e4a62e14d67c8b7e4d.tar.gz |
bitbake: user-manual-fetching: Editing pass over the manual chapter
(Bitbake rev: b0fc79e6405b7070a42cfda035e87edc832f8334)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r-- | bitbake/doc/user-manual/user-manual-fetching.xml | 97 |
1 files changed, 53 insertions, 44 deletions
diff --git a/bitbake/doc/user-manual/user-manual-fetching.xml b/bitbake/doc/user-manual/user-manual-fetching.xml index 1ff8acb4e0..cdca64c801 100644 --- a/bitbake/doc/user-manual/user-manual-fetching.xml +++ b/bitbake/doc/user-manual/user-manual-fetching.xml | |||
@@ -4,25 +4,25 @@ | |||
4 | <chapter> | 4 | <chapter> |
5 | <title>File download support</title> | 5 | <title>File download support</title> |
6 | 6 | ||
7 | <section> | 7 | <section id='file-download-overview'> |
8 | <title>Overview</title> | 8 | <title>Overview</title> |
9 | 9 | ||
10 | <para> | 10 | <para> |
11 | BitBake provides support to download files | 11 | BitBake provides support to download files. |
12 | this procedure is called fetching and it handled by the | 12 | This procedure is called fetching and is handled by the |
13 | fetch and fetch2 modules. | 13 | fetch and fetch2 modules. |
14 | At this point the original fetch code is considered to | 14 | At this point, the original fetch code is considered to |
15 | be replaced by fetch2 and this manual only related | 15 | be replaced by fetch2 and this manual is only related |
16 | to the fetch2 codebase. | 16 | to the fetch2 codebase. |
17 | </para> | 17 | </para> |
18 | 18 | ||
19 | <para> | 19 | <para> |
20 | The <filename>SRC_URI</filename> is normally used to | 20 | The <filename>SRC_URI</filename> is normally used to |
21 | tell BitBake which files to fetch. | 21 | tell BitBake which files to fetch. |
22 | The next sections will describe the available fetchers and | 22 | The next sections describe the available fetchers and |
23 | their options. | 23 | their options. |
24 | Each fetcher honors a set of variables and per | 24 | Each fetcher honors a set of variables and per |
25 | URI parameters separated by a <quote>;</quote> consisting of a key and | 25 | URI parameters separated by a “;” consisting of a key and |
26 | a value. | 26 | a value. |
27 | The semantics of the variables and parameters are | 27 | The semantics of the variables and parameters are |
28 | defined by the fetcher. | 28 | defined by the fetcher. |
@@ -31,16 +31,16 @@ | |||
31 | </para> | 31 | </para> |
32 | 32 | ||
33 | <para> | 33 | <para> |
34 | The overall fetch process is that first, fetches are attempted from | 34 | The overall fetch process first attempts to fetch from |
35 | <filename>PREMIRRORS</filename>. | 35 | <filename>PREMIRRORS</filename>. |
36 | If those don't work, the original <filename>SRC_URI</filename> | 36 | If these fail, the original <filename>SRC_URI</filename> |
37 | is attempted | 37 | is attempted. |
38 | and if that fails, BitBake will fall back to | 38 | If that fails, BitBake falls back to |
39 | <filename>MIRRORS</filename>. | 39 | <filename>MIRRORS</filename>. |
40 | Cross urls are supported, so its possible to mirror | 40 | Because cross-URLs are supported, it is possible to mirror |
41 | a git repository on an http server as a tarball for example. | 41 | a Git repository on an HTTP server as a tarball. |
42 | Some example commonly used mirror | 42 | Here are some examples that show commonly used mirror |
43 | definitions are: | 43 | definitions: |
44 | <literallayout class='monospaced'> | 44 | <literallayout class='monospaced'> |
45 | PREMIRRORS ?= "\ | 45 | PREMIRRORS ?= "\ |
46 | bzr://.*/.* http://somemirror.org/sources/ \n \ | 46 | bzr://.*/.* http://somemirror.org/sources/ \n \ |
@@ -63,26 +63,33 @@ MIRRORS =+ "\ | |||
63 | Non-local downloaded output is placed | 63 | Non-local downloaded output is placed |
64 | into the directory specified by the | 64 | into the directory specified by the |
65 | <filename>DL_DIR</filename> variable. | 65 | <filename>DL_DIR</filename> variable. |
66 | For non local archive downloads the code can verify | 66 | For non local archive downloads, the code can verify |
67 | sha256 and md5 checksums for the download to ensure | 67 | sha256 and md5 checksums for the download to ensure |
68 | the file has been downloaded correctly. | 68 | the file has been downloaded correctly. |
69 | These may be specified either in the form | 69 | These can be specified in the following forms |
70 | <filename>SRC_URI[md5sum]</filename> | 70 | for md5 and sha256 checksums, respectively: |
71 | for the md5 checksum and | 71 | <literallayout class='monospaced'> |
72 | <filename>SRC_URI[sha256sum]</filename> | 72 | SRC_URI[md5sum] |
73 | for the sha256 checksum or as parameters on the SRC_URI such as | 73 | SRC_URI[sha256sum] |
74 | SRC_URI="http://example.com/foobar.tar.bz2;md5sum=4a8e0f237e961fd7785d19d07fdb994d". | 74 | </literallayout> |
75 | You can also specify them as parameters on the | ||
76 | <filename>SRC_URI</filename>: | ||
77 | <literallayout class='monospaced'> | ||
78 | SRC_URI="http://example.com/foobar.tar.bz2;md5sum=4a8e0f237e961fd7785d19d07fdb994d" | ||
79 | </literallayout> | ||
75 | If <filename>BB_STRICT_CHECKSUM</filename> is set, any download | 80 | If <filename>BB_STRICT_CHECKSUM</filename> is set, any download |
76 | without a checksum will trigger an error message. | 81 | without a checksum will trigger an error message. |
77 | In cases where multiple files are listed in | 82 | In cases where multiple files are listed in |
78 | SRC_URI, the name parameter is used | 83 | <filename>SRC_URI</filename>, the name parameter is used |
79 | assign names to the urls and these are then specified | 84 | assign names to the URLs and these are then specified |
80 | in the checksums in the form | 85 | in the checksums using the following form: |
81 | SRC_URI[name.sha256sum]. | 86 | <literallayout class='monospaced'> |
87 | SRC_URI[name.sha256sum] | ||
88 | </literallayout> | ||
82 | </para> | 89 | </para> |
83 | </section> | 90 | </section> |
84 | 91 | ||
85 | <section> | 92 | <section id='local-file-fetcher'> |
86 | <title>Local file fetcher</title> | 93 | <title>Local file fetcher</title> |
87 | 94 | ||
88 | <para> | 95 | <para> |
@@ -103,7 +110,7 @@ MIRRORS =+ "\ | |||
103 | </para> | 110 | </para> |
104 | </section> | 111 | </section> |
105 | 112 | ||
106 | <section> | 113 | <section id='cvs-fetcher'> |
107 | <title>CVS fetcher</title> | 114 | <title>CVS fetcher</title> |
108 | 115 | ||
109 | <para> | 116 | <para> |
@@ -145,16 +152,16 @@ MIRRORS =+ "\ | |||
145 | </para> | 152 | </para> |
146 | </section> | 153 | </section> |
147 | 154 | ||
148 | <section> | 155 | <section id='http-ftp-fetcher'> |
149 | <title>HTTP/FTP fetcher</title> | 156 | <title>HTTP/FTP fetcher</title> |
150 | 157 | ||
151 | <para> | 158 | <para> |
152 | The URNs for the HTTP/FTP fetcher are http, https and ftp. | 159 | The URNs for the HTTP/FTP fetcher are http, https, and ftp. |
153 | This fetcher honors the variables | 160 | This fetcher honors the variables |
154 | <filename>FETCHCOMMAND_wget</filename>. | 161 | <filename>FETCHCOMMAND_wget</filename>. |
155 | <filename>FETCHCOMMAND</filename> contains the command used | 162 | <filename>FETCHCOMMAND</filename> contains the command used |
156 | for fetching. | 163 | for fetching. |
157 | <quote>${URI}</quote> and <quote>${FILES}</quote> will be replaced by the URI and | 164 | “${URI}” and “${FILES}” will be replaced by the URI and |
158 | basename of the file to be fetched. | 165 | basename of the file to be fetched. |
159 | <literallayout class='monospaced'> | 166 | <literallayout class='monospaced'> |
160 | SRC_URI = "http://oe.handhelds.org/not_there.aac" | 167 | SRC_URI = "http://oe.handhelds.org/not_there.aac" |
@@ -164,8 +171,9 @@ MIRRORS =+ "\ | |||
164 | </para> | 171 | </para> |
165 | </section> | 172 | </section> |
166 | 173 | ||
167 | <section> | 174 | <section id='svn-fetcher'> |
168 | <title>SVN fetcher</title> | 175 | <title>SVN Fetcher</title> |
176 | |||
169 | <para> | 177 | <para> |
170 | The URN for the SVN fetcher is svn. | 178 | The URN for the SVN fetcher is svn. |
171 | </para> | 179 | </para> |
@@ -174,7 +182,7 @@ MIRRORS =+ "\ | |||
174 | This fetcher honors the variables | 182 | This fetcher honors the variables |
175 | <filename>FETCHCOMMAND_svn</filename>, | 183 | <filename>FETCHCOMMAND_svn</filename>, |
176 | <filename>SVNDIR</filename>, | 184 | <filename>SVNDIR</filename>, |
177 | <filename>SRCREV</filename>. | 185 | and <filename>SRCREV</filename>. |
178 | <filename>FETCHCOMMAND</filename> contains the | 186 | <filename>FETCHCOMMAND</filename> contains the |
179 | subversion command. | 187 | subversion command. |
180 | <filename>SRCREV</filename> specifies which revision | 188 | <filename>SRCREV</filename> specifies which revision |
@@ -185,8 +193,8 @@ MIRRORS =+ "\ | |||
185 | The supported parameters are proto, rev and scmdata. | 193 | The supported parameters are proto, rev and scmdata. |
186 | proto is the Subversion protocol, rev is the | 194 | proto is the Subversion protocol, rev is the |
187 | Subversion revision. | 195 | Subversion revision. |
188 | If scmdata is set to <quote>keep</quote>, the <quote>.svn</quote> directories will | 196 | If scmdata is set to “keep”, the “.svn” directories will |
189 | be available during compile-time. | 197 | be available during compile-time. |
190 | <literallayout class='monospaced'> | 198 | <literallayout class='monospaced'> |
191 | SRC_URI = "svn://svn.oe.handhelds.org/svn;module=vip;proto=http;rev=667" | 199 | SRC_URI = "svn://svn.oe.handhelds.org/svn;module=vip;proto=http;rev=667" |
192 | SRC_URI = "svn://svn.oe.handhelds.org/svn/;module=opie;proto=svn+ssh;date=20060126" | 200 | SRC_URI = "svn://svn.oe.handhelds.org/svn/;module=opie;proto=svn+ssh;date=20060126" |
@@ -194,23 +202,24 @@ MIRRORS =+ "\ | |||
194 | </para> | 202 | </para> |
195 | </section> | 203 | </section> |
196 | 204 | ||
197 | <section> | 205 | <section id='git-fetcher'> |
198 | <title>GIT fetcher</title> | 206 | <title>GIT Fetcher</title> |
207 | |||
199 | <para> | 208 | <para> |
200 | The URN for the GIT Fetcher is git. | 209 | The URN for the GIT Fetcher is git. |
201 | </para> | 210 | </para> |
202 | 211 | ||
203 | <para> | 212 | <para> |
204 | The variable <filename>GITDIR</filename> will be used as the | 213 | The variable <filename>GITDIR</filename> will be used as the |
205 | base directory where the git tree is cloned to. | 214 | base directory where the Git tree is cloned to. |
206 | </para> | 215 | </para> |
207 | 216 | ||
208 | <para> | 217 | <para> |
209 | The parameters are tag, protocol and scmdata. | 218 | The parameters are tag, protocol, and scmdata. |
210 | tag is a Git tag, the default is <quote>master</quote>. | 219 | The tag parameter is a Git tag, the default is “master”. |
211 | protocol is the Git protocol to use and defaults to <quote>git</quote> | 220 | The protocol tag is the Git protocol to use and defaults to “git” |
212 | if a hostname is set, otherwise its <quote>file</quote>. | 221 | if a hostname is set, otherwise it is “file”. |
213 | If scmdata is set to <quote>keep</quote>, the <quote>.git</quote> directory will be available | 222 | If scmdata is set to “keep”, the “.git” directory will be available |
214 | during compile-time. | 223 | during compile-time. |
215 | <literallayout class='monospaced'> | 224 | <literallayout class='monospaced'> |
216 | SRC_URI = "git://git.oe.handhelds.org/git/vip.git;tag=version-1" | 225 | SRC_URI = "git://git.oe.handhelds.org/git/vip.git;tag=version-1" |