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authorSiri Hansen <siri@erlang.org>2016-09-28 16:40:19 +0200
committerSiri Hansen <siri@erlang.org>2016-09-28 16:57:59 +0200
commit714570912d678c10f4aa4b6a6692d958e0fc7fe7 (patch)
treede2d7c9bb558355224e58714d8ce82c49447c411
parentdabc6644991a6e732dc4404433215d1333a0ea07 (diff)
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Document the order of directories added with code:add_pathsa/1
code:add_pathsa/1 reverts the list of directories when adding it at the beginning of the code path. The command line option '-pa' behaves in the same way. This is now documented.
-rw-r--r--erts/doc/src/erl.xml8
-rw-r--r--lib/kernel/doc/src/code.xml11
-rw-r--r--lib/sasl/doc/src/script.xml2
3 files changed, 14 insertions, 7 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index f62d3fb170..eb1d24cf12 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -393,9 +393,11 @@
<tag><c><![CDATA[-pa Dir1 Dir2 ...]]></c></tag>
<item>
<p>Adds the specified directories to the beginning of the code
- path, similar to <c><![CDATA[code:add_pathsa/1]]></c>; see
- <seealso marker="kernel:code"><c>code(3)</c></seealso>.
- As an alternative to <c>-pa</c>, if several directories are
+ path, similar to <seealso marker="kernel:code#add_pathsa/1">
+ <c><![CDATA[code:add_pathsa/1]]></c></seealso>. Note that the
+ order of the given directories will be reversed in the
+ resulting path.</p>
+ <p>As an alternative to <c>-pa</c>, if several directories are
to be prepended to the code path and the directories have a
common parent directory, that parent directory can be
specified in environment variable <c>ERL_LIBS</c>; see
diff --git a/lib/kernel/doc/src/code.xml b/lib/kernel/doc/src/code.xml
index 4db377bcde..3143cdc825 100644
--- a/lib/kernel/doc/src/code.xml
+++ b/lib/kernel/doc/src/code.xml
@@ -382,9 +382,14 @@ zip:create("mnesia-4.4.7.ez",
<name name="add_pathsa" arity="1"/>
<fsummary>Add directories to the beginning of the code path.</fsummary>
<desc>
- <p>Adds the directories in <c><anno>Dirs</anno></c> to the beginning of
- the code path. If a <c><anno>Dir</anno></c> exists, it is removed
- from the old position in the code path.</p>
+ <p>Traverses <c><anno>Dirs</anno></c> and adds
+ each <c><anno>Dir</anno></c> to the beginning of the code
+ path. This means that the order of <c><anno>Dirs</anno></c>
+ is reversed in the resulting code path. For example, if you
+ add <c>[Dir1,Dir2]</c>, the resulting path will
+ be <c>[Dir2,Dir1|OldCodePath]</c>.</p>
+ <p>If a <c><anno>Dir</anno></c> already exists in the code
+ path, it is removed from the old position.</p>
<p>Always returns <c>ok</c>, regardless of the validity of each
individual <c><anno>Dir</anno></c>.</p>
</desc>
diff --git a/lib/sasl/doc/src/script.xml b/lib/sasl/doc/src/script.xml
index 8ed132354d..b40ff28179 100644
--- a/lib/sasl/doc/src/script.xml
+++ b/lib/sasl/doc/src/script.xml
@@ -88,7 +88,7 @@
follows:</p>
<list type="bulleted">
<item><c>-pa Dir1 Dir2 ... DirN</c> adds the directories
- <c>Dir1, Dir2, ..., DirN</c> to the front of the initial
+ <c>DirN, DirN-1, ..., Dir2, Dir1</c> to the front of the initial
load path.</item>
<item><c>-pz Dir1 Dir2 ... DirN</c> adds the directories
<c>Dir1, Dir2, ..., DirN</c> to the end of the initial