bitbake: bitbake-user-manual: Updated the datastore functions
Fixes [YOCTO #10400] No information existed for cases when a variable did not exist. I added this information to each of the variables in the table. (Bitbake rev: 466b2c30f31754a7b6a2478e359f687ec6888e0d) Signed-off-by: Scott Rifenbark <srifenbark@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -2317,7 +2317,8 @@
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<row>
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<entry align="left"><filename>d.getVar("X", expand)</filename></entry>
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<entry align="left">Returns the value of variable "X".
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Using "expand=True" expands the value.</entry>
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Using "expand=True" expands the value.
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Returns "None" if the variable "X" does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.setVar("X", "value")</filename></entry>
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@ -2325,24 +2326,32 @@
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</row>
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<row>
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<entry align="left"><filename>d.appendVar("X", "value")</filename></entry>
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<entry align="left">Adds "value" to the end of the variable "X".</entry>
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<entry align="left">Adds "value" to the end of the variable "X".
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Acts like <filename>d.setVar("X", "value")</filename>
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if the variable "X" does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.prependVar("X", "value")</filename></entry>
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<entry align="left">Adds "value" to the start of the variable "X".</entry>
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<entry align="left">Adds "value" to the start of the variable "X".
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Acts like <filename>d.setVar("X", "value")</filename>
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if the variable "X" does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.delVar("X")</filename></entry>
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<entry align="left">Deletes the variable "X" from the datastore.</entry>
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<entry align="left">Deletes the variable "X" from the datastore.
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Does nothing if the variable "X" does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.renameVar("X", "Y")</filename></entry>
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<entry align="left">Renames the variable "X" to "Y".</entry>
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<entry align="left">Renames the variable "X" to "Y".
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Does nothing if the variable "X" does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.getVarFlag("X", flag, expand)</filename></entry>
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<entry align="left">Returns the value of variable "X".
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Using "expand=True" expands the value.</entry>
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Using "expand=True" expands the value.
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Returns "None" if either the variable "X" or the named flag
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does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.setVarFlag("X", flag, "value")</filename></entry>
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@ -2351,12 +2360,16 @@
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<row>
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<entry align="left"><filename>d.appendVarFlag("X", flag, "value")</filename></entry>
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<entry align="left">Appends "value" to the named flag on the
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variable "X".</entry>
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variable "X".
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Acts like <filename>d.setVarFlag("X", flag, "value")</filename>
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if the named flag does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.prependVarFlag("X", flag, "value")</filename></entry>
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<entry align="left">Prepends "value" to the named flag on
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the variable "X".</entry>
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the variable "X".
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Acts like <filename>d.setVarFlag("X", flag, "value")</filename>
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if the named flag does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.delVarFlag("X", flag)</filename></entry>
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@ -2372,16 +2385,23 @@
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</row>
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<row>
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<entry align="left"><filename>d.getVarFlags("X")</filename></entry>
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<entry align="left">Returns a <filename>flagsdict</filename> of the flags for
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the variable "X".</entry>
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<entry align="left">Returns a <filename>flagsdict</filename>
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of the flags for the variable "X".
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Returns "None" if the variable "X" does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.delVarFlags("X")</filename></entry>
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<entry align="left">Deletes all the flags for the variable "X".</entry>
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<entry align="left">Deletes all the flags for the variable "X".
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Does nothing if the variable "X" does not exist.</entry>
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</row>
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<row>
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<entry align="left"><filename>d.expand(expression)</filename></entry>
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<entry align="left">Expands variable references in the specified string expression.</entry>
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<entry align="left">Expands variable references in the specified
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string expression.
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References to variables that do not exist are left as is.
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For example, <filename>d.expand("foo ${X}")</filename>
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expands to the literal string "foo ${X}" if the
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variable "X" does not exist.</entry>
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</row>
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</tbody>
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</tgroup>
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