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Move data part of dub.platform to dub.data
We want to separate the data part, which is exposed to the PackageRecipe, from the actual platform check code, which is used when building.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| /******************************************************************************* | ||
| Represent a target platform | ||
| Platform informations can be embedded in recipe, such that some settings | ||
| only target a certain platform (e.g. sourceFiles, lflags, etc...). | ||
| The struct in this module represent that information, structured. | ||
| *******************************************************************************/ | ||
|
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||
| module dub.data.platform; | ||
|
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| /// Represents a platform a package can be build upon. | ||
| struct BuildPlatform { | ||
| /// Special constant used to denote matching any build platform. | ||
| enum any = BuildPlatform(null, null, null, null, -1); | ||
|
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||
| /// Platform identifiers, e.g. ["posix", "windows"] | ||
| string[] platform; | ||
| /// CPU architecture identifiers, e.g. ["x86", "x86_64"] | ||
| string[] architecture; | ||
| /// Canonical compiler name e.g. "dmd" | ||
| string compiler; | ||
| /// Compiler binary name e.g. "ldmd2" | ||
| string compilerBinary; | ||
| /// Compiled frontend version (e.g. `2067` for frontend versions 2.067.x) | ||
| int frontendVersion; | ||
| /// Compiler version e.g. "1.11.0" | ||
| string compilerVersion; | ||
| /// Frontend version string from frontendVersion | ||
| /// e.g: 2067 => "2.067" | ||
| string frontendVersionString() const | ||
| { | ||
| import std.format : format; | ||
|
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| const maj = frontendVersion / 1000; | ||
| const min = frontendVersion % 1000; | ||
| return format("%d.%03d", maj, min); | ||
| } | ||
| /// | ||
| unittest | ||
| { | ||
| BuildPlatform bp; | ||
| bp.frontendVersion = 2067; | ||
| assert(bp.frontendVersionString == "2.067"); | ||
| } | ||
|
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| /// Checks to see if platform field contains windows | ||
| bool isWindows() const { | ||
| import std.algorithm : canFind; | ||
| return this.platform.canFind("windows"); | ||
| } | ||
| /// | ||
| unittest { | ||
| BuildPlatform bp; | ||
| bp.platform = ["windows"]; | ||
| assert(bp.isWindows); | ||
| bp.platform = ["posix"]; | ||
| assert(!bp.isWindows); | ||
| } | ||
| } | ||
|
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| /** Matches a platform specification string against a build platform. | ||
| Specifications are build upon the following scheme, where each component | ||
| is optional (indicated by []), but the order is obligatory: | ||
| "[-platform][-architecture][-compiler]" | ||
| So the following strings are valid specifications: `"-windows-x86-dmd"`, | ||
| `"-dmd"`, `"-arm"`, `"-arm-dmd"`, `"-windows-dmd"` | ||
| Params: | ||
| platform = The build platform to match against the platform specification | ||
| specification = The specification being matched. It must either be an | ||
| empty string or start with a dash. | ||
| Returns: | ||
| `true` if the given specification matches the build platform, `false` | ||
| otherwise. Using an empty string as the platform specification will | ||
| always result in a match. | ||
| */ | ||
| bool matchesSpecification(in BuildPlatform platform, const(char)[] specification) | ||
| { | ||
| import std.range : empty; | ||
| import std.string : chompPrefix, format; | ||
| import std.algorithm : canFind, splitter; | ||
| import std.exception : enforce; | ||
|
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| if (specification.empty) return true; | ||
| if (platform == BuildPlatform.any) return true; | ||
|
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| auto splitted = specification.chompPrefix("-").splitter('-'); | ||
| enforce(!splitted.empty, format("Platform specification, if present, must not be empty: \"%s\"", specification)); | ||
|
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| if (platform.platform.canFind(splitted.front)) { | ||
| splitted.popFront(); | ||
| if (splitted.empty) | ||
| return true; | ||
| } | ||
| if (platform.architecture.canFind(splitted.front)) { | ||
| splitted.popFront(); | ||
| if (splitted.empty) | ||
| return true; | ||
| } | ||
| if (platform.compiler == splitted.front) { | ||
| splitted.popFront(); | ||
| enforce(splitted.empty, "No valid specification! The compiler has to be the last element: " ~ specification); | ||
| return true; | ||
| } | ||
| return false; | ||
| } | ||
|
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| /// | ||
| unittest { | ||
| auto platform = BuildPlatform(["posix", "linux"], ["x86_64"], "dmd"); | ||
| assert(platform.matchesSpecification("")); | ||
| assert(platform.matchesSpecification("posix")); | ||
| assert(platform.matchesSpecification("linux")); | ||
| assert(platform.matchesSpecification("linux-dmd")); | ||
| assert(platform.matchesSpecification("linux-x86_64-dmd")); | ||
| assert(platform.matchesSpecification("x86_64")); | ||
| assert(!platform.matchesSpecification("windows")); | ||
| assert(!platform.matchesSpecification("ldc")); | ||
| assert(!platform.matchesSpecification("windows-dmd")); | ||
|
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| // Before PR#2279, a leading '-' was required | ||
| assert(platform.matchesSpecification("-x86_64")); | ||
| } |
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