Check availabilty of all depedencies when building if necessary

build.nims

@@ -13,8 +13,7 @@
 # Libraries
 #=======================================
 
-import std/json, os
-import strformat, strutils
+import std/[json, os, sequtils, strformat, strutils, tables]
 
 import ".config/utils/ui.nims"
 import ".config/utils/cli.nims"
@@ -41,6 +40,28 @@ include ".config/who.nims"
 # Constants
 #=======================================
 
+type
+    PkgMan = enum
+        apk
+        apt
+        brew
+        bsd
+        chimera
+        dnf
+        emerge
+        eopkg
+        guix
+        mandriva
+        nix
+        pacman
+        pkg_add
+        pkgin
+        slackware
+        swupd
+        upgradepkg
+        xbps
+        zypper
+
 let
     targetDir = getHomeDir()/".arturo"
 
@@ -51,6 +72,199 @@ let
         mainFile:       "src"/"arturo.nim",
     )
 
+# BSDs not supported yet
+when defined(linux):
+    const
+        dependencies = [
+            "gtk+-3.0",
+            "webkit2gtk-4.1",
+            "gmp",
+            "mpfr",
+        ]
+elif defined(macosx):
+    const
+        dependencies = [
+            "mpfr",
+        ]
+elif defined(windows):
+    const
+        dependencies = []
+else:
+    const
+        dependencies = []
+
+when defined(linux):
+    const
+        distros = {
+            "alpine"        : apk,
+            "altlinux"      : apt,
+            "arch"          : pacman,
+            "archlinux"     : pacman,
+            "arkane"        : pacman,
+            "artix"         : pacman,
+            "aurora"        : brew,
+            "blackarch"     : pacman,
+            "blendos"       : pacman,
+            "bluefin"       : brew,
+            "centos"        : dnf,
+            "chimera"       : chimera,
+            "clear-linux-os": swupd,
+            "debian"        : apt,
+            "deepin"        : apt,
+            "fedora"        : dnf,
+            "garuda"        : pacman,
+            "gentoo"        : emerge,
+            "gnoppix"       : pacman,
+            "guix"          : guix,
+            "kaos"          : pacman,
+            "manjaro"       : pacman,
+            "nixos"         : nix,
+            "nobara"        : dnf,
+            "openmandriva"  : mandriva,
+            "opensuse"      : zypper,
+            "pureos"        : apt,
+            "rhel"          : dnf,
+            "slackware"     : upgradepkg,
+            "solus"         : eopkg,
+            "suse"          : zypper,
+            "ubuntu"        : apt,
+            "void"          : xbps,
+        }.toTable
+elif defined(bsd):
+    const
+        distros = {
+            "dragonfly"     : bsd,
+            "freebsd"       : bsd,
+            "ghostbsd"      : bsd,
+            "netbsd"        : pkgin,
+            "openbsd"       : pkg_add,
+        }.toTable
+elif defined(macosx):
+    const
+        distros = {
+            "macos"         : brew,
+        }.toTable
+else:
+    const
+        distros = Table[string, PkgMan]()
+const
+    buildsWithDependencies = [
+        "@full",
+        "@docgen",
+    ]
+
+    dependenciesNames = {
+        apk:       { "gtk+-3.0"      : "gtk+3.0-dev",
+                     "webkit2gtk-4.1": "webkit2gtk-4.1-dev",
+                     "gmp"           : "gmp-dev",
+                     "mpfr"          : "mpfr-dev",
+        }.toTable,
+        chimera:   { "gtk+-3.0"      : "gtk+3-devel",
+                     "webkit2gtk-4.1": "webkitgtk-devel",
+                     "gmp"           : "gmp-devel",
+                     "mpfr"          : "mpfr-devel",
+        }.toTable,
+        apt:       { "gtk+-3.0"      : "libgtk-3-dev",
+                     "webkit2gtk-4.1": "libwebkit2gtk4.1-devel",
+                     "gmp"           : "libgmp-devel",
+                     "mpfr"          : "libmpfr-devel",
+        }.toTable,
+        brew:      { "gtk+-3.0"      : "gtk+3",
+                     "webkit2gtk-4.1": "webkitgtk",
+                     "gmp"           : "gmp",
+                     "mpfr"          : "mpfr",
+        }.toTable,
+        dnf:       { "gtk+-3.0"      : "gtk3-devel",
+                     "webkit2gtk-4.1": "webkit2gtk4.1-devel",
+                     "gmp"           : "gmp-devel",
+                     "mpfr"          : "mpfr-devel",
+        }.toTable,
+        emerge:    { "gtk+-3.0"      : "gtk+",
+                     "webkit2gtk-4.1": "webkit-gtk",
+                     "gmp"           : "gmp",
+                     "mpfr"          : "mpfr",
+        }.toTable,
+        eopkg:     { "gtk+-3.0"      : "libgtk-3-devel",
+                     "webkit2gtk-4.1": "libwebkit-gtk41-devel",
+                     "gmp"           : "gmp",
+                     "mpfr"          : "mpfr",
+        }.toTable,
+        guix:      { "gtk+-3.0"      : "gtk+@3",
+                     "webkit2gtk-4.1": "webkitgtk",
+                     "gmp"           : "gmp",
+                     "mpfr"          : "mpfr",
+        }.toTable,
+        mandriva:  { "gtk+-3.0"      : "lib64gtk+3.0-devel",
+                     "webkit2gtk-4.1": "lib64webkit4.1-devel",
+                     "gmp"           : "lib64gmp-devel",
+                     "mpfr"          : "lib64mpfr-devel",
+        }.toTable,
+        nix:       { "gtk+-3.0"      : "gtk3",
+                     "webkit2gtk-4.1": "webkitgtk_4_1",
+                     "gmp"           : "gmp",
+                     "mpfr"          : "mpfr",
+        }.toTable,
+        pacman:    { "gtk+-3.0"      : "gtk3",
+                     "webkit2gtk-4.1": "webkit2gtk-4.1",
+                     "gmp"           : "gmp",
+                     "mpfr"          : "mpfr",
+        }.toTable,
+        slackware: { "gtk+-3.0"      : "gtk+3[current version here].txz",
+                     "webkit2gtk-4.1": "webkit2gtk4.1[current version here].txz",
+                     "gmp"           : "gmp[current version here].txz",
+                     "mpfr"          : "mpfr[current version here].txz",
+        }.toTable,
+        swupd:     { "gtk+-3.0"      : "devpkg-gtk3",
+                     "webkit2gtk-4.1": "devpkg-webkitgtk",
+                     "gmp"           : "devpkg-gmp",
+                     "mpfr"          : "devpkg-mpfr",
+        }.toTable,
+        xbps:      { "gtk+-3.0"      : "gtk+3-devel",
+                     "webkit2gtk-4.1": "webkit2gtk-devel",
+                     "gmp"           : "gmp-devel",
+                     "mpfr"          : "mpfr-devel",
+        }.toTable,
+        zypper:    { "gtk+-3.0"      : "gtk+3-devel",
+                     "webkit2gtk-4.1": "webkit2gtk-devel",
+                     "gmp"           : "gmp-devel",
+                     "mpfr"          : "mpfr-devel",
+        }.toTable,
+    }.toTable
+
+    # String templates for complex installation commands
+    nixInstallCmd =
+        """
+        Update configuration.nix to include:
+        $1
+
+        and for building applications targeting Arturo use:
+        nix-shell -p <THE LIST ABOVE, HERE>
+        or edit shell.nix accordingly.
+        """
+
+    installCmds = {
+        apk       : "apk add $1",
+        apt       : "apt-get install $1",
+        brew      : "brew install $1",
+        bsd       : "pkg install $1",
+        chimera   : "apk add $1",
+        dnf       : "dnf install $1",
+        emerge    : "emerge install $1",
+        eopkg     : "eopkg install $1",
+        guix      : "guix install $1",
+        mandriva  : "dnf install $1",
+        nix       :  nixInstallCmd,
+        pacman    : "pacman -S $1",
+        pkg_add   : "pkg_add $1",
+        pkgin     : "pkgin install $1",
+        swupd     : "swupd bundle-add $1",
+        upgradepkg: "upgradepkg --install-new $1",
+        xbps      : "xbps-install $1",
+        zypper    : "zypper install $1",
+    }.toTable
+
+    #TODO OTHER = @["redox", "tinycore"] these are niche but very interesting
+
 #=======================================
 # Types
 #=======================================
@@ -234,6 +448,63 @@ proc installAll*(config: BuildConfig, targetFile: string) =
 
     main(config)
 
+proc getDistro(): string =
+    if defined(linux):
+        var id = gorge("grep ^ID= /etc/os-release").toLower()
+        if id.len == 0: return "unknown"
+        var idLike = gorge("grep ^ID_LIKE= /etc/os-release")
+        var idLikes: seq[string]
+        if idLike.len > 0:
+            idLikes = idLike[8..^1].strip(chars = {'"'}).toLower().splitWhitespace()
+        for distro in distros.keys:
+            if distro in id or distro in idLikes:
+                return distro
+        return "unknown"
+
+    if defined(bsd):
+        var distro = gorge("uname -s").toLower()
+        if distro in distros:
+            return distro
+        else:
+            return "unknown"
+
+    if defined(macosx):
+        return "macos"
+
+proc checkDependencies(logging: bool) =
+    var fails: seq[string]
+    var os: string
+
+    when defined(windows): return
+    when defined(bsd)    : return
+
+    log ""
+    for dep in dependencies:
+        if gorgeEx(fmt"pkg-config --exists {dep}").exitCode != 0:
+            fails.add(dep)
+
+    if fails.len > 0:
+        os = getDistro()
+        let failText = (if fails.len == 1: "this dependency" else: fmt"these {fails.len} dependencies")
+        warn fmt"Missing {failText}:"
+        for fail in fails:
+            log fail
+            if os == "nixos": continue
+            if os != "unknown":
+                var cmd = installCmds[distros[os]]
+                log "-> " & cmd % dependenciesNames[distros[os]][fail]
+        log ""
+
+        if os == "nixos":
+            log installCmds[nix] %
+                (fails.map do (fail: string) -> string:
+                    dependenciesNames[distros[os]][fail]).join("\p")
+
+        panic "Install all packages listed above and try again", 1
+    else:
+        if logging:
+            log "Dependencies successfully checked"
+
 proc showBuildInfo*(config: BuildConfig) =
     let
         params = flags.join(" ")
@@ -250,6 +521,9 @@ proc showBuildInfo*(config: BuildConfig) =
     if not config.silentCompilation:
         log fmt"flags: {params}"
 
+    if config.version in buildsWithDependencies:
+        checkDependencies(config.shouldLog)
+
 #=======================================
 # Methods
 #=======================================
@@ -455,6 +729,7 @@ cmd build, "[default] Build arturo and optionally install the executable":
         >> ["docgen"]:
             fullBuildConfig()
             docgenBuildConfig()
+            config.version = "@docgen"
         >> ["safe"]:
             safeBuildConfig()
             miniBuild()
@@ -591,4 +866,4 @@ cmd benchmark, "Run benchmark suite":
     unless paths.global.performBenchmarks():
         quit paths.local.performBenchmarks().toErrorCode
 
-helpForMissingCommand()
+helpForMissingCommand()