mk: Add draft for gitlab fetch

[nikita <nikita%NetBSD.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	nikita <nikita%NetBSD.org@localhost>
Pushed By:	ng0
Date:		Wed May 6 23:28:17 2020 +0200
Changeset:	c7552b184863801d345d2ed2cc3a389c6ddfd6c9

Added Files:
	mk/gitlab.mk

Log Message:
mk: Add draft for gitlab fetch

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=c7552b184863801d345d2ed2cc3a389c6ddfd6c9

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 mk/gitlab.mk | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)

diffs:
diff --git a/mk/gitlab.mk b/mk/gitlab.mk
new file mode 100644
index 0000000000..444a01c34b
--- /dev/null
+++ b/mk/gitlab.mk
@@ -0,0 +1,91 @@
+# $NetBSD$
+#
+# gitlab.com master site handling
+#
+# To use, set in Makefile:
+#
+# DISTNAME=	exampleproject-1.2
+# MASTER_SITES=	${MASTER_SITE_GITLAB:=accountname/}
+#
+# The following variables alter gitlab.mk behavior:
+#
+# GITLAB_PROJECT	defaults to PKGBASE
+# GITLAB_TAG		defaults to PKGVERSION_NOREV
+#			sometimes you want to override with v${PKGVERSION_NOREV}
+#			SHA-1 commit ids are also acceptable
+# GITLAB_TYPE		overrides the autodetected MASTER_SITE URL scheme.
+#			So far it defaults to tag, as Gitlab custom release files
+#			are new and rare, and handled differently.
+#
+# "tag"
+# This is the default when GITLAB_RELEASE is not defined. Example URL:
+# https://gitlab.com/acct/${GITLAB_PROJECT}/-/archive/${GITHUB_TAG}/${GITLAB_PROJECT}-${GITLAB_TAG}.tar.gz
+#
+# "release"
+# Real life example for a release:
+# https://gitlab.com/teknokatze/fish-guix/uploads/40ed37a9c916b533ba69b37ec99f2939/fish-guix-0.1.2.3.tar.xz
+# Corresponding tag and commit:
+# https://gitlab.com/teknokatze/fish-guix/-/commit/23a3ec027bc5b14b41d96b14a2451c49e935e2b6
+# https://gitlab.com/teknokatze/fish-guix/-/tags/0.1.2.3
+# https://gitlab.com/teknokatze/fish-guix/-/archive/0.1.2.3/fish-guix-0.1.2.3.tar.gz
+#
+# Keywords: gitlab
+
+MASTER_SITE_GITLAB+=	https://gitlab.com/
+
+.if defined(MASTER_SITES) && !empty(MASTER_SITES:C,^https\://gitlab.com/[-a-zA-Z0-9]*/$,match,:Mmatch)
+_USE_GITLAB=		YES
+.endif
+
+.if (defined(GITLAB_TAG) || defined(GITLAB_RELEASE)) && !defined(_USE_GITLAB)
+PKG_FAIL_REASON+=	"MASTER_SITES must match https://gitlab.com/account/";	\
+			"when GITLAB_TAG or GITLAB_RELEASE is in use."		\
+			"For more information: make help topic=gitlab"
+.endif
+
+.if defined(_USE_GITLAB) && !empty(_USE_GITLAB:M[yY][eE][sS])
+
+GITLAB_PROJECT?=	${PKGBASE}
+GITLAB_TAG?=		${PKGVERSION_NOREV}
+
+.  if !empty(GITLAB_TAG:Mmaster)
+PKG_FAIL_REASON+=	"master is not a valid tag name, use an explicit commit hash"
+.  endif
+
+.  if !empty(GITLAB_TYPE:Mrelease) && empty(GITLAB_RELEASE_HASH)
+PKG_FAIL_REASON+=	"GITLAB_RELEASE requires GITLAB_RELEASE_HASH to be used"
+.  endif
+
+.  if !defined(GITLAB_TYPE)
+.    if defined(GITLAB_RELEASE) && !empty(GITLAB_RELEASE)
+GITLAB_TYPE=	release
+.    else
+GITLAB_TYPE=	tag
+.    endif
+.  endif
+
+.  if !empty(GITLAB_TYPE:Mtag) && !empty(GITLAB_TAG:M[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]*)
+# If the gitlab tag is a git hash (7 or more hex digits), encode it in the
+# distfile name.
+_GITLAB_DEFAULT_DISTFILES=	${DISTNAME}-${GITLAB_TAG}${EXTRACT_SUFX}
+.  else
+_GITLAB_DEFAULT_DISTFILES=	${DISTNAME}${EXTRACT_SUFX}
+.  endif
+
+.  if !empty(GITLAB_TYPE:Mrelease) && !empty(GITLAB_RELEASE_HASH)
+SITES.${_GITLAB_DEFAULT_DISTFILES}=	-${MASTER_SITES:=${GITLAB_PROJECT}/uploads/${GITLAB_RELEASE_HASH}/${GITLAB_RELEASE}${EXTRACT_SUFX}}
+.  endif
+
+.  if !empty(GITLAB_TYPE:Mtag)
+SITES.${_GITLAB_DEFAULT_DISTFILES}=	-${MASTER_SITES:=${GITLAB_PROJECT}/-/archive/${GITLAB_TAG}/${GITLAB_PROJECT}-${GITLAB_TAG}${EXTRACT_SUFX}}
+.  endif
+
+.endif
+
+_VARGROUPS+=		gitlab
+_PKG_VARS.gitlab=	GITLAB_PROJECT DISTNAME GITLAB_TYPE GITLAB_TAG \
+			GITLAB_RELEASE GITLAB_RELEASE_HASH MASTER_SITES EXTRACT_SUFX
+_DEF_VARS.gitlab=	_USE_GITLAB _GITLAB_DEFAULT_DISTFILES \
+			SITES.${_GITLAB_DEFAULT_DISTFILES}
+_USE_VARS.gitlab=	PKGBASE PKGVERSION_NOREV
+_LISTED_VARS.gitlab=	SITES.*