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Some improvements to fetch-submodules.sh I thought I committed weeks ago

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This commit is contained in:
T. Joseph Carter 2015-03-14 19:54:54 -07:00
parent cb0f3d844f
commit 28740e969d
1 changed files with 45 additions and 26 deletions
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71
fetch-submodules.sh
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@ -1,58 +1,77 @@
#! /usr/bin/env bash
# vim: set ts=3 sw=3 noet ft=sh : bash
# TODO: This entire script _should_ be replaced with git submodules, but
# that cannot be done until we sort out the limitations of that option. At
# this time, this script is called by libretro-super. Revisit the whole
# issue at some point.
SCRIPT="${0#./}"
BASE_DIR="${SCRIPT%/*}"
WORKDIR=$(pwd)
WORKDIR="$PWD"
if [ "$BASE_DIR" = "$SCRIPT" ]; then
BASE_DIR="$WORKDIR"
else
BASE_DIR="$WORKDIR/$BASE_DIR"
if [[ "$0" != /* ]]; then
# Make the path absolute
BASE_DIR="$WORKDIR/$BASE_DIR"
fi
fi
WORKDIR=$(pwd)
# Inserted here is libretro-super's script-modules/fetch-rules.sh, with a
# couple of features related to core submodules removed from fetch_git. If
# that file is changed, it should be safe to import it verbatim.
### START OF FETCH-RULES.SH (with mods)
# A stripped-down version of the fetch_git rule from libretro-super
# Clones or pulls updates from a git repository into a local directory
# fetch_git: Clones or pulls updates from a git repository into a local directory
#
# $1 The URI to fetch
# $2 The local directory to fetch to (relative)
#
# NOTE: git _now_ has a -C argument that would replace the cd commands in
# this rule, but this is a fairly recent addition to git, so we can't
# use it here. --iKarith
fetch_git() {
fetch_dir="$WORKDIR/$2"
if [ -d "$fetch_dir/.git" ]; then
echo "cd \"$fetch_dir\""
cd "$fetch_dir"
echo git pull
echo "git pull"
git pull
else
echo "git clone \"$1\" \"$fetch_dir\""
git clone "$1" "$fetch_dir"
clone_type=
[ -n "$SHALLOW_CLONE" ] && depth="--depth 1"
echo "git clone $depth \"$1\" \"$WORKDIR/$2\""
git clone $depth "$1" "$WORKDIR/$2"
fi
}
# fetch_revision_git: Output the hash of the last commit in a git repository
#
# $1 Local directory to run git in
fetch_revision_git() {
[ -n "$1" ] && cd "$1"
git log -n 1 --pretty=format:%H
}
# fetch_revision: Output SCM-dependent revision string of a module
# (currently just calls fetch_revision_git)
#
# $1 The directory of the module
fetch_revision() {
fetch_revision_git $1
}
### END OF FETCH-RULES.SH
echo "Fetching RetroArch's submodules..."
fetch_git "https://github.com/libretro/common-shaders.git" "media/shaders_cg"
fetch_git "https://github.com/libretro/common-overlays.git" "media/overlays"
fetch_git "https://github.com/libretro/retroarch-assets.git" "media/assets"
fetch_git "https://github.com/libretro/retroarch-joypad-autoconfig.git" "media/autoconfig"
fetch_git "https://github.com/libretro/libretro-database.git" "media/libretrodb"
# FIXME: This entire script should be unnecessary. It exists because we don't
# use git submodules in libretro/RetroArch, which introduces one of three
# possible build dependencies:
#
# 1. The user is using libretro-super. But libretro-super is not supposed to
# be required because "no dependencies!"
#
# 2. Unreasonable expectations of the user: That they are deeply versed in the
# changing inner workings of a massively-multi-platform project with dozens
# of modules and submodules, or that they are somehow psychic.
#
# 3. The user has a script which cannot depend on libretro-super to fetch the
# submodules for them. This is it.
#
# The third choice is the path of least resistance, but the correct solution
# is to fix the submodules issue.