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CT_GetGit: Allow cset to be a ref (branch or tag)

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Pass cset as ref=somename to use this feature. CT_GetGit echos
the cset sha1 on exit since the caller will need to know that
information as it forms part of the downloaded tarball name.

Signed-off-by: Ray Donnelly <mingw.android@gmail.com>
This commit is contained in:
Ray Donnelly 2015-01-11 23:04:05 +00:00
parent 13bb007cb7
commit f95b34d52f
1 changed files with 31 additions and 4 deletions
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33
scripts/functions
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@ -832,18 +832,43 @@ CT_GetSVN() {
# Prerequisites: either the server does not require password,
# or the user has already taken any action to authenticate to the server.
# The cloned tree will *not* be stored in the local tarballs dir!
# Usage: CT_GetGit <basename> <cset> <url>
# cset_or_ref can be a branch or tag, if specified as 'ref=name'
# In this case, 'git ls-remote' is used to get the sha1 and can also
# be used to get a list valid refs (e.g. HEAD, refs/heads/master, refs/tags/v3.3.0)
# Usage: CT_GetGit <basename> <cset_or_ref> <url> <out_cset>
CT_GetGit() {
local basename="${1}"
local cset="${2}"
local cset_or_ref="${2}"
local url="${3}"
local file="${basename}-${cset}.tar.gz"
local _out_cset="${4}"
local ref=$(echo "${cset_or_ref}" | sed -n 's/^ref=\(.*\)/\1/p')
if [ -n "$ref" ]; then
local matches=$(git ls-remote --exit-code "$url" --refs "${ref}")
local result=$?
CT_TestAndAbort "Failed to find git ref ${ref} at ${url}" "${result}" != "0"
if [ $( echo "$matches" | wc -l) -gt 1 ]; then
CT_DoLog WARN "Ambiguous ref ${ref} at ${url}, using first"
fi
local cset=$(echo "$matches" | head -n1 | cut -c1-6)
CT_DoLog INFO "ref ${ref} at ${url} has cset of ${cset}"
else
local cset=${cset_or_ref}
CT_DoLog INFO "cset ${cset}"
fi
if [ -n "${_out_cset}" ]; then
eval ${_out_cset}=\${cset}
fi
local dir="${CT_TARBALLS_DIR}/${basename}-${cset}.git"
local file="${basename}-${cset}.tar.gz"
local dest="${CT_TARBALLS_DIR}/${file}"
local tmp="${CT_TARBALLS_DIR}/${file}.tmp-dl"
# Do we already have it?
if CT_GetLocal "${file}"; then
echo ${cset}
return 0
fi
# Nope...
@ -877,6 +902,8 @@ CT_GetGit() {
CT_SaveLocal "${dest}"
CT_DoExecLog ALL rm -rf "${tmp}.tar.gz" "${tmp}.tar" "${tmp}" "${dir}"
CT_Popd
echo ${cset}
return 0
else
# Woops...
CT_DoExecLog ALL rm -rf "${dir}"