fix: can't switch to remote branch by git fragment

This is helpful when using local_build.sh scripts.

DEBBUILD

@@ -1,32 +1,60 @@
 #/usr/bin/env bash
 
-pkgname="forgejo"
-pkgver=23333    # this will be override by pkgver function
+pkgname="makedeb"
+pkgver=0.0.2.0.g175943a
 pkgrel=1
+arch="all"
 pkgcommit=""
+section="utils"             # https://www.debian.org/doc/debian-policy/ch-archive.html#s-subsections
+priority="optional"         # https://www.debian.org/doc/debian-policy/ch-archive.html#s-priorities
 pkgdesc="A painless selfhost git service."
-url="https://codeberg.org/forgejo/forgejo"
+url="https://git.leafee98.com/leafee98/makedeb"
 maintainer="Leafee98 <me@leafee98.com>"
 
 source=(
-    "forgejo-1.19.0-2-linux-amd64.xz::https://codeberg.org/attachments/5f7f9d36-b85e-40db-b390-9bf39acbbbc5"
-    "bwifi::git+https://cgit.leafee98.com/bwifi.git/#commit=8af4243f622bcb52f2e5be3345e282fd7cbad4d0"
-    "frp-0.46.1.tar.gz::material/frp-0.46.1.tar.gz"
-    "pkg.zip::material/pkg.zip"
-    "t.sh::material/t.sh"
+    "LICENSE::https://git.leafee98.com/leafee98/makedeb/raw/branch/main/LICENSE"    # from http (existed file will skip, without checking hash)
+    "makedeb-repo::git+https://git.leafee98.com/leafee98/makedeb.git#branch=main"   # from git with https
+    "README.md::README.md"                                       # from local file
 )
 
-# This will be run just follow extracting source
+# This will be run just after extracting source, and re-assign to `pkgver`
+#
+# If extracting version from source is not needed, don't define this function.
 function pkgver {
-    echo "1.19.0-2"
+    git describe --tags --long | sed 's/^v//;s/-/./g'
 }
 
 function build {
-    install -D "${srcdir}/t.sh" "${pkgdir}/usr/bin/t.sh"
-    echo "building"
+    echo "Here should do something like compile sources."
+    echo "But for this package we just print some messages."
 }
 
 function package {
-    echo "installing package, pkgdir: ${pkgdir}"
+    install -Dm644 "${srcdir}/LICENSE" "${pkgdir}/usr/share/licenses/makedeb/LICENSE"
+    install -Dm755 "${srcdir}/makedeb-repo/makedeb" "${pkgdir}/usr/bin/makedeb"
+    install -Dm755 "${srcdir}/README.md" "${pkgdir}/usr/share/doc/makedeb/README.md"
 }
 
+# The function describing hook for (pre|post)(inst|rm) should
+# *print* content of those hook file.
+# If the any hook is not needed, don't define those function.
+
+#function debian_preinst {
+#}
+
+function debian_postinst {
+    cat << EOF
+#!/usr/bin/env bash
+echo "successfully installed makedeb"
+EOF
+}
+
+#function debian_prerm {
+#}
+
+function debian_postrm {
+    cat << EOF
+#!/usr/bin/env bash
+echo "successfully removed makedeb"
+EOF
+}

LICENSE

@@ -0,0 +1,22 @@
+MIT License
+
+Copyright (c) 2023 Leafee98
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+

README.md

@@ -0,0 +1,35 @@
+# makedeb
+
+Script for building Debian package quickly and easily. Inspired by Archlinux's makepkg.
+
+## Example
+
+Check the `DEBBUILD`
+
+## Reference
+
+### Build process
+
+First it download needed content from array `sources`, then use function `pkgver` to determine the package version, then run function `build` and function `package`, then run hooks `debian_(pre|post)(inst|rm)` and make the printed strings as debian's hook scripts. Finally generate .deb with files in `$pkgdir`.
+
+### Download and extract source
+
+Every string in array `source` should be like `<actual_file_name>::<download_url>`. When downloading, the `download_url` content will be named with `<actual_file_name>`. When `build` and `pacage` run, every `<actual_file_name>` will be copied to `$srcdir`. If the file is a compressed file, it will be decompressed, if the file is a git repo, the specific branch, commit or tag will be checkouted.
+
+### Global variables
+
+- `pkgname`: package's name
+- `pkgver`: package's version, if need to extract version from source, use function `pkgver`
+- `pkgrel`: debian package reference, it should increase by one every build
+- `pkgdesc`: package's description
+- `section`: default `misc` if not specified
+- `priority`: default `optional` if not specified
+- `url`: packages upstream url
+- `maintainer`: maintainer's contect information
+
+### Global functions
+
+- `pkgver`: should print the actual version. This override the variable `pkgver`
+- `build`: do something like compile source
+- `package`: do something like copy file from `$srcdir` to `$pkgdir`
+- `debian_(pre|post)(inst|rm)`: should print content of debian hooks file

makedeb

@@ -6,10 +6,32 @@ buildfile="${workspace}/DEBBUILD"
 srcdir="${workspace}/src"
 pkgdir="${workspace}/pkg"
 
-FAKE_PACKAGE=0
+_IN_FAKEROOT=0
+_BACKUP_STDOUT=3        # use file descriptor 3 to backup stdout
+_BACKUP_STDERR=4        # use file descriptor 4 to backup stderr
+_ARGLIST=("$@")
 OVERRIDE_SOURCE=0
-SHOW_TARGET_FILE=0
 QUIET=0
+PACKAGELIST=0
+IS_DYNAMICV_PKGVER=0
+
+_STEP_CLEAN=1
+_STEP_RETRIEVE_SOURCE=1
+_STEP_EXTRACT_SOURCE=1
+_STEP_UPDATE_PKGVER=1
+_STEP_CHCECK_PACKAGE_EXISTS=1
+_STEP_BUILD=1
+_STEP_PACKAGE=1
+_STEP_CREATE_ARCHIVE=1
+
+_STOP_AFTER_CLEAN=0
+_STOP_AFTER_RETRIEVE_SOURCE=0
+_STOP_AFTER_EXTRACT_SOURCE=0
+_STOP_AFTER_UPDATE_PKGVER=0
+#_STEP_CHCECK_PACKAGE_EXISTS=0  # stop after checking exists is useless
+_STOP_AFTER_BUILD=0
+_STOP_AFTER_PACKAGE=0
+_STOP_AFTER_CREATE_ARCHIVE=0
 
 set -o functrace
 set -o nounset
@@ -50,10 +72,15 @@ function msg2 {
     local mesg=$1; shift
     printf "${BLUE}  ->${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@"
 }
+function warn {
+    (( QUIET )) && return 0
+    local mesg=$1; shift
+    printf "${YELLOW}==>${ALL_OFF}${BOLD}${YELLOW} ${mesg}${ALL_OFF}\n" "$@" >&2
+}
 function err {
     (( QUIET )) && return 0
     local mesg=$1; shift
-    printf "${RED}  ->${ALL_OFF}${BOLD}${RED} ${mesg}${ALL_OFF}\n" "$@" >&2
+    printf "${RED}==>${ALL_OFF}${BOLD}${RED} ${mesg}${ALL_OFF}\n" "$@" >&2
 }
 
 function get_full_version {
@@ -75,27 +102,44 @@ function debian_control {
     local install_size="$(du --block-size=1K --summarize ${pkgdir} | cut -d $'\t' -f 1)"
     local fv="$(get_full_version)"
 
-    cat << EOF | envsubst
-Package: ${pkgname}
-Version: ${fv}
-Architecture: all
-Maintainer: ${maintainer}
-Installed-Size: ${install_size}
-Description: ${pkgdesc}
-EOF
+    echo "Package: ${pkgname}"
+    echo "Version: ${fv}"
+    echo "Architecture: ${arch}"
+    echo "Maintainer: ${maintainer}"
+    echo "Installed-Size: ${install_size}"
+    echo "Homepage: ${url}"
+
+    [[ -n "${section:=misc}" ]] && echo "Section: ${section}"
+    [[ -n "${priority:=optional}" ]] && echo "Priority: ${priority}"
+
+    echo "Description: ${pkgdesc}"
 }
 
+function generate_control {
+    msg "Generating control info..."
+    mkdir -p "${pkgdir}/DEBIAN"
+    echo 2 > "${pkgdir}/DEBIAN/compat"
+    debian_control > "${pkgdir}/DEBIAN/control"
+
+    function debian_hooks_warpper { is_function "$1" && "$1" > "$2" && chmod +x "$2" || true; }
+    debian_hooks_warpper debian_preinst  ${pkgdir}/DEBIAN/preinst
+    debian_hooks_warpper debian_postinst ${pkgdir}/DEBIAN/postinst
+    debian_hooks_warpper debian_prerm    ${pkgdir}/DEBIAN/prerm
+    debian_hooks_warpper debian_postrm   ${pkgdir}/DEBIAN/postrm
+}
+
+
 function generate_deb {
-    msg "generating deb package..."
+    msg "Generating deb package..."
 
     local tmpdir="$(mktemp --directory)"
     local data_tgz="${tmpdir}/data.tar.gz"
     local control_tgz="${tmpdir}/control.tar.gz"
     local debian_binary="${tmpdir}/debian-binary"
 
-    tar --exclude="./DEBIAN" -C "${pkgdir}" -cf "${data_tgz}" .
+    tar --gzip --exclude="./DEBIAN" -C "${pkgdir}" -cf "${data_tgz}" .
 
-    tar -C "${pkgdir}/DEBIAN" -cf "${control_tgz}" .
+    tar --gzip -C "${pkgdir}/DEBIAN" -cf "${control_tgz}" .
 
     echo 2.0 > "${debian_binary}"
 
@@ -103,7 +147,12 @@ function generate_deb {
 
     rm -rf "${tmpdir}"
 
-    msg2 "generated deb: %s" "$(get_deb_name)"
+    msg2 "Generated deb: %s" "$(get_deb_name)"
+}
+
+function step_create_archive {
+    generate_control
+    generate_deb
 }
 
 function url_type {
@@ -134,10 +183,12 @@ function create_soft_link {
 
     if [[ ! -e "${src}" ]] ; then
         err "soft_link src %s not exist" "${src}"
+        return 1
     fi
 
     if [[ -e "${tgt}" ]] ; then
         err "soft_link tgt %s already exist" "${tgt}"
+        return 1
     fi
 
     ln --symbolic "${src}" "${tgt}"
@@ -154,17 +205,17 @@ function url_fragment {
 
 # $1 is relative path to file
 # $2 is url/(relative path to materials)
-function retrive_source_single {
+function retrieve_source_single {
     local file_name="$1"
     local url="$2"
 
     case "$(url_type "${url}")" in
         "git")
             if [[ -d "${file_name}" ]]; then
-                msg2 "updating ${file_name} from ${url} with git..."
+                msg2 "Updating ${file_name} from ${url} with git..."
                 git --git-dir="${workspace}/${file_name}" fetch --all
             else
-                msg2 "cloning ${file_name} from ${url} with git..."
+                msg2 "Cloning ${file_name} from ${url} with git..."
                 local git_source="${url##git+}"
                 git_source="${git_source%%#*}"
                 git clone --mirror "${git_source}" "${workspace}/${file_name}"
@@ -174,21 +225,21 @@ function retrive_source_single {
             if (( ! OVERRIDE_SOURCE )) && [[ -f "${workspace}/${file_name}" ]] ; then
                 msg2 "${file_name} already exists, skip download"
             else
-                msg2 "retriving ${file_name} from ${url} with curl..."
+                msg2 "Retrieving ${file_name} from ${url} with curl..."
                 curl --location "${url}" --output "${workspace}/${file_name}"
             fi
             ;;
         "file")
             if [[ -e "${workspace}/${url}" ]] ; then
-                msg2 "found local file: ${url}"
+                msg2 "Found local file: ${url}"
             else
-                err "local file not found: ${url}"
+                err "Local file not found: ${url}"
                 err "Aborting..."
                 exit 1
             fi
             ;;
         *)
-            err "retriving url as type ${url_type} not supported"
+            err "Retrieving url as type ${url_type} not supported"
             err "Aborting..."
             exit 1
     esac
@@ -210,7 +261,7 @@ function extract_source_single {
             if [[ -n "${frag}" ]] ; then
                 case "${frag%%=*}" in
                     "branch")
-                        ref="refs/heads/${frag##*=}"
+                        ref="refs/remotes/origin/${frag##*=}"
                         ;;
                     "tag")
                         ref="refs/tags/${frag##*=}"
@@ -225,7 +276,7 @@ function extract_source_single {
                 esac
             fi
 
-            msg2 "extracting git ${workspace}/${file_name} with reference ${ref}"
+            msg2 "Extracting git ${workspace}/${file_name} with reference ${ref}"
             git clone --shared "${workspace}/${file_name}" "${srcdir}/${file_name}"
             git -C "${srcdir}/${file_name}" switch --force-create makedeb --no-track "${ref}"
             ;;
@@ -257,11 +308,11 @@ function decompress_source_file {
         *.zip)
             cmd="unzip" ;;
         *)
-            msg2 "no need to decompress, skip %s" "${file}"
+            msg2 "No need to decompress, skip %s" "${file}"
             return
     esac
 
-    msg2 "decompressing %s with %s" "${file}" "${cmd}"
+    msg2 "Decompressing %s with %s" "${file}" "${cmd}"
     local res=0
     case "$cmd" in
         "tar")
@@ -319,24 +370,24 @@ function check_source_validation {
     done
 }
 
-function clean_dir {
-    msg "cleaning \$srcdir and \$pkgdir..."
+function step_clean_dir {
+    msg "Cleaning \$srcdir and \$pkgdir..."
     rm -rf "${srcdir}" "${pkgdir}"
     mkdir -p "${srcdir}" "${pkgdir}"
 }
 
-function retrieve_source {
-    msg "retrieving source..."
+function step_retrieve_source {
+    msg "Retrieving source..."
     for s in "${source[@]}"; do
         file_name="${s%%::*}"
         url="${s##*::}"
 
-        retrive_source_single "${file_name}" "${url}"
+        retrieve_source_single "${file_name}" "${url}"
     done
 }
 
-function extract_source {
-    msg "extracting source..."
+function step_extract_source {
+    msg "Extracting source..."
     for s in "${source[@]}"; do
         file_name="${s%%::*}"
         url="${s##*::}"
@@ -345,12 +396,12 @@ function extract_source {
     done
 }
 
-function update_pkgver {
+function step_update_pkgver {
     if ! is_function pkgver; then
         return
     fi
 
-    msg "updating pkgver..."
+    msg "Updating pkgver..."
     newpkgver="$(run_function_safe pkgver)"
     if [[ "${newpkgver}" != "${pkgver:-}" ]] ; then
         mapfile -t bfcontent < "${buildfile}"
@@ -367,33 +418,41 @@ function update_pkgver {
 
         source "${buildfile}"
 
-        msg2 "updated version: ${newpkgver}"
+        msg2 "Updated version: ${newpkgver}"
     fi
 
     pkgver="${newpkgver}"
 }
 
-function generate_control {
-
-    msg "generating control info..."
-    mkdir -p "${pkgdir}/DEBIAN"
-    echo 2 > "${pkgdir}/DEBIAN/compat"
-    debian_control > "${pkgdir}/DEBIAN/control"
-
-    function debian_hooks_warpper { is_function "$1" && "$1" > "$2" && chmod +x "$2" || true; }
-    debian_hooks_warpper debian_preinst  ${pkgdir}/DEBIAN/preinst
-    debian_hooks_warpper debian_postinst ${pkgdir}/DEBIAN/postinst
-    debian_hooks_warpper debian_prerm    ${pkgdir}/DEBIAN/prerm
-    debian_hooks_warpper debian_postrm   ${pkgdir}/DEBIAN/postrm
-}
-
 function run_function {
     if is_function "$1" ; then
-        msg "run function: $1"
+        msg "Run function: $1"
         run_function_safe "$1"
     fi
 }
 
+function disable_stdout {
+    exec {_BACKUP_STDOUT}>&1
+    exec 1>/dev/null
+}
+
+function enable_stdout {
+    exec 1>&"$_BACKUP_STDOUT"
+}
+
+function show_help {
+    echo "$0 [OPTIONS]"
+    echo "      -Q                      quiet, disable log"
+    echo "      -f|--force              don't check if package already exists, will"
+    echo "      --nobuild               retrieve source, update pkgver and stop"
+    echo "                              override the existed package"
+    echo "      --noextract             use the current srcdir to build package, skip"
+    echo "                              those retrieve source steps"
+    echo "      --noarchive             retrieve and build, but don't package to .deb"
+    echo "      --packagelist           show file to be generated by current DEBBUILD"
+    echo "      --is-dynamic-pkgver     exit with 0 if DEBBUILD will update pkgver later"
+    echo "      -h|--help               show this message"
+}
 
 ##
 ## Here start the build logic
@@ -401,11 +460,36 @@ function run_function {
 
 while (( "$#" >= 1 )); do
     case "$1" in
-        -F)  FAKE_PACKAGE=1 ;;
-        -OS) OVERRIDE_SOURCE=1 ;;
-        -STF) SHOW_TARGET_FILE=1 ; QUIET=1 ;;
+        -F)                         _IN_FAKEROOT=1 ;;
         -Q)                         QUIET=1 ;;
-        *)   err "Unkown option $1"; break ;;
+        -f|--force)                 _STEP_CHCECK_PACKAGE_EXISTS=0 ;;
+        --noextract)
+            _STEP_CLEAN=0
+            _STEP_RETRIEVE_SOURCE=0
+            _STEP_EXTRACT_SOURCE=0
+            _STEP_UPDATE_PKGVER=0
+            ;;
+        --nobuild)
+            _STEP_CHCECK_PACKAGE_EXISTS=0
+            _STEP_BUILD=0
+            _STEP_PACKAGE=0
+            _STEP_CREATE_ARCHIVE=0
+
+            _STOP_AFTER_UPDATE_PKGVER=1
+            ;;
+        --noarchive)
+            _STEP_CHCECK_PACKAGE_EXISTS=0
+            _STEP_CREATE_ARCHIVE=0
+
+            _STOP_AFTER_BUILD=1
+            ;;
+        --packagelist)              PACKAGELIST=1 ;;
+        --is-dynamic-pkgver)        IS_DYNAMICV_PKGVER=1 ;;
+        -h|--help) show_help ; exit 0;;
+
+        *)  err "Unkown option $1"
+            err "Use $0 --help for help"
+            exit 1 ;;
     esac
     shift
 done
@@ -413,39 +497,75 @@ done
 source "${buildfile}"
 
 
-if (( ! FAKE_PACKAGE )) ; then
-    if (( SHOW_TARGET_FILE )) && ! is_function pkgver ; then
+if (( PACKAGELIST )) ; then
     echo "$(get_deb_name)"
     exit 0
-    fi
+fi
 
+if (( IS_DYNAMICV_PKGVER )) ; then
+    if is_function pkgver ; then
+        exit 0
+    else
+        exit 4
+    fi
+fi
+
+if (( QUIET )) ; then
+    disable_stdout
+fi
+
+if (( ! _IN_FAKEROOT )) ; then
     check_source_validation
 
-    clean_dir
-
-    retrieve_source
-
-    extract_source
-
-    update_pkgver
-
-    if (( SHOW_TARGET_FILE )) && is_function pkgver ; then
-        echo "$(get_deb_name)"
-        exit 0
+    if (( _STEP_CLEAN )) ; then
+        step_clean_dir
     fi
 
+    if (( _STEP_RETRIEVE_SOURCE )) ; then
+        step_retrieve_source
+    fi
+
+    if (( _STEP_EXTRACT_SOURCE )) ; then
+        step_extract_source
+    fi
+
+    if (( _STEP_UPDATE_PKGVER )) ; then
+        step_update_pkgver
+        (( _STOP_AFTER_UPDATE_PKGVER )) && msg "Sources are ready."
+    fi
+
+    # Check if the package already exists
+    if (( _STEP_CHCECK_PACKAGE_EXISTS )) ; then
+        if [[ -f "$(get_deb_name)" ]] ; then
+            warn "%s %s" \
+                    "The package $(get_deb_name) already exists, skipping build." \
+                    "(use -f to force re-build)"
+            exit 0
+        fi
+    fi
+
+    if (( _STEP_BUILD )) ; then
         run_function build
+        (( _STOP_AFTER_BUILD )) && msg "Package directory is ready."
+    fi
 
+    if (( _STEP_PACKAGE || _STEP_CREATE_ARCHIVE )) ; then
         # recursive call self to run rest task in fakeroot
-    msg "entering fakeroot environment..."
-    fakeroot -- bash -$- "${BASH_SOURCE[0]}" -F "${ARGLIST[@]}" || exit $?
-    msg "leaving fakeroot environment..."
-
-    msg "builds has done"
+        msg "Entering fakeroot environment..."
+        fakeroot -- bash -$- "${BASH_SOURCE[0]}" -F "${_ARGLIST[@]}" || exit $?
+        msg "Leaving fakeroot environment..."
+    fi
 else
+    if (( _STEP_PACKAGE )) ; then
         run_function package
+    fi
 
-    generate_control
-
-    generate_deb
+    if (( _STEP_CREATE_ARCHIVE )) ; then
+        step_create_archive
+        msg "Finish making: $(get_deb_name) $(date)"
+    fi
+fi
+
+if (( QUIET )) ; then
+    enable_stdout
 fi

material/t.sh

@@ -1,5 +0,0 @@
-#!/usr/bin/env bash
-
-ls -l
-fakeroot
-ls -l