[bug] Conan generator results are not overwritten on a second run

[oweissbarth]

Describe the bug

Linux, Ubuntu 22.04, Conan 2.2.3, Python 3.10.12

How to reproduce it

When re-running the install command a second time with different requirements at a later point the conan generator results are not updated.

Run the following commands:

conan install -g CMakeDeps --requires="poco/1.9.4"
conan install -g CMakeDeps --requires="poco/1.13.3"

Afterwards I would expect PocoConfig.cmake to contain information about poco/1.13.3 instead it still contains information about poco/1.9.4.

In PocoConfig.cmake:

[..]
set(Poco_VERSION_STRING "1.9.4")
[..]

See full log below.

Full log

~/conan_install_test   
❯ conan install -g CMakeDeps --requires="poco/1.9.4"
======== Input profiles ========
Profile host:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.cppstd=gnu17
compiler.libcxx=libstdc++11
compiler.version=12
os=Linux
[conf]
Profile build:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.cppstd=gnu17
compiler.libcxx=libstdc++11
compiler.version=12
os=Linux
[conf]
======== Computing dependency graph ========
Graph root
cli
Requirements
bzip2/1.0.8#411fc05e80d47a89045edc1ee6f23c1d - Cache
expat/2.5.0#91e43e4544923e4c934bfad1fa4306f9 - Cache
openssl/1.1.1t#55e398751ff5310a8525645c99c81495 - Cache
pcre/8.45#64cdfd792761c32817cd31d7967c3709 - Cache
poco/1.9.4#f7cfa1f609e6ddef0166efae9d7a479f - Cache
sqlite3/3.40.1#c5e96fa97eb3c61b44120e2695f528c9 - Cache
zlib/1.2.13#4e74ebf1361fe6fb60326f473f276eb5 - Cache
======== Computing necessary packages ========
Requirements
bzip2/1.0.8#411fc05e80d47a89045edc1ee6f23c1d:4530633a3406a354d9c70a71124250144067de22#9a9214178cf9d49820bac01bd07c7253 - Cache
expat/2.5.0#91e43e4544923e4c934bfad1fa4306f9:09d00c087ec9c49f97b61c5a54bbeac1efa85f1d#705f9786d744669ca8c9789e8fccf03c - Cache
openssl/1.1.1t#55e398751ff5310a8525645c99c81495:3dbf44d5043a2124b7b7670dedfd65ce721f96a2#434234559e6a04b6c0e877eae12fd16a - Cache
pcre/8.45#64cdfd792761c32817cd31d7967c3709:92295a7a788424942c3cfe005079f3f47f8a52d8#cd66f7b25e90d21a5322ac2077035f4d - Cache
poco/1.9.4#f7cfa1f609e6ddef0166efae9d7a479f:5b627615c5ff5326eb2cac865102e7a2f9275745#2c429146cf8198c62e531235cb5a2474 - Cache
sqlite3/3.40.1#c5e96fa97eb3c61b44120e2695f528c9:f38ea0d5445898b826d5977d9204cf9896cd53e0#d49c45deb815e43154379a32e64a6047 - Cache
zlib/1.2.13#4e74ebf1361fe6fb60326f473f276eb5:5bc851010eb7b707e5cb2e24cb8ccf0f27989fa9#8ff68b8d2a999d34f0b2a3faa36360a0 - Cache
======== Installing packages ========
bzip2/1.0.8: Already installed! (1 of 7)
expat/2.5.0: Already installed! (2 of 7)
openssl/1.1.1t: Already installed! (3 of 7)
sqlite3/3.40.1: Already installed! (4 of 7)
zlib/1.2.13: Already installed! (5 of 7)
pcre/8.45: Already installed! (6 of 7)
poco/1.9.4: Already installed! (7 of 7)
WARN: deprecated: Usage of deprecated Conan 1.X features that will be removed in Conan 2.X:
WARN: deprecated:     'cpp_info.names' used in: zlib/1.2.13, poco/1.9.4, expat/2.5.0, pcre/8.45, sqlite3/3.40.1, bzip2/1.0.8, openssl/1.1.1t
WARN: deprecated:     'cpp_info.build_modules' used in: openssl/1.1.1t, bzip2/1.0.8, sqlite3/3.40.1
WARN: deprecated:     'env_info' used in: bzip2/1.0.8, sqlite3/3.40.1, pcre/8.45
WARN: deprecated:     'cpp_info.filenames' used in: poco/1.9.4, sqlite3/3.40.1
======== Finalizing install (deploy, generators) ========
cli: Writing generators to /home/oweissbarth/conan_install_test
cli: Generator 'CMakeDeps' calling 'generate()'
cli: CMakeDeps necessary find_package() and targets for your CMakeLists.txt
find_package(Poco)
target_link_libraries(... Poco::Poco)
cli: Generating aggregated env files
cli: Generated aggregated env files: ['conanbuild.sh', 'conanrun.sh']
Install finished successfully
~/conan_install_test

❯ conan install -g CMakeDeps --requires="poco/1.13.3"
======== Input profiles ========
Profile host:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.cppstd=gnu17
compiler.libcxx=libstdc++11
compiler.version=12
os=Linux
[conf]
Profile build:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.cppstd=gnu17
compiler.libcxx=libstdc++11
compiler.version=12
os=Linux
[conf]
======== Computing dependency graph ========
Graph root
cli
Requirements
bzip2/1.0.8#411fc05e80d47a89045edc1ee6f23c1d - Cache
expat/2.6.2#2d385d0d50eb5561006a7ff9e356656b - Cache
libmysqlclient/8.1.0#ecca1993f7ce32371ef5436f3639074a - Cache
libpq/15.4#cbae5e1ee85bd5e959e039e00307e8b1 - Cache
lz4/1.9.4#1217a03c990b79aa34ed0faede18f534 - Cache
openssl/1.1.1w#48acccc156e0cd9d775a2ebb4f0aa0ba - Cache
pcre2/10.42#74a354d74d291503aadffe6453d976f5 - Cache
poco/1.13.3#007642154974b1f81167b7a3581749aa - Cache
sqlite3/3.45.0#3a7911478ffd14e7acc694ac113449b6 - Cache
zlib/1.2.13#4e74ebf1361fe6fb60326f473f276eb5 - Cache
zstd/1.5.5#93372fe14bb7883bd4de82914e0a1841 - Cache
Resolved version ranges
expat/[>=2.6.2 <3]: expat/2.6.2
openssl/[>=1.1 <4]: openssl/1.1.1w
zlib/[>=1.2.11 <2]: zlib/1.2.13
======== Computing necessary packages ========
Requirements
bzip2/1.0.8#411fc05e80d47a89045edc1ee6f23c1d:4530633a3406a354d9c70a71124250144067de22#9a9214178cf9d49820bac01bd07c7253 - Cache
expat/2.6.2#2d385d0d50eb5561006a7ff9e356656b:09d00c087ec9c49f97b61c5a54bbeac1efa85f1d#123374f07887fcf9952591561d857239 - Cache
libmysqlclient/8.1.0#ecca1993f7ce32371ef5436f3639074a:212d63eb944ed08bf9a0c661a7feecbe6e719251#506bfc3ea47fcc760ac87bf2b72cdf2e - Cache
libpq/15.4#cbae5e1ee85bd5e959e039e00307e8b1:5d9c4c73c13f2780ef163cdd8d5c9b84b129bd49#8b907a824c27e2427f31dc0317ca20e5 - Cache
lz4/1.9.4#1217a03c990b79aa34ed0faede18f534:5bc851010eb7b707e5cb2e24cb8ccf0f27989fa9#c532648e4378c750f86be01cb143e82a - Cache
openssl/1.1.1w#48acccc156e0cd9d775a2ebb4f0aa0ba:3dbf44d5043a2124b7b7670dedfd65ce721f96a2#ca6253e6354ce3577a5d324d90f99d63 - Cache
pcre2/10.42#74a354d74d291503aadffe6453d976f5:abe43bf6bc44e57134deaf79b8834d3deb578fd1#114c38cfef13b206899de42294d38d50 - Cache
poco/1.13.3#007642154974b1f81167b7a3581749aa:e401f033d544baa563f800d3c45d513df49282f3#010a49f2e9b426369485aba20a060a91 - Cache
sqlite3/3.45.0#3a7911478ffd14e7acc694ac113449b6:f38ea0d5445898b826d5977d9204cf9896cd53e0#9b821ee034ba798448b57ebec61d27d7 - Cache
zlib/1.2.13#4e74ebf1361fe6fb60326f473f276eb5:5bc851010eb7b707e5cb2e24cb8ccf0f27989fa9#8ff68b8d2a999d34f0b2a3faa36360a0 - Cache
zstd/1.5.5#93372fe14bb7883bd4de82914e0a1841:950eb44845a30cbb22c66873cfcbc02c4ad041e2#8bc887bdd48970c56eab27d623c752c2 - Cache
======== Installing packages ========
bzip2/1.0.8: Already installed! (1 of 11)
expat/2.6.2: Already installed! (2 of 11)
libpq/15.4: Already installed! (3 of 11)
lz4/1.9.4: Already installed! (4 of 11)
openssl/1.1.1w: Already installed! (5 of 11)
sqlite3/3.45.0: Already installed! (6 of 11)
zlib/1.2.13: Already installed! (7 of 11)
zstd/1.5.5: Already installed! (8 of 11)
libmysqlclient/8.1.0: Already installed! (9 of 11)
pcre2/10.42: Already installed! (10 of 11)
pcre2/10.42: Appending PATH environment variable: /home/oweissbarth/.conan2/p/pcre29113ac6da6e0c/p/bin
poco/1.13.3: Already installed! (11 of 11)
WARN: deprecated: Usage of deprecated Conan 1.X features that will be removed in Conan 2.X:
WARN: deprecated:     'cpp_info.names' used in: zstd/1.5.5, libmysqlclient/8.1.0, pcre2/10.42, sqlite3/3.45.0, libpq/15.4, openssl/1.1.1w, expat/2.6.2, bzip2/1.0.8, zlib/1.2.13, poco/1.13.3, lz4/1.9.4
WARN: deprecated:     'cpp_info.build_modules' used in: bzip2/1.0.8, openssl/1.1.1w, sqlite3/3.45.0, lz4/1.9.4
WARN: deprecated:     'env_info' used in: bzip2/1.0.8, libpq/15.4, pcre2/10.42, sqlite3/3.45.0
WARN: deprecated:     'cpp_info.filenames' used in: sqlite3/3.45.0, poco/1.13.3
======== Finalizing install (deploy, generators) ========
cli: Writing generators to /home/oweissbarth/conan_install_test
cli: Generator 'CMakeDeps' calling 'generate()'
cli: CMakeDeps necessary find_package() and targets for your CMakeLists.txt
find_package(Poco)
target_link_libraries(... Poco::Poco)
cli: Generating aggregated env files
cli: Generated aggregated env files: ['conanbuild.sh', 'conanrun.sh']
Install finished successfully
~/conan_install_test

❯ cat PocoConfig.cmake

########## MACROS ###########################################################################
#############################################################################################
Requires CMake > 3.15
if(${CMAKE_VERSION} VERSION_LESS "3.15")
message(FATAL_ERROR "The 'CMakeDeps' generator only works with CMake >= 3.15")
endif()
if(Poco_FIND_QUIETLY)
set(Poco_MESSAGE_MODE VERBOSE)
else()
set(Poco_MESSAGE_MODE STATUS)
endif()
include(${CMAKE_CURRENT_LIST_DIR}/cmakedeps_macros.cmake)
include(${CMAKE_CURRENT_LIST_DIR}/PocoTargets.cmake)
include(CMakeFindDependencyMacro)
check_build_type_defined()
foreach(_DEPENDENCY ${poco_FIND_DEPENDENCY_NAMES} )
# Check that we have not already called a find_package with the transitive dependency
if(NOT ${_DEPENDENCY}_FOUND)
find_dependency(${_DEPENDENCY} REQUIRED ${${_DEPENDENCY}_FIND_MODE})
endif()
endforeach()
set(Poco_VERSION_STRING "1.9.4")
set(Poco_INCLUDE_DIRS ${poco_INCLUDE_DIRS_RELEASE} )
set(Poco_INCLUDE_DIR ${poco_INCLUDE_DIRS_RELEASE} )
set(Poco_LIBRARIES ${poco_LIBRARIES_RELEASE} )
set(Poco_DEFINITIONS ${poco_DEFINITIONS_RELEASE} )
Only the first installed configuration is included to avoid the collision
foreach(_BUILD_MODULE ${poco_BUILD_MODULES_PATHS_RELEASE} )
message(${Poco_MESSAGE_MODE} "Conan: Including build module from '${_BUILD_MODULE}'")
include(${_BUILD_MODULE})
endforeach()